KR102143372B1 - Multi view display and method of fabricating the same - Google Patents

Abstract

The present invention relates to a multi-view display device, comprising: a cell panel including a pixel array in which a first black matrix is formed; A lenticular lens film for separating light paths of light from pixels of the pixel array for each viewing angle; And a second black matrix formed on one of the cell panel and the lenticular lens film.

Description

Multi-visual display device and its manufacturing method TECHNICAL FIELD [MULTI VIEW DISPLAY AND METHOD OF FABRICATING THE SAME}

The present invention relates to a multi-view display device capable of displaying different images for each viewing angle and a method of manufacturing the same.

Research and commercialization of flat panel displays (FPDs) that replace conventional cathode ray tubes (CRT) as interest in information display devices has recently increased and the demand to use portable information media has increased. Is actively progressing. Flat panel displays include Liquid Crystal Display (LCD), Field Emission Display (FED), Plasma Display Panel (PDP), and Organic Light Emitting Display (OLED). ), such as an electroluminescence display (ELD) and an electrophoresis display (EPD).

A liquid crystal display (LCD) is advantageous in thinning and excellent in image quality, and thus is applied to notebook computers and desktop monitors, and is widely applied as a display device of portable information devices that reproduce multimedia contents. The liquid crystal display is combined with a global positioning system and is widely used as a display device for a navigation system that displays movies or TV programs.

As shown in FIG. 1, the multi-view display device may display images of different video contents to users located at different angles from the display device DIS. For example, a navigation system using a multi-visual display may show a map image to a driver and a movie or TV program to a passenger in a passenger seat.

In the multi-visual display device, as shown in FIG. 2, a barrier 4 is installed between the display panel 2 and the user or behind the display panel 2, and the pixels viewed by the user A Separate the pixels that user B sees. As for the barrier 4, a Parallax barrier method is generally used. The multi-view display device displays a first view image on pixels viewed by user A and a second view image on pixels viewed by user B. In this case, user A sees the first view image and user B sees the second view image.

In the multi-view display device as shown in FIG. 2, the pixels of the display panel 2 and the barrier 4 must be properly aligned according to the design values in order to properly implement multiple viewing angles. When the pixels of the display panel 2 and the barrier 4 are aligned according to the design values, the barrier 4 may transmit and block light according to the viewing angle of users. In Fig. 2, P is the pixel pitch of the display panel 2, S is the distance between the display surface of the display panel 2 and the barrier 4, D is the distance between the user and the barrier 4, E Denotes the distance between users, respectively. The distance D between the barrier 4 and the user is determined according to D = SE/P.

3 is a diagram showing a cross-sectional structure of a liquid crystal display (LCD) implemented as a multi-view display device. The liquid crystal display (LCD) includes a thin film transistor (hereinafter referred to as "TFT") array substrate 6, a color filter array substrate 8 facing the TFT array substrate, and a TFT array substrate 6. A liquid crystal layer 10 formed between the color filter array substrates 8 and a barrier substrate 14 are included. The barrier substrate 14 may be adhered to the upper surface of the color filter array substrate 8 with the adhesive layer 12 or may be adhered to the rear surface of the TFT substrate 6. A barrier substrate 14 disposed thereon, and an adhesive layer 12 bonding the color filter array substrate 8 and the barrier substrate 14 to each other.

The TFT array substrate 6 includes data lines and gate lines intersecting each other, TFTs formed at each intersection of data lines and gate lines, pixel electrodes defined in a matrix form by data lines and gate lines, and liquid crystals. It includes a storage capacitor (Cst) for maintaining the voltage of the cells. The color filter array substrate 8 includes a black matrix, a color filter, and a common electrode.

A polarizing plate is attached to each of the color filter array substrate 8 and the TFT array substrate 6, and an alignment film for setting a pre-tilt angle of the liquid crystal is formed. A spacer is formed between the color filter array substrate 8 and the TFT array substrate 6 to maintain a cell gap of the liquid crystal layer.

In the conventional multi-view display device, since light is blocked by the barrier 4, luminance is lowered. In the conventional multi-vision display device, there is a problem of crosstalk in which two images are seen together when the viewer deviates from the viewing angle of the design value.

The present invention provides a multi-view display device capable of increasing luminance and reducing interference and a method of manufacturing the same.

The multi-view display device of the present invention includes a cell panel including a pixel array in which a first black matrix is formed; A lenticular lens film for separating light paths of light from pixels of the pixel array for each viewing angle; And a second black matrix formed on any one of the cell panel and the lenticular lens film, wherein the pixel array is N (N is a positive integer of 2 or more) disposed within one lens pitch of the lenticular lens film. Pixels, the N pixels display images of different video content, light propagating through the N pixels is divided into different viewing angles according to the incident angle of the lens surface, and the N pixels Are included in the first to the Nth pixels, the Mth (M is an arbitrary integer of 1 or more and N or less) pixel displays the image of the Mth video content, and the light passing through the Mth pixel is viewed by the Mth It is characterized by being propagated at an angle and shown to the M-th viewer.

The present invention uses a lenticular lens to separate optical paths of different view images for each viewing angle to increase luminance, and to form a slit black matrix on a lenticular lens film or cell panel to interfere with view images between neighboring viewing angles. It can prevent the phenomenon. In addition, the present invention simplifies the method of manufacturing a multi-view display device, thereby reducing the cost of the manufacturing process.

1 is a diagram schematically showing a multi-view display device.
2 is a diagram schematically showing a multi-view display device using a barrier.
3 is a diagram showing a cross-sectional structure of a liquid crystal display (LCD) implemented as a multi-view display device.
4 is a cross-sectional view showing a multi-view display device according to a first embodiment of the present invention.
5 is a cross-sectional view showing a multi-view display device according to a second exemplary embodiment of the present invention.
6 is a diagram showing an example of a method of forming a slit black matrix in the lenticular lens shown in FIG. 5.
7 is a diagram showing an experiment method for comparing interference amounts according to the presence or absence of a slit black matrix.
8 is a diagram showing a result of an interference strategy experiment of a multi-visual display device without a slit black matrix.
9 is a diagram showing a result of an interference strategy experiment of a multi-visual display device including a slit black matrix.
10 is a diagram showing a method of implementing a two-view image in a multi-view display device of the present invention.
11 is a diagram showing a method of implementing a 4-view image in a multi-view display device according to the present invention.
12 and 13 are cross-sectional views showing a multi-view display device according to a third embodiment of the present invention.
14 is a cross-sectional view showing a multi-view display device according to a fourth embodiment of the present invention.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. The same reference numerals throughout the specification mean substantially the same elements. In the following description, when it is determined that a detailed description of a known function or configuration related to the present invention may unnecessarily obscure the subject matter of the present invention, a detailed description thereof will be omitted.

4 is a diagram showing a multi-view display device according to a first embodiment of the present invention.

Referring to FIG. 4, the multi-view display device of the present invention includes a cell panel 100 and a lenticular lens film 200.

The multi-view display device of the present invention may be implemented based on a flat panel display device. Hereinafter, the cell panel 100 is exemplified as a display panel of a liquid crystal display, but is not limited thereto.

The cell panel 100 includes a pixel array 104 in which data lines and gate lines (or scan lines) are orthogonal and pixels are arranged in a matrix form. Each of the pixels may include sub-pixels of different colors for color implementation.

As shown in FIG. 4, when different view images are reproduced at each of the left viewing angle, the center viewing angle, and the right viewing angle, the pixel array 104 may be divided into three pixel groups. The pixel array 104 includes a first pixel group L displaying an image of a first video content (hereinafter, referred to as a "first view image") (Left View), an image of a second video content (hereinafter, referred to as "first view image"). A second pixel group (C) displaying a center view (referred to as a "2 view image"), and a third displaying an image of the third video content (hereinafter referred to as a "third view image") (Right View). Images of different video contents including the pixel group R are displayed together.

The lenticular lens film 200 separates the optical path of the first view image, the optical path of the second view image, and the optical path of the third view image according to viewing angles using a lenticular lens surface. A first pixel belonging to the first pixel group L, a second pixel belonging to the second pixel group C, and a third pixel group within one lens pitch P _lens of the lenticular lens film 200 ( A third pixel belonging to R) is disposed. The first pixel displays a first view image, and light passing through the first pixel propagates at a first viewing angle. The second pixel displays a second view image, and light passing through the second pixel propagates at a second viewing angle. The third pixel displays a third view image, and light passing through the third pixel propagates at a third viewing angle. The first pixel is shown to a viewer positioned at a left viewing angle through the lens surface. The second pixel is shown to a viewer located at a central viewing angle through the lens surface. The third pixel is shown to the viewer located at the right viewing angle through the lens surface. Accordingly, a viewer may view the first to third view images according to the viewing angle, and a plurality of viewers having different viewing angles may simultaneously view the first to third view images.

Since the lenticular lens film 200 does not block light, the luminance of the first to third view images may be increased compared to a barrier. Accordingly, since the multi-view display device of the present invention can increase luminance, the cost and power consumption of a backlight (BLU), not shown, can be reduced, and can be used as an outdoor display device.

The cell panel 100 includes an upper plate and a lower plate bonded with a sealant. A liquid crystal layer is formed between the upper plate and the lower plate. A color filter array may be formed on the first surface of the upper plate in contact with the liquid crystal layer.

The color filter array includes a color filter and a pixel black matrix formed on the upper substrate 103. The pixel black matrix is formed at the boundary between neighboring pixels to prevent optical interference between neighboring pixels. A slit black matrix (hereinafter, referred to as “slit BM”) 107 is formed on the second surface of the upper substrate 103.

The width of the slit BM 107 may vary depending on the model of the multi-visual display device, but only if it is larger than the width of the pixel black matrix of the pixel array 104 to block unwanted light from the neighboring view images, Interference can be prevented. The slit BM 107 further provides an effect of increasing the viewing angle by preventing interference of view images from neighboring viewing angles.

The slit BM 107 may be formed by a photolithography process, a screen printing process, or the like. The slit BM prevents interference between neighboring view images displayed at neighboring viewing angles by blocking light diffused at a wide angle. The upper polarizing plate 102 is adhered to the second surface of the upper substrate 103. The slit BM 107 is covered by the upper polarizing plate 102. The lenticular lens film 200 is adhered to the upper polarizing plate 102 with an adhesive layer 101.

The lower panel of the cell panel 100 includes a TFT array formed on the lower substrate 105. The TFT array is used to maintain voltages of data lines and gate lines, TFTs formed at intersections of data lines and gate lines, pixel electrodes defined in a matrix form by data lines and gate lines, and liquid crystal cells. It includes a storage capacitor (Cst) and the like. The lower polarizing plate 106 is adhered to the lower substrate 105.

An alignment layer for setting a pre-tilt angle of the liquid crystal is formed on the surfaces of the upper substrate 103 and the lower substrate 105 in contact with the liquid crystal layer. A spacer is formed between the upper substrate 103 and the lower substrate 105 to maintain a cell gap of the liquid crystal layer.

A cell panel driver (not shown) includes a data driving circuit, a gate driving circuit, and a timing controller. The data driving circuit converts digital video data of the first to third view images input from the timing controller into analog gamma voltages, generates data voltages, and supplies the data voltages to the data lines. The gate driving circuit supplies a gate pulse (or scan pulse) synchronized with a data voltage supplied to the data lines to the gate lines under the control of a timing controller, and sequentially shifts the gate pulses. The timing controller transmits digital video data of the first to third view images to the data driving circuit, and controls operation timings of the data driving circuit and the gate driving circuit.

5 is a diagram showing a multi-view display device according to a second embodiment of the present invention. The embodiment of FIG. 5 is different from the embodiment of FIG. 4 in the configuration in which the slit BM is not formed on the cell panel 100 but is formed on the lenticular lens film 100. Except for the slit BM, it is substantially the same as the embodiment of FIG. 4. In the embodiment of FIG. 5, detailed descriptions of the same configuration as the embodiment of FIG. 4 are omitted.

Referring to FIG. 5, the multi-view display device of the present invention includes a cell panel 100 and a lenticular lens film 200 having a slit BM formed thereon.

The lenticular lens film 200 includes a slit BM 201. The lenticular lens film 200 includes a first surface on which lens surfaces in which mountains and valleys are repeated, and a flat second surface on the opposite side thereof. The slit BM 201 may be formed on the second surface at a position opposite to the valley between the lens surfaces. In this embodiment, a separate slit BM is not formed in the cell panel 100. The width of the slit BM 201 is larger than the width of the pixel black matrix of the pixel array 104. The method of forming the slit BM 201 on the lenticular lens film 200 may be a method as shown in FIG. 6, but is not limited thereto.

6 is a diagram illustrating an example of a method of forming a slit BM in the lenticular lens shown in FIG. 5.

Referring to FIG. 6, first, a lens surface of the lenticular lens film 200 is formed as shown in (A). Subsequently, a photosensitive resin layer 202 having adhesive properties as shown in (B) and (C) is applied to the flat surface of the lenticular lens film 200 opposite the lens surface, and ultraviolet rays (UV ) And perform rear exposure. When ultraviolet rays (UV) pass through the lens surface by the rear exposure, it is condensed to partially expose the resin layer 202. The exposed portion of the resin layer 200 is cured to lower adhesive strength. Accordingly, the present invention does not require a separate photo mask because self-alignment using the rear exposure process is used in the slit BM process.

Subsequently, as in (D) and (E), a transfer sheet 203 to which a black coloring rayer 203a is applied is adhered to the resin layer 202, and then the sheet 203 is attached thereto. When peeled off, the black color layer 203a together with the sheet 203 is peeled off at a cured layer having a low adhesive strength in the resin layer 202. As a result, patterns of the slit BM 201 remain in the lenticular lens film 200.

The inventors of the present invention conducted an experiment to verify the anti-interference effect according to the presence or absence of a slit BM. In the experimental method, as shown in FIG. 7, the first to third view images are displayed on a multi-vision display device and the luminance of the displayed image is measured through a luminance meter. A circularly polarized filter was installed in front of the luminance meter. In order to measure the luminance change according to the viewing angle (θ(+), θ(-),), the luminance meter measured the luminance of the displayed image while shifting by 1 degree. The inventors have differently set test pattern grayscales of the first to third view images to distinguish the first to third view images. The test pattern of the first view image was composed of white gradation-black gradation-black gradation. The test pattern of the second view image was composed of black gradation-white gradation-black gradation. The test pattern of the third view image was composed of black gradation-black gradation-white gradation. As a result of this experiment, as can be compared in FIGS. 8 and 9, it was confirmed that the amount of interference of neighboring images was significantly reduced in the multi-view display device including the slit BM as shown in FIGS. 8 and 9, the horizontal axis is the viewing angle (θ) and the vertical axis is the luminance (nit). In FIGS. 8 and 9, an interference area in which two images are viewed together at a viewing angle adjacent to the circle.

The present invention is not limited to a three-view image multi-view display device as in the above-described embodiment. For example, in the present invention, as shown in FIGS. 4, 5, 10, and 11, N (N is a positive integer of 2 or more) displaying different view images within one lens pitch (P _lens ) By arranging pixels, an N-view image can be implemented. In the N-view image, the viewing angle is separated because the incident angles of the lens surfaces are different.

10 is a diagram showing a method of implementing a two-view image in a multi-view display device of the present invention. In the example of FIG. 10, a first pixel L displaying a first view image View#1 and a second view image View#1 within one lens pitch Plens of the lenticular lens film 200 A second pixel R displaying is disposed. The optical paths of the first and second view images View#1 and View#2 are separated because the incident angle of the lens surface is different. Accordingly, the viewer can view different view images according to the viewing angle.

11 is a diagram showing a method of implementing a 4-view image in a multi-view display device according to the present invention. In the example of FIG. 11, a first pixel 1 displaying a first view image View#1 and a second view image View#1 within one lens pitch Plens of the lenticular lens film 200 are shown. The second pixel 2 to be displayed, the third pixel 3 to display the third view image View#3, and the fourth pixel 4 to display the fourth view image View#4 are disposed. . The optical paths of the first to fourth view images (View#1, View#2, View#3, and View#4) are separated because the incident angle of the lens surface is different. Accordingly, the viewer can view different view images according to the viewing angle.

10 and 11, the multi-view display device further includes a slit BM 201 in addition to the pixel black matrix of the cell panel.

In the multi-view display device of the present invention, as shown in FIGS. 12 and 13, a polarization separation element may be installed above or below the lenticular lens film 200 to realize three-dimensional images of different contents for each viewing angle.

12 and 13 are diagrams showing a multi-view display device according to a third embodiment of the present invention.

12 and 13, the multi-view display device of the present invention includes a cell panel 100, a lenticular lens film 200, and a polarization separation element 210.

This multi-view display device includes a slit BM 201. The slit BM 201 may be formed on the cell panel 100 or the lenticular lens film 200 as described above.

The polarization separating element 210 may be implemented as a patterned retarder film. The pattern retarder film includes a first retarder 210a and a second retarder 210a having different optical axes. The polarization separating element 210 may be adhered to the upper polarizing plate 102 as shown in FIG. 12, but is not limited thereto. For example, the polarization separating device 210 may be disposed on the lenticular lens film 200. Therefore, the polarization separation element 210 may be disposed above or below the lenticular lens film 200.

Each of the first and second retarders 210a and 210b of the polarization separating element 210 is manufactured to have a width substantially equal to one lens pitch Plens of the lenticular lens film 200. The first retarder 210a overlaps the odd-numbered lenses LENS1 and LENS3 of the lenticular lens film 200. The second retarder 210b overlaps the superior lenses LENS2 and LENS4 of the lenticular lens film 200.

The first and second retarders 210a and 210b pass through the upper polarizing plate 101 in order to separate the polarization of light that has passed through the upper polarizing plate 101 of the cell panel 100 into polarized light of different orthogonal optical axes. Delays one light with different phase delay values. Accordingly, the light passing through the first retarder 210a and the odd-numbered lenses LENS1 and LENS3 is light of the first polarization. The light passing through the second retarder 210b and the even-th lenses LENS2 and LENS4 is light of the second polarized light of the optical axis orthogonal to the first polarized light. The first and second polarized light may be left circularly polarized light and right circularly polarized light as shown in FIGS. 12 and 13.

The polarizing glasses 302 include a left eye filter passing through a first polarized light and a right eye filter passing through a second polarized light. Therefore, when the viewer wears the polarizing glasses 302, the viewer can see the pixels seen as the first polarized light passing through the left eye filter with the left eye, and the pixels seen as the second polarized light passing through the right eye filter with the right eye. have.

The multi-view display device of the present invention may be implemented based on a flat panel display device. Hereinafter, the cell panel 100 is exemplified as a display panel of a liquid crystal display, but is not limited thereto. The cell panel 100 includes a pixel array 104 in which data lines and gate lines (or scan lines) are orthogonal and pixels are arranged in a matrix form. Each of the pixels may include sub-pixels of different colors for color implementation.

The pixel array 104 includes a left-eye image pixel group positioned on an optical path passing through the odd-numbered lenses LENS1 and LENS3, and a left-eye image pixel group positioned on an optical path passing through the even-numbered lenses LENS2 and LENS3. It can be divided into.

The left-eye image pixel group includes pixels viewed by the viewer's left eye through the left-eye filter of the polarizing glasses 302. The left-eye image pixel group includes N pixels that separate and display N view images. For example, the left-eye image pixel group includes a first pixel L1 displaying a first view image, a second pixel C1 displaying a second view image, and a third pixel R1 displaying a third view image. ) Can be included.

The right-eye image pixel group includes pixels viewed through the right-eye filter of the polarizing glasses 302 to the viewer's right eye. The right eye image pixel group includes N pixels that separate and display N view images. For example, the right eye image pixel group includes a fourth pixel L2 displaying a fourth view image, a fifth pixel C2 displaying a fifth view image, and a sixth pixel R2 displaying a sixth view image. ) Can be included.

When the viewer wears the polarized glasses 302, they can view 3D images of different contents according to the viewing angle. If the first view image and the fourth view image are a left-eye image and a right-eye image divided from the first stereoscopic image, the viewer may view the first stereoscopic image from a left viewing angle. If the second view image and the fifth view image are a left-eye image and a right-eye image divided from the second stereoscopic image, the viewer can view the second stereoscopic image at a central viewing angle. If the third view image and the sixth view image are the left-eye image and the right-eye image divided from the third stereoscopic image, the viewer can view the third stereoscopic image from the right viewing angle.

A cell panel driver (not shown) includes a data driving circuit, a gate driving circuit, and a timing controller. The data driving circuit generates data voltages by converting digital video data of a 3D image input from a timing controller into an analog gamma voltage in 3D mode, and supplies the data voltages to the data lines. The gate driving circuit supplies a gate pulse (or scan pulse) synchronized with a data voltage supplied to the data lines to the gate lines under the control of a timing controller, and sequentially shifts the gate pulses. The timing controller transmits digital video data of N stereoscopic images to a data driving circuit, and controls operation timings of the data driving circuit and the gate driving circuit.

12 and 13 are examples in which three stereoscopic images are separated for each viewing angle, but are not limited thereto. For example, the multi-view display device of the present invention displays N different view images within one lens pitch as shown in FIGS. 10 and 11, and polarization of light passing through the odd-numbered lens using a polarization separation element. By making it different from the polarization of light passing through the superior lens, it is possible to implement N three-dimensional images separated by viewing angles.

The multi-view display device of the present invention may implement N three-dimensional images separated by viewing angles by combining the barrier 111, the polarization separation element 220, and the polarization glasses 302 as shown in FIG. 14.

Referring to FIG. 14, the multi-view display device of the present invention includes a cell panel 100, a barrier device 110, and a polarization separation device 220.

The polarization separating device 220 may be implemented as a pattern retarder film. The pattern retarder film includes a first retarder 220a and a second retarder 220a having different optical axes. The polarization separating element 220 may be adhered to the upper polarizing plate 102 as shown in FIG. 14, but is not limited thereto. For example, the polarization separating element 220 may be disposed between the barrier element 110 and the cell panel 100 element or under the barrier element 110. Accordingly, the polarization separation element 220 may be disposed above or below the barrier element 110.

The barrier element 110 includes barriers 111 that block incident light and slits 112a and 112b that pass incident light, and light passing through the slits 112a and 112b and pixels of the pixel array 104 The optical path of is separated by viewing angle. The barriers 111 may be formed on the third substrate 113 and adhered to the cell panel 100. The barrier element 110 may be bonded between the lower substrate 105 and the lower polarizing plate 106 of the cell panel 100 as shown in FIG. 14, but is not limited thereto. The barrier element 110 may be adhered under the cell panel 100 or may be adhered on the cell panel 100.

Each of the first and second retarders 220a and 220b of the polarization separating element 220 is manufactured to have a width substantially equal to one pitch Pbar of the barrier 111. The first retarder 210a overlaps the odd-numbered slit 112a of the barrier element 110. The first retarder 210b overlaps the even-th slit 112b of the barrier element 110.

The first and second retarders 220a and 220b pass through the upper polarizing plate 101 in order to separate the polarization of light that has passed through the upper polarizing plate 101 of the cell panel 100 into polarized light of different orthogonal optical axes. Delays one light with different phase delay values. Accordingly, the light passing through the first retarder 220a and the odd-numbered slit 112a is light of the first polarization. The light passing through the second retarder 22b and the even-th slit 112b is light of the second polarized light of the optical axis orthogonal to the first polarized light. The first and second polarized light may be left circularly polarized light and right circularly polarized light as shown in FIG. 14.

The polarizing glasses 302 include a left eye filter passing through a first polarized light and a right eye filter passing through a second polarized light. Therefore, when the viewer wears the polarizing glasses 302, the viewer can see the pixels seen as the first polarized light passing through the left eye filter with the left eye, and the pixels seen as the second polarized light passing through the right eye filter with the right eye. have.

The multi-view display device of the present invention may be implemented based on a flat panel display device. Hereinafter, the cell panel 100 is exemplified as a display panel of a liquid crystal display, but is not limited thereto. The cell panel 100 includes a pixel array 104 in which data lines and gate lines (or scan lines) are orthogonal and pixels are arranged in a matrix form. Each of the pixels may include sub-pixels of different colors for color implementation.

The pixel array 104 may be divided into a left-eye image pixel group positioned on an optical path passing through the odd-numbered slit 112a and a left-eye image pixel group positioned on an optical path passing through the odd-numbered slit 112a. have.

The left-eye image pixel group includes pixels viewed by the viewer's left eye through the left-eye filter of the polarizing glasses 302. The left-eye image pixel group includes N pixels that separate and display N view images. For example, the left-eye image pixel group includes a first pixel L1 displaying a first view image, a second pixel C1 displaying a second view image, and a third pixel R1 displaying a third view image. ) Can be included.

The right-eye image pixel group includes pixels viewed through the right-eye filter of the polarizing glasses 302 to the viewer's right eye. The right eye image pixel group includes N pixels that separate and display N view images. For example, the right eye image pixel group includes a fourth pixel L2 displaying a fourth view image, a fifth pixel C2 displaying a fifth view image, and a sixth pixel R2 displaying a sixth view image. ) Can be included.

When the viewer wears the polarized glasses 302, they can view 3D images of different contents according to the viewing angle. If the first view image and the fourth view image are a left-eye image and a right-eye image divided from the first stereoscopic image, the viewer may view the first stereoscopic image from a left viewing angle. If the second view image and the fifth view image are a left-eye image and a right-eye image divided from the second stereoscopic image, the viewer can view the second stereoscopic image at a central viewing angle. If the third view image and the sixth view image are the left-eye image and the right-eye image divided from the third stereoscopic image, the viewer can view the third stereoscopic image from the right viewing angle.

A cell panel driver (not shown) includes a data driving circuit, a gate driving circuit, and a timing controller. The data driving circuit generates data voltages by converting digital video data of a 3D image input from a timing controller into an analog gamma voltage in 3D mode, and supplies the data voltages to the data lines. The gate driving circuit supplies a gate pulse (or scan pulse) synchronized with a data voltage supplied to the data lines to the gate lines under the control of a timing controller, and sequentially shifts the gate pulses. The timing controller transmits digital video data of N stereoscopic images to a data driving circuit, and controls operation timings of the data driving circuit and the gate driving circuit.

It will be appreciated by those skilled in the art through the above description that various changes and modifications can be made without departing from the technical idea of the present invention. Accordingly, the present invention should not be limited to the content described in the detailed description, but should be defined by the claims.

100: cell panel 107, 201: slit BM
200: lenticular lens film 210, 220: polarization separation element

Claims (17)

A cell panel including a pixel array in which a first black matrix is formed;
A lenticular lens film for separating light paths of light from pixels of the pixel array for each viewing angle; And
Including a second black matrix formed on any one of the cell panel and the lenticular lens film,
The pixel array,
Including N (N is a positive integer of 2 or more) pixels disposed within one lens pitch of the lenticular lens film,
The N pixels display images of different video contents,
The light propagating through the N pixels is divided into different viewing angles according to the incident angle of the lens surface,
The N pixels,
Including first to Nth pixels,
The Mth (M is an arbitrary integer of 1 or more and N or less) pixel displays the image of the Mth video content, and the light that has passed through the Mth pixel is propagated to the Mth viewing angle and is shown to the Mth viewer. Multi-vision display device made by. The method of claim 1,
The second black matrix is formed on the polarizing plate of the cell panel,
The lenticular lens film is attached to a polarizing plate on which the second black matrix is formed. The method of claim 1,
The lenticular lens film includes a first surface on which lens surfaces in which mountains and valleys are repeated, and a flat second surface on the opposite side thereof,
The second black matrix is formed on the second surface at a position opposite to the valley. delete The method according to any one of claims 1 to 3,
The pixel array,
Including first to third pixels disposed within one lens pitch of the lenticular lens film,
The first pixel displays an image of a first video content, and light that has passed through the first pixel is propagated at a first viewing angle to be viewed by a first viewer,
The second pixel displays an image of a second video content, and light that has passed through the second pixel is propagated at a second viewing angle to be viewed by a second viewer,
The third pixel displays an image of a third video content, and the light that has passed through the third pixel is propagated at a third viewing angle to be viewed by a third viewer. The method according to claim 2 or 3,
Further comprising a polarization separation element disposed above or below the lenticular lens film,
The polarization separation element,
A first retarder overlapping an odd-numbered lens surface of the lenticular lens; And
Including a second retarder overlapping the superior lens surface of the lenticular lens,
Light passing through the first retarder is light of first polarization,
The light passing through the second retarder is a second polarized light. The method of claim 6,
And polarizing glasses including a left eye filter passing through the first polarized light and a right eye filter passing through the second polarized light. The method of claim 7,
The pixel array,
A left-eye image pixel group positioned on an optical path passing through an odd-numbered lens of the lenticular lens film; And
Including a right-eye image pixel group positioned on the optical path passing through the even lens of the lenticular lens film,
The left eye image pixel group,
Including N (N is a positive integer greater than or equal to 2) pixels visible to the viewer's left eye through the left eye filter of the polarizing glasses,
The right eye image pixel group,
A multi-view display device comprising N pixels viewed by the viewer's right eye through a right eye filter of the polarizing glasses. The method of claim 8,
Each of the video contents includes three-dimensional image contents including a left-eye image and a right-eye image,
The pixels of the left eye image pixel group,
A first pixel displaying a first view image;
A second pixel displaying a second view image; And
Including a third pixel displaying a third view image,
The pixels of the right eye image pixel group,
A fourth pixel displaying a fourth view image;
A fifth pixel displaying a fifth view image; And
And a sixth pixel displaying a sixth view image,
The stereoscopic image of the first video content includes the first view image and the fourth view image,
The stereoscopic image of the second video content includes the second view image and the fifth view image,
The stereoscopic image of the third video content includes the third view image and the sixth view image. A cell panel including a pixel array;
A barrier element adhered to the cell panel to separate light paths of light from pixels of the pixel array for each viewing angle;
A polarization separation element disposed above or below the barrier element; And
Including polarized glasses,
The polarization separation element,
A first retarder overlapping an odd-numbered slit between the barriers of the barrier element; And
Including a second retarder overlapping the superior slit between the barriers of the barrier element,
Light passing through the first retarder is light of first polarization,
Light passing through the second retarder is light of second polarization,
The polarizing glasses,
And a left-eye filter passing through the first polarized light and a right eye filter passing through the second polarized light,
The pixel array,
A left-eye image pixel group positioned on an optical path passing through an odd-numbered slit of the barrier element; And
And a right-eye image pixel group positioned on an optical path passing through the even-th slit of the barrier element,
The left eye image pixel group,
First to Nth (N is a positive integer greater than or equal to 2) pixels that display images of different video contents viewed through the left eye of the viewer through the left eye filter of the polarizing glasses,
The right eye image pixel group,
Including N+1 to 2N-th pixels displaying images of different video contents viewed through the right eye filter of the polarizing glasses,
The M-th (M is an integer of 1 or more and N or less) of the left-eye image pixel group displays an M-th view image,
The M+Nth pixel of the right eye image pixel group displays an M+Nth view image,
The stereoscopic image of the M-th video content,
And the M-th view image and the M+N-th view image. delete delete The method of claim 10,
Each of the video contents includes three-dimensional image contents including a left-eye image and a right-eye image,
The pixels of the left eye image pixel group,
A first pixel displaying a first view image;
A second pixel displaying a second view image; And
Including a third pixel displaying a third view image,
The pixels of the right eye image pixel group,
A fourth pixel displaying a fourth view image;
A fifth pixel displaying a fifth view image; And
And a sixth pixel displaying a sixth view image,
The stereoscopic image of the first video content includes the first view image and the fourth view image,
The stereoscopic image of the second video content includes the second view image and the fifth view image,
The stereoscopic image of the third video content includes the third view image and the sixth view image. Forming a cell panel including a pixel array;
Forming a slit black matrix on a lenticular lens film having lens surfaces separating light paths of light from pixels of the pixel array for each viewing angle; And
Including; disposing the lenticular lens film on the cell film,
The lenticular lens includes a first surface on which lens surfaces are formed, and a flat second surface on the opposite side thereof,
Forming a slit black matrix on the lenticular lens film,
Applying a photosensitive resin layer having adhesiveness on the second surface;
Irradiating the photosensitive resin layer with ultraviolet rays through the first surface to expose the photosensitive resin layer to the rear surface;
Adhering a transfer sheet to which a black coloring layer is applied to the photosensitive resin layer; And
Peeling the transfer sheet from the photosensitive resin layer to form the slit black matrix with a black color layer pattern partially remaining on the second surface,
The pixel array,
Including N (N is a positive integer of 2 or more) pixels disposed within one lens pitch of the lenticular lens film,
The N pixels display images of different video contents,
The light propagating through the N pixels is divided into different viewing angles according to the incident angle of the lens surface,
The N pixels,
Including first to Nth pixels,
Mth (M is an arbitrary integer of 1 or more and N or less) pixel displays an image of the Mth video content, and light that has passed through the Mth pixel is propagated to the Mth viewing angle and is shown to the Mth viewer. A method of manufacturing a multi-view display device. The method of claim 14,
The step of exposing the photosensitive resin layer to the rear surface,
And a step of partially exposing the photosensitive resin layer by condensing ultraviolet rays on the photosensitive resin layer by the lens surface. The method of claim 14,
The lens surfaces formed on the first surface are repeating mountains and valleys,
The slit black matrix is formed on the second surface at a position facing the valley. The method according to any one of claims 14 to 16,
A multi-view display device manufactured by the above manufacturing method.

Images