KR20120069341A - Stereoscopic image display and method for manufacturing of the same - Google Patents

Abstract

PURPOSE: A stereoscopic image display and a method for manufacturing the same are provided to improve the vertical angle of view of a stereoscopic image display by forming a polarizing plate and a patterned retarder in a substrate. CONSTITUTION: A stereoscopic image display(200) comprises a display panel(210), a first polarizing plate(230), a patterned retarder(250), and polarizing glasses(280). The display panel is formed of a liquid crystal display panel, a field emission display panel, a plasma display panel, or an electroluminescent panel. The patterned retarder and the polarizing glasses spatially separate left- and right-eye images to obtain binocular parallax. The first polarizing plate is formed of an analyzer attached to the top plate of the display panel. The patterned retarder has first and second retarder patterns which are alternately arranged line by line.

Description

Stereoscopic Image Display and Method for Manufacturing the Same {Stereoscopic Image Display And Method For Manufacturing Of The Same}

The present invention relates to a stereoscopic image display device and a manufacturing method thereof, and more particularly, to a stereoscopic image display device and a method for manufacturing the same that can improve the vertical viewing angle of the stereoscopic image.

The stereoscopic image display device implements a stereoscopic image using a binocular parallax technique or an autostereoscopic technique.

The binocular parallax method uses a parallax image of the left and right eyes with a large stereoscopic effect, and there are glasses and no glasses, both of which are put to practical use. The spectacle method displays a polarization direction of the left and right parallax images on a direct-view display device or a projector by changing the polarization direction or time division method, and realizes a stereoscopic image using polarized glasses or liquid crystal shutter glasses. In the autostereoscopic method, an optical plate such as a parallax barrier for separating an optical axis of a left and right parallax image is generally provided in front of or behind a display screen.

1 illustrates a conventional stereoscopic image display device.

Referring to FIG. 1, the stereoscopic image display device 100 of the spectacle type includes a lower substrate 110 including a TFT array, an upper substrate 120 including a color filter 130, and a black matrix 140, and an upper substrate. The liquid crystal layer 150 is interposed between the 120 and the lower substrate 110.

The upper polarizer 160a is positioned on the upper substrate 120, and the lower polarizer 160b is positioned below the lower substrate 110 to polarize light. The patterned retarder 170 is positioned on the upper polarizing plate 160a, and the surface treated film 180 is positioned on the patterned retarder 170.

The stereoscopic image display apparatus 100 configured as described above alternately displays a left eye image and a right eye image, and switches polarization characteristics incident on the polarizing glasses through the pattern retarder 170. Through this, the spectacle method can realize a stereoscopic image by spatially dividing the left eye image and the right eye image.

However, in the stereoscopic image display device, the upper and lower viewing angles are determined by the size of the black matrix and the distance between the color filter and the patterned retarder. In the conventional stereoscopic image display apparatus, the upper substrate and the polarizing plate are positioned between the color filter and the patterned retarder, so that the vertical viewing angle is narrow even when the upper substrate and the polarizer are thinned.

The present invention provides a stereoscopic image display device and a method of manufacturing the same, which can improve the vertical viewing angle by forming a polarizing plate and a patterned retarder in a substrate.

In order to achieve the above object, a stereoscopic image display device according to an embodiment of the present invention is a lower substrate including a TFT array, a liquid crystal layer located on the lower substrate, an overcoat layer located on the liquid crystal layer, The color filter layer may be disposed on an overcoat layer, the polarizer may be disposed on the color filter layer, the patterned retarder may be disposed on the polarizer, and the upper substrate may be disposed on the patterned retarder.

The color filter layer may include a black matrix.

The polarizer may be a wire grid type or a guest-host type.

The patterned retarder may include a reactive mesogen.

The patterned retarder includes first retarder patterns and second retarder patterns having optical axes orthogonal to each other, and converts light of a left eye image transmitted through the polarizer into first polarized light and converts light of a right eye image into a second polarizer. Can be converted to polarized light.

In addition, the stereoscopic image display device according to an embodiment of the present invention is a lower substrate including a TFT array, a liquid crystal layer positioned on the lower substrate, an overcoat layer located on the liquid crystal layer, the overcoat layer The polarizing plate may include a color filter layer on the polarizing plate, a patterned retarder on the color filter layer, and an upper substrate on the patterned retarder.

In addition, the stereoscopic image display device according to an embodiment of the present invention is a lower substrate including a TFT array, a liquid crystal layer positioned on the lower substrate, an overcoat layer located on the liquid crystal layer, the overcoat layer The polarizing plate may include a patterned retarder positioned on the polarizing plate, a color filter layer positioned on the patterned retarder, and an upper substrate positioned on the color filter layer.

In addition, the method of manufacturing a stereoscopic image display device according to an embodiment of the present invention comprises the steps of forming a lower substrate including a TFT array, forming a patterned retarder on the upper substrate, on the patterned retarder Forming a polarizing plate, forming a color filter layer on the polarizing plate, forming an overcoat layer on the color filter layer, and bonding the lower substrate and the upper substrate to interpose a liquid crystal layer. have.

The polarizing plate may be formed in a wire grid type or a guest-host type.

The patterned retarder may be aligned by coating a reactive mesogen and irradiating polarized UV.

 In the stereoscopic image display device according to an embodiment of the present invention, the distance between the color filter layer and the patterned retarder may be reduced by forming a polarizer and a patterned retarder between the liquid crystal layer and the upper substrate. Accordingly, the angle of the light passing through the patterned retarder from the color filter layer may be increased, and the vertical viewing angle of the stereoscopic image display device may be improved.

Further, by reducing the distance between the color filter layer and the patterned retarder, it is possible to form a very small width of the black matrix by reducing the possibility of cross talk. As a result, the width of the black matrix is reduced, which has the advantage of improving the aperture ratio of the display device.

1 is a view showing a conventional stereoscopic image display device.
2 is a view showing a stereoscopic image display device according to an embodiment of the present invention.
3 is a view showing a stereoscopic image display device according to a first embodiment of the present invention.
4A, 4B, and 5 are views illustrating a manufacturing method of a stereoscopic image display device according to a first embodiment of the present invention for each process.
6 illustrates a stereoscopic image display device according to a second embodiment of the present invention.
7 illustrates a stereoscopic image display device according to a third exemplary embodiment of the present invention.
8 is a view showing a conventional stereoscopic image display device and a stereoscopic image display device according to a first embodiment of the present invention.
9 is a photograph showing a patterned retarder of the stereoscopic image display device according to the first embodiment of the present invention.
FIG. 10 is a photograph showing a left circle and a right circle polarization of a stereoscopic image display device according to a first embodiment of the present invention; FIG.

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

2 is a diagram illustrating a stereoscopic image display device according to an exemplary embodiment.

Referring to FIG. 2, the stereoscopic image display apparatus 200 according to an exemplary embodiment of the present invention includes a display panel 210, a first polarizing plate 230, a patterned retarder 250, and polarizing glasses 280. do.

The display panel 210 is not only a liquid crystal display panel but also another flat panel display device such as a field emission display device, a plasma display panel, and an electroluminescence device (EL). Can be implemented.

When the display panel 210 is implemented as a liquid crystal display panel, the 3D image display device 200 includes a backlight unit disposed under the display panel 210, and a second panel disposed between the display panel 210 and the backlight unit. It further comprises a polarizing plate. The patterned retarder 250 and the polarizing glasses 280 are stereoscopic image driving elements to realize binocular disparity by spatially separating a left eye image and a right eye image.

The display panel 210 has two glass substrates and a liquid crystal layer interposed therebetween. A TFT array (Thin Film Transistor Array) is formed on the lower substrate. The TFT array includes a plurality of data lines supplied with R, G, and B data voltages, a plurality of gate lines (or scan lines) and data lines intersecting the data lines and supplied with a gate pulse (or scan pulse). A plurality of TFTs (Thin Film Transistor) formed at intersections of the gate lines and the gate lines, a plurality of pixel electrodes for charging the data voltage in the liquid crystal cells, and a storage capacitor connected to the pixel electrodes to maintain the voltage of the liquid crystal cell (Storage Capacitor) and the like.

A color filter array is formed on the upper substrate. The color filter array includes a black matrix, a color filter, and the like. The common electrode forming an electric field facing the pixel electrode is formed on the upper glass substrate in a vertical electric field driving method such as twisted nematic (TN) mode and vertical alignment (VA) mode, and is in the in plane switching (IPS) mode and the FFS (Fringe). It is formed on the lower substrate together with the pixel electrode in a horizontal electric field driving method such as a field switching mode.

The first polarizer 230 is attached to the upper substrate, and the second polarizer is attached to the lower substrate. An alignment layer for setting a pretilt angle of the liquid crystal is formed on the glass substrates in contact with the liquid crystal layer, and column spacers are formed between the glass substrates to maintain a cell gap of the liquid crystal cell.

The left eye image L and the right eye image R are alternately displayed in the form of a line by line in the display panel 210.

The upper polarizer 230 is an analyzer attached to the upper substrate of the display panel 210 to transmit only a specific linearly polarized light from the incident light transmitted through the liquid crystal layer of the display panel 210.

The patterned retarder 250 includes first retarder patterns and second retarder patterns that are alternately arranged in a line by line form. The retarder patterns are preferably arranged in line by line so as to form (+) 45 degrees and (−) 45 degrees with the absorption axis of the polarizer 230.

Each of the retarder patterns uses a birefringence medium to delay the phase of the light by λ (wavelength) / 4. The optical axis of the first retarder pattern and the optical axis of the second retarder pattern are perpendicular to each other.

Therefore, the first retarder pattern is disposed to face the line on which the left eye image is displayed on the display panel 210 to convert the light of the left eye image into first polarization (circular polarization or linear polarization). The second retarder pattern is disposed on the display panel 210 so as to face the line on which the right eye image is displayed to convert light of the right eye image into second polarization (circular polarization or linear polarization).

For example, the first retarder pattern may be implemented as a polarization filter that transmits left circularly polarized light, and the second retarder pattern may be implemented as a polarization filter that transmits right circularly polarized light.

A polarizing film for passing only the first polarization component is adhered to the left eye of the polarizing glasses 280, and a polarizing film for passing only the second polarization component is adhered to the right eye of the polarizing glasses 280. Therefore, the observer wearing the polarizing glasses 280 sees only the left eye image to the left eye, and only the right eye image to the right eye, so that the image displayed on the display panel 210 is felt as a stereoscopic image.

3 is a diagram illustrating a stereoscopic image display device according to a first embodiment of the present invention. In the following descriptions overlapping with the description of the above-described components will be omitted.

Referring to FIG. 3, the stereoscopic image display device 300 according to the first embodiment of the present invention may include a lower substrate 310 including a TFT array, a liquid crystal layer 320 positioned on the lower substrate 310, The overcoat layer 330 on the liquid crystal layer 320, the color filter layer 340 on the overcoat layer 330, the upper polarizer 350a on the color filter layer 340, and the upper portion. The patterned retarder 360 may be disposed on the polarizer 350a and the upper substrate 380 may be disposed on the patterned retarder 360.

As described above, the patterned retarder 360 is disposed to face the line on which the left eye image is displayed, and converts the light of the left eye image into first polarization (circular polarization or linear polarization), and the line on which the right eye image is displayed. Disposed oppositely to convert the light of the right eye image into a second polarization (circular polarization or linear polarization). For example, the patterned retarder 360 may be implemented as a polarization filter that transmits left circularly polarized light and a polarization filter that transmits right circularly polarized light.

In addition, the patterned retarder 360 may be formed by aligning a reactive liquid crystal (reactive mejogen) in a specific direction. A detailed description thereof will be described later.

A lower polarizer 350b may be further included below the lower substrate 310. The upper polarizing plate 350a and the lower polarizing plate 350b absorb one component of the white light which is not polarized by the conjugated structure of the oriented dichroic material or the oriented polymer chain itself, and transmit the other component perpendicular to the other. It plays a role.

As the upper polarizing plate 350a and the lower polarizing plate 350b, for example, an iodine polarizing film, a dye polarizing film, a polyene polarizing film, or the like can be used. The iodine-based polarizing film exhibits polarization by being oriented by a polyvinyl alcohol (PVA) chain in which iodine ion chains are oriented, and the dye-based polarizing film is also formed in a PVA chain in which a dichroic dye is stretched orientated. By showing orientation, polarization is exhibited. On the other hand, a polyene polarizing film forms a polyene by dehydration reaction of a PVA film or dehydrochlorination reaction of a PVC film, and shows polarization property.

The upper polarizer 350a and the lower polarizer 350b have an absorption axis and a polarization axis. The absorption axis is an axis in which iodine ion chains are stretched and oriented, and one of two vertical components of light oscillating in an arbitrary direction is upper It is an axis that dissipates the light component in the process of interacting with the electrons of the polarizing plate 350a and the lower polarizing plate 350b to change the electrical energy of the light into the energy of the electron. The polarization axis is an axis perpendicular to the absorption axis and transmits light oscillating in the polarization axis direction.

In addition, the upper polarizer 350a and the lower polarizer 350b may be made of a wire grid type or a reactive liquid crystal type. Description of this will be described in detail in the manufacturing method to be described later.

The color filter layer 340 serves to convert light emitted from the backlight unit and transmitted through the liquid crystal layer 320 into red, green, and blue. In addition, the color filter layer 340 has a black matrix 345 positioned therein to distinguish the left eye image from the right eye image.

The overcoat layer 330 serves to reduce the step of the color filter layer 340 and to protect the color filter layer 340.

In the stereoscopic image display device 300 according to the first exemplary embodiment of the present invention, the polarizing plate 350a and the patterned retarder 360 are positioned between the upper substrate 380 and the liquid crystal layer 320. As a result, the distance between the color filter layer 340 and the patterned retarder 360 may be reduced.

Accordingly, the angle of the light passing through the patterned retarder 360 from the color filter layer 340 may be increased, thereby improving the vertical viewing angle of the stereoscopic image display device.

4A, 4B, and 5 are diagrams illustrating a method of manufacturing a stereoscopic image display device according to a first embodiment of the present invention, by process. In the following first embodiment, the patterned retarder may be formed by two methods.

First, referring to FIG. 4A, a reactive liquid crystal 361 is coated on the upper substrate 380. The reactive liquid crystal 361 is a thin, coatable material having birefringence properties, and has a acrylic reactor capable of reacting with ultraviolet rays.

The reactive liquid crystal 361 is dissolved in an organic solvent and coated on the upper substrate 380. Subsequently, the organic solvent is removed by drying at a temperature of 120 degrees for 3 minutes.

Next, referring to FIG. 4A (b), a polarized ultraviolet light (UV) is irradiated to a desired area using a mask 369 and fired to form a first patterned retarder 363. The reactive liquid crystal 361 irradiated with polarized ultraviolet light forms an anisotropic solid phase through UV polymerization, and thus is aligned in a specific direction. At this time, the orientation of the first patterned retarder 363 is formed to be (+) 45 degrees with the absorption axis of the polarizing plate to be formed later.

Next, referring to FIG. 4A (c), a polarized ultraviolet ray is irradiated to a region other than the first patterned retarder 363 using the mask 369 to form a second patterned retarder 364. . At this time, the orientation of the second patterned retarder 364 is formed to form (-) 45 degrees with the absorption axis of the polarizing plate to be formed later.

On the other hand, the patterned retarder 360 may be formed by the following method.

Referring to FIG. 4B (a), an alignment layer 362 is formed on the upper substrate 380. Next, referring to FIGS. 4B and 4C, polarized ultraviolet rays UV are irradiated using a mask 369 to form a first alignment layer 362a oriented in one direction. The orientation of the first alignment layer 362a is formed to be (+) 45 degrees with the absorption axis of the polarizing plate to be formed later.

Subsequently, the region in which the first alignment layer 362a is formed is covered by the mask 369, and then another polarized ultraviolet ray (UV) is irradiated to form a second alignment layer 362b oriented in a different direction. The orientation of the second alignment layer 362b is formed to be (−) 45 degrees with the absorption axis of the polarizing plate to be formed later.

Next, referring to FIG. 4B (d), a reactive liquid crystal 361 is coated on the alignment layer 362. The reactive liquid crystal 361 is a thin and coatable material having birefringence properties, and unlike the liquid crystal used in the above-described process of FIG. 4A, the reactive liquid crystal 361 may be a general liquid crystal having no acrylic reactor.

In more detail, the reactive liquid crystal 361 is dissolved in an organic solvent and coated on the upper substrate 380. Subsequently, the organic solvent is removed by drying at a temperature of 120 degrees for 3 minutes. In this case, the reactive liquid crystals 361 are arranged in the aligned directions of the alignment layer 362, respectively. Then, the reactive liquid crystal 361 is irradiated with unpolarized UV to cure the reactive liquid crystal 361, thereby forming a patterned retarder including a first patterned retarder 363 and a second patterned retarder 364. A further 360 is formed.

In this case, the first patterned retarder 363 is aligned in the same manner as the lower first alignment layer 362a, and the second patterned retarder 364 is aligned in the lower second alignment layer ( Same as that of 362b).

As described above, in the first embodiment of the present invention, the patterned retarder 360 may be formed in two ways. Hereinafter, the subsequent process disclosed will be performed in the same manner after forming the patterned retarder 360 by applying any one of the two methods. In the following, the process of FIG. 4A will be continuously described.

Subsequently, referring to FIG. 4A, the upper polarizer 350a is disposed on the patterned retarder 360 including the first patterned retarder 363 and the second patterned retarder 364. Form.

The upper polarizer 350a is formed in a guest-host type. The guest-host type polarizer is a mixture of R / G / B Dye which is a guest and a reactive liquid crystal which is a host. As the reactive liquid crystal is aligned by the lower alignment layer, R / G / B Dye is aligned to induce anisotropy. . Therefore, an alignment layer may be further included below the upper polarizer 350a. In this case, the upper polarizing plate 350a is formed to have a phase difference value of 120 to 140 nm.

Next, referring to FIG. 4A (e), a color filter layer 340 including a black matrix 345 is formed on the upper polarizer 350a, and an overcoat layer 330 is formed on the color filter layer 340. To form.

Here, since the distance between the color filter layer 340 and the patterned retarder 360 is reduced, there is no room for cross talk, and thus the black matrix 345 may have a very small width. As a result, the width of the black matrix 345 is reduced, thereby improving the aperture ratio of the display device.

Subsequently, referring to FIG. 3, the first polarizing plate 350b is formed on one surface of the lower substrate 310, and is bonded to the upper substrate 380 prepared above. A stereoscopic image display device according to an embodiment is manufactured.

Meanwhile, although the guest-host type is described as the upper polarizer 350a as an example in FIGS. 4A and 4B, it may be formed as a wire grid type.

Referring to FIG. 5A, after the same process as described above with reference to FIG. 4A (C) is performed to form the patterned retarder 360, a polymer resin is formed on the patterned retarder 360. Is applied and imprinted to form the nanopattern 351.

Subsequently, referring to FIG. 5B, a metal is deposited and patterned on the nanopattern 351 to form a wire grid type upper polarizer 350a. In this case, it is preferable to use aluminum (Al) as the metal.

Here, the pitch d between the nanopatterns 351 may be less than 150 nm, and the pitch d between the nanopatterns 351 / the pitch d1 between the metals may have a value of 0.2 to 0.8.

Next, referring to FIG. 5C, a first overcoat layer 330a is formed on the upper polarizer 350a to protect the upper polarizer 350a. Referring to FIG. 5D, the color filter layer 340 including the black matrix 345 is formed on the first overcoat layer 330a, and the second overcoat layer 330b is formed.

As described above, the manufacturing method of the stereoscopic image display device according to the first embodiment of the present invention can form a polarizing plate and a patterned retarder of various structures. In addition, by forming the polarizing plate and the patterned retarder between the liquid crystal layer and the upper substrate, the distance between the color filter layer and the patterned retarder can be reduced.

Accordingly, the angle of the light passing through the patterned retarder from the color filter layer may be increased, and the vertical viewing angle of the stereoscopic image display device may be improved.

In addition, since the distance between the color filter layer and the patterned retarder is reduced, there is no possibility of cross talk and thus the width of the black matrix can be formed to be very small. As a result, the width of the black matrix is reduced, which has the advantage of improving the aperture ratio of the display device.

6 is a view showing a stereoscopic image display device according to a second embodiment of the present invention, Figure 7 is a view showing a stereoscopic image display device according to a third embodiment of the present invention. In the following description, the same components as in the above-described first embodiment will be described with the same reference numerals and the description thereof will be omitted.

Referring to FIG. 6, the stereoscopic image display device 300 according to the second embodiment of the present invention may include a lower substrate 310 including a TFT array, a liquid crystal layer 320 positioned on the lower substrate 310, The overcoat layer 330 positioned on the liquid crystal layer 320, the polarizer 350a positioned on the overcoat layer 330, the color filter layer 340 positioned on the polarizer 350a, and the color filter layer ( The patterned retarder 360 positioned on the 340 and the upper substrate 380 positioned on the patterned retarder 360 may be included.

The stereoscopic image display device 300 according to the second embodiment described above has a structure in which the positions of the color filter layer 340 and the upper polarizer 350a are interchanged in the first embodiment. That is, as long as light transmitted through the liquid crystal layer 320 is polarized in the upper polarizing plate 350a and then left and right polarized in the patterned retarder 360, the color filter layer 340 and the upper polarizing plate 350a are provided. The position of may change.

Therefore, in the second embodiment, the liquid crystal layer 320 may be positioned in the order of the overcoat layer 330, the upper polarizer 350a, the color filter layer 340, and the patterned retarder 360.

Similarly, referring to FIG. 7, in the stereoscopic image display apparatus 300 according to the third embodiment of the present invention, the positions of the patterned retarder 360 and the color filter layer 340 are different from each other in the aforementioned second embodiment. It may be made of a changed structure.

8 is a diagram illustrating a conventional stereoscopic image display device and a stereoscopic image display device according to a first embodiment of the present invention, and FIG. 9 illustrates a patterned retarder of the stereoscopic image display device according to the first embodiment of the present invention. 10 is a photograph showing a left circle and a right circle polarization of the stereoscopic image display device according to the first embodiment of the present invention.

Referring to FIG. 8, as shown in FIG. 8A, the distance between the color filter layer 340 and the patterned retarder 360 may be about 0.7 mm thick between the upper substrate 380 and the thickness of the upper substrate 380. The sum of the thickness of 0.175 mm of the upper polarizer 350a is 0.875 mm.

On the other hand, as shown in (b) of FIG. 8, in the stereoscopic image display device according to the first embodiment of the present invention, the distance between the color filter layer 340 and the patterned retarder 360 is greater than that of the upper polarizer 350a. It can be seen that the thickness is represented by 0.002mm.

Accordingly, while the stereoscopic image display device has a vertical viewing angle of 26 degrees, the vertical viewing angle of the stereoscopic image display device of the present invention is very excellent at 178 degrees. In addition, in the conventional stereoscopic image display device, the width of the black matrix is 240 μm in order to prevent crosstalk. However, the stereoscopic image display device of the present invention significantly reduces the width of the black matrix to 52 μm.

And, referring to FIG. 9, the first patterned retarder that is the left circularly polarized portion of the stereoscopic image display device manufactured according to the first embodiment of the present invention is 178.2 μm, and the second patterned retarder that is the right circularly polarized portion is It can be seen that it is formed to 176.1㎛. In addition, it can be seen that the overlapped portion of the first patterned retarder and the second patterned retarder is represented by 2 μm.

In addition, referring to FIG. 10, it was confirmed that left circle polarization and right circle polarization of the stereoscopic image display device manufactured according to the first embodiment of the present invention are implemented.

As described above, in the stereoscopic image display device according to the embodiment of the present invention, the distance between the color filter layer and the patterned retarder may be reduced by forming the polarizing plate and the patterned retarder between the liquid crystal layer and the upper substrate. Accordingly, the angle of the light passing through the patterned retarder from the color filter layer may be increased, and the vertical viewing angle of the stereoscopic image display device may be improved.

Further, by reducing the distance between the color filter layer and the patterned retarder, it is possible to form a very small width of the black matrix by reducing the possibility of cross talk. As a result, the width of the black matrix is reduced, which has the advantage of improving the aperture ratio of the display device.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, It will be understood that the invention may be practiced. Therefore, the embodiments described above are to be understood as illustrative and not restrictive in all aspects. In addition, the scope of the present invention is shown by the claims below, rather than the above detailed description. Also, it is to be construed that all changes or modifications derived from the meaning and scope of the claims and their equivalent concepts are included in the scope of the present invention.

Claims (10)

A lower substrate comprising a TFT array;
A liquid crystal layer positioned on the lower substrate;
An overcoat layer positioned on the liquid crystal layer;
A color filter layer on the overcoat layer;
A polarizer disposed on the color filter layer;
A patterned retarder positioned on the polarizer; And
And a top substrate positioned on the patterned retarder.
The method of claim 1,
And the color filter layer comprises a black matrix.
The method of claim 1,
The polarizing plate is a wire grid type or guest-host type stereoscopic image display device.
The method of claim 1,
The patterned retarder may include a reactive liquid crystal (reactive mesogen).
The method of claim 1,
The patterned retarder includes first retarder patterns and second retarder patterns having optical axes orthogonal to each other, and converts light of a left eye image transmitted through the polarizer into first polarized light and converts light of a right eye image into a second polarizer. Stereoscopic image display that converts to polarized light.
A lower substrate comprising a TFT array;
A liquid crystal layer positioned on the lower substrate;
An overcoat layer positioned on the liquid crystal layer;
A polarizer disposed on the overcoat layer;
A color filter layer on the polarizer;
A patterned retarder positioned on the color filter layer; And
And a top substrate positioned on the patterned retarder.
A lower substrate comprising a TFT array;
A liquid crystal layer positioned on the lower substrate;
An overcoat layer positioned on the liquid crystal layer;
A polarizer disposed on the overcoat layer;
A patterned retarder positioned on the polarizer;
A color filter layer on the patterned retarder; And
And a top substrate positioned on the color filter layer.
Forming a lower substrate comprising a TFT array;
Forming a patterned retarder on the upper substrate;
Forming a polarizer on the patterned retarder;
Forming a color filter layer on the polarizer;
Forming an overcoat layer on the color filter layer; And
And attaching the lower substrate and the upper substrate to interpose a liquid crystal layer.
The method of claim 8,
The polarizing plate is a wire grid type or guest-host type manufacturing method of the stereoscopic image display device.
The method of claim 9,
The patterned retarder is a method of manufacturing a stereoscopic image display device to apply a reactive liquid crystal (reactive mesogen), and to orient by irradiating polarized UV.

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