KR102271171B1 - Glass-free multiview autostereoscopic display device and method for image processing thereof - Google Patents

Abstract

An autostereoscopic multi-view 3D display apparatus includes a display panel including a plurality of sub-pixels, a plurality of 3D panels arranged in a horizontal direction with respect to the display panel and inclined at a set inclination angle with respect to a vertical direction of the display panel, and Determine the number of displayable viewpoints based on the inclination angle and the width of one 3D panel, select the number of viewpoints that reduce horizontal resolution and vertical resolution by an equal ratio among the plurality of viewpoints, and select the number of viewpoints of the selected number of viewpoints and a controller for expressing each pixel in a triangular shape in a multi-view pixel group including the smallest pixel representing an image.

Description

Glasses-free multi-view 3D display device and image processing method thereof {GLASS-FREE MULTIVIEW AUTOSTEREOSCOPIC DISPLAY DEVICE AND METHOD FOR IMAGE PROCESSING THEREOF}

The present invention relates to an autostereoscopic multi-viewpoint 3D display apparatus and an image processing method thereof, and in particular, a high-quality stereoscopic image while reducing horizontal and vertical resolution for an image at each viewpoint at an equal ratio using an inclined display panel. It relates to a glasses-free multi-viewpoint 3D display apparatus and an image processing method thereof that can be provided.

The glasses-free multi-view 3D display method is a spatial division method, which is divided into the Parallax Barrier method, which gives directionality by light transmission, and the Lenticular Lens method, which gives directionality by refraction of light. can be shared

When a display panel based on a lenticular lens or a parallax barrier is in a vertical shape in the glasses-free 3D display device, only the horizontal resolution of the image at each viewpoint is reduced, so that the quality of the reproduced stereoscopic image is deteriorated. In order to solve this problem, in the prior art, a 3D panel based on a slanted parallax barrier or lenticular lens is proposed, and a stereoscopic image reproduced by reducing the horizontal and vertical resolutions of the images at each viewpoint at an equal ratio. improved the picture quality of However, as shown in FIG. 1 , this technique also has a disadvantage in that the pixels of the multi-view image have a diagonal shape for a specific viewpoint, so that a diagonal pattern is generated in the reproduced stereoscopic image.

The problem to be solved by the present invention is an autostereoscopic multi-viewpoint 3D display device capable of providing a high-quality stereoscopic image while reducing the horizontal and vertical resolution of the image at each viewpoint at an equal ratio using an inclined 3D panel, and its To provide a video method.

According to one embodiment of the present invention, there is provided an autostereoscopic multi-view 3D display apparatus. An autostereoscopic multi-view 3D display apparatus includes a display panel including a plurality of sub-pixels, a plurality of 3D panels arranged in a horizontal direction with respect to the display panel and inclined at a set inclination angle with respect to a vertical direction of the display panel, and Determine the number of displayable viewpoints based on the inclination angle and the width of one 3D panel, select the number of viewpoints that reduce horizontal resolution and vertical resolution by an equal ratio among the plurality of viewpoints, and select the number of viewpoints of the selected number of viewpoints and a controller for expressing each pixel in a triangular shape in a multi-view pixel group including the smallest pixel representing an image.

According to an embodiment of the present invention, it is possible to prevent the occurrence of a specific pattern by allowing the pixels of the multi-viewpoint image to be expressed in a triangular shape. In addition, by reducing the horizontal resolution and the vertical resolution at an equal ratio, the light of the viewpoint image projected to the pupil is uniformly distributed, so that a high-quality stereoscopic image can be reproduced.

1 is a diagram illustrating an example in which a conventional multi-view image is mapped to a sub-pixel of a display panel.
2 is a diagram schematically illustrating an autostereoscopic multi-view 3D display apparatus according to an embodiment of the present invention.
3 is a flowchart illustrating a method of determining the number of viewpoints in the control unit shown in FIG. 2 .
4, 5A, 5B, 6, 7A, and 7B are views each showing a type of a lenticular lens according to an embodiment of the present invention.
8 is a diagram illustrating an example in which an image of 9 views is mapped to sub-pixels in a type 1 display panel according to an embodiment of the present invention.
9 is a diagram illustrating an example in which an image of 13 views is mapped to sub-pixels in a type 2-1 display panel according to an embodiment of the present invention.
10 is a diagram illustrating an example in which an image of 14 views is mapped to sub-pixels in a type 2-2 display panel according to an embodiment of the present invention.
11 is a diagram illustrating an example in which an image of 22 views is mapped to sub-pixels in a type 4-1 display panel according to an embodiment of the present invention.
12 is a diagram illustrating an example in which an image of 23 views is mapped to sub-pixels in a type 4-2 display panel according to an embodiment of the present invention.
13 is a diagram illustrating an example in which an image of 30 views is mapped to sub-pixels in a type 3 display panel according to an embodiment of the present invention.
14 is a diagram illustrating an example in which an image of 42 views is mapped to sub-pixels in a type 3 display panel according to an embodiment of the present invention.

Hereinafter, with reference to the accompanying drawings, embodiments of the present invention will be described in detail so that those of ordinary skill in the art to which the present invention pertains can easily implement them. However, the present invention may be embodied in various different forms and is not limited to the embodiments described herein. And in order to clearly explain the present invention in the drawings, parts irrelevant to the description are omitted, and similar reference numerals are attached to similar parts throughout the specification.

Throughout the specification and claims, when a part "includes" a certain element, it means that other elements may be further included, rather than excluding other elements, unless otherwise stated.

Now, an autostereoscopic multi-view 3D display apparatus and an image processing method thereof according to an embodiment of the present invention will be described in detail with reference to the drawings.

2 is a diagram schematically illustrating an autostereoscopic multi-view 3D display according to an embodiment of the present invention.

Referring to FIG. 2 , the autostereoscopic multi-view 3D display apparatus 100 includes a display panel 110 , a lenticular lens array 120 , and a controller 130 .

The display panel 110 includes a plurality of pixels arranged in a plurality of rows and a plurality of columns. Each pixel includes a plurality of sub-pixels 112 . The sub-pixel displays a predetermined color according to the determined pixel value. The sub-pixel displays, for example, any one of red (R), green (G), and blue (B) colors. A pixel represents a minimum image display unit in which at least one sub-pixel 112 is combined to express complete color information. For example, three sub-pixels 112 displaying red (R), green (G), and blue (B) colors may be expressed as one pixel.

A lenticular lens array 120 is positioned on the display panel 110 .

The lenticular lens array 120 includes a plurality of lenticular lenses 122 . 1 illustrates a lenticular lens array 120 as a 3D panel. The plurality of lenticular lenses 122 have a semi-cylindrical shape and are arranged in one direction. The lenticular lens 122 is inclined at a predetermined inclination angle θ with respect to the vertical axis y direction of the plurality of sub-pixels 112 . The lenticular lens array 120 is to separate the incident beam into a plurality of viewpoints and emit it. The beams passing through the lenticular lens array 120 are separated from each other at different viewpoints at a viewing distance. The lenticular lens 122 has a constant curvature and width (pitch) in order to separate the image formed in each subpixel 112 into each viewpoint. In addition, each lenticular lens 122 may be disposed to correspond to two or more sub-pixels among the sub-pixels 112 arranged along the horizontal axis (x) direction, and the width of the lenticular lens 122 varies according to the number of multi-viewpoints. It is set to have a certain relationship with the horizontal width (pitch) of the sub-pixel 112 . Accordingly, the image displayed on the display panel 110 is provided separately for each viewpoint as the progress path is changed.

The controller 130 maps one viewpoint image to correspond to one sub-pixel. The controller 130 determines the number of viewpoints to be reproduced based on the width and the inclination angle θ of the lenticular lens 122 , and maps the viewpoint images of the determined number of viewpoints to each sub-pixel. In particular, when each viewpoint image is mapped to each sub-pixel among the number of viewpoints that can be reproduced based on the width and the inclination angle θ of the lenticular lens 122, the controller 130 determines that each viewpoint image has a diagonal shape as shown in FIG. 1 . It is possible to determine the number of viewpoints that result in a triangular shape other than the

The controller 130 forms a multi-view pixel group including pixels displaying a viewpoint image of the determined number of viewpoints, and transmits a signal of a viewpoint image mapped to each sub-pixel 112 of the multi-view pixel group. The multi-view pixel group includes the smallest number of pixels representing the view image of the determined number of views. For example, when sub-pixels respectively displaying red (R), green (G), and blue (B) constitute one pixel, a multi-view pixel group displaying a 9-viewpoint image may include 9 pixels. can The function of the controller 130 may be performed by a processor implemented by a central processing unit (CPU) or other chipsets, microprocessors, or the like.

3 is a flowchart illustrating a method of determining the number of viewpoints in the control unit shown in FIG. 2 .

Referring to FIG. 3 , when the controller 130 receives the width and the inclination angle θ of the lenticular lens 122 ( S310 ), the lenticular lens 122 and the lenticular lens 122 based on the width and the inclination angle θ of the lenticular lens 122 . The number of pixel blocks having different overlapping sub-pixels is counted. A pixel block represents a set of sub-pixels corresponding to the width of one lenticular lens 122 .

The controller 130 may determine the number of viewpoints as in Equation 1 based on the number of different pixel blocks where the lenticular lens 122 and the sub-pixels overlap and the width of the lenticular lens 122 ( S330 ).

In particular, the controller 130 may determine the number of viewpoints based on Equation 1, but may determine the number of viewpoints in which the horizontal resolution and the vertical resolution are reduced at an equal rate.

According to an embodiment of the present invention, since one viewpoint image is mapped to one sub-pixel, when the lenticular lens 122 and the sub-pixel have the same overlapping shape, the same viewpoint image is mapped. Therefore, the maximum number of viewpoints that can be mapped according to the width of the lenticular lens 122 and the inclination angle θ is the number of different cases where the lenticular lens 122 and the subpixel overlap as shown in Equation 1, and the width of the lenticular lens 122 is It is equal to the product of the corresponding number of sub-pixels.

Then, a method of determining the number of viewpoints in the control unit 130 will be described in detail with reference to FIGS. 4, 5A, 5B, 6, 7A, and 7B.

4, 5A, 5B, 6, 7A, and 7B are views showing types of lenticular lenses according to an embodiment of the present invention, respectively, in red (R), green (G) and blue (B) colors When the arrangement is a vertical stripe, and when the red (R), green (G), and blue (B) sub-pixels are combined to form one pixel, the display panel according to the inclination angle θ is formed in a structure in which one pixel is square. shown.

When H _sp is the horizontal width of the sub-pixel and V _sp is the vertical width of the sub-pixel, FIG. 4 is a ^{type 1 display panel in which the inclination angle θ is tan −1} (H _sp /2V _sp ), FIGS. 5A and 5B . is a display panel of type 2-1 and type 2-2, respectively, in which the inclination angle θ is tan ^-1 (H _sp /3V _{sp ).} 6 is a type 3 display panel in which the inclination angle θ is tan ^-1 (H _sp /4V _sp ), and FIGS. 7A and 7B are the types in which the inclination angle θ is tan ^-1 (H _sp /5V _sp ), respectively. 4-1 and type 4-2 display panels.

4 , 5A , 5B , 6 , 7A and 7B , X represents the width of the lenticular lens 122 .

Referring to FIG. 4 , when the number of sub-pixels corresponding to the width X of the lenticular lens 122 is 3/2+3n (n is an integer greater than or equal to 0), 3/2+3n sub-pixels are one pixel block. to form That is, 3/2+3n sub-pixels are combined to form a plurality of pixel blocks including the pixel blocks B1 and B2. 4 illustrates a case where n is 1. In this case, 27 sub-pixels bounded by a thick line may be one multi-view pixel group.

Looking at the pixel blocks formed in this way, the number of pixel blocks having different overlapping shapes of the lenticular lens 122 and the sub-pixels is 2, and thus the number of viewpoints N _view may be determined as in Equation (2).

Referring to FIG. 5A , when the number of sub-pixels corresponding to the width X of the lenticular lens 122 is 4/3+3n (n is an integer greater than or equal to 0), the width X of the lenticular lens 122 is The sub-pixels are combined to form a plurality of pixel blocks including the pixel blocks B1, B2, and B3. 5A illustrates a case where n is 1. In this case, 39 sub-pixels grouped by a thick line may be one multi-view pixel group.

Looking at the pixel blocks formed in this way, the number of pixel blocks having different overlapping shapes with the lenticular lens 122 and sub-pixels is 3, and the number of viewpoints (N _view ) may be determined as in Equation (3).

Meanwhile, referring to FIG. 5B , when the sub-pixel corresponding to the width X of the lenticular lens 122 is 5/3+3n (n is an integer greater than or equal to 0), the width X of the lenticular lens 122 is The corresponding sub-pixels are combined to form a plurality of pixel blocks including the pixel blocks B1, B2, and B3. 5B illustrates a case where n is 1. In this case, 42 sub-pixels grouped by a thick line may be one multi-view pixel group.

Looking at the pixel blocks formed in this way, the number of pixel blocks having different overlapping shapes of the lenticular lens 122 and the sub-pixels is 3, and the number of viewpoints (N _views ) may be determined as in Equation (4).

Also, as shown in FIG. 6 , when the sub-pixel corresponding to the width X of the lenticular lens 122 is 3/2+3n (n is an integer greater than or equal to 0), the width X of the lenticular lens 122 is A plurality of pixel blocks including the pixel blocks B1, B2, B3, and B4 are formed by combining sub-pixels corresponding to . 6 illustrates a case where n is 2. In this case, sub-pixels grouped by thick lines may be one multi-view pixel group.

Looking at the pixel blocks formed in this way, the number of pixel blocks having different overlapping shapes of the lenticular lens 122 and the sub-pixels is 4, and the number of viewpoints (N _view ) may be determined as in Equation (5).

And referring to FIG. 7A , when the number of sub-pixels corresponding to the width X of the lenticular lens 122 is 7/5+3n (n is an integer greater than or equal to 0), it corresponds to the width X of the lenticular lens 122 . A plurality of pixel blocks including the pixel blocks B1, B2, B3, B4, and B5 are formed by combining the sub-pixels. 7A illustrates a case where n is 1. In this case, sub-pixels grouped by thick lines may be one multi-view pixel group.

Looking at the pixel blocks formed in this way, the number of pixel blocks having different overlapping shapes of the lenticular lens 122 and the sub-pixels is 5, and the number of viewpoints (N _views ) may be determined as in Equation (6).

Next, referring to FIG. 7B , when the number of sub-pixels corresponding to the width X of the lenticular lens 122 is 8/5+3n (n is an integer greater than or equal to 0), it corresponds to the width X of the lenticular lens 122 . A plurality of pixel blocks including the pixel blocks B1, B2, B3, B4, and B5 are formed by combining the sub-pixels. 7B illustrates a case where n is 1. In this case, sub-pixels grouped by thick lines may be one multi-view pixel group.

Looking at the pixel blocks formed in this way, the number of pixel blocks having different overlapping shapes with the lenticular lens 122 and sub-pixels is 5, and the number of viewpoints (N _view ) may be determined as in Equation (7).

In general, in a flat panel-based multi-view display, the resolution per view decreases as the number of views increases.

In the display panel according to the exemplary embodiment of the present invention, the horizontal/vertical resolution reduction rate is determined by the multi-view pixel group. Therefore, based on the pixel size, the reduction rate of the horizontal/vertical resolution with respect to the width of the lenticular lens 122 for each type of display panel shown in FIGS. 4, 5A, 5B, 6, 7A, and 7B, respectively, is expressed by the equation It can be obtained by Equation 8 to Equation 13.

The number of viewpoints and the horizontal/vertical resolution reduction rate with respect to the width of the lenticular lens 122 for each type of each lenticular lens 122 may be represented as shown in Table 1.

Referring to Table 1, it can be seen that the product of the horizontal/vertical resolution reduction rate is equal to the number of viewpoints. And for type 1, when n=1 and the number of time points is 9, for type 2-1, when n=1 and the number of time points is 13, for type 2-2, when n=1 and the number of time points is 14, for type 3 For the case n=2 and the number of time points is 30, and for n=3 and the number of time points is 42, for type 4-1, when n=1 and the number of time points is 22, and for type 4-2, when n=1 and the number of time points is At 23, it can be seen that the horizontal resolution and the vertical resolution are reduced at an equal rate.

When the resolution reduction rate of the multi-view image is biased toward one side, the reproduction quality of the stereoscopic image is deteriorated because the light of the viewpoint image projected to the pupil is not uniformly distributed. Therefore, based on Table 1, it can be seen that 9 viewpoints, 13 viewpoints, 14 viewpoints, 22 viewpoints, 23 viewpoints, 30 viewpoints, and 42 viewpoints are appropriate to reproduce high-quality stereoscopic images for each type.

The controller 130 according to an embodiment of the present invention determines the number of viewpoints to be 9 when the display panel 110 corresponds to type 1 based on the width and the inclination angle θ of the lenticular lens 122 , and the display panel 110 . If the type 2-1 corresponds to the number of views, 13 may be determined, and if the display panel 110 corresponds to the type 2-2, the number of views may be determined to be 14. FIG. Similarly, the controller 130 determines the number of views to be 30 or 42 when the display panel 110 corresponds to type 3, and determines the number of views to be 22 when the display panel 110 corresponds to type 4-1, and displays If the panel 110 corresponds to type 4-2, the number of views may be determined to be 23.

8 is a diagram illustrating an example in which an image of 9 views is mapped to sub-pixels in a type 1 display panel according to an embodiment of the present invention.

Referring to FIG. 8 , when the number of viewpoints is determined to be 9 in the type 1 display panel, the controller 130 maps the 9 viewpoint images to each sub-pixel. When 9 viewpoint images are allocated according to the width of the lenticular lens 122 , as shown in FIG. 8 , 9 viewpoint images can be mapped to each sub-pixel, and in one multi-view pixel group, red ( R) The pixels including the sub-pixel, the green (G) sub-pixel, and the blue (B) sub-pixel have a triangular shape unlike the conventional diagonal shape, so that a high-quality stereoscopic image can be reproduced.

On the other hand, if you look at the viewpoint image mapped to each sub-pixel, it can be seen that it is repeated with a predetermined block size. Assuming that a predetermined block size is a view mapping period, the number of views for each position of each sub-pixel corresponding to the view mapping period is the same in upper, lower, left and right directions. Accordingly, the control unit 130 stores the number of views for each position of each sub-pixel corresponding to one view mapping period in a mapping table (not shown), and uses the mapping table to store the number of views in all sub-pixels of the entire display panel as shown in FIG. 8 . As illustrated, a viewpoint image may be mapped.

In general, since the left and right sides are changed when each viewpoint image passes through the lenticular lens 122, the smaller the viewpoint number for each viewpoint, the closer to the right image, and the larger the viewpoint number, the closer to the left image.

9 is a diagram illustrating an example in which an image of 13 views is mapped to sub-pixels in a type 2-1 display panel according to an embodiment of the present invention.

Referring to FIG. 9 , when the number of viewpoints is determined to be 13 in the type 2-1 display panel, the controller 130 maps the 13 viewpoint images to each sub-pixel. If 13 viewpoint images are allocated according to the width of the lenticular lens 122 , as shown in FIG. 9 , 13 viewpoint images can be mapped to each sub-pixel, and in one multi-view pixel group, red ( R) A pixel including a sub-pixel, a green (G) sub-pixel, and a blue (B) sub-pixel has a triangular shape.

Similarly, the controller 130 stores the number of viewpoints for each position of each sub-pixel corresponding to one viewpoint mapping period in the mapping table, and uses the mapping table to store all the sub-pixels of the entire display panel as shown in FIG. 9 . A viewpoint image can be mapped.

10 is a diagram illustrating an example in which an image of 14 views is mapped to sub-pixels in a type 2-2 display panel according to an embodiment of the present invention.

Referring to FIG. 10 , when the number of viewpoints is determined to be 14 in the type 2-2 display panel, the controller 130 maps the 14 viewpoint images to each sub-pixel. If 14 viewpoint images are allocated according to the width of the lenticular lens 122 , as shown in FIG. 10 , 14 viewpoint images can be mapped to each sub-pixel, and in one multi-view pixel group, red ( R) A pixel including a sub-pixel, a green (G) sub-pixel, and a blue (B) sub-pixel has a triangular shape.

In addition, the controller 130 stores the number of viewpoints for each position of each sub-pixel corresponding to one viewpoint mapping period in the mapping table, and uses the mapping table to assign viewpoints to all sub-pixels of the entire display panel as shown in FIG. 10 . Images can be mapped.

11 is a diagram illustrating an example in which an image of 22 viewpoints is mapped to sub-pixels in a type 4-1 display panel according to an embodiment of the present invention, and FIG. 12 is a type 4-2 type display panel according to an embodiment of the present invention. It is a diagram illustrating an example in which an image of 23 viewpoints is mapped to sub-pixels on a display panel.

Referring to FIG. 11 , when the number of viewpoints is determined to be 22 in the type 4-1 display panel, the controller 130 maps the 22 viewpoint images to each sub-pixel. If 22 viewpoint images are allocated according to the width of the lenticular lens 122, 22 viewpoint images can be mapped to each sub-pixel as shown in FIG. 11, and in one multi-view pixel group, red ( R) A pixel including a sub-pixel, a green (G) sub-pixel, and a blue (B) sub-pixel has a triangular shape.

In addition, the controller 130 stores the number of viewpoints for each position of each sub-pixel corresponding to one viewpoint mapping period in the mapping table, and uses the mapping table to assign viewpoints to all sub-pixels of the entire display panel as shown in FIG. 11 . Images can be mapped.

In the type 4-2 display panel, the controller 130 maps 23 viewpoint images to each sub-pixel as shown in FIG. 12 . In this case, in one multi-view pixel group, pixels including a red (R) sub-pixel, a green (G) sub-pixel, and a blue (B) sub-pixel at the same viewpoint have a triangular shape.

In addition, the controller 130 stores the number of viewpoints for each position of each sub-pixel corresponding to one viewpoint mapping period in the mapping table, and uses the mapping table to assign viewpoints to all sub-pixels of the entire display panel as shown in FIG. 12 . Images can be mapped.

13 is a diagram illustrating an example in which an image of 30 viewpoints is mapped to sub-pixels in a type 3 display panel according to an embodiment of the present invention, and FIG. 14 is a diagram illustrating 42 views in a type 3 display panel according to an embodiment of the present invention. It is a diagram illustrating an example in which an image of a viewpoint is mapped to a sub-pixel.

When the number of viewpoints is determined to be 30 in the type 3 display panel, the controller 130 maps the 30 viewpoint images to each sub-pixel as shown in FIG. 13 . In this case, in one multi-view pixel group, pixels including a red (R) sub-pixel, a green (G) sub-pixel, and a blue (B) sub-pixel at the same viewpoint have a triangular shape.

In addition, the controller 130 stores the number of viewpoints for each position of each sub-pixel corresponding to one viewpoint mapping period in the mapping table, and uses the mapping table to assign viewpoints to all sub-pixels of the entire display panel as shown in FIG. 13 . Images can be mapped.

When the number of viewpoints is determined to be 42 in the type 3 display panel, the controller 130 maps the 42 viewpoint images to each sub-pixel as shown in FIG. 14 . In this case, in one multi-view pixel group, pixels including a red (R) sub-pixel, a green (G) sub-pixel, and a blue (B) sub-pixel at the same viewpoint have a triangular shape.

In addition, the controller 130 stores the number of viewpoints for each position of each sub-pixel corresponding to one viewpoint mapping period in the mapping table, and uses the mapping table to assign viewpoints to all sub-pixels of the entire display panel as shown in FIG. 14 . Images can be mapped.

Although the lenticular lens is illustrated as the 3D panel in the above embodiment, a parallax barrier may be used as the 3D panel. The image processing method described above can also be applied to the parallax barrier-based glasses-free multi-view 3D display.

In addition, the inclination angle (θ) is tan ^-1 (H _sp /2V _sp ), tan ^-1 (H _sp /3V _sp ), tan ^-1 (H _sp /4V _sp ) and tan ^-1 (H _sp /5V _sp ) and Although the image processing method has been described based on the lenticular lens 122 gradually inclining one row at a time, it can be extended and applied even when the inclination angle θ is symmetrically inclined with respect to the vertical axis.

The embodiment of the present invention is not implemented only through the apparatus and/or method described above, and a program for realizing a function corresponding to the configuration of the embodiment of the present invention or a recording medium in which the program is recorded may be implemented, Such an implementation can be easily implemented by an expert in the technical field to which the present invention pertains from the description of the above-described embodiments.

Although the embodiment of the present invention has been described in detail above, the scope of the present invention is not limited thereto, and various modifications and improvements by those skilled in the art using the basic concept of the present invention as defined in the following claims are also provided. is within the scope of the right.

Claims (10)

A glasses-free multi-view 3D display device comprising:
A display panel including a plurality of sub-pixels, wherein at least one sub-pixel forms one pixel;
a plurality of 3D panels arranged in a horizontal direction with respect to the display panel and inclined at a set inclination angle with respect to a vertical direction of the display panel; and
The number of pixel blocks having different overlapping shapes of the one 3D panel and the sub-pixels corresponding to the 3D panel is calculated based on the inclination angle and the width of one 3D panel, and a plurality of displayable pixel blocks are calculated based on the number of the pixel blocks. A control unit that determines the number of viewpoints, selects a number of viewpoints that minimizes a difference between a decrease rate of a horizontal resolution and a decrease rate of a vertical resolution from among the plurality of viewpoints, and maps viewpoint images of the selected number of viewpoints to the plurality of sub-pixels
includes,
and the pixel block represents a set of sub-pixels corresponding to a width of the one 3D panel. In claim 1,
The control unit is configured to map each viewpoint image to the plurality of sub-pixels so that pixels expressing the same viewpoint image have a triangular shape within the multi-view pixel group including the smallest pixel expressing the viewpoint image of the selected number of viewpoints. Glasses multi-view 3D display device. delete In claim 1,
The number of viewpoints is determined from a product of the number of pixel blocks and the number of sub-pixels corresponding to a width of the 3D panel. In claim 1,
The control unit stores the viewpoint images mapped for each sub-pixel position corresponding to one viewpoint mapping period in a mapping table, and maps the viewpoint images to all sub-pixels of the display panel using the mapping table. Dot 3D display device. In claim 2,
The autostereoscopic multi-viewpoint 3D display apparatus, wherein the reduction rate of the horizontal resolution and the reduction rate of the vertical resolution are determined by the multi-view pixel group. Process a multi-view image in an autostereoscopic multi-view 3D display device including a plurality of pixels and in which at least one sub-pixel is inclined at a set inclination angle with respect to a vertical direction of a display panel in which at least one sub-pixel forms one pixel As a method,
calculating the number of pixel blocks in which a pixel block representing a set of sub-pixels corresponding to a width of one 3D panel and a 3D panel corresponding to the pixel block overlap each other on the display panel;
determining the number of displayable views based on the number of pixel blocks and the width of the 3D panel;
selecting the number of viewpoints that minimizes the difference between the decrease rate of the horizontal resolution and the decrease rate of the vertical resolution from among the at least one number of viewpoints; and
Mapping the view image of the selected number of views to the plurality of sub-pixels
An image processing method comprising a. In claim 7,
In the mapping step, each view image is assigned to the plurality of sub-pixels so that pixels expressing the same view image have a triangular shape within the multi-view pixel group including the smallest pixel expressing the view image of the selected number of views. An image processing method comprising the step of: In claim 8,
Allocating each view image to the plurality of sub-pixels to have the triangular shape includes:
mapping the view image of the selected number of views to each sub-pixel corresponding to one view mapping period to have the triangular shape;
Storing a viewpoint image for each position of each sub-pixel corresponding to the one viewpoint mapping period in a mapping table; and
and mapping a viewpoint image to all sub-pixels of the display panel using the mapping table. In claim 7,
The number of views is determined from a product of the number of pixel blocks and the number of sub-pixels corresponding to a width of the 3D panel.

Images