KR101949388B1 - 3 dimensional stereography image display device - Google Patents

Abstract

The present invention provides a liquid crystal display device comprising: a liquid crystal panel having a plurality of pixel lines, which are defined as a plurality of pixel regions connected to one gate line, and in which an array substrate and a color filter substrate are bonded together via a liquid crystal layer; First and second polarizing plates provided on both outer sides of the liquid crystal panel; A pattern deleter provided on an outer surface of the second polarizer; The liquid crystal panel is formed of a polymer material having a variable arrangement of molecules due to UV and applied voltage, and has a plate shape. The refractive index of the liquid crystal molecules varies depending on positions, and the boundaries with different refractive indexes are periodically repeated And a plurality of lenses spaced apart from each other by a predetermined distance.

Description

3D stereoscopic image display device

BACKGROUND OF THE INVENTION 1. Field of the Invention [0002] The present invention relates to a 3D image display apparatus, and more particularly, to a 3D image display apparatus having improved up and down viewing angles for viewing 3D images.

Generally, a liquid crystal display device is composed of two opposing electrodes and a liquid crystal layer formed therebetween. The liquid crystal molecules of the liquid crystal layer are driven by an electric field generated by applying a voltage to the two electrodes. The liquid crystal molecules have a polarization property and an optical anisotropy. The polarization property means that when the liquid crystal molecules are placed in the electric field, the charges in the liquid crystal molecules collide with both sides of the liquid crystal molecules, and the molecular alignment direction changes according to the electric field. Refers to changing the path of the emitted light and the polarization state differently depending on the incident direction or polarization state of the incident light due to the elongated structure of the liquid crystal molecules and the aforementioned molecular arrangement direction.

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

Meanwhile, in recent years, a liquid crystal display device capable of displaying 3D images in response to the increase in demands of users for a liquid crystal display device capable of realizing a stereoscopic image and realizing a 3D image, that is, a 3D image can be realized.

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

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

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

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

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

Among them, a 3D image display device using polarizing glasses is the most widely used.

A 3D image realization system using polarizing glasses includes a liquid crystal display device that displays a large image, a patterned retarder attached to the outer surface of the liquid crystal display device, and an image from the liquid crystal display device through the patterned retarder And the polarizing glasses are selectively made transparent.

In the conventional 3D image display apparatus having such a configuration, the 3D image viewable area is about 13 degrees in the vertical direction with respect to the normal line at the central part of the liquid crystal display device.

Accordingly, when the user looks at the liquid crystal display device beyond the range of 13 degrees or more in the up-and-down direction with respect to the front face of the liquid crystal display device, part of the image information to be incident on the left eye enters into the right eye, Some of the image information to be displayed is incident on the left eye, resulting in image blurring, and normal 3D image viewing is impossible or the 3D image quality is remarkably degraded.

This phenomenon is called a 3D vertical crosstalk phenomenon.

Each 3D image display manufacturer is trying to increase the viewing angle of the 3D image by increasing the angle in the vertical direction of the 3D image viewable area.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a 3D image display device capable of improving a vertical viewing angle for viewing a 3D image and reducing a 3D vertical crosstalk phenomenon.

According to an aspect of the present invention, there is provided a 3D image display apparatus including a plurality of pixel lines, which are defined as a plurality of pixel regions connected to a same gate line, A liquid crystal panel to which color filter substrates are attached; First and second polarizing plates provided on both outer sides of the liquid crystal panel; A pattern deleter provided on an outer surface of the second polarizer; The liquid crystal panel is formed of a polymer material having a variable arrangement of molecules due to UV and applied voltage, and has a plate shape. The refractive index of the liquid crystal molecules varies depending on positions, and the boundaries with different refractive indexes are periodically repeated And a plurality of lenses spaced apart from each other by a predetermined distance.

In this case, the lens is a lenticular lens or a Fresnel lens.

The color filter substrate includes a first substrate, a black matrix formed on the first substrate, the black matrix having openings exposing the first substrate corresponding to the pixel regions, And a color filter layer formed on the first substrate exposed between the black mattresses.

Further, the lens layer is formed between the first substrate and the color filter layer, and first and second electrode layers made of a transparent conductive material are formed on the upper and lower surfaces of the lens layer, respectively, Feature.

Further, the color filter layer is covered and a transparent common electrode or an overcoat layer is formed on the entire surface. The lens layer is formed between the color filter layer and the common electrode or between the color filter layer and the overcoat layer.

The boundary between the lenses is located so as to overlap with the black matrix located at the boundary of the pixel line, and the polymer material is a PLLC (polymer localized liquid crystal).

The patterned retarder may include a first phase pattern transmitting only the left or right circularly polarized light and a second phase pattern transmitting only the polarized light opposite to the first phase pattern in units of pixel lines of the liquid crystal panel And a backlight unit is provided on an outer surface of the first polarizer.

The 3D image display apparatus according to the present invention is constructed by internalizing a lens layer including a plurality of lenticular lenses or Fresnel lenses corresponding to each pixel line in a liquid crystal panel so that light passing through the color fill layer is refracted, The light that causes the light of the viewing angle leakage component to finally cause the 3D crosstalk is reused as the normal light by changing the optical path, thereby improving the luminance characteristic in the front view looking at the image and enhancing the 3D vertical viewing angle .

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a diagram illustrating a 3D image display apparatus according to an embodiment of the present invention. Fig.
2 is a cross-sectional view of a part of a 3D image display apparatus according to an embodiment of the present invention.
3 is a sectional view of a liquid crystal panel including a characteristic configuration in a 3D image display apparatus according to an embodiment of the present invention.
4A to 4F are cross-sectional views illustrating a method of forming a lens layer on a transparent first substrate constituting a base of a color filter substrate in a 3D image display apparatus according to an embodiment of the present invention.
FIG. 5 is a graph showing a change in the magnitude of the second voltage applied to the polymer material layer as one means for enabling the role of the lenticular lens and the Fresnel lens in the step of advancing the UV slit scanning exposure.
6 is a view illustrating a path through which light emitted from a backlight unit passes through a liquid crystal panel, first and second polarizers, and a pattern drifter in a 3D image display apparatus according to an embodiment of the present invention.

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

FIG. 1 is a diagram illustrating a 3D image display apparatus according to an embodiment of the present invention. FIG. 2 is a cross-sectional view of a part of a 3D image display apparatus according to an embodiment of the present invention. FIG. 2 is a cross-sectional view of a liquid crystal panel including a characteristic configuration in a 3D image display apparatus according to an exemplary embodiment of the present invention.

Referring to FIG. 1, a 3D image display apparatus according to an embodiment of the present invention includes a liquid crystal panel 112 and first and second polarizers 125 and 130 on both outer sides thereof, A pattern reliader 140 provided on an outer surface of the second polarizer 130 of the liquid crystal display device 110 and first and second polarizers 140 and 140 disposed to have mutually perpendicular transmission axes for the left and right eyes, And polarizing glasses 145 provided with polarizing films 150a and 150b.

The liquid crystal display device 110 includes a liquid crystal panel 112 including an array substrate 115 and a color filter substrate 120 and a liquid crystal layer 170 interposed between the two substrates 115 and 120, First and second polarizers 125 and 130 attached to the outer surface of the liquid crystal panel 112 and a backlight unit (not shown) on the outer surface of the first polarizer 125 .

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

The color filter substrate 120 is provided with a color filter layer 122 composed of red, green and blue color filter patterns sequentially and repeatedly corresponding to the pixel regions P, (Not shown) is provided on the front surface. At this time, the color filter substrate 120 is provided with a black matrix 121 for suppressing the transmission of light at the boundaries of red, green and blue color filter patterns and more precisely at the boundaries of the respective pixel regions P.

The liquid crystal panel 112 including these components can be variously modified in accordance with the driving mode of the liquid crystal display device 110.

Although the common electrode (not shown) is formed on the entire surface of the color filter substrate 120 in the exemplary embodiment of the present invention, the common electrode 123 provided on the front surface of the color filter substrate 120 May be omitted in the color filter substrate 120 and alternately formed in the pixel regions P of the array substrate 115 so as to alternate with the pixel electrodes 119. In this case, the pixel electrode and the common electrode alternating in each pixel region P form a bar shape, and the liquid crystal panel having such a structure has a lateral electric field .

As another example, the common electrode may be formed in a form having a bar-shaped opening corresponding to each pixel region on the entire display region of the array substrate 115. In this case, And the liquid crystal panel having such a configuration is driven by a fringe field generated by a common electrode having a plurality of bar-shaped openings and pixel electrodes positioned in upper and lower portions.

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

At this time, a black matrix 121 is provided between neighboring pixel lines OL and EL to form a boundary between the pixel lines OL and EL.

On the other hand, in the embodiment of the present invention, the odd-numbered pixel line OL describes the left eye image and the even-numbered pixel line EL displays the right eye image, It is obvious that the even-numbered pixel line EL may display the left-eye image.

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

In a liquid crystal display device 110 having such a configuration, a lens layer 260 having a plate shape is further provided inside the liquid crystal panel 112 as the most characteristic configuration of the embodiment of the present invention. In other words, the liquid crystal panel 112 having the above-described structure is preferably further provided with a lens layer 260 having a plate shape on the inner surface of the color filter substrate.

Hereinafter, the structure of the color filter substrate 120 having the lens layer 260, which is the most characteristic structure in the 3D image display apparatus 101 according to the embodiment of the present invention, will be described in more detail.

The color filter substrate 120 provided in the 3D image display apparatus 101 according to the embodiment of the present invention includes a transparent first substrate 185 constituting a base and an upper portion A black matrix 121 provided at a boundary of each pixel region P with the components formed on the inner surface as a reference with respect to the inner surface of the substrate 185 as being positioned on the upper side, A color filter layer 122 in which red, green and blue color filter patterns R, G and B are sequentially repeated for each pixel P and a common electrode 123 transparent to the color filter layer 122 are provided. The transparent common electrode 123 may be formed on a transparent second substrate 181 forming the base of the array substrate 115 according to the structure of the array substrate 115. In this case, ).

The characteristic feature of the embodiment of the present invention is that the first substrate 185, which is a transparent base of the color filter substrate 120, and the lens layer in the form of a plate between the black matrix 121 and the color filter layer 122 260 are provided.

That is, on the inner surface of the color filter substrate 120, that is, on the transparent first substrate 185 constituting the base, a lenticular lens having a plate shape and having a shape of a boundary thereof due to a difference in refractive index, The color filter layer 122 and the color filter layer 122 are formed on the surface of the black matrix 121 and the color filter layer 122. The lens layer 260 includes a plurality of lenses 250 that function as a Fresnel lens having a configuration of a plurality of single- Is formed on the lens layer (260).

The plurality of lenses 250 provided in the lens layer 260 serve as lenticular lenses or Fresnel lenses corresponding to the respective pixel lines OL and EL. (260) is not a lenticular lens whose sectional shape is semi-elliptical in cross section, or a Fresnel lens shape having an arc-like shape having a plurality of steps, but is in the form of a flat plate of the same thickness.

That is, although the lens layer 260 has a plate shape without a difference in thickness on the color filter substrate 120, a boundary having a refractive index difference is formed in the lens layer 260 itself, The lens layer 260 is formed of a lenticular lens or a Fresnel lens whose boundary is periodically repeated. When a light is incident into the lens layer 260, a boundary having a refractive index difference substantially becomes a lenticular lens or a Fresnel lens. It plays a role.

In this case, each part serving as a lenticular lens or a Fresnel lens is formed so as to correspond to each of the pixel lines OL and EL. The black matrix 121 formed on the upper portion is arranged so as to overlap with the black matrix 121 overlapping the gate wiring 116 more precisely.

At this time, on the first outer surface (the surface adjacent to the first substrate 185) and the second outer surface (the surface adjacent to the color filter layer 122) of the lens layer 260 having such a configuration, The first electrode layer 213 and the second electrode layer 225 are further formed.

3, a common electrode 123 is provided on the liquid crystal layer 170 and a color filter layer 122 and a black matrix 121 are formed on the common electrode 123 A second electrode layer 225, a lens layer 260 and a first electrode layer 213 are sequentially formed on the color filter layer 122 and the black matrix 121. The first electrode layer 213 is in contact with the first electrode layer 213, And a transparent first substrate 185 constituting a base of the color filter substrate 120 is positioned.

In this case, the first and second electrode layers 213 and 225 are formed on the upper and lower surfaces of the lens layer 260, that is, the first and second outer surfaces, A voltage for forming a plurality of lenses serving as a focal plane lens or a Fresnel lens can be applied.

The lens layer 260 may be formed of polymeric material such as polymer localized liquid crystal (PLLC) which can be oriented under specific conditions by using a coating device such as a bar coating device or a slit coating device The shape of the boundary of the refractive index difference is changed to a lenticular or Fresnel lens shape by changing the molecular arrangement state in the polymer material layer under a specific condition in the state of forming a plate-shaped polymer material layer having a constant thickness by coating, Lens.

The method of forming the lens layer will be described in more detail.

4A to 4F are cross-sectional views illustrating a method of forming a lens layer on a transparent first substrate constituting a base of a color filter substrate in a 3D image display device according to an embodiment of the present invention.

4A, a first electrode layer 213 is formed by depositing a transparent conductive material such as indium-tin-oxide (ITO) or indium-zinc-oxide (IZO) .

3B, a polymer material such as PLLC (polymer localized liquid crystal) is coated on the first electrode layer 313 by a coating device such as a bar coating device, a spin coating device, A polymer material layer 220 is formed by coating using any one of slit coating apparatuses.

4C, a transparent conductive material such as indium-tin-oxide (ITO) or indium-zinc-oxide (IZO) is deposited on the polymeric material layer 220, The second electrode layer 225 is formed.

4D, the polymeric material layer 220 is formed on the second electrode layer 225 in order to align the liquid crystal molecules in the polymeric material layer 220, A voltage is applied to the electrode layer 213 and the second electrode layer 225 so that a voltage difference is applied to the polymer material layer 220 interposed between the first and second electrode layers 213 and 225, .

The first voltage may be about 200V to about 400V so that the liquid crystal molecules in the polymer material layer 220 can be aligned in an initial direction in a short period of time.

Next, as shown in FIGS. 4E and 4F, with respect to the polymer material layer 220 in which the liquid crystal molecules therein are arranged in one direction by applying a first voltage to the polymer material layer 220, A scan type slit mask 290 having a light transmission area TA and a blocking area BA on the second electrode layer 225 and capable of moving in the one direction with the transmission area TA being a slit shape, .

Thereafter, the UV light is irradiated on the slit mask 290, the energy density of the UV light is changed, and the slit mask 290 is moved in one direction to change the energy density by the position of the polymer material layer 220 RTI ID = 0.0 > UV < / RTI >

The UV slit scanning exposure is performed and power is applied to the first and second electrode layers 213 and 225 to have a voltage difference so that the polymeric material layer 220 has a size smaller than the first voltage And a second voltage is applied. At this time, it is preferable that the second voltage has a size within a range of 0V to 180V.

When the UV light and the second voltage having a predetermined energy density are applied to the polymer material layer 220, the positional state of the liquid crystal molecules, which are initially arranged in one direction located in the polymer material layer 220, The tilt angle of the liquid crystal molecules can be changed. When the arrangement position of the liquid crystal molecules is changed according to the position on the plane of the polymer material layer 220, the optical phase of the light passing through the polymer material layer 220 and serves as a lens for refracting the incident light by changing the optical phase.

5 is a graph showing a change in the magnitude of a second voltage applied to the polymer material layer as one of the means for providing a function of a lenticular lens and a Fresnel lens in the step of performing a UV slit scanning exposure. The graph with one peak shows a second voltage magnitude change for forming a lenticular lens and the graph with three peak values shows a second voltage magnitude change for forming a Fresnel lens.

Referring to FIGS. 4E, 4F and 5, when a lenticular lens is implemented, the UV light is irradiated through the slit during the UV slit scanning exposure, The second voltage applied to the polymer material layer 220 is gradually changed from OV to 150V in the process of moving the slit mask 290 to 150V The arrangement angle of the liquid crystal molecules is more precisely changed, and the refractive index in the polymer material layer 220 is finally changed.

Therefore, when it is assumed that the portion to which the OV is applied has a first refractive index, the first refractive index is symmetric with respect to the portion to which 0V is applied, and gradually increases or decreases with reference to the first refractive index. So that the change of the refractive index in the cross-sectional shape forms a lenticular lens shape (semi-elliptical shape).

On the other hand, in the case of implementing the Fresnel lens, for example, in conducting the UV slit scanning exposure, 150V is applied to the polymer material layer 220 from the initial position of the UV slit to a second voltage, for example, 290 are moved in one direction and the voltage applied to the polymeric material layer 220 gradually increases to 90 V to 150 V.

After the application of the first second voltage, that is, after 150V is applied, the second voltage gradually decreases to 50V lower than the 90V and is gradually applied to the starting point where 50V is applied, To the second voltage application step.

Next, when a voltage of 150 V is applied and the second voltage is changed rapidly to 90 V and thereafter the second voltage magnitude is gradually increased to 150 V, a Fresnel lens having an arc-shaped sectional shape having three peak values and having a step The polymer material layer 220 functions as a Fresnel lens.

At this time, the second voltage applied to the polymer material layer 220 serving as the Fresnel lens is 90 V and 50 V as the peak values, but it is obvious that the size can be variously changed.

On the other hand, the lens layer 260 formed by the above-described method is formed on the transparent first substrate 185 constituting the base, so that a boundary line indicating a substantial refractive index difference in proportion to the change in the second voltage magnitude is formed in the lenticular lens or The second substrate 185 may have a lenticular lens or a Fresnel lens form the first substrate 185 which forms the base. In this case, It is also possible to form a line-symmetrical shape with respect to the surface.

3) of the array substrate (115 in FIG. 3), the lens layer 260 may be formed of a normal lenticular lens or a lenticular lens It becomes a Fresnel lens shape.

1, 2, and 3, the lens layer 260 is formed on the inner surface of the color filter substrate 120 in the embodiment of the present invention, The angle of the light incident on the pattern reliader 140 is adjusted to finally improve the viewing angle range in which the 3D image display apparatus 101 can view the 3D image.

A liquid crystal layer 170 is interposed between the color filter substrate 120 and the array substrate 115 having such a configuration. On the outer surfaces of the array substrate 115 and the color filter substrate 120, And the second polarizing plates 125 and 130 are provided. At this time, the first and second polarizers 125 and 130 are configured such that their transmission axes cross each other.

The pattern driver 140 disposed on the outer surface of the second polarizer 130 attached to the outer surface of the color filter substrate 120 may be disposed on the odd-numbered pixel line OL in the horizontal direction The light emitted from the pixel region P through the second polarizer 130 is made to be in a right circularly polarized state corresponding to the pixel region P and the light emitted from the pixel region P located in the even- And a birefringent material that changes its phase internally on a transparent TAC film (not shown) forming a base so as to serve as a counterclockwise polarizing state, and has a different directionality for each pixel line OL and EL The first and second phase patterns 141a and 141b are formed. At this time, the pattern reliader 140 that makes the light to be a left circularly polarized light or a right circularly polarized state is characterized by expressing a? / 4 phase difference as an example.

The optical axis of the patterned retarder 140 for generating the phase difference of? / 4 is +45 degrees and -45 degrees relative to the transmission axis of the second polarizer 130 of the liquid crystal display device 110, Respectively.

Therefore, in the 3D image display apparatus 101 according to the embodiment of the present invention having such a configuration, after the liquid crystal display device 110 passes the pattern driver 140, the odd-numbered pixel lines OL And the left circularly polarized state light is emitted from the pixel region P located in the even-numbered pixel line EL.

At this time, for the pixel region P located in the odd-numbered pixel line OL in the liquid crystal display device 110, the left-eye image signal incident on the left eye of the user is positioned in the even-numbered pixel line EL And a right eye image signal input to the right eye is applied to the pixel region P, thereby realizing a 3D image.

In the 3D image display apparatus 101 according to an embodiment of the present invention, a diffusion film 270 may be further attached to the outer surface of the pattern reliader 140 .

The lens layer 260 is provided inside the liquid crystal panel 112 in the characteristic of the 3D image display apparatus 101 according to the embodiment of the present invention and this lens layer 260 refracts incident light and displays Since the light having passed through the patterned retarder 140 is no longer mixed with the image, the diffusion film 270 (see FIG. 4) ).

On the other hand, the polarizing glasses 145 constituting one set of the liquid crystal display device 110 with the patterned retarder 140 and the diffusion film 270 having the above-described structure attached thereto are made of a transparent glass material And the first and second polarizing films 150a and 150b and the? / 4 retardation film (not shown) are attached to the glasses.

At this time, a left / right lens 145a corresponding to the left eye of the user when the user wears the polarized glasses 145 is provided with a lambda / 4 phase film (not shown) And a polarizing film 150b is attached to the right eye lens 145b with a? / 4 phase film (not shown) functioning to selectively convert circularly polarized light into linearly polarized light.

Therefore, when the user wears the polarized glasses 145 having such a configuration and applies the left eye and right eye image data alternately to the pixel lines OL and EL and displays an image having different circular polarization states, When viewing an image through the display device 110, the left eye image is input through the left eye lens 145a and the right eye image is input via the right eye lens 145b. Therefore, by combining these two images, The 3D image can be viewed.

In the meantime, the 3D image display apparatus 101 according to the embodiment of the present invention having such a configuration is characterized in that a 3D image viewing range of the user viewing the liquid crystal display device 110 is extended compared to the conventional one.

6 is a view illustrating a path through which light emitted from a backlight unit passes through a liquid crystal panel, first and second polarizing plates, and a pattern drifter in a 3D image display apparatus according to an embodiment of the present invention.

In the case of the conventional 3D image display device, the range in which the 3D image can be viewed is about 13 degrees in the vertical direction based on the normal line of the central portion of the display area of the liquid crystal display device. However, In the case of the apparatus 101, a lens layer 260 having a plurality of lenticular lenses 250 or a Fresnel lens is provided to improve a vertical viewing angle for viewing 3D images.

That is, a part of light emitted from the backlight unit is diffused and incident on the liquid crystal panel 112 at a predetermined angle with respect to the normal line on the surface of the liquid crystal panel 112. In this case, light passing through the odd- The light is not incident on the first phase pattern 141a of the pattern trelliser 140 but is incident on the second phase pattern 141b to be leaked light to generate 3D vertical crosstalk.

However, in the 3D image display apparatus 101 according to the embodiment of the present invention, the incident light having the predetermined angle is refracted by passing through the lens layer 260 after passing through the odd-numbered pixel line OL And is normally incident on the first phase pattern 141a of the pattern reliader 140 to transmit normal image information to the user's eyes.

Accordingly, even if light having a predetermined angle is incident on the normal line of the front surface of the display screen, the 3D image display apparatus 101 according to the embodiment of the present invention, by the action of the lens layer 260, (The crosstalk is not more than 10%) because the first and second phase patterns 141a and 141b of the pattern reliader 140 are normally incident on the lens 250 by the lens 260 of the pattern reliader 140. Therefore, The upper and lower viewing angles that cause a 3D vertical crosstalk less than or equal to a normal 3D image of the generated image are enlarged and excellent 3D viewing is possible even in a vertical viewing angle range of 45 degrees in the up and down direction based on the normal of the center of the display area.

1, 2, and 3, a 3D image display apparatus 101 according to an exemplary embodiment of the present invention includes a transparent first substrate 185 (see FIG. 1), which is a base of the color filter substrate 120, And the color filter layer 122. Alternatively, the lens layer 260 may be formed between the color filter layer 122 and the common electrode (or the overcoat layer).

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.

101: 3D image display device
110: liquid crystal display
112: liquid crystal panel
121: Black Matrix
122: Color filter layer
125 and 130: first and second polarizing plates
140: patterned retarder
141a and 141b: first and second phase patterns
145: polarized glasses
145a: Left eye lens
145b: Right eye lens
150a and 150b: first and second polarizing films
181: transparent second substrate
185: first transparent substrate
EL: even-numbered pixel lines
OL: odd-numbered pixel lines

Claims (12)

A liquid crystal panel having a plurality of pixel lines defined as a plurality of pixel regions connected to one gate line and having an array substrate and a color filter substrate bonded together via a liquid crystal layer;
First and second polarizing plates provided on both outer sides of the liquid crystal panel;
A pattern deleter provided on an outer surface of the second polarizer;
The liquid crystal panel is formed of a polymer material having a variable arrangement of molecules due to UV and applied voltage, and has a plate shape. The refractive index of the liquid crystal molecules varies depending on positions, and the boundaries with different refractive indexes are periodically repeated Which is characterized by comprising a plurality of lenses spaced a predetermined distance apart from each other,
/ RTI >
The polymer material is polymer localized liquid crystal (PLLC)
Wherein the lens layer comprises a first PLLC layer having a first refractive index and a second PLLC layer having a second refractive index different from the first refractive index, the boundary comprising a 3D image located between the first and second PLLC layers Display device.
The method according to claim 1,
Wherein the lens is a lenticular lens or a Fresnel lens.
3. The method of claim 2,
A black matrix formed on a boundary between the pixel regions and having openings for exposing the first substrate corresponding to the pixel regions on the first substrate; And a color filter layer formed on the first substrate exposed between the matrix.
The method of claim 3,
Wherein the lens layer is formed between the first substrate and the color filter layer.
5. The method of claim 4,
Wherein the first and second electrode layers are formed on the upper and lower surfaces of the lens layer, the first and second electrode layers being in contact with the lens layer and made of a transparent conductive material.
The method of claim 3,
And a transparent common electrode or an overcoat layer is formed on the entire surface of the color filter layer.
The method according to claim 6,
Wherein the lens layer is formed between the color filter layer and the common electrode or between the color filter layer and the overcoat layer.
The method of claim 3,
And the boundary between the lenses is positioned so as to overlap with the black matrix located at the boundary of the pixel line.
The method according to claim 1,
Wherein the arrangement direction of the liquid crystal molecules of the first PLLC layer and the arrangement direction of the liquid crystal molecules of the second PLLC layer are different from each other.
The method according to claim 1,
Wherein the pattern reliader is formed by alternately forming a first phase pattern transmitting only the left or right circularly polarized light and a second phase pattern transmitting only the polarized light opposite to the first phase pattern in units of pixel lines of the liquid crystal panel A 3D image display device characterized by the following.
The method according to claim 1,
And a backlight unit is provided on the outer surface of the first polarizer. 10. The method of claim 9,
The alignment of the liquid crystal molecules in the polymer material layer is different from the UV and the second voltage lower than the first voltage with reference to the boundary after the liquid crystal molecules are initially arranged in one direction by the first voltage / RTI >

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