An enhanced stereoscopic display device based on visual zone superposition

Abstract

In order to solve the problem that in the traditional mode, the stereoscopic display has only one image display surface and its stereoscopic effect is limited, the present invention proposes an enhanced stereoscopic display device based on visual zone superposition. The enhanced stereoscopic display device based on visual zone superposition is composed of a 2D display, a first grating, a second grating and a reflective surface. The 2D display is combined with the first grating for stereoscopic display; the 2D display is combined with the second grating to form a direct visual zone and a reflective visual zone; the reflective surface reflects the light of the reflective visual zone; the light of the reflective visual zone overlaps with the direct visual zone after being reflected by the reflective surface. In the visual zone overlapping area, the viewer can directly see the content of the direct visual zone, and can also see the content of the reflective visual zone through the reflective surface, so the present invention can widen the visible range; secondly, because the 2D displays viewed directly and viewed through the reflective surface are not coplanar, it can enhance the stereoscopic perception through the depth suggestion mechanism of linear perspective.

Description

Technical Field

[0001] The present invention belongs to the technical field of stereoscopic display, and more specifically, to an enhanced stereoscopic display device based on visual zone superposition. Background Art

[0002] The stereoscopic display device is formed by coupling a 2D display and a spectroscopic element. On the 2D display, pixels from different parallax images are arranged alternately in columns and projected to corresponding viewpoints by the spectroscopic element. When the human eye is at different viewpoints, the corresponding parallax images can be seen, thereby generating stereoscopic vision. However, in the traditional mode, the stereoscopic display has only one image display surface, and its stereoscopic effect is limited. In order to solve this problem and improve the stereoscopic display effect, the present invention proposes an enhanced stereoscopic display device based on visual zone superposition. Summary of the invention

[0003] In order to solve the problem that in the traditional mode, a stereoscopic display has only one image display surface and its stereoscopic effect is limited, the present invention proposes an enhanced stereoscopic display device based on visual zone superposition.

[0004] The enhanced stereoscopic display device based on visual zone superposition is composed of a 2D display, a first grating, a second grating and a reflective surface.

[0005] The 2D display, the first grating and the second grating are parallel and arranged in sequence.

[0006] The reflective surface and the 2D display are placed at an angle of 30° to 65°, and the angle makes the mirror image formed by the 2D display through the reflective surface not parallel to the 2D display body.

[0007] Pixels in different columns on the 2D display are projected to different viewpoints by the first grating, so that the 2D display and the first grating are combined to form a stereo display and used for stereo display. The viewer at the viewpoint can see the corresponding parallax image, thereby generating stereoscopic vision.

[0008] Different rows of pixels on the 2D display are projected to different viewing areas by the second grating. Some pixel rows on the 2D display are projected by the second grating to the area outside the reflective surface and form a direct viewing area; another part of the pixel rows are projected by the second grating to the direction of the reflective surface and are reflected by the reflective surface to form a reflective viewing area.

[0009] The reflection viewing area and the direct viewing area overlap in space. The overlapping area of ​​the viewing areas is the viewing area of ​​the present invention.

[0010] In the overlapping area of ​​the viewing zones, the viewer can directly see the image content in the direct viewing zone through the display, the first grating and the second grating. At the same time, the viewer can also see the image content in the reflective viewing zone through the display, the first grating and the second grating on the reflective surface.

[0011] In addition, in the overlapping area of ​​the viewing zones, the viewer cannot directly see the image content in the reflective viewing zone through the display, the first grating and the second grating. At the same time, the viewer cannot see the image content in the direct viewing zone through the mirror images of the display, the first grating and the second grating on the reflective surface.

[0012] Optionally, the positions of the first grating and the second grating are interchanged.

[0013] Optionally, the pixel rows forming the direct viewing area only include one disparity map, so that the direct viewing area performs 2D display.

[0014] Optionally, the pixel rows forming the reflective viewing area only include one disparity map, so that the reflective viewing area performs 2D display.

[0015] Optionally, the first grating is replaced by an optical parallel plate to remove its light splitting effect, and the pixel rows belonging to the direct viewing area only contain one parallax map, and the pixel rows belonging to the reflective viewing area only contain one parallax map, thereby achieving 2D display.

[0016] In summary, since the viewer can simultaneously see the image content of the direct viewing area displayed on the display, the first grating and the second grating body and the image content of the reflected viewing area displayed on their mirror images, the visual range can be widened; and since the display, the first grating and the second grating body are not parallel to their mirror images, their structure has the depth suggestion of linear perspective, so the three-dimensional perception can be enhanced. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the present invention.

[0018] Figure 2 It is a schematic diagram of the principle of the present invention.

[0019] Figure 3 This is a schematic diagram of the three-dimensional display principle of the present invention.

[0020] Icons: 100-2D display, 110-reflective viewing area pixel row, 120-direct viewing area pixel row, 200-first grating, 300-second grating, 400-reflective surface, 510-reflective viewing area, 520-direct viewing area, 530-viewing area overlap, 101-2D display mirror, 111-reflective viewing area pixel row mirror, 121-direct viewing area pixel row mirror, 201-first grating mirror, 301-second grating mirror, 131-first pixel column, 132-second pixel column, 133-third pixel column, 134-fourth pixel column, 601-first viewpoint, 602-second viewpoint, 603-third viewpoint, 604-fourth viewpoint.

[0021] It should be understood that the above drawings are only schematic and are not drawn to scale. DETAILED DESCRIPTION

[0022] Figure 1 This embodiment provides an enhanced stereoscopic display device based on visual zone superposition.

[0023] The enhanced stereoscopic display device based on visual zone superposition is composed of a 2D display 100 , a first grating 200 , a second grating 300 and a reflective surface 400 .

[0024] The 2D display 100 , the first grating 200 , and the second grating 300 are parallel and placed in sequence front to back.

[0025] Please refer to Figure 2 The reflective surface 400 and the 2D display 100 are placed at an angle of 45°, and the angle makes the 2D display mirror image 101 formed by the 2D display 100 reflected by the reflective surface not parallel to the 2D display 100 body.

[0026] Please refer to Figure 3 The 2D display 100 is combined with the first grating 200 to form a traditional stereoscopic display, which is used for stereoscopic display; specifically, the first grating 200 can project the first pixel column 131, the second pixel column 132, the third pixel column 133, and the fourth pixel column 134 belonging to different parallax images on the 2D display 100 to different spatial positions along the x direction, thereby forming a first viewpoint 601, a second viewpoint 602, a third viewpoint 603, and a fourth viewpoint 604. Viewers at these viewpoints can see the corresponding parallax images, thereby generating stereoscopic vision.

[0027] In the absence of a reflective surface 400, the system optical path is as follows Figure 1As shown, the 2D display 100 and the second grating 300 are combined to form two viewing zones, which are a direct viewing zone 520 and a reflective viewing zone 510. Specifically, the second grating 300 can project the pixel rows on the 2D display 100 belonging to the direct viewing zone 520 and the reflective viewing zone 510 to different spatial positions along the y direction, thereby forming the direct viewing zone 520 and the reflective viewing zone 510.

[0028] After adding the reflective surface 400, the reflective viewing area pixel row 110 is projected from the second grating 300 toward the reflective surface 400. The light of the reflective viewing area 510 is reflected by the reflective surface 400, and its system optical path is as follows: Figure 2 The mirror images formed by the 2D display 100, the reflective viewing zone pixel row 110, the direct viewing zone pixel row 120, the first grating 200, and the second grating 300 through the reflective surface 400 are respectively the 2D display mirror image 101, the reflective viewing zone pixel row mirror image 111, the direct viewing zone pixel row mirror image 121, the first grating mirror image 201, and the second grating mirror image 301. The above mirror images are rotated 90° relative to their bodies, and the reflective viewing zone 510 formed by them will overlap with the direct viewing zone 520 to form a viewing zone overlap area 530.

[0029] Please refer to Figure 2 In the overlapping area 530 of the reflective viewing area 510 and the direct viewing area 520, the viewer can directly see the image content in the direct viewing area 520 through the main bodies of the 2D display 100, the first grating 200 and the second grating 300, that is, the image content provided by the direct viewing area pixel row 120; at the same time, the viewer can also see the image content in the reflective viewing area 510 through the 2D display mirror image 101, the first grating mirror image 201 and the second grating mirror image 301 on the reflective surface 400, that is, the image content provided by the reflective viewing area pixel row mirror image 111.

[0030] Specifically, the direct viewing area 520 is provided with a "ground" scene by the 2D display 100, the first grating 200 and the second grating 300 in a horizontal position; the reflective viewing area 510 is provided with "character" content by the 2D display mirror 101, the first grating mirror 201 and the second grating mirror 301 in a vertical position; the viewer can see the vertical "character" standing on the horizontal "ground", thereby utilizing the depth suggestion of linear perspective, and thus can enhance the three-dimensional perception.

[0031] In addition, within the visual zone overlapping area 530, the viewer cannot directly see the image content in the reflective viewing area 510, that is, the image content provided by the reflective viewing area pixel row 110, through the main bodies of the 2D display 100, the first grating 200 and the second grating 300; at the same time, the viewer cannot see the image content in the direct viewing area 520, that is, the image content provided by the direct viewing area pixel row mirror 121, through the 2D display mirror 101, the first grating mirror 201 and the second grating mirror 301 on the reflective surface 400.

[0032] Specifically, in the visual zone overlap area 530, the 2D display 100, the first grating 200 and the second grating 300 in the horizontal position will not display "people", and the 2D display mirror image 101, the first grating mirror image 201 and the second grating mirror image 301 in the vertical position will not display "ground".

[0033] In summary, since the viewer can simultaneously see the image content of the direct viewing area 520 displayed on the main body of the 2D display 100, the first grating 200 and the second grating 300 and the image content of the reflective viewing area 510 displayed on its mirror image, its viewing range is greater than the display method only realized by the main body in the traditional mode, so it can widen the visible range; and since the main body of the 2D display 100, the first grating 200 and the second grating 300 are not parallel to their mirror images, their structure has the depth suggestion of linear perspective, so the three-dimensional perception can be enhanced.

Claims

1. An enhanced stereoscopic display device based on visual zone superposition, characterized in that: The enhanced stereoscopic display device based on visual zone superposition is composed of a 2D display, a first grating, a second grating and a reflective surface; The 2D display, the first grating, and the second grating are parallel and placed in sequence; The reflective surface is placed at an angle of 30° to 65° with the 2D display; Different columns of pixels on the 2D display are projected to different viewpoints by the first grating; Different rows of pixels on the 2D display are projected to different viewing areas by the second grating; some of the pixel rows on the 2D display are projected to the area outside the reflective surface by the second grating to form a direct viewing area; another part of the pixel rows are projected to the direction of the reflective surface by the second grating to form a reflective viewing area after being reflected by the reflective surface; The reflected view area overlaps with the direct view area in space.

2. The enhanced stereoscopic display device based on visual zone superposition according to claim 1, characterized in that: The positions of the first grating and the second grating are interchanged.

3. The enhanced stereoscopic display device based on visual zone superposition according to claim 1, characterized in that: The pixel rows forming the direct viewing area contain only one disparity map and are displayed in 2D.

4. The enhanced stereoscopic display device based on visual zone superposition according to claim 1, characterized in that: The pixel rows forming the reflective viewing area contain only one disparity map and are displayed in 2D.

5. The enhanced stereoscopic display device based on visual zone superposition according to claim 1, characterized in that: The first grating is replaced by an optical parallel plate, and the pixel rows belonging to the direct viewing area only contain one disparity map, and the pixel rows belonging to the reflective viewing area only contain one disparity map, and 2D display is performed.

Images