KR101299184B1 - 3 dimensional stereography image displayable system - Google Patents

Abstract

The present invention provides a liquid crystal panel comprising a plurality of pixel lines defined as a plurality of pixel regions connected to the same gate line; First and second polarizing plates respectively provided on the outer and outer sides of the liquid crystal panel; A first patterned retarder provided on an outer surface of the second polarizing plate; It provides a 3D image realization system including a second patterned retarder provided on the outer surface of the first patterned retarder via an auxiliary substrate.

Description

3D image rendering system {3 dimensional stereography image displayable system}

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a 3D display implementation system, and more particularly, to a 3D image implementation system in which up and down viewing angles are improved without decreasing aperture ratio, and vertical crosstalk is reduced.

In general, a liquid crystal display device is composed of two opposite electrodes and a liquid crystal layer formed therebetween. The liquid crystal molecules of the liquid crystal layer are driven by an electric field generated by applying a voltage to the two electrodes.

Liquid crystal molecules have polarization property and optical anisotropy. Polarization property means that when liquid crystal molecules are placed in an electric field, charges in the liquid crystal molecules are attracted to both sides of the liquid crystal molecules, and the direction of molecular arrangement changes according to the electric field. Anisotropy refers to changing the path or polarization state of the emitted light differently depending on the incident direction or the polarization state of the incident light due to the elongated structure of the liquid crystal molecules and the aforementioned molecular arrangement direction.

Accordingly, the liquid crystal layer exhibits a difference in transmittance due to the voltage applied to the two electrodes, and the 2D image can be displayed by varying the difference between the pixels.

Meanwhile, in recent years, a liquid crystal display device capable of realizing a 3D image in response to an increase in demands of users for a liquid crystal display device capable of realizing a 3D image, that is, a liquid crystal display device capable of realizing a 3D image, has been developed.

Generally, stereoscopic images expressing 3D are made by the principle of stereoscopic vision through two eyes. By using the binocular disparity which appears because the time difference of the two eyes, that is, A liquid crystal display device capable of displaying stereoscopic images has been proposed.

The 3D images will be described in more detail. The left and right eyes viewing the LCD display different 2D images. When the two images are transmitted to the brain through the retina, the brain fuses them exactly to each other, The depth and the sense of reality of the image are reproduced. Such a phenomenon is usually referred to as stereography.

Techniques presented for displaying a 3D stereoscopic image in a device having a 2D image display such as a liquid crystal display device include a stereoscopic image display by special glasses, a non-stereoscopic stereoscopic image display, and a holographic display method.

In the stereoscopic image display system using the special glasses, the polarizing glasses system using the vibration direction or the rotation direction of the polarized light, the time division spectacle system alternately presenting the right and left images while switching them, and the light of different brightness in the left / Which is the method of concentration difference.

In the non-eye-hardened stereoscopic image display system, a parallax barrier system in which an image can be separated and observed through a vertical grid-like aperture in front of each image corresponding to the left / right eye, A lenticular method using a lenticular plate in which a cylindrical lens is arranged in a stripe manner, and an integral photography method using a fly-eye lens plate.

Of these, 3D image display apparatuses using special glasses are most widely used.

1 is a view showing a 3D image implementation system using a conventional special glasses.

As shown in the figure, a 3D image realization system using conventional special glasses includes a liquid crystal display device 10 for displaying an image, a pattern drifter 40 attached to an outer surface of the liquid crystal display device 10, , A transparent auxiliary substrate provided on the outer surface of the patterned retarder, and a polarizing glasses (45) which selectively transmit an image passing through the pattern drifter (40) from the liquid crystal display (10) ).

First, the liquid crystal display device 10 includes an array substrate 15, a color filter substrate 20, a liquid crystal layer interposed between the two substrates 15 and 20, and the two substrates 15, 20) The first and second polarizing plates 25 and 30 attached to the outer side surfaces of the first and second polarizing plates 25 and 30 are not shown in the figure, but the outer side surfaces of the first polarizing plate 25 include a backlight unit (not shown). At this time, the first and second polarizing plates 25 and 30 are configured such that their transmission axes cross each other at right angles.

On the other hand, the patterned retarder 40 provided on the outer surface of the second polarizing plate 30 attached to the outer surface of the color filter substrate 20 is a pixel located in the odd pixel line (OL) in the horizontal direction In response to the area P, the light emitted from the pixel area P through the second polarizing plate 30 is in a right circular polarization state, and corresponds to the pixel area P positioned in the even-numbered pixel line EL. In this case, the birefringent material whose internal phase is changed so as to make the left circularly polarized state is alternately patterned for each pixel region P line to have different directions.

Therefore, according to the structure of the above-described conventional 3D image forming system 1, after the liquid crystal display device 10 passes through the pattern driver 40, The right circularly polarized light is emitted from the region P and the left circularly polarized light is emitted from the pixel region P located in the even-numbered pixel line EL.

At this time, for the pixel region located in the odd-numbered pixel line OL in the liquid crystal display device 10, the left-eye image signal incident on the left eye of the user is divided into a pixel region P, the left-eye image signal, which is selectively right-circularly polarized through the polarizing glasses 45, is incident on the left eye of the user, and the right-eye image signal that is left- Thereby making it possible to realize a 3D image by making the light incident on the right eye of the user.

FIG. 2 is a cross-sectional view of a part of a conventional 3D image realization system.

As shown in the figure, the conventional 3D image implementing system 1 having the above-described configuration is provided with the pattern driver 40 for generating the right circularly polarized state for each of the pixel lines OL and EL of the liquid crystal display device 10 (Hereinafter, referred to as a first polarization modulation area A1) and a part for making a left-handed polarization state (hereinafter referred to as a second polarization modulation area A2) are alternately arranged, and the front face of the liquid crystal display device 10 is referred to as a reference A vertical crosstalk due to the mixture of the left eye image and the right eye image occurs and the quality of the 3D image display is deteriorated when the viewing angle range beyond which the 3D image is viewed is determined It is true.

That is, as shown in the drawing as an example, the left eye image signal from the odd-numbered pixel line OL of the liquid crystal display device 10 is transferred to the first polarization modulation area A1 of the patterned retarder 40. The left circularly polarized light is incident to the second polarization modulation area A2 without being incident, and the left circularly polarized light is incident to the right eye lens 45b of the polarizing glasses that selectively receives only the left circularly polarized light. There is a problem that the quality of 3D video display is reduced by mixing.

In order to solve this problem, the black matrix 21 is provided at the boundary between each pixel line OL and EL of the liquid crystal display 10 more precisely, so that image mixing is prevented from occurring. Increasing the width of the black matrix 21 causes a decrease in the aperture ratio, thereby limiting the generation of 3D vertical crosstalk through the black matrix width.

Accordingly, the present invention has been made to solve the above problems, to provide a 3D image realization system that can extend the viewing angle range that can be viewed 3D image without lowering the aperture ratio, and can suppress the 3D vertical crosstalk phenomenon. The purpose.

In order to achieve the above object, a 3D image realization system according to an exemplary embodiment of the present invention includes a plurality of pixel lines defined as a plurality of pixel regions connected to a single gate line, and is provided at a boundary between adjacent pixel lines. A liquid crystal panel having a black matrix having a first width corresponding thereto; First and second polarizing plates respectively provided on the outer and outer sides of the liquid crystal panel; A first patterned retarder provided on an outer surface of the second polarizing plate, the first patterned pattern having a first optical axis and the second patterned pattern having a second optical axis alternately disposed; A second patterned pattern disposed on an outer surface of the first patterned retarder via an auxiliary substrate, wherein a third patterned pattern having a third optical axis and a fourth patterned pattern having a fourth optical axis are alternately disposed; And a retarder, wherein the first patterned pattern is formed corresponding to the pixel line, and the second patterned pattern completely overlaps with the black matrix and has a second width less than or equal to the first width. And features formed.

In this case, the first patterned retarder phase-delays the light passing therethrough by λ / 2, and the second patterned retarder phase-delays the light passing therethrough by λ / 4.

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The third and fourth patterned patterns may be formed to correspond to the pixel lines, and the boundary between the third and fourth patterned patterns adjacent to each other may be positioned to correspond to the second patterned pattern. .

The first and second optical axes have the same absolute value and have a difference of 45 degrees in magnitude, and the third and fourth optical axes have a difference of 90 degrees.

In addition, the liquid crystal panel displays left eye and right eye or right eye and left eye images for odd-numbered and even-numbered pixel lines, respectively, and the light emitted through the odd-numbered pixel lines is formed of the first patterned pattern and the first-numbered pixel line. The light passes through the third patterned pattern and becomes the light of the first circularly polarized light or the right circularly polarized light, and the light emitted through the even-numbered pixel line passes through the first patterned pattern and the fourth patterned pattern to pass the third pattern. The light of the right circularly polarized light or the second circularly polarized light having the opposite characteristics to the light passing through the light pattern, and the light emitted through the odd-numbered pixel lines passes through the second patterned pattern and the fourth patterned pattern. Become light of a second state, and light emitted through the even-numbered pixel lines passes through the second patterned pattern and the third patterned pattern to become light of the first state. The.

The liquid crystal panel includes an array substrate having a plurality of pixel regions for each pixel line, a color filter substrate having a color filter layer corresponding to each pixel region, and interposed between the array substrate and the color filter substrate. And a black matrix having a first width corresponding to a boundary of the pixel line on the color filter substrate, wherein the auxiliary substrate is 40% to 50% of a thickness of the color filter substrate. It is characterized by having a thickness of.

In addition, a backlight unit is provided on an outer surface of the first polarizing plate and allows left and right eye lenses to selectively transmit the light having the first and second states, which have passed through the second patterned retarder, respectively. It characterized in that it comprises a polarizing glasses.

The 3D image realization system according to the present invention includes two patterned retarders, which improves the upper and lower viewing angle range for 3D viewing, and further suppresses the mixing of the left and right eye video signals without expanding the black matrix, thereby opening the aperture ratio. There is an effect of improving the 3D image display quality without deterioration.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 illustrates a 3D image implementation system using conventional special glasses. FIG.
2 is a cross-sectional view of a portion of a conventional 3D imaging system;
Figure 3 illustrates a 3D image implementation system of the present invention.
4 is a cross-sectional view of a portion of a 3D image implementation system in accordance with an embodiment of the present invention.
5 is an enlarged view of some components of a 3D image realization system according to an embodiment of the present invention;
FIG. 6 is a graph illustrating a simulation result of a viewing angle range in which vertical crosstalk occurs within 10% while changing the width of a second patterned pattern in a 3D image realization system according to an exemplary embodiment of the present invention. FIG.

Hereinafter, with reference to the drawings will be described in detail the configuration of the 3D image implementation system according to the present invention.

3 is a diagram illustrating a 3D image implementing system according to an exemplary embodiment of the present invention, and FIG. 4 is a cross-sectional view of a part of a 3D image implementing system according to an exemplary embodiment of the present invention. It was.

 3D image realization system 100 according to an embodiment of the present invention is a liquid crystal display device 110 for displaying an image having a first and a second polarizing plate (125, 130) on both outer surfaces largely, and the liquid crystal display device A first patterned retarder 140 provided on the outer surface of the second polarizing plate 130 of 110 and an auxiliary substrate (not shown) provided on the outer surface of the first patterned retarder 140. And a second patterned retarder 150 and polarizing glasses 145 for selectively transmitting right circularly polarized light and left circularly polarized light.

The liquid crystal display device 110 includes a liquid crystal panel 112 composed of a liquid crystal layer (not shown) interposed between the array substrate 115 and the color filter substrate 120 and between the two substrates 115 and 120, First and second polarizers 125 and 130 attached to the outer surface of the liquid crystal panel 112 and a backlight unit (not shown) on the outer surface of the first polarizer 125, As shown in FIG.

In the liquid crystal panel 112, gate and data lines 116 and 118 are formed on the array substrate 115 to define a plurality of pixel regions P and are connected to the two lines 116 and 118 A thin film transistor Tr is provided corresponding to each pixel region P and each pixel region P is connected to the thin film transistor Tr and has a pixel electrode 119.

In addition, the color filter substrate 120 includes a black matrix 121 corresponding to the boundary of each pixel region P, and a color filter layer including red, green, and blue color filter patterns sequentially corresponding to each pixel region P. FIG. And a common electrode (not shown) covering the color filter layer 122. In this case, the black matrix 121 that suppresses the transmission of light has a first width at the boundary of the color filter pattern of red, green, and blue, and more precisely, at the boundary of each pixel region P. It is provided.

The internal structure of the liquid crystal panel 112 including such a component may be variously modified according to the driving mode of the liquid crystal display device 110.

That is, in the exemplary embodiment of the present invention, although the common electrode (not shown) is formed on the front surface of the color filter substrate 120 as an example, the common electrode (not shown) provided on the front surface of the color filter substrate 120 is shown. O) may be omitted in the color filter substrate 120 and may be formed to alternate with the pixel electrode 119 in each pixel region P of the array substrate 115. In this case, the pixel electrode and the common electrode alternating in each pixel region P form a bar shape, and the liquid crystal panel having such a structure has a lateral electric field .

As another example, the common electrode may be formed on the entire surface of the display substrate of the array substrate so as to have a bar-shaped opening corresponding to each pixel region. In this case, The liquid crystal panel having such a configuration is driven by a fringe field generated by a common electrode having vertically positioned pixel electrodes and a plurality of bar-shaped openings.

A plurality of pixel regions P connected to the same gate line 116 among a plurality of pixel regions P included in the liquid crystal panel 112 are defined as pixel lines OL and EL, In an embodiment of the present invention, a video signal applied to the left eye of the user for realizing a 3D image among the plurality of pixel lines OL and EL is represented through an odd-numbered pixel line OL, And the signal is expressed through the even-numbered pixel line EL.

In this case, the black matrix 121 is provided between the adjacent pixel lines OL and EL to form a boundary between the pixel lines OL and EL.

Meanwhile, in the exemplary embodiment of the present invention, the odd-numbered pixel line OL is described as displaying the left eye image, and the even-numbered pixel line EL is displaying the right eye image, but the odd-numbered pixel line OL is the right eye image. It will be apparent that the even-numbered pixel line EL may display the left eye image.

The first and second polarizers 125 and 130 are configured so that their transmission axes cross each other with respect to the liquid crystal panel 112 having such a configuration. (Not shown) to form a liquid crystal display device 110.

On the other hand, as one of the most characteristic configuration in the 3D image implementation system 101 according to an embodiment of the present invention, the auxiliary substrate of a transparent material having a predetermined thickness on the outer surface of the second polarizing plate 130 (not shown) The first and second patterned retarders 140 and 150 are provided on the outer surface of the auxiliary substrate (not shown), respectively.

In this case, the first patterned retarder 140 provided adjacent to the second polarizing plate 130 has a characteristic of retarding the light emitted from the liquid crystal display device 110 by λ / 2. In addition, the second patterned retarder 150 facing the first patterned retarder 140 and the auxiliary substrate (not shown) may have a characteristic of delaying phase by λ / 4.

In addition, the first patterned retarder 140 is positioned adjacent to the second polarizing plate 130 and delays a phase of λ / 2. The odd and even numbers of the liquid crystal panel 112 are included in the first patterned retarder 140. In response to the pixel lines OL and EL, a first patterned pattern 141 having a first width and an optical axis having a first angle in a form overlapping with the pixel lines OL and EL is provided.

In addition, the first patterned retarder 140 and the first patterned pattern 141 together with the first width in the form of completely overlapping with each pixel line (OL, EL) of the liquid crystal panel 112. A second second between the first patterned pattern 141 having a width equal to or smaller than the width of the black matrix 121 corresponding to the black matrix 121 formed at the boundary between the pixel lines OL and EL; A second patterned pattern 142 having a width and having an optical axis of a second angle is provided. In this case, the first patterned pattern 141 and the second patterned pattern 142 may be alternately arranged.

The first and second angles, which are angles of the optical axes of the first and second patterned patterns 141 and 142, have the same absolute value, have opposite signs, and have a difference of 45 degrees. That is, when the first angle is, for example, +22.5 degrees, the second angle is -22.5 degrees.

Meanwhile, the second patterned retarder 150 is disposed on the liquid crystal panel 112 to face the first patterned retarder 140 and the auxiliary substrate to delay the phase of λ / 4. A third patterned pattern 151 having an optical axis of a third angle is provided to correspond to the odd-numbered pixel line OL, and corresponds to the even-numbered pixel line EL provided in the liquid crystal panel 112. A thirty-fourth patterned pattern 152 having an optical axis of a fourth angle is provided.

At this time, the third angle and the fourth angle is characterized in that the difference of 90 degrees. For example, the third angle may be 90 degrees, and the fourth angle may be 0 degrees.

The boundary between the third and fourth patterned patterns 151 and 152 adjacent to each other provided in the second patterned retarder 150 is a second patterned pattern provided in the first patterned retarder 140. It is characterized in that it is positioned so as to overlap with (142), preferably located in the center portion of the second patterned pattern (142).

In the 3D image realization system 101 according to the exemplary embodiment of the present invention having the above configuration, as shown in the drawing, the light from the odd-numbered pixel lines OL is generated by the second patterned retarder 150. Even if it passes through the patterned pattern 152, the left circularly polarized state is not maintained, and thus the left circularly polarized state is maintained to the left eye lens 145a of the polarizing glasses 145 to selectively transmit only the right circularly polarized light. Since the incident and left circularly polarized light is not transmitted through the right eye lens 145b of the polarizing glasses 145 to selectively transmit, the left eye image does not reach the user's eyes.

In the case of the first patterned retarder 140 generating the phase retardation of λ / 2, the first patterned retarder 140 serves to change the optical axis while maintaining the linearly polarized light with respect to the linearly polarized light passing through the liquid crystal display 110. The light passing through the first patterned retarder 140 has a first linearly polarized state, and the light passing through the second patterned retarder 150 has a second linearly polarized state.

The first and second linearly polarized light passes through the second patterned retarder 150 that delays the phase by λ / 2, respectively, and forms a right or left circularly polarized state. When the light passes through the third patterned pattern 151 of the second patterned retarder 150 having an optical axis of 90 degrees, the light is circularly polarized, and the 34th patterned pattern 152 having an optical axis of 0 degrees is formed. Passing) results in a left circularly polarized state.

In addition, when the light having the second linearly polarized state passes through the third patterned pattern 151 of the second patterned retarder 150 having the optical axis of 90 degrees, the light is left circularly polarized. Passing through the thirty-fourth patterned pattern 152 having an optical axis forms a circularly polarized state.

The light emitted horizontally from the odd-numbered pixel line OL of the liquid crystal panel 112 due to the change in the polarization characteristic of the light and the arrangement of the components passes through the first patterned pattern 141 and then the third patterned pattern. By passing through 151, the light becomes always circularly polarized light, and the light emitted horizontally from the even-numbered pixel line EL passes through the first patterned pattern 141 and then passes through the fourth patterned pattern 152. By doing so, it always becomes left circularly polarized light.

Light horizontally emitted from the liquid crystal panel 112 does not reach the second patterned pattern 142 due to the arrangement characteristic of the second patterned pattern 142 configured to completely overlap the black matrix 121.

However, as shown in the drawing, some of the light traveling in the upward direction from the odd-numbered pixel lines OL pass through the second patterned pattern 142, and the light is generated by the third patterned pattern 151. No, the light is incident on the fourth patterned pattern 152. In this case, the left pattern is not circularly polarized due to the optical axis of the second patterned pattern 142.

Therefore, since the right circularly polarized light is selectively incident only to the left eye lens 145a of the polarizing glasses 145, the user may view a normal 3D image without vertical crosstalk.

That is, in the 3D image realization system according to the embodiment of the present invention, the fourth patterned pattern in which the light from the odd-numbered pixel line OL transmits the light from the even-numbered pixel line EL is transmitted and has a left circularly polarized state. Even if it passes through (152), the left circularly polarized state is not achieved but the right circularly polarized state prevents mixing of the left eye image signal and the right eye image signal, thereby enabling the viewing of a high quality 3D image with almost no vertical crosstalk. Is characteristic.

Therefore, the 3D image implementation system 101 according to the embodiment of the present invention having such a configuration is compared with the conventional 3D image implementation system (1 in FIG. 1) having one patterned retarder having a phase delay of λ / 4. By suppressing the mixing of the left eye and right eye images, the vertical crosstalk phenomenon is reduced, thereby improving 3D display quality.

FIG. 5 is an enlarged view of some components of a 3D image realization system according to an exemplary embodiment of the present invention, focusing on components that affect an angle at which vertical crosstalk starts and an angle at which vertical crosstalk occurs. Figure is shown.

In the 3D image realization system, the vertical viewing angle range for viewing 3D images having good display quality is generally defined as an angle range where 3D vertical crosstalk is less than 10%. The upper and lower levels are 11 degrees to 14 degrees, respectively.

In the 3D image realization system 101 according to an exemplary embodiment of the present invention, 3D vertical crosstalk may include the color filter substrate 120, the second polarizer 130, and the first patterned retarder 140. The second patterned pattern 142 and the pixel lines OL and EL of the liquid crystal panel 112 and the black matrix 121 are associated with each other.

That is, in the 3D image realization system 101 according to the embodiment of the present invention, the angle θc at which 3D vertical crosstalk generation starts is

 θc = Aarctan ((B / 2 + W / 2) / (G + A))

(B: width of the black matrix 121, W: width of the second patterned pattern 142, G: thickness of the color filter substrate 120, A: thickness of the second polarizing plate 130)

Is defined.

3D image realization system 101 according to an embodiment of the present invention is the width (B) of the black matrix 121, the thickness (G) of the color filter substrate 120 and the thickness (A) of the second polarizing plate 130 Is equal to the conventional value, the angle at which vertical crosstalk is started can be adjusted to some extent by the width W of the second patterned pattern 142, thereby adjusting the viewing angle range of the 3D image viewing angle compared with the conventional art. Can be improved.

FIG. 6 is a graph illustrating a simulation result of a viewing angle range in which a vertical crosstalk occurs within 10% while changing the width of a second patterned pattern in a 3D image realization system according to an exemplary embodiment of the present invention. And a viewing angle range in which vertical crosstalk of a conventional 3D imaging system with a patterned litter is generated.

As shown, the first and second patterned patterns (141, 142 of FIG. 5) are provided and have a phase delay of [lambda] / 4 without a first patterned retarder (140 of FIG. 5) that delays the phase of [lambda] / 2. In the comparative example having one patterned retarder (40 in FIG. 1), it can be seen that the maximum viewing angle at which 3D vertical crosstalk is generated within 10% is about 16 degrees.

On the other hand, in the 3D image implementation system (101 of FIG. 1) according to an embodiment of the present invention, the second patterned pattern provided in the first patterned retarder (140 of FIG. 5) for delaying the phase of λ / 2 The width (W of FIG. 5) of 142 is 70 μm or larger and correspondingly smaller than the width (B of FIG. 5) of the black matrix (121 of FIG. 5) included in the liquid crystal panel (112 of FIG. 5). It can be seen that the maximum viewing angle at which 3D vertical crosstalk is generated within 10% is in a range of about 20 degrees, which is larger than 14 degrees.

In the graph, when the width (W of FIG. 5) of the second patterned pattern (142 of FIG. 5) is 70 µm, the maximum size of the vertical viewing angle for viewing 3D images is about 16 degrees, and is 80 µm. In this case, it can be seen that it is about 18 degrees, in case of 90㎛, it is about 19 degrees, and in case of 100㎛.

Therefore, the 3D image realization system 101 (FIG. 5) according to the embodiment of the present invention, as can be seen through the simulation, the second patterned pattern (140 of FIG. 5) of the first patterned retarder (140 of FIG. 5). 5 W to have a width equal to or greater than 70 μm while having a width smaller than or equal to the width of the black matrix (121 in FIG. 5) provided in the liquid crystal panel (112 in FIG. 4). In this case, the vertical viewing angle for viewing the 3D image is improved.

In the graph, when the width (W in FIG. 5) of the second patterned pattern (142 in FIG. 5) is 70 µm or more, the vertical viewing angle is improved compared to the comparative example, but this is the width of the pixel line, that is, the pixel area. It is understood that when the pitch size becomes smaller, the second patterned pattern (142 of FIG. 5) has a viewing angle size larger than about 16 degrees even when the width (W of FIG. 5) has a value smaller than 70 μm. Could.

In this case, in the 3D image realization system 101 of FIG. 5, two patterned retarders 140 and 150 of FIG. 5 are provided, thereby providing the first patterned retarder of FIG. 5. 140) and the thickness of the auxiliary substrate (160 in FIG. 5) between the second patterned retarder (150 in FIG. 5) may also affect the 3D image quality and experimentally, the thickness of the color filter substrate of the liquid crystal display device. It can be seen that having a thickness of about 40% to 60% of is preferable in view of reducing the effect of 3D vertical crosstalk.

Meanwhile, referring to FIGS. 4 and 5, in the 3D image realization system 101 according to an exemplary embodiment of the present invention, the left eye image signal from the odd-numbered pixel line OL is finally polarized to the right, so that the user's left eye Although it is selectively incident on the right eye, the right eye image signal from the even-numbered pixel line EL is finally circularly polarized and selectively incident on the user's right eye, thereby showing a 3D image. It is obvious that it can be modified.

That is, the image signal emitted by the odd-numbered pixel lines OL may be configured to selectively enter the right eye of the user, and the left circularly polarized light may be used to selectively enter the left and right eye images into the eyes of the user. It is obvious that the right circular polarization state can be selectively changed.

In the first patterned retarder 140, the first patterned pattern 141 has an optical axis of 22.5 degrees and the second patterned pattern 142 of -22.5 degrees. In the second patterned retarder 150, the third patterned pattern 151 has an optical axis of 0 degrees and an optical axis of the third patterned pattern 151 of 90 degrees, as an example. It's okay.

In the first patterned retarder 140, the first and second patterned patterns 141 and 142 maintain linearly polarized states, respectively, and become an element causing only an optical axis change. Since the third and fourth patterned patterns 151 and 152 in 150 are elements that receive linearly polarized light and selectively form left or right polarized states by the optical axis of the linearly polarized light. to be.

101: 3D image realization system 110: liquid crystal display device
112: liquid crystal panel 115: array substrate
116: gate wiring 118: data wiring
119: pixel electrode 120: color filter substrate
121: black matrix 122: color filter layer
125: first polarizing plate 130: second polarizing plate
140: the first patterned retarder
141a, 141b: first and second patterned patterns
145: polarized glasses 145a: left eye lens
145b: Right eye lens 150: First patterned retarder
151a, 151b: first and second patterned patterns
EL: Even pixel line OL: Odd pixel line
P: Pixel Area Tr: Thin Film Transistor

Claims (14)

A liquid crystal panel provided with a plurality of pixel lines defined as a plurality of pixel regions connected to the same gate line and having a black matrix having a first width corresponding to boundaries of adjacent pixel lines;
First and second polarizing plates respectively provided on the outer and outer sides of the liquid crystal panel;
A first patterned retarder provided on an outer surface of the second polarizing plate, the first patterned pattern having a first optical axis and the second patterned pattern having a second optical axis alternately disposed;
A second patterned pattern disposed on an outer surface of the first patterned retarder via an auxiliary substrate, wherein a third patterned pattern having a third optical axis and a fourth patterned pattern having a fourth optical axis are alternately disposed; Retarder
Wherein the first patterned pattern is formed to correspond to the pixel line, and the second patterned pattern is completely overlapped with the black matrix to have a second width less than or equal to the first width. 3D image implementation system characterized in that.
The method of claim 1,
The first patterned retarder phase-delays the light passing therethrough by λ / 2,
And the second patterned retarder retards light passing therethrough by λ / 4.
delete delete delete delete The method of claim 1,
The third and fourth patterned patterns may be formed to correspond to the pixel lines, and the boundary between the third and fourth patterned patterns adjacent to each other may be positioned to correspond to the second patterned pattern. Implementation system.
The method of claim 7, wherein
And the first and second optical axes have the same absolute value and have a difference of 45 degrees in size.
The method of claim 8,
And the third and fourth optical axes have a difference of 90 degrees.
The method according to any one of claims 1, 2, 7 to 9,
The liquid crystal panel displays left eye and right eye or right eye and left eye images for odd and even pixel lines, respectively.
The light emitted through the odd-numbered pixel lines passes through the first patterned pattern and the third patterned pattern to become light in a left circularly polarized or right circularly polarized first state.
The light emitted through the even-numbered pixel line passes through the first patterned pattern and the fourth patterned pattern, so that light of a right circularly polarized light or a left circularly polarized second state is opposite to light passing through the third patterned pattern. Will be
Light emitted through the odd-numbered pixel lines passes through the second patterned pattern and the fourth patterned pattern to become light in the second state.
3. The system of claim 3, wherein the light emitted through the even-numbered pixel line passes through the second patterned pattern and the third patterned pattern to become light in the first state.
11. The method of claim 10,
The liquid crystal panel includes an array substrate having a plurality of pixel regions for each pixel line, a color filter substrate having a color filter layer corresponding to each pixel region, and a liquid crystal interposed between the array substrate and the color filter substrate. And a black matrix having a first width corresponding to a boundary of the pixel line on the color filter substrate.
The method of claim 11,
And the auxiliary substrate has a thickness of 40% to 50% of the thickness of the color filter substrate.
13. The method of claim 12,
3D image realization system having a backlight unit on the outer surface of the first polarizing plate.
The method of claim 13,
And a left eye lens and a right eye lens, respectively, selectively transmit the light having the first state and the second state emitted through the second patterned retarder.

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