JPH06265870A - Formation of color filter for liquid crystal display plate - Google Patents

Abstract

(57) [Abstract] [Purpose] Regarding the method for forming a color filter for a liquid crystal plate,
The purpose of the present invention is to improve the productivity by inexpensively forming a color filter that efficiently uses the backlight. A method for forming a color filter for a liquid crystal display panel, comprising forming a color pixel layer 163 on one surface of a glass substrate 161a to which a second polarizing plate is attached via a black mask 1622, and then forming the color pixel layer. A transparent resin 164c ″ is applied to the concave curved surface forming region of the top coat molded body 181 in which a concave curved surface 181a capable of molding a cylindrical convex lens is formed in a region corresponding to the region. The top coat molded body 181 provided with positioning means for 161a
The step of positioning and pressing the transparent resin-coated surface in correspondence with the color pixel layer 163 of the glass substrate 161a to transfer the transparent resin 164c ″ to the color pixel layer 163 is configured at least.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method of forming a color filter for a black matrix type liquid crystal display panel, and more particularly, to easily form a color filter which can efficiently use a backlight to improve productivity as a liquid crystal display panel. The present invention relates to an improved method for forming a color filter for a liquid crystal display panel.

In the field of personal computers, word processors, etc., conventional cathode ray tubes (CR) are used as information display means.
T) As an alternative to the display, a liquid crystal display device that can realize thinness, lightness, and low power consumption has been widely used.

In a liquid crystal display panel constituting such a liquid crystal display device, an STN (Supe) is constructed by forming a simple electrode line matrix with two transparent substrates and then enclosing a liquid crystal body.
r Twist Nematic) LCD panel and, for example, a transparent 13
A TFT formed by patterning an electrode line matrix where each intersection does not short-circuit on the plate and a thin film transistor connected to the X and Y electrode lines in the vicinity of each intersection and then enclosing a liquid crystal body between the transparent substrate and another transparent substrate ( Thin Film Transistor) Liquid crystal display boards have been put to practical use.

[0004]

2. Description of the Related Art FIG. 6 is a diagram for explaining a technical background, FIG. 6 is a diagram for explaining a general constitutional example as a liquid crystal display panel, FIG. Figure 7
FIG. 9 is a diagram showing an example of a conventional configuration of the relevant portion, and FIG. 9 is a diagram schematically illustrating an example of a method of forming the relevant portion of FIG.

Since FIGS. 7 to 9 show the case of the color liquid crystal display panel (hereinafter referred to as a liquid crystal display panel) in FIG. 6 as an example, the same members and parts as those in FIG. 6 are designated by the same symbols. A duplicate description will be omitted.

In FIG. 6, which is a sectional view of the completed liquid crystal display plate, the liquid crystal display plate 1 has a first polarizing plate 11 on the surface on the side of the backlight L _1.
Is attached to the first liquid crystal plate 12, and the second polarizing plate 15 is attached to the surface of the transmitted light L ₂ side, that is, the operator observation side surface.
Liquid crystal plate 16 and a liquid crystal body 13 enclosed between the first and second liquid crystal plates 12 and 16.

The first liquid crystal plate 12 is formed by forming a plurality of transparent electrodes 122 having a longitudinal direction in the thickness direction of the drawing on one inner surface (lower surface in the figure) of a transparent glass substrate 121, and A first alignment film 123 made of polyimide resin for adjusting the alignment of liquid crystal molecules is formed so as to cover the transparent electrode 122.

The second liquid crystal plate 16 is a transparent glass substrate 16
A black mask 162 made of a chrome (Cr) thin film or the like having a rectangular opening window 162a at a predetermined position described later on one inner surface (top surface in the figure) of 1 and a red (R) in the area of the opening window 162a.
A color pixel layer 163 in which color pixels 163a, 163b, 163c of green (G) and blue (B) are sequentially aligned and arranged is formed, and the entire surface of the color pixel layer 163 is a top coat as a transparent protective film. 16
After forming the color filter 165 by coating with 4, a plurality of transparent electrodes 166 having the longitudinal direction in the left-right direction of the paper are formed in parallel on the surface (upper surface in the figure), and a second alignment film 167 similar to the above is formed. Each transparent electrode 166 is covered so as to cover it.

Each opening window of the black mask 162
162a is located in the entire intersection area of the transparent electrodes 122 and 165 when the first liquid crystal plate 12 and the second liquid crystal plate 16 are positioned and opposed to each other, and the three color pixel 16
A pair of 3a, 163b and 163c is formed to form a substantially square pixel as the liquid crystal display panel 1.

Therefore, the opening windows 162a corresponding to the respective color pixels 163a, 163b, 163c and the respective color pixels are formed in a rectangular shape having a side ratio of about 1: 3. Therefore, the first and second liquid crystal plates 1 are so arranged that the first and second alignment films 123 and 166 face each other.
After positioning and fixing 2, 16 by a frame (not shown) with a predetermined gap maintained, the liquid crystal body 13 is sealed in the gap area by a sealing material (not shown) arranged around each liquid crystal plate 12, 16, and further each liquid crystal plate The first and second polarizing plates 11 and 15 are attached to both outer surfaces of 11, 16 so that the polarization directions thereof are orthogonal to each other to form the liquid crystal display panel 1.

In such a liquid crystal display plate 1, the backlight L ₁ becomes light polarized in the direction along the plane of the drawing by the first polarizing plate 11 and enters the liquid crystal body 13 via the first liquid crystal plate 12. Since the polarization direction of the liquid crystal body 13 whose alignment of liquid crystal molecules is arranged by the alignment films 123 and 166 is rotated by 90 degrees, for example, the thickness of the paper surface after passing through the color pixel formed in the opening window 162a of the black mask 162. The transmitted light L ₂ that passes through the second polarizing plate 15 whose direction is the polarization direction and eventually passes through the liquid crystal display panel 1 can be obtained.

On the other hand, when a required voltage is applied between the transparent electrodes 122 and 165, the area where the electrodes 122 and 165 face each other, in other words, the liquid crystal molecule alignment direction of the liquid crystal located in the entire intersection area of the electrodes 122 and 165, and thus the polarization direction, is applied. The second polarizing plate 15 for the light transmitted through the first liquid crystal plate 12 because it changes depending on the voltage
Can be changed.

This means that the amount of the transmitted light L ₂ reaching the observer located below the second polarizing plate 15 can be changed by the applied voltage. Therefore, the transparent electrode 12
Displaying the required characters and symbols in color by controlling the voltage applied between 2,165 for each intersection area, that is, for each color pixel arrangement position, to pass / block or reduce the light transmitted through the liquid crystal display panel 1. You can

On the other hand, as shown in FIG. 7 in which a portion relating to the present invention is extracted and enlarged, the light L ₁ ′ in the light passing through the liquid crystal body 13 which goes in the direction of the boundary line of each color pixel is located in the boundary line area. Since it is blocked by the black mask 162 of the color filter 165, for example, in the STN liquid crystal display panel, about 50-60%,
The TFT liquid crystal display panel has a drawback that the light transmission efficiency is lowered to about 40 to 50%.

Therefore, in order to compensate for this decrease in light transmission efficiency, a high-intensity backlight is used, a thin film is used as a color filter, and a microlens is attached to each color pixel of the color filter to change the direction of light. In many cases, means are taken.

In order to explain the microlens formation in this case, the surface of the color pixel layer 163 in FIG. 8 corresponds to the width of each color pixel 163a, 163b, 163c instead of the planar top coat 164 shown in FIG. A cylindrical convex lens-shaped top coat 164a having a width and a length in the thickness direction of the paper is adhered and formed,
The color filter 165a is configured.

Therefore, as described with reference to FIG. 6, a plurality of transparent electrodes 166 are formed in parallel on the surface of the second alignment film.
The state shown in the drawing can be obtained by forming a coating on the transparent electrodes 167 so as to cover the transparent electrodes 166.

[0018] Such 'in the liquid crystal display plate comprising a, L _1' in FIG. 7 second liquid crystal plate 16 of the top coat of light L ₁ 'towards each color pixel boundary direction thus black mask 162 as well 16
Since it is bent in the convex lens-shaped region of 4a and directed toward the opening window 162a, the light blocked by the black mask 162 can be reduced and the light transmittance as a liquid crystal display plate can be increased.

In FIG. 9 (1) illustrating the method of forming the top coat 164a in this case, the color pixel layer 163 described in FIG. 6 is formed on one surface of the glass substrate 161. Therefore, on the entire surface of the color pixel layer 163, a resin film 1 made of a thermoplastic resin (for example, phenol novolac-based resin) that softens temporarily at a constant temperature and time, but thermosets at a higher temperature 1
64b ″ with spinner etc. to a specified thickness (for example, about 1.9 μm)
Then, a mask 17 having an opening window 17a having an area slightly smaller than each color pixel is placed at a position corresponding to each color pixel 163a, 163b, 163c at a corresponding position on the resin film 164b ″. By patterning the resin film 164b ″ by a normal photolithography technique, it is possible to obtain the state (2) in which the protrusion 164b ′ made of the resin film is formed in the region corresponding to each color pixel.

Next, when the projection 164b 'is softened by heating to, for example, about 140.degree. C., the area is broken by the dangling force in the direction of arrow a and the surface tension in the direction of arrow b as indicated by the broken line c as shown in the enlarged view of the circle. Since it becomes a mountain shape as shown, it can be cured by continuing heating for about 30 minutes in that state.

Therefore, as shown in (3), the color filter 165b having the cylindrical convex lens-shaped top coat 164b as described with reference to FIG. 8 can be formed at the position corresponding to each color pixel.

[0022]

However, in the above-described method of forming a color filter, not only a complicated photolithography process is required to form the top coat but also variations in the shape of the cylindrical convex lens are likely to occur. Due to the difficulty of positioning with respect to each color pixel, light is often shielded by a black mask, and as a result, there is a problem that a reliable light shielding suppression effect cannot be expected.

[0023]

[Means for Solving the Problems] The above problems are
The first liquid crystal plate having a plurality of parallel transparent electrodes formed on the other surface of the transparent glass substrate having the polarizing plate attached thereto is covered with an alignment film, and the second polarizing plate is attached to one surface thereof. On the other surface of the transparent glass substrate, a color filter via a black mask and a second liquid crystal plate in which a plurality of parallel transparent electrodes and an alignment film are sequentially formed, the polarization direction of each polarizing plate and each transparent electrode. Are arranged so as to be orthogonal to each other and have a required gap so that the alignment films face each other, and then a liquid crystal is enclosed in the gap. A method of forming a color filter for a liquid crystal display panel, comprising: a black mask having an opening window aligned on one surface of a glass substrate to which a second polarizing plate is attached; Three
After forming a color pixel layer covering the entire surface of the black mask by sequentially forming color pixels of different types, the contact surface to the color pixel layer is larger than the color pixel layer forming area, and the contact surface of the corresponding contact surface is larger. A topcoat molded product in which a region corresponding to the color pixel layer forming region is formed into a concave curved surface such that a cylindrical convex lens can be molded in the region corresponding to each color pixel when the transparent resin is applied to the region. A step of applying a transparent resin to the concave curved surface forming area, and a transparent resin application surface of the top coat molded body having a positioning means with respect to the glass substrate on which the color pixel layer is formed, the color pixel layer of the glass substrate. And a step of transferring the transparent resin to the color pixel layer by positioning and pressing in accordance with the above method, and a method of forming a color filter for a liquid crystal display panel.

Further, a first liquid crystal plate having a plurality of parallel transparent electrodes formed on the other surface of the transparent glass substrate having the first polarizing plate attached to one surface thereof and covered with an alignment film, and one surface thereof. On the other surface of the transparent glass substrate to which the second polarizing plate is attached, a color filter through a black mask, a plurality of parallel transparent electrodes and an alignment film are sequentially formed on the other surface.
Color liquid crystal display in which the liquid crystal plate is placed with a required gap so that the polarization direction of each polarizing plate and each transparent electrode are orthogonal to each other and the alignment films face each other, and then the liquid crystal is sealed in the gap. A method for forming a color filter for a liquid crystal display panel, comprising a color pixel layer of a plate and a top coat covering the color pixel layer, comprising an opening window aligned on one surface of a glass substrate to which a second polarizing plate is attached. After forming a color pixel layer covering the entire surface of the black mask by sequentially patterning three types of color pixels of red, green and blue for each opening window of the formed black mask, the color pixel layer is applied to the color pixel layer. An area having a contact surface larger than the color pixel layer forming area and corresponding to the color pixel layer forming area of the corresponding contact surface corresponds to the vicinity including the boundary line of each color pixel when transparent resin is applied to the area. External light may diffuse into the A step of applying a transparent resin to the light diffusing means forming region of the top coat molded body formed into a shape capable of molding the means, and a positioning means for the glass substrate on which the color pixel layer is formed. Forming a color filter for a liquid crystal display panel, which comprises at least the step of positioning and pressing the transparent resin-coated surface of the top coat molded body in correspondence with the color pixel layer of the glass substrate to transfer the transparent resin to the color pixel layer. Achieved by the method.

[0025]

When the color filter is formed by attaching a top coat formed in the shape of a cylindrical convex lens with a molding jig to form a color filter, it is possible to eliminate variations in the shape of the top coat.

If the glass substrate on which the color pixel layer is formed and the molding jig are positioned by optical means using a CCD camera or the like, reliable alignment between the two can be realized. it can.

In view of the above, in the present invention, in the former case, the topcoat formed of a topcoat molded product having a cylindrical concave lens-like recess is pressure-transferred to the color pixel layer to suppress the shape variation as the topcoat, and the latter. With regard to the above, by aligning the positioning marks formed at the corresponding positions of the top coat molded body and the glass substrate optically, each color pixel on the glass substrate and thus the color pixel layer and the top coat on the top coat molded body Achieves accurate positioning between.

Therefore, the cylindrical convex lens can be accurately and easily formed on the color pixel layer without going through a complicated process such as the photolithographic technique which has been conventionally used, and the productivity as a color filter is improved. Can be expected.

[0029]

EXAMPLE FIG. 1, which is a sectional view similar to FIG. 8, is a principle diagram illustrating a method for forming a color filter according to the present invention.
1) shows the state before the transfer of the top coat, and (1-2) shows the state after the transfer of the top coat.

FIG. 2 is a diagram for explaining an example of the forming method of FIG. 1 together with positioning means, FIG. 3 is a diagram for explaining the second embodiment, FIG. 4 is a diagram for explaining the third embodiment, and FIG. FIG. 9 is a diagram illustrating a fourth embodiment.

In the drawings, the case of a liquid crystal display panel having the same configuration as that of FIG. 6 is taken as an example, and therefore common target members and parts are designated by the same reference numerals, and overlapping description will be omitted. Omit it.

In FIG. 1 (1-1), the glass substrate in FIG.
A color pixel layer 163 composed of the color pixels 163a, 163b, 163c described with reference to FIG. 6 is formed on one surface of a transparent glass substrate 161a similar to that of 161 by patterning.

On the other hand, at a corresponding position above the glass substrate, a top coat molded body 181 made of a metal plate is parallel to the substrate.
Are arranged. In this case, on the surface of the top coat molded body 181 on the glass substrate side, a cylindrical concave lens capable of molding the curved surface of the top coat 164b shown in FIG. 9 in a region corresponding to the color pixel layer forming region of the glass substrate 161a. The curved surface 181a is formed, and the sum of the thickness t ₁ of the color pixel layer 163 described in FIG. 6 and the thickness t ₂ of the top coat 164b excluding the curved surface, that is, " t ₁ +
A spacer 181b having a thickness equal to t ₂ ″ is patterned and formed in a “B” shape in plan view so as to form a peripheral wall.

Further, alignment marks 181c for ensuring alignment with the glass substrate 161 are patterned and formed at a plurality of locations outside the periphery of the spacer 181b with a thickness smaller than that of the spacer 181b.

The glass substrate 161a described above corresponds to the alignment mark 181c on the top coat molded body when the color pixel formation area and the curved surface area of the top coat molded body 181 are aligned. At this position, the alignment mark 167 having substantially the same shape as the mark 181c is formed by patterning, for example, simultaneously with the black mask 162. Therefore, by aligning the alignment marks 167 and 181c, the substrate 161a and the top coat molding The 181 and 181 can be easily positioned.

Therefore, after the transparent resin 164c ″ which is the same as the top coat of FIG. 6 and is an ultraviolet curable type is applied to the concave lens-shaped curved surface 181a region of the top coat molded body 181, the state shown in (1-1) is obtained. , The transparent resin 16 is moved to the substrate side as shown by an arrow A while aligning the respective alignment marks 167, 181c.
When 4c ″ is pressure-bonded to the surface of the color pixel layer 163, the convex lens-shaped top coat 164c ′ formed by the concave lens-shaped curved surface 181a is transferred to the color pixel surface.
After removing the top coat 164c ', the top coat 164c' is irradiated with ultraviolet rays as shown by an arrow B to form a color filter 165c (1) having a top coat 164c in the shape of a convex lens on each color pixel as in FIG.
-2) can be formed.

Therefore, as in the case of FIG. 8, the light L ₁ ′ directed to the black mask 162 is transmitted through the opening window of the black mask 162.
Since it can be directed to 162a, the light transmittance as a liquid crystal display panel can be increased.

In the method of forming the color filter 165d, since the distance between the glass substrate 161a and the top coat molding 181 is accurately regulated by the spacer 181b, the inclination between them and the deviation in the rotation direction are taken into consideration. There is no need, and there is an advantage that both can be matched only by three-dimensional relative movement.

In FIG. 2 showing a concrete example, the top coat molded body 181 of FIG. 1 which is turned upside down is fixed on a base 21, and a mechanism portion (not shown) above the corresponding top coat molded body 181 is fixed. A substrate mounting table 22 is provided which can move in a three-dimensional direction with respect to the base 21 while maintaining parallel to the base 21.

The substrate mounting table 22 has the alignment mark 16 on the glass substrate 161a shown in FIG.
A CCD camera 23 capable of observing the substrate 161a from above is disposed at a position corresponding to 7.

Therefore, the glass substrate of FIG.
161a is mounted so that the color pixel layer 163 is on the lower side, and the ultraviolet curable transparent resin 164d ″ is applied to the area of the concave lens-shaped curved surface 181a of the top coat molded body 181 to obtain the state of (2-1). To do.

Then, while the substrate mounting table 22 is moved back and forth and left and right, the alignment mark 167 of the substrate 161a and the alignment mark 181c of the top coat molded body 181 are aligned with each other by observation from the CCD camera 23 and the substrate is mounted as it is. Stand 22
Lower the color pixel layer 163 and the UV-curable transparent resin.
164d ″ is in contact with the transparent resin 164d ′, the transparent resin 164d ′ having a convex lens shape is used as the top coat 164d ′ to form the color pixel layer 163.
However, (2-2) shows the state at this time.

Therefore, as shown in (2-3), by irradiating with ultraviolet rays as shown by an arrow C while the substrate mounting table 22 is being raised, the color filter 165d having the convex lens-shaped top coat 164d on each color pixel ( It can be formed as 1-2).

FIG. 3 showing another embodiment of the color filter.
1 replaces the top coat molded body 181 described with reference to FIG. 1 with the top coat molded body 182 in which the linear V-shaped projections 182a are formed on the line corresponding to the black mask 162, and the spacer 182b formed on the top coat molded body 182. Is formed to have a thickness t ₃ smaller than that in the case of FIG.

Then, the alignment mark 168 formed on the glass substrate 161b applied to the top coat molded body 182 is formed.
Is a rectangular shape in plan view corresponding to the spacer 182b, and its thickness t ₄ is the same as the above-mentioned thickness “t ₁ + t ₂ ” and the spacer 182b.
Set the difference between the thickness t ₃ of ie _{"t 1 + t 2 -t 3} ".

Therefore, the UV-curable transparent resin 164 similar to that shown in FIG. 2 is formed on the surface of the top coat molding 182 on which the linear V-shaped projections are formed.
After applying e ″ in the state of (3-1), the spacer 182b and the alignment mark 168 of the glass substrate 161b are aligned with each other by moving the top coat molded body 182 forward, backward, leftward and rightward.
A color filter 165e covered with a top coat 164e having a V groove on the surface can be formed as in (3-2) by performing the same procedure as in.

Therefore, the light directed to the black mask 162
Since L ₁ ′ is bent in the V groove formed by the linear V-shaped protrusion 182a, the amount of light shielded by the black mask 162 can be reduced.

It is experimentally confirmed that the black mask can provide a light blocking effect by appropriately setting the size of the linear V-shaped protrusion 182a in accordance with the thickness and refractive index of the transparent resin 164e ". is doing.

Further, in the method of forming the color filter 165e, since the spacer 182b provided on the top coat molded body 182 is also used as the alignment mark, there is an advantage that the alignment mark on the molded body can be reduced.

In the figure, the glass substrate 161b and the top coat molded body 182 are positioned by bringing the alignment mark 168 on the glass substrate and the spacer 182b on the top coat molded body 182 into contact with each other. Obviously, the spacer and the alignment mark may be formed separately as described in 2.

FIG. 4 showing a third embodiment of the color filter.
Is a rough surface area 18 such as a corrugated line on the line corresponding to the black mask 162 in the top coat molded body 182 described in FIG.
This is a replacement for the topcoat molded body 183 which is 3a.

Then, after the ultraviolet curable transparent resin 164f ″ similar to that of FIG. 3 is applied to the rough surface area forming surface of the top coat molded body 183 to bring it to the state of (4-1), the top coat molded body 18
When the spacer 183b is aligned with the alignment mark 168 of the glass substrate 161b described with reference to FIG. 3 by moving the front, rear, left and right of 3, and the same procedure as in FIG. Color filter 165 covered with coat 164f ′
f can be formed as shown in (4-2).

Therefore, the light directed to the black mask 162
Since L ₁ ′ is diffused in the rough surface area, the amount of light shielded by the black mask 162 can be reduced. When the width of the black mask 162 is about 50 μm as in the above, the light shielding effect by the black mask can be obtained by setting the width w ₂ of the rough surface area provided on the top coat molded body 183 to about 50 μm. Has been confirmed experimentally.

FIG. 5 showing the fourth embodiment of the color filter is the top coat molded body 184 in which the rectangular groove 184a is formed on the line corresponding to the black mask 162 in the top coat molded body 183 explained in FIG. Instead of.

Therefore, the region of the rectangular groove 184a of the top coat molded body 184 was filled with a UV-curable transparent resin 164g 'containing a glass fiber having a light refracting property and a light scattering property, a plastic spacer, fine air particles and the like. After that, the transparent resin 164f ″ similar to that shown in FIG. 4 is applied to the state of (5-1), and the procedure similar to that shown in FIG.
Color filter covered with top coat 164f with 165
g can be formed as in (5-2).

Therefore, the light directed to the black mask 162
Since L ₁ ′ is diffused at the portion of the linear protrusion 164g, the amount of light shielded by the black mask 162 can be reduced. In the method of forming the color filter 165g, the size of the rectangular groove 184a of the top coat molded body 184 is 1.0 μm × 50 μm.
It has been experimentally confirmed that the light-shielding suppressing effect of the black mask 162 can be obtained by adjusting the amount to a certain degree.

[0057]

As described above, according to the present invention, there is provided a method of forming a color filter for a liquid crystal display panel, which facilitates the production of a color filter which can efficiently use a backlight, thereby improving the productivity of the liquid crystal display panel. Can be provided.

In the description of the present invention, the spacer provided on the topcoat molded body is in the shape of a square "B" in plan view surrounding the periphery of the topcoat forming area. However, the spacer is a straight line around the topcoat forming area. The same effect can be obtained even if the protrusions are provided at three or more places which are not above.

Further, in the description of the present invention, the case where the ultraviolet-curable transparent resin is applied to the top coat molded body is taken as an example, but it is obvious that the same curing can be obtained even with the ordinary heat-curable transparent resin.

[Brief description of drawings]

FIG. 1 is a principle diagram illustrating a method for forming a color filter according to the present invention.

FIG. 2 is a diagram illustrating an example of the forming method of FIG. 1 together with a positioning unit.

FIG. 3 is a diagram illustrating a second embodiment.

FIG. 4 is a diagram illustrating a third embodiment.

FIG. 5 is a diagram illustrating a fourth embodiment.

FIG. 6 is a diagram illustrating a general configuration example of a liquid crystal display panel.

FIG. 7 is a diagram for explaining a portion related to the present invention by extracting and enlarging it.

FIG. 8 is a diagram showing an example of a conventional configuration of a relevant part of FIG.

FIG. 9 is a diagram schematically illustrating an example of a method of forming the corresponding portion in FIG.

[Explanation of symbols]

21 base 22 substrate mounting table 23 CCD camera 161a, 161b glass substrate 162 black mask 162a opening window 163 color pixel layers 163a, 163b, 163c
Color pixel 164c, 164d, 164e, 164f, 164g Top coat 164c′164c ″ to 164g ′ UV curable transparent resin (transparent resin) 165c, 165d, 165e, 165f, 165g Color filter 167 Alignment mark 168 Alignment mark 181,182,183,184 Top Coated molded body 181a Concave lens-shaped curved surface 181b, 182b, 183b Spacer 181c Alignment mark 182a Linear V-shaped projection 183a Rough surface area 184a Square groove

Claims (7)

[Claims] 1. A first liquid crystal plate having a plurality of parallel transparent electrodes formed on the other surface of a transparent glass substrate having a first polarizing plate attached to one surface thereof and covered with an alignment film, and one surface thereof. A second liquid crystal plate in which a color filter through a black mask and a plurality of parallel transparent electrodes and an alignment film are sequentially formed on the other surface of the transparent glass substrate to which the second polarizing plate is attached, A color pixel layer of a color liquid crystal display panel in which a liquid crystal body is sealed in the gaps after the necessary gaps are arranged so that the polarization direction of the polarizing plate and each transparent electrode are orthogonal to each other and the alignment films face each other; A method of forming a color filter for a liquid crystal display panel, which comprises a top coat to cover the same, the method comprising forming an opening window (162a) aligned on one surface of a glass substrate (161a) to which a second polarizing plate is attached. Opening the black mask (162) Red in another window, green, blue three kinds of color pixels (163
a, 163b, 163c) are sequentially patterned to form the black mask
After forming a color pixel layer (163) covering the entire surface of (162), the contact surface to the color pixel layer (163) is larger than the color pixel layer forming area, and the color pixel layer is formed on the corresponding contact surface. When the transparent resin is applied to the area, the area corresponding to the area becomes
63a, 163b, 163c) is formed in a concave curved surface (181a) such that a cylindrical convex lens can be molded in a region corresponding to the transparent resin (164c ″), And the top coat molded body (181) provided with a positioning means for the glass substrate (161a) on which the color pixel layer (163) is formed.
The transparent resin coated surface of the glass substrate (161a) is coated with the color pixel layer (16
Positioning and pressing corresponding to 3), and the above transparent resin (164c ″)
And a step of transferring to the color pixel layer (163), and a method for forming a color filter for a liquid crystal display panel. 2. A first liquid crystal plate having a plurality of parallel transparent electrodes formed on the other surface of a transparent glass substrate having a first polarizing plate attached to one surface thereof and covered with an alignment film, and one surface thereof. A second liquid crystal plate in which a color filter through a black mask and a plurality of parallel transparent electrodes and an alignment film are sequentially formed on the other surface of the transparent glass substrate to which the second polarizing plate is attached, A color pixel layer of a color liquid crystal display panel in which a liquid crystal body is sealed in the gaps after the necessary gaps are arranged so that the polarization direction of the polarizing plate and each transparent electrode are orthogonal to each other and the alignment films face each other; A method of forming a color filter for a liquid crystal display panel, which comprises a top coat to cover the same, the method comprising forming an opening window (162a) aligned on one surface of a glass substrate (161a) to which a second polarizing plate is attached. Opening the black mask (162) Red in another window, green, blue three kinds of color pixels (163
a, 163b, 163c) are sequentially patterned to form the black mask
After forming a color pixel layer (163) covering the entire surface of (162), the contact surface to the color pixel layer (163) is larger than the color pixel layer forming area, and the color pixel layer is formed on the corresponding contact surface. When the transparent resin is applied to the area, the area corresponding to the area becomes
(63a, 163b, 163c) forming a light diffusion means of a top coat molded body formed in a shape capable of molding a means capable of diffusing light from the outside in a line area corresponding to the vicinity including the boundary line A step of applying a transparent resin to the area, and positioning and pressing the transparent resin-coated surface of the top coat molded body having a positioning means for the glass substrate on which the color pixel layer is formed, in correspondence with the color pixel layer of the glass substrate. And a step of transferring the transparent resin to a color pixel layer, and a method for forming a color filter for a liquid crystal display panel. 3. The positioning means for positioning the topcoat molded body with respect to the glass substrate on which the color pixel layer according to claim 1 or 2 is formed, the concave curved surface forming area or the diffusion means forming area of the topcoat molded body being formed. A spacer (181b) of a predetermined thickness surrounded by the periphery, alignment marks (167) provided at a plurality of locations outside the color pixel layer forming region of the glass substrate, and a top coat molded body (181) corresponding to the marks A method of forming a color filter for a liquid crystal display panel, characterized in that the color filter for the liquid crystal display plate is configured to match the alignment mark (181c) provided on the. 4. A positioning means for positioning the top coat molded body with respect to the glass substrate on which the color pixel layer according to claim 1 or 2 is formed, a concave curved surface forming area or a diffusion means forming area of the top coat molding body. A liquid crystal display panel characterized by comprising a spacer (182b) having a predetermined thickness, which is surrounded by the spacer (182b), and an alignment mark (168) provided at a position corresponding to the spacer (182b) of the glass substrate. For forming color filter for automobile. 5. A method for forming a color filter for a liquid crystal display plate, characterized in that the light diffusing means provided in the top coat molding according to claim 2 is constituted by linear V-shaped projections (182a). 6. A method for forming a color filter for a liquid crystal display panel, characterized in that the light diffusing means provided in the top coat molding according to claim 2 is constituted by a corrugated rough surface area (183a). 7. A color for a liquid crystal display panel, characterized in that the light diffusing means provided in the top coat molding according to claim 2 is composed of a rectangular groove (184a) filled with a photorefractive resin (164g '). How to form a filter.