KR20150021337A - Three-dimensional image Display - Google Patents

Abstract

The three-dimensional image display apparatus according to the present invention is characterized in that when the thickness of the films adhered to the outside of the display panel is a first thickness and a second thickness, respectively, the difference between the first thickness and the second thickness is equal to or less than 10% The amount of moisture absorbing in the high humidity environment is the same, and the symmetry prevents the cap from being bent due to expansion of one side due to such symmetry. .
On the other hand, even in a low-humidity environment, since the difference between the first thickness and the second thickness is equal to or less than 10%, the amount of evaporation of moisture becomes the same, and due to the symmetry of the amount of moisture change, It is possible to prevent a cup-shaped bending phenomenon from occurring.

Description

[0001] The present invention relates to a three-dimensional image display device,

The present invention relates to a three-dimensional image display apparatus, and more particularly, to a three-dimensional image display apparatus capable of minimizing luminance unevenness and deterioration in image quality due to light leakage.

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 diode (OLED) devices have been used.

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

Generally, a stereoscopic image displaying a three-dimensional image is made by the principle of stereoscopic vision through two eyes. Specifically, since the two eyes exist at a distance of about 65 μm, even if one image is seen, the left and right eyes see different images due to the difference in positions of the 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 feeling 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 patterned retarder will be described.

1 is a perspective view of a conventional three-dimensional image display apparatus.

1, the three-dimensional image display apparatus 10 includes a display panel 20 for displaying an image, a polarizing plate 50 formed on the display panel 20, And a patterned retreader 60 formed thereon.

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, Green, and blue pixel regions R, G, and B are sequentially arranged in each pixel line Hr.

The polarizing plate 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 polarizing plate 50, and then passes through the left-eye retarder Rl of the patterned retarder 60 The right eye image displayed on the right eye pixel line Hr of the display panel 20 is linearly polarized while being passed through the one polarizing plate 50 and then the right eye retarder Rr of the pattern delta- And is 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.

On the other hand, the three-dimensional image display device having the above-described configuration is vulnerable to moisture change due to the pattern drift layer formed additionally for the three-dimensional image.

Hereinafter, the problems of the three-dimensional imaging apparatus according to the water change will be described in detail.

FIG. 2A is a cross-sectional view schematically illustrating moisture introduced into a three-dimensional image display device in a high-humidity environment, and FIG. 3B is a schematic cross-sectional view illustrating moisture evaporation in a three-dimensional image display device in a low-humidity environment.

In this case, detailed description of each element is omitted, and the same reference numerals are given to the same elements.

FIGS. 3A and 3B show experimental results of warpage of the display panel according to changes in moisture.

As shown in FIG. 2A, in the high humidity environment, the 3D image display device 10 absorbs moisture in the air. Since the humidity of the 3D image display device 10 is relatively lower than the moisture contained in the air due to the convective phenomenon, the 3D image display device 10 absorbs moisture.

When the thickness of the first polarizing plate 52 is the first thickness d1 and the thickness of the second polarizing plate 50 combined with the patterned retarder 60 is the second thickness d2, The thickness dl and the second thickness d2 are differentiated by the pattern reliader 60.

The second thickness d2 of the second polarizing plate 50 and the patterned retarder 60 is greater than the second thickness d2 of the first polarizing plate 52. In other words, It means that the amount of moisture absorbing moisture is larger than the first thickness d1 of the moisture absorbing layer.

In other words, as the thickness increases, the amount of moisture absorption increases and the second polarizing plate 50 and the pattern reliader 60 (the second polarizing plate 52) absorb the amount of moisture that can be absorbed by the first polarizing plate 52 ) Can still absorb moisture.

Therefore, since the second thickness d2 is relatively larger than the first thickness d1, the three-dimensional image display device 10 can be bent in a cap shape as shown in FIG. 3A do.

As shown in FIG. 2B, in a low-humidity environment, the three-dimensional image display apparatus 10 is caused to evaporate moisture into the atmosphere. As described above, since the humidity of the three-dimensional image display device 10 is relatively higher than that of the air due to the convective phenomenon, moisture of the three-dimensional image display device 10 is evaporated will be.

Since the combined thickness of the second polarizer 50 and the patterned retarder 60 is greater than the thickness of the first polarizer 52, the amount of moisture to be evaporated is large, and the second thickness d2 is greater than the first thickness a relatively strong shrinkage phenomenon occurs in the three-dimensional image display device 10 than in the case of the d1, so that a cup-shaped bending behavior appears in the three-dimensional image display device 10 as shown in FIG.

Accordingly, such a deflection phenomenon causes defects such as light leakage, color deviation, and the like, which makes it difficult to maintain a uniform screen quality throughout the entire display device.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and it is an object of the present invention to prevent a deflection of a three-dimensional image display device and to maintain a uniform image quality in all areas of a three-dimensional marking device.

According to an aspect of the present invention,

A display panel; A first polarizer provided on a lower portion of the display panel; A second polarizer and a pattern drifter sequentially disposed on the display panel, wherein when the thickness of the first polarizer is defined as a first thickness, and the thickness of the second polarizer and the pattern drift is defined as a second thickness Wherein the first thickness and the second thickness are equal to each other or have a thickness difference of less than 10%.

The first polarizer includes a first polarizer, a first protective film attached on the first polarizer, a second protective film below the first polarizer, and a first adhesive on the first protective film The second polarizing plate, the third polarizing element, the third polarizing element, the third polarizing element, the fourth polarizing element, and the fourth polarizing element, and the second polarizing element, .

Wherein the pattern reliader comprises a retarder layer, a fifth protective film on the retarder layer, and a third adhesive agent on the lower portion of the retarder layer.

The thickness of the first protective film of the first polarizing plate may be reduced and the thickness of the third and fourth protective films of the second polarizing plate may be decreased to reduce the thickness of the first polarizing plate, And the first thickness of the first polarizing element is 25um, the first protective film is 60um, the second protective film is 80um, and the second thickness is 10um or less. , The first polarizer and the patterned retarder have a second thickness of 25 mu m, the third protective film is 40 mu m, the fourth protective film is 40 mu m, the second polarizer is the second polarizer, 25um for the pressure-sensitive adhesive, 1um for the retarder layer, 40um for the fifth protective film, and 196um for the third pressure-sensitive adhesive.

The thickness of the first and second protective films of the first polarizing plate may be reduced and the thickness of the third and fourth protective films and the second pressure sensitive adhesive of the second polarizing plate may be reduced, Wherein the first thickness of the patterned retarder is reduced to less than 10% by decreasing the thickness of the third pressure sensitive adhesive, and the first thickness of the first polarizer The first protective film is 60um, the second protective film is 60um, the first pressure sensitive adhesive is 25um, and the second thickness of the second polarizing plate and the pattern reliader is 25um, The second protective film is 40um, the third protective film is 40um, the fourth protective film is 40um, the second adhesive is 18um, the retarder is 1um, the fifth protective film is 40um, and the third adhesive is 18um.

The thickness of the first and second protective films of the first polarizing plate may be reduced and the thickness of the second polarizing elements of the second polarizing plate and the third and fourth protective films may be And the thickness of the third pressure sensitive adhesive layer of the pattern reliader is reduced so that the first thickness and the second thickness are different by 10% or less, and the first thickness of the first polarizer plate is less than the first thickness The first polarizing plate and the patterned retarder have a thickness of 25 μm, the first protective film has a thickness of 60 μm, the second protective film has a thickness of 60 μm, and the first adhesive has a thickness of 25 μm. The device is 12 μm, the third protective film is 40 μm, the fourth protective film is 40 μm, the second pressure sensitive adhesive is 25 μm, the retarder layer is 1 μm, the fifth protective film is 40 μm, and the third pressure sensitive adhesive is 18 μm.

The display panel may include a first substrate on which a plurality of gate wirings and a plurality of data wirings are formed to intersect with each other to define a plurality of pixel regions and a plurality of color filter patterns formed on the first substrate, And a second substrate, wherein the first to fifth protective films are formed of TAC or Acryl base material.

As described above, in the three-dimensional image display apparatus according to the present invention, when the thicknesses of the films adhered to the outside of the display panel are respectively a first thickness and a second thickness, a difference between the first thickness and the second thickness Is equal to or less than 10%, the difference in shrinkage ratio due to the amount of moisture change is constant, and it is possible to prevent the panel from being warped.

Therefore, it is possible to prevent the phenomenon of light leakage and color deviation from occurring, and it is possible to maintain a uniform screen quality over the entire area of the three-dimensional image display device.

FIG. 1 is a perspective view of a conventional three-dimensional image display apparatus using polarizing glasses.
FIG. 2A is a cross-sectional view schematically illustrating moisture introduced into a three-dimensional image display device in a high-humidity environment, and FIG. 2B is a schematic cross-sectional view illustrating moisture evaporation in a three-dimensional image display device in a low-humidity environment.
FIG. 3A shows an experimental result in which the display panel is warped according to FIG. 2A, and FIG. 3B shows an experimental result in which the display panel is warped in accordance with FIG.
4 is a cross-sectional view of a three-dimensional image display apparatus according to an embodiment of the present invention.
5 is a graph showing the calculated values obtained by integrating the actual acceptance results of Table (1).
6 is a cross-sectional view illustrating various embodiments of a three-dimensional image display apparatus according to an embodiment of the present invention.

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the present invention will be described in detail with reference to the preferred embodiments of the present invention with reference to the accompanying drawings.

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

The display panel 120 includes a first substrate 122 and a second substrate 140 facing each other and a liquid crystal layer 148 formed between the first and second substrates 122 and 140 ).

A gate electrode 124 connected to a gate wiring and a gate wiring is formed on the first substrate 122 and a gate insulating layer 126 is formed on the gate wiring and the gate electrode 124.

A semiconductor layer 128 is formed on the gate insulating layer 126 corresponding to the gate electrode 124. A source electrode 132 and a drain electrode 134 are formed on the semiconductor layer 128, (Not shown) connected to the data line 132 is formed.

A data line (not shown) intersects a gate line (not shown) to define a pixel region.

Here, the gate electrode 124, the semiconductor layer 128, and the source and drain electrodes 132 and 134 constitute a thin film transistor T.

A protective layer 136 is formed on the source and drain electrodes 132 and 134 and the data line (not shown), and the protective layer 136 includes a drain contact hole 136a exposing the drain electrode 134 .

A pixel electrode 138 connected to the drain electrode 134 through the drain contact hole 136a is formed on the protection layer 136 in the pixel region.

A black matrix 142 corresponding to the gate lines (not shown), the data lines (not shown) and the thin film transistors T is formed under the second substrate 140, A color filter layer 144 is formed under the first substrate 140 exposed through the opening of the black matrix 142 and the lower portion of the first substrate 142. Here, the opening corresponds to the display area DA and the black matrix 142 corresponds to the non-display area NDA.

Although not shown, the color filter layer 144 includes red, green and blue color filters respectively corresponding to pixel regions.

A transparent common electrode 146 is formed under the color filter layer 144. Although not shown here, an overcoat layer may be further formed between the color filter layer 144 and the common electrode 146 for protecting the color filter layer 144 and for planarizing the surface.

The liquid crystal layer 148 is positioned between the pixel electrode 138 of the first substrate 122 and the common electrode 146 of the second substrate 140. An alignment film for determining the initial alignment of the liquid crystal molecules is formed between the liquid crystal layer 148 and the pixel electrode 138 and between the liquid crystal layer 148 and the common electrode 146.

The pixel electrode 138 and the common electrode 146 are formed on the first and second substrates 122 and 140 respectively. However, the pixel electrode 138 and the common electrode 146 may be formed on the first substrate 122 As shown in FIG.

A first polarizer 152 is disposed under the first substrate 122 and a second polarizer 150 is disposed over the second substrate 140. The first and second polarizers 152 and 150 transmit linearly polarized light parallel to the light transmission axis and the light transmission axis of the first polarizer 152 is perpendicular to the light transmission axis of the second polarizer 150.

The first polarizing plate 152 may be composed of a TAC film 252a (see FIG. 6), a polarizing element 252b (see FIG. 6), an acrylic film 252c (see FIG. 6) and an adhesive 252d . The detailed description will be given in Fig. 6 which will be described later.

The first polarizing plate 152 having such a structure is attached to the lower portion of the display panel 120 through the adhesive 252d (see FIG. 6).

Although not shown, a backlight unit (not shown) is disposed under the first polarizer 152 to supply light to the display panel 120.

6), a polarizing element 250c (see FIG. 6), a TAC film 250d (see FIG. 6), an acrylic film 250b A pattern reliader 160 is attached to the upper portion of the second polarizer 150. The pattern reliader 160 includes a protective film 162 and a protective film 162 (see FIG. 6) And a pressure sensitive adhesive layer 168 under the retarder layer 164. The retarder layer 164 includes a left-eye retarder R1 and a right-eye retarder Rr alternately arranged in the vertical direction.

The left-eye retarder Rl and the right-eye retarder Rr have phase retardation of? / 4 wavelength and the optical axis thereof is +45 degrees and -45 degrees, respectively, of the linearly polarized light, And can be arranged in a road.

On the other hand, when the thickness of the first polarizer 152 is referred to as a first thickness, and the combined thickness of the patterned retarder 160 and the second polarizer 150 is a second thickness, the first thickness is approximately 170 [um] to about 226 [um], and the second thickness may be about 176 [um] to 250 [um] according to the configuration.

That is, the first thickness and the second thickness are equal to each other, or the difference between the first thickness and the second thickness is less than 10%, so that the amount of moisture change can be made symmetrical. If the symmetry is deviated, the amount of change in moisture absorption and emission is different in the process of absorbing and discharging moisture from the polarizer and the pattern drifter depending on the change of the moisture content contained in the air, ) Is generated. Such a difference is caused by a problem of leakage of light or color deviation in the display panel 120, and as a result, it is difficult to maintain a uniform screen quality throughout the entire display device.

On the other hand, the three-dimensional image display apparatus 100 according to the present invention has a difference in thickness between the first thickness and the second thickness which is equal to or less than 10%, and has symmetry with respect to the amount of moisture change, The moisture absorbing amount becomes the same, and it is possible to prevent the cap from being bent due to the expansion of either one due to the symmetry.

On the other hand, even in a low-humidity environment, since the difference between the first thickness and the second thickness is equal to or less than 10%, the amount of evaporation of moisture becomes the same, and due to the symmetry of the amount of moisture change, It is possible to prevent a cup-shaped bending phenomenon from occurring.

As a result, it is possible to prevent the phenomenon of light leakage and color deviation of the three-dimensional image display device 100, and it is possible to maintain a uniform image quality over the entire area of the display panel 120 .

The amount of deflection due to the difference between the first thickness and the second thickness according to the environmental change will be described in detail with reference to Table (1) below. However, since it is a numerical value for simple comparison according to environmental change, the experimental result should not be interpreted as an embodiment of the present invention.

_{* Negative numbers Cup-shaped  And the positive number means Cap-shaped  .} Thickness difference [%] 0 8 12 20 41 58 Film thickness
[um] Second thickness
(Display panel upper film) 150 130 170 150 255 360 First thickness
(Display panel lower film) 150 120 150 120 150 150 Difference [um] 0 10 20 30 105 210 Amount of warpage
[mm] Low humidity 1.3 0.6 1.6 1.9 -1.6 -2.0 High humidity 1.2 0.9 2.2 3.8 2.6 4.3 Displacement [mm] -0.1 0.3 0.6 1.9 4.2 6.3

In addition, since the first and second thicknesses are constant but the amount of deflection does not have a value of 0 [mm], it means that the plate is not a perfect plate due to the inherent characteristics of the polarizing plate, You should not.

Furthermore, it is judged that the bending amount [mm] when the first thickness and the second thickness are constant at 150 [mu] m is 1.3 [mm] under the low humidity condition and 1.2 [mm] under the high humidity condition, (High humidity - low humidity) is -0.1 [mm] as the reference value.

At this time, when the first thickness and the second thickness are constant, the moisture absorption and discharge are constant, and the displacement amount hardly shows the difference.

Referring to Table 1, since the second thickness is 130 [mu] m and the first thickness is 120 [mu] m, the warpage is reduced because the thickness is not thicker than the reference thickness 150 [ 2 It can be seen that the displacement amount is 0.3 [mm], which is larger than the reference displacement of -0.1 [mm] due to the difference in thickness.

Next, when the second thickness is 170 [mu] m and the first thickness is 150 [mu] m, since the second thickness is thicker than the first thickness, the display panel upper film having the second thickness under high- It is possible to confirm that the expansion of the upper film of the display panel becomes stronger and 2.2 [mm], which is more than the reference bending amount of 1.2 [mm], can be confirmed. It is confirmed that the display panel upper film is more shrunk and the warping amount in the case of high humidity is changed from 2.2 [mm] to 1.6 [mm] since the display panel upper film generates moisture discharge more than the display panel lower film.

This indicates that a cap-type bending occurred strongly in the high humidity, and a cup-shaped bending occurred in the low humidity, and it is seen that it is numerically decreased, but it is actually 0.6 [mm] have. That is, it can be judged that a cap-shaped bending has occurred when the displacement is increased from the reference displacement amount of 0.1 [mm].

Next, even when the second thickness is 150 [mu] m and the first thickness is 120 [mu] m, the moisture absorption of the display panel upper film becomes larger under the high humidity condition as described above, And 3.8 [mm], which is greater than the reference deflection amount of 1.2 [mm], and when environmental changes occur under conditions of high humidity and low humidity, shrinkage of the upper panel of the display panel becomes stronger, [mm].

Next, when the second thickness is 255 [mu] m and the first thickness is 150 [mu] m, it can be confirmed that the reference bending amount is 2.6 [mm] higher than the reference bending amount 1.2 [mm] The change from 2.6 [mm] to -1.6 [mm] can be confirmed, and the displacement amount is also increased to 4.2 [mm].

On the other hand, the display panel may include an air gap when a polarizing plate is attached. Since the air gap is designed to be 0.5 [mm], the amount of deflection of the upper and lower films of the display panel with respect to environmental changes is controlled within 0.5 [mm] It can have an advantage in the mechanical response of the image display device.

5 is a graph showing the calculated values obtained by integrating the experimental results of Table (1).

The y-axis shows the amount of deflection [mm], and the x-axis shows the difference [%] between the first thickness and the second thickness.

As shown in the figure, it can be seen that the amount of flexural displacement linearly increases within a range of 0 [%] to 10 [%] within 0.5 [mm] and 10 [%] or more.

Therefore, it is preferable to maintain the thickness difference between the first polarizing plate and the second polarizing plate within 10% according to the above-described experimental results.

Hereinafter, various embodiments for maintaining the difference between the first thickness and the second thickness within 10% will be described.

6A to 6C are cross-sectional views illustrating a three-dimensional image display apparatus according to an exemplary embodiment of the present invention.

6A, the three-dimensional image display device 200 mainly includes a first polarizing plate 252a, a display panel 220, a second polarizing plate 250a, and a pattern reliader 260. As shown in FIG.

The first polarizing plate 252 may include a TAC film 252a, a polarizing element 252b, an acrylic film 252c, and an adhesive 252d.

The TAC film 252a is optically isotropic and has transparency and mechanical strength, and is used as a protective film for the polarizing element 252b because of its good dimensional stability against changes in temperature and humidity.

The polarizing element 252b is a device having a characteristic in which a transmission axis is formed in one direction and only light of a component flattened to the transmission axis is transmitted. The polarizing element 252b is manufactured by stretching a PVA resin absorbing iodine with a strong tension.

As the PVA resin, polyvinyl acetate, which is a homopolymer of vinyl acetate, a copolymer of vinyl acetate and another monomer copolymerizable with the vinyl acetate, and the like can be used. Examples of other monomers copolymerizable with vinyl acetate at this time include unsaturated carboxylic acids, unsaturated sulfonic acids, olefins, vinyl ethers, and acrylamides having an ammonium group.

On the other hand, the TAC film 252a has a high proportion of the polarizer cost structure. In the polarizer for the TN liquid crystal panel, the proportion of the TAC film is 56%, and the proportion of the TAC film in the VA polarizer is 42% . Further, there is a problem of causing color difference.

Accordingly, efforts to reduce or eliminate the TAC film have been focused on reducing the panel cost. Representative examples of the TAC film include an acrylic film having the same characteristics as the TAC film, i.e., isotropic, high transparency and high mechanical strength 252c are used.

The second polarizing plate 250 may include a pressure sensitive adhesive 250a, an acrylic film 250b, a polarizing element 250c, and a TAC film 250d.

The pattern reliader 260 may include a pressure sensitive adhesive 260a, a retarder layer 260b, and a TAC film 260c.

The first polarizing plate 252 is designed with a TAC film 252a of 80 [um], a polarizing element 252b of 25 [um], an acrylic film 252c of 60 [um], and an adhesive 252d of 25 [ Lt; RTI ID = 0.0 > 190 < / RTI >

The second polarizing plate 250 can be designed with the pressure sensitive adhesive 250a of 25 um, the acrylic film 250b of 40 um, the polarizing element 250c of 25 um, and the TAC film 250d of 40 um .

The patterned retarder 260 may be composed of a pressure sensitive adhesive 260a of 25 [um], a retarder layer 260b of 1 [um], and a TAC film 260c of 40 [um].

The second thickness 270 combined with the structure of the second polarizing plate 250 and the patterned retarder 260 is 196 um and the first thickness 252 is 190 um. Has a difference of about 2%. That is, it has symmetry of the amount of moisture change, and the warping phenomenon can be minimized.

6B, the first polarizing plate 352 includes a TAC film 352a 60 [um], a polarizing element 352b 25 [um], an acrylic film 352c 60 [um], a pressure sensitive adhesive 352d 25 [um] and can have a first thickness of 170 [mu] m.

The second polarizing plate 350 may be designed with the pressure sensitive adhesive 350a 18 um, the acrylic film 350b 40 um, the polarizing element 350c 25 um, and the TAC film 350d 40 um .

The pattern reliader 360 may be composed of the adhesive agent 360a 18 [um], the retarder layer 360b 1 [um], and the TAC film 360c 40 [um].

The second thickness 370 combined with the configuration of the second polarizing plate 350 and the patterned retarder 360 is 182 [mu] m, the first thickness 352 is 170 [mu] Has a difference of about 6%.

6C, the first polarizing plate 452 includes a TAC film 452a 60 [um], a polarizing element 452b 25 [um], an acrylic film 452c 60 [um], a pressure sensitive adhesive 452d 25 [um] and can have a first thickness of 170 [mu] m.

The second polarizing plate 450 may be designed to have a thickness of 25 [um] for the pressure-sensitive adhesive 450a, 40 [um] for the acrylic film 450b, 12 [um] for the polarizing element 450c, and 40 [ .

The pattern reliader 460 may be composed of a pressure sensitive adhesive 460a 18 um, a retarder layer 460b 1 um, and a TAC film 460c 40 um.

The second thickness 470 of the second polarizer 450 and the patterned retarder 460 is 176 um and the first thickness 452 is 170 um. Has a difference of about 3.5%.

Therefore, under the low humidity condition, the first polarizer having the first thickness, the patterned retarder having the second thickness, and the second polarizer are caused to discharge the moisture in the same manner, , It is possible to prevent a warp phenomenon from occurring.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments.

NDA: Non-display area DA: Display area
Hl: Left eye horizontal pixel line Hr: Right eye horizontal pixel line
Rl: Left eye retarder Rr: Right eye retarder
100: three-dimensional image display device 120: display panel
122: first substrate 124: gate electrode
126: insulating layer 128: semiconductor layer
132: source electrode 134: drain electrode
136: protection layer 136a: drain contact hole
138: pixel electrode 140: second substrate
142: black matrix 144: color filter layer
146: common electrode 148: liquid crystal layer
150: second polarizer 152: first polarizer
160: pattern-retarder 162: protective film
164: Retarder layer 168: Adhesive layer

Claims (11)

A display panel;
A first polarizer provided on a lower portion of the display panel;
And a second polarizer and a patterned retarder sequentially disposed on the display panel,
When the thickness of the first polarizer is defined as a first thickness, and the thickness of the second polarizer and the pattern reliader is defined as a second thickness, the first thickness and the second thickness may be equal to or less than 10% Dimensional image display device.
The method according to claim 1,
The first polarizer includes a first polarizer, a first protective film attached on the first polarizer, a second protective film below the first polarizer, and a first adhesive on the first protective film Located,
Wherein the second polarizing plate comprises a second polarizing element, a third protective film on the second polarizing element, a fourth protective film below the third polarizing element, and a second adhesive on the bottom of the fourth protective film Wherein the three-dimensional image display device is a three-dimensional image display device.
3. The method of claim 2,
Wherein the pattern reliader comprises a retarder layer, a fifth protective film on the retarder layer, and a third adhesive agent on the lower portion of the retarder layer.
The method according to claim 2 or 3,
The thickness of the first protective film of the first polarizing plate is reduced and the thickness of the third and fourth protective films of the second polarizing plate is reduced so that the first thickness and the second thickness have a difference of not more than 10% Dimensional image display device.
5. The method of claim 4,
Wherein the first polarizer has a first thickness of 25 mu m for the first polarizing element, 60 mu m for the first protective film, 80 mu m for the second protective film, 190 mu m for the first adhesive agent,
The second polarizer and the pattern reliader had a second thickness of 25 mu m for the second polarizing element, 40 mu m for the third protective film, 40 mu m for the fourth protective film, 25 mu m for the second adhesive, 1 mu m for the retarder layer, The protective film is 40um, and the third adhesive is 25um, which is 196um.
The method of claim 3,
The thickness of the first and second protective films of the first polarizer is reduced, the thickness of the third and fourth protective films and the second adhesive of the second polarizer are reduced, and the thickness of the third adhesive of the pattern reliader Wherein the first thickness and the second thickness are different from each other by less than 10%.
The method according to claim 6,
Wherein the first polarizer has a first thickness of 25 mu m for the first polarizing element, 60 mu m for the first protective film, 60 mu m for the second protective film, 170 mu m for the first adhesive agent,
The second polarizer and the pattern reliader had a second thickness of 25 mu m for the second polarizing element, 40 mu m for the third protective film, 40 mu m for the fourth protective film, 18 mu m for the second pressure sensitive adhesive, 1 um for the retarder layer, The protective film is 40um, and the third adhesive is 18um, which is 182um.
The method of claim 3,
The thickness of the first and second protective films of the first polarizer is reduced, the thickness of the second polarizer of the second polarizer and the third and fourth protective films are reduced, Wherein the first thickness and the second thickness are different from each other by less than 10%.
9. The method of claim 8,
Wherein the first polarizer has a first thickness of 25 mu m for the first polarizing element, 60 mu m for the first protective film, 60 mu m for the second protective film, 170 mu m for the first adhesive agent,
The second polarizing plate and the pattern reliader had a second thickness of 12 um, a third protective film of 40 um, a fourth protective film of 40 um, a second pressure sensitive adhesive of 25 um, a retarder layer of 1 um, The protective film is 40um, and the third adhesive is 18um, which is 176um.
The method according to claim 1,
The display panel includes a first substrate on which a plurality of gate wirings and a plurality of data wirings crossing each other are defined to define a plurality of pixel regions and a second substrate on which a plurality of color filter patterns are formed, A three-dimensional image display device comprising a substrate.
The method of claim 3,
The first to fifth protective films may be a three-dimensional image display device made of TAC or Acryl substrate

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