TWI471605B - Image display device - Google Patents

Description

Image display device

The present invention relates to a display device, and more particularly to an image display device having improved viewing angle and brightness.

Due to the psychological and memory factors and the binocular parallax caused by the separation distance of the eyes, people perceive depth and stereoscopic effects. From these factors, the three-dimensional image display device can be classified into a full-image type, a stereo type, and a volume type according to the degree of three-dimensional image information supplied to the viewer.

Due to psychological factors and inhalation effects, the volumetric shape in the depth direction is used for the calculation of 3D computer images and to display stereoscopic, superimposed, dark parts and shadows, light and darkness, dynamics, etc., or I cause visual illusion. -MAX movies, which offer viewers a large screen with a wide viewing angle, making viewers seem to be caught in space.

The hologram is the most ideal 3D image display technology for holographic images using lasers or white ray.

The stereotype uses the physiological factors of both eyes to perceive the stereoscopic effect. In particular, the stereoscopic type uses a stereoscopic method in which, when a two-dimensional image including a connection of parallax information is supplied to the left and right eyes separated from each other by a pitch of about 65 mm, the brain generates about the front and rear of the screen during the merging process. Spatial information to perceive stereoscopic effects.

The stereo type can be simply referred to as a multi-view image display type. The stereotype can be classified into a spectacles type requiring a user to wear a specific spectacles, and a non-glasses type in which a parallax barrier or a lens array such as a lens or an integral is used for display depending on the position of the considerable stereoscopic effect produced.

The spectacles type has a wider viewing angle and causes less vertigo than non-glasses. Furthermore, the eyeglass type can be manufactured at a relatively low cost, and in particular, the eyeglass type can be manufactured at a very low cost compared to the full image type. Further, in the glasses type, since the viewer wears the glasses to view the three-dimensional image and does not wear the glasses to view the two-dimensional image, there is an advantage that the display device can be used to display two-dimensional images and three-dimensional images.

The glasses type can be divided into shutter glasses type and polarized glasses type. In the shutter glasses type, the left eye image and the right eye image are alternately displayed on the screen, and the sequential opening time and closing time of the left eye shutter and the right eye shutter of the shutter glasses are alternate with the left eye image and the right eye image. Consistent, and the left and right eyes perceive their respective images, resulting in a stereoscopic effect.

In the polarized glasses type, the pixels of the screen are divided into 2 by columns, rows or pixels, and the left eye image and the right eye image are displayed in different polarization directions, and the left eye glasses and the right eye glasses of the polarized glasses have different biases. The polar direction, and the respective images are perceived by the left and right eyes, respectively, thereby producing a stereoscopic effect.

In order to reduce fatigue and improve stereoscopic effects, the shutter glasses type needs to increase the number of alternates per unit time. In this way, when the liquid crystal display device is used for the shutter glasses type, the liquid crystal has a slow response time, and the scan type screen address time is not completely coincident with the alternate time of the image. Therefore, flicker may occur and may cause fatigue such as dizziness when viewing an image.

On the other hand, the polarized glasses type does not cause a flicker factor, and causes less fatigue when viewing an image. Since the pixels of the screen are divided into 2 by columns, rows or pixels, the polarized glasses type can reduce the monocular resolution by half. However, since the current display panel has high resolution and it is possible to further increase the resolution in the future, it is not a problem that the monocular resolution of the polarized glasses type is reduced by half.

Furthermore, the shutter glasses type should have a hardware or circuit for alternate display in the display device, and expensive shutter glasses are required. Cost increases as viewers increase. In another aspect, the polarized glasses type can use a patterned polarized light separation visual member to separate polarized light, for example, a pattern retardation film or a micro-polarizer on the front surface of the display panel, in which case the viewer can wear polarized light. Glasses are used for viewing, where the polarized glasses are much cheaper than shutter glasses. Therefore, the cost of the polarized glasses type is relatively low.

Fig. 1 is a perspective view showing a three-dimensional image display device of a polarized glasses type according to the prior art.

In the first embodiment, the polarized glasses type three-dimensional image display device 10 according to the prior art includes a display panel 20 that displays an image, a polarizing film 50 on the display panel 20, and a pattern retardation film on the polarizing film 50. 60.

The display panel 20 includes a display area DA in which an image is sufficiently displayed, and a non-display area NDA between adjacent display areas DA. The display area DA includes a left-eye horizontal pixel line H1 and a right-eye horizontal pixel line Hr.

The left-eye horizontal pixel line H1 for displaying the left-eye image and the right-eye horizontal pixel line Hr for displaying the right-eye image are alternately arranged in the vertical direction of the display panel 20 in the drawing. The red sub-pixel, the green sub-pixel, and the blue sub-pixels R, G, and B are sequentially arranged in each of the left-eye horizontal pixel line H1 and the right-eye horizontal pixel line Hr.

The polarizing film 50 respectively changes the left-eye image and the right-eye image displayed on the display panel 20 into a linearly polarized left-eye image and a linearly polarized right-eye image, and linearly polarized left-eye images and linear deviations. The polarized right eye image is transmitted to the pattern phase difference film 60.

The pattern retardation film 60 includes a left-eye retardation film R1 and a right-eye retardation film Rr. The left-eye retardation film R1 and the right-eye retardation film Rr correspond to the left-eye horizontal pixel line H1 and the right-eye horizontal pixel line Hr, respectively, and are alternately arranged in the vertical direction of the display panel 20 in the drawing. The left-eye retardation film R1 changes the linearly polarized light into a left circularly polarized light, and the right-eye retardation film Rr changes the linearly polarized light into a right circularly polarized light.

Therefore, when passing through the polarizing film 50, the left-eye image linearly polarized by the left-eye horizontal pixel line H1 of the display panel 20, when passing through the left-eye retardation film R1 of the pattern retardation film 60, the left circle The left eye image displayed by the left eye horizontal pixel line H1 of the display panel 20 is polarized, and the left eye image is transmitted to the viewer. When passing through the polarizing film 50, the linear polarization is a right-eye image displayed by the right-eye horizontal pixel line Hr of the display panel 20, and when passing through the right-eye retardation film Rr of the pattern retardation film 60, the right circular polarization The right eye image displayed by the right eye horizontal pixel line Hr of the display panel 20 is transmitted, and the right eye image is transmitted to the viewer.

The polarized 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 the right circularly polarized light.

Therefore, in the image transmitted to the viewer, the left-eye polarized left-eye image is transmitted to the left eye of the viewer through the left-eye lens 82, and the right-circle-polarized right-eye image is transmitted through the right-eye lens 84. Give the viewer the right eye. The viewer combines the left eye image and the right eye image transmitted to the left and right eyes respectively to realize a three-dimensional image.

2 is a schematic cross-sectional view of a polarized glasses type three-dimensional image display device according to the prior art, the cross-sectional schematic view including a liquid crystal display panel as a display panel.

In FIG. 2, the display panel 20 includes a first substrate 22 and a second substrate 40 that face and are separated from each other, and a liquid crystal layer 48 that is inserted into the first substrate 22 and the second substrate 40.

A gate line (not shown) and a gate electrode 24 connected to the gate line are formed on the inner surface of the first substrate 22. A gate insulating layer 26 is formed on the gate line and the gate electrode 24.

The semiconductor layer 28 is formed on the gate insulating layer 26 of the corresponding gate electrode 24. Source electrodes 32 and drain electrodes 34 separated from each other, and data lines (not shown) connected to the source electrodes 32 are formed on the semiconductor layer 28. The data lines and the gate lines are interleaved to define a pixel area.

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

A passivation layer 36 is formed on the source electrode 32, the drain electrode 34, and the data line, and the passivation layer 36 has a drain contact hole 36a for exposing the drain electrode 34.

The pixel electrode 38 is formed on the passivation layer 36 in the pixel region, and is connected to the germanium electrode 34 through the drain contact hole 36a.

The black matrix 42 is formed on the inner surface of the second substrate 40. The black matrix 42 has an opening corresponding to the pixel region, and the black matrix 42 corresponds to the gate line, the data line, and the thin film transistor T. The color filter layer 44 is formed on the black matrix 42 and formed on the inner surface of the second substrate 40 exposed through the opening of the black matrix 42. Although not shown, the color filter layer 44 includes a red color filter layer, a green color filter layer, and a blue color filter layer, each of which corresponds to one pixel region.

A transparent common electrode 46 is formed on the color filter layer 44.

The liquid crystal layer 48 is arranged between the pixel electrode 38 of the first substrate 22 and the common electrode 46 of the second substrate 40. Although not shown, an alignment layer that determines the initial arrangement of liquid crystal molecules is formed between the liquid crystal layer 48 and the pixel electrode 38 and between the liquid crystal layer 48 and the common electrode 46, respectively.

At the same time, the first polarizer 52 is arranged on the outer surface of the first substrate 22, and the second polarizer 50 is arranged on the outer surface of the second substrate 40. The second substrate 40 corresponds to the polarizing film in Fig. 1 . The first polarizer 52 and the second polarizer 50 transmit linearly polarized light parallel to the transmission axis thereof. The transmission axis of the first polarizer 52 is perpendicular to the transmission axis of the second polarizer 50.

The pattern retardation film 60 is attached to the second polarizer 50. The pattern retardation film 60 includes a base film 62, a retardation layer 64, a black strip 66, and an adhesive layer 68.

The phase difference layer 64 includes a left-eye retardation film R1 and a right-eye retardation film Rr which are alternately arranged in the vertical direction of the apparatus. The black strip 66 corresponds to an edge region between the left-eye retardation film R1 and the right-eye retardation film Rr.

The phase difference between the left-eye retardation film R1 and the right-eye retardation film Rr is λ/4, and their optical axes are +45 in the direction of the polarization of the linear polarized light transmitted from the display panel 20 and the second polarizer 50. ° or -45 ° angle.

The black strip 66 prevents three-dimensional (3D) crosstalk that occurs simultaneously to the left eye or right eye of the viewer's left or right eye, thereby improving the 3D viewing angle along the up and down direction of the device.

Alternatively, to prevent 3D crosstalk, the black matrix 42 in the display device may have a widened width instead of forming a black strip 66.

The use of black bars or black matrices to improve 3D crosstalk and 3D viewing angle will be explained below with reference to the accompanying drawings.

3A to 3C are schematic cross-sectional views showing 3D crosstalk of the polarized glasses type three-dimensional image display device of the prior art. Fig. 3A shows a device without a black bar, Fig. 3B shows a device with a black bar, and Fig. 3C shows a device with a black matrix having a widened width instead of a black bar.

Although not shown, in the front viewing angle of the polarized glasses type three-dimensional image display device 10: the left viewing angle and the right viewing angle, when passing through the left-eye retardation film R1 of the pattern retardation film 60, the left circular polarization is caused by the display panel 20 The left-eye horizontal pixel line H1 displays the left-eye image Il, and transmits the left-eye image I1 to the viewer; when passing through the right-eye retardation film Rr of the pattern retardation film 60, the right circular polarization is displayed by the display panel The right eye image Ir of the right eye horizontal pixel line Hr of 20 is displayed, and the right eye image Ir is transmitted to the viewer. Therefore, there is no 3D crosstalk due to the mixture of the left eye image I1 and the right eye image Ir.

However, as shown in FIG. 3A, in the upper and lower viewing angles of the polarized glasses type three-dimensional image display device 10, some of the left-eye images Il displayed by the left-eye horizontal pixel line H1 of the display panel 20 pass through the right eye of the pattern retardation film 60. The retardation film Rr is polarized by the right circle and the left eye image Il is polarized.

That is, the right circle is polarized to the right eye image Ir and some of the left eye image Il, and is transmitted to the right eye of the viewer through the right eye lens 84 of the polarized glasses 80. Therefore, the right eye image Ir and some of the left eye images I1 interfere with each other, so that 3D crosstalk occurs. The 3D viewing angle performance in the up and down direction is degraded.

Due to the non-display area NDA between the display areas DA having the first height h1 of the display panel 20, interference between the left-eye image I1 and the right-eye image Ir can be reduced. Since the display panel 20 is relatively far from the pattern phase difference film 60, the effect for preventing 3D crosstalk is not significant.

In order to improve the above defects, as shown in FIG. 3B, the black strips 66 may be formed between the left-eye retardation film R1 and the right-eye retardation film Rr of the pattern retardation film 60, or as shown in FIG. 3C, the display panel The black matrix 43 in 20 may have a widened width that is not a black strip.

Here, some of the left-eye image I1 displayed by the left-eye horizontal pixel line H1 of the display panel 20, and the right-eye retardation film Rr entering the pattern phase difference film 60 are blocked by the black strip 66 or the black matrix 43. Therefore, there is no right circular polarization and some left eye images Il are not output.

That is to say, only the right circle is polarized to the right eye image Ir, and is transmitted to the right eye of the viewer through the right eye lens 84 of the polarized glasses 80. Since the interference of the right-eye image Ir and some of the left-eye images Il is blocked, the 3D crosstalk and the 3D viewing angle performance in the up and down direction are improved.

However, the display panel 20 includes a black strip area BS which is larger than the non-display area NDA due to the black strip 66, while the display area DA substantially falls to a second height H2 having a smaller than the first height h1. Alternatively, due to the black matrix 43, the non-display area NDA is increased while the display area DA is lowered to have a third height h3 smaller than the first height h1. Therefore, the aperture ratio and brightness are lowered.

Accordingly, the present invention is directed to a three-dimensional image display device that substantially obviates one or more problems due to limitations and disadvantages of the prior art.

It is an object of the present invention to provide a three-dimensional image display device that improves 3D viewing angle performance by preventing 3D crosstalk and increases aperture ratio and brightness.

Another object of the present invention is to provide a two-dimensional image display device having improved brightness.

The additional features and advantages of the invention are set forth in the description which follows, These and other advantages of the invention will be realized and attained by the <RTIgt;

In order to achieve these and other advantages and in accordance with the purpose of embodiments of the present invention, as specifically described in detail, an image display apparatus includes: a display panel including a display area and a non-display area, wherein the display area includes a left-eye horizontal pixel line displaying a left-eye image and a right-eye horizontal pixel line displaying a right-eye image; a polarizing film arranged on the display panel, wherein the polarizing film linearly polarizes the left-eye image and the right-eye image; a pattern retardation film is disposed on the polarizing film, and the pattern retardation film comprises: a left-eye retardation film and a right-eye retardation film, wherein the left-eye retardation film corresponds to a left-eye horizontal pixel line And the linearly polarized left-eye image is changed to the left circular polarization image, and the right-eye retardation film corresponds to the right-eye horizontal pixel line, and the linearly polarized image is changed to the right circular polarization And a cylindrical lens film arranged on the polarizing film and including a lenticular lens, wherein the lenticular lenses respectively correspond to a left-eye retardation film and a right-eye retardation film.

In another aspect, an image display device includes: a display panel including a plurality of horizontal pixel lines, each horizontal pixel line including a plurality of pixels, a linear polarizing film, arranged on the display panel, and a A lenticular lens film is disposed on the linear polarizing film and includes a lenticular lens, wherein the lenticular lenses correspond to horizontal pixel lines.

The foregoing summary, as well as the following detailed description of the invention

Reference will now be made to the embodiments of the invention,

Fig. 4 is a perspective view showing a polarized glasses type three-dimensional image display device in accordance with an embodiment of the present invention.

In FIG. 4, the polarized glasses type three-dimensional image display device 110 of the present invention includes: a display panel 120 that displays an image; a polarizing film 150 that is arranged on the display panel 120; and a pattern retardation film that is arranged on the polarizing film 150. 160; and a lenticular lens film 170 above the pattern retardation film 160. Here, the lenticular lens film 170 may be in the form of a sheet.

The display panel 120 includes a display area DA that substantially displays an image and a non-display area NDA between adjacent display areas DA. The display area DA includes a left-eye horizontal pixel line H1 and a right-eye horizontal pixel line Hr.

The left-eye horizontal pixel line H1 displaying the left-eye image and the right-eye horizontal pixel line Hr displaying the right-eye image are alternately arranged in the vertical direction of the display panel 120 in the drawing. The red sub-pixel, the green sub-pixel, and the blue sub-pixels R, G, and B are sequentially arranged in each of the left-eye horizontal pixel line H1 and the right-eye horizontal pixel line Hr.

The polarizing film 150 respectively changes the left-eye image and the right-eye image displayed by the display panel 120 into a linearly polarized left-eye image and a linearly polarized right-eye image, and linearly polarized left-eye images and linear deviations. The polarized right eye image is transmitted to the pattern retardation film 160.

The pattern retardation film 160 includes a left-eye retardation film R1 and a right-eye retardation film Rr. The left-eye retardation film R1 and the right-eye retardation film Rr correspond to the left-eye horizontal pixel line H1 and the right-eye horizontal pixel line Hr, respectively, and are alternately arranged along the vertical direction of the display panel 120 in the drawing. The left-eye retardation film R1 changes the linear polarization light into the left circularly polarized light, and the right-eye retardation film Rr changes the linear polarization light into the right circular apolar light.

The lenticular lens film 170 concentrates the left circularly polarized light or the right circularly polarized light from the pattern retardation film 160 in a predetermined direction, and improves the viewing angle in the up and down direction of the device in the drawing. The lenticular lens film 170 includes a plurality of lenticular lenses 174 arranged in the vertical direction of the display panel 120 in the drawing. Each of the lenticular lenses 174 corresponds to one left-eye retardation film R1 or one right-eye retardation film Rr.

Here, the lens pitch P _L of the lenticular lens film 170 defined as the width of each of the lenticular lenses 174 or the distance between the peaks of the adjacent lenticular lenses 174 has a definition perpendicular to the display panel in the drawing. The pixel pitch P _P of the display panel 120 whose direction is from the upper end of one pixel to the upper end of the next pixel is about ±5 μm. Beneficially, the lens pitch P _{L is} less than or equal to the pixel pitch P _P .

At this time, the lens pitch and the pixel pitch may correspond to each other to such an extent that the central portion of the lenticular lens film 170 is aligned with the central portion of the display panel 120.

Therefore, when passing through the polarizing film 150, the linear polarization is a left-eye image displayed by the left-eye horizontal pixel line H1 of the display panel 120; when passing through the left-eye retardation film R1 of the pattern retardation film 160, the left circle The left-eye image displayed by the left-eye horizontal pixel line H1 of the display panel 120 is polarized; when passing through the lenticular lens 170, the left-eye image displayed by the left-eye horizontal pixel line H1 of the display panel 120 faces the first direction mobile. When passing through the polarizing film 150, the linear polarization is a right-eye image displayed by the right-eye horizontal pixel line Hr of the display panel 120; when passing through the right-eye retardation film Rr of the pattern retardation film 160, the right circularly polarized The right eye image displayed by the right eye horizontal pixel line Hr of the display panel 120 is turned; when passing through the lenticular lens film 170, the right eye image displayed by the right eye horizontal pixel line Hr of the display panel 120 is moved in the first direction. Therefore, the left eye image and the right eye image moving in the first direction are transmitted to the viewer.

The polarized glasses 180 worn by the viewer include a left-eye lens 182 and a right-eye lens 184. The left-eye lens 182 transmits only the left circularly polarized light, and the right-eye lens 184 transmits only the right circularly polarized light.

Therefore, in the image transmitted to the viewer, the left circularly polarized left eye image is transmitted to the viewer's left eye through the left eye lens 182, and the right circularly polarized right eye image is transmitted to the viewing through the right eye lens 184. The right eye of the person. The viewer combines the left eye image transmitted to the left and right eyes and the right eye image to realize a three-dimensional image.

At this time, by passing through the right-eye retardation film Rr of the pattern retardation film 160, some left-eye image vibrations may be polarized right-handed; or, by passing through the left-eye retardation film R1 of the pattern retardation film 160, The left eye is polarized to some right eye images. However, when passing through the lenticular lens 170, the right circularly polarized left eye image or the left circularly polarized right eye image may move in a second direction different from the first direction. Therefore, 3D crosstalk and viewing angle performance can be improved since the interference between the left eye image and the right eye image can be prevented.

Fig. 5 is a schematic cross-sectional view showing a polarized glasses type three-dimensional image display device according to an embodiment of the present invention.

In FIG. 5, the display panel 120 includes a first substrate 122 and a second substrate 140 that face and are separated from each other, and a liquid crystal layer 148 interposed between the first substrate 122 and the second substrate 140.

A gate line (not shown) and a gate electrode 124 connected to the gate line are formed on the inner surface of the first substrate 122. A gate insulating layer 126 is formed on the gate line and the gate electrode 124.

The semiconductor layer 128 is formed on the gate insulating layer 126 of the corresponding gate electrode 124. The source electrode 132 and the drain electrode 134 which are separated from each other, and a data line (not shown) connected to the source electrode 132 are formed on the semiconductor layer 128. The data lines and the gate lines are interleaved to define a pixel area. Although not shown, the semiconductor layer 128 includes an active layer of an intrinsic amorphous germanium and an ohmic contact layer of an amorphous germanium doped with impurities. The ohmic contact layer may have the same shape as the source electrode 132 and the drain electrode 134.

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

A passivation layer 136 is formed on the source electrode 132, the drain electrode 134, and the data line, and the passivation layer 136 has a drain contact hole 136a for exposing the drain electrode 134.

The pixel electrode 138 is formed on the passivation layer 136 in the pixel region, and is connected to the drain electrode 134 through the drain contact hole 136a.

A black matrix 142 is formed on the inner surface of the second substrate 140. The black matrix 142 has an opening corresponding to the pixel region, and the black matrix 142 corresponds to the gate line, the data line and the thin film transistor T. Here, the opening corresponds to the display area DA, and the black matrix 142 corresponds to the non-display area NDA. The color filter layer 144 is formed on the black matrix 142 and on the inner surface of the second substrate 140 exposed through the opening of the black matrix 142. Although not shown, the color filter layer 144 includes a red color filter layer, a green color filter layer, and a blue color filter layer, each of which corresponds to one pixel region. The red color filter layer, the green color filter layer, and the blue color filter layer are sequentially and repeatedly arranged in the horizontal direction of the display panel 120 shown in FIG. The same color filter layers are arranged in the vertical direction of the display panel 120 in the drawing. A transparent common electrode 146 is formed on the color filter layer 144.

Meanwhile, although not shown, a cover layer may be formed between the color filter layer 144 and the common electrode 146 to protect the color filter layer 144 and flatten the surface of the second substrate 140 including the color filter layer 144.

The liquid crystal layer 148 is arranged between the pixel electrode 138 of the first substrate 122 and the common electrode 146 of the second substrate 140. Although not shown, an alignment layer that determines the initial arrangement of liquid crystal molecules is formed between the liquid crystal layer 148 and the pixel electrode 138, respectively, and between the liquid crystal layer 148 and the common electrode 146.

However, in the embodiment, the pixel electrode 138 and the common electrode 146 are respectively formed on the first substrate 122 and the second substrate 140, and the pixel electrode 138 and the common electrode 146 may be formed on the first substrate 122.

At the same time, the first polarizer 152 is arranged on the outer surface of the first substrate 122, and the second polarizer 150 is arranged on the outer surface of the second substrate 140. The first polarizer 152 and the second polarizer 150 transmit linear polarized light parallel to the transmission axis thereof. The transmission axis of the first polarizer 152 is perpendicular to the transmission axis of the second polarizer 150. The adhesive layer may be arranged between the first substrate 122 and the first polarizer 152 and between the second substrate 140 and the second polarizer 150.

Although not shown, the backlight unit is arranged under the first polarizer 152 to provide light to the display panel 120.

Here, a liquid crystal panel is used as the display panel 120. Alternatively, an organic electroluminescence display panel can be used as the display panel 120. In this case, the first polarizer 152 may be omitted, and a λ/4 plate (quarter wave plate: QWP) and a linear polarizer may be used instead of the second polarizer 150.

The pattern phase difference film 160 is attached to the second polarizer 150. The pattern retardation film 160 includes a first base film 162, a phase difference layer 164, and an adhesive layer 168. The phase difference layer 164 includes a left-eye phase difference film R1 and a right-eye phase difference film Rr which are alternately arranged in the vertical direction of the apparatus. The adhesive layer 168 is in contact with the second polarizer 150, and the phase difference layer 164 is arranged between the first base film 162 and the second polarizer 150. Here, the position of the phase difference layer 164 and the first base film 162 may vary. That is, the adhesive layer 168 in contact with the second polarizer 150 is formed on the first surface of the first base film 162, and the phase difference layer 164 is formed on the second surface of the first base film 162.

The first base film 162 may be composed of cellulose triacetate (TAC) or a cyclic olefin polymer (COP).

The left-eye retardation film R1 and the right-eye retardation film Rr have a phase difference value of λ/4, and their optical axes are in the direction of the polarization of the linear polarized light transmitted from the display panel 120 through the second polarizer 150. Angle between 45° and -45°.

The lenticular lens film 170 is arranged on the pattern retardation film 160. The lenticular lens film 170 includes a second base film 172 and a lenticular lens 174. Although not shown, the base film 172 may be attached to the pattern retardation film 160 having an adhesive layer.

The second base film 172 may be composed of polyethylene terephthalate (PET). However, because PET is inexpensive and has a phase difference due to birefringence, PET can cause a change in polarization. For example, PET has a plane phase difference Rin of 130 nm, and a thickness phase difference Rth of -4300 nm. This is not easy to control the light. Therefore, it is necessary to use a material having zero birefringence or relatively low birefringence as the second base film 172. Beneficially, the second base film 172 may have a planar phase difference Rin in the range of -10 nm to +10 nm, and more advantageously, the planar phase difference Rin of the second base film 172 is 0 nm, and has a range of -50 nm to +50 nm. The thickness phase difference Rth within. The second base film 172 may include: cellulose triacetate (TAC), a cyclic olefin polymer (COP) or an acrylic fiber material having a zero phase difference. For example, the TAC may have a plane phase difference Rin of 0 nm and a thickness phase difference Rth of -50 nm. The acrylic fiber material having a zero phase difference may have a plane phase difference Rin of 0 nm and a thickness phase difference Rth of 0 nm. The second base film 172 may have a thickness of from about 60 μm to about 80 μm.

The first base film 162 of the pattern retardation film 160 may be omitted. In this case, the phase difference layer 164 may be formed on the upper surface of the second polarizer 150 or may be formed on the lower surface of the second base film 172.

The lens pitch P _L of the lenticular lens film 170 defined as the width of each of the lenticular lenses 174 or the distance between the peaks of the adjacent lenticular lenses 174 has a vertical dimension defined as being along the display panel 120 in FIG. The pixel pitch P _P of the display panel 120 whose direction is from the upper end of one pixel to the upper end of the next pixel is about ±5 μm, and corresponds to each left-eye retardation film R1 or each right of the pattern phase difference film 160. The width of the ocular phase difference film Rr. Beneficially, the lens pitch P _{L is} less than or equal to the pixel pitch P _P .

Meanwhile, due to the radius of curvature, the thickness d of the lenticular lens 174 varies with the change in the focal length, and the maximum viewing angle changes as the focal length of the lenticular lens 174 changes. The 3D crosstalk value can be predicted from the angle of the light transmitted through the lenticular lens 174, so that the maximum viewing angle can be determined.

For example, in a 47-inch three-dimensional image display device, when the pixel pitch P _P is 541.5 μm, the lens pitch P _L may be in the range of 536.5 μm to 546.5 μm, and advantageously, the lens pitch P _L may be less than 541.5 μm. Further, the thickness d of the lenticular lens 174 may range from about 20 μm to about 200 μm.

Figure 6 is a schematic diagram for calculating 3D crosstalk in a three-dimensional image display device according to an embodiment of the present invention.

In Fig. 6, the incident angle Φ of the ray having the refraction angle θ can be expressed by Equation (1) according to Snell's Law.

Φ=sin ^-1 (sin θ/n) ---------- Equation (1)

Here, n is the refractive index of the lenticular lens 174, for example, about 1.5.

Meanwhile, the focal length of the lenticular lens 174 can be expressed by Equation (2).

f=P ² /(8‧Δn‧d) ---------- Equation (2)

Here, P is the width of the lenticular lens 174, that is, the lens pitch PL, Δn is the difference between the refractive index of the air and the refractive index of the lenticular lens 174, and d is the thickness of the lenticular lens 174.

Therefore, the angle Ψ of the light incident from the both ends of the lenticular lens 174 from a point, that is, the backlight unit (not shown) can be expressed by the equation (3).

Ψ=sin ^-1 {(4‧Δn‧d)/(P‧cos ² Φ)} ---------- Equation (3)

From the equation (1) to the equation (3), the region Ri of the right-eye horizontal pixel line Hr and the region Li of the left-eye horizontal pixel line H1 passing through the light incident on both ends of the lenticular lens 174 from one point can be obtained by the equation (4) And equation (5).

Ri=L‧tan(Φ-Ψ)-(B/2) ---------- Equation (4)

Li=P _P -(B/2)-L‧tan(Φ+Ψ) ---------- Equation (5)

Here, L is the distance from the display area DA of the display panel 120 to the lenticular lens 174, B is the width of the black matrix, that is, the width of the non-display area NDA, and PP is the pixel pitch, which is the display area DA and the non-display area The sum of the widths of the NDAs corresponds to the width of the left-eye retardation film or the right-eye retardation film of the pattern retardation film 160.

Therefore, the 3D crosstalk CT which is Ri/Li can be obtained from Equation (4) and Equation (5). When the 3D crosstalk CT is 7%, the device is determined to have the largest viewing angle.

Fig. 7 is a view showing simulation results of 3D crosstalk versus refraction angle in a three-dimensional image display device having different conditions such as a focal length or a black matrix width according to the present invention. Table 1 shows the maximum viewing angle obtained from Figure 7. Here, a 47-inch display panel was applied to each of the experimental examples and comparative examples.

In Experimental Example 1, the focal length f of the lenticular lens 174 of FIG. 6 is 2050 μm, and the width of the black matrix, that is, the width of the non-display area NDA of FIG. 6 is 70 μm, from the display panel 120 of FIG. The distance L between the display area DA of Fig. 6 and the lenticular lens 174 of Fig. 6 is 900 μm.

In Experimental Example 2, the focal length f of the lenticular lens 174 of FIG. 6 is 2050 μm, and the width of the black matrix, that is, the width of the non-display area NDA of FIG. 6 is 240 μm, from the display panel 120 of FIG. The distance L between the display area DA of Fig. 6 and the lenticular lens 174 of Fig. 6 is 900 μm.

In Experimental Example 3, the focal length f of the lenticular lens 174 of FIG. 6 is 1450 μm, and the width of the black matrix, that is, the width of the non-display area NDA of FIG. 6 is 70 μm, from the display panel 120 of FIG. The distance L between the display area DA of Fig. 6 and the lenticular lens 174 of Fig. 6 is 900 μm.

In Experimental Example 4, the focal length f of the lenticular lens 174 of FIG. 6 is 1450 μm, and the width of the black matrix, that is, the width of the non-display area NDA of FIG. 6 is 70 μm, from the display panel 120 of FIG. The distance L between the display area DA of Fig. 6 and the lenticular lens 174 of Fig. 6 is 700 μm.

At the same time, 3D crosstalk and viewing angle are estimated as a comparative embodiment that does not use a lenticular lens. In Comparative Example 1, the width of the black matrix or the black strip was 70 μm, and the distance L from the display area DA of Fig. 6 of the display panel 120 of Fig. 6 including the pattern retardation film 160 of Fig. 6 was 900 μm.

In Comparative Example 2, the width of the black matrix or the black strip was 240 μm, and the distance L from the display area DA of Fig. 6 of the display panel 120 of Fig. 6 including the pattern retardation film 160 of Fig. 6 was 900 μm.

From Fig. 7 and Table 1, it should be noted that the maximum viewing angle increases as the width of the black matrix or black strip, that is, the width of the non-display area NDA increases. However, since the width of the non-display area NDA is increased, the aperture ratio is lowered and the luminance is lowered. The brightness of Comparative Example 2 was lowered by 65% of the brightness of Comparative Example 1.

Further, from Fig. 7 and Table 1, it is to be noted that the maximum viewing angle increases as the focal length of the lenticular lens decreases. The viewing angle of Experimental Example 1 or Experimental Example 3 using a lenticular lens and minimizing the width of the non-display area NDA was larger than that of Comparative Example 2.

Therefore, the viewing angle in the up and down direction of the device can be improved by using the lenticular lens, and the width of the non-display area NDA, that is, the width of the black matrix can be minimized.

Fig. 8 is a view showing the luminance versus refraction angle in a three-dimensional image display device having different focal lengths according to the present invention. Table 2 shows that the maximum angle of view depends on the focal length in Figure 8. Here, a 47-inch display panel was applied to each of the experimental examples and comparative examples.

In Experimental Example 5, the focal length f of the lenticular lens 174 of Fig. 6 was 6000 μm. In Experimental Example 6, the focal length f of the lenticular lens 174 of Fig. 6 was 3000 μm. In Experimental Example 7, the focal length f of the lenticular lens 174 of Fig. 6 was 1500 μm.

In Comparative Example 3, a lenticular lens was not used.

From Fig. 8 and Table 2, it should be noted that the maximum viewing angle increases as the focal length f of the lenticular lens 174 of Fig. 6 decreases, and a pocket fence effect occurs, in which the brightness reduction occurs at a certain angle of view. .

Here, in Experimental Example 6 in which the focal length f of the lenticular lens 174 of Fig. 6 is 3000 μm, the maximum viewing angle is 26.1°, which is similar to the comparison of the width of the non-display area NDA having 240 μm shown in Table 1. The maximum viewing angle of 25.6° of Example 2, and the brightness exceeding the viewing angle was about 80%.

Therefore, when the focal length f of the lenticular lens 174 of Fig. 6 is in the range of about 2000 μm to about 3000 μm, excellent viewing angle performance can be obtained without lowering the brightness.

Further, when the brightness of the backlight unit is increased, a wider viewing angle f can be used to obtain a wider viewing angle, and the fence effect at a certain viewing angle can be prevented. Therefore, the viewing angle performance can be further improved.

In the above embodiment, the pattern retardation film 160 of Fig. 4 is arranged on the polarizing film 150 of Fig. 4, and the lenticular lens film 170 of Fig. 4 is arranged on the pattern retardation film 160 of Fig. 4. The positions of the pattern retardation film 160 of Fig. 4 and the lenticular lens film 170 of Fig. 4 can be changed. That is, the lenticular lens film can be arranged on the polarizing film 150 of Fig. 4, and the pattern retardation film can be arranged on the lenticular lens film.

Alternatively, the pattern retardation film 160 of Fig. 4 may be omitted, and the lenticular lens film 170 of Fig. 4 may function as a pattern retardation film. At this time, each of the lenticular lenses of the lenticular lens film 170 of FIG. 4 may have a phase difference value of λ/4, and its optical axis is transmitted from the display panel 120 of FIG. 4 through the polarizing film 150 of FIG. The polarization direction of the linear polarized light is at an angle of +45° and -45°.

In the above embodiment, the lenticular lens film 170 of Fig. 4 is applied to a three-dimensional image display device, and the lenticular lens film can be applied to a two-dimensional image display device.

Fig. 9 is a schematic cross-sectional view showing a two-dimensional image display device including a cylindrical lens film according to an embodiment of the present invention.

In FIG. 9, the display panel 220 includes a first substrate 222 and a second substrate 240 that face and are separated from each other, and a liquid crystal layer 248 interposed between the first substrate 222 and the second substrate 240.

A gate line (not shown) and a gate electrode 224 connected to the gate line are formed on the inner surface of the first substrate 222. A gate insulating layer 226 is formed on the gate line and the gate electrode 224.

The semiconductor layer 228 is formed on the gate insulating layer 226 of the corresponding gate electrode 224. The source electrode 232 and the drain electrode 234 which are separated from each other and a data line (not shown) connected to the source electrode 232 are formed on the semiconductor layer 228. The data lines and the gate lines are interleaved to define a pixel area. Although not shown, the semiconductor layer 228 includes an active layer of an intrinsic amorphous germanium and an ohmic contact layer of an amorphous germanium doped with impurities. The ohmic contact layer may have the same shape as the source electrode 232 and the drain electrode 234.

Here, the gate electrode 224, the semiconductor layer 228, the source electrode 232, and the germanium electrode 234 constitute a thin film transistor T.

A passivation layer 236 is formed on the source electrode 232, the drain electrode 234, and the data line, and the passivation layer 236 has a drain contact hole 236a for exposing the drain electrode 234.

The pixel electrode 238 is formed on the passivation layer 236 in the pixel region, and is connected to the germanium electrode 234 through the drain contact hole 236a.

A black matrix 242 is formed on the inner surface of the second substrate 240. The black matrix 242 has openings corresponding to the pixel regions, and the black matrix 242 corresponds to the gate lines, the data lines, and the thin film transistor T. The color filter layer 244 is formed on the inner surface of the black matrix 242 and the second substrate 240 exposed through the opening of the black matrix 242. Although not shown, the color filter layer 244 includes a red color filter layer, a green color filter layer, and a blue color filter layer, each of which corresponds to one pixel region. The red color filter layer, the green color filter layer, and the blue color filter layer are sequentially and repeatedly arranged in the horizontal direction of the display panel 220 parallel to the gate lines. The same color filter layers are arranged in the vertical direction of the display panel 220 parallel to the data lines. A transparent common electrode 246 is formed on the color filter layer 244.

Meanwhile, although not shown, a cover layer may be formed between the color filter layer 244 and the common electrode 246 to protect the color filter layer 244 and flatten the surface of the second substrate 240 including the color filter layer 244.

The liquid crystal layer 248 is arranged between the pixel electrode 238 of the first substrate 222 and the common electrode 246 of the second substrate 240. Although not shown, an alignment layer that determines the initial arrangement of liquid crystal molecules is formed between the liquid crystal layer 248 and the pixel electrode 238 and between the liquid crystal layer 248 and the common electrode 246, respectively.

In the present embodiment, the pixel electrode 238 and the common electrode 246 are formed on the first substrate 222 and the second substrate 240, respectively, and the pixel electrode 238 and the common electrode 246 may be formed on the first substrate 222.

Meanwhile, the first polarizer 252 is arranged on the outer surface of the first substrate 222, and the second polarizer 250 is arranged on the outer surface of the second substrate 240. The first polarizer 252 and the second polarizer 250 transmit linearly polarized light parallel to its transmission axis. The transmission axis of the first polarizer 252 is perpendicular to the transmission axis of the second polarizer 250. The adhesive layer may be arranged between the first substrate 222 and the first polarizer 252 and between the second substrate 240 and the second polarizer 250.

Although not shown, the backlight unit is arranged under the first polarizer 252 to provide light to the display panel 220.

The lenticular lens film 270 is arranged on the second polarizer 250. The lenticular lens film 270 includes a base film 272 and a lenticular lens 274. Although not shown, the base film 272 may be attached to the second polarizer 250 having an adhesive layer.

The base film 272 of the lenticular lens film 270 may be composed of a material having zero birefringence or relatively low birefringence. Beneficially, the base film 272 may have a planar phase difference Rin in the range of -10 nm to +10 nm, and more advantageously, the base film 272 may have a plane phase difference Rin of 0 nm and a thickness phase in the range of -50 nm to +50 nm. The difference Rth. The base film 272 may include cellulose triacetate (TAC), a cyclic olefin polymer (COP) or an acrylic fiber material having a zero phase difference. For example, the TAC may have a plane phase difference Rin of 0 nm and a thickness phase difference Rth of -50 nm. The acrylic fiber material having a zero phase difference may have a plane phase difference Rin of 0 nm and a thickness phase difference Rth of 0 nm.

The lens pitch P _L of the lenticular lens film 270 defined as the width of each of the lenticular lenses 274 or the distance between the peaks of the adjacent lenticular lenses 274 has a pixel defined as being one pixel along the vertical direction of the display panel 220 The pixel pitch P _P of the display panel 220 from the upper end to the upper end of the next pixel is about ±5 μm. Beneficially, the lens pitch P _{L is} less than or equal to the pixel pitch P _P .

The lenticular lenses 274 are arranged in the vertical direction of the display panel 220.

10A and 10B are schematic views respectively showing paths of light rays in the two-dimensional image display device before and after attaching the lenticular lens. 11A and 11B are pictures of a two-dimensional image display device before and after attaching the lenticular lens, respectively.

In Figs. 10A and 11A, before the lenticular lens is attached, the light emitted from the backlight is partially lost by the black matrix BM, and thus the front luminance is lowered. In order to increase the brightness, the light emitted from the backlight is increased, or a light film is used for compensation. In this case, power consumption increases, or manufacturing costs increase.

On the other hand, in FIGS. 10B and 11A, after the lenticular lens is attached, the light emitted from the backlight is concentrated by the lenticular lens LL. The front brightness is increased as compared with the devices of Figs. 10A and 11B.

Fig. 12A is a schematic view showing an image display device for measuring the brightness depending on the presence of a lenticular lens, and Fig. 12B is a view showing the brightness at each point of Fig. 12A.

In Fig. 12A, two lenticular lens films LLF are attached to the central portion of the image display device and the two lenticular lens films LLF are separated from each other. The first point p1 adjacent to the right cylindrical lens film LLF, the second point p2 between the lenticular lens film LLF and the center of the display device, and the third point p3 corresponding to the lenticular lens film LLF and The brightness of each point of the fourth point p4.

As shown in Fig. 12B, the luminance at the first point p1 is 324.1 nits, the luminance at the second point p2 is 327.1 nits, and the luminance at the third point p3 is 370.9 nits, at the fourth point. The brightness of p4 is 359.7 nits.

That is, the average brightness of the first point p1 and the second point p2 to which the lenticular lens film is not attached is 325.6 nits, and the average brightness of the third point p3 and the fourth point p4 to which the lenticular lens film LLF is attached is 365.3 ny. special. In the case where the lenticular lens film LLF is attached, the brightness is increased by about 12.2%.

Further, when the brightness is generally highest at the center of the display device, the brightness at the third point p3 and the fourth point p4 to which the lenticular lens film LLF is attached is higher than the second point at the center of the lenticular lens film LLF not attached The brightness of point p2.

Therefore, the front brightness can be further improved by applying the lenticular lens film to the two-dimensional image display device.

In the three-dimensional image display device according to the present invention, the lenticular lenses are arranged on the pattern retardation film to concentrate the light in a predetermined direction. Therefore, 3D crosstalk can be prevented, and viewing angle performance can be improved. In addition, the aperture ratio and brightness increase.

Furthermore, the lenticular lens is arranged on the polarizer of the two-dimensional image display device to concentrate the light from the backlight to improve the brightness.

It will be appreciated that various modifications and changes can be made to the present invention without departing from the spirit and scope of the invention. Therefore, it is to be understood that the invention is intended to cover the modifications and

The present application claims the benefit of the Korean Patent Application No. 10-2010-0136911 filed on Dec. 28, 2010, and the Korean Patent Application No. 10-2011-0049115 filed on May 24, 2011, the All references are hereby incorporated by reference.

10. . . Three-dimensional image display device

20. . . Display panel

twenty two. . . First substrate

twenty four. . . Gate electrode

26. . . Gate insulation

28. . . Semiconductor layer

32. . . Source electrode

34. . . Helium electrode

36. . . Passivation layer

36a. . . Bungee contact hole

38. . . Pixel electrode

40. . . Second substrate

42. . . Black matrix

44. . . Filter layer

46. . . Common electrode

48. . . Liquid crystal layer

50. . . Polarizing film / second polarizer

52. . . First polarizer

60. . . Pattern retardation film

62. . . Base film

64. . . Phase difference layer

66. . . Black strip

68. . . Adhesive layer

80. . . Polarized glasses

82. . . Left eye lens

84. . . Right eye lens

110. . . Three-dimensional image display device

120. . . Display panel

122. . . First substrate

124. . . Gate electrode

126. . . Gate insulation

128. . . Semiconductor layer

132. . . Source electrode

134. . . Helium electrode

136. . . Passivation layer

136a. . . Bungee contact hole

138. . . Pixel electrode

140. . . Second substrate

142. . . Black matrix

144. . . Filter layer

146. . . Common electrode

148. . . Liquid crystal layer

150. . . Polarizing film / second polarizer

152. . . First polarizer

160. . . Pattern retardation film

162. . . First base film

164. . . Phase difference layer

168. . . Adhesive layer

170. . . Cylindrical lens

172. . . Second base film

174. . . Cylindrical lens

180. . . Polarized glasses

182. . . Left eye lens

184. . . Right eye lens

220. . . Display panel

222. . . First substrate

224. . . Gate electrode

226. . . Gate insulation

228. . . Semiconductor layer

232. . . Source electrode

234. . . Helium electrode

236. . . Passivation layer

236a. . . Bungee contact hole

238. . . Pixel electrode

240. . . Second substrate

242. . . Black matrix

244. . . Filter layer

246. . . Common electrode

248. . . Liquid crystal layer

250. . . Second polarizer

252. . . First polarizer

270. . . Cylindrical lens

272. . . Base film

274. . . Cylindrical lens

B. . . Blue subpixel

BM. . . Black matrix

BS. . . Black strip area

DA. . . Display area

G. . . Green subpixel

H1. . . First height

H2. . . Second height

H3. . . Third height

Hl. . . Left eye horizontal pixel line

Hr. . . Right eye horizontal pixel line

LL. . . Cylindrical lens

LLF. . . Cylindrical lens

NDA. . . Non-display area

P1. . . The first point

P2. . . Second point

P3. . . Third point

P4. . . fourth point

R. . . Red subpixel

Rl. . . Left eye retardation film

Rr. . . Right eye retardation film

T. . . Thin film transistor

P _L . . . Lens spacing

P _P . . . Pixel spacing

BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings, which are set forth in the claims

In the schema:

1 is a perspective view illustrating a polarized glasses type three-dimensional image display device in the prior art;

2 is a schematic cross-sectional view showing a polarized glasses type three-dimensional image display device including a liquid crystal display panel as a display panel in the prior art;

3A to 3C are schematic cross-sectional views showing 3D crosstalk of the polarized glasses type three-dimensional image display device of the prior art;

4 is a perspective view illustrating a polarized glasses type three-dimensional image display device according to an embodiment of the present invention;

5 is a schematic cross-sectional view showing a polarized glasses type three-dimensional image display device according to an embodiment of the present invention;

6 is a schematic diagram for explaining 3D crosstalk in a three-dimensional image display device according to an embodiment of the present invention;

7 is a schematic view showing simulation results of 3D crosstalk versus refraction angle in a three-dimensional image display device having different conditions according to the present invention;

Figure 8 is a view showing brightness versus refraction angle in a three-dimensional image display device having different focal lengths according to the present invention;

Figure 9 is a cross-sectional view showing a two-dimensional image display device including a cylindrical lens film according to an embodiment of the present invention;

10A and 10B are schematic views respectively illustrating paths of light rays in a two-dimensional image display device before and after attaching a lenticular lens;

11A and 11B are diagrams respectively illustrating a two-dimensional image display device before and after attaching the lenticular lens;

12A is a schematic view illustrating an image display device for measuring brightness depending on the presence of a lenticular lens;

Fig. 12B is a diagram showing the brightness at each point of Fig. 12A.

110. . . Three-dimensional image display device

120. . . Display panel

150. . . Polarizing film / second polarizer

160. . . Pattern retardation film

170. . . Cylindrical lens

180. . . Polarized glasses

182. . . Left eye lens

184. . . Right eye lens

B. . . Blue subpixel

DA. . . Display area

G. . . Green subpixel

Hl. . . Left eye horizontal pixel line

Hr. . . Right eye horizontal pixel line

NDA. . . Non-display area

R. . . Red subpixel

Rl. . . Left eye retardation film

Rr. . . Right eye retardation film

P _L . . . Lens spacing

P _P . . . Pixel spacing

Claims (12)

An image display device includes: a display panel, the display panel includes a display area and a non-display area, wherein the display area includes: a left-eye horizontal pixel line displaying a left-eye image and a right-right image An eye-level pixel line; a polarizing film is arranged on the display panel, wherein the polarizing film linearly polarizes the left-eye image and the right-eye image; and a pattern retardation film is arranged on the polarizing film, The pattern retardation film includes: a left-eye retardation film and a right-eye retardation film, wherein the left-eye retardation film corresponds to a left-eye horizontal pixel line, and the linearly polarized left-eye image is changed a left-circularly polarized image, the right-eye retardation film corresponding to the right-eye horizontal pixel line, and the linearly polarized image becomes a right-circularly polarized image; and a cylindrical lens film, Arranging on the polarizing film, the lenticular lens film comprises a lenticular lens, wherein the lenticular lenses respectively correspond to a left-eye retardation film and the right-eye retardation film, wherein the lenticular lens film Further including a base film The base film and the patterned retardation film is directly adjacent to, and having -10nm to + plane retardation value within a range 10nm and to 50nm thickness retardation value in the range of + -50 nm. The image display device according to claim 1, wherein the pattern retardation film is arranged between the polarizing film and the lenticular lens film. The image display device according to claim 1, wherein the lens pitch of the lenticular lens film has a distance from a pixel pitch of ±5 μm, and the pixel pitch is a horizontal pixel line from an adjacent left eye. The distance from the upper end of one of the horizontal line of the right eye to the upper end of the adjacent left eye horizontal pixel line and the other of the right eye horizontal pixel line. The image display device according to claim 1, wherein the lenticular lens has a focal length in a range of about 2000 μm to about 3000 μm. The image display device according to claim 4, wherein the lenticular lens has a thickness in a range of from about 20 μm to about 200 μm. . The image display device according to claim 1, wherein the base film of the lenticular lens film comprises one of cellulose triacetate, a cycloolefin polymer, and an acrylic fiber material having a zero phase difference. The image display device of claim 1, wherein the display panel further comprises a pair of black matrices that should be non-display areas. The image display device of claim 7, wherein the black matrix has a width of about 70 μm. The image display device of claim 7, wherein the display panel comprises: a first substrate and a second substrate separated from each other; a thin film transistor on the first substrate; and a pixel electrode connected To the thin film transistor; a common electrode forming a capacitance with the pixel electrode; the black matrix having an opening on the second substrate; and a color filter layer on the second substrate and correspondingly opening. An image display device comprising: a display panel comprising a plurality of horizontal pixel lines, each horizontal pixel line comprising a plurality of pixels; a linear polarizing film arranged on the display panel; and a cylindrical lens film Arranging on the linear polarizing film, the lenticular lens film comprises a lenticular lens, wherein the lenticular lens corresponds to a horizontal pixel line, wherein the lenticular lens film further comprises a base film, the base film It is directly adjacent to the linear polarizing film and has a plane phase difference value in the range of -10 nm to +10 nm and a thickness phase difference in the range of -50 nm to +50 nm. The image display device according to claim 10, wherein the lens pitch of the lenticular lens film has a distance ranging from a pixel pitch of ±5 μm from the upper end of one horizontal pixel line to the next The distance from the upper end of the horizontal pixel line. The image display device according to claim 10, wherein the base film of the lenticular lens film comprises one of cellulose triacetate, a cycloolefin polymer, and an acrylic fiber material having a zero phase difference.