TW200813500A - Optical compensation film and method of producing the same, polarizing plate and liquid crystal display - Google Patents

Abstract

The present invention provides an optical compensation film capable of effectively performing optical compensation in both a normal direction and an inclined direction to reduce the coloration of the image of a liquid crystal display in the viewing direction, especially for the VA, IPS and OCB mode of liquid crystal display. The said optical compensation film comprises a transparent support having at least one Rth increasing agent (retardation enhancer), and the degree of orientation P defined by the formula P = (3 cos2β -1)/2 measured with a X-ray diffraction method for the said transparent support is within the range of 0.05 to 0.30.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an optical compensation film, a method of manufacturing the same, a polarizing plate, and a liquid crystal display device. [Prior Art]

The liquid crystal display device has a liquid crystal cell and a polarizing plate. The polarizing plate generally has a protective film composed of cellulose acetate and a polarizing film. For example, a polarizing film composed of a polyvinyl alcohol film is dyed with iodine and stretched, and then laminated with a protective film. Made on both sides. In the transmissive liquid crystal display device, the polarizing plate is mounted on both sides of the liquid crystal cell, and there is also a case where one or more optical compensation films are further disposed. In the reflective liquid crystal display device, generally, a reflector, a liquid crystal cell, one or more optical compensation films, and a polarizing plate are arranged in this order. The liquid crystal cell is composed of a liquid crystal molecule, two substrates required for encapsulation thereof, and an electrode layer for applying a voltage to liquid crystal molecules. The liquid crystal cell system performs ON and OFF display with the difference in the alignment state of the liquid crystal molecules, and any of the transmission and reflection types are applicable, such as TN (Twisted Nematic), IPS (In-Plane Switching: In

Plane Switching ), OCB (optical compensation bending: Optically

Prosatory Bend), VA (Vertically Aligned), ECB (Electrically Controlled Birefringence) and other display modes. In such liquid crystal display devices, for applications requiring high display quality, a nematic liquid crystal molecule having a positive dielectric constant anisotropy (200813500 dielectric anisotropy) is mainly used, and is driven by a thin film transistor. A 90° twisted nematic liquid crystal display device (hereinafter referred to as "TN mode"). However, the TN mode has a superior display characteristic when viewed from the front, but has a contrast reduction when viewed from an oblique direction, and causes a gray scale whose brightness is reversed when displayed in gray scale. The viewing angle characteristics of deterioration of display characteristics caused by grayscale inversion or the like are desirably expected to be improved.

On the other hand, the wide viewing angle liquid crystal method such as the IPS mode, the OCB mode, and the VA mode has been expanding its market share in recent years as the demand for liquid crystal televisions has increased. However, although each method has improved its display quality year by year, the problem of color shifting caused by oblique viewing has not been solved. (Japanese Unexamined Patent Publication No. Hei. No. Hei. No. Hei. No. Hei. No. Hei. No. Hei. No. 2-1 76625, Japanese Patent Laid-Open No. Hei No. Hei No. 2-1 76625 Japanese Laid-Open Patent Publication No. Hei. No. Hei. No. Hei. No. Hei. No. Hei. No. Hei. No. Hei. No. Hei. Japanese Patent Application Laid-Open No. Hei 9-80424, Japanese Patent Application Laid-Open No. Hei 10-54982, Japanese Patent No. Hei-Ping No. 2, No. 2, No. 23, No. 9-292522, Japanese Patent Application No. 9-292522 Japanese Patent Laid-Open Publication No. H-mws, Japanese Patent Application Laid-Open No. Hei. No. Hei. No. Hei. No. Hei. No. Hei.

200813500 The reason for this color shift is known to be due to the wavelength dispersion of the optical compensation film Re Rth . Especially in the case of Re, the "reverse dispersion" of Re 値 will increase monotonously with the long wavelength. In the case of Rth, if the wavelength increases, Re 値 will monotonically decrease at the same time. When "scattering", the hue will become neutral, and the angle of view change will have less impact. However, it is generally difficult to obtain a compensation film having the above characteristics in a single piece, and therefore it has been conventional to use two optical compensation films to achieve the wavelength dispersion characteristics. However, if two optical compensation films are used, the thickness of the polarizing plate to which this is applied will increase. Further, since the cost is also increased, it has been desired to use an optical compensation film, that is, to make Re "reversely split" and to make Rth "positively dispersed". SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems to date, and to achieve the object as described above. That is, the object is to provide a liquid crystal display device which can reduce the color in the viewing angle direction by optically compensating not only the optical compensation in the oblique direction, but also in the VA, IPS and OCB modes. Liquid crystal display device. The present invention is to obtain an optical compensation film which can correctly compensate the liquid crystal cell with an optical side in one piece, and improve the color shift in high contrast and black display depending on the viewing direction, especially VA, and Ο. The optical compensation film for the CB mode; the manufacturing method thereof; and the use of the polarizing plate, and the result of the intensive review of the results by the inventors of the present invention and the enhancement of the film by the light film: Time-based IPS [200813500 The method for solving the problem as described above is as follows. That is, the optical compensation film of the present invention is characterized in that it has a transparent support containing at least one Rth rising agent, and the transparent support is defined by the following formula (A) by X-ray diffraction measurement. The degree of alignment P" is 〇.〇5 to 0 · 3 0 : P =< 3 cos2p- 1 > /2 Formula (A). However, 'in the formula (A)' <cos2p>=i(0,7c) cos2pi(P) sinpdp/J ( 〇,π ) I ( β ) sinpdp 〇

Further, in the formula, the angle formed by the incident surface of the X-ray incident on the β-ray and the direction in the plane of the transparent support is I 在 = 8 ° in the X-ray diffraction pattern measured by the angle β. The diffraction intensity of time. A method for producing an optical compensation film of the present invention, characterized by comprising: a casting step of casting a polymer solution of a raw material containing a transparent support of at least one Rth rising agent on a belt; and drying for the casting step a drying step of the obtained film; and an extending step of extending the film at a temperature higher than a glass transition temperature of the transparent support by a temperature of + 15 to + 1 0 〇 ° C after the film is peeled off from the tape. The polarizing plate of the present invention is characterized in that the polarizing plate has a polarizing film and a pair of protective films for holding the polarizing film. At least one of the protective films has a transparent supporting body containing at least one Rth rising agent, and The optical compensation film defined by the above formula (A), which is calculated by X-ray diffraction measurement, is an optical compensation film of 〇.〇5 to 0.30. The liquid crystal display device of the present invention is characterized in that it has a liquid crystal cell and a polarizing plate, the polarizing plate has a polarizing film, and a pair of protective 200813500 films for holding the polarizing film, at least one of the protective films having at least one type The transparent support of the Rth rising agent, and the optical compensation film defined by the above formula (A) calculated by the X-ray diffraction measurement of the transparent support is an optical compensation film of 〇.5 to 0.30. [Embodiment] [Detailed Description of Preferred Embodiments of the Invention] Hereinafter, an optical compensation film, a polarizing plate and a liquid crystal display device of the present invention will be described in detail.

Further, in the description of the present embodiment, the term "4 5 °", "parallel" or "orthogonal" means that it is within a range of less than a strict angle of 5 °. The error with the tight angle is preferably less than 4°, more preferably less than 3°. In addition, regarding the angle, "+" means clockwise, and "one" means counterclockwise. In addition, the "late phase axis" means that the refractive index will be the largest. In addition, the "visible light region" means 380 to 780 nm. Further, unless otherwise noted, the refractive index is measured in the visible light region (λ = 5 50 nm). In addition, in the description of the present embodiment, the "polarizing plate" is a polarizing plate including a long size and a polarizing plate of a size that can be assembled into a liquid crystal device unless otherwise specified. Meaning to use. In addition, the term "cutting" as used herein also includes "punching" and "cutting". In addition, in the description of the present embodiment, "polarizing film" and "polarizing plate" are used. "plate"" is used in a difference, but "polarizer" means a laminate having a transparent protective film for protecting the polarizing film on at least one side of the "polarizing film" 200813500. Further, in the case of the "molecular symmetry axis" in the description of the present embodiment, when the molecule has a rotational symmetry axis, the symmetry axis is referred to, but the molecule is not required to have rotational symmetry in a strict sense. In general, in a discotic liquid crystal compound, a molecular symmetry axis is aligned with a perpendicular axis to a disk surface passing through the center of the disk surface, and in a rod-like liquid crystal compound, The molecular symmetry axis is consistent with the long axis of the molecule.

In addition, in the present specification, Re ( λ ) and Rth (where ^ represents the hysteresis in the plane of the wavelength λ and the hysteresis in the thickness direction, respectively. Re ( ^ is in KOBRA 2 1ADH, or WR (Prince Measurer Limited) The company (manufactured by 0j i Scientific Instruments, Ltd.) measures the light of the wavelength ληιη incident on the normal direction of the film. When the film to be measured is represented by a uniaxial or biaxial refractive index ellipsoid, Rth (5〇) can be calculated by the method described below.

Rth ( λ) is the above-mentioned Re ( λ) with the in-plane slow axis (which can be judged by K0BRA 2 1ADH, or WR) as the tilt axis (rotary axis) (if there is no late phase axis, In any direction of the film plane as a rotation axis), light having a wavelength of ληιη is incident at a distance of 10° from the normal direction to a single side at 50°, and all of them are measured, and then all six are measured, and then KOBRA 21ADH or WR will be calculated based on the hysteresis 値 and the average refractive index of the measurement and the input film thickness 値. As described above, if the retardation axis in the in-plane direction is the rotation axis from the normal direction, and the film having the hysteresis at a certain inclination angle becomes the film in the direction of zero - 10 200813500, the angle is inclined The hysteresis for a large tilt angle is calculated by KOBRA21ADH, or WR after the sign is changed to negative. In addition, the slow axis may be the tilt axis (rotation axis) (if there is no slow phase axis, the arbitrary direction in the film plane is the rotation axis), and the hysteresis is measured by the two directions of any inclination, and then the hysteresis is measured. With the assumption of the average refractive index and the input film thickness 値, Rth 〇cos {sin ^ ^--)) nx (nysin(sin - ^ )}2 + is calculated by the following equations (B) and (C). {nz cos(sin - \ )}2 hx nx Equation (B) However, in the above formula, Re ( Θ ) represents the hysteresis 方向 in the direction inclined by the angle Θ from the normal direction.

Further, in the formula (B), nx represents a refractive index in the in-plane axis direction, ny represents a refractive index in the plane orthogonal to nx, and nz represents orthogonal to nx and ny. The refractive index of the direction.

Rth = ( (nx + ny)/2 - nz)xd (C) 〇 If the film to be measured cannot be represented by a uniaxial or biaxial refractive index ellipsoid, that is, a so-called film without an optical axis, then Calculate Rth (λ) in the following way

Rth (u system will be Re (λ) as described above, with the in-plane retardation axis (can be judged by KOBRA 2 1ADH, or WR) as the tilt axis (rotation axis)' for the film normal direction from one to 50. +50°, the light of the wavelength ληιη is incident from the direction of inclination at intervals of 1〇°, and after measuring 1 1 '200813500, KOBRA 2 1ADH or WR will be based on the measured hysteresis and average refractive index. The assumptions are calculated by the input film thickness 値.

In addition, regarding the assumption of the average refractive index in the above-described measurement, the Polymer Handbook (JOHN) can be used.

WILEY & SONS, INC), a catalogue of various optical films. When the mean refractive index is not known, it can be measured by an Abbe refractometer. The average refractive index of the main optical film is exemplified as follows: deuterated cellulose (1.48), cycloolefin polymer (1·52), polycarbonate ( 1.59), polymethyl methacrylate (1.49), polyphenylene Ethylene (1·59). By inputting the assumption of the average refractive index and the film thickness, KOBRA 21ADH or WR can calculate nx, ny, ηζ. From this calculated nx,ny,ηζ, we can calculate Νζ = ( ηχ - ηζ) / ( nx - ny). In addition, in the present specification, the maximum absorption wavelength (Xmax) is measured by UV-3150 (manufactured by Shimadzu Corp.). (Configuration of Liquid Crystal Display Device) Fig. 1 is a view showing the configuration of a liquid crystal display device of the present invention. As shown in FIG. 1, the OCB mode liquid crystal display device has a liquid crystal layer which is bent and aligned on the substrate surface when a voltage is applied, that is, in a black display, and a substrate 6 for sandwiching the liquid crystal layer. And a liquid crystal cell composed of the substrate 8. The alignment treatment is performed on the surface of the substrate 6 and the substrate 8 on the liquid crystal layer side. Its alignment direction (friction direction) is indicated by an arrow mark RD. In addition, the back side is indicated by a dotted arrow mark. The polarizing films 1, 101 are arranged to sandwich the state of the liquid crystal 200813500, and are arranged such that the transmission axis 2 of the polarizing film 1 and the transmission axis 102 of the polarizing film 1 0 1 are orthogonal to each other, and the liquid crystal cell The RD direction of the liquid crystal layer is at an angle of 4 5 °. An optical compensation film 13Α' (113Α) is disposed between the polarizing film 1 (101) and the liquid crystal cell, and the optical compensation film 13Α (113Α) is made of a cellulose-deposited film ^ ' 1 3 a ( 1 1 3 a ), The molecular structure of the dish-like compound is constituted by an optically anisotropic layer 5 (9) Φ which is fixed in a hybrid alignment state in which the inclination angle of the film plane is different in the thickness direction. The deuterated cellulose film 13a (113a) has its retardation axis 14a (114a) arranged in parallel with the direction of the transmission axis 2 (102) of the adjacent polarizing film 1 (101).

The liquid crystal cell in Fig. 1 is composed of an upper substrate 6 and a lower substrate 8, and a liquid crystal layer formed of liquid crystal molecules 7 sandwiched therebetween. An alignment film (not shown) is formed on the surface of the liquid crystal molecules 7 contacting the substrate 6 and the substrate 8 (hereinafter also referred to as "inner surface"), and liquid crystal molecules are not applied in a voltage state or in a low applied state. The alignment of 7 is controlled in a parallel direction with a pretilt angle. Further, on the inner surfaces of the substrate 6 and the substrate 8, a transparent electrode (not shown) capable of applying a voltage to the liquid crystal layer composed of the liquid crystal molecules 7 is formed. In the present invention, the liquid crystal layer has a thickness d (μηι) and a refractive index. The product Δη · d of the different directionality Δ η is preferably set to 0.1 to 1.5 μm, more preferably set to 0.2 to 1.5 μm, and still more preferably set to be 0.3 to 1.2 μm, particularly preferably set at 0.4 to 1.0 μηι. In the case of these ranges, since the brightness of the white display when the white voltage of 200813500 is applied is high, a bright high-contrast display device can be obtained. The liquid crystal material to be used is not particularly limited, but when a mode of applying an electric field between the upper and lower substrates 6 and the substrate 8 is used, a dielectric constant such as that the liquid crystal molecules 7 are parallel to the electric field direction is used. A liquid crystal material with a positive directivity. For example, when the liquid crystal cell is made into a liquid crystal cell of the OCB mode, the dielectric anisotropy can be used between the upper substrate 6 and the lower substrate 8, and Δη = 0 · 16 6 and Α ε = 5 Column type liquid crystal materials, etc.

The thickness d of the liquid crystal layer is not particularly limited, but may be set at about 4 μm when a liquid crystal having the characteristics as described above is used. Since the brightness in the white display varies depending on the magnitude of the product d·d of the thickness d and the refractive index anisotropy An when the white voltage is applied, if sufficient brightness is to be obtained when the white voltage is applied, then Δη·d of the liquid crystal layer having no applied state is preferably set in the range of 0.4 to 1.0 μm. Further, in the OCB mode liquid crystal display device, a chiral agent which is generally used in a liquid crystal display device of a ΤΝ mode is used less because of deterioration of dynamic response characteristics, but also has a reduced alignment. Bad additions. Further, in the case of being made into a multi-domain structure, it is advantageous to adjust the alignment of the liquid crystal molecules in the boundary region between the domains. The "multi-domain structure" refers to a structure in which one pixel of a liquid crystal display device is divided into a plurality of regions. For example, in the OCB mode, if a multi-domain structure is adopted, the viewing angle characteristics of luminance or hue will be improved, and therefore it is preferable. -14- 200813500 Specifically, by averaging two or more (preferably four or eight) regions in which the initial alignment state of the liquid crystal molecules is different from each other, the pixel can be reduced in dependence on the viewing angle. The shift in brightness or hue. Further, when each pixel is composed of two or more regions which are different from each other in the direction in which the alignment direction of the liquid crystal molecules continuously changes when the voltage is applied, the same effect can be obtained.

The transparent support 1 3 a ( 1 1 3 a ) can also be used as a support for the optically isotropic layer 5 (9), and can also be used as a protective film for the polarizing film 1 (1 〇 1 ), or both. Features. In other words, the polarizing film 1 (101), the transparent support 13a (113a), and the optically isotropic layer 5 (9) can be integrated into a liquid crystal display device as an integrated laminate, or can be separately used as separate Components are assembled. Further, a configuration may be adopted in which a protective film for a polarizing film is disposed between the transparent support 13a (113a) and the polarizing film 1 (1 〇 1 ), but it is preferable that the protective film is not disposed. The retardation axis 14a of the transparent support 13a and the retardation axis 114a of the transparent support 113a are preferably substantially parallel or orthogonal to each other. When the retardation axis 14a of the transparent support 13a and the retardation axis 1 14a of the transparent support 1 13a are orthogonal to each other, by perpendicularly canceling the birefringence of each transparent support, vertical incidence can be reduced on the liquid crystal display. The optical properties of the device will degrade. Further, when the retardation axes 14a and 114a are parallel to each other, if there is a residual phase difference in the liquid crystal layer, the phase difference can be compensated by the birefringence of the protective film. Regarding the transmission axis 2 (102) of the polarizing film 1 (101), the retardation axis direction 14a (114a) of the transparent support 13a (113a), and the alignment direction of the liquid crystal molecules 7-15-200813500, it is used for each member. The material, the display mode, and the laminated structure of the members are adjusted to the optimum range. That is, the transmission axis 2 of the polarizing film 1 and the transmission axis 102 of the polarizing film 101 are disposed so as to be substantially orthogonal to each other. However, the liquid crystal display device 'of the present invention' is not limited to this configuration. The optically oriented layer 5 ( 9 ) is disposed on the transparent support 1 3 a (

1 1 3 a ) between the liquid crystal cells. The optically anisotropic layer 5 (9) is a layer formed of a liquid crystalline compound such as a composition containing a rod-like compound or a discotic compound. In the optically anisotropic layer 5 (9), the molecular system of the liquid crystalline compound is fixed in a specific alignment state. The molecular symmetry axis of the liquid crystalline compound in the optically anisotropic layer 5 (9), at least in the alignment average direction 5a (9a) at the interface of the transparent support 13a (113a), and the transparent support 13a (113a) The retardation axes 14a (114a) in the plane intersect at approximately 45°. When configured in such a relationship, the optically isotropic layer 5 ( 9 ) will cause hysteresis to incident light from the normal direction so as not to cause light leakage, and incident light from oblique direction The effects of the present invention are fully exerted. At the interface of the liquid crystal cell side, the alignment average direction of the molecular symmetry axis of the optically anisotropic layer 5 (9) is preferably 45 for the retardation axis 14a (114a) in the plane of the transparent support 13a (113a). ° . Further, the alignment average direction 5 a of the polarizing film side (optical anisotropic layer interface side) of the molecular symmetry axis of the liquid crystal compound of the optically anisotropic layer 5 is preferably the transmission axis 2 of the polarizing film 1 which is located closer. Approximate configuration is -16- 200813500 45°. The alignment average direction 9a of the polarizing film side (optical anisotropic layer interface side) of the molecular symmetry axis of the liquid crystal compound of the optically anisotropic layer 9 is preferably substantially disposed on the transmission axis 102 of the polarizing film 101 which is closer. In 45°. When arranged in such a relationship, the optical switch can be performed in response to the hysteresis generated by the optical anisotropic layer 5 ( 9 ) and the hysteresis generated in the liquid crystal layer, and the incident light from the oblique direction can be sufficiently The effects of the present invention are exerted. <Principles of Image Display>

Next, referring to Fig. 1, the principle of image display of the liquid crystal display device will be described below. When a driving state corresponding to a driving voltage of black is applied to each of the transparent electrodes (not shown) of the substrate 6 and the substrate 8 of the liquid crystal cell, the liquid crystal molecules 7 in the liquid crystal layer are curved and aligned, and the in-plane retardation at that time is The in-plane hysteresis of the optically isotropic layer 5 (9) is offset, and as a result, the polarization state of the incident light hardly changes. Since the transmission axis 2 of the polarizing film 1 and the transmission axis 102 of the polarizing film 1 〇1 are orthogonal, the light incident from the lower side is polarized by the polarizing film 1 〇1 and remains in the polarized state. The liquid crystal cell is blocked by the polarizing film 1. That is, in the liquid crystal display device of Fig. 1, an ideal black display can be realized in the driving state. On the other hand, when a driving state corresponding to the driving voltage of white is applied to the transparent electrode (not shown), the liquid crystal molecules 7 in the liquid crystal layer will have a curved alignment different from the curved alignment corresponding to black, so that the front side is The in-plane hysteresis changes to the case of black. As a result, it is impossible to pass through the liquid crystal cell by the in-plane retardation of the optical anisotropic layer 5 (9), and the polarization state is changed to pass through the polarizing film 1 by -17-200813500. That is, a white display can be obtained. Conventionally, in the OCB mode, even if the contrast of the front side is high, the problem is reduced in the oblique direction. In the case of black display, high contrast can be obtained by compensation of the liquid crystal cell and the optical anisotropic layer on the front side. However, when viewed from an oblique direction, birefringence and polarization of the polarization axis are generated in the liquid crystal molecule 7. .

Further, the intersection angle between the transmission axis 2 of the polarizing film 1 and the transmission axis 102 of the polarizing film 101 is orthogonal to 90° on the front side, but is shifted from 90° when viewed obliquely. So far, there has been a problem that the light leakage is caused by the two factors in the oblique direction, resulting in a decrease in contrast. The liquid crystal display device of the present invention having the configuration shown in Fig. 1 uses a transparent support 1 3 a (1) which has inconsistent Re/Rth in each of R, G, and B and has optical characteristics conforming to specific conditions. 1 3 a ) to reduce the light leakage during black display to improve contrast. More specifically, the present invention achieves light of respective wavelengths of R, G, and B for oblique incidence by using a transparent support having optical characteristics as described above and an optically anisotropic layer, at different wavelengths. Optical compensation is implemented by the slow phase axis and hysteresis. Further, the optically anisotropic layer 5 ( 9 ) in which the alignment of the liquid crystal compound is fixed is disposed such that the molecular symmetry axis of the liquid crystal compound is delayed in the alignment average direction of the transparent support side interface and the transparent support When the axes are crossed at 45°, a unique compensation method for 〇CB alignment can be achieved at all wavelengths. As a result, the viewing angle contrast of the black display can be particularly improved, and -18-200813500 can particularly reduce the coloring in the viewing direction of the black display. In particular, when the angle of view is changed in the left-right direction, for example, in the azimuth direction of the 〇° and the 60° polar angle in the direction of 180°, although the difference in coloring has occurred in the past, and the left-right asymmetry is caused, it is also possible to obtain special Improve the land.

In the present specification, the wavelengths of R, G, and B use a wavelength of 63 nm, a wavelength of 5 50 nm for G, and a wavelength of 450 nm for B. Although the wavelengths of R, G, and B are not necessarily represented by the wavelength, they are suitable wavelengths for specifying optical characteristics capable of exerting the effects of the present invention. Particularly in the present invention, particular attention is paid to the ratio of Re to Rth of the transparent support Re/Rth. This is because the Re of Re/Rth is used to determine the two intrinsic polarization axes in the light propagation of the biaxial birefringent medium in the oblique direction. The two natural polarization axes in the light propagation of the biaxial birefringence medium in the oblique direction correspond to the major axis and the minor axis of the profile formed when the refractive index ellipsoid is cut in the normal direction of the light proceeding direction. direction. Fig. 2 shows the direction of one of the two natural polarizations when the incident oblique light is applied to the transparent support of the present invention, that is, in this case, the angle of the retardation axis is calculated and Re An example of the result of the /Rth relationship. In addition, Fig. 2 assumes that the direction of light propagation is azimuth = 45 ° and polar angle = 34 °. As shown in Fig. 2, the angle of the slow phase axis is independent of the wavelength of the incident light and depends only on Re/Rth. The change in the polarization state of the incident light due to the transparent support depends mainly on the azimuth axis orientation of the transparent support and the hysteresis of the transparent support, but the prior art does not relate to R, G. The wavelengths of B and B of R/Rth are almost the same, and the angle of the late phase axis of 200813500 is also substantially the same. On the other hand, in the present invention, the relationship of the Re/Rth relationship is defined for each of the wavelengths of R, G, and B, so that both the retardation axis and the hysteresis of the factor that mainly determines the change in the polarization state are satisfied. , G, B wavelengths are optimized.

Further, when the oblique light passing through the transparent support passes through the optically anisotropic layer which is fixed by the alignment of the liquid crystalline compound and passes through the liquid crystal layer which is aligned, the Re/Rth of the transparent support can be obtained. The wavelength is then adjusted to compensate for any wavelength and compensates for both the hysteresis and the upper and lower polarizing films. Specifically, by increasing the Re/Rth of the transparent support by increasing the wavelength, the difference between the polarization states of the R, G, and B due to wavelength dispersion of the optical anisotropic layer and the liquid crystal cell layer can be eliminated. . As a result, complete compensation can be achieved to reduce contrast reduction. In other words, if R, G, and B represent all of the visible light regions to determine the parameters of the film, substantially complete compensation can be achieved in all areas of visible light. Here, the polar angle and the azimuth angle are defined as follows. "Polar angle" is the normal direction of the optical compensation film surface, that is, the inclination angle from the z-axis in Fig. 1, for example, the normal direction of the optical compensation film surface is 0° The direction. "Azimuth" means an azimuth that rotates counterclockwise based on the positive direction of the X-axis. For example, the positive direction of the X-axis is azimuth = 0°, and the positive direction of the y-axis is azimuth = 9 0° direction. The black light leakage will be the most problematic oblique direction, because the polarization of the polarizing layer -20- 200813500 is ±45 ′, so the main point is that the polar angle is not 〇. In the case of azimuth = 0°, 90°, 180°, 270. The situation. To explain the effects of the present invention in more detail, the state of polarization of light incident on the liquid crystal display device is shown on the Poincare sphere in Fig. 3. Further, in Fig. 3, the S2 axis is a shaft that extends vertically downward from the paper surface, and Fig. 3 is a view of the Puancarre ball viewed from the positive direction of the S2 axis. In addition, since the third figure is shown in a plane manner, the displacement of the point before and after the change of the polarization state is indicated by the arrow mark of the straight line in the figure, but actually the polarization caused by the liquid crystal layer or the transparent support The state change is indicated on the Puancarre ball by rotating a specific angle around a specific axis determined by the respective optical characteristics. Hereinafter, the same applies to the fifth and sixth figures.

Fig. 3A is a view showing a change in the polarization state of the G light incident from the left 60° in the liquid crystal display device of Fig. 1, and Fig. 3B showing a change in the polarization state of the G light incident from the right 60°. . Further, regarding the optical characteristics of the transparent support 1 3 a (1 1 3 a ) and the optical characteristics of the optically anisotropic layer 5 ( 9 ), it is assumed to be the Puankare ball as shown in Fig. 6 which will be described later. Calculate the same conditions. The G light incident from the left 6〇° is as shown by the point on the 3A Apu-Carre ball, and the polarization state changes. Specifically, the polarized state h of the G light passing through the polarizing film 101 becomes a polarized state of 12 by the transparent support 113a, a polarized state of 13 by the optical anisotropic layer 9, and a liquid crystal cell when black is displayed. The liquid crystal layer is in a polarized state of 14 and is in a polarized state of 15 by the optically isotropic layer 5, and is in a polarized state of 16 by the transparent support 13a, and is shielded by the polarizing film 1 of -21 to 200813500, and is preferably displayed. black. The G light incident relative to the right 60° changes its polarization state as I!'-12'-13'-14'-15'-16'.

If the form of the change in the polarization state is reviewed, the change in the polarization state caused by the optically isotropic layer 5 (9) and the liquid crystal layer 7 is such that the incident light from the left 60° and the right 60° is The mirror symmetry changes, but the change in the polarization state caused by the transparent support 1 3 a ( 1 1 3 a ) is consistent with the incident light from the left 60° and the right 60°. In order to reduce the left and right black light leakage and the left and right color shifts, it is necessary to satisfy the compensation condition for both the right and left wavelengths. That is, not only the G light, but also the incident light of each of R (red) and B (blue) in the visible light region is required to be coincident with the positions of 16 and 16', and the position thereof is indicated by the polarizing film 1. The position of the broken polarized state. The change as described above is indicated by a straight line on the graph, but the Puankare sphere is not limited to this linear transition. Fig. 4 is a view showing the configuration of a conventional OCB mode liquid crystal display device disclosed in Japanese Laid-Open Patent Publication No. Hei. No. Hei. As shown in Fig. 4, this configuration is not provided with an optical compensation film in which Re/Rth exhibits wavelength dependence as described above, and the transparent support 3a (103a) is disposed. The transparent support 3a (103a) is used for the purpose of supporting the optically anisotropic layer 5 (9), and is composed of a general polymer film. Therefore, there is no wavelength dependence on Re/Rth exhibited by the transparent support 1 3 a (1 1 3 a ), and the same Re and Rth appear at any wavelength in R, G, and B. As a result, the conventional 〇CB mode liquid crystal display device, when applying the voltage of -22-200813500, that is, when it is displayed in black, will cause the front side to be retarded in front of the liquid crystal cell and the optical anisotropic layer. 'Get black, but in the oblique direction can not completely suppress the black light leakage problem. In addition, sufficient viewing angle contrast cannot be obtained, and since all wavelengths cannot be compensated for, there is a coloring problem.

For the sake of more detailed explanation, the polarization states of the R, G, and B lights of the OCB mode liquid crystal display device of the conventional configuration shown in Fig. 4 are calculated, and the results are as shown on the Puankare ball of Fig. 5. Fig. 5A is a diagram showing changes in the polarization state of light incident from the left 60° to each of R, G, and B, and Fig. 5B is a change in the polarization state of light incident from the right 60° to each of R, G, and The picture shown by B. In the figure, the polarization state of R incident light is represented by IR, the polarization state of G incident light is represented by IG, and the polarization state of B incident light is represented by IB. In addition, in the conventional OCB mode liquid crystal display device, it is assumed that the transparent support 3 a (1 0 3 a ) in FIG. 4 is Re = 45 nm for any wavelengths of R, G, and B, and Rth = The calculation was performed at 160 nm and the optically isotropic layer 5 (9) was Re = 30 nm. First, in the fifth embodiment, IR1, Icn, and the system are equalized by the polarized state after the polarizing film 101. When looking at the change of the polarization state of the B light, it can be understood that the B light incident from the left 60°, the polarization state Ib2 after passing through the transparent support l〇3a, is displaced by the optically isotropic layer 9 The direction of the transition is the same direction, and the B light incident from the right 60° passes through the polarized state IB2' of the transparent support l〇3a, and is displaced in the opposite direction to the direction that is changed by the optically isotropic layer 9. direction. That is, in the case of the light incident from the left and the light incident from the right, the transparent support l 〇 3a imparts a different influence on the polarization -23-200813500 state. As a result, not only the position of the final transition states Ir6, IG6, and IB6 of the incident light from the left 60° of R, G, and B, but also the final transition of the incident light from the right 60° R, G, and B. The positions of the states Ir6', Ig6', and IB6' are inconsistent, and are completely different positions in terms of the left 60° and the right 60°. Therefore, the light leakage of the left and right sides and the color shift of the left and right are caused, but it is difficult to improve the same at the same time.

In the present invention, a transparent support which exhibits specific optical characteristics is disposed to simultaneously improve the left and right black light leakage of the OCB mode liquid crystal display device and the left and right color shifts. To explain in more detail, the results of the calculation of the polarization states of the R, G, and B lights of the OCB mode liquid crystal display device constructed by the present invention shown in Fig. 1 are shown on the Puancarre ball of Fig. 6. Fig. 6A is a diagram showing changes in the polarization state of light incident from the left 60° to each of R, G, and B, and Fig. 6B is a change in the polarization state of light incident from the right 60° to R, G, and B. The picture shown. In Figs. 6A and 6B, the polarization state of R incident light is represented by IR, the polarization of G incident light, the state is represented by IG, and the polarization state of B incident light is represented by IB. In addition, it is assumed that the transparent support 13 (113) is at a wavelength of 45 0 nm, Re/Rth (Re(45G)/Rth(.4 5〇)) is 〇·17, and Re/Rth at a wavelength of 550 nm (Re( 55(n/Rth(55())) is 〇·28, and Re/Rth ((Re ( 63.)/Rth ( 63.)))) at a wavelength of 650 nm is 0.39, and Rth at a wavelength of 550 nm ( Rth(55〇)) is calculated for 160 nm. Regarding the Re of the optical anisotropic layer 5 (9), it is assumed to be the same as the Puankare ball shown in Fig. 5. -24- 200813500 As shown in FIGS. 6A and 6B, the R light, the G light, and the B light incident from the left and right are passed through the transparent support 113a, and then change to a position near S1=〇, and reflect the Re of the transparent support. The polarization state of the position shifted by /Rth wavelength dependence. This displacement 'can offset the polarization state displacement of the R light, G light, and B light due to the wavelength dispersion of the optical anisotropic layer 9 ( 5 ) and the liquid crystal layer 7 As a result, the light incident from either of the left and right directions can be made to be at the same position without depending on the wavelength, and as a result, the left and right black light leakage and the left and right color displacement can be simultaneously improved.

The present invention is a transparent support body as described above by using a wavelength dispersion having hysteresis because the incident light is a normal direction and an optical characteristic which is oblique to the oblique direction, for example, a 60° polar angle direction. a cellulose film) and an optically anisotropic layer, and actively use such optical characteristics of the transparent support and the optically anisotropic layer for optical compensation to simultaneously improve left and right black light leakage and left and right color shifts . Therefore, as long as the principle is utilized, the scope of the present invention is not limited to the display mode of the liquid crystal layer, and the liquid crystal display device having the liquid crystal layer of any display mode such as the VA mode, the IPS mode, or the ECB mode and the TN mode be usable. Further, the liquid crystal display device of the present invention is not limited to the configuration shown in Fig. 1, and may include other members. For example, a color filter may be disposed between the liquid crystal cell and the polarizing film. Further, when it is used in a transmissive type, a backlight using a cold cathode or a hot cathode fluorescent tube, or a light emitting diode, a field emission element, or an electroluminescence element as a light source may be disposed on the back surface. Further, the "liquid crystal display device" of the present invention includes an image direct view type, an image projection type or a light modulation type. The present invention can be particularly effectively applied to -2 5 - 200813500 active matrix liquid crystal using a three-terminal or two-terminal semiconductor element such as TFT (Thin Film Transistor) or MIM (Metal Insulator Metal) The way the device is displayed. Of course, it can be effectively applied to a passive matrix type liquid crystal display device typified by an STN (Super Torsional Nematic) type called time division driving. (optical compensation film)

The optical compensation film of the present invention has at least a transparent support. Further, an optically anisotropic layer may be formed on the transparent support as needed. Hereinafter, each member constituting the optical compensation film of the present invention will be described in detail. <Transparent Support> The transparent support for constituting the optical compensation film of the present invention is not particularly limited as long as it is a transparent film, and may be appropriately selected depending on the purpose, but may be an extended polymer film. Further, it may be used as a coating type polymer layer or a polymer film. The polymer film material is generally a synthetic polymer. The "synthetic polymer" includes, for example, polycarbonate, polyfluorene, polyether maple, polyacrylate, polymethacrylate, Norbornene resin, cellulose ester and the like. The method of controlling the Re of the transparent support, assuming that the glass transition temperature of the transparent support is (Tg), it is preferred to extend the transparent support at a temperature of (Tg+15) to (Tg + 100) °C. The method of body. In the step of extending the transparent support, the shrinking step of shrinking may also be included in the present invention, and the reverse wavelength dispersion characteristic of Re and the forward wavelength dispersion characteristic of Rth which are not easily achieved by one film are This is achieved by adjusting the division of labor as described below -26-200813500. That is, the reverse wavelength dispersion characteristic of Re is mainly carried out by changing the stretching conditions of the film, and the forward wavelength dispersion characteristic of Rth is mainly carried out by adding an additive (Rth rising agent). At this time, the results of the known extension can be expressed in the orientation degree P (the alignment order parameter; the Peifeng Pavilion, the liquid crystal dictionary page 175, the 1 989 12/5 first edition) described in the present invention. Fig. 7A shows the dispersion of the wavelength in the case where the additive was not extended and only the additive was added, and Fig. 7B shows the dispersion of the wavelength when the case was extended without adding the additive. As shown in Figures 7A and 7B, neither of them can achieve the reverse dispersion characteristics of Re and the forward dispersion characteristics of Rth. In contrast to the above, the 7Cth graph shows the wavelength dispersion of the case where the extension is carried out and the additive is added. As shown in Fig. 7C, if a reverse wavelength dispersion characteristic of Re and a forward wavelength dispersion characteristic of Rth are to be achieved in one film, it is apparent that these two conditions (extension and addition of an Rth rising agent) are simultaneously required.

The transparent support for constituting the optical compensation film of the present invention is preferably formed by stretching in a high temperature region to produce Re at each wavelength. The mechanism is as follows, taking the best example of deuterated cellulose as an example. The deuterated cellulose is formed by a main chain composed of a glucopyranose ring and a side chain composed of a fluorenyl group. When the film made of deuterated cellulose is stretched, Re will appear in the direction in which the polymer main chain extends.

As a result of intensive investigation, the inventors of the present invention found that when extending at a very high temperature such as 1 75 ° C -27-200813500 (the Tg of the deuterated cellulose used is 148 ° C), The Re at 45 0 nm will decrease, and the Re at 65 0 nm will rise.

This is caused by a significant increase in the alignment of the deuterated cellulose due to the elongation in the high temperature region under the conditions described above. The parameter representing the orientation of deuterated cellulose is the degree of orientation P calculated by X-ray diffraction measurement. The X-ray diffraction measurement uses RAPID R-AXIS manufactured by Rigaku Corp., and the X-ray source uses a CuKct line to generate X-rays at 40 kV-36 mA. The collimating tube was 0.8 mm 0, and the deuterated cellulose film as a sample was fixed by a transmission sample stage. The measurement was carried out under the conditions of 22 ° C and 60% RH. The degree of alignment P of the deuterated cellulose defined by the following formula (A) from the detected x-ray pattern is preferably from 〇. 5 to 0.30, more preferably from 0. 06 to 0.30, and particularly preferably from 〇. 〇 8 to 0.30. . In addition, the upper limit of the degree of alignment is 1.0. Ρ = &lt; 3 cos2p - 1 &gt; /2 Equation (A ) However, &lt;cos2p&gt; =J ( 〇,π) cos2pi ( β) ( 〇,π) I ( β ) si η β d β ο In the above formula, the angle formed by the incident surface of the X-ray incident on the β-ray and the direction in the plane of the transparent support (deuterated cellulose film) is I in the X-ray diffraction pattern measured at the angle β. = 8. Diffraction intensity. In addition, the cellulose-deposited film after the high-temperature extension exhibits a peak of X-ray diffraction which may be derived from crystallization, and thus the crystallization of the cellulose film is effective in expressing the desired Re. . If it is desired to improve the color shift of the liquid crystal display device, it is also important to control Rth -28-200813500. In the present invention, it is preferred to use an Rth rising agent for selectively controlling Rth. The Rth rising agent is preferably a compound which selectively exhibits Rth to Re in a transparent support. Specifically, when the transparent support is uniaxially stretched at 16 (TC, 1 15% fixed end, it is preferable that the difference between Rth 値 before and after the addition/Re before and after the addition is 5 or more, and more preferably 8 or more. And further preferably 10 or more.

The optical compensation film of the present invention can control Rth by adding an Rth rising agent and an extending step when manufacturing the transparent support. If you want to achieve the desired Rth値, you need to control the cohesive state of the additives in the transparent support. The measure for controlling the state of aggregation of the additive in the transparent support is effective to control the drying speed in the drying step after casting the polymer solution of the raw material of the transparent support on the belt. In the drying step, the average drying speed of the transparent support in the range of 10 to 100% by mass in the drying step is preferably at least Φ 1.2% by mass/minute, more preferably 1.4% by mass/minute. the above. The Rth rising agent in the transparent support dried by using this condition has a small aggregation size, and the desired Rth can be achieved while maintaining the transparency of the transparent support. The range of Re (550) for the transparent support constituting the optical compensation film of the present invention is preferably from 10 to 100 nm, more preferably from 10 to 90 nm, and still more preferably from 20 to 80 nm. Further, the Rth (wo) of the transparent support for constituting the optical compensation film of the present invention is preferably in the range of 100 to 200 nm, more preferably 1 10 to -29 to 2008 13500 200.

Good 110 〇 under 1.40

The next 0.99 tim, and further preferably 120 to 200 nm. The range of the following formula for the transparent support for constituting the optical compensation film of the present invention is preferably from 0.40 to 0.95, more preferably from 0.55 to 0.8, and more preferably from 55 to 0.75. Further, the range of the transparent support (4) for constituting the optical compensation film of the present invention is preferably from 1.02 to 1.50, more preferably from 1.10 to Å, and still more preferably from 1.1 Å to 1.42. 0.5 &lt;Re(45〇&gt; /Recsso) &lt;1.0 Formula (3) 1.0 &lt; Re(63〇) /Re(55〇) &lt;1.5 In the formula (4), the absolute Re of Re is preferably The range is controlled depending on the manner of each liquid crystal layer. For example, in the case of the OCB and VA modes, it is preferably 20 to nm, more preferably 20 to 100 nm, and still more preferably 35 to 90 nm. Further, regarding the transparent support for constituting the optical compensation film of the present invention The range of (5) is preferably from 1.01 to 1.50, more preferably from 1.02 to 1, and still more preferably from 1.05 to 1.30. Further, the range of the transparent support (6) for constituting the optical compensation film of the present invention is preferably from 0.60 to 1.00, more preferably from 0.65 to Å, and still more preferably from 0.75 to 0.97. 1.0 &lt; ^ Rth( 450) /Rth( 550) &lt;1.5 Formula ( 5 ) 0.5 &lt; ^ Rth( 630) /Rth( 550) &lt; 1.0 Formula ( 6) In the ability, in addition, the transparent support body as a whole The hysteresis (Rth) in the thickness direction differs depending on the form of the liquid crystal layer, which is preferably used to cancel the hysteresis of the liquid crystal layer in the thickness direction at the time of black display. -30- 200813500 For example, a liquid crystal cell used in an OCB mode (for example, an OCB mode liquid crystal cell having a liquid crystal layer having a product of a thickness d (μιη) and a refractive index anisotropy An Δη · ^ of 0.2 to 1.5 μm) In the case of optical compensation, it is preferably from 70 to 40 nm, more preferably from 1 to 400 nm, and even more preferably from 130 to 200 nm.

A raw material for use as a transparent support of the support material of the present invention (hereinafter also referred to as "deuterated cellulose (film)") can be used as a conventional raw material (see, for example, the Invention Association Open Technical Report 200). Bu 1 74 5) In addition, the synthesis of deuterated cellulose can also be carried out by a known method (see, for example, Odori and others, "Wood Chemistry", pp. 180-190 (Kyoritsu Publishing, 196)). The average degree of polymerization of the deuterated cellulose is preferably from 200 to 700, more preferably from 250 to 500, and still more preferably from 250 to 350. Further, the cellulose ester used in the present invention preferably has a narrow distribution of molecular weight distribution of Mw/Mn (Mw-based mass average molecular weight, Μη coefficient average molecular weight) measured by gel permeation chromatography. The specific Mw/Mn is preferably from 1.5 to 5.0, more preferably from 2.0 to 4.5, and still more preferably from 3.0 to 4.0. The mercapto group of the cellulose-degraded cellulose film of the present invention is not particularly limited, but an ethyl fluorenyl group, a propyl fluorenyl group, and particularly preferably an ethyl fluorenyl group are preferably used. Further, the degree of substitution of the entire fluorenyl group is preferably from 2.7 to 3.0, more preferably from 2.8 to 2.95. Further, the degree of substitution of the thiol group in the present embodiment is calculated based on ASTM (-31-200813500 AMERICAN SOCIETY FOR TESTING AND MATERIALS) D 8 17 . The thiol is preferably an ethyl ketone group. When a cellulose acetate having a thiol group is used, the degree of acetylation is preferably from 57.0 to 62.5%, more preferably from 58.0 to 62.0. %. If the degree of acetylation is within this range, it will not cause the Re to be larger than the desired enthalpy due to the transport tension of the flow delay' and the in-plane unevenness is small, due to the delay of temperature and humidity. There are also few. In particular, a thiol group having 2 or more carbon atoms is substituted for the hydroxyl group of the glucose unit of the cellulose, and it is assumed that the degree of substitution of the hydroxyl group at the 2-position of the glucose unit with the thiol group is When the degree of substitution of the hydroxyl group at the DS2 and the 3 position is D S3 and the degree of substitution of the 6-position hydroxyl group with a thiol group is DS 6 , if the formula (I ) and the formula (II ) shown below are satisfied, The change in Re値 due to temperature and humidity will be smaller, so it is better: 2.0SDS2 + DS3 + DS6S3.0 (I); DS6/(DS2 + DS3+DS6) 20.315 (II) 〇

<Extension Method> The cellulose film of the present invention exhibits its function by being extended as described above. Hereinafter, an extension method suitable for the present invention will be specifically described. The cellulose-deposited film of the present invention is preferably applied to a polarizing plate and is preferably extended in the width direction. Japanese Patent Laid-Open No. Hei. No. Hei. No. Hei. No. Hei. No. Hei. No. Hei. No. Hei. Japanese Laid-Open Patent Publication No. 4-2983 1 0, Japanese Laid-Open Patent Publication No. Hei. No. Hei. No. Hei. Further, the extension of the cellulose-deposited film of the present invention is carried out under the conditions of 155 to 25 (TC) of +5 to +100 ° C of Tg (150 ° C) of the film as described above. The extension of the cellulose film can also be either uniaxial or biaxial.

Further, the cellulose fluorite film of the present invention can be extended by treatment in a dry state, and is particularly effective when the solvent remains. For example, if the conveying roller speed of the cellulose fluorite film is adjusted so that the winding speed of the cellulose fluorite film is faster than the peeling speed of the cellulose fluorite film, the cellulose fluorite film can be extended. Further, by maintaining the width of the cellulose-deposited film on one side with a tenter and transporting it while slowly expanding the width of the tenter, the cellulose-fibrin film can be stretched. Further, after the deuterated cellulose film is dried, it is extended by using an extension machine (preferably, a uniaxial extension using a long stretcher). The stretching ratio of the cellulose-deposited film of the present invention (ratio of the portion after the extension of the original length) is preferably from 0.5 to 300%, more preferably from 1 to 200%, and still more preferably from 1 to An extension of 1〇〇%. The cellulose-deposited film of the present invention is preferably produced by a film forming step of performing a solution casting method stepwise or continuously, and an extending step of extending the film by the film, and the stretching ratio is preferably 1.25. More than twice, less than 1. 8 times. Alternatively, the step of extending may be carried out in one piece or in multiple stages. When the multi-stage method is carried out, the product of the respective stretching ratios may be within the range (1.2 times or more, 1.8 times or less) as described in -33-200813500. Further, the stretching speed is preferably from 5 to 1,000%/min, more preferably from 10 to 500%/min. Further, the extending step preferably uses a heat roller and/or a radiant heat source (IR heater or the like) and warm air. Alternatively, a thermostatic bath can be provided to increase temperature uniformity. When the uniaxial stretching is carried out by the roll extension, the ratio L/W of the ratio of the distance between the rolls (L) to the width (W) of the protective film is preferably from 2.0 to 5.0.

It is preferred to further set up a preheating step before the stretching step, and a heat treatment may also be applied after the stretching step. The heat treatment temperature is preferably at a temperature between a temperature 20 ° C lower than the glass transition temperature (Tg) of the cellulose acetate film until a temperature higher than the glass transition temperature (Tg) by 10 ° C. And the heat treatment time is preferably from 1 to 3 minutes. Alternatively, the heating method may be regional heating, or localized heating using an infrared heater, or both ends of the cellulose acetate film may be cut during or at the end of the heating step. Further, the cutting chips generated at this time are preferably recovered and reused as a raw material. In the case of the tenter, it is disclosed in Japanese Laid-Open Patent Publication No. Hei. No. Hei. No. Hei. Method, blown angle, wind speed distribution, wind speed, air volume, temperature difference, air volume difference, up and down air volume ratio, and use of high specific heat drying gas to ensure the speed of the solution casting method or to prevent the width of the substrate from being enlarged Such techniques for reducing the quality of planarity and the like can also be employed in the present invention. In addition, in Japanese Laid-Open Patent Publication No. Hei. No. Hei. No. Hei. No. Hei. No. Hei. No. Hei. No. Hei. No. Hei. No. Hei. No. Hei. No. Hei. No. Hei. No. Hei. No. Hei. No. Hei. A technique in which a temperature gradient is set in the width direction of the film to perform heat treatment, and the technique can also be applied to the heat treatment step as described above. Japanese Laid-Open Patent Publication No. 4-204503 discloses a technique for setting a solvent content of a film to prevent unevenness, and to extend the solvent to a solid content of 2 to 10%. This technique can also be employed in the present invention.

In Japanese Laid-Open Patent Publication No. 2002-248680, it is disclosed that in order to suppress the curl specified by the film-clamping width, the width DS of the tenter film is clamped (33/(log extension) The rate xx volatiles)) is a technique in which stretching is carried out to suppress curling, so that film transport after the stretching step is easy to proceed, and the technique can also be employed in the present invention. In Japanese Laid-Open Patent Publication No. 2002-337224, it is disclosed that in order to coexist both the high-speed flexible film transport and the extension, the tenter transfer is converted into the first half and the second half is the diaphragm type. Techniques, this technique can also be employed in the present invention. In Japanese Laid-Open Patent Publication No. 2002-1879960, it is disclosed that a cellulose ester coating liquid is cast on a casting support body for the purpose of easily improving the viewing angle characteristics and improving the viewing angle, and then passing through the flow. The substrate (film) to be peeled off on the support is used, and the amount of the residual solvent in the substrate is 100% by mass or less, particularly in the range of 10 to 100% by mass, at least 1.0 to 4.0 times in one direction. Invention made of optical biaxiality-35-200813500 Further, this technique also discloses a more preferred embodiment in which the amount of residual solvent in the substrate is 100% by mass or less, particularly 10 to 100% by mass. The period of the range extends at least 1.0 to 4.0 times in one direction.

In addition, other extension methods of the technique also exemplify a method of imparting a circumferential speed difference to a plurality of rollers and longitudinally extending the circumferential speed difference therebetween; fixing the both ends of the substrate with a film or a pin and proceeding a method of expanding the spacing of the film or the pin to extend in the longitudinal direction; similarly, expanding in the lateral direction to extend in the lateral direction; or expanding in the longitudinal and lateral directions to extend in both the longitudinal and transverse directions; and combining the methods for use Wait. Further, it is disclosed that, in the case of the so-called tenter method, when the film portion is driven by the linear driving method, a smooth extension can be applied, and the risk of breakage or the like can be reduced, and therefore, the techniques are also preferable. It is used in the present invention. In the publication of Japanese Laid-Open Patent Publication No. 2003-0 1 493 3, it is disclosed that there is little occurrence of bleeding in the production of the additive, and there is no peeling phenomenon between the layers, and the sliding property is good and the transparency is excellent. The optical compensation film is prepared by preparing a coating liquid A containing a resin, an additive, and an organic solvent, and a coating liquid B containing a resin, an additive, and an organic solvent containing no additive or additive content less than the coating liquid A, and the coating liquid A is In the core layer, the coating liquid B is cast on the support in the state of the surface layer, and after evaporating the organic solvent until peeling off, the substrate is peeled off by the transparent support, and the residual solvent in the resin film at the time of extension is A technique of extending at least 1 · 1 to 1.3 times in a uniaxial direction in the range of 3 to 50% by mass. In addition, the technique also reveals a more preferred embodiment, preferably utilizing various measures as follows: the substrate is peeled off from the support, and at an extension temperature of -36 - 200813500 140 to 200 ° C, at least The uniaxial direction is extended to 3.0 times; the coating liquid A containing the resin and the organic solvent is prepared, and the coating liquid B containing the resin, the fine particles and the organic solvent is used, and the coating liquid A is used as the core layer, and the coating liquid B is in the surface layer state. And co-casting on the transparent support, and evaporating the organic solvent until peeling off, the substrate is peeled off from the transparent support, and the residual solvent in the resin film at the time of stretching is in the range of 3 to 50% by mass, at least Extending from 1.1 to 1.3 times in a single axial direction; then extending from 140 to 200 °C

Lower at least 1.1 to 3.0 times in a single axial direction; preparing a coating liquid A containing a resin, an organic solvent, and an additive, and a resin, an additive, and an organic solvent containing a coating agent A containing no additive or additive. The coating liquid B, and the coating liquid C containing the resin, the fine particles and the organic solvent, and the coating liquid A as the core layer, the coating liquid B as the surface layer, and the coating liquid C as the surface on the opposite side to the coating liquid B The layer is continuously cast on the support, and after evaporating the organic solvent until peeling off, the substrate is peeled off from the support, and the residual solvent in the resin film at the time of stretching is in the range of 3 to 50% by mass. Extending at least 1.1 to 1.3 times in a single axial direction; extending at a temperature in the range of 140 to 200 ° C, extending at least 1:1 to 3.0 times in a uniaxial direction; the amount of the additive in the coating liquid A is relative to the resin 1 to 30% by mass, the amount of the additive in the coating liquid B is 〇 to 5% by mass relative to the resin, and the additive is a plasticizer, a UV absorber or a hysteresis control agent; and the coating liquid A and the coating liquid B The organic solvent is contained in an amount of 50% by mass or more based on the total of the organic solvent. Methylene chloride or methyl acetate. These techniques can also be employed in the present invention. In Japanese Laid-Open Patent Publication No. 2003-014933, it is disclosed that the extension method is suitable for fixing the ends of the substrate with a film slit or a pin, and -37 - 200813500 enlarges the film or the needle in the lateral direction. A tenter is called a lateral stretcher that extends in the lateral direction. Further, in the publication, it is also disclosed that when it is intended to extend in the longitudinal direction or to contract it, the distance between the transport direction of the film bundle or the pin may be increased in the transport direction (longitudinal direction) by using a simultaneous biaxial stretching machine, or Shorten it to implement.

Further, in this publication, it is also disclosed that when the film portion is driven by the linear driving method, the stretching can be smoothly performed, and the risk of breakage or the like can be reduced, so that it is preferable to use a method of longitudinal stretching. A method of imparting a peripheral speed difference to a plurality of rolls while extending in the longitudinal direction by a roll peripheral speed difference therebetween. Further, in this publication, it is also disclosed that the extension methods can also be used in combination, for example, (longitudinal extension, lateral extension, longitudinal extension), or (longitudinal extension, longitudinal extension), etc., the extension step can be divided into two or more stages. Implementations, such techniques can also be employed with the present invention. In Japanese Laid-Open Patent Publication No. 2003-004374, a method for preventing foaming of a tenter-dried substrate, improving detachability, and preventing dust from flying is disclosed. In the drying apparatus, the width of the dryer is designed to be This technique can also be applied to the present invention, in which the width of the substrate is short so that the hot air of the dryer does not blow to both edges of the substrate. In Japanese Laid-Open Patent Publication No. 2003-0 1 9757, it is disclosed that a substrate for preventing the drying of the tenter is foamed, the detachment property is improved, and the dust is prevented from flying, and the wind is provided on the inner side of the both ends of the substrate. The technique of the plate so that the dry wind does not blow to the tenter holder can also be employed in the present invention. -38 - 200813500 In Japanese Laid-Open Patent Publication No. 2003-05-05749, it is disclosed that for the purpose of stable conveyance and drying, it is assumed that the thickness of both ends of the film to be held by the pin tenter is dried. X ( μιη ), when the average thickness after drying of the film product part is Τ (μιη ), it can meet the condition of 40^X^200 at TS 60; 40 + (at 60 &lt; TS120) Τ—60) The condition of X 0.2SXS 300; at 120 &lt; ,, the technique can meet the condition of 52 + ( Τ - 120 ) X 0 · 2 SX $ 4 0 0 , and the technique can also be applied to the present invention. .

In Japanese Laid-Open Patent Publication No. Hei 2- 1 825 654, it is disclosed that in the multi-stage tenter, wrinkles are not generated, and in the tenter apparatus, heating is provided in the dryer of the multi-stage tenter. The chamber and the cooling chamber are used to separately cool the left and right membrane-key strips, and the technique can also be applied to the present invention. In the Japanese Patent Laid-Open Publication No. Hei 9-0773.1 5, it is disclosed that in order to prevent breakage, wrinkles, and poor conveyance of the substrate, the density of the inner needle is increased with respect to the needle of the needle tenter. The technique of reducing the density of the outer needles is also a technique which can also be employed in the present invention. In the tenter of the present invention, in a tenter, in order to prevent foaming of the substrate itself or adhesion of the substrate to the holding device, the tenter drying device is blown out. The type cooler cools the two sides of the substrate to a lower temperature than the foaming temperature of the substrate, and simultaneously cools the needle before clamping the substrate to the gelation temperature of the coating liquid in the trough cooler. + 1 5 ° C or less technology, this technology can also be used in the present invention. In Japanese Laid-Open Patent Publication No. 2003-103350, the disclosure of the Japanese Patent Publication No. Hei-39-200813500 shows a method for preventing the pinion tenter from falling off and optimizing foreign matter in the pin tenter, cooling the inserted structure. The technique of a solution film forming method in which the surface temperature of the substrate in contact with the inserted structure is not so high as to exceed the gelation temperature of the substrate, the technique can also be applied to the present invention.

In Japanese Laid-Open Patent Publication No. Hei No. 1-07-0718, it is disclosed that the speed is reduced by the solution casting method, or the flatness of the width of the substrate is prevented from being increased by the tenter, and the quality is lowered. When the substrate is dried in the web, the wind speed is set to 〇·5 to 20 (40) m/s, the lateral temperature distribution is 10% or less, the substrate up-and-down air ratio is 0.2 to 1, and the dry gas ratio is 30 to 25. 0 J/Kmol technology. Further, regarding the drying in the tenter, preferred drying conditions according to the amount of residual solvent are disclosed. Specifically, it is disclosed that the amount of residual solvent in the substrate reaches 4% by mass after the substrate is peeled off via the support, and the blowing angle from the outlet is set to be in the range of 30 to 150° with respect to the film plane. And the wind speed distribution on the surface of the film in the direction in which the drying gas is blown out is based on the upper limit of the wind speed 値, and the difference between the upper limit 値 and the lower limit 设定 is set within 20% of the upper limit , to supply the dry gas. When the amount of the residual solvent in the substrate is 70% by mass or more and 130% by mass or less, the wind speed of the drying gas blown out by the blow dryer is 0.5 m/sec or more and 20 m on the surface of the substrate. When the amount of the residual solvent is less than 70% by mass and 4% by mass or less, the dry gas is blown at a wind speed of 0.5 m/sec or more and 40 m/sec or less at a wind speed of the dry gas. The temperature distribution of the drying gas in the width direction of the substrate is set to be within 10% of the upper limit 若 when the upper limit of the gas temperature is based on the upper limit 气体 of the gas temperature; in the range of -40-200813500 and the substrate Residual dissolution When the dose is 4% by mass or more and 200% by mass or less, the air volume ratio q of the dry gas blown from the outlet of the blow dryer of the substrate to be conveyed is set to 0.2 S q ^ 1 . Moreover, a preferred example discloses that the dry gas uses at least one gas and has an average specific heat of 31.0 J/Kvmol or more and 250 J/K.mol or less; and an organic liquid which is contained in a dry gas in a dry state at a normal temperature. The concentration of the compound is dried by a drying gas having a saturated vapor pressure of 50% or less, and the like can also be employed in the present invention.

In the publication of the TAC (cellulose triacetate) film, in order to prevent flatness or coating deterioration due to generation of a contaminant, it is disclosed in Japanese Laid-Open Patent Publication No. Hei. No. Hei. The film of the tenter is a built-in heating part technology. Moreover, the technique also discloses a more preferred embodiment for removing the contact portion generated between the film and the substrate during the release of the film from the tenter of the tenter until the substrate is held again. Foreign matter device; using a gas or liquid and a brush to remove foreign matter; the residual amount of the film or the contact of the pin with the substrate is 12% by mass or more and 50% by mass or less; and the film or the pin and the substrate The surface temperature of the contact portion is 60° or more, 200° or less (more preferably 80° or more, 120° or less), and the like. The technique can also be applied to the Japanese Patent Laid-Open Publication No. Hei No. Hei 01-090943. , in order to optimize the flatness, improve the quality caused by the breakage in the tenter, and improve the productivity. Regarding the tenter film, set the arbitrary transport length Lt ( m ) of the tenter, and the length. The film of the tenter of the same type as Lt-41 - 200813500 The ratio of the total length of the transport direction of the portion of the substrate to be held Ltt (m) Lr = Ltt / Lt is the invention of L. OSLrSl. Further, a preferred embodiment discloses a technique for holding a portion of a substrate to be arranged to have no gap from the width direction of the substrate, and the technique can also be applied to the present invention.

In the case of introducing a substrate to a tenter, it is disclosed that the flatness deterioration and the introduction instability caused by the bending of the substrate are optimized for the plastic film. The manufacturing apparatus has a technique of a substrate width direction bending suppressing device before the tenter inlet. Moreover, this technique also discloses a more preferred embodiment in which the bending suppression device is a rotating roller that rotates in a direction of 2 to 60° in an angle that expands in the width direction; has a suction device on the upper portion of the substrate; A blower or the like that can be blown from below the substrate can also be used in the present invention. In the method of TAC, the substrate which is peeled off via the support is used in the TAC manufacturing method, for the purpose of preventing the deterioration of the quality and the hindrance of the productivity. This technique can also be applied to the present invention for the technique of introducing into a tenter at a horizontal forming angle. In Japanese Laid-Open Patent Publication No. 2000-289903, a film having a stable physical property is disclosed, and when peeled off and the solvent content is 50 to 12% by mass, tension is applied to the width direction of the substrate. The conveying device for conveying one side has a substrate width detecting device and a substrate holding device, and two or more variable bending points, and detecting the width of the substrate by the detection signal by detecting the width of the substrate to change the position of the bending point. Techniques, the technique - 42-200813500 can also be employed in the present invention. In Japanese Laid-Open Patent Publication No. 2003-03-0393, it is disclosed that in order to improve the gripping property and prevent breakage of the substrate for a long period of time, to obtain a film excellent in quality, the tenter is adjacent to the inlet portion. On the left and right sides, a guide plate for preventing curling of the side edge portion of the substrate is disposed at least below and below the left and right edge portions of the substrate, and the opposite surface of the substrate of the guide plate is disposed on the substrate. The substrate contact resin portion and the substrate contact metal portion are formed in the direction.

Further, this technique also discloses a preferred embodiment in which the substrate contact resin portion on the substrate facing surface of the guide plate is disposed on the upstream side in the substrate transport direction, and the substrate contact metal portion is disposed on the downstream side. The step (including the inclination) between the resin-contacting resin portion of the guide plate and the substrate-contacting metal portion is within 5 μηη; the substrate contact-contacting resin portion of the guide plate and the substrate-contacting metal portion are The distance in the width direction of the substrate is 2 to 150 mm, respectively; the distance between the substrate contact resin portion of the guide plate and the substrate contact metal portion in the substrate transport direction of the substrate is 5 to 5, respectively. 1 20 mm; the resin portion for substrate contact of the guide plate is provided on the metal guide substrate by surface resin processing or resin coating; the resin portion for substrate contact of the guide plate is composed of a resin monomer; The side edge portion is disposed at a distance of 3 to 30 mm between the opposite surfaces of the substrate of the upper and lower guide plates; between the opposite sides of the substrate of the lower and lower guide plates at the left and right edge portions of the substrate Distance to substrate width The inner side is enlarged at a ratio of 2 mm or more per 1 mm width; the upper and lower guide plates are respectively 1 to 300 mm in length on the left and right side edges of the substrate, and the upper and lower sides are respectively Guide-43- 200813500 The plate system is staggered back and forth along the conveying direction of the substrate, and the upper and lower guide plates are offset from each other by 200 to + 200 mm; the opposite surface of the upper guide plate is composed only of resin or metal. The substrate for contacting the substrate of the guide plate is made of Teflon (registered trademark), and the metal portion for substrate contact is made of stainless steel; and the opposite surface of the substrate of the guide plate or the substrate provided thereon is in contact with The surface roughness of the metal portion for contacting the resin portion and/or the substrate is 3 μm or less. Further, it is also disclosed that a preferred example is to prevent occurrence of curling of the side edge portion of the substrate. The position of the upper and lower guide plates is preferably from the peeling side end portion of the support body to the tenter introduction portion, particularly Preferably, such techniques are provided adjacent to the entrance of the tenter, and such techniques are also applicable to the present invention.

In the publication of Japanese Laid-Open Patent Publication No. Hei No. Hei. No. Hei. No. Hei. No. Hei. No. 1 1 -04 827, a solvent for a substrate is removed after peeling to prevent cutting or unevenness of the substrate which is generated during drying in a tenter. When the content is from 50 to 12% by mass, it is extended and dried by a width extending device; and when the solvent content of the substrate is 10% by mass or less, a pressurizing device is applied from both sides of the substrate by 0.2 to 10 KPa. Pressure technology. Further, this technique also discloses a more preferred embodiment, that is, when the solvent content is 4% by mass or more, the tension is applied, or when the pressure is applied from both sides of the substrate (film), the nip roll is used. When pressure is applied, the number of sets of the nip rolls is preferably from about 1 to 8 sets, and the temperature at the time of pressurization is preferably from 100 to 200 ° C. This technique can also be employed in the present invention. In Japanese Laid-Open Patent Publication No. 2002-03 6266, a technique for producing a high-quality thin pleat having a thickness of 20 to 85 μm is disclosed. -44- 200813500

In a preferred embodiment, the difference between the tension applied to the substrate in the conveying direction before and after the tenter is set to be 8 N/mm 2 or less; after the peeling step, the pre-heating substrate is provided Thermal step: an "extension step" for extending the substrate using a tenter after the preheating step; for relaxing the substrate with only an amount less than the extension of the stretching step after the stretching step "Relieving step"; and the temperature T! in the preheating step and the stretching step as described above is set at (glass transition temperature Tg - 60) °C or higher, and the temperature T2 in the relaxation step is set at (h - 1 0) Below °C; and the elongation of the substrate in the stretching step is set at 〇 to 30% relative to the width of the substrate to be introduced before the stretching step, and the elongation of the substrate in the easing step In the case of the present invention, it is also disclosed in Japanese Laid-Open Patent Publication No. 2002-225054, which discloses a thinning and weight reduction of a dry film thickness of 10 to 60 μm. With superior moisture permeability and durability, After the peeling is performed until the amount of the residual solvent of the substrate reaches 1 〇 mass%, the both ends of the substrate are grasped by the film ,, and the drying shrinkage by the holding width is suppressed and/or extended in the width direction to form the following. The surface orientation S represented by the formula (III) is a film of 0.0008 to 0.0020 (in the following formula (III), the lanthanum refers to the refractive index in the direction in which the refractive index of the film surface is the largest, and Ny means that the yttrium is formed in the plane. The refractive index in the orthogonal direction, the refractive index of the film in the film thickness direction; the time from the casting until the peeling is set to 30 to 90 seconds; and the peeled substrate is oriented in the width direction and/or This technique can also be employed in the present invention by extending the length direction and the like. -45- 200813500 S = { ( Nx + Ny ) /2} - Nz Formula (III) Further, in Japanese Laid-Open Patent Publication No. 2002-341 1 44, a method for suppressing optical unevenness is disclosed. The mass concentration of the retardation enhancer is a solution film forming method having an extension step of a higher optical distribution as it is closer to the center in the film width direction, and this technique can also be employed in the present invention.

In Japanese Laid-Open Patent Publication No. 2003-071863, it is disclosed that, in order to produce a film which does not cause turbidity, the stretching ratio in the width direction is preferably from 0 to 1% by weight, and when used as a protective film for a polarizing plate, More preferably 5 to 20%, and most preferably 8 to 15%. On the other hand, the publication discloses that when used as a retardation film (optical compensation film), it is more preferably from 1 to 40%, and most preferably from 20 to 30%, and R can be controlled by the stretching ratio, if At a high stretching ratio, the film system produced has superior planarity and is therefore preferred. Further, it is disclosed that the amount of residual solvent of the film when the tenter is applied is preferably from 20 to 100% by mass at the start of tentering, and it is preferred that the residual solvent amount of the film is less than 10% by mass until the side is stretched. It is dry, and more preferably 5% by mass or less. Further, it is also revealed that the drying temperature at the time of applying the tenter is preferably from 30 to 150. (3, more preferably 50 to 120 ° 〇, and most preferably 70 to 100 ° C, if low drying temperature is used, 'ultraviolet absorbing agent or plasticizer, etc., less volatile, can reduce process pollution' but if high At the drying temperature, it has a superior planarity of the film, and the technique can also be applied to the present invention. In addition, in the Japanese Patent Laid-Open Publication No. 2002-248639-46-200813500, In the method for producing a film in which the longitudinal and lateral dimensions are changed during storage under high temperature and high humidity, and the cellulose ester solution is cast on the support and continuously peeled off and dried, the drying shrinkage ratio can be matched. The drying technique is carried out in the form of the following formula (IV). 干燥S drying shrinkage (%) $〇· lx residual solvent amount (%) Formula (IV)

Moreover, this technique also reveals a more preferred embodiment in which the amount of residual solvent of the cellulose ester film after peeling is in the range of 40 to 1% by mass, and then the cellulose is grasped by a tenter. At least both sides of the ester film are reduced by at least 30% by mass of the residual solvent; and the amount of residual solvent in the tenter transfer inlet of the cellulose ester film after peeling is 40 to 1% by mass, and the residue remains. The amount of solvent is 4 to 20 mass. /〇; the tension of the cellulose ester film conveyed by the tenter is set to be increased by the tenter conveying inlet toward the outlet; and the conveying tension of the cellulose ester film by the tenter is in the width direction The tension of the cellulose ester film is approximately the same, and the like can also be employed in the present invention. In addition, Japanese Laid-Open Patent Publication No. 2000-239403 discloses that a film having a thin film thickness and excellent optical equivalence and planarity is used, and the residual solvent ratio X at the time of peeling is introduced. The relationship between the residual solvent rate Y at the tenter and the range of 0.3 X SYS 0.9 X is set to form a film, and this technique can also be applied to the present invention. Japanese Laid-Open Patent Publication No. 2002-286933 discloses a method for extending a film for casting a film, which comprises a method of stretching under heating conditions, and a method of stretching under a solvent-containing condition, If the stretching is carried out under heating conditions, it is preferred to transfer the temperature in the glass of the resin -47-

The temperature is extended below the temperature of 200813500 degrees, and when the film is cast by the impregnation solvent, the dried film is further impregnated with the solvent to extend the solvent, and the technique can also be applied to the present invention. invention. <Hysteresis-increasing agent> [Controlling the retardation-increasing agent of Rth] The transparent support for constituting the optical compensation film of the present invention has a hysteresis-increasing agent (Rth-increasing agent) for selectively controlling Rth. The Rth rising agent is a compound which can be selectively R to Re in a transparent support by adding it to a general ascending agent which can increase the Re and Rth of the transparent support by being added to the permeable body. For example, when the transparent support body 値 and Rth 制 obtained by the addition are subtracted from Re 値 and R 値 本 of the transparent support originally (the transparent support on the Rth is not added), the added compound Rth riser is added. The Rth which appears is a compound which is specific to Re with respect to Re. The Rth rising agent preferably has at least one maximum at 250 nm or more, more preferably at least one maximum at 250 or more and 360 nm or less, and still more preferably at least one absorption maximum at 300 or more and 355 nm or less. With this configuration, the difference in Rth 长 at 630 nm, 550 nm, and 450 nm is increased, so that the hue change can be suppressed. Further, the Rth ascending agent contained in the permeable member for constituting the optical compensation film of the present invention preferably has at least a di-aromatic ring extending to exhibit a hysteresis agent Absorbing and absorbing having each of the Wollamine-48-200813500 Further, the Rth rising agent contained in the transparent support for constituting the optical compensation film of the present invention is preferably selected from the following formula (η) ) to the compound represented by (V).

In the formula (II), R12 each independently represents an aromatic ring or a heterocyclic ring having a substituent in at least one of an ortho, meta and para position, and The X11 series each independently represents a single bond or NR13. Wherein R13 each independently represents a hydrogen atom, a substituted or unsubstituted alkyl group, an alkenyl group, an aryl group or a heterocyclic group. The aromatic ring represented by R12 is preferably a phenyl group or a naphthyl group, and particularly preferably φ is a phenyl group. The aromatic ring represented by Rl2 may have at least one substituent at any of the substitution positions. Examples of the "substituent" include halogen atom, hydroxyl group, cyano group, nitro group, carboxyl group, alkyl group, alkenyl group, aryl group, alkoxy group, anthraceneoxy group, aryloxy group, decyloxy group, alkoxy group. Alkylcarbonyl, alkenyloxycarbonyl, aryloxyindenyl, aminesulfonyl, alkyl-substituted amine sulfonyl, alkenyl-substituted amine sulfonate, aryl-substituted aminoxime, sulfonate Amidino, carbamate, transesteryl substituted megluminyl, alkenyl substituted aminomethyl, aryl substituted amidyl, anthranyl, alkylthio, alkylthio, aryl Sulfur-based, and sulfhydryl groups. -49· 200813500 The heterocyclic group represented by R12 is preferably aromatic. The heterocyclic ring having an aromatic character is generally an unsaturated heterocyclic ring, preferably a heterocyclic ring having the most double bonds. The heterocyclic ring is preferably a 5-membered ring, a 6-membered ring or a 7-membered ring, more preferably a 5-membered ring or a 6-membered ring, and most preferably a 6-membered ring. The hetero atom of the hetero ring is preferably a nitrogen atom, a sulfur atom or an oxygen atom, and particularly preferably a nitrogen atom. The aromatic heterocyclic ring is particularly preferably a pyridine ring (the heterocyclic group is a 2-pyridyl group or a 4-pyridyl group). The anthracene ring group may have a substituent. Examples of the substituent of the heterocyclic group are the same as the examples of the substituent of the aryl moiety as described above.

X11 is a heterocyclic group in the case of a single bond, and preferably a heterocyclic group having a free atomic valence in a nitrogen atom. The heterocyclic group having a free valence of a nitrogen atom is preferably a 5-membered ring, a 6-membered ring or a 7-membered ring, more preferably a 5-membered ring or a 6-membered ring, and most preferably a 5-membered ring. The heterocyclic group may also have a plurality of nitrogen atoms. Further, the heterocyclic group may have a hetero atom other than a nitrogen atom (e.g., fluorene, S). Hereinafter, an example of a heterocyclic group having a free valence of a nitrogen atom is exemplified.

• 50- 200813500 In the formula (II), the X11 is a single bond or NR13-, and R13 independently represents a hydrogen atom, a substituted or unsubstituted alkyl group, an alkenyl group, an aryl group or a heterocyclic group.

The alkyl group represented by R13 may be a cyclic alkyl group or a chain alkyl group, but a preferred chain alkyl group is more preferably a linear alkane than a branched chain alkyl group. base. The number of carbon atoms of the alkyl group is preferably from 1 to 30, more preferably from 1 to 20, still more preferably from 丨 to 1 Torr, still more preferably from 1 to 8' and most preferably from 1 to 6. The alkyl group may also have a substituent. Examples of the substituent include a halogen atom, an alkoxy group (e.g., methoxy group, ethoxy group), and an anthracene group (e.g., acryloxy group, methacryloxy group). The alkenyl group represented by R13, although it may be a cyclic alkenyl group or a chain alkenyl group, but preferably represents a chain alkenyl group, is more preferably a linear chain than a branched chain alkenyl group having a branch. Alkenyl. The number of carbon atoms of the alkenyl group is preferably from 2 to 30, more preferably from 2 to 20, still more preferably from 2 to 10, still more preferably from 2 to 8, and most preferably from 2 to 6. The alkenyl group may also have a substituent. Examples of the substituent are the same as the substituent of the alkyl group as described above. The aromatic ring group and the heterocyclic group represented by R13 are the same as the aromatic ring and the hetero ring represented by Ri2, and the preferred ranges are also the same. The aromatic ring group and the heterocyclic group may have a substituent, and the substituent examples are the same as those of the aromatic ring and the hetero ring of R12. Hereinafter, specific examples of the Rth ascending agent represented by the general formula (II) used in the present invention are shown. The plurality of Rs shown in the same structural formula in each of the exemplified compounds means the same group. The definition of R is shown at the same time as the specific instance number. -51- 200813500 Π-(1) ~ (66)

II-( 2) 3-ethoxycarbonylphenyl· II-( 3 ) 3-butoxyphenyl II-( 4 ) m-biphenyl II-( 5 ) 3-phenylphenylthio II- (6) 3-Chlorophenyl II-( 7 ) 3-benzylidenylphenyl II-( 8 ) 3-ethoxycarbonylphenyl φ II-( 9 ) 3-benzylideneoxyphenyl II - (10) 3-Phenoxycarbonylphenyl II·(1 1 ) 3-methoxyphenyl II-( 12 ) 3-anilinophenyl II-( 13 ) 3-isobutylguanidinophenyl - ( 14) 3-Phenoxycarbonylaminophenyl II-( 15 ) 3- ( 3-ethylureido)phenyl 11-(16) 3- (3,3-diethylureido)benzene Base II-( 17 ) 3-methylphenyl-52- 200813500 II-( 1 8 ) 3-phenoxyphenyl hydrazine-( 19) 3-hydroxyphenyl II-( 20) 4 -ethoxy iron Phenylphenyl-(21)4-butoxyphenyl-II-(22)p-biphenylyl-(23)4-phenylphenylthio-II-(24)4-chlorophenyl 11-( 25) 4 - Bentokilyl

II-( 26 ) 4-Ethyloxyphenyl II-( 27 ) 4-benzylideneoxyphenyl II-( 28 ) 4-phenoxycarbonylphenyl II-( 29 ) 4-methoxy Phenyl II-( 30) 4-anilinophenyl 11-(31) 4-isobutyldecylaminophenyl 11-(32) 4-phenoxycarbonylaminophenylphenyl-( 33 ) 4- ( 3 -ethylureido)phenyl II-( 34) 4-( 3,3-diethylureido)phenyl II-( 35 ) 4-methylphenylindole-( 36 ) 4-phenoxybenzene Base II-( 37 ) 4-hydroxyphenyl II-( 38 ) 3,4-diethoxycarbonylphenyl II-( 39 ) 3,4-dibutoxyphenyl II- ( 40 ) 3,4 -diphenylphenyl II-( 41 ) 3,4-diphenylphenylthio-53 - 200813500 11-(42)3 11-(43)3, 11-(44)3 11-(45) 3 11-(46)3 11-(47) 3 11-(48) 3 11-(49)3 φ 11-(50) 3 11-(51) 3 11-(52) 2 11-(53) 3 11 -(54) 3 11-(55) 3 11-(56)3 11-(57) 3

11-(59) 3 II-( 60 ) 3 11-(61) 3 11-(62)3 11-(63)3 11-(64) 3 11-(65) 3 4-dichlorophenyl 4- Dibenzoylphenyl 4-diethoxymethoxyphenyl 4-dibenylmethoxyphenyl 4-diphenoxycarbonylphenyl 4-dimethoxyphenyl 4-diphenylaminophenyl 4- dimethylphenyl 4-diphenoxyphenyl 4-dihydroxyphenylnaphthyl 4.5-triethoxycarbonylphenyl 4.5-tributoxyphenyl, 4,5-triphenylphenyl , 4,5-triphenylphenylthio, 4,5-trichlorophenyl, 4,5-triphenylmethylphenyl, 4,5-triethoxyoxyphenyl, 4,5-three Benzylmethoxyphenyl, 4,5-triphenyloxycarbonylphenyl, 4,5-trimethoxyphenyl, 4,5-triphenylaminophenyl, 4,5-trimethylphenyl, 4,5-triphenyloxyphenyl-54 - 200813500 II-( 66 ) 3,4,5-trihydroxyphenyl II -(67)~

11 - ( 6 7 )phenyl φ II· ( 68 ) 3-ethoxycarbonylphenyl II-( 69 ) 3 -butoxyphenyl II · ( 70 ) m-biphenyl II- ( 71 ) 3 -Phenylphenylthio II-( 72 ) 3-chlorophenyl II-( 73 ) 3-benzylidinylphenyl fluorene-( 74 ) 3-ethoxycarbonylphenyl II-( 75 ) 3-benzene Methoxyoxyphenyl Φ II-( 76 ) 3-phenoxycarbonylphenyl II-( 77 ) 3-methoxyphenyl II-( 78 ) 3-anilinophenyl hydrazone (79) 3- Isobutyl mercaptophenyl II-( 80) 3-phenoxycarbonylaminophenyl II-( 81 ) 3- ( 3-ethylureido)phenyl II- ( 82 ) 3- ( 3,3- Diethylureido)phenyl 11 -( 8 3 ) 3 -methylphenyl II-( 84 ) 3 -phenoxyphenyl-55 - 200813500 II- ( 85 ) 3-hydroxyphenyl II- ( 86 4_ethoxycarbonylphenyl II-( 87 ) 4-butoxyphenyl II · ( 88 ) p-biphenyl II-( 89 ) 4-phenylphenylthio II- ( 90 ) 4- Chlorophenyl II-( 91 ) 4-benzylidenephenyl II-( 92 ) 4-ethenyloxyphenyl

II-( 93 ) 4-Benzyloxyphenyl hydrazine-( 94) 4-phenoxycarbonylphenyl II-( 95 ) 4-methoxyphenyl II-( 96 ) 4-anilinylphenyl 11-(97) 4-Isobutyl decylaminophenyl 11-(98) 4-phenoxycarbonylaminophenyl hydrazine-( 99 ) 4-( 3-ethylureido)phenyl II- (100) 4-(3,3-Diethylureido)phenyl II-(101) 4-methylphenyl II-( 102 ) 4-phenoxyphenyl II-( 1 03 ) 4-hydroxyphenyl II - (104) 3,4-Diethoxycarbonylphenyl II-(105 ) 3,4-dibutoxyphenyl II-( 106 ) 3,4-diphenylphenyl II-( 107 ) 3 ,4-diphenylphenylthio II-(1 08 ) 3,4-dichlorophenyl-56 - 200813500 II-( 109 ) 3,4-diphenylmercaptophenyl 11-(110) 3, 4-diethoxyoxyphenyl II-(ll) 3,4-dibenylmethoxyphenyl II-(1 12 ) 3,4-diphenoxycarbonylphenyl II- (1 1 3 ) 3,4-dimethoxyphenyl II·(1 14 ) 3,4-diphenylaminophenyl 11-(115) 3,4-dimethylphenyl 11-(116) 3,4-diphenyl Oxyphenyl φ II-( 1 17 ) 3,4-dihydroxyphenyl II-( 1 18 ) 2-naphthyl 11-(119) 3,4,5-triethoxycarbonylphenyl II- ( 120) 3,4,5-tributyloxyphenyl II-( 121 ) 3,4,5- Phenylphenyl II-(122) 3,4,5-triphenylphenylthio II· ( 123 ) 3,4,5-trichlorophenyl 11-(124) 3,4,5-triphenyl Nonylphenyl Φ II-( 125 ) 3,4,5-triethoxymethoxyphenyl 11-(126) 3,4,5·trityloxyphenyl II-( 127) 3,4 ,5-triphenyloxycarbonylphenyl 11-(128) 3,4,5-trimethoxyphenyl II-( 129 ) 3,4,5-triphenylaminophenyl II· ( 130 ) 3,4 ,5-trimethylphenyl II-(131) 3,4,5-triphenyloxyphenyl II-(132) 3,4,5-trihydroxyphenyl-57 - 200813500 II -(133)~ (330)

II- ( 1 33 )phenyl

II-( 134 ) 4-butylphenyl II-(135) 4-(2-methoxy-2-methoxyethyl)phenyl II-( 136 ) 4- ( 5-decenyl)benzene Group II-( 137 ) p-biphenyl II-( 138 ) 4-ethoxycarbonylphenyl II-( 1 39 ) 4-butoxyphenyl fluorene-( 140 ) 4·methylphenyl II- ( 141 ) 4-chlorophenyl

II-( 142 ) 4-Phenylphenylthio II-( 143 ) 4-Benzylmercaptophenyl fluorene-( 144 ) 4-Ethyloxyphenyl II-(145) 4-benzylideneoxy Phenyl II-( 146) 4-phenoxycarbonylphenyl II-( 147 ) 4-methoxyphenyl II-( 148 ) 4-anilinophenyl II· ( 149) 4-isobutyl decyl phenyl Base II-( 150) 4-phenoxycarbonylaminophenyl •58- 200813500 II- ( 151 ) 4· ( 3-ethylureido)phenyl II- ( 152) 4· ( 3,3- 2 Ethylureido)phenyl II-( 153 ) 4-phenoxyphenyl II-( 154 ) 4-hydroxyphenyl II-( 155 ) 3-butylphenyl 11-(156) 3-(2- Methoxy-2-ethoxyethyl)phenyl II-( 157 ) 3- ( 5-decenyl)phenyl II-( 158 ) m-biphenyl

II-( 159 ) 3-ethoxycarbonylphenyl II-( 160) 3 -butoxyphenyl II-( 161 ) 3-methylphenyl II- ( 162 ) 3-chlorophenyl II- ( 163 3-phenylphenylthio II-( 164 ) 3-benzylidenylphenyl 11 - ( 1 6 5 ) 3 -ethoxymethoxyphenyl II-( 166 ) 3-benzylideneoxyphenyl II-( 167 ) 3-phenoxycarbonylphenyl II-( 168 ) 3-methoxyphenyl II-( 169 ) 3-anilinophenyl 11-(170) 3-isobutylguanidinophenyl 11 -(171) 3-phenoxycarbonylaminophenyl 11-(172) 3-(3-ethylureido)phenyl II-( 173)3-( 3,3-diethylureido)benzene Group II-( 174 ) 3-phenoxyphenyl-59 - 200813500 II- ( 175 ) 3-hydroxyphenyl 11-(17 6) 2 -butylphenyl II- ( 177) 2- ( 2- Oxy-2-ethoxyethyl)phenyl II-( 178) 2-( 5-indolyl)phenyl II-( 179 ) o-biphenyl II-( 180 ) 2-ethoxycarbonyl Phenyl II-( 181 ) 2-butoxyphenyl 11 - ( 1 8 2 ) 2 -methylphenyl Φ II- ( 183 ) 2-chlorophenyl II-( 184 ) 2-phenylphenylthio II-( 1 85 ) 2-Benzylmercaptophenyl II-( 1 86 ) 2-Ethyloxyphenyl II-( 1 87 ) 2-benzylideneoxyphenyl II-(188)2- Phenoxy Carbonylphenyl II-( 189 ) 2-methoxyphenyl II-( 190 ) 2-anilinylphenyl Φ II-( 191 ) 2-isobutyl decylaminophenyl II-( 192 ) 2-phenoxy Carbonylaminophenyl II-( 193 ) 2-( 3-ethylureido)phenyl II-( 194 ) 2-( 3,3-diethylureido)phenyl II-( 195 ) 2·benzene Oxyphenyl phenyl II-( 196 ) 2-hydroxyphenyl II-( 197 ) 3,4-dibutylphenyl II- ( 1 98 ) 3,4-di(2·methoxy·2-ethoxy Benzyl)phenyl-60- 200813500 II-( 199 ) 3,4-diphenylphenyl 11-( 200 ) 3,4-diethoxycarbonylphenyl 11-(201) 3,4-double Dodecyloxyphenyl II-( 202 ) 3,4-dimethylphenyl II-( 203 ) 3,4-dichlorophenyl 11-( 204 ) 3,4-diphenylmethylphenyl 11-( 205 ) 3,4-Diethoxymethoxyphenyl II-( 206 ) 3,4-dimethoxyphenyl

11-( 207 ) 3,4-di-N-methylaminophenyl 11-( 208 ) 3,4-diisobutyl decylaminophenyl 11-( 209 ) 3,4-diphenoxyphenyl II-( 210 ) 3,4-Dihydroxyphenyl II-( 21 1 ) 3,5-dibutylphenyl II- ( 212) 3,5 - I. (2-methoxy-2-ethane Base ethyl)benyl II-( 21 3 ) 3,5-diphenylphenyl 11-(214) 3,5-diethoxycarbonylphenyl 11-(215) 3,5-didodecane Oxyphenyl phenyl-( 216 ) 3,5-dimethylphenyl 11 - ( 2 1 7 ) 3,5-dichlorophenyl 11-(218) 3,5-diphenylmethylphenylphenyl 11 -(219) 3,5-diethoxymethoxyphenyl II-(220) 3,5-dimethoxyphenyl 11-(221) 3,5-di-N-methylaminophenyl 11 -( 222 ) 3,5-diisobutyl decylaminophenyl-61 _ 200813500 II- ( 223 ) 3,5 -diphenoxyphenyl II- ( 224 ) 3,5 · dihydroxyphenyl II- ( 225 ) 2,4-Dibutylphenyl 11-( 226 ) 2,4-di(2-methoxy-2-ethoxyethyl)phenyl II-( 227 ) 2,4-diphenyl Phenyl 11-( 228 ) 2,4-diethoxycarbonylphenyl II-( 229 ) 2,4-didododecyloxyphenyl 11-( 23 0 ) 2,4-dimethylphenyl 0 II- ( 23 1 ) 2,4·Dichlorophenyl 11-( 232 ) 2,4-diphenylmethylphenyl 11-( 23 3 ) 2,4-Diethoxyoxyphenyl II-( 234 ) 2,4-dimethoxyphenyl 11-( 23 5 ) 2,4-di-N-methylamino Phenyl 11-(236) 2,4·diisobutyrylamidophenyl II-( 23 7 ) 2,4-diphenoxyphenyl II-( 23 8 ) 2,4·dihydroxyphenyl Φ II - ( 23 9 ) 2,3 -Dibutylphenyl 11-(240 ) 2,3-bis(2-methoxy-2-ethoxyethyl)phenyl 11-(241) 2,3 - Diphenylphenyl 11-( 242 ) 2,3-diethoxycarbonylphenyl 11-( 243 ) 2,3-didodecyloxyphenyl fluorene-( 244 ) 2,3-dimethyl Phenyl II-( 245 ) 2,3-dichlorophenyl 11-( 246 ) 2,3-diphenylmercaptophenyl-62- 200813500 11-( 247 ) 2,3-diethoxy benzene Base 11 - ( 2 4 8 ) 2,3-dimethoxyphenyl 11-( 249 ) 2,3-di-N-methylaminophenyl 11-( 250 ) 2,3-diisobutyl decylamine Phenyl 11-(251) 2,3-diphenoxyphenyl II-( 252 ) 2,3 -dihydroxyphenyl II-( 25 3 ) 2,6-dibutylphenyl 11-( 254 2,6-bis(2-methoxy-2-ethoxyethyl)phenyl

II-( 25 5 ) 2,6-diphenylphenyl 11-( 256 ) 2,6-diethoxycarbonylphenyl 11-( 257 ) 2,6-didododecyloxyphenyl 11- (258) 2,6-Dimethylphenyl II-( 259 ) 2,6-dichlorophenyl II-( 260 ) 2,6-diphenylmethylphenylphenyl II-(261) 2,6- Diethoxymethoxyphenyl 11-( 262 ) 2,6-dimethoxyphenyl 11-( 263 ) 2,6-dimethylaminophenyl II-( 264 ) 2,6-diisobutyl fluorenyl Aminophenyl 11-( 265) 2,6 -diphenoxyphenyl II-( 266 ) 2,6-dihydroxyphenyl II-( 267 ) 3,4,5-tributylphenyl 11- (268) 3,4,5-tris(2-methoxy-2-ethoxyethyl)phenyl II-( 269 ) 3,4,5-triphenylphenyl 11-( 270 ) 3, 4,5-Triethoxycarbonylphenyl-63 - 200813500 II- ( 271) 3,4,5 -Dream eleven oxime oxyphenyl II- ( 272 ) 3,4,5-trimethylbenzene Group II-( 273 ) 3,4,5-trichlorophenyl 11-( 274 ) 3,4,5 -tritylmethylphenyl 11-( 275 ) 3,4,5 -triethoxycarbonyl Phenyl 11-( 276 ) 3,4,5-trimethoxyphenyl 11-( 277 ) 3,4,5 -tri-N-methylaminophenyl 11-( 27 8 ) 3,4,5 - triisobutyl mercaptophenyl

11-( 279 ) 3,4,5-triphenyloxyphenyl II-( 28 0 ) 3,4,5-trihydroxyphenyl II-( 28 1 ) 2,4,6-tributylphenyl II-( 2 82 ) 2,4,6·tris(2-methoxy-2-ethoxyethyl)phenyl II-( 283 ) 2,4,6-triphenylphenyl II-(28 2,4,6-Triethoxycarbonylphenyl 11-( 285 ) 2,4,6-nondodecyloxyphenyl II-( 28 6 ) 2,4,6-trimethylphenyl II-( 287 ) 2,4,6-trichlorophenyl 11-( 28 8 ) 2,4,6-tritylmethylphenyl 11-( 289 ) 2,4,6-triethoxycarbonyl Phenyl 11-( 290 ) 2,4,6-trimethoxyphenyl 11-(291) 2,4,6-tri-N-methylaminophenyl 11-( 292 ) 2,4,6- Triisobutylphosphonylphenyl II-( 293 ) 2,4,6-triphenyloxyphenyl 11-( 294 ) 2,4,6-trihydroxyphenyl-64- 200813500 II- ( 295 ) pentacene Phenyl II-( 296 ) pentachlorophenyl II-( 297 ) pentamethoxyphenyl 11-( 298 ) 6-N-methylamine sulfonyl-8-methoxy-2-naphthyl 11- ( 299 ) 5-N-Methylamine sulfonyl-2-naphthyl 11-( 300 ) 6-N-phenylamine sulfonyl-2-naphthyl 11-(301) 5-ethoxy-7 -N-methylamine sulfonyl-2-naphthyl II-( 302 ) 3-methoxy-2-naphthyl,

II-( 303 ) 1-ethoxy-2-naphthyl II-( 3 04 ) 6-N-phenylamine sulfonyl-8-methoxy-2-naphthyl II-( 3 0 5 ) 5 -Methoxy- 7-N-phenylaminesulfonyl-2-naphthyl II-( 3 06 ) 1 - ( 4-methylphenyl)-2-naphthyl 11-( 3 07 ) 6,8 -Bis-N-methylamine sulfonyl-2-naphthyl II-( 3 0 8 ) 6-N-2-acetoxyethylamine sulfonyl-8-methoxy-2-naphthyl II-( 3 09 ) 5-Ethyloxy-7-N-phenylaminesulfonyl-2-naphthyl 11-(310) 3-benzylideneoxy-2-naphthyl 11-(311) 5-Ethylamino-1-naphthyl II-( 3 12 ) 2-methoxy-1-naphthyl II-( 313 ) 4-phenoxy-1-naphthyl 11-(314) 5- N-Methylamine sulfonyl-1-naphthyl 11-(315) 3-N-methylaminecarbomethyl-4-hydroxy-1-naphthyl II-( 3 16) 5-methoxy-6 -N-ethylaminesulfonyl-1-naphthyl 11-(317) 7-tetradecyloxy-1-naphthalenyl 11-(318) 4-(4-methylphenoxy)-1- Naphthyl-6 5 - 200813500 11-(319) 6-N-Methylamine sulfonyl-1-naphthyl II-( 320 ) 3 ·Ν,Ν-dimethylamine-mercapto-4-methoxy 1-naphthyl 11-(321) 5·methoxy-6-fluorenyl-benzylaminesulfonyl-1-naphthyl 11-( 322 ) 3,6-di-N-phenylamine sulfonate Mercapto-1-naphthyl 11-( 3 23 )methyl II- ( 3 24) Ethyl II-( 325 ) butyl II-( 326 ) octyl φ II-( 3 27 ) dodecyl 11-( 328 ) 2-butoxy-2-ethoxyethyl II- ( 329) Benzyl II-( 33 0 ) 4-methoxybenzyl IK331)~(333)

II-( 33 1 )methyl II- ( 3 3 2 )phenyl II- ( 3 3 3 ) butyl -66- 200813500

1-(3 34) The compounds represented by the formula (ΠΙ) are described below. R9〇 or4

In the above formula (ΙΠ), R4, R5, R6, R7 and r9 each independently represent a hydrogen atom or a substituent. The substituent represented by each of R4, R5, R6, R7, R8 and R9: an alkyl group (preferably having 1 to 40 carbon atoms, more preferably 30 to 30 carbon atoms, particularly preferably 1 to 20 carbon atoms). An alkyl group such as methyl, isopropyl, tert-butyl, n-octyl, n-decyl, n-hexadecylpropyl, cyclopentyl, cyclohexyl, etc.; alkenyl (preferably) a carbon atom to 40, more preferably a carbon number of 2 to 30', particularly preferably an alkenyl group having 20 carbon atoms, such as a vinyl group, an allyl group, a 2-butenyl group, a 3-pentene group R8, and a number of 1 , an ethyl group, a number of 2 is 2 to alkenyl, etc. -67 - 200813500 ); an alkynyl group (preferably having 2 to 40 carbon atoms) more preferably 2 to 30 carbon atoms, particularly preferably An alkynyl group having 2 to 20 carbon atoms, such as propargyl group, 3-pentynyl group, etc.): an aryl group (preferably having 6 to 30 carbon atoms, more preferably 6 to 20 carbon atoms). Preferred are aryl groups having 6 to 12 carbon atoms, such as phenyl, p-methylphenyl, naphthyl, etc.; substituted or unsubstituted amine groups (preferably having a carbon number of 〇 to 40, More preferably, the number of carbon atoms is from 0 to 30, and particularly preferably from 〇 to 20 Amine group, for example, an unsubstituted amino group, a methylamino group, a dimethylamino group, a diethylamino group, an anilino group or the like.

The alkoxy group (preferably having 1 to 40' carbon atoms is more preferably a carbon number of 1 to 30, particularly preferably an alkoxy group having 1 to 20 carbon atoms, such as a methoxy group, an ethoxy group, or the like. Butoxy group, etc.; aryloxy group (preferably having 6 to 40 carbon atoms, more preferably 6 to 30 carbon atoms, particularly preferably an aryloxy group having 6 to 20 carbon atoms, such as phenoxyl) a group, an acid group (preferably having 1 to 40 carbon atoms, more preferably 1 to 30 carbon atoms), particularly preferably a fluorenyl group having 1 to 20 carbon atoms, for example Ethylene, benzhydryl, methionyl, trimethylethenyl, etc.): alkoxycarbonyl (preferably having 2 to 40 carbon atoms, more preferably 2 to 30 carbon atoms) An alkoxycarbonyl group having 2 to 20 carbon atoms, such as a methoxycarbonyl group or an ethoxy group, etc.; an aryloxycarbonyl group (preferably having 7 to 40 carbon atoms, more preferably a carbon atom) The number is 7 to 30, particularly preferably an aryloxycarbonyl group having a carbon number of 7 to 20, such as a phenoxycarbonyl group; and a decyloxy group (preferably having 2 to 40 carbon atoms), more preferably carbon. The number of atoms is 2 to 30, and particularly preferably 2 to 20 carbon atoms. Oxy, e.g. acetyl group, benzoyl group and the like). Amidino group (preferably having a carbon number of 2 to 40' is more preferably a carbon number • 68-200813500 is 2 to 30' is particularly preferably a fluorenyl group having 2 to 20 carbon atoms, such as acetylamine Alkoxycarbonylamino group (preferably having 2 to 40 carbon atoms, more preferably 2 to 30 carbon atoms, particularly preferably 2 to 20 carbon atoms) Alkoxycarbonylamino group, such as methoxycarbonylamino group, etc.)

An aryloxycarbonylamino group (preferably having 7 to 40 carbon atoms, more preferably 7 to 30 carbon atoms, particularly preferably an aryloxycarbonylamino group having 7 to 20 carbon atoms, such as benzene) An oxycarbonylamino group, etc.; a sulfonylamino group (preferably having 1 to 40 carbon atoms, more preferably 1 to 30 carbon atoms, particularly preferably a sulfonylamino group having 1 to 20 carbon atoms) , for example, a methanesulfonylamino group, a benzenesulfonylamino group, etc.): an amine sulfonyl group (preferably having a carbon number of 〇 to 40, more preferably a carbon number of 0 to 30, particularly preferably carbon) The number of atoms is from 〇 to 20, such as sulfonyl, methylamine sulfonyl, dimethylamine sulfonyl, phenylamine sulfonyl, etc.; The number of carbon atoms is from 1 to 40, more preferably from 1 to 30, particularly preferably from 1 to 20, for example, an unsubstituted aminomethyl group, and a methylamine group. Mercapto, diethylamine, phenylaminomethyl, and the like. An alkylthio group (preferably having 1 to 40 carbon atoms, more preferably 1 to 3 carbon atoms, particularly preferably 1 to 20 carbon atoms, such as phenylthio group, etc.) Preferably, the number of carbon atoms is from 1 to 40, more preferably from 1 to 30, particularly preferably from 1 to 20, such as methanesulfonate, toluenesulfonyl, etc.; a sulfonyl group (preferably having 1 to 40 carbon atoms, more preferably 1 to 30 carbon atoms, particularly preferably a sulfinyl group having 1 to 20 carbon atoms, such as sulfinyl group, benzene Sulfonic acid, etc.) · 'Pulse group (preferably having 1 to 40 carbon atoms, more preferably 1 to 30 carbon atoms) -69- 200813500

a ureido group having 1 to 20 carbon atoms, such as an unsubstituted ureido group, a methylureido group, a phenylureido group, etc.; a guanidinium phosphate group (preferably having 1 to 40 carbon atoms, more preferably The number of carbon atoms is from 1 to 30, particularly preferably from 1 to 20, and the guanidinium phosphate group, such as diethylphosphonium phosphinate, phenylphosphonium amide, etc.; hydroxy, thiol, halogen An atom (for example, a fluorine atom, a chlorine atom, a bromine atom, or an iodine atom); a cyano group, a sulfo group, a carboxyl group, a nitro group, a hydroxamic acid group, a sulfinic acid group, a hydrazinyl group, an anilino group, or an anthracene group; a cyclic group (preferably a heterocyclic group having 1 to 30 carbon atoms, more preferably 1 to 12), for example, a heterocyclic group having a hetero atom such as a nitrogen atom, an oxygen atom or a sulfur atom, such as an imidazolyl group or a pyridyl group. , quinolyl, furyl, piperidinyl, morpholinyl, benzoxazolyl, benzimidazolyl, benzothiazolyl, 1,3,5-triazinyl, etc.), decyl (more Preferably, the number of carbon atoms is from 3 to 40, more preferably from 3 to 30, particularly preferably from 3 to 24, and the number of carbon atoms is from 3 to 24, such as trimethyldecyl, triphenyldecyl, and the like. These substituents may be substituted for such substituents. Further, when the substituent has two or more, it may be the same or different. Also, if possible, they may be bonded to each other to form a ring. The substituent represented by each of R4, R5, R6, R7, R8 and R9 is preferably an alkyl group, an aryl group, a substituted or unsubstituted amino group, an alkoxy group, an alkylthio group or a halogen atom. Specific examples of the compound represented by the general formula (III) are as follows, but are not limited thereto. -70- 200813500

-71 - 200813500 m 5

ΙΠ - 7

The compound represented by the formula (IV) will be described below. -7 2 - 200813500 71 72

Q - Q - OH General formula (IV) In the above formula (IV), Q71 represents a nitrogen-containing aromatic heterocycle, and Q7 2 represents an aromatic ring. Further, in the formula (IV), Q71 represents a nitrogen-containing aromatic heterocyclic ring, and preferably a nitrogen-containing aromatic heterocyclic ring of 5 to 7 members, more preferably a nitrogen-containing aromatic heterocyclic ring of 5 to 6 members. ring. The nitrogen-containing aromatic heterocyclic ring is preferably, for example, an imidazole, a pyrazole, a triazole, a tetrazole, a thiazole, a B oxime, a selenium, a benzotriazole, a benzothiazepine, a benzo B oxime, a benzoselenium. Oxazole, thiadiazole, oxadiazole, naphthylthiazole, naphthoxazole, phthalimidazole, hydrazine, pyridine, pyrazole, pyrimidine, sorghum, triazepine, triterpene, tetraterpene, etc. The ring is more preferably a triazo trap and a nitrogen-containing aromatic heterocyclic ring of 5 members; specifically, preferably a 1,3,5-triazine trap, imidazole, pyrazole, triazole, tetrazole, thiazole, or evil Each of the rings of azole, benzotriazole, benzothiazole, benzoxazole, thia Φ diazole, oxadiazole, etc., particularly preferably a 1,3,5-triazole well ring and benzotriwaxane. The nitrogen-containing aromatic heterocyclic ring represented by Q71 may further have a substituent, and the substituent may be applied to the substituent τ as described later. Further, when the substituent has a plurality of substituents, each of the substituents may be condensed to form a ring. Q72 represents an aromatic ring. The aromatic ring system represented by Q72 may be an aromatic hydrocarbon ring or an aromatic heterocyclic ring. Also, these may be monocyclic or form a condensed ring with other rings. The aromatic hydrocarbon ring is preferably a monocyclic or bicyclic aromatic hydrocarbon ring having 6 to 30 carbon atoms (e.g., a benzene ring, a naphthalene ring, etc.), more preferably -73 - 200813500 is a carbon number of 6 to 20 The aromatic hydrocarbon ring, and more preferably an aromatic hydrocarbon ring having 6 to 12 carbon atoms, particularly preferably a benzene ring.

The aromatic heterocyclic ring is preferably an aromatic heterocyclic ring containing a nitrogen atom or a sulfur atom. Specific examples of the heterocyclic ring include, for example, thiophene, imidazole, pyrazole, pyridine, pyrazole, argon, triazole, triazine, hydrazine, carbazole, hydrazine, thiazoline, thiazole, thiadiazole, oxazolyl , oxazole, oxadiazole, quinoline, isoquinoline, sputum trap, nai D 疋, 嗤Π 琳 琳, 嗟哩 、, cinn〇iine, Π Π 、, acridine, morphine, Browning, tetrazole, benzimidazole, benzoxazole, benzothiazepine, benzotriazole, tetraterpene, and the like. The aromatic heterocyclic ring is preferably a pyridine, a triazine trap or a quinoline. The aromatic ring represented by Q7 2 is preferably an aromatic hydrocarbon ring, more preferably a naphthalene ring or a benzene ring. The Q72 group may have a substituent which is preferably a substituent τ as described below. The "substituent τ" includes, for example, an alkyl group (preferably having 1 to 20 carbon atoms, more preferably fluorene to 12, particularly preferably 1 to 8, such as methyl, ethyl, isopropyl, or tertiary). -butyl, n-octyl, n-decyl, n-hexadecyl, cyclopropyl, cyclopentyl, cyclohexyl, etc.; alkenyl (preferably having 2 to 20 carbon atoms, more preferably 2 to 12, particularly preferably 2 to 8, such as vinyl, allyl, 2-butenyl, 3-pentenyl, etc.): alkynyl group (preferably having 2 to 20 carbon atoms, more preferably It is 2 to 12, particularly preferably 2 to 8, such as propargyl, 3-pentynyl, etc.): an aryl group (preferably having 6 to 30 carbon atoms, more preferably 6 to 20 carbon atoms, particularly preferably 6) Up to 12, such as phenyl, biphenyl, naphthyl, etc.; amine group (preferably having a carbon number of from 〇 to 20, more preferably from 10 to 10, particularly preferably from 〇 to 6, such as an amine group, a methyl group) Amino, dimethylamino, diethylamino, diphenyl-74- 200813500

Methylamino group, etc.; alkoxy group (preferably having 1 to 20 carbon atoms, more preferably 1 to 12, particularly preferably 1 to 8, such as methoxy, ethoxy, butoxy, etc.) An aryloxy group (preferably having 6 to 20 carbon atoms, more preferably 6 to 16, particularly preferably 6 to 12, such as a phenoxy group, a 2-naphthyloxy group, etc.); a mercapto group (preferably ' The number of carbon atoms is from 1 to 20, more preferably from 1 to 16, particularly preferably from 1 to 12, such as ethyl hydrazino, benzhydryl, formazan, trimethylethenyl, etc.): alkoxy mineral base (preferably having 2 to 20 carbon atoms, more preferably 2 to 16, particularly preferably 2 to 12, such as a methoxycarbonyl group, an ethoxycarbonyl group, etc.); an aryloxycarbonyl group (preferably having a carbon number) It is 7 to 20, more preferably 7 to 16, particularly preferably 7 to 10, such as phenoxycarbonyl or the like; and an anthracene group (preferably having 2 to 20 carbon atoms, more preferably 2 to 16 carbon atoms). Preferably it is from 2 to 10, such as ethoxylated, benzamidine, etc.). Further, as the substituent T as described above, the other includes: an amidino group (preferably having 2 to 20 carbon atoms, more preferably 2 to 1, 6 or more preferably 2 to 1 Å, such as an acetamino group. , benzylamino group, etc.): alkoxycarbonylamino group (preferably having 2 to 20 carbon atoms, more preferably 2 to 16, particularly preferably 2 to 12, such as methoxycarbonylamino group, etc.) An aryloxycarbonylamino group (preferably having 7 to 20 carbon atoms, more preferably 7 to 16, particularly preferably 7 to 12, such as a phenoxycarbonylamino group, etc.): a sulfonamide group (preferably) The number of carbon atoms is from 1 to 20, more preferably from 1 to 16, particularly preferably from 1 to 12, such as a methylsulfonylamino group, a benzene-fluorenylamino group, etc.; an amine sulfonyl group (preferably a carbon atom) The number is from 〇 to 20, more preferably from 〇 to 16, particularly preferably from 0 to 12, such as amidoxime, methylamine sulfonyl, dimethylamine sulfonyl, phenylamine sulfonyl, etc.; Aminomethyl thiol (preferably having 1 to 20 carbon atoms, more preferably 1 to 16, particularly preferably 1 to 12, -7 5 - 200813500)

For example, an amine methyl sulfhydryl group, a methylamine methyl sulfonyl group, a diethylamine methyl fluorenyl group, a phenylamine methyl fluorenyl group, etc.; an alkylthio group (preferably having a carbon number of 1 to 20 Å) is more preferably 1 To 16, particularly preferably 1 to 12, such as methylthio, ethylthio, etc., arylthio (preferably having 6 to 20 carbon atoms, more preferably 6 to 16' is preferably &amp; 12, for example, a phenylthio group or the like; a sulfonyl group (preferably having 1 to 20 carbon atoms, more preferably 1 to 16, more preferably 1 to 12, such as a methylsulfonyl group, a tosylsulfonyl group or the like. Sulfhydryl group (preferably having 1 to 20 carbon atoms, more preferably 1 to 16, preferably 1 to 12, such as sulfinyl, phenylsulfinyl, etc.); (preferably having a carbon number of 1 to 20, more preferably 1 to 16, particularly preferably 1 to 12, such as a ureido group, a methylureido group, a phenylureido group, etc.); a guanidinium phosphate group (preferably) The number of carbon atoms is from 1 to 20, more preferably from 1 to 16, particularly preferably from 1 to 12, such as diethylphosphonium amide, phenylphosphonium amide or the like. Furthermore, the substituent T as described above includes: a hydroxyl group, a hydrogenthio group, a halogen atom (for example, a fluorine atom, a chlorine atom, a bromine atom, an iodine atom, etc.), a cyano group, a sulfo group, a carboxyl group, a nitro group, a hydroxamic acid group, a sulfinic acid group, a hydrazino group (fluorenyl group), an imido group; a heterocyclic group (preferably having a carbon number of from i to 30' is more preferably from 1 to 丨2, and a hetero atom is, for example, The nitrogen atom, the oxygen atom, the sulfur atom 'specifically, it includes, for example, an imidazolyl group, a pyridyl group, a quinolyl group, a furyl group, a piperidinyl group, a morpholinyl group, a benzoxazolyl group, a benzoimidazolyl group, a benzene group. And a thiazolyl group; a decyl group (preferably, a carbon number of 3 to 4 Å, more preferably 3 to 30, particularly preferably 3 to 24, such as a trimethyl decyl group, a triphenyl phenyl group, etc.) )Wait. Substituents such as β can be substituted. Further, when the substituent has two or more of -76 to 200813500, the same or different may be employed. Also, if possible, they may be bonded to each other to form a loop. Specific examples of the compound represented by the general formula (IV) are as follows, but the present invention is not limited to the specific examples shown below.

CIV-1)

(IV-9)

OCHa

-77 - 200813500

(IV-t 7) (IV-t 8)

HQ

CioHai 200813500

(IV-25)

(IV-26)

-CH2CH2CH2CH2-O

Νν—27)

-79 - 200813500

Compound No. R703 R7Crt IV - 29 -C H2C H(〇H)C H2OC4H9(-n) -ch3 IV-30 -C H2C H(〇H)C H2OC4H9(-n)-c2h5 IV-31 R703=R70i : -CH2CH(〇H)CH2OC4H9(—n) IV - 32 -ch(ch3)-co-o~c2h5 a c2h5 IV-33 R703=R701: -CH(C H3)-C 〇-C2H5 IV-34 -c2h5 -. 2H5 IV-35 -c H2C H(〇H)C H2OC4H9(-n) -ch(ch3)2 IV-36 - C H2C H(OH)C H2OC4H9(-n) - ch(ch3)-c2h5 IV-37 R703=R701 :-CH2CH(C2H5)-C4H9(-n) IV-38 ~C8H17(-n) -CgH"( - n) IV - 39 -.3H7(-n) -C3H7( - n) IV-40 -C3H7(-i) -c2h5 IV - 41 -〇4Η9( - n) - ch3 IV - 42 -C^Hgi-n) -c2H5 IV-43 -〇4Η9( - n) -〇4Η9(-n) IV -44 -ch2ch(ch3)2 -ch2ch(ch3)2 IV-45 - C6H13(-n) -c2h5 IV-46 -.8H17(-n) - ch3 IV-47 -ch2ch2ch(ch3)2 -ch2ch2ch(ch3 ) 2 IV-48 -CsHut-n) -ΟςΗ^ί-η) IV-49 - ch2-co-o-c2h5 - ch2-co-o-C2H5

The compounds represented by the formula (V) are explained below. -80- 200813500 Q&amp;1 is further 〆1 η However, in the general formula (V), Q81 and Q82 each independently represent an aromatic ring, and Χδ1 represents NR81 (the R81 represents a hydrogen atom or a substituent), representing An oxygen atom or a sulfur atom. An aromatic hydrocarbon ring represented by Q81 and Q82, preferably having a carbon number

a monocyclic or bicyclic aromatic hydrocarbon ring (for example, a benzene ring, a naphthalene ring, etc.) of 6 to 30, preferably an aromatic hydrocarbon ring having 6 to 20 carbon atoms, more preferably 6 carbon atoms. The aromatic hydrocarbon ring to 12 is particularly preferably a benzene ring.

The aromatic heterocyclic ring represented by Q81 and Q82 preferably contains at least one of an oxygen atom, a nitrogen atom or a sulfur atom. Specific examples of the aromatic heterocyclic ring include, for example, furan, abbreviated 'thiophene, imipenoid D, 卩 嗤, mouth ratio D 疋, Hit 哄, 哄 哄, three U sit, triazepine, π noise, 卩Sputum, oxime, thiazoline, thiazole, thiadiazole, oxazolyl, oxazole, oxadiazole, porphyrin, isoquinoline, hydrazine, naphthyridine, quinoxaline, quinazoline, hydrazine Each of the rings of porphyrin, rhodium, gamma steep, morphine, morphine, tetrazole, benzimidazole, benzoxazole, benzothiazole, benzotriazole, tetraterpene, and the like. The aromatic heterocyclic ring is preferably a pyridine ring, a triazide ring or a quinoline ring. The aromatic group represented by Q81 and Q82 is preferably an aromatic hydrocarbon ring, more preferably an aromatic hydrocarbon ring having 6 to 1 G carbon atoms, a substituted or unsubstituted benzene ring. The Q*1 and the substituent may have a substituent. The substituent is preferably a substituent T as described above, but the substituent does not contain a carboxylic acid or a sulfonic acid, and a tetra-200813500 ammonium salt. Further, if possible, the substituents may be bonded to each other to form a ring structure. X81 represents NR81 (wherein R81 represents a hydrogen atom or a substituent, and the substituent may be a substituent T as described above), an oxygen atom or a sulfur atom. More preferably, it is NR81 (preferably a mercapto group, a sulfonyl group, and the substituents may be substituted) or an oxygen atom, more preferably an oxygen atom. Specific examples of the compound represented by the general formula (V) are as follows, but the present invention is not limited to the specific examples shown below.

-82- 200813500

(V-9) O OH

(V-10) CsHsO (V-12)

OH O OH

OCiHs

OH O OH

OC4H9 (V-13) {r|CsHii〇^ (V-15) (4) CsHi3〇

OH O OH

OH O OH

〇〇5Ηιι(ϊ1&gt; OC^H^n)

(V-20)

CM$ (V-21) Η^ού

OH

0〇δΗΐ7{η) H3C0

O OH

OCa, Hu?{n) OC12H^(rt) -83- 200813500 (V-23)

-CH2CH2-〇

OH

(V-26)

HO

CV-27)

The Rth rising agent to be used in the present invention is preferably a compound represented by the general formula (II) and (ΙΠ). Further, a compound represented by the formula (IV) which is a mixture of the compounds represented by the general formulae (II) and (III) is also suitably used. The amount of the Rth-increasing agent (the compound represented by the formula (II) to (IV)-84-200813500) used in the present invention is preferably 2.0 to 30% by mass based on the base polymer of the film, respectively. More preferably, it is 2.5 to 20% by mass, and further preferably 2 to 5 to 10% by mass. When two or more types are used, the total amount thereof is preferably a condition that satisfies the range of the added amount. The Rth rising agent used in the present invention preferably exhibits liquid crystallinity. More preferably, liquid crystallinity (having thermotropic liquid crystallinity) is exhibited by heating, and liquid crystallinity is preferably exhibited in a temperature range of from 10 0 to 300 t:. The liquid crystal phase is preferably a columnar phase, a nematic phase, or a smectic phase, more preferably a columnar phase.

The compound of the formula (I) and the Rth rising agent as described above may be simultaneously added to the base polymer of the film, or may be added to the coating liquid after dissolution. In particular, it is preferable to use a static mixer or the like and to add the ultraviolet absorber solution to the coating liquid immediately before casting, since the spectral absorption characteristics can be easily adjusted. [Resistance Reducing Agent for Control Re] When it is desired to control the Re absolute enthalpy of the protective film (optical compensation film) of the present invention, it is preferred that the maximum absorption wavelength (Xmax) in the ultraviolet absorption spectrum of the solution is 25 nm. Short wavelength compounds are used as hysteresis risers. By using a compound as described above, the absolute enthalpy can be controlled without substantial changes in the Re-wavelength dependence of the visible region. Further, from the viewpoint of the function of the hysteresis-increasing agent, it is preferably a rod-like compound, and preferably has at least one aromatic ring, and more preferably has at least two aromatic rings. The rod-like compound preferably has a linear molecular structure. The so-called "linear molecular structure" means the most thermodynamically stable structure, and the molecular structure of the rod-like compound is linear. In addition, the most thermodynamically stable structure can be obtained by crystal structure analysis or molecular orbital calculation. For example, using a molecular orbital calculation software (such as WinMOPAC2000: manufactured by FUJITSU) for molecular orbital calculation, it is calculated that the heat of formation of a compound becomes the smallest molecular structure.

Here, the molecular structure is linear, which means that the thermodynamically most stable structure obtained by the calculation as described above has an angle of 140° or more. Further, the amount of the hysteresis-increasing agent added is preferably from 0.1 to 30% by mass, more preferably from 5% to 20% by mass, based on the total solid content of the polymer. [Humidity Dependence Improver] In the transparent support of the present invention, it is preferred to use a humidity dependency improver for reducing the change in Re and Rth caused by the change in the environmental humidity. The humidity-dependent improver is preferably a compound having at least a plurality of hydrogen-bonding groups in one molecule, and more preferably the hydrogen-bonding group is selected from a hydroxyl group, an amine group, a thiol group, and a carboxylic acid group. Particularly preferred is a group selected from a hydroxyl group and a carboxylic acid group. Further, it is preferred to have a plurality of different functional groups in one molecule. The humidity dependency improver as described above preferably has one or two aromatic rings, and preferably the number of the functional groups contained in one molecule divided by the molecular weight of the additive. Ten is calculated as 〇. 〇1 or above. These features are presumed to be bonded (hydrogen bonding) to the hydrogen bonding site of the deuterated cellulose resin by the humidity dependency modifier as described above to offset the degradation of the cellulose resin in the deuterated cellulose resin by -86-200813500. The alignment of water molecules and the hysteresis of changes in the charge distribution of deuterated cellulose due to the desorption of water molecules occur. Specific examples of the humidity dependency improver may be the compounds (A-1) to (A-17) shown below, but are not limited thereto.

COOH 0 COOH content A -2 000H -COOH HOOC HOOC i mouthwash A - 3 compound A - 4

COOH

COOH

COOH Compound A - 7 Compound A - 8

Ο /Η

VH

\/〇Η

HO has &quot;OH OH

Compound A - 1 3 Compound A - 1 4 Compound A - 1 5 Resin) A - 1 6

HO-C

HO—C 广 CH3 ch3 c—ch3 ss〇 Compound A-17 Further, the molecular weight of the humidity-dependent improver is preferably i 3 〇 or more and -87-200813500 5 00 or less. If the molecular weight is less than 13 Å, the volatility will be insufficient, and if it is 500 or more, the solubility in a solvent and the compatibility with the fluorinated cellulose resin will be deteriorated. Specific examples of the humidity-dependent improver which can satisfy the above-described conditions include the compounds (Α·1 8 ) to (Α-42 )' shown below, but are not limited thereto.

-88- 200813500

Compound A-3 1 Compound A — 3 2

C-OH compound A- 3 4

-89- 200813500

II

HO — C

C-OH 0 Compound A- 4 2

0 II <Application to Optical Compensation Film> Next, an optical compensation film for realizing optical compensation will be specifically described below. The optical compensation film of the present invention contributes to widening the viewing angle contrast of the liquid crystal display device φ ', particularly for the OCB mode, the VA mode liquid crystal display device, and reducing the color shift depending on the viewing angle. The optical compensation film of the present invention may be disposed between the polarizing plate on the viewer side and the liquid cell, between the polarizing plate on the back side and the liquid crystal cell, or both. For example, it may be incorporated as a separate member in the liquid crystal display device, or an optical property may be imparted to the protective film for protecting the polarizing film so that it can also function as a transparent film, and the polarizing plate can be used. The component is assembled inside the liquid crystal display device. -9 0 -

200813500 Further, the optical compensation film of the present invention and an optically different direction having an optical property (optical anisotropic layer (mixed alignment, optical compensation film of the present invention, at least one layer of a liquid crystal compound) The directional layer may be formed directly on the optical compensation film to form an alignment film, and then formed into a film, or may be formed on another substrate, and then used to form an optically anisotropic layer by using an adhesive or an adhesive. Optical complement: used to form the optical heterogeneous as described above, including rod-like liquid crystalline compounds and discs, also referred to as discotic liquid crystalline compounds. "Case", rod-like liquid crystalline compounds and discotic liquid crystals or Low-molecular-weight liquid crystals. In addition, the most contained compounds do not have to be low-molecular in the process of forming an optically anisotropic layer for a manufacturing system that exhibits an anisotropic layer, and no longer exhibits liquid crystallinity. The liquid crystalline compound can be suitably used for the optical hetero compound of the present invention: methine group, azo group, cyanamide , Cyanophenyl esters of alkanoic acid phenyl esters, cyanophenyl cyclohexanes, may also have a transparent support, at least two layers Fe. The three-layered layer) has an optically anisotropic layer depending on the liquid crystal method. The surface of the light compensation film, or on the light &gt; the alignment film. The liquid crystal compound layer on the material is printed on the optical compensation film. The liquid crystalline compound of the liquid crystalline compound-like liquid crystalline compound (in the lower-disc liquid crystal compound) of the tropism layer may have a high liquid crystallinity in the optically anisotropic layer. For example, when the liquid crystalline compound is used, This compound is subjected to cross-linking and directionality of "rod-type liquid crystal y (azomethine), oxygen, benzoate, ring 3 cyano substituted phenylpyrimidine-91 - 200813500, alkoxy Substituted phenylpyrimidines, phenyldioxanes, toluenes, and alkenylcyclohexylbenzonitriles. Further, the rod-like liquid crystalline compounds also include metal complexes. A liquid crystal polymer containing a rod-like liquid crystal compound in the repeating unit. In other words, the rod-like liquid crystal compound may be bonded to the (liquid crystal) polymer.

About the rod-like liquid crystal compound, it is disclosed in Chapter 4, Chapter 7, and Chapter 1, "Liquid Crystal Chemistry" (edited by the Chemical Society of Japan in 1994), and the Handbook of Liquid Crystal Devices (Japanese) Chapter 3 of the 1st 42nd Committee of the Academic Promotion Association. The birefringence of the rod-like liquid crystalline compound used in the present invention is preferably in the range of 0.001 to 0.7. The rod-like liquid crystalline compound as described above is preferably a polymerizable group in which the alignment state is fixed. The polymerizable group is preferably an unsaturated polymerizable group or an epoxy group, more preferably an unsaturated polymerizable group, and more preferably a stepwise unsaturated polymerizable group. [Disc liquid crystal compound] Discotic liquid crystal compound includes: Benzene disclosed in c. Destrade et al., Mol. Cryst., Vol. 71, pp. 1 1 1 (1981) Derivatives; published in C. Destrade et al., Mol·Cryst, Vol. 122, p. 141 (1 1985), Physics lett, A, vol. 78, p. 82 (1 990) Toluxene derivative; published in 硏· Kohne et al., Angew. Chem., Vol. 96, p. 70 (1 984) cyclohexane derivatives; and Rev.-92-200813500 J. Μ Lehn et al., J. Chem. C ommu η ·, p. 1794 (1985); J. Zhang et al., a study report, published in j. Am. Chem. Soc. Nitrogen crown ethers and phenylacetylene macrocycles, vol. 116, p. 2655 (1994). The discotic liquid crystalline compound as described above also includes a linear structure in which a linear thiol group, a oxo group or a substituted benzamidine group is used as a side chain of a mother nucleus for a core of a molecular center. And a compound which exhibits liquid crystallinity. The assembly of molecules or molecules is preferably a compound having rotational symmetry and capable of imparting a certain alignment.

As described above, when the optically anisotropic layer is formed of a liquid crystalline compound, the compound which is finally contained in the optically anisotropic layer does not need to exhibit liquid crystallinity, for example, a low molecular disk-like liquid crystalline compound. A compound which is contained in an optically anisotropic layer when the reaction is carried out by heat or light, and the reaction is carried out by heat or light, and the optically anisotropic layer or the like is formed by polymerization or crosslinking. It is also possible to lose liquid crystallinity. A preferred example of the dish-like liquid crystal compound is disclosed in Japanese Laid-Open Patent Publication No. 8-5-1206. Further, the polymerization of the discotic liquid crystalline compound is disclosed in Japanese Laid-Open Patent Publication No. Hei 8--27284. When it is desired to fix a discotic liquid crystalline compound by polymerization, it is necessary to bond a polymerizable group as a substituent to a disc-shaped core of a discotic liquid crystalline compound. However, when the polymerizable group is directly bonded to the disk-shaped core, it is difficult to maintain the alignment state during the polymerization reaction. Therefore, it is preferred to introduce a linking group between the disc-shaped core and the polymerizable group. -93- 200813500 In the optically anisotropic layer as described above, the rod-shaped compound or the molecular system of the discotic compound is fixed in an aligned state. The molecular symmetry axis of the liquid crystal compound has an angle of intersection of the orientation average direction of the optical compensation film side interface with the retardation axis in the plane of the optical compensation film of 45°. In addition, the term "substantially 45°" as used herein means an angle in the range of 45 ± 5°, and preferably 42 to 48°, more preferably 43 to 47 inches.

The molecular symmetry axis of the liquid crystal compound is aligned in the average direction, and can be generally adjusted by selecting a liquid crystal compound or an alignment film material or by selecting a rubbing treatment method. In the present invention, for example, in the case of manufacturing an optical compensation film for an OCB mode, an alignment film for forming an optical anisotropic layer is formed by a rubbing treatment, and the retardation is formed by the retardation of the optical compensation film. 45. In the direction of applying the rubbing treatment, the molecular symmetry axis of the liquid crystal compound can be formed at least at an orientation average direction of the cellulose fluorite film interface, which is an optically anisotropic layer of 45° with respect to the retardation axis of the bismuth cellulose film. For example, when the optical compensation film of the present invention has a long-length optical compensation film of the present invention in which the retardation axis is orthogonal to the longitudinal direction, it can be produced in a continuous manner. The plasticizer, the surfactant, and the polymerizable monomer which are used together with the liquid crystal compound are preferably compatible with the discotic liquid crystalline compound, and can impart a change in the tilt angle of the liquid crystal compound or prevent the alignment. More preferably, it is a polymerizable monomer (e.g., a compound having a B storage group, an ethyl sulfoxide group, a propyl decyl group, and a methacryl fluorenyl group). The amount of the compound to be added is generally in the range of from 1 to 50% by mass, preferably from 5 to 30% by mass based on the liquid crystal compound of from -94 to 200813500. Further, when a monomer having a reactive polymerizable functional group of 4 or more is used, the adhesion between the alignment film and the optically anisotropic layer can be improved. When a liquid crystalline compound is used as the liquid crystalline compound, it is preferred to use a polymer having a certain degree of compatibility with the liquid crystalline compound and imparting a change in the tilt angle to the liquid crystalline compound. Examples of the polymer include cellulose esters. The amount of the polymer to be added, Φ is preferably in the range of from 0.1 to 1% by mass, more preferably from 0.1 to 8% by mass, and still more preferably in the range of from 0.1 to 1% by mass based on the discotic liquid crystalline compound. • A range of 1 to 5 mass% so as not to hinder the alignment of the discotic liquid crystalline compound. The dish-like liquid crystal phase-solid phase transfer temperature of the discotic liquid crystal compound is preferably from 70 to 300 ° C, more preferably from 70 to 170 ° C.

In the present invention, the "other" optically anisotropic layer as described above has at least in-plane optical anisotropy. The in-plane retardation Re of the optically anisotropic layer is preferably from 3 to 300 nm, more preferably from 5 to 200 nm, and still more preferably from 10 to 1 Å nm. The retardation Rth in the thickness direction of the optically anisotropic layer is preferably from 20 to 400 nm, more preferably from 50 to 200 nm. Further, the thickness of the optically anisotropic layer is preferably from 0.1 to 20 μm, more preferably from 0.5 to 15 μm, and still more preferably from 1 to ΙΟμπι. [Alignment film] The optical compensation film of the present invention may have an alignment film between the support and the optically anisotropic layer. In addition, it is also possible to manufacture only the optical anisotropic layer -95-

An alignment film was used at 200813500, and then an optical difference was produced on the alignment film. Only the optical anisotropic layer was transferred onto the optical body of the present invention. In the present invention, the alignment film is preferably a layer which is crosslinked. The polymer used for the alignment film may also be its own polymer or a high score which can be crosslinked by using a crosslinking agent. The alignment film can be formed by reacting a polymer having a functional group with a polymer, by light, heat or pH, or by using a highly reactive agent between the polymers. A method of forming a binding group derived from a crosslinking agent and inter-crosslinking is introduced. The alignment film composed of the crosslinked polymer is formed by applying a coating liquid containing the above-mentioned polymer or polymer and the mixture, followed by heating or the like. In the rubbing step described below, it is preferred to suppress the dust flying of the alignment film in advance. If the ratio (Ma/Mb) of the amount of crosslinker (Mb) in the relative cloth liquid after cross-linking is subtracted from 1 (1 - (Ma/Mb) degree), the degree of crosslinking is higher. Preferably, it is 50 to 100%, more preferably, and still more preferably 75 to 100%. (Polarizing Plate) The polarizing plate of the present invention is composed of a polarizing film and a protective film for sandwiching a polarizing plate. It is preferable from the viewpoint of the transmittance at the time of formation. After the directional layer as described above, the compensation film (the supported polymer is constituted by any one of the crosslinkable molecules or the functional group guide molecule) Crosslinking of the compound to increase the degree of crosslinking of the mixture of the polymer on the support, so that the amount of the crosslinking agent added to the coating is defined as 65 to 100% of the crosslinking, the polarizing film First, a polarizing plate protective film is included in at least one side of the pair of protective films for a polarizing plate from a polarizing energy and an optical compensation film system-96-200813500. The manufacturing method of the polarizing plate can be, for example, cut into After the shape of the rectangle or the like is desired, the optical compensation film is bonded to the polarizing film, and may also be long and long. After the polarizing film of the size is bonded, it is cut into a desired shape. The polarizing plate of the present invention has not only a polarizing function but also an excellent optical compensation function, and can be easily matched with a liquid crystal display device. The implementation mode of the optical compensation film as the protective film of the polarizing film also contributes to the reduction in thickness of the liquid crystal display device.

<Cladding layer> The protective film for a polarizing plate of the present invention is particularly preferably used as a protective film disposed on the side of the polarizing film, and a coating layer (barrier layer) is preferably formed on the transparent substrate film. The thickness of the coating layer differs depending on the type of the coating layer. When the coating layer is set to have the most appropriate thickness, it is preferable to have a superior low moisture permeability without causing the occurrence of curling or the like. If the curl is too large, the polarizing plate step is followed, for example, in the subsequent step with the polarizing film, an obstacle is about to occur in the processing. Further, not only for the manufacturing step, if the polarizing plate itself has a curl residual, display unevenness or the like is caused to the LCD, which is not preferable. Therefore, it is preferable to control the film thickness of the coating layer to be within the optimum range if it is desired to cause curling or to suppress it to an extent that is practically not problematic. As for the lower limit of the film thickness, the preferred range is determined in accordance with the moisture permeability. The coating layer is composed of at least one layer, but a pattern of two or more layers is also possible. It is particularly preferable to use a mode in which two or more different coating layers are used simultaneously in the coating layer from the viewpoint of reducing moisture permeability. -97- 200813500 <Hylet permeability> Next, the moisture permeability is described in detail below. The measurement method of the moisture permeability can be applied to the "physical properties of polymers" (Phase Experiment 4, Co-published), pages 285 to 294: Determination of vapor permeation (mass method, thermometer method, vapor pressure method) According to the method of the adsorption amount method, the 7 〇mm 0 film sample of the present invention is conditioned for 24 hours under the conditions of 60 ° C and 95 % RH, and the quality difference before and after the humidity control is according to JIS Z-0208. To calculate the amount of water per unit area (g/m2). In this case, the operation of taking out and weighing the cup placed in the constant temperature and humidity device at appropriate intervals is repeated, and the mass increase per unit time is calculated by two consecutive weighings, and continues. It is carried out until it is within 5% and becomes constant. In addition, in order to eliminate the influence of moisture absorption of the sample, the empty cup which is not placed in the moisture absorbent is measured, and the moisture permeability is corrected. Further, in the case of the moisture permeability used in the present invention, when the protective layer having the layered inorganic compound dispersed in the polyvinyl alcohol, the ethylene-vinyl alcohol copolymer, and the coating layer of the resin layer is measured, Then, the moisture permeability from the side of the substrate layer is used. The moisture permeability of the commercially available cellulose acetate film measured by the measurement method is generally 80 μm thick, and the moisture permeability under the conditions as described above is 1,400 to 1,500 g/m 2 * Day. The upper limit of the moisture permeability of the polarizing plate protective film of the present invention is preferably 300 g/m2·day or less, more preferably 200 g/m2 · day or less. If the moisture permeability is higher than the upper limit 値, the effect of reducing display image unevenness is low in long-term use. The display image unevenness is a variation of the polarizing film of -98 - 200813500 inch due to changes in temperature or humidity. The lower limit is not particularly limited, but is preferably 20 g/m 2 ·day or more, and more preferably 30 g/m 2 · day or more from the viewpoint of productivity in processing of the polarizing plate. If it is within this range, it can suppress the polarizing film caused by the change of temperature or humidity during long-term use without deteriorating the performance (polarization, single-plate transmittance) of the polarizing plate. Display image non-uniformity caused by dimensional changes. Further, the constitution of the present invention can significantly reduce the display performance (^ viewing angle contrast/hue viewing angle dependence) of the liquid crystal display device depending on the use environment by using the protective film as described above. Although it has been mentioned above that the deuterated cellulose film is made to contain water, a hysteresis change in the charge distribution change of the deuterated cellulose due to the alignment in the deuterated cellulose resin and the desorption of water molecules will occur. . As a result, the liquid crystal display device generates a contrast and a hue which are particularly oblique in accordance with the environmental humidity. By using the protective film provided with the barrier layer as a protective film for the polarizer, it is possible to retard the water molecules and prevent the water molecules from penetrating into the deuterated cellulose disposed on the opposite side through the polarizing plate, thereby suppressing the corresponding The optical characteristics of the deuterated cellulose of humidity are changed, and as a result, the humidity dependence of the display characteristics of the liquid crystal display device is reduced. The hardened coating layer may be composed of a single layer or a plurality of layers, but is preferably a simple single layer in the production steps. In this case, the single layer refers to a coating layer formed of the same composition. When the composition after coating and drying is the same composition, it may be formed by coating several times. As for the so-called number layer, it is formed by several compositions having different compositions. <Adhesive> -99- 200813500 Although the adhesive for polarizing film and protective film is not particularly limited, it includes PVA resin (including ethyl acetonitrile, sulfonic acid group, sulfhydryl group, and base group). Such as a modified PVA) or an aqueous solution of a boron compound, etc., wherein 'pVA-based resin is preferred. The thickness of the subsequent layer is preferably from 〇.〇 i to ΙΟμηη after drying, particularly preferably from 0.05 to 5 μm. <Consistent Manufacturing Step of Polarizing Film and Transparent Protective Film> The polarizing plate used in the present invention may have a drying step of shrinking the film for stretching the polarizing film to reduce the volatile content, but it is preferably ^ After the transparent protective film is bonded to at least one side after drying or drying, there is a post-heating step. In the mode in which the transparent protective film also serves as an optically anisotropic layer support having a function of a transparent film, it is preferable to apply a transparent protective film on one surface and a transparent support having an optical anisotropic layer on the other surface. After the body, a post-heating step is performed. <Performance of polarizing plate>

The optical properties and durability (storage in the short-term and long-term) of the polarizing plate composed of the transparent protective film, the polarizer (polarizing film), and the transparent support relating to the present invention are preferably commercially available. Ultra-high contrast products (for example, HLC2-5618 manufactured by SANRITZ Co., Ltd.) are equal in performance. Specifically, the visible light transmittance is 42.5% or more, and the degree of polarization is {(Tp-Tc) / (Tp + Tc) } 1/2 g 0.9995 (however, Tp is parallel transmittance, and Tc is orthogonal transmittance) , when placed in 6 (TC, humidity 90% RH environment for 500 hours, and placed in 80 t, dry environment for 500 hours, -100-200813500 before and after the rate of change of light transmittance 'based on absolute 値' Further, it is preferably 3% or less, more preferably 1% or less. Further, the rate of change in the degree of polarization is preferably 1% or less, more preferably 0.1% or less based on the absolute enthalpy. (Liquid crystal display device) The polarizing plate obtained by bonding the optical compensation film or the optical compensation film and the polarizing film as described above can be advantageously used for a liquid crystal display device, particularly a transmissive liquid crystal display device. The transmissive liquid crystal display device is composed of a liquid crystal cell. And two polarizing plates disposed on both sides thereof.

Further, the polarizing plate is composed of a polarizing film and at least two transparent protective films disposed on both sides of the polarizing film. Further, the liquid crystal cell as described above sandwiches the liquid crystal between the two electrode substrates. In the optical compensation film of the present invention, one piece is disposed between the liquid crystal cell and one side of the polarizing plate, or two pieces are disposed between the liquid crystal cell and the polarizing plate. The polarizing plate of the present invention is used as at least one of two polarizing plates disposed on both sides of a liquid crystal cell. In this case, the polarizing plate of the present invention should be disposed such that its optical compensation film is located on the liquid crystal cell side. The liquid crystal cell is preferably in VA mode, OCB mode, IPS mode, or TN mode. <VA mode> In the liquid crystal cell of the VA mode, when the voltage is not applied, the rod-like liquid crystalline molecules are substantially aligned vertically. The liquid crystal cell system of the VA mode includes a liquid crystal cell of a VA mode in which a (棒) rod-like liquid crystal molecule is substantially vertically aligned when no voltage is applied, and a substantially horizontal alignment is applied when a voltage is applied (disclosed in 曰) -101 - 200813500, the present invention is in addition to the Japanese Patent Laid-Open No. 2-i 76625; and (2) a multi-domain (1^¥ human mode) liquid crystal cell for expanding the viewing angle (disclosed in SID 97, Digest of Tech· Papers (Pre-Collection) 28 (1999), p. 845); (3) The rod-like liquid crystalline molecules are substantially vertically aligned when no voltage is applied, and when voltage is applied The liquid crystal cell that reverses the multi-domain alignment mode (n-ASM mode) (disclosed in the Japanese Liquid Crystal Symposium's pre-collections 5 8 to 59 (19.9)); and (4) the liquid crystal cell of the SURVAIVAL mode (published in LCD INTERNATIONAL φ 98). <OCB mode> The liquid crystal cell of the CB mode is a liquid crystal cell in which the rod-like liquid crystal molecules are arranged such that the upper and lower portions of the liquid crystal cell are substantially aligned in the opposite direction (symmetry). A liquid crystal display device using a curved alignment mode liquid crystal cell is disclosed in the specification of U.S. Patent No. 45 83 8 25 and U.S. Patent No. 541 0422. Since the rod-like liquid crystal molecule system symmetrically aligns the upper portion of the liquid crystal cell with the lower portion of the liquid crystal cell, the liquid crystal cell in the curved alignment mode has a self-optical compensation function. Therefore, this liquid crystal mode is also referred to as an ptCB (Optically Compensatory Bend) liquid crystal mode. The liquid crystal display device in the curved alignment mode has the advantage of a fast response speed. <IPS mode> In the IPS mode liquid crystal cell, the rod-like liquid crystal molecules are substantially aligned parallel to the substrate, and the liquid crystal molecules, i.e., -102-200813500, will respond in a planar manner by applying an electric field parallel to the substrate surface. The IP S mode is black when no electric field is applied, and the transmission axes of the upper and lower polarizing plates are orthogonal. A method of using an optical compensation film to reduce light leakage in an oblique black display to improve a viewing angle, which is disclosed in Japanese Laid-Open Patent Publication No. Hei 10 - 5 4 9 8 2, Japanese Patent No. 1 Japanese Laid-Open Patent Publication No. Hei 9-292522, Japanese Laid-Open Patent Publication No. Hei No. Hei. No. Hei. No. Hei. No. Hei. Japanese Patent Laid-Open No. 1 0 _ 3 0 7 2 9 1 and the like. • <TN mode> In the liquid crystal cell of the TN mode, the rod-like liquid crystal molecules are substantially horizontally aligned when no voltage is applied, and are twisted and aligned at 60 to 12°. The liquid crystal cell of the TN mode is utilized most as a color TFT liquid crystal display device and has been disclosed in many documents.

According to the present invention, it is possible to provide an optical compensation film which can reduce coloring in the viewing angle direction by an optical compensation film which is not only front side but also strictly in the oblique direction, in particular, VA, IPS and OCB modes. An optical compensation film for use, and a polarizing plate using the same. In addition, according to the present invention, it is possible to provide a liquid crystal display device capable of reducing coloring in the viewing angle direction by performing optical compensation in an oblique direction not only on the front side but also in the VA, IPS, and OCB modes. Not installed. <<Embodiment> Hereinafter, an embodiment of the present invention will be described, but the present invention is not -103-

200813500 is limited to these embodiments. [Example 1] <Production of Optical Compensation Film> <Production of Transparent Support> The composition shown below was placed in a mixing tank, and each component was mixed to dissolve cellulose triacetate. :TAC) solution. Further, the maximum absorption wavelength Xmax of the structural formula (A) shown below is shown in Table 3. (Material • Solvent composition) • Cellulose acetate (degree of substitution 2.8 1 , degree of acetylation 60.2%) • Triphenyl phosphate (plasticizer) • Biphenyl diphenyl phosphate (plasticizer) • Dichloromethane (first solvent) ' • Methanol (second solvent) • The Rth rising agent shown in the structural formula (A) shown below is heated while stirring (100 parts by mass of 6.5 as determined by triethylenesulfonyl fiber compound) Parts by mass 5.2 parts by mass 633 parts by mass 9 5 parts by mass 3 parts by mass -104- 200813500

The prepared solution (coating liquid) was cast using a casting machine having a belt having a width of 2 m and a length of 65 m. The film surface temperature on the belt was 4 (TC was dried for 1 minute, then peeled off, and then dried by drying air at 140 ° C for 30 minutes to produce a film. At this time, when the solvent volatile content in the film was 20% The average drying speed was 1.5% by mass/min. Thereafter, the film was subjected to a uniaxial extension of 140% at a temperature of 190 ° C to obtain a transparent support. The Tg of the film was 148 ° C. The thickness of the transparent support obtained was 90 μm. <Measurement of Re and Rth> The transparent support prepared was humidity-conditioned at 25 ° C, 55% RH for 2 hours. The latter optical characteristics were measured at KOBRA 2 1ADH (manufactured by Oji Scientific Instruments Co., Ltd.) at the wavelengths of 4 5 〇nm, 550 nm, and 630 nm according to the method described in the foregoing. R e and R th. The measurement results are shown in Table 2. <Measurement of Humidity Dependence of Re and Rth (ARe, ARth)> The obtained transparent support was at 25 ° C, 10% RH, and The optical characteristics after conditioning for 2 hours in an environment of 25 ° C and 80% RH, according to the method described in the above -105-200813500, to KO BRA 21 ADH (manufactured by Oji Scientific Co., Ltd.) measures Re and Rth of the support at a wavelength of 5 50 nm. Then, based on the measured result, ARe = Re (25 ° C, l〇% RH) is set. —Re ( 25°C, 80%RH ), and ARth = Rth ( 2 5 °C, l〇%RH )—

The enthalpy calculated by Rth (25 ° C, 80% RH) is shown in Table 3. <Measurement of the degree of orientation P>

The degree of alignment of the obtained transparent support was measured. Specifically, a single crystal X-ray diffraction device (RAPID R-AXIS, manufactured by Rigaku Motor Co., Ltd.) was used, and an X-ray source used a CuKa line to generate X-rays at 40 kV - 3 6 mA. The collimating tube is 0.8 mm 0 and the support system is fixed using a transmission sample stage. In addition, the exposure time is set to 600 seconds. The alignment measured by using the single crystal X-ray diffraction apparatus is shown in Table 3. <Saponification treatment> 10 mL/m 2 of a 1.0 N potassium hydroxide solution was applied to the belt side of the obtained transparent support (solvent: water / isopropanol / propylene glycol = 69.2 parts by mass / 15 parts by mass / 15.8 parts by mass) After holding for about 30 seconds at about 40 ° C, the lye was scraped off, washed with pure water, and then water droplets were blown off with an air knife. Thereafter, it was dried at 10 ° C for 15 seconds. The contact angle of the support treated surface with respect to pure water was determined to be 42°. <Manufacture of alignment film> On the support, an alignment film coating liquid having the composition shown below was applied at 28 mL/m 2 using a #16 wire bar coater. It was dried at 60 ° C for 60 seconds, and then dried at 90 ° C for 150 seconds to obtain an alignment film. -10 6- 200813500 (composition of alignment film coating liquid) 1 〇 parts by mass 3 7 1 part by mass 1 1 9 parts by mass 0.5 parts by mass 0.35 parts by mass • Modified polyvinyl alcohol represented by the following structural formula (B) • Water • Methanol • Glutaraldehyde (crosslinking agent) • Citric acid ester (AS3, Sanxie Chemical Co., Ltd.

Manufactured by Sankyo Chemical Industry Co., Ltd.) OH ' 0-CO:GHa . ' .. —(CHZ/23⁄4 Structural Formula (B) Dry at 25 °C for 60 seconds at 60 °C It was dried by warm air for 60 seconds, and then dried at 90 ° C for 150 seconds. The thickness of the alignment film after drying was Ι.ΐμπι. In addition, the surface roughness of the alignment film was analyzed by atomic force microscopy (AFM: Atomic Force). The results of Microscope, SPI3800N, and Seiko Instrument (manufactured by Seiko Instruments Co., Ltd.) are 1.47 7 nm. <Formation of optical anisotropic layer> Dissolve 1 〇〇 mass in 400.0 parts by mass of methyl ethyl ketone. The disc-like liquid crystal compound represented by the structural formula (C) shown below, 0.4 parts by mass of the air interface alignment controlling agent represented by the structural formula (D) shown below, and the photopolymerization of 3 parts by mass Initiator (Irgacure 907, manufactured by Ciba-Geigy Co., Ltd.), and 1 part by mass of sensitizer (Kayacure DETX, manufactured by Nippon Kay aku Co., Ltd.) To prepare a coating solution.

The coating liquid was applied onto the alignment film as described above using a #2.0 wire rod. It was attached to a metal frame and heated in a 120 ° C thermostat bath for 90 seconds to align the discotic liquid crystal compound. Next, ultraviolet rays were irradiated for 1 minute at 120 ° C using a 120 W/cm high-pressure mercury lamp to polymerize the discotic liquid crystal compound. Thereafter, it naturally cools to room temperature. Thereby, an optically anisotropic layer was formed on the support as described above via the alignment film to obtain an optical compensation film.

0, Ν structural formula (C)

NH-R

R-NH R=

OC12H25 / OC12H? 5

NH-R Structural Formula (D) <Measurement of Optical Properties of Optically Irregular Layer> On the glass, an alignment film is produced in the same manner as described above and an optically anisotropic layer is formed on the alignment film, and then K is used. 〇BRA 21ADH measures Re ( 5 5 0 ) with a wavelength of -108- 200813500 5 50 nm, and the result is 30 nm. In addition, the hysteresis ratio was measured by light of 450 nm and 650 nm using KOBRA 21ADH, and the result was R e ( 4 5 / R e ( 6 5 〇) was 1.15. In addition, the thickness of the optically anisotropic layer was measured, The result is 0.8 μm. The discotic liquid crystal compound represented by the structural formula (C) shown above is injected while placing the director of the discotic liquid crystal compound in parallel in the in-plane 2 μιη glass cell, and is placed 2 minute.

The hysteresis 値 Re_m ( 5 5 〇 ) was measured using a KOBRA 2 1ADH with a wavelength of 550 nm, and the result was 2 3 5 nm. Since the interstitial space is 2 μπι, the Re of Re__m(55〇)/d is 0.118. [Example 2] <Production of optical compensation film> <Production of transparent support> The composition shown below was placed in a mixing tank, and while stirring, y was dissolved while heating to prepare a cellulose triacetate. Acid ester (triethylene oxazide: TAC) solution. (Materials · Solvent composition) • Cellulose acetate (degree of substitution 2.8 7 , 100 parts by mass of hexamidine 6 6%) • Triphenyl phosphate (plasticizer) 6.5 parts by mass • Biphenyl phosphate Phenyl ester (plasticizer) 5.2 parts by mass • Dichlorocarbyl (first solvent) 630 parts by mass • Methanol (second solvent) 95 parts by mass • Rth 2.5 parts by mass as shown in the above formula (A) Riser -109- 200813500 The prepared coating liquid was cast using a casting machine having a belt having a width of 2 m and a length of 65 m. After the film surface temperature on the belt was 40 ° C, it was dried for 1 minute, and then peeled off, followed by drying at 140 ° C for 30 minutes to produce a film. At this time, the average drying speed at a solvent volatile content of 20% in the film was 1.5% by mass/min. Thereafter, the film was subjected to a uniaxial extension of 150% at a temperature of 185 ° C to obtain a transparent support. Further, the Tg of the cellulose film used had a Tg of 149 °C. The resulting transparent support has a thickness of 8 5 μ Hi.

For the obtained transparent support, Re and Rth, humidity dependency, and orientation P were measured. The results are shown in Tables 2 and 3. <Formation of optical anisotropic layer> In the same manner as in Example 1, after the saponification treatment was applied to the support, an alignment film was formed, and an optically anisotropic layer was formed on the alignment film. To produce an optical compensation film. [Example 3] <Production of optical compensation film> <Production of transparent support> The composition shown below was placed in a mixing tank, and while being heated, the mixture was stirred to dissolve the components to prepare cellulose triacetate. A solution of an acid ester (triethyl fluorenyl cellulose: TAC). (Material • Solvent composition) • Cellulose acetate (degree of substitution 2.81, E 1 〇〇 mass fraction / 醯 degree 60.2%) 6.5 parts by mass • Triphenyl phosphate (plasticizer) -1 1 0 - 200813500 • Biphenyldiphenyl phosphate (plasticizer) 5.2 parts by mass • Dichloromethane (first solvent) 6 3 9 parts by mass • Methanol (second solvent) 96 parts by mass • Structure as shown above (A ) Rti! 4.0 parts by mass riser

The prepared coating liquid was cast using a casting machine having a belt having a width of 2 m and a length of 65 m. The film surface temperature on the belt was 4 (TC was dried for 1 minute, then stripped, and then dried by drying air at 140 ° C for 30 minutes to produce a film. At this time, the solvent volatile matter in the film was 2 The average drying speed at 〇% was 1.5 mass%/min. Thereafter, the film was uniaxially stretched at 140% under a temperature of 2 Torr to produce a transparent support, and As an optical compensation film, the Tg of the cellulose-deposited film used was 14 9 ° C. The transparent support (optical compensation film) obtained was a transparent support having a thickness of 9 5 μm. The Re and Rth, the humidity dependence, and the orientation P were measured. The results are shown in Table 2 and Table 3. [Example 4] <Production of Optical Compensation Film> <Manufacture of Transparent Support> The coating liquid prepared in the same composition as in Example 1 was cast using a casting machine having a belt having a width of 2 m and a length of 65 m. After the film surface temperature on the belt was 40 ° C, it was dried for 1 minute, and then subjected to After stripping, it was dried by drying at 140 ° C for 30 minutes to produce a film. At this time, the solvent volatile matter in the film was The average drying speed at 20% is 1.5% by mass/min. After -111-200813500, the film is applied with a uniaxial extension of 110% at a temperature of 180 ° C to obtain a transparent support. Further, the Tg of the cellulose film used was 148 ° C. Further, the thickness of the transparent support obtained was 90 μm. For the transparent support obtained, Re and Rth, humidity dependence, and And the degree of orientation P. The results are shown in Table 2 and Table 3. <Formation of optical anisotropic layer> In the same manner as in Example 1, after the saponification treatment was applied to the support, an alignment film was formed, and An optically exclusive layer is formed on the alignment film, and an optical compensation film is obtained by Φ. [Example 5] <Manufacture of optical compensation film> <Manufacture of transparent support>

The coating liquid prepared in the same composition as in Example 1 was cast using a casting machine having a belt having a width of 2 m and a length of 65 m. The film surface temperature on the belt was 4 (TC was dried for 1 minute, then peeled off, and then dried by drying air at 140 ° C for 30 minutes to produce a film. At this time, when the solvent volatile content in the film was 20% The average drying speed was 1.5% by mass/min. Thereafter, the film was subjected to a 160% uniaxial extension at a temperature of 1901 to prepare a transparent support. The Tg of the film was 148 ° C. Further, the thickness of the transparent support obtained was 95 μm. The Re and Rth, the humidity dependency, and the orientation P were measured for the transparent support obtained. 2 and Table 3. <Formation of optical anisotropic layer> In the same manner as in Example 1, after the saponification treatment was applied to the support, -1 1 2 - 200813500 ', an alignment film was formed and formed on the alignment film. An optically exclusive layer is formed to obtain an optical compensation film. [Example 6] <Manufacture of optical compensation film>

&lt; (Production of Support>> The composition shown below was placed in a mixing tank, and the mixture was heated while stirring. The components were dissolved to prepare cellulose triacetate (triethylenesulfonate). : TAC) solution (Material • Solvent composition) • Cellulose acetate (degree of substitution 2.81, B 100 醯 醯 60.2%) f • Triphenyl phosphate (plasticizer) 6.5 parts by mass • Biphenyldiphenyl phosphate (plasticizer) 5.2 parts by mass • Dichloromethane (first solvent) 6 3 3 parts by mass • Methanol (second solvent) 95 parts by mass • As shown in the above formula (A) Rth 3 parts by mass of the rising agent is shown. The coating liquid obtained is cast using a casting machine having a width of 2 m and a length of 6 5 m. The film surface temperature on the belt is 40 ° C and then dried. After 1 minute, after stripping, it was dried in a dry air at 1 ° ° C for 10 minutes, and dried in a dry air at 140 ° C for 20 minutes to obtain a film. At this time, the average of the solvent volatiles in the film was 20%. Drying speed, 1.1 quality %/min. Thereafter, the film was applied at a temperature of 190 ° C, 140% of a single! axial extension to obtain a transparent support. In addition, the T g of the cellulose film used was made. The thickness of the transparent support thus obtained was 90 μm. The transparent support thus obtained was measured for Re and Rth, humidity dependency, and orientation P. As shown in Table 2 and Table 3. <Formation of optical anisotropic layer> In the same manner as in Example 1, after the saponification treatment was applied to the support, 'the alignment film was formed, and optical anisotropy was formed on the alignment film. Layer to obtain an optical compensation film. [Example 7]

<Manufacture of Optical Compensation Film> &lt;Production of Support>> The composition shown below was placed in a mixing tank, and stirred while heating to dissolve each component to prepare CAP (cellulose acetate-propionate) ) solution. (Material • Solvent composition) • Cellulose acetate-propionate (the substitution degree of ethyl ketone is 100 parts by mass of 2.8, the degree of substitution of propyl ketone is 〇·6 8, the total degree of substitution is 2.57, and the degree of acetylation is 57.1. % by mass of 5 parts by mass represented by the structural formula (E) shown below, as shown in the following formula (F), 5 parts by mass of dichloromethane (first solvent), 392 parts by mass Methanol (second solvent) 54 parts by mass • 114- 200813500 • Rth 2 parts by mass as shown in the above formula (A), rising agent 0 I! 713⁄4 〇, : 013⁄4 〇 〇 〇 〇 (E)

&lt;^雠9·❹面“€«士矿 OICHife 一 隹 Q

H II 0 0 Structural Formula (F) The prepared coating liquid was cast on a glass plate, dried at room temperature for 1 minute, and then dried at 70 ° C for 6 minutes. The obtained cellulose propionate film was peeled off from a glass plate and dried at 140 ° C for 30 minutes. The dried film was subjected to a 130% free end uniaxial extension at a temperature of 130 ° C Φ to obtain a support. The film thickness of the obtained film was 80 μm. For the obtained transparent support, Re and Rth, humidity dependency, and orientation P were measured. The results are shown in Tables 2 and 3. <Formation of Optical Isotropic Layer> In the same manner as in Example 1, after the saponification treatment was applied to the support, an alignment film was formed, and an optically anisotropic layer was formed on the alignment film to obtain an optical compensation film. -115-200813500 [Example 8] <Production of optical compensation film> <Production of support> The composition shown below was placed in a mixing tank and stirred while being heated to dissolve the components to prepare the fiber. Triacetate vitamin: TAC) solution. (Material • Solvent composition) (Triethylene sulfhydryl • Cellulose acetate (degree of substitution 2.8 1 , acetylation degree 60.2%) 100 parts by mass • 10 parts by mass of m-hydroxybenzoic acid • Dichlorocarbyl (first solvent) 6 1 4 parts by mass • Methanol (second solvent) 92 parts by mass • The solution (coating liquid) used is prepared by using 3 parts by mass of the Rth rising agent represented by the structural formula (A) shown above. The casting machine having a belt width of 2 m and a length of 65 m is cast. The film surface temperature on the belt is dried at 40 ° C for 1 minute, then stripped, and dried at 140 ° C. The film was dried for 3 minutes to form a film. At this time, the average drying speed at a solvent volatile content of 20% in the film was 1.5% by mass/minute. Thereafter, the film was subjected to a temperature of 190 ° C. A 140% uniaxial extension was applied to obtain a transparent support. In addition, the Tg of the cellulose film used had a Tg of 146 ° C. The thickness of the transparent support produced was 80 μm. The support was measured for Re and Rth, humidity dependence, and orientation P. The results are shown in Tables 2 and 3. -116- 2 00813500 <Formation of optical anisotropic layer> In the same manner as in Example 1, after the saponification treatment was applied to the support, an alignment film was formed, and an optically anisotropic layer was formed on the alignment film to obtain an optical compensation film. [Example 9] „ <Production of optical compensation film> An optical compensation film was produced in the same manner as in Example 1. The Re and Rth, the humidity dependency φ, and the alignment degree were measured for the obtained transparent support. P. The results are shown in Table 2 and Table 3. <Formation of Optical Isotropic Layer> In the same manner as in Example 1, after the saponification treatment was applied to the support, an alignment film was formed and on the alignment film. An optically exclusive layer was formed to obtain an optical compensation film. [Example 1 〇] <Production of Optical Compensation Film> The obtained solution (coating liquid ^) was produced under the same conditions as in Example 8 to have a width of The casting machine with a length of 2 m and a length of 65 m is cast. After the film surface temperature on the belt is 40 ° C, it is dried for 1 minute, then stripped, and then dried by drying air at 140 ° C. Minutes to make the film. At this time The average drying speed at a solvent volatile content of 20% in the film was 15% by mass/minute. Thereafter, the film was subjected to a uniaxial extension of 140% at a temperature of 200 ° C to obtain a transparent support. In addition, the Tg of the cellulose film used was 146 ° C. The thickness of the transparent support obtained was 80 μm 200813500, and the transparent support prepared was measured for Re and Rth, humidity dependence, and alignment. The results are shown in Table 2 and Table 3. <Formation of Optical Isotropic Layer> In the same manner as in Example 1, after the saponification treatment was applied to the support, an alignment film was formed, and the alignment film was formed. An optically anisotropic layer is formed thereon to produce an optical compensation film. [Example 1 1] <Manufacture of optical compensation film>

An optical compensation film was produced in the same manner as in Example 1 . For the obtained transparent support, Re and Rth, humidity dependency, and orientation P were measured. The results are shown in Tables 2 and 3. <Formation of Optical Isotropic Layer> In the same manner as in Example 1, after the saponification treatment was applied to the support, an alignment film was formed, and an optically anisotropic layer was formed on the alignment film to obtain an optical compensation film. [Example 1 2] <Manufacture of optical compensation film> An optical compensation film was produced in the same manner as in the production method of Example 4. For the obtained transparent support, Re and Rth, humidity dependency, and orientation P were measured. The results are shown in Tables 2 and 3. <Formation of Optical Isotropic Layer> In the same manner as in Example 1, after the saponification treatment was applied to the support, an alignment film was formed, and an optically anisotropic layer was formed on the alignment film to obtain an optical compensation film. -118-200813500 [Comparative Example 1] <Production of Optical Compensation Film> <Production of Transparent Support> The composition shown below was placed in a mixing tank, and stirred while being heated to dissolve each component to prepare Cellulose triacetate (TAC) solution. (Material • Solvent composition) (Triethylene sulfhydryl • Cellulose acetate (degree of substitution 2.8 1 , acetylation degree 60.2% ) 1 0 0 parts by mass • Triphenyl phosphate (plasticizer) 6.5 parts by mass • Biphenyldiphenyl phosphate (plasticizer) 5.2 parts by mass • Dichloromethane (first solvent) 6 1 7 parts by mass • Methanol (second solvent) 93 parts by mass

The prepared coating liquid was cast using a casting machine having a belt having a width of 2 m and a length of 65 m. After the film surface temperature at the belt was 40 ° C, it was dried for 1 minute, and then peeled off, followed by drying at 140 ° C for 30 minutes to produce a film. At this time, the average drying speed at a solvent volatile content of 20% in the film was 1.5% by mass/min. Thereafter, the film was subjected to a uniaxial extension of 140% under a temperature condition of 190 ° C to obtain a transparent support. Further, the Tg of the cellulose film used had a Tg of 148 °C. The thickness of the transparent support is 90 μm. For the obtained transparent support, Re and Rth, humidity dependency, and orientation P were measured. The results are shown in Tables 2 and 3. <Formation of Optical Anisotropic Layer> -119- 200813500 After the saponification treatment was applied to the support in the same manner as in Example 1, an alignment film was formed, and an optically anisotropic layer was formed on the alignment film to obtain Optical compensation film. [Comparative Example 2] <Production of Optical Compensation Film> <Production of Transparent Support> The composition shown below was placed in a mixing tank, stirred while being heated, and the components were dissolved to prepare cellulose triacetate. A solution of an acid ester (triethyl fluorenyl cellulose 0-dimensional: TAC). (Material • Solvent I and formed) Cellulose acetate (degree of substitution 2.8 1 , degree of acetylation is 60.2%) 1 part by mass of triphenyl phosphate (plasticizer) 6.5 parts by mass of biphenyl phosphate Benzyl ester (plasticizer) 5.2 parts by mass of dichloromethane (first solvent) 6 1 7 parts by mass of methanol (second solvent) 93 parts by mass of 2.5 parts by mass of the Rth rising agent represented by the structural formula (A) shown above

The resulting coating liquid was cast using a casting machine having a belt having a width of 2 m and a length of 65 m. After the film surface temperature on the belt was 40 ° C, it was dried for 1 minute, and then peeled off, and then dried at a drying air temperature of 140 ° C for 30 minutes to produce a film. At this time, the average drying speed at a solvent volatile content of 20% in the film was 1.5% by mass/min. Thereafter, the film was subjected to a 120% uniaxial extension under a temperature of 150 ° C to obtain a transparent support. In addition, the Tg of the cellulose film used in -120-200813500 has 148 it. The thickness of the transparent support obtained was 90 μm. For the obtained transparent support, Re and Rth, humidity dependency, and orientation P were measured. The results are shown in Tables 2 and 3. <Formation of optical anisotropic layer> In the same manner as in Example 1, an aligning film was formed by applying a saponification treatment to the support, and an optically anisotropic layer was formed on the alignment film to obtain an optical compensation film. Lu [Comparative Example 3] <Production of Optical Compensation Film> <Production of Transparent Support> The composition shown below was placed in a mixing tank, stirred while being heated, and the components were dissolved to prepare cellulose three. Acetate (triethyl fluorenyl cellulose: TAC) solution. Further, the maximum absorption wavelength Xmax measured for the compound of the structural formula (E) shown below is shown in Table 3. φ (Material • Solvent composition) 100 parts by mass 6.5 纛 5.2 5.2 纛 617 93 93 93 纛 10 10 • • • • • • • • 纤维素 纤维素 纤维素 纤维素 纤维素 纤维素 纤维素 纤维素 纤维素 纤维素 纤维素 2.8 2.8 2.8 2.8 2.8 2.8 2.8 2.8 • Triphenyl phosphate (plasticizer) • Biphenyl diphenyl phosphate (plasticizer) • Dichloromethane (first solvent) • Methanol (second solvent) • The structural formula (G) shown below Compound shown -121- 200813500

Structural formula (G)

The prepared coating liquid was cast using a casting machine having a belt having a width of 2 m and a length of 65 m. After the film surface temperature on the belt was 40 ° C, it was dried for 1 minute, and then peeled off, followed by drying at 140 ° C for 30 minutes to produce a film. At this time, the average drying speed at a solvent volatile content of 20% in the film was 1.5% by mass/min. Thereafter, the film was subjected to a uniaxial extension of 1 20% at a temperature of 185 ° C to obtain a transparent support. Further, the Tg of the cellulose film used had a Tg of 148 °C. The thickness of the transparent support produced was 80 μm. For the obtained transparent support, Re and Rth, humidity dependency, and orientation P were measured. The results are shown in Tables 2 and 3.

<Formation of optical anisotropic layer> In the same manner as in Example 1, a saponification treatment was applied to the support to form an alignment film, and an optically anisotropic layer was formed on the alignment film to obtain an optical compensation film. [Comparative Example 4] <Production of Optical Compensation Film> <Production of Transparent Support> &gt; A coating liquid having the same composition as that of Example 1 was used, and a belt having a width of 2 m and a length of 65 m was used. The casting machine performs casting. Film on the belt -122- 200813500 After the surface temperature was changed to 40 ° C, it was dried for 1 minute, and then peeled off, followed by drying at 140 ° C for 30 minutes to produce a film. At this time, the average drying rate at a solvent evaporation of 20% in the film was 1.5% by mass/min. Thereafter, although the film was subjected to a uniaxial extension of 200% at a temperature of 190 ° C, the film was broken. The degree of alignment of the fractured transparent support was measured in the same manner as in Example 1 and found to be 0.31. Therefore, a transparent support having an orientation P of more than 0.3 0 cannot be obtained. [Comparative Example 5]

<Manufacture of Optical Compensation Film> <Production of Transparent Support> A transparent support was produced in the same manner as Comparative Example 1 described above, and this was used as an optical compensation film. For the obtained transparent support, Re and Rth, humidity dependency, and orientation P were measured. The results are shown in Tables 2 and 3. <Formation of Optical Isotropic Layer> In the same manner as in Example 1, after the saponification treatment was applied to the support, an alignment film was formed, and an optically anisotropic layer was formed on the alignment film to obtain an optical compensation film. (Manufacture of polarizing plate) First, iodine was adsorbed on a polyvinyl alcohol film to be stretched to obtain a polarizing film. Thereafter, each of the optical compensation films of Examples 1 to 8, 11 and Comparative Examples 1 to 3 and Comparative Example 5 was attached to the polarizing film using a polyvinyl alcohol-based adhesive, and the polarizing film was further attached thereto. On one side, a commercially available cellulose triacetate film (Fujitac TD80UF, manufactured by Fuji Photo Film Co., Ltd.) to which saponification treatment was applied was carried out using a polyvinyl alcohol-based adhesive. Attached. Further, when an optical compensation film is attached to one surface of the polarizing film, the transmission axis of the polarizing film and the retardation axis of the optical compensation film are arranged in parallel. Ten kinds of polarizing plates according to Examples 1 to 8, 11, Comparative Examples 1 to 3, and Comparative Example 5 were obtained as described above. <Manufacture of Protective Film for Polarizing Plate with Coating Layer> <Modulation of Coating Liquid for Coating Layer>

As shown in the following composition, the layered inorganic compound is mixed with water in such a manner as to have a desired concentration. Thereafter, a high-pressure dispersing machine was used to apply a high-pressure dispersion treatment at 30 Mpa three times to disperse it in water. [Composition of coating liquid for coating layer] • HR3010 (manufactured by Kuraray (111^^7), 5 parts by mass) Co., Ltd. • High-pressure dispersing agent (synthetic mica) in water ME- 40 parts by mass 1 〇〇 (solid content ratio) 5 mass%) (manufactured by CO-OP Chemical Co., Ltd.) • 75 parts by mass of water (coating of coating layer) For triethylenesulfonyl cellulose (TAC-TD80U, Fujifilm Co., Ltd. (manufactured by FUJIFILM Co., Ltd.), which was applied to one side of the coating layer, and saponified at 50 ° C with a 1 mol /L alkaline solution. -124- 200813500 Thereafter, the coating layer having the above-mentioned coating layer is applied to the dried film thickness by using a coating machine having a slit die on a saponified surface of a triethylenesulfonated cellulose film. 20μιη. Thereafter, it was coated at a conveying speed of 30 m/min, and dried at 130 for 5 minutes, and then taken up. (Measurement of moisture permeability) The method for measuring the moisture permeability can be applied to the measurement of the gas permeability of the vaporized gas (page 2, page 294) of the "Physical Properties of Polymers II" (Multimedia Publication Lecture 4). The method of mass method, thermometer method, vapor pressure method, adsorption amount method), that is, the 70 mm 0 film sample used in the present invention is conditioned at 60 ° C, 95% RH for 24 hours, respectively, and according to JIS Z- 0208 The amount of moisture per unit area (g/m2) was calculated by the moisture permeability = the mass after the humidity adjustment - the mass before the humidity adjustment. At this time, at an appropriate time interval, the cup placed in the constant temperature and humidity device is repeatedly taken out and weighed, and the mass increase per unit time is determined by two consecutive weighings until it can be 5 The evaluation continues until within %. In addition, in order to avoid the influence of the moisture absorption of the test material, an empty cup in which the moisture absorbent is not placed is measured to correct the moisture permeability. The moisture permeability of the triethylenesulfonyl cellulose coated with the coating layer as described above was 230 g/m2, and the moisture permeability of the triethylsulfonyl cellulose which was not coated with the coating layer was 1,4〇〇g/ M2 has been significantly reduced. v (manufacture of a polarizing plate with a coating layer) f The ytterbium is adsorbed on an extended polyethyl alcohol storage film to obtain a polarizing film. Thereafter, the optical compensation films of Examples 9, 10, and 12 were attached to one surface of the polarizing film using a -12 5-200813500 polyvinyl alcohol-based adhesive, and the other side of the polarizing film was used for polymerization. A vinyl alcohol-based adhesive is applied to a triethylenesulfonyl cellulose which has been subjected to saponification treatment and which is coated with the coating layer as described above. Further, when an optical compensation film is attached to one surface of the polarizing film, the transmission axis of the polarizing film and the slow axis of the optical compensation film are arranged in parallel. In this way, polarizing plates of Examples 9, 10 and 12 were obtained. <Evaluation of Installation of Liquid Crystal Display Device> <Production of Bending Alignment Liquid Crystal Cell>

On the glass substrate with the ITO electrode, a polyimide film was provided as an alignment film, and a rubbing treatment was applied to the alignment film. The two glass substrates thus obtained were placed in a state in which the rubbing directions were arranged in parallel, and the inter-cell gap was set to 4·7 μm. A liquid crystal compound (ZLI 1132, manufactured by Merk &amp; Co.) having an An of 0.1396 was injected in the interstitial space to prepare a curved alignment liquid crystal cell. The upper side and lower side polarizing plates of the liquid crystal display device using the curved alignment type liquid crystal cell, which were obtained by using the optical compensation films obtained in Examples 1 to 2, 4 to 6, and Comparative Examples 1 to 3, were used. The polarizing plate is attached to each of the viewer side and the backlight side via an adhesive so that the optical compensation film is positioned on the liquid crystal cell side. Further, it is disposed such that the optically anisotropic layer of the polarizing plate is opposed to the cell substrate, and the rubbing direction of the liquid crystal cell is antiparallel to the rubbing direction of the optically exclusive layer facing the face. Further, the crossed Nichol is arranged such that the transmission axis of the observer-side polarizing plate is in the vertical direction and the transmission axis of the backlight-side polarizing plate is oriented in the left-right direction. •126- 200813500

After the obtained liquid crystal panel was placed in an environment of 25 ° C and 60% RH, the evaluation of the display characteristics was evaluated based on the evaluation criteria as described below. The results are shown in Table 5. [Evaluation Criteria] Viewing angle (contrast coefficient (c ο ntrastrati 〇) is 10 or more and there is no polar angle range of gray scale inversion) 〇: Up and down and left and right are 75° polar angle or more; 〇△: 3 directions in up, down, left and right It is above 75° polar angle; △: 2 directions of up, down, left and right are above 7 5 ° polar angle; X: 3 directions of up, down, left and right are polar angles less than 75°. A rectangular wave voltage of 55 Hz was applied to the liquid crystal cells. Take the white display ί and black to display the normal white mode of 5 V. The transmittance at the front is the voltage that becomes the smallest, that is, the black voltage, and at that time, the azimuth angle, the black display image of the 60° polar angle view, and the azimuth angle, 60° Polar angle with 1 800. Azimuth, 60 ° ® color displacement Δχ. The results are shown in Table 3. In addition, in Table 3 shown below, the so-called "color shift" is A° azimuth of ACu'V,: u'ν' (60. polar angle) - u, V, ( 〇 . ) and at 180 ° ACu'v' of azimuth: sum of u'v' (60° polar angle) - t 极 ° polar angle). (u'v': color coordinates in CIELAB space) In addition, the ratio of transmittance (white display/black display) is set to the number of tf, and is manufactured using a measuring machine (EZ-Contrast 160D, ELDIM, France) ), and the angle of view is measured in eight stages from black display (L1) to white repulsion. The results are shown in Table 4. 7 days to evaluate the rate of 2 V on the black side (corner angle, system polar angle ((L8 -127-

200813500 In addition, in Table 4 shown below, the "viewing angle" refers to a range in which the index coefficient is 1 〇 or more and there is no "black-level gray-scale inversion (inversion of L1 and L2)". <Manufacture of VA Alignment Liquid Crystal Cell> The liquid crystal cell has a cell gap of 3.6 μm between the substrates, and is a liquid crystal material having a dielectric constant anisotropy ("MLC6608", Merce (Merk &amp; Corp. Manufactured) A drop is injected between the substrates and sealed to form a liquid crystal layer between the substrates. The hysteresis of the liquid crystal layer (Φ, the thickness d (μηι) of the liquid crystal layer and the Δ η · d) of the refractive index anisotropy An [J is set to 300 nm. In addition, the liquid crystal material [J is aligned and aligned. In the liquid crystal display mounting side and lower polarizing plates using the vertically aligned liquid crystal cell as described above, the polarizing plates of the optical compensation films produced in Examples 3, 12 and Comparative Examples were used to enable the polarizing plate to be used in the polarizing plate. The light-receiving film side is opposed to the liquid crystal cell side, and one piece is attached to each of the observation and backlight sides via an adhesive. Further, the transmission axis of the crossed-side Nicols arrangement observer side polarizing plate is the up-and-down direction, and the transmission axis of the backlight side offset is the left-right direction. After the obtained liquid crystal panel was placed in an environment of 25 ° C and 60% RH, the evaluation results of the evaluation of the display characteristics according to the above [Evaluation Criteria] are shown in Table 5. A rectangular wave voltage of 5 5 Hz was applied to the liquid crystal cell. Set to normal black mode with black display and black display not 0V. It is assumed that there is a negative gram in the 0° azimuth of the black display and a black contrast in the 60° polar angle view, which is the product of the 5th complement of the complement. It is measured at 5V to reflect the -128-200813500 rate (%), and 〇. Azimuth, 6 〇. Polar angle with 1 800. Azimuth, 60. The color of the polar angle is shifted by Ax. The results are shown in Table 3. In addition, the ratio of the transmittance (white display/black display) is the contrast ratio, and the measuring machine (EZ-Contrast 1 60D, manufactured by ELDIM Co., Ltd.) is used, and 8 from the black display (L1) to the white display (L8). The stage measures the angle of view. The results are shown in Table 4. <Measurement of Humidity Dependence of Display Characteristics> After the liquid crystal panel obtained as described above was left in an environment of 25° C., 10% RH, Φ 25° C. and 80% RH for 7 days, according to the above [Evaluation Criteria] 〕 Conduct an assessment to show an assessment of the characteristics. The results are shown in Table 5.

Table 2

Re Rth 450 550 630 450 550 630 Example 1 28.2 41.0 53.8 184.9 173.0 167.6 Example 2 30.0 40.0 55.0 180.0 175.0 170.0 Example 3 40.0 63.0 86.0 135.0 115.0 106.0 Example 4 39.0 45.0 50.0 183.0 175.0 170.0 Example 5 22.0 40.0 58.0 186.0 170.0 165.0 Example 6 48.0 57.0 68.0 146.0 148.0 150.0 Example 7 35.0 45.0 51.0 180.0 173.0 170.0 Example 8 33.0 41.0 47.0 187.0 173.0 166.0 Example 9 28.0 41.0 54.0 185.0 173.0 168.0 Example 10 33.0 41.0 47.0 187.0 173.0 166.0 Example 11 33.0 41.0 47.0 187.0 173.0 166.0 Example 12 39.0 45.0 50.0 183.0 175.0 170.0 Comparative Example 1 -14.3 4.3 12.8 1.0 11.6 17.2 Comparative Example 2 49.2 53.5 55.7 49.2 53.5 55.7 Comparative Example 3 27.7 45.1 53.1 28.9 40.9 46.5 . Comparative Example 4 • • - - Comparative Example 5 -14.3 4.3 12.8 1.0 11.6 17.2 129- 200813500

Table 3 Re(45〇) /Re(550, Re(630) /R©(550) Rth(45〇) /Rthf55〇) Rth(630) /Rth(55〇) △Re △Rth P λ-max Displacement Transmittance Example 1 0.69 1.31 1.07 0.97 56 32 0.135 265 0.05 0.01 Example 2 0.75 1.38 1.03 0.97 55 32 0.132 265 0.09 0.03 Example 3 0.63 1.37 L17 0.92 100 34 0.140 265 0.06 0.02 Example 4 0.867 1.11 1.05 0.97 24 31 0.05 265 0.10 0.04 Example 5 0.550 1.45 1.09 0.97 79 31 0.30 265 0.11 0.04 Example 6 0.842 1.19 0.99 1.01 44 32 0.134 265 0.09 0.05 Example 7 0.78 1.13 1.04 0.98 10 20 0.05 265 0.07 0.01 Example 8 0.81 1.15 1.08 0.96 3 10 0.135 265 0.08 0.01 Example 9 0.69 1.31 1.07 0.97 18 32 0.135 265 0.05 0.01 Example 10 0.81 1.15 1.08 0.96 3 10 0.135 265 0.08 0.01 Example 11 0.81 1.15 1.08 0.96 3 10 0.135 265 0.08 0.01 Example 12 0.867 1.11 1.05 0.97 24 31 0.05 265 0.10 0.04 Comparative Example 1 -3.33 2.98 0.09 1.48 59 32 0.135 - 0.90 0.19 Comparative Example 2 0.92 1.04 0.92 1.04 14 31 0.030 265 0.70 0.13 Comparative Example 3 0.62 1.18 0.71 1.14 55 32 0.130 220 0.6 0.12 Comparative Example 4 Comparative Example 5 - 3.33 2.98 0.09 1.48 59 34 0.135 - 0.9 0.19 Table 4 Upper and lower viewing angles of the embodiment 1 80 80 80 Example 2 80 80 80 Example 3 80 80 80 Example 4 80 80 75 Example 5 80 80 75 Example 6 75 75 75 Example 7 78 78 78 Example 8 78 78 78 Example 9 80 80 80 Example 10 78 78 78 Example 11 78 78 78 Example 12 80 80 80 Comparative Example 1 50 50 50 Comparative Example 2 65 65 65 Comparative Example 3 60 60 60 Comparative Example 4 - - - Comparative Example 5 50 50 50 -130- 200813500 Table 5

Contrast viewing angle 10% RH 60% RH 80% RH Example 1 〇 △ 〇〇 △ Example 2 〇 △ 〇〇 △ Example 3 〇 △ 〇〇 △ Example 4 〇 △ 〇〇 △ Example 5 〇 △ 〇 " 〇 △ Example 6 〇 △ 〇〇 △ Example 7 〇 △ 〇〇 Example 8 〇〇〇 Example 9 · 〇〇〇 △ Example 1 〇〇〇〇 Example 11 〇〇〇 Example 12 〇〇〇 △ Comparative Example 1 XXX Comparative Example 2 XXX Comparative Example 3 XXX Comparative Example 4 - - - Comparative Example 5 XXX

It can be understood from the results of Tables 2 to 5 that the alignment degree p is in accordance with the condition of 0.05 0.30, and the optical characteristics are in accordance with 1 〇 &lt;1^(55()) &lt; 100 ' 100 &lt; Rth ( 5 5 0) &lt; 200, 0.5 &lt; Re ( 4 5 0 ) /Re ( 5 5 0 ) &lt; 1.0, 1.0 &lt; Re(63〇)/Re(55〇) &lt; 1·5, 1.0 &lt; Rth (45〇)/Rth( 5 5 0 ) &lt; 1·5, and 0.5 &lt; Rth ( 63.) / Rth ( 5 5 0 ) &lt; 1.0 of condition φ Optical compensation film of Examples 1 to 2 In the liquid crystal display device, the liquid crystal display device having the optical compensation films of Comparative Examples 1 to 5 has a low transmittance at a black display of a polar angle of 60°, and the color shift with the front surface is also small, so that the contrast is remarkable. improve. The optical compensation film of the present invention, and the polarizing plate, particularly for the VA mode, the [PS mode, or the OCB mode, can improve the high contrast, and the color shift depending on the viewing direction in the black display, and significantly improve the viewing angle contrast. Therefore, it is suitable for use in a liquid crystal display device. -131 - 200813500 The liquid crystal display device of the present invention can optically compensate liquid crystal cells, improve contrast, and reduce color shift depending on viewing angle direction, and is therefore suitable for use in portable telephones, personal computer monitors, television sets, LCD projectors, etc. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a schematic view for explaining a configuration example of a liquid crystal display device of the present invention.

Fig. 2 is a graph showing the optical characteristics of an example of the optical compensation film used in the present invention. Fig. 3A is a view for explaining a Puancarre ball used for the change in the polarization state of the incident light of the liquid crystal display device of the present invention. Fig. 3B is a view for explaining a Puancarre ball used for the change of the incident light polarization state of the liquid crystal display device of the present invention. Fig. 4 is a schematic view showing a configuration of a conventional OCB mode liquid crystal display device. Fig. 5A is a schematic view showing a Puancarre ball used for explaining a change in the polarization state of the incident light in an example of a conventional liquid crystal display device. Fig. 5B is a schematic view showing the Puancarre ball used for the change of the polarization state of the incident light in an example of the conventional liquid crystal display device. Fig. 6A is a view for explaining a Puancarre ball used for the change of the incident light polarization state of the liquid crystal display device of the present invention. Fig. 6B is a schematic view for explaining a Puancarre ball used in the change of the incident light polarization state of the liquid crystal display device of the present invention. Figure 7A shows the wavelength dispersion map of the film of -132-200813500 obtained by adding Rth rising agent without extension. Fig. 7B shows that Rth is not added with a rising agent to perform only the wavelength dispersion map of the film obtained by the extension. Figure 7C shows a wavelength dispersion map of the film obtained by adding an Rth rising agent. [Main component symbol description]

1, 101 2, 102 Transmittance 4a, 14a' 104a, 114a Delay phase 5, 9 Optics 5a, 9a Alignment 6, 8 Substrate 7 Liquid crystal 13a, 103a, 1 13a Transparent 13A, 1 13A Optical Il, l6 From left to right Ib1 -Ib6 from left Ib 1 '~Ib 6' from right Ir 1 to Ir6 from left IR 1 '~IR 6 ' from right RD

Polarizing film axis azimuthal layer average direction molecule (liquid crystal layer) Support body compensation film 60° incident G light polarization state 60° incident G light polarization state 60° incident B light polarization state 60° incident Polarized state of B light 60° incident R light polarization state 60° incident R light polarization state

Re Rth arrow mark In-plane hysteresis Thickness direction hysteresis -133-

Claims (1)

200813500 X. Patent Application Range: 1. An optical compensation film characterized by having a transparent support body containing at least one Rth rising agent, and the following formula (A) is calculated from the X-ray diffraction measurement of the transparent support body. The defined degree of orientation p is from 0.05 to 0.30: Ρ = &lt; 3 cos1p ~ 1 &gt; /2 Equation (A ) But in the equation (A), &lt;cos1p&gt;=«f(0,7E) cos1pI(p) sinpdp/J ( 05π ) I ( β ) sinpdp &gt; Further, in the formula (A), the angle formed by the incident surface of the X-ray incident on the β-ray and the direction in the plane of the transparent support is I 在 in the X-ray diffraction pattern measured by the angle β. </ RTI> </ RTI> </ RTI> </ RTI> </ RTI> </ RTI> </ RTI> </ RTI> </ RTI> </ RTI> </ RTI> </ RTI> </ RTI> <RTIgt; Nm &lt; R e( 5 5 〇) &lt; 1 0 0 nm Formula (1) 100 nm &lt; Rthcsso) &lt;200nm Formula (2) 0.5 &lt;Re(45〇&gt; /Re (55〇) &lt; 1.0 Formula (3) 1.0 &lt; Re(63〇) /Re(55〇) &lt; 1.5 Formula (4) 1.0 &lt; Rth( 45〇) /Rthc 5 50) &lt;1.5 Formula (5) 0.5 &lt; Rth (63〇&gt; /Rth(55〇) &lt;1.0 Formula (6) However, in the formulas (1) to (6), Re (λ) is a hysteresis of the transparent support for light of wavelength ληιη値, Rth (a hysteresis in the thickness direction of the transparent support for light having a wavelength of λιιηη.) 200813500 3. The optical compensation film of the invention of claim i, wherein the Rth ascending agent is as follows General formula (II) to (IV) A compound represented by any one of them: However, in the general formula (II) described below, the R1 2 each independently represents an aromatic ring having a substituent in at least one of an ortho, meta and para. Or a heterocyclic ring, in addition, 'X11 each independently represents a single bond or NR13-, wherein R 13 # S independently represents a hydrogen atom, a substituted or unsubstituted alkane a base, an alkenyl group, an aryl group or a heterocyclic group, and in the formula (III) shown below, R4, R5, R6, R7, R8 R$ each independently represent a hydrogen atom or a substituent, and In the general formula (IV) represented by F, (571 represents a nitrogen-containing aromatic heterocyclic ring, and Q 7 2 # ^ $ ^ represents an aromatic ring. General formula (Π) -1 3 5 - 200813500 The optical compensation film of claim 1, wherein the Rth ascending agent has two upper aromatic rings. The optical compensation film of claim 1, wherein the solution absorption spectrum of the Rth rising agent comprises a compound having a maximum absorption wavelength (Xmax) of at least 250 nm. 6. The optical compensation film according to claim 1, wherein the humidity-compensating agent having a hydrogen bonding group in at least one molecule is an optical compensation film according to claim 6, wherein Moisture-dependent 〗 〖The bio-modifier has an aromatic ring and satisfies the following formula (7): Hydrogen-bonding group in one molecule/molecular weight of the humidity-dependent improver&gt; 0.0 1 Formula (7) -1 3 6 - 200813500 8. The optical compensation film according to claim 1, wherein the transparent support system satisfies the following formulas (8) to (9): 2.0 ^SA + SB ^3.0 (8) 0 &lt; SB type (9 However, in the formulae (8) to (9), the degree of substitution of the sulfhydryl group of the hydrogen atom of the hydroxyl group in the cellulose substituted by the cellulose is SB, and the number of carbon atoms of the hydrogen atom of the hydroxyl group in the SB-substituted cellulose is 3 to 22 The degree of substitution of thiol. 9. A method of producing an optical compensation film, characterized in that the optical compensation film has a transparent support containing at least one Rth rising agent, and the transparent support is calculated by X-ray diffraction measurement to have the following formula (A) The defined degree of orientation P is 0.05 to 0.30, and includes a casting step of casting a polymer solution of a raw material containing a transparent support of at least one Rth rising agent on the belt; for drying by the casting step a drying step of the obtained film; and an extension step of extending the film at a temperature higher than a glass transition temperature of the transparent support by a temperature of +15 to +100 ° C after the film is peeled off by the tape: P = &lt; 3cos2P - 1 &gt; /2 Formula (A) However, in the formula (A), cos2pi(p) si η β d β / J* ( 0, π ) I ( β ) si η β d β, The angle between the incident surface of the X-ray incident on the β-ray and the direction in the plane of the transparent support is the diffraction at 2 Θ = 8° in the X-ray diffraction pattern measured by the angle β. strength. The method for producing an optical compensation film according to claim 9, wherein the drying step sets an average drying speed for a film having a volatile matter ratio of 10 to 100 -137 to 200813500 mass%, which is at least 1.2. Quality % / minute. 11. A polarizing plate, characterized in that the polarizing plate has a polarizing film and a pair of protective films for holding the polarizing film, at least one of the protective films having a transparent support body containing at least one Rth rising agent, and An optical compensation film having an orientation P defined by the following formula (A) and having an orientation P of 0.05 to 0.30 calculated by X-ray diffraction measurement of the transparent support: P = &lt; 3 cos1 2p - 1 &gt; /2 A) However, in the above formula (A), &lt;cos2p&gt;=J(0,Ti:) cos2pI(p) 8ΐηβάβ/ί ( 〇?π ) I ( β ) si η β d β » and in the formula, β system The angle formed by the incident surface of the incident X-ray and a direction in the plane of the transparent support is the diffraction intensity at 2 Θ = 8° in the X-ray diffraction pattern measured by the angle β. The polarizing plate of claim 2, wherein a coating layer exhibiting low moisture permeability is provided on at least one side of the protective film, and the coating layer is transparent at 60 ° C and 95% relative humidity. The humidity is 300 00 g/m 2 · day or less - 138 - 1 3 · A liquid crystal display device characterized by having a liquid crystal cell and a polarizing plate, the polarizing plate having a polarizing film, and a pair of protection for holding the polarizing film a film having at least one of the protective films having a transparent support containing at least one Rth rising agent, and the alignment P defined by the following formula (A) calculated by the X-ray diffraction measurement of the transparent support is 〇 · 〇 5 to 0·30 optical compensation film. Ρ = &lt; 3 cos2p - 1 &gt; /2 Formula (A) 2 However, in the formula (A), CcosWs^CO, ;!:)cos2pi(p) si η β d β / J ( 0,π ) I ( β ) sin β d β, 200813500 In addition, in this formula, the angle formed by the incident surface of the X-ray incident X-ray and the direction in the plane of the transparent support is measured by the angle β. The diffraction intensity at 2 Θ = 8° in the X-ray diffraction pattern. The liquid crystal display device of claim 13, wherein the liquid crystal cell system is in a VA mode, a 〇CB mode, or an IPS mode. -139-