Multi-viewing zone stereoscopic display device

Abstract

The multi-viewing zone stereo display device is composed of a 2D display panel and a slit grating; the 2D display panel is placed behind the slit grating; the slit grating can project pixels on the 2D display panel to various spatial positions; pixels with multiple opening height positions are arranged on the 2D display panel, and pixels with the same opening height position belong to the same viewing zone; the slit grating is provided with through holes with multiple opening height positions, which respectively correspond to the pixels with the multiple opening height positions, and the pixels can be projected to the vertical viewing area through the corresponding through holes; in the horizontal direction, the pixels can be projected to the corresponding viewing zone position through the through holes corresponding to the height position; when the human eye is at different viewpoint positions in the viewing zone, the corresponding parallax images can be seen, thereby generating stereoscopic vision.

Description

Technical Field

[0001] The present invention relates to display technology, and more particularly, to stereoscopic display technology. Background Art

[0002] Stereoscopic display technology is a display technology that can achieve true reproduction of stereoscopic scenes, which can provide different parallax images for human eyes, so that people can have stereoscopic vision. The present invention proposes a multi-viewing zone stereoscopic display device, which can provide multiple viewing zones, and each viewing zone position is independent of each other. Summary of the invention

[0003] The present invention provides a multi-viewing zone stereoscopic display device. Figure 1 The structure diagram of the multi-viewing zone stereoscopic display device is shown in FIG. 1 , wherein x represents the horizontal direction in space, y represents the vertical direction in space, and z represents the axial direction perpendicular to the xy plane. The multi-viewing zone stereoscopic display device is composed of a 2D display panel and a slit grating. The 2D display panel is placed behind the slit grating. The slit grating can project pixels on the 2D display panel to various spatial positions.

[0004] For further information, please refer to Figure 2 , pixels with various opening height positions are arranged on the 2D display panel, and pixels with the same opening height position belong to the same viewing area.

[0005] For further information, please refer to Figure 3 The slit grating is provided with through holes at various opening height positions, which correspond to pixels at various opening height positions. Figure 1 , the pixels can be projected into the vertical viewing area through the corresponding through holes.

[0006] For further information, please refer to Figure 4 In the horizontal direction, the pixel can be projected to the corresponding viewing area position through the through hole corresponding to its height position. A number of pixels adjacent to each other in the horizontal direction and with the same opening height position on the 2D display panel are defined as a pixel unit. Each column of pixels in the pixel unit comes from a different parallax image. Different columns of pixels can be projected to different viewpoints in the same viewing area. When the human eye is at different viewpoints in the viewing area, it can see the corresponding parallax images, thereby generating stereoscopic vision.

[0007] For further information, please refer to Figure 2 and Figure 4 Black areas can be inserted between different types of pixel units on the 2D display panel, so that the spacing between the same type of pixel units on the 2D display panel is greater than the sum of the widths of the remaining pixel units, so that there is enough gap between the viewing areas formed by the corresponding through holes of the same type of pixel units, and the gap is sufficient to accommodate the remaining viewing areas.

[0008] For details, please refer to Figure 1 The vertical viewing area is a polygon with two inflection points, upper and lower. The positions of the two inflection points correspond to the recommended minimum viewing distance. D 2. When the viewing position is less than the recommended minimum viewing distance D 2, the vertical viewing range is drastically reduced. Assume that the pixel opening height on the 2D display panel is H 1. The vertical pitch of the through holes on the slit grating is P 1. The height of the through hole is H 2. The distance from the 2D display panel to the slit grating is D 1, the recommended minimum viewing distance D 2 for ; Recommended minimum viewing distance D Vertical viewing range on 2 H 3 for .

[0009] For details, please refer to Figure 4 , the pixel unit can be projected to the corresponding viewing area through the corresponding through hole. Suppose the horizontal pitch of the same type of pixel unit is P 2, the corresponding horizontal pitch of the through hole is P 3, then these pixel units are projected through the corresponding through holes on the slit grating to form the optimal viewing distance of the viewing area D 3 for .

[0010] For details, please refer to Figure 4 , the horizontal displacement of any pixel unit on the 2D display panel relative to the axis is S 1, and the corresponding horizontal displacement of the through hole relative to the axis is S 2, then the displacement of the visual area formed by the projection through the through hole relative to the axis S 3 for .

[0011] For details, please refer to Figure 4 , the width of any pixel unit on the 2D display panel is W 1, then the width of the viewing area formed by projection through the through hole W 2 for .

[0012] In summary, the present invention can form multiple viewing zones in space, and parameters can be set separately for each viewing zone. P 3. S 2 and W 1 so that the positions of the viewports are independent of each other and do not affect each other. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0014] Figure 1 It is a structural schematic diagram of the present invention.

[0015] Figure 2 Schematic diagram of a pixel of the present invention.

[0016] Figure 3 Schematic diagram of the grating slit of the present invention.

[0017] Figure 4 It is a schematic diagram of the horizontal light splitting of the present invention.

[0018] Icon: 100-2D display panel; 200-slit grating; 110-first viewing zone pixel; 120-second viewing zone pixel 130-third viewing zone pixel; 210-first viewing zone grating slit hole; 220-second viewing zone grating slit hole; 230-third viewing zone grating slit hole.

[0019] It should be understood that the above drawings are only schematic and are not drawn to scale. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings here can be arranged and designed in various different configurations.

[0021] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the invention claimed for protection, but merely represents selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, further definition and explanation thereof is not required in subsequent drawings.

[0023] In the description of the embodiments of the present invention, it should be noted that the terms “first”, “second”, etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance. Example

[0024] Figure 1 This is a schematic diagram of the structure of a multi-viewing zone stereoscopic display device provided in this embodiment, wherein x represents the horizontal direction in space, y represents the vertical direction in space, and z represents the axial direction perpendicular to the xy plane. The multi-viewing zone stereoscopic display device is composed of a 2D display panel 100 and a slit grating 200. The 2D display panel 100 is placed behind the slit grating 200. The slit grating 200 can project pixels on the 2D display panel 100 to various spatial positions.

[0025] For further information, please refer to Figure 2 , pixels with three opening height positions are arranged on the 2D display panel 100, wherein the opening position of the first viewing zone pixel 110 is at the upper part; the opening position of the second viewing zone pixel 120 is at the middle part; and the opening position of the third pixel 130 is at the lower part.

[0026] For further information, please refer to Figure 3 The slit grating is provided with through holes of three opening height positions. The opening position of the first viewing zone grating slit through hole 210 is higher, which corresponds to the first viewing zone pixel 110; the opening position of the second viewing zone grating slit through hole 220 is in the middle, which corresponds to the second viewing zone pixel 120; the opening position of the third viewing zone grating slit through hole 230 is lower, which corresponds to the third viewing zone pixel 130. Therefore, please refer to Figure 1 , the first to third viewing zone pixels 110 - 130 can be projected into the vertical viewing area through the corresponding through holes 210 - 230 .

[0027] For further information, please refer to Figure 4 In the horizontal direction, the first to third viewing zone pixels 110-130 can be projected to the corresponding viewing zone positions by the corresponding first to third viewing zone grating slit holes 210-230. Four horizontally adjacent pixels with the same opening height position on the 2D display panel are defined as a pixel unit. Each column of pixels in the pixel unit comes from a different parallax image. Different columns of pixels can be projected to different viewpoint positions in the same viewing zone. When the human eye is at different viewpoint positions in the viewing zone, the corresponding parallax image can be seen, thereby generating stereoscopic vision.

[0028] For further information, please refer to Figure 4 Black areas are inserted between different types of pixel units on the 2D display panel, so that the spacing between the same type of pixel units on the 2D display panel is greater than the sum of the widths of the remaining pixel units, so that there is sufficient gap between the viewing areas formed by the corresponding through holes of the pixel units, and the gap is sufficient to accommodate the remaining viewing areas.

[0029] For details, please refer to Figure 1 The vertical viewing area is a polygon with two inflection points, upper and lower. The positions of the two inflection points correspond to the recommended minimum viewing distance. D 2. When the viewing position is less than the recommended minimum viewing distance D 2, the vertical viewing range is sharply reduced. The pixel opening height on the 2D display panel 100 H 1 is 1 mm, the vertical pitch of the through holes on the slit grating 200 P 1 is 0.99 mm, the height of the through hole H 2 is 0.1 mm, the distance between the 2D display panel 100 and the slit grating 200 D 1 is 5 mm, the recommended minimum viewing distance D 2 is 495 mm, which satisfies ; Recommended minimum viewing distance D Vertical viewing range on 2 H 3 is 89 mm, which satisfies .

[0030] For details, please refer to Figure 4 , the pixel unit can be projected to the corresponding viewing area through the corresponding through hole. Taking the first viewing area as an example, the horizontal pitch of the pixel unit composed of the first viewing area pixel 110 is P 2 is 2.4 mm, and the horizontal pitch of the corresponding through hole 210 is P 3 is 2.378 mm, then the optimal viewing distance of the first viewing area formed by these pixel units after being projected through the through hole 210 on the slit grating 200 is D 3 is 550 mm, which satisfies .

[0031] For details, please refer to Figure 4 Taking the first viewing zone as an example, the horizontal displacement of the pixel unit closest to the axis formed by the pixels in the first viewing zone on the 2D display panel relative to the axis is S 1 is 0.8 mm, and the corresponding horizontal displacement of the through hole 210 relative to the axis S 2 is 1.6 mm, then the displacement of the visual area formed by the projection through the through hole relative to the axis S 3 is 89.6 mm, which satisfies .

[0032] For details, please refer to Figure 4 Taking the first viewing zone as an example, the width of the pixel unit composed of pixels in the first viewing zone on the 2D display panel is W 1 is 0.8 mm, then the width of the viewing area formed by projection through the through hole is W 2 is 88mm, which satisfies .

[0033] In summary, the present invention can form multiple viewing zones in space, and parameters can be set separately for each viewing zone. P 3. S 2 and W 1 so that the positions of the viewports are independent of each other and do not affect each other.

Claims

1. A multi-viewing zone stereoscopic display device, characterized in that: The multi-viewing zone stereoscopic display device is composed of a 2D display panel and a slit grating; the 2D display panel is placed behind the slit grating; The slit grating can project pixels on the 2D display panel to various spatial positions; pixels with multiple opening height positions are arranged on the 2D display panel, and pixels with the same opening height position belong to the same viewing area; the slit grating is provided with through holes with multiple opening height positions, which correspond to the pixels with the multiple opening height positions respectively, and the pixels can be projected to the vertical viewing area by the corresponding through holes; in the horizontal direction, the pixels can be projected to the corresponding viewing area position by the through holes corresponding to the height positions; a number of pixels adjacent in the horizontal direction and with the same opening height position on the 2D display panel are defined as a pixel unit, each column of pixels in the pixel unit comes from a different parallax image, and different columns of pixels can be projected to different viewpoint positions in the same viewing area. When the human eye is at different viewpoint positions in the viewing area, the corresponding parallax image can be seen, thereby generating stereoscopic vision; black areas can be inserted between different types of pixel units on the 2D display panel, so that the spacing between the same type of pixel units on the 2D display panel is greater than the sum of the widths of the remaining pixel units, so that there is a sufficient gap between the viewing areas formed by the corresponding through holes after the pixel units of this type are projected, and the gap is sufficient to accommodate the remaining viewing areas.

2. A multi-viewing zone stereoscopic display device as claimed in claim 1, characterized in that: The vertical viewing area is a polygon with two inflection points, upper and lower. The positions of the two inflection points correspond to the recommended minimum viewing distance. D 2. Assume that the pixel opening height on the 2D display panel is H 1. The vertical pitch of the through holes on the slit grating is P 1. The height of the through hole is H 2. The distance from the 2D display panel to the slit grating is D 1, the recommended minimum viewing distance D 2 for ; Recommended minimum viewing distance D Vertical viewing range on 2 H 3 for .

3. A multi-viewing zone stereoscopic display device as claimed in claim 1, characterized in that: Assume that the horizontal pitch of the same type of pixel units is P 2, the corresponding horizontal pitch of the through hole is P 3, then these pixel units are projected through the corresponding through holes on the slit grating to form the optimal viewing distance of the viewing area D 3 for .

4. A multi-viewing zone stereoscopic display device as claimed in claim 1, characterized in that: The horizontal displacement of any pixel unit on the 2D display panel relative to the axis is S 1, and the corresponding horizontal displacement of the through hole relative to the axis is S 2, then the displacement of the visual area formed by the projection through the through hole relative to the axis S 3 for .

5. The multi-viewing zone stereoscopic display device according to claim 1, characterized in that: The width of any pixel unit on a 2D display panel is W 1, then the width of the viewing area formed by projection through the through hole W 2 for .

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