KR101820840B1 - Liquid crystal display device and method of fabricating the same - Google Patents

Abstract

The present invention relates to a liquid crystal display device which includes a left eye pixel line and a right eye pixel line which include an array substrate facing each other with a liquid crystal layer interposed therebetween and an opposing substrate and each of which produces a left eye image and a right eye image, A liquid crystal panel having a black matrix arranged at a boundary portion; And a patterned retarder corresponding to each of the left eye pixel line and the right eye pixel line and including a left eye retarder and a right eye retarder for converting the light into circularly polarized light in mutually opposite directions, A liquid crystal display device having a thickness of 0.05 mm to 0.15 mm is provided.

Description

[0001] The present invention relates to a liquid crystal display device and a manufacturing method thereof,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquid crystal display device, and more particularly, to a polarizing glasses type liquid crystal display device and a method of manufacturing the same.

As the information society has developed in recent years, the demand for the display field has been increasing in various forms, and a liquid crystal display device capable of realizing not only a two-dimensional plane image but also a three-dimensional stereoscopic image with respect to an image realization method has been developed.

In addition to the binocular disparity due to the distance between the two eyes, there are psychological and memorizing factors for the depth and stereoscopic effect of the human image.

One of the three-dimensional stereoscopic image display methods using these factors is a stereoscopic type in which stereoscopic effect is felt using physiological factors of both eyes.

The stereoscopic type is the ability to generate the spatial information before and after the display surface in the process of fusion of the brain by providing the plane image of the plane including the parallax information in the left and right, That is, stereography is used.

Such a stereoscopic expression system is classified into a spectacle system in which a viewer wears special glasses depending on a substantial stereoscopic generation position and a non-stereoscopic vision system in which a lens array such as a parallax barrier or a lenticular on the display side is used, . ≪ / RTI >

Among these glasses, the viewing angle is wider than that of the non-glasses type, and it is less prone to dizziness and can be manufactured at a relatively low cost.

The above-described spectacle method can be divided into a shutter spectacle method and a polarizing spectacle method.

The shutter glasses system alternately displays the left and right eye images on one screen and synchronizes the sequential opening and closing timings of the left and right shutters of the shutter glasses with the temporal difference times of the left and right eyes so that the respective images are separately recognized in the left eye and the right eye It is a method of expressing three-dimensional feeling.

Flicker phenomenon may occur when the shutter eyeglasses system is not controlled so as to perfectly match the temporal difference timings so that observers may experience fatigue such as dizziness when viewing stereoscopic images.

On the other hand, in the polarizing glasses system, the pixels of one screen are divided into two in units of row lines so that the left and right eye images are displayed in different polarization directions, and the left and right eye lenses of the polarizing glasses have different polarization directions, This is a way to express stereoscopic feeling by being recognized separately in the left eye and the right eye.

Such a polarizing glasses system has an advantage that the occurrence of a flicker phenomenon as in the shutter glasses system is eliminated, so that fatigue is less likely to occur during viewing.

In the conventional polarizing glasses type liquid crystal display device, glass substrates made of glass are used as the upper and lower substrates constituting the liquid crystal panel. However, the thickness of the glass substrate is limited due to various factors. Therefore, the vertical viewing angle of the liquid crystal display device related to the thickness of the upper substrate becomes narrow.

In order to solve this problem, a method of arranging a black matrix between the left eye pixel line and the right eye pixel line of the liquid crystal panel and increasing the width thereof is adopted. However, if the width of the black matrix is increased as described above, the transmittance decreases.

As described above, in the conventional polarizing glasses type liquid crystal display device, viewing of stereoscopic images is restricted.

The present invention has a problem to be solved in view of stereoscopic viewing.

In order to achieve the above-described object, the present invention provides a liquid crystal display device comprising: a left eye pixel line and a right eye pixel line, each of which includes an array substrate and an opposite substrate facing each other with a liquid crystal layer interposed therebetween, A liquid crystal panel having a black matrix arranged at a boundary portion between the left-eye pixel line and the right-eye pixel line; And a patterned retarder corresponding to each of the left eye pixel line and the right eye pixel line and including a left eye retarder and a right eye retarder for converting the light into circularly polarized light in mutually opposite directions, A liquid crystal display device having a thickness of 0.05 mm to 0.15 mm is provided.

Here, the pixel electrode and the common electrode that form an electric field in the liquid crystal layer may be formed on the array substrate and the counter substrate, respectively, or may be formed on the array substrate.

The array substrate may be made of a glass substrate.

And a polarizer disposed between the liquid crystal panel and the patterned retarder.

In another aspect, the present invention provides a liquid crystal display comprising: a left eye pixel line and a right eye pixel line, each of which includes an array substrate and a polymer layer facing each other with a liquid crystal layer interposed therebetween and each of which generates a left eye image and a right eye image, A liquid crystal panel including a black matrix disposed at a boundary portion between pixel lines; And a patterned retarder including a left eye retarder and a right eye retarder that correspond to the left eye pixel line and the right eye pixel line, respectively, and convert the light into circularly polarized light in mutually opposite directions.

The array substrate may include a color filter layer, a pixel electrode that forms an electric field in the liquid crystal layer, and a common electrode.

The array substrate may be made of a glass substrate.

And a polarizer disposed between the liquid crystal panel and the patterned retarder.

According to another aspect of the present invention, there is provided a method of manufacturing a liquid crystal display device, comprising: applying a polymer / liquid crystal composite solution on an array substrate; and irradiating ultraviolet rays to the polymer / liquid crystal composite solution to phase-separate the polymer and the liquid crystal to form a liquid crystal layer and a cured polymer layer The method comprising the steps of: Wherein the liquid crystal panel is provided with a left eye pixel line and a right eye pixel line for generating a left eye image and a right eye image respectively and a left eye pixel line and a right eye pixel line for generating a left eye image and a right eye image, Wherein the patterned retarder includes a left eye retarder and a right eye retarder that correspond to the left eye pixel line and the right eye pixel line and convert the light into circularly polarized light in mutually opposite directions, A method of manufacturing a liquid crystal display device is provided.

The array substrate may include a color filter layer, a pixel electrode that forms an electric field in the liquid crystal layer, and a common electrode.

The array substrate may be made of a glass substrate.

And disposing a polarizing plate between the liquid crystal panel and the pattern reliader.

In the present invention, an upper substrate of a liquid crystal panel made of a plastic material and having a thickness of about 0.17 mm or less, more preferably 0.10 mm to 0.13 mm, can be manufactured.

Accordingly, a wide viewing angle range including substantially all of the viewing angle range in a general viewing environment can be ensured, the transmittance can be improved, and the component cost and power consumption can be prevented from increasing.

In addition, the thickness and weight of the liquid crystal display device can be reduced, and the liquid crystal panel and the backlight unit for the liquid crystal panel can be also used for a flat image.

Further, in the present invention, instead of using an opposing substrate made of a plastic material opposed to the array substrate, a liquid crystal layer and a polymer layer can be formed by applying a polymer / liquid crystal composite solution directly on an array substrate and by a phase separation method.

Accordingly, the manufacturing process can be simplified, the manufacturing cost can be reduced, and the weight can be reduced, so that the manufacturing efficiency can be improved.

Further, since the polymer layer can be formed to a thickness thinner than that of the plastic substrate, the thickness of the liquid crystal display device can be reduced to a considerable extent, the viewing angle can be widened and the transmittance can be improved, The unit has an advantage that it can be used also for a flat image.

As a result, according to the present invention, the constraints of conventional stereoscopic viewing can be improved and various other advantages can be obtained.

1 and 2 are a perspective view and a sectional view schematically showing a polarizing glasses type liquid crystal display device according to a first embodiment of the present invention, respectively.
3 and 4 are views and graphs for explaining the relationship between the thickness of the second substrate and the viewing angle in the vertical direction in the polarizing glasses type liquid crystal display device according to the first embodiment of the present invention, respectively.
5 is a view schematically showing a polarizing glasses type liquid crystal display device according to a second embodiment of the present invention.
6 and 7 are views schematically showing a process of forming a liquid crystal layer and a polymer layer of a liquid crystal panel according to a second embodiment of the present invention through a phase separation method.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

1 and 2 are a perspective view and a sectional view schematically showing a polarizing glasses type liquid crystal display device according to a first embodiment of the present invention, respectively.

1 and 2, a polarizing glasses type liquid crystal display 100 according to a first embodiment of the present invention includes a liquid crystal panel 200, polarizing plates 310 and 320, and pattern reliaders 330 .

Here, the liquid crystal panel 200 includes two substrates facing each other, for example, a lower array substrate 210, an upper opposing substrate 220, a liquid crystal layer 250 disposed between the two substrates 210 and 220, .

The liquid crystal panel 200 includes a left eye pixel line Hl and a right eye pixel line Hr extending in the first direction, for example, in the horizontal direction (or the row line direction).

Here, the left eye pixel line Hl generates the left eye image Il and the right eye pixel line Hr generates the right eye image Ir.

The left-eye pixel line Hl and the right-eye pixel line Hr are alternately arranged in a second direction that crosses the first direction, for example, in the vertical direction (or in the row-direction).

On the other hand, in each of the left-eye pixel line and the right-eye pixel line Hl and Hr, a large number of pixels P are arranged along the horizontal direction. Here, for example, red (R), green (G), and blue (B) pixels P may be alternately arranged along the horizontal direction in each of the left eye pixel line and the right eye pixel line Hl and Hr.

The array substrate 210 of the liquid crystal panel 200 may have various array elements. For example, on a transparent first substrate 211, gate wirings and data wirings (not shown) that define the pixels P and a transistor TS as a switching element connected to these gate wirings and data wirings And a pixel electrode 218 connected to the transistor TS.

Here, the transistor TS may include a gate electrode 212, a semiconductor layer 214, and source and drain electrodes 215 and 216. A gate insulating layer 213 may be formed on the gate electrode 212 and a passivation layer 217 may be formed on the transistor TS.

On the other hand, the counter substrate 220 includes a black matrix BM, a color filter 222 corresponding to the pixel P, a black matrix BM and a color filter BM, for example, on a transparent second substrate 221, And a common electrode 224 formed on the upper electrode 222. In addition, an overcoat layer 223 for planarization may be formed under the common electrode 224.

Here, the black matrix BM extends in the horizontal direction between the left-eye pixel line and the right-eye pixel line Hl and Hr along their border portions. For example, the black matrix BM may be configured to overlap the boundary portions of neighboring left and right eye pixel lines Hl and Hr.

By constructing such a black matrix BM, the 3D crosstalk can be reduced, which will be described in more detail below.

Green (G), and blue (B) color filters 222 corresponding to red (R), green (B), and blue (B) Can be used.

The common electrode 224 forms an electric field with the pixel electrode 218 formed on the array substrate 210. The liquid crystal layer 250 is driven by the thus formed electric field to display an image.

On the other hand, although not specifically shown, an alignment film for aligning the liquid crystal layer 250 may be formed on each of the array substrate and the opposing substrates 210 and 220.

A polarizing plate, for example, first and second polarizing plates 310 and 320 may be attached to the front and rear surfaces of the liquid crystal panel 200, respectively. Here, the first and second polarizing plates 310 and 320 may be configured such that the polarization axes thereof are perpendicular to each other.

On the other hand, the backlight unit 350 may be disposed as a light source for supplying light to the back side of the liquid crystal panel 200.

The patterned retarder 330 for converting incident light into circularly polarized light may be positioned on the front surface of the first polarizer 310, for example. The pattern drifter 330 includes a left eye retarder Rl extending along the horizontal direction and corresponding to the left eye pixel line Hl and a right eye retarder Rr corresponding to the right eye pixel line Hr . Therefore, the left eye retarder Rl and the right eye retarder Rr can be alternately arranged along the vertical direction.

Here, the left eye retarder Rl and the right eye retarder Rr modulate incident light into circularly polarized light in mutually opposite directions. For example, the left eye retarder Rl modulates the incident light into left-handed circularly polarized light, and the right-eye retarder Rr modulates the incident light into right-handed circularly polarized light.

Hereinafter, a method of implementing a stereoscopic image using the polarizing glasses type liquid crystal display device 100 as described above will be described.

The light emitted from the backlight unit 350 passes through the second polarizing plate 320 and is supplied to the liquid crystal panel 200 and the liquid crystal panel 200 is driven so that the left eye image Il Is generated and a right eye image Ir is generated through a plurality of right eye pixel lines Hr.

The left eye image and the right eye image (Il, Ir) are converted into linearly polarized light parallel to the polarization axis of the first polarizer 310 while passing through the first polarizer 310, and are output.

Each of the linearly polarized left and right eye images Il and Ir is incident on the corresponding left eye retarder and right eye retarders Rl and Rr. Here, the linearly polarized left eye image Il passes through the left eye retarder Rl and is converted into left-handed circularly polarized light and outputted. The linearly polarized right-eye image Ir passes through the right eye retarder Rr, do.

The left-handed circularly polarized left eye image Il and right-eye-polarized right-eye image Ir outputted in this way enter the viewer's polarizing glasses 400. Here, the viewer's polarizing glasses 400 include a left-eye lens 410 through which left-handed circularly polarized light passes and a right-eye lens 420 through which right-handed circularly polarized light passes.

Thus, the left-handed circularly polarized left eye image Il is transmitted to the viewer's left eye via the left eye lens 410, and the right-handed circularly polarized right eye image Ir is transmitted to the viewer's right eye via the right eye lens 420.

As a result, the left eye image Il and the right eye image Ir transmitted to the left eye and the right eye are synthesized, and as a result, the viewer recognizes the stereoscopic image.

The liquid crystal display 100 according to the first embodiment of the present invention has the second substrate 221 made of a plastic material to improve the viewing angle in the vertical direction, Which will be described in more detail below with further reference to Figures 3 and 4.

3 and 4 are views and graphs for explaining the relationship between the thickness of the second substrate and the viewing angle in the vertical direction in the polarizing glasses type liquid crystal display device according to the first embodiment of the present invention. Here, the graph of FIG. 4 has a size of 47 inches, and the black matrix BM is formed by taking a liquid crystal display device having a width W of about 240 μm and a thickness of about 52 μm as an example.

In order to display a desired stereoscopic image, the left eye image Il generated through the pixel P located in the left eye pixel line Hl, that is, the left eye pixel, must pass through the corresponding left eye retarder Rl, The right eye image Ir generated through the pixel P located on the line Hr, i.e., the right eye pixel, must pass through the right eye retarder Rr.

Alternatively, when the left eye image Il is incident on the right eye retarder Rr or the right eye image Ir is incident on the left eye retarder Rl, the left eye image Il is incident on the right eye of the viewer, The image Ir is incident on the left eye of the viewer, so that a preferable stereoscopic image can not be recognized. This phenomenon is called 3D crosstalk.

The above-mentioned 3D crosstalk is caused by the fact that the viewing angle in the vertical direction is limited in the polarizing glasses system.

That is, within the viewing angle range of the vertical direction, the left eye image and the right eye image (Il, Ir) can be observed through the corresponding left eye retarder and right eye retarder (Rl, Rr).

However, when the range of viewing angles in the vertical direction is exceeded, at least a part of the left eye image and the right eye image (Il, Ir) can be observed through the right eye retarder and the left eye retarder Rr, Rl, . In such a case, the left and right eye images (Ir, Il) not corresponding to the left and right eyes of the viewer are input as described above, resulting in a stereoscopic image that is not airy.

As described above, the vertical viewing angle associated with the 3D crosstalk induction is related to the equation using the arc tangent function as follows.

Formula:? C = arctan ((W / 2) / (T1 + T2)).

T1 is the thickness of the second substrate 221, T2 is the thickness of the first polarizing plate 310, and? C is the thickness of the second substrate 221 in the vertical direction, and W is the width of the black matrix BM Corresponds to a critical angle at which 3D crosstalk occurs (angle based on the direction perpendicular to the substrate surface).

According to the above equations, for example, at an angle exceeding the critical angle? C, the light generated in the left eye pixel line Hl can pass through the right eye retarder Rr, and also in the right eye pixel line Hr The light is allowed to pass through the left eye retarder Rl.

As a result, a 3D crosstalk is generated at an angle exceeding the critical angle? C, and a viewing angle range in the vertical direction corresponds to 2? C (i.e., from? C to? C).

Conventionally, in order to increase the viewing angle, a method of increasing the width W of the black matrix (BM) has been adopted. In such a case, however, the transmittance decreases. In addition, in order to compensate for the decrease in transmittance, the brightness of the backlight is increased. In such a case, the component cost and power consumption of the backlight unit 350 increase.

Therefore, in the first embodiment of the present invention, a method of reducing the thickness T1 of the second substrate 221 is adopted. In such a case, since it is not necessary to increase the width W of the black matrix BM as in the conventional art, problems such as decrease in transmittance and increase in parts cost and power consumption can be improved.

With respect to the thickness T1 of the second substrate 221, it is preferable that the thickness is designed to be about 0.05 mm to 0.15 mm, and more preferably, it is designed to be about 0.05 mm to 0.13 mm.

Referring to FIG. 4, the vertical viewing angle graph with respect to the thickness of 0.05 mm to 0.7 mm has a view angle that increases as the thickness decreases, and it can be seen that the range is divided into four ranges according to the slope. That is, four slopes S1 to S4 can be defined in the direction in which the thickness increases, and the thickness range can be distinguished to correspond to these slopes S1 to S4.

As can be seen from the degree of change of these slopes, the size slightly increases slightly from S4 to S2, and the change from S2 to S1 suddenly increases. That is, in the range corresponding to the inclination S1, the change of the viewing angle according to the thickness variation is made most abruptly. Therefore, in the first embodiment of the present invention, the thickness range corresponding to the slope S1 is the most effective in improving the vertical viewing angle. Therefore, in the thickness range corresponding to the slope S1 of 0.05 mm to 0.15 mm, Thickness.

In order to secure the thickness T1 of the second substrate 221 as described above, a plastic substrate is used as the second substrate 221, and a plastic substrate made of a polymer is further preferably used.

In this regard, when a conventional glass substrate is used as the second substrate 221, there is a limitation in thickness reduction due to its characteristics. For example, it is very difficult to manufacture a glass substrate with a thickness of 0.3 mm or less, and even if the glass substrate is successfully manufactured, the glass substrate is damaged in various processes for manufacturing a liquid crystal panel.

For this reason, in the first embodiment of the present invention, a plastic substrate is used as the second substrate 221 in place of the glass substrate.

On the other hand, when the second substrate 221 is used as a plastic substrate, it is preferable that a glass substrate is used as the first substrate 211 in terms of process stability and the like.

As described above, when the second substrate 221 is manufactured with a thickness of about 0.15 mm or less, it is understood that the polarizing glasses type liquid crystal display device 100 can secure a considerably wide viewing angle of about 28 degrees or more .

Such a viewing angle range has a significant meaning as a wide viewing angle range including substantially all the viewing angle range in a general viewing environment.

In addition, the achievement of such a wide viewing angle is due to the thickness control of the second substrate 221, and it is not necessary to lower the transmittance, increase the parts cost, and increase the power consumption. Thus, the first embodiment of the present invention has a larger meaning will be.

In addition, since the second substrate 221 can be formed to have a small thickness, the thickness and weight of the liquid crystal panel 200 and the liquid crystal display device 100 using the same can be reduced.

In addition, due to the thinness of the second substrate 221, the liquid crystal panel 200 for stereoscopic images using the same can achieve substantially the same level of transmittance as a 2D image, that is, a liquid crystal panel for a planar image. Accordingly, the liquid crystal panel 200 for a stereoscopic image and the backlight unit 350 for the stereoscopic image have an advantage that they can be used for a flat image.

In the first embodiment of the present invention described above, the pixel electrode 218 and the common electrode 224 are formed on different substrates in association with the liquid crystal panel 200 to drive the liquid crystal layer 250, The panel 200 is taken as an example. As such a liquid crystal panel 200, a TN (twisted nematic) type liquid crystal panel, a VA (vertical alignment) type liquid crystal panel, or the like can be used.

However, it will be apparent to those skilled in the art that various liquid crystal panels of different types can be used. For example, a pixel electrode and a common electrode may be formed on the same substrate, for example, an array substrate 210, and a liquid crystal layer 250 may be formed on the liquid crystal layer 250 using in-plane switching (IPS) ) Type liquid crystal panel can be used.

In the first embodiment of the present invention described above, the liquid crystal panel 200 in which the color filter 222 and the black matrix BM are formed on the counter substrate 220 is used. In such a case, the liquid crystal panel 200 can be manufactured by separately fabricating the array substrate 210 and the counter substrate 220, and attaching the liquid crystal layer 250 therebetween.

On the other hand, a liquid crystal panel having a structure in which a color filter and a black matrix are formed on an array substrate and a counter substrate is not required is used, which will be described in more detail below.

5 is a view schematically showing a polarizing glasses type liquid crystal display device according to a second embodiment of the present invention.

5, pixel electrodes and common electrodes formed in the liquid crystal panel 200 are not specifically shown for convenience of explanation. The pixel electrode and the common electrode are formed together on the array substrate 210, and the position on the cross section can be variously changed as needed.

The liquid crystal display device 100 according to the second embodiment of the present invention is substantially similar to the liquid crystal display device according to the first embodiment except for the structure of the liquid crystal panel 200, The description of which may be omitted.

Referring to FIG. 5, a liquid crystal panel 200 according to a second embodiment of the present invention may include an array substrate 210, a liquid crystal layer 250, and a polymer layer 260.

A color filter 222 and a black matrix BM are formed on the first substrate 211 on the array substrate 210.

Here, the color filter 222 may be placed on the transistor TS on the cross-sectional structure, for example. The structure in which the color filter 222 is formed on the transistor TS is called a color filter on transistor (COT) structure. The color filter 222 is formed on a corresponding pixel P, for example, red, green, and blue color filters may be formed on red, green, and blue pixels, respectively.

The black matrix BM may be formed to cover the transistor TS over the transistor TS, and may extend in the horizontal direction as in the first embodiment.

On the other hand, the above-mentioned positions on the cross sections of the color filter 222 and the black matrix BM can be formed at various other positions as an example. For example, the color filter 222 may be located on the bottom side of the transistor TS, and the black matrix BM may also be located on the bottom side of the transistor TS.

Although not specifically shown, a pixel electrode and a common electrode for forming an electric field in the liquid crystal layer 250 may be formed on the first substrate 211. [ For example, both the pixel electrode and the common electrode can be formed on the color filter 222 to form a transverse electric field, and the liquid crystal layer 250 can be driven according to the transverse electric field. The positions of the pixel electrodes and the common electrodes on the cross section are examples, the positions of the electrodes can be changed, and the electrodes can be formed at different positions.

In addition, an alignment film for aligning the liquid crystal layer 250 as the uppermost layer may be formed on the array substrate 210.

The color filter 222 and the black matrix BM are formed on the array substrate 210 and the liquid crystal layer 250 and the polymer layer 260 are sequentially formed on the array substrate 210 .

The liquid crystal layer 250 and the polymer layer 260 may be formed by a phase separation method, which will be described with reference to FIGS. 6 and 7. FIG.

First, referring to FIG. 6, a polymer / liquid crystal composite solution 270 is coated on an array substrate 210. In this regard, various methods of applying the solution onto the substrate can be used. For example, the polymer / liquid crystal composite solution 270 is dropped on a part of the array substrate 210 and the array substrate 210 is relatively moved in one direction ) Is uniformly applied over the entire surface of the substrate 210 can be used.

Next, referring to FIG. 7, the applied polymer / liquid crystal composite solution 270 is irradiated with ultraviolet rays. In this case, the liquid crystal system of the complex solution 270 is phase-separated from the polymer system, and a polymer layer 260 made of a cured polymer is formed on the liquid crystal layer 250 made of liquid crystal and the cured polymer is formed on the liquid crystal layer 250.

The thus formed polymer layer 260 can function as a plastic substrate.

Through the above process, the liquid crystal layer 250 and the polymer layer 260 can be formed on the array substrate 210.

As described above, according to the second embodiment of the present invention, the liquid crystal panel 200 is manufactured by manufacturing the array substrate 210 and then directly forming the liquid crystal layer 250 and the polymer layer 260 on the array substrate 210 .

The polarizing plate type liquid crystal display device 100 is manufactured by attaching the polarizing plates 310 and 320 and the pattern reliader 330 to the liquid crystal panel 200 manufactured as described above and arranging the backlight unit 350 at the lower portion .

As described above, according to the second embodiment of the present invention, there is no need to fabricate a counter substrate having a separate color filter, so that the manufacturing process for the liquid crystal panel 200 is simplified, the manufacturing cost is reduced, It is possible to further reduce the manufacturing efficiency, as a result.

Furthermore, by forming the polymer layer 260 functioning as a plastic substrate directly on the array substrate 210, the polymer layer 260 can be made thinner than the plastic substrate. Therefore, the thickness of the liquid crystal panel 200 and the liquid crystal display device 100 using the same can also be reduced to a considerable extent.

Also, as the thickness of the polymer layer 260 is reduced, the viewing angle of the polarizing-eyepiece-type liquid crystal display device 100 can be widened to a considerable extent. Here, the thickness of the polymer layer 260 may be, for example, the thickness of the second substrate which is the plastic substrate in the first embodiment described above, but is not limited thereto, and may be larger or smaller.

In addition, since the thickness of the polymer layer 260 can be made thin, the liquid crystal panel 200 for stereoscopic images using the same can achieve substantially the same level of transmittance as a 2D image, that is, a liquid crystal panel for a flat image. Accordingly, the liquid crystal panel 200 for a stereoscopic image and the backlight unit 350 for the stereoscopic image have an advantage that they can be used for a flat image.

The embodiment of the present invention described above is an example of the present invention, and variations are possible within the spirit of the present invention. Accordingly, the invention includes modifications of the invention within the scope of the appended claims and equivalents thereof.

221: second substrate 310: first polarizer
330: Patterned retarder
Hl: Left eye pixel line Hr: Right eye pixel line
Rl: Left eye retarder Rr: Right eye retarder
T1: thickness of the second substrate T2: thickness of the first polarizer plate
W: width of black matrix

Claims (12)

An array substrate and an opposite substrate facing each other with a liquid crystal layer therebetween,
A liquid crystal panel including a left eye pixel line and a right eye pixel line for generating a left eye image and a right eye image, respectively, and a black matrix disposed at a boundary portion between the left eye pixel line and the right eye pixel line;
And a patterned retarder corresponding to each of the left eye pixel line and the right eye pixel line and including a left eye retarder and a right eye retarder for converting the polarized light into circularly polarized light in mutually opposite directions,
The substrate made of the plastic material formed on the counter substrate has a thickness of 0.05 mm to 0.15 mm,
Wherein the counter substrate comprises a color filter formed on the substrate made of plastic and the black matrix
Liquid crystal display device.
The method according to claim 1,
Wherein the pixel electrode and the common electrode, which form an electric field in the liquid crystal layer,
The array substrate and the counter substrate may be formed on the array substrate,
Liquid crystal display device.
3. The method of claim 2,
Wherein the array substrate is made of a glass substrate.
The method according to claim 1,
And a polarizer disposed between the liquid crystal panel and the pattern reliader.
An array substrate and a polymer layer facing each other with a liquid crystal layer interposed therebetween,
A liquid crystal panel including a left eye pixel line and a right eye pixel line for generating a left eye image and a right eye image, respectively, and a black matrix disposed at a boundary portion between the left eye pixel line and the right eye pixel line;
And a left eye retarder and a left eye retarder corresponding to the left eye pixel line and the right eye pixel line, respectively, and converting the light into circularly polarized light in mutually opposite directions, wherein a black matrix is formed at a boundary between the left eye retarder and the right eye retarder Non-patterned retarder
And the liquid crystal display device.
6. The method of claim 5,
Wherein a color filter layer, a pixel electrode forming an electric field in the liquid crystal layer, and a common electrode are formed on the array substrate
Liquid crystal display device.
The method according to claim 6,
Wherein the array substrate is made of a glass substrate.
6. The method of claim 5,
And a polarizer disposed between the liquid crystal panel and the pattern reliader.
Coating a polymer / liquid crystal composite solution on an array substrate; and irradiating the polymer / liquid crystal composite solution with ultraviolet light to phase-separate the polymer and the liquid crystal to form a liquid crystal layer and a cured polymer layer, ;
And disposing a pattern reliader on the liquid crystal panel,
The liquid crystal panel includes a left pixel line and a right eye pixel line for generating a left eye image and a right eye image, respectively, and a black matrix disposed at a boundary portion between the left eye pixel line and the right eye pixel line,
Wherein the pattern leader retarder includes a left eye retarder and a right eye retarder that correspond to the left eye pixel line and the right eye pixel line and convert them into circularly polarized light in mutually opposite directions, In which no black matrix is formed
A method of manufacturing a liquid crystal display device.
10. The method of claim 9,
Wherein a color filter layer, a pixel electrode forming an electric field in the liquid crystal layer, and a common electrode are formed on the array substrate
A method of manufacturing a liquid crystal display device.
11. The method of claim 10,
Wherein the array substrate is made of a glass substrate.
10. The method of claim 9,
And disposing a polarizing plate between the liquid crystal panel and the patterned retarder.

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