KR101804329B1 - 3D image display device and method of manufacturing the same - Google Patents

Abstract

The present invention provides a liquid crystal display comprising: a display panel for displaying a left eye image and a right eye image, including a first substrate defining a pixel region intersecting a gate line and a data line, and a second substrate formed on the first substrate; A polarizing film formed on the second substrate; And a patterned retarder formed on the polarizing film and including a left eye retarder for left-hand circularly polarizing the left eye image and a right eye retarder for right-circularly polarizing the right eye image, And a total reflection portion formed at a boundary portion of the region for totally reflecting the oblique incident light.

Description

TECHNICAL FIELD [0001] The present invention relates to a three-dimensional image display apparatus and a manufacturing method thereof,

The present invention relates to an image display apparatus, and more particularly, to a three-dimensional image display apparatus including a patterned retarder layer having an improved viewing angle.

2. Description of the Related Art [0002] As an information-oriented society develops, demands for a display device for displaying an image have increased in various forms. Recently, a liquid crystal display (LCD), a plasma display panel (PDP) Various flat display devices such as organic light emitting diodes (OLEDs) have been utilized.

Such a flat panel display device has recently provided a function of displaying a three-dimensional image.

Generally, stereoscopic images representing three dimensions are made by the principle of stereoscopic vision through two eyes. Specifically, since two eyes exist about 65mm apart, even if one image is seen, the left and right eyes see different images because of difference of positions of two eyes.

In other words, the left and right eyes see different two-dimensional images, two different two-dimensional images are transmitted to the brain, and the brain fuses these two images to reproduce the depth and realism of the original three-dimensional image.

As a method of realizing such a three-dimensional image, a patterned retarder is typically used.

Hereinafter, a three-dimensional image display apparatus using a pattern driftatter will be described with reference to FIG.

1 is a schematic cross-sectional view of a three-dimensional image display apparatus using a general pattern-type retarder.

1, the three-dimensional image display device includes a display panel 2, a polarizing film PF formed on the display panel, and a pattern reliader PR formed on the polarizing film PF. .

The display panel 2 includes first and second substrates 1 and 4 spaced apart from each other and a liquid crystal layer 8 formed between the first and second substrates 1 and 4.

A thin film transistor T is formed on the first substrate 1 and a protective layer 6 including a contact hole 6a is formed on the thin film transistor T. [

A pixel electrode PE connected to the thin film transistor T through the contact hole 6a is formed in each of the pixel regions on the protective layer 6.

A black matrix BM corresponding to the gate lines, the data lines and the thin film transistors T is formed under the second substrate 4 and has openings corresponding to the pixel regions of the first substrate 1, A color filter layer CF is formed under the second substrate 4 exposed through the opening of the black matrix BM.

In a case where the display panel 2 is driven in the vertical electric field mode, a transparent common electrode CE may be further formed under the color filter layer CF.

A black stripe (BS) may further be formed between the second substrate 4 and the polarizing film PF. A black stripe (BS) may be formed at each pixel region boundary.

A pattern reliader PR is attached to the upper portion of the polarizing film PF.

The pattern reliader PR includes a left-eye retarder Rl and a right-eye retarder Rr that are alternately arranged in the vertical direction when viewed from the front, for example, in the top view direction.

Here, the black stripe (BS) prevents the 3D cross-talk in which the left eye image and the right eye image are simultaneously transmitted to the viewer's left eye or right eye, thereby improving the 3D viewing angle in the vertical direction . The black matrix (BM) width in the display panel 2 may be increased without forming a black stripe (BS) in order to prevent three-dimensional crosstalk.

In this case, in order to improve the three-dimensional crosstalk, the width of the black stripe (BS) or the black matrix (BM) must be increased.

When the widths of the black stripe (BS) and the black matrix (BM) are increased, the aperture ratio is lowered and light is lost.

Specifically, the light L2 emitted from the lower portion of the first substrate 1 is entirely absorbed and lost by the black stripe (BS) having a large width.

On the other hand, when the black stripe (BS) is removed or the width of the black stripe (BS) is reduced to improve the aperture ratio, the three-dimensional crosstalk can not be completely improved. For example, when the incident angle of the light incident on the first substrate 1 is large, the light L1 is not blocked by the black stripe (BS) and is emitted to a pixel region other than the corresponding pixel region of the second substrate 4 do. That is, the light of the right eye image is emitted to the pixel region where light of the left eye image is emitted, and the three-dimensional crosstalk is increased.

This is because the boundary wall between the pixel regions of the second substrate 4 is not formed and the light can proceed freely up to the adjacent pixel region.

Referring to FIG. 2, the progress of the light is examined. FIG. 2 is a simulation result showing the progression region of light when a boundary wall is not formed between pixel regions in the second substrate 4. FIG.

As shown in FIG. 2, when the boundary wall is not formed between the pixel regions, it can be seen that the light proceeds without limitation to the left or right. That is, the second substrate 4 can be moved freely.

That is, it can be seen that the light emitted to the pixel region that is not corresponded is emitted to the outside of the display panel without being blocked.

In other words, in order to prevent three-dimensional crosstalk, a general three-dimensional image display device has to have a large width of a black stripe, which causes a problem of lowering the aperture ratio. In addition, when the width of the black stripe is narrowed or the black stripe is removed, there is a problem that the three-dimensional crosstalk can not be improved.

It is an object of the present invention to provide a three-dimensional image display apparatus and a method of manufacturing the same that prevent three-dimensional crosstalk and improve three-dimensional viewing angle characteristics and improve aperture ratio and luminance.

According to an aspect of the present invention, there is provided a liquid crystal display device including a first substrate defining a pixel region intersecting a gate line and a data line, and a second substrate formed on the first substrate, A display panel for displaying the display panel; A polarizing film formed on the second substrate; And a patterned retarder formed on the polarizing film and including a left eye retarder for left-hand circularly polarizing the left eye image and a right eye retarder for right-circularly polarizing the right eye image, And a total reflection portion formed at a boundary portion of the region for totally reflecting the oblique incident light.

A black matrix is formed in a lower portion of the second substrate corresponding to a boundary portion of the pixel region or a black matrix is formed in a lower portion of the second substrate in correspondence with a boundary portion of the pixel region, A black stripe is further formed corresponding to the boundary portion of the pixel region.

The total reflection portion is composed of a pupil including air.

The pupil is formed as a rectangular parallelepiped which is divided into at least one or more along the height direction of the second substrate.

The pupil includes at least one spot column composed of a plurality of spheres arranged along the height direction of the second substrate.

The diameter of the spot is 0.2 [mu] m and the interval between the spot rows is 1.2 [mu] m.

A display panel for displaying a left eye image and a right eye image including a first substrate for defining a pixel region by intersecting a gate wiring and a data wiring, and a second substrate having a black matrix formed thereunder corresponding to the pixel region boundary, A polarizing film formed on the second substrate; And a patterned retarder formed on the polarizing film and including a left eye retarder for left-hand circularly polarizing the left eye image and a right eye retarder for right-hand circularly polarizing the right eye image, Forming the gate wiring and the data wiring on the first substrate; Forming the black matrix on the second substrate; Forming a polarizing film on the second substrate; Forming a total reflection part inside the second substrate; And forming the pattern reliader on the second substrate.

The forming of the total reflection part includes irradiating the second substrate with light of a femtosecond laser.

In the three-dimensional image display device and the method of manufacturing the same according to the present invention, by forming the total reflection portion on the second substrate of the display panel, the three-dimensional cross talk is prevented to improve the three-dimensional viewing angle characteristic, .

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a sectional view of a three-dimensional stereoscopic image display apparatus according to a general pattern-driven retarder method. FIG.
2 is a simulation result showing a path of light in a three-dimensional three-dimensional image display device of a general pattern-driven retarder type.
3 is a perspective view of a patterned retarder type three-dimensional image display device according to an embodiment of the present invention.
4 is a cross-sectional view of a pattern-retarder type three-dimensional image display apparatus according to an embodiment of the present invention.
FIG. 5 is an enlarged view of region A of FIG. 4 according to the first embodiment of the present invention; FIG.
FIG. 6 is an enlarged view of region A of FIG. 4 according to the second embodiment of the present invention; FIG.
FIGS. 7A to 7F are simulation results showing the light traveling path when the total reflection part is formed according to the embodiment of the present invention. FIG.
8 is a diagram showing a part of a laser device as an example;

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

3 is a perspective view of a three-dimensional image display apparatus according to an exemplary embodiment of the present invention.

3, the three-dimensional image display apparatus 10 includes a display panel 20 for displaying an image, a first polarizing film 50 formed on the display panel 20, And a patterned retarder (60) formed on the polarizing film (50).

The display panel 20 includes a non-display area NDA between the display area DA for displaying an image and the display area DA and the display area DA includes a left-eye horizontal pixel line Hl and a right- Line Hr.

The left eye horizontal pixel line Hl for displaying the left eye image and the right eye pixel line Hr for displaying the right eye image are alternately arranged along the vertical direction of the display panel 20, For example, red, green and blue pixel regions R, G and B are sequentially arranged in each of the pixel lines Hr.

The first polarizing film 50 modulates the left eye image and the right eye image displayed by the display panel 20 into a linearly polarized left eye image and a linearly polarized right eye image, respectively, and transmits the modulated left eye image and the right eye image to the pattern derraser 60.

The pattern reliider 60 includes a left eye retarder Rl and a right eye retarder Rr in which the left eye retarder Rl and the right eye retarder Rr are respectively connected to a left eye horizontal pixel line Hl, Are alternately arranged along the vertical direction of the display panel 20 in correspondence with the horizontal pixel lines Hr.

Here, the left eye retarder Rl modulates the linearly polarized light into the left-handed circularly polarized light and outputs it, and the right-eye retarder Rr modulates the linearly polarized light into the right-handed circularly polarized light and outputs it.

Therefore, the left eye image displayed by the left eye horizontal pixel line Hl of the display panel 20 is linearly polarized while passing through the first polarizing film 50, and then the left eye retarder Rl of the patterned retarder 60, And the right eye image displayed on the right eye pixel line Hr of the display panel 20 is linearly polarized while passing through the first polarizing film 50, Passes through the retarder Rr, is right-polarized and transmitted to the viewer.

The polarizing glasses 80 worn by the viewer include a left eye lens 82 and a right eye lens 84. The left eye lens 82 transmits only the left circularly polarized light and the right eye lens 84 transmits only right circularly polarized light.

Therefore, the left-handed circularly polarized left-eye image is transmitted to the viewer's left eye via the left-eye lens 82, the right-handed circularly polarized right-eye image is transmitted to the viewer's right eye via the right-eye lens 84, Dimensional stereoscopic image by combining the left and right eye images transmitted in the right and left directions, respectively.

4 is a cross-sectional view of a three-dimensional image display apparatus 10 according to an embodiment of the present invention.

First, the display panel 20 includes a cathode ray tube (CRT), a plasma display panel (PDP), a liquid crystal display panel, an organic light emitting diode panel may be used. For convenience of explanation, the liquid crystal panel will be described as an example.

4, the display panel 20 includes first and second substrates 22 and 40 spaced apart from each other and a liquid crystal layer (not shown) formed between the first and second substrates 22 and 40 48).

A gate electrode 24 connected to a gate wiring and a gate wiring are formed on the first substrate 22 and a gate insulating layer 26 is formed on the gate wiring and the gate electrode 24.

A semiconductor layer 28 is formed on the gate insulating layer 26 corresponding to the gate electrode 24 and a source electrode 32 and a drain electrode 34 are formed on the semiconductor layer 28, (Not shown) connected to the data line 32 are formed.

The data lines intersect the gate lines to define pixel regions 1P1, 2P1 and 3P1.

Here, the gate electrode 24, the semiconductor layer 28, the source electrode 32, and the drain electrode 34 constitute the thin film transistor T.

A protective layer 36 is formed on the source electrode 32, the drain electrode 34 and the data line. The protective layer 36 includes a drain contact hole 36a exposing the drain electrode 34.

A pixel electrode 38 connected to the drain electrode 34 through the drain contact hole 36a is formed on each of the pixel regions 1P1, 2P1 and 3P1 on the protection layer 36. [

A black matrix 42 having openings corresponding to the pixel regions 1P1, 2P1 and 3P1 of the first substrate 22 and corresponding to the gate lines, the data lines and the thin film transistors T is formed under the second substrate 40, . That is, the black matrix 42 is formed at the boundary between the pixel regions 1P1, 2P1, and 3P1 of the first substrate 22, respectively.

A color filter layer 44 is formed under the second substrate 40 exposed through the lower portion of the black matrix 42 and the openings of the black matrix 42.

Although not shown, the color filter layer 44 includes red, green and blue color filters respectively corresponding to the pixel regions 1P1, 2P1 and 3P1 of the first substrate 22.

In the case where the display panel 20 is driven in the vertical electric field mode, a transparent common electrode 46 may be further formed under the color filter layer 44. Here, when the display panel 20 is driven in the horizontal electric field mode, the common electrode may be formed on the first substrate 22.

The liquid crystal layer 48 is located between the pixel electrode 38 of the first substrate 22 and the common electrode 46 of the second substrate 40. An alignment film for determining the initial alignment of the liquid crystal molecules is formed between the liquid crystal layer 48 and the pixel electrode 38 and between the liquid crystal layer 48 and the common electrode 46.

The first substrate 22 is disposed on the second polarizing film 52 and the first polarizing film 50 is disposed on the second substrate 40. The first and second polarizing films 50 and 52 transmit only the linearly polarized light parallel to the light transmission axis and the light transmission axis of the second polarizing film 52 is disposed perpendicular to the light transmission axis of the first polarizing film 50 .

A black stripe 66 may be further formed between the second substrate 40 and the first polarizing film 50. A black stripe 66 may be formed at the boundary of each pixel region 1P2, 2P2, and 3P2.

In this case, the black stripes 66 are formed on the second substrate 40 as an example. However, the black stripes 66 may be formed on the lower portion of the retarder layer 64, ) And the right eye retarder Rr.

Here, the black stripes 66 prevent the 3D cross-talk in which the left eye image and the right eye image are simultaneously transmitted to the viewer's left eye or right eye, thereby improving the 3D viewing angle in the vertical direction . The width of the black matrix 42 in the display panel 20 may be increased without forming the black stripe 66 in order to prevent three-dimensional crosstalk.

A pattern reliader 60 is attached to the upper portion of the first polarizing film 50. The pattern reliader 60 includes a base film 62 and a retarder layer 64 under the base film 62, And an adhesive layer 68 under the retarder layer 64.

The retarder layer 64 includes a left-eye retarder Rl and a right-eye retarder Rr which are arranged alternately in the vertical direction. The left eye retarder Rl and the right eye retarder Rr have a retardation of a quarter wave (λ / 4) and their optical axes are set to + 45 degrees and -45 degrees, respectively.

In the second substrate 40 of the display panel 20 according to the embodiment of the present invention, a total reflection portion 41 is formed corresponding to the boundary of each pixel region 1P1, 2P1, 3P1 of the first substrate 22 do.

The total reflection part 41 guides light so that the light incident on the first substrate 22 of the display panel 20 can be emitted to the corresponding area of the second substrate 40 .

Specifically, for example, the light incident on the second pixel region 2P1 of the first substrate 22 obliquely and reaching the total reflection portion 41 is incident on the pixel region 1P2 of the second substrate 40 , 2P2, and 3P2, respectively. The light emitted from the second pixel region 2P1 of the first substrate 22 is incident on the second pixel region 2P2 of the second substrate 40 corresponding to the second pixel region 2P1 of the first substrate 22 2P2 and is not emitted to the third pixel region 3P2 and the first pixel region 1P2 of the second substrate 40. [

That is to say, the total reflection part 41 is formed so that all of the light incident on each pixel area 1P1, 2P1 and 3P1 of the first substrate 22 is incident on the corresponding pixel areas 1P2, 2P2 and 3P2 of the second substrate 40, .

Accordingly, the 3D cross-talk in which the left eye image and the right eye image are simultaneously transmitted to the left eye or the right eye of the viewer is prevented, and the 3D viewing angle in the vertical direction is improved.

For this purpose, the total reflection part 41 may be formed at the boundary between the pixel regions 1P2, 2P2 and 3P2 of the second substrate 40, for example.

For example, the total reflection part 41 may be formed at the central portion of the black matrix 42 formed on the lower part of the second substrate 40 or the black stripe 66 formed on the second substrate 40.

In addition, the height H2 of the total reflection part 41 is adjusted to correspond to the height H1 of the second substrate 40. For example, the height H2 of the total reflection part 41 may have a value equal to or smaller than a height H1 of the second substrate 40. For example, the height H2 of the total reflection part 41 may be the same as the height H1 of the second substrate 40 or about 80% or more of the height H1 of the second substrate 40 have. That is, the height H2 of the total reflection part 41 has a value equal to or smaller than the height H1 of the second substrate 40, so that the total reflection part 41 is positioned on the pixel area 1P2 , 2P2, 3P2).

Here, the refractive index of the total reflection portion 41 is smaller than the refractive index of the second substrate 40. For example, the inside of the total reflection part 41 may be formed of air to have a refractive index of 1. That is, the total reflection part 41 is constituted of, for example, a cavity including air. Accordingly, the light reaching the total reflection portion 41 while passing through the second substrate 40, for example, is about 42 degrees or more, which causes total reflection and fails to pass through the other pixel regions, So that it can be emitted. At this time, the reason that the light is totally reflected is that the refractive index of the second substrate 40 has a refractive index (refractive index of glass) of, for example, about 1.5 and the refractive index of the total reflection section 41 has a refractive index of 1 Because. That is, the light is totally reflected while being incident on the total reflection part 41 having a small refractive index in the second substrate 40 having a large refractive index.

Hereinafter, the total reflection part according to the embodiment of the present invention will be described in more detail with reference to FIGS. 5 and 6. FIG.

FIG. 5 is an enlarged view of the area A of FIG. 4 in which the total reflection part according to the first embodiment of the present invention is formed, FIG. 6 is an enlarged view of the area A of FIG. 4 having the total reflection part according to the second embodiment of the present invention, Fig.

≪ Embodiment 1 >

As shown in Fig. 5, the total reflection part 41 is formed inside the second substrate 40. As shown in Fig. At this time, the first substrate 22 is formed at a position corresponding to the boundary between the pixel regions 1P1 and 2P1. In other words, at the boundary between the pixel regions 1P2 and 2P2 of the second substrate 40. [ For example, at the boundary between the first pixel region 1P2 and the second pixel region 2P2 of the second substrate 40. [ That is, the total reflection part 41 is formed on the center of the black matrix 42 formed on the lower part of the second substrate 40 or the black stripe 66 formed on the second substrate 40.

In addition, the total reflection part 41 has a rod shape extending in the vertical direction at the boundary of the pixel regions 1P2 and 2P2 of the second substrate 40. [ Thus, the total reflection part 41 forms a boundary wall between the pixel regions 1P2 and 2P2 of the second substrate 40. [

At this time, the total reflection part 41 may include at least one stick 41a. In other words, a plurality of bars 41a are formed along the direction of the height H1 of the second substrate 40, and the plurality of bars 41a constitute the comb-forming part 41 to form the pixel regions 1P2, 2P2 can be formed.

The inside of the total reflection part 41 is made of, for example, air.

For example, the total reflection part 41 may be formed of at least one rectangular parallelepiped including air. Accordingly, the light incident on the total reflection part 41 on the second substrate 40 is totally reflected.

For example, when the light incident on the second pixel region 2P1 of the first substrate 22 is incident on the total reflection portion 41, the light is totally reflected by the total reflection portion 41, The first pixel region 1P2 of FIG. That is, the light of the right eye image incident on the second pixel region 2P1 of the first substrate 22 passes through the right eye retarder Rr through the second pixel region 2P2 of the second substrate 40 It is delivered only to the viewer's right eye.

≪ Embodiment 2 >

As shown in Fig. 6, the total reflection part 41 is formed inside the second substrate 40. As shown in Fig. At this time, the second substrate 40 is formed at a position corresponding to the boundary between the pixel regions 1P2 and 2P2. In other words, at the boundary between the pixel regions 1P2 and 2P2 of the second substrate 40. [ For example, at the boundary between the first pixel region 1P2 and the second pixel region 2P2 of the second substrate 40. [ That is, the total reflection part 41 is formed on the center of the black matrix 42 formed on the lower part of the second substrate 40 or the black stripe 66 formed on the second substrate 40.

The total reflection part 41 is formed of a spot row 41c in which a plurality of spots 41b are arranged in the vertical direction (the height H1 direction of the second substrate 40). At this time, the total reflection part 41 may include at least one spot column 41c. At this time, the spot rows 41c are arranged in the horizontal direction.

The inside of the total reflection part 41 is made of, for example, air.

For example, the total reflection part 41 may be formed of at least one sphere including air. Accordingly, the light incident on the total reflection part 41 on the second substrate 40 is totally reflected.

For example, when the light of the right eye image incident on the second pixel area 2P1 of the first substrate 22 enters the total reflection part 41, the light of the right eye image is totally reflected by the total reflection part 41 The first pixel region 1P2 of the second substrate 40 can not be incident. That is, the light of the right eye image incident on the second pixel region 2P1 of the first substrate 22 passes through the right eye retarder Rr through the second pixel region 2P2 of the second substrate 40 It is delivered only to the viewer's right eye.

In this case, the size of the spot 41b may be about 0.2 .mu.m to about 0.8 .mu.m. If the spot 41c includes two or more spots 41c, the spacing of the spot rows 41c may be about 1.2 mu m to about 2.0 mu m. At this time, it is preferable that the diameter of the spot 41b is 0.2um and the interval of the spot row 41c is 1.2um. In addition, the spacing of the spots 41b in the vertical direction may be about 1.2 mu m.

Hereinafter, the total reflection part 41 according to the second embodiment of the present invention will be described in more detail with reference to FIGS. 7A to 7F.

7A to 7F are simulation results showing the light path of light when the size of the spot 41b and the interval between the spot rows 41c are variously set.

Specifically, one or two spot columns 41c, each of which has four spots 41b arranged in the vertical direction, are disposed on the left and right sides of the center axis (x = 0um).

At this time, the light advances to the outside around the central axis (x = 0um), showing how much light is blocked by the spot row 41c. In other words, it is a diagram showing how the light advances inside the spot column 41c, and shows how much light travels to the outside of the spot column 41c.

That is, the more the light can not proceed to the outside, the greater the blocking effect of light. Based on the result of this experiment, it can be determined how much light is blocked by the spot row 41c when the light travels from the outside to the inside of the spot row 41c.

7A shows a case in which a spot 41b is 0.2um in size and a spot column 41c is formed in each of the left and right spots at intervals of 1.2um from the center axis (x = 0um) ) Is formed.

7B shows a case in which two spots 41c are formed at the left and right points spaced by 1.2um from the central axis (x = 0um) .

FIG. 7C shows a case in which two spots 41c are formed at the left and right points with intervals of 1.2 μm from the center axis (x = 0um) ) Is formed.

7D shows a case in which two spots 41c are formed at the left and right points with intervals of 1.2 袖 m from the center axis (x = 0 袖 m) and the total number of spots 41c ) Is formed.

7E shows a case in which two spots 41c are formed at the left and right points at intervals of 1.2 袖 m from the center axis (x = 0 袖 m) ) Is formed.

FIG. 7F shows a case in which two spot rows 41c are formed at the left and right points with a spacing of 2.0 .mu.m from the center axis (x = 0um) and a total of four rows of spots 41c ) Is formed.

Here, the light is reflected by the spot row 41c and can not proceed from the central axis (x = 0 um) to the outer periphery.

7A to 7D. In FIG. 7A, the left and right sides are approximately 2.3um. In FIG. 7B, left and right are approximately 1.8um. In FIG. 7C, left and right are approximately 2.1um. The light travels to the periphery up to about 2.5 um left and right, about 3.0 um left and right in Fig. 7e, and about 4 um left and right in Fig. 7f.

As described above, when the size of the spot 41b is 0.2um, the distance between the spots 41c is 1.2um, and two spots 41c are formed on the left and right sides, good. Therefore, it is preferable to form the spot 41b with a size of about 0.2 .mu.m and the spot column 41c with a spacing of about 1.2 .mu.m. At least two spot rows 41c That is, a total of four or more rows of spots 41c. Here, the central axis may be a boundary line of each pixel region, for example.

As described above, in the first and second embodiments of the present invention, the total reflection part 41 is formed on the second substrate 40 to induce total reflection of light, thereby improving the upper / lower viewing angle of the display panel.

Hereinafter, the method of forming the total warp portion will be described in more detail with reference to FIG.

Fig. 8 is a diagram showing a part of the laser device used for forming the total reflection part (41 in Fig. 4) as an example.

8, the laser apparatus 500 according to the third embodiment of the present invention may include a laser oscillating unit 510, a lens unit 520, and a moving support unit 530 .

The laser oscillating unit 510 generates and outputs a laser. At this time, the laser oscillating unit 510 according to the third embodiment of the present invention generates and outputs a femtosecond laser.

Femtosecond lasers are ultra-short pulse lasers with pulse emission times of 10 ^-15 m / s. In the case of using the ultrasound laser in this manner, there is hardly any by-product such as a stack of particles or a crater generated during laser processing. In addition, since the incident pulse is very short, the femtosecond laser does not cause problems such as deterioration of processing precision due to thermal diffusion during processing of the workpiece, physical / chemical change of the material, and melting of a part of the processed part of the workpiece. Accordingly, it is possible to perform a high-precision work.

The lens unit 520 adjusts the focal point of the laser so that the focal point of the laser output from the laser oscillating unit 510 can be focused on a position where the workpiece is processed.

The movement receiving portion 530 is a portion on which the workpiece is seated, and moves the workpiece up / down / left / right corresponding to the processing position of the workpiece.

The second substrate 40 is mounted on the moving support unit 530 and the lens unit 520 is mounted on the position where the total reflection unit 41 is to be formed in order to form the total reflection unit 41 on the second substrate 40. [ Focus on.

In this manner, a photonic crystal is formed by irradiating the second substrate 40 with a laser to form a total reflection part 41. At this time, the inside of the total reflection part 41 is composed of air. In other words, very fine nano holes are formed in the second substrate 40, which is a glass substrate, by using the femtosecond laser.

More specifically, when the femtosecond laser is irradiated to a position where the total reflection part 41 of the second substrate 40 is to be formed, the portion irradiated with the femtosecond laser changes from, for example, amorphous to crystalline. At this time, the density of the irradiated portion becomes larger, and the irradiated portion of the second substrate 40 is further agglomerated to form a hole.

The step of irradiating the second substrate 40 with the femtosecond laser to form the total reflection part 41 may be performed by using a structure formed on the lower part of the second substrate 40 such as a black matrix 42), a color filter layer (44 in Fig. 4), and the like.

Here, a femtosecond laser can pass through a transparent optical film.

4) is formed on the second substrate 40, a total reflection portion 41 is formed before the black stripe (66 in FIG. 4) is formed on the second substrate 40 do.

4) is not formed on the second substrate 40, the femtosecond laser is irradiated even after the formation of the optical film, for example, the first polarizing film 50 (FIG. 4) Can be formed. In this case, however, it is preferable that the femtosecond laser is irradiated to form the total reflection part 41 before forming the pattern reliader (60 in FIG. 4). This is to protect the retarder layer (64 in FIG. 4) of the patterned retarder (60 in FIG. 4).

As described above, the total reflection portion according to the first to third embodiments of the present invention is formed on the second substrate using the femtosecond laser. As the total reflection portion is formed, light incident on each pixel region of the first substrate is emitted to the corresponding region of the second substrate, thereby improving the three-dimensional crosstalk.

In addition, black stripes can be omitted.

The present invention is not limited to the above-described embodiments, and various changes and modifications may be made without departing from the spirit of the present invention.

10: Three-dimensional image display device 20: Display panel
50: polarizing film 60: pattern-retarder
22: first substrate 40: second substrate 41:
41a: rod 41b: spot 41c: spot column

Claims (8)

A display panel for displaying a left eye image and a right eye image including a first substrate defining a pixel region by intersecting gate wirings and data wirings and a second substrate formed on the first substrate;
A polarizing film formed on the second substrate;
And a patterned retarder formed on the polarizing film and including a left eye retarder for left-hand circularly polarizing the left eye image and a right eye retarder for right-hand circularly polarizing the right eye image,
A total reflection portion formed in a boundary portion of the pixel region and totally reflecting oblique incident light is formed in the second substrate,
Wherein the total reflection portion is composed of at least one pupil including air,
Wherein the at least one pupil is spaced from an upper surface and a lower surface of the second substrate
A three - dimensional image display device.
The method according to claim 1,
A black matrix may be formed on a lower portion of the second substrate corresponding to a boundary portion of the pixel region,
A black matrix is formed on a lower portion of the second substrate corresponding to a boundary portion of the pixel region and a black stripe is further formed on an upper portion of the second substrate corresponding to a boundary portion of the pixel region
A three - dimensional image display device.
delete The method according to claim 1,
Wherein the at least one pupil comprises:
The second substrate is divided into at least one rectangular parallelepiped along the height direction of the second substrate
A three - dimensional image display device.
The method according to claim 1,
Wherein the at least one pupil includes at least one spot column composed of a plurality of spots arranged along the height direction of the second substrate
A three - dimensional image display device.
6. The method of claim 5,
The diameter of the spot is 0.2 [mu] m and the interval of the spot row is 1.2 [mu] m
A three - dimensional image display device.
A display panel for displaying a left eye image and a right eye image including a first substrate for defining a pixel region by intersecting a gate wiring and a data wiring, and a second substrate having a black matrix formed thereunder corresponding to the pixel region boundary, A polarizing film formed on the second substrate; And a patterned retarder formed on the polarizing film and including a left eye retarder for left-hand circularly polarizing the left eye image and a right eye retarder for right-hand circularly polarizing the right eye image, ,
Forming the gate wiring and the data wiring on the first substrate;
Forming the black matrix on the second substrate;
Forming a polarizing film on the second substrate;
Forming a total reflection part inside the second substrate;
And forming the pattern reliader on the second substrate,
Wherein the total reflection portion is composed of at least one pupil including air,
Wherein the at least one pupil is spaced from an upper surface and a lower surface of the second substrate
A method for manufacturing a three - dimensional image display device.
8. The method of claim 7,
Wherein the step of forming the total reflection portion includes the step of irradiating light of the femtosecond laser onto the second substrate
A method for manufacturing a three - dimensional image display device.

Images