Depth enhancement space stereo display device based on asymmetric mirror image

Abstract

In order to solve the problems that a traditional naked eye three-dimensional display device has a frame and is preferential in authenticity, and a visual fatigue phenomenon caused by front and back depth mismatch of pixels and an image is not beneficial to display of an element cosmic space with relatively large depth, the invention provides a depth enhancement space three-dimensional display device based on an asymmetric mirror image. The device is composed of a three-dimensional space tube body, an asymmetric mirror image depth display, a semi-transparent and semi-reflective sheet and a three-dimensional display. The asymmetric mirror image depth display can form front and back three-dimensional spaces with asymmetric mirror images after being reflected by the semi-transparent and semi-reflecting sheet. The stereoscopic display is positioned behind the semi-transparent and semi-reflecting sheet and is overlapped with the rear stereoscopic space, so that a frame of the stereoscopic display is hidden, and a visual effect that a stereoscopic image provided by the stereoscopic display is positioned in the stereoscopic space is generated. Since the pixels of the front and back three-dimensional space are distributed in the front and back depth direction, the front and back depth mismatch of the pixels and the image is not generated, and the display of the element cosmic space with larger depth can be realized.

Description

Technical Field

[0001] The present invention belongs to the field of stereoscopic display technology, and more specifically, the present invention relates to a depth-enhanced spatial stereoscopic display device based on an asymmetric mirror image. Background Art

[0002] Traditional naked-eye stereoscopic display devices are divided into grating stereoscopic display, light field stereoscopic display, holographic stereoscopic display and other types. They usually have borders, and viewers can easily realize that the stereoscopic image is provided by the display, not real. In addition, when the stereoscopic depth of the scene displayed by the traditional stereoscopic display is too large, that is, when the depth of the stereoscopic image is too far from the front and back position of the screen, it will also cause serious visual fatigue due to the mismatch between the front and back depth of the pixel and the image. Therefore, it is difficult for existing stereoscopic displays to fully display a three-dimensional space with a strong sense of depth. With the rapid development of artificial intelligence and metaverse technology, it is urgent to improve the traditional stereoscopic display technology and propose a spatial stereoscopic display technology that is suitable for metaverse space display and can achieve a larger stereoscopic depth. In order to solve the above problems, the present invention proposes a depth-enhanced spatial stereoscopic display device based on asymmetric mirroring. Summary of the invention

[0003] In order to solve the problem that traditional naked-eye stereoscopic display devices have borders, viewers are easily aware that the stereoscopic image is provided by the display rather than exists in reality, and when the stereoscopic depth of the displayed scene is too large, the visual fatigue phenomenon caused by the mismatch between the front and back depths of pixels and images is not conducive to the display of a metaverse space with a larger depth, the present invention provides a depth-enhanced spatial stereoscopic display device based on an asymmetric mirror.

[0004] The depth-enhanced spatial stereoscopic display device based on an asymmetric mirror image comprises a stereoscopic spatial tube body, an asymmetric mirror image depth display, a semi-transparent and semi-reflective film and a stereoscopic display.

[0005] The three-dimensional space tube body has an opening surface serving as a viewing window.

[0006] The three-dimensional space tube body has a three-dimensional image surface on which a semi-transparent and semi-reflective film is installed.

[0007] Preferably, the opening surface of the three-dimensional space tube and the three-dimensional image surface are respectively located at two ends of the three-dimensional space tube.

[0008] The three-dimensional space tube body has an inner side surface, and the asymmetric mirror image depth display is installed on the inner side surface of the three-dimensional space tube body. The number of the asymmetric mirror image depth display is greater than or equal to one.

[0009] Optionally, when an asymmetric mirror depth display is not installed on a certain inner side surface of the three-dimensional space tube body, the tube body removes the side surface.

[0010] The inner side surface of the three-dimensional space tube body is perpendicular to the three-dimensional image surface.

[0011] The stereoscopic display is placed behind the semi-transparent and semi-reflective film, and is located on both sides of the semi-transparent and semi-reflective film with the asymmetric mirror depth display.

[0012] The asymmetric mirror depth display comprises a 2D display panel and a beam splitter; the beam splitter is parallel to the 2D display panel and spaced apart; the 2D display panel is provided with first-type pixels and second-type pixels, the first-type pixel light is directly projected to the viewing area through the beam splitter, and the second-type pixel light is projected to the viewing area after being projected by the beam splitter and reflected by the semi-transparent and semi-reflective film; one side of the viewing area is aligned with the semi-transparent and semi-reflective film, and its length is D .

[0013] The depth of the three-dimensional space tube in the front-to-back direction is d , and preferably D > d .

[0014] When the slit grating is used as the beam splitter, the distance from the viewing area to the slit grating is l 2 , the distance from the slit grating to the 2D display panel is l 1 , the slit pitch along the front-to-back direction is p 2 , the pitch of the first type of pixels and the second type of pixels along the front-to-back direction is p 1 , then p 2 / p 1 = l 2 / ( l 2 + l 1 ),and D / p 1 = l 2 / l 1 .

[0015] When the light splitting element adopts a pinhole array, the distance from the viewing area to the pinhole array is l 2 , the distance from the pinhole array to the 2D display panel is l 1 , the pitch of the pinhole array along the front-to-back direction is p 2 , the pitch of the first type of pixels and the second type of pixels along the front-to-back direction is p 1 , then p 2 / p 1 = l 2 / ( l 2 + l 1 ) and D / p 1 = l 2 / l 1 .

[0016] When the beam splitter uses a cylindrical lens grating, the distance from the viewing area to the cylindrical lens grating is l 2 , l 2 is equal to the focal length of the cylindrical lens grating, and the distance from the cylindrical lens grating to the 2D display panel is l 1 , the pitch of the cylindrical lens grating along the front and rear directions is p 2 , the pitch of the first type of pixels and the second type of pixels along the front-to-back direction is p 1 , then p 2 / p 1 = l 2 / ( l 2 + l 1 ),and D / p 1 = l 2 / l 1 .

[0017] When the light splitting element adopts a lens array, the distance from the viewing area to the lens array is l 2 , l 2 is equal to the focal length of the lens array, and the distance from the lens array to the 2D display panel is l 1 , the lens array pitch along the front-to-back direction is p 2 , the pitch of the first type of pixels and the second type of pixels along the front-to-back direction is p 1 , then p 2 / p 1 = l2 / ( l 2 + l 1 ),and D / p 1 = l 2 / l 1 .

[0018] Based on the above geometric relationship, the first type of pixels are displayed in front of the semi-transparent and semi-reflective film and constitute the front stereoscopic space; the second type of pixels are displayed behind the semi-transparent and semi-reflective film and constitute the rear stereoscopic space; the human eye directly sees the first type of pixels on the asymmetric mirror depth display, and sees the second type of pixels on the asymmetric mirror depth display through reflection from the semi-transparent and semi-reflective film.

[0019] Because the front three-dimensional space is composed of the first type of pixels, and the rear three-dimensional space image is composed of the second type of pixels, they do not interfere with each other. The rear three-dimensional space formed by the semi-transparent and semi-reflective mirror reflection has no symmetrical relationship with the front three-dimensional space, and the two are combined to form an overall three-dimensional space.

[0020] The stereo display is placed behind the semi-transparent and semi-reflective film and overlaps with the rear stereo space. The human eye sees the stereo image on the stereo display through the semi-transparent and semi-reflective film. Since the frame of the stereo display does not emit light, but there is visible light in the rear stereo space, the viewer cannot visually see the frame of the stereo display, and a visual effect of the stereo image being located in the overall stereo space can be produced, that is, the technical effect of making the stereo display transparent. In other words, the core technical innovation of the present invention lies in using the semi-transparent and semi-reflective film to hide the frame of the stereo display.

[0021] Based on the technical principle of the present invention, the stereoscopic display can be replaced by a 2D display, and the present invention can form a visual effect that the image provided by the 2D display is located in the overall stereoscopic space.

[0022] To sum up, the present invention can construct a front stereoscopic space and a rear stereoscopic space that do not form a symmetrical mirror relationship through an asymmetric mirror depth display and a semi-transparent and semi-reflective film, and because the stereoscopic display is placed behind the semi-transparent and semi-reflective film and overlaps with the rear stereoscopic space, and because the frame of the stereoscopic display does not emit light, the viewer cannot visually see the frame of the stereoscopic display, and can produce a visual effect that the stereoscopic image is located in the overall stereoscopic space; further, because the pixels of the front and rear stereoscopic spaces of the present invention are distributed in the front and rear depth directions, there will be no front and rear depth mismatch between pixels and images, which is conducive to achieving a metaverse space display with a greater depth. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the structure of the present invention.

[0024] Figure 2 It is a schematic diagram of the structure of the asymmetric mirror depth display in the present invention.

[0025] Figure 3 This is a diagram showing the depth display effect of the asymmetric mirror image in the present invention.

[0026] Figure 4 It is a schematic diagram of the borderless three-dimensional image effect in the present invention.

[0027] Figure 5 It is a schematic structural diagram of the second embodiment of the present invention.

[0028] Figure 6 This is a schematic diagram of the effect of the second embodiment of the present invention.

[0029] Icons: 100 - asymmetric mirror depth display; 200 - semi-transparent and semi-reflective film; 300 - stereoscopic display; 110 - 2D display panel; 120 - spectroscopic element; 111 - first type of pixel; 112 - second type of pixel; 410 - front space image; 420 - rear space image; 500 - 2D display; 600 - viewing area.

[0030] It should be understood that the above drawings are only schematic and are not drawn to scale. DETAILED DESCRIPTION

[0031] Figure 1 This embodiment provides a depth-enhanced spatial stereoscopic display device based on an asymmetric mirror.

[0032] The depth-enhanced spatial stereoscopic display device based on an asymmetric mirror image comprises a stereoscopic spatial tube body, an asymmetric mirror image depth display 100 , a semi-transparent and semi-reflective film 200 and a stereoscopic display 300 .

[0033] Please refer to Figure 1 The three-dimensional space tube body has an opening surface ABCD as a viewing window.

[0034] Please refer to Figure 1 The three-dimensional space tube body has a three-dimensional image surface EFGH, on which a semi-transparent and semi-reflective film 200 is installed.

[0035] The opening surface ABCD of the three-dimensional space tube and the three-dimensional image surface EFGH are respectively located at two ends of the three-dimensional space tube.

[0036] The three-dimensional space tube has four inner side surfaces, namely, surface ABEF, surface BCGF, surface CGHD and surface ADHE. Four asymmetric mirror depth displays 100 are respectively installed on the four inner side surfaces of the three-dimensional space tube.

[0037] The inner side surface of the three-dimensional space tube body is perpendicular to the three-dimensional image surface.

[0038] The stereoscopic display 300 is placed behind the semi-transparent and semi-reflective film 200 , and is located on both sides of the semi-transparent and semi-reflective film 200 together with the asymmetric mirror depth display 100 .

[0039] Please refer to Figure 2 The asymmetric mirror depth display 100 includes a 2D display panel 110 and a beam splitter 120; the beam splitter 120 is placed parallel to the 2D display panel 110 and spaced apart; the 2D display panel 110 is provided with a first type of pixel 111 and a second type of pixel 112, the light of the first type of pixel 111 is directly projected to the viewing area 600 through the beam splitter 120, and the light of the second type of pixel 112 is projected to the viewing area 600 after being projected by the beam splitter 120 and reflected by the semi-transparent and semi-reflective film 200; one side of the viewing area 600 is aligned with the semi-transparent and semi-reflective film 200, and its length D The depth of the three-dimensional space tube in the front-to-back direction is 40 cm d =5 cm, and D > d .

[0040] Please refer to Figure 2 , the light splitting element 120 adopts a slit grating, and the distance from the viewing area 600 to the slit grating is l 2 is 10 cm, and the distance from the slit grating to the 2D display panel 110 l 1 0.25 mm, the slit pitch along the front-to-back direction p 2 The pitch of the first type of pixel 111 and the second type of pixel 112 in the front-to-back direction is 0.9975 mm. p 1 is 1 mm, then p 2 / p 1 = l 2 / ( l 2 + l 1 ),and D / p 1 = l 2 / l 1 .

[0041] Please refer to Figure 2 and Figure 3Based on the above geometric relationship, the first type of pixels 111 are displayed in front of the semi-transparent and semi-reflective film 200, and constitute the front stereoscopic space ABCDEFGH; the second type of pixels 112 are displayed behind the semi-transparent and semi-reflective film 200, and constitute the rear stereoscopic space EFGHA'B'C'D'; the human eye directly sees the first type of pixels 111 on the 2D display panel 110 on the asymmetric mirror depth display, and sees the second type of pixels 112 on the 2D display panel 110 on the asymmetric mirror depth display through reflection of the semi-transparent and semi-reflective film 200.

[0042] Because the front stereoscopic space is composed of the first type of pixels 111, and the rear stereoscopic space image is composed of the second type of pixels 112, they do not interfere with each other, and the rear stereoscopic space formed by the semi-transparent and semi-reflective mirror reflection has no symmetric relationship with the front stereoscopic space, and the two are combined to form an overall stereoscopic space. Specifically, the viewer sees the front space image 410 in the front stereoscopic space ABCDEFGH, and sees the rear space image 420 in the rear stereoscopic space EFGHA'B'C'D'.

[0043] Please refer to Figure 4 The stereoscopic display 300 is placed behind the semi-transparent and semi-reflective film 200 and overlaps with the rear stereoscopic space EFGHA'B'C'D'. The human eye sees the stereoscopic image on the stereoscopic display 300 through the semi-transparent and semi-reflective film 200. Since the frame of the stereoscopic display 300 does not emit light, the viewer cannot visually see the frame of the stereoscopic display 300, and a visual effect that the stereoscopic image is located in the overall stereoscopic space ABCDA'B'C'D' can be generated.

[0044] Figure 5 Another embodiment provides a depth-enhanced spatial stereoscopic display device based on an asymmetric mirror.

[0045] The depth-enhanced spatial stereoscopic display device based on an asymmetric mirror image comprises a stereoscopic spatial tube body, an asymmetric mirror image depth display 100 , a semi-transparent and semi-reflective film 200 and a 2D display 500 .

[0046] Please refer to Figure 5 The three-dimensional space tube body has an opening surface ABCD as a viewing window.

[0047] Please refer to Figure 5 The three-dimensional space tube body has a three-dimensional image surface EFGH, on which a semi-transparent and semi-reflective film 200 is installed.

[0048] The opening surface ABCD of the three-dimensional space tube and the three-dimensional image surface EFGH are respectively located at two ends of the three-dimensional space tube.

[0049] The three-dimensional space tube body has only one inner side surface, which is BCGF. An asymmetric mirror depth display 100 is installed on the only inner side surface of the three-dimensional space tube body, and the other surfaces of the three-dimensional space tube body are removed.

[0050] The inner side surface BCFG of the three-dimensional space tube is perpendicular to the three-dimensional image surface EFGH.

[0051] The 2D display 500 is placed behind the semi-transparent and semi-reflective film 200 , and is located on both sides of the semi-transparent and semi-reflective film 200 together with the asymmetric mirror depth display 100 .

[0052] Please refer to Figure 2 The asymmetric mirror depth display 100 includes a 2D display panel 110 and a beam splitter 120; the beam splitter 120 is placed parallel to the 2D display panel 110 and spaced apart; the 2D display panel 110 is provided with a first type of pixel 111 and a second type of pixel 112, the light of the first type of pixel 111 is directly projected to the viewing area through the beam splitter 120, and the light of the second type of pixel 112 is projected to the viewing area after being projected by the beam splitter 120 and reflected by the semi-transparent and semi-reflective film 200; one side of the viewing area is aligned with the semi-transparent and semi-reflective film 200, and its length D The depth of the three-dimensional space tube in the front-to-back direction is 40 cm d =5 cm, and D > d .

[0053] Please refer to Figure 2 , the light splitting element 120 adopts a slit grating, and the distance from the viewing area to the slit grating is l 2 is 10 cm, and the distance from the slit grating to the 2D display panel 110 l 1 0.25 mm, the slit pitch along the front-to-back direction p 2 The pitch of the first type of pixel 111 and the second type of pixel 112 in the front-to-back direction is 0.9975 mm. p 1 is 1 mm, then p 2 / p 1 = l 2 / ( l 2 + l 1 ),and D / p 1 = l 2 / l 1 .

[0054] Please refer to Figure 2 and Figure 6Based on the above geometric relationship, the first type of pixels 111 are displayed in front of the semi-transparent and semi-reflective film 200 and constitute a front stereoscopic space, and the surface BCGF in the front stereoscopic space includes the front space image 410; the second type of pixels 112 are displayed behind the semi-transparent and semi-reflective film 200 and constitute a rear stereoscopic space, and the surface GFB'C' in the rear stereoscopic space includes the rear space image 420; the human eye directly sees the first type of pixels 111 on the 2D display panel 110 on the asymmetric mirror depth display, and sees the second type of pixels 112 on the 2D display panel 110 on the asymmetric mirror depth display through reflection of the semi-transparent and semi-reflective film 200.

[0055] Please refer to Figure 6 The 2D display 500 is placed behind the semi-transparent and semi-reflective film 200 and overlaps with the rear space image 420 in the rear stereoscopic space. The human eye sees the 2D image on the 2D display 500 through the semi-transparent and semi-reflective film 200. Since the frame of the 2D display 500 does not emit light, the viewer cannot visually see the frame of the 2D display 500, and a stereoscopic visual effect of the 2D image standing on the surface BCB'C' can be generated.

[0056] To sum up, the present invention can construct a front stereoscopic space and a rear stereoscopic space that do not form a symmetrical mirror relationship through an asymmetric mirror depth display 100 and a semi-transparent and semi-reflective film 200, and because the stereoscopic display 300 or the 2D display 500 is placed behind the semi-transparent and semi-reflective film 200 and overlaps with the rear stereoscopic space, the frame of the stereoscopic display 300 or the 2D display 500 does not emit light, and the viewer cannot visually see the frame of the stereoscopic display 300 or the 2D display 500 because it can produce a visual effect that the image is located in the overall stereoscopic space; further, because the pixels of the front and rear stereoscopic spaces of the present invention are distributed in the front and rear depth direction, there will be no front and rear depth mismatch between pixels and images, which is conducive to achieving a metaverse space display with a greater depth.

Claims

1. A depth-enhanced spatial stereoscopic display device based on an asymmetric mirror, characterized in that: The depth-enhanced spatial stereoscopic display device based on asymmetric mirror images comprises a stereoscopic spatial tube body, an asymmetric mirror image depth display, a semi-transparent and semi-reflective film and a stereoscopic display; The three-dimensional space tube body has an opening surface serving as a viewing window; The three-dimensional space tube body has a three-dimensional image surface, on which a semi-transparent and semi-reflective film is installed; The three-dimensional space tube body has an inner side surface, and the asymmetric mirror image depth display is installed on the inner side surface of the three-dimensional space tube body, and the number of the asymmetric mirror image depth display is greater than or equal to 1; The inner side surface of the three-dimensional space tube is perpendicular to the three-dimensional image surface; The stereo display is placed behind the semi-transparent and semi-reflective film, and the asymmetric mirror depth display is placed on both sides of the semi-transparent and semi-reflective film; The asymmetric mirror depth display comprises a 2D display panel and a beam splitter; the beam splitter is parallel to the 2D display panel and spaced apart; the 2D display panel is provided with first-type pixels and second-type pixels, the first-type pixel light is directly projected to the viewing area through the beam splitter, and the second-type pixel light is projected to the viewing area after being projected by the beam splitter and reflected by the semi-transparent and semi-reflective film; one side of the viewing area is aligned with the semi-transparent and semi-reflective film, and its length is D ; The first type of pixels are displayed in front of the semi-transparent and semi-reflective film and constitute the front stereoscopic space; the second type of pixels are displayed behind the semi-transparent and semi-reflective film and constitute the rear stereoscopic space; the human eye directly sees the first type of pixels on the asymmetric mirror depth display, and sees the second type of pixels on the asymmetric mirror depth display through reflection from the semi-transparent and semi-reflective film; The front stereoscopic space is composed of the first type of pixels, and the rear stereoscopic space image is composed of the second type of pixels. They do not interfere with each other. The rear stereoscopic space formed by the semi-transparent and semi-reflective mirror reflection has no symmetrical relationship with the front stereoscopic space. The two are combined to form an overall stereoscopic space. The stereoscopic display is placed behind the semi-transparent and semi-reflective film and overlaps with the rear stereoscopic space. The human eye sees the stereoscopic image on the stereoscopic display through the semi-transparent and semi-reflective film.

2. The depth-enhanced spatial stereoscopic display device based on asymmetric mirroring according to claim 1, characterized in that: The opening surface and the three-dimensional image surface of the three-dimensional space tube body are respectively located at two ends of the three-dimensional space tube body.

3. The depth-enhanced spatial stereoscopic display device based on asymmetric mirroring as claimed in claim 1, characterized in that: When an asymmetric mirror depth display is not installed on a certain inner side surface of the three-dimensional space tube body, the tube body removes the side surface.

4. The depth-enhanced spatial stereoscopic display device based on asymmetric mirroring as claimed in claim 1, characterized in that: The depth of the three-dimensional space tube in the front-to-back direction is d , and have D > d .

5. The depth-enhanced spatial stereoscopic display device based on asymmetric mirroring as claimed in claim 1, characterized in that: The slit grating is used as the light splitting element. The distance from the viewing area to the slit grating is l 2. The distance from the slit grating to the 2D display panel is l 1, the slit pitch along the front-to-back direction is p 2. The pitch of the first type of pixels and the second type of pixels along the front-to-back direction is p 1, then p 2 / p 1= l 2 / ( l 2+ l 1), and D / p 1= l 2 / l 1.

6. The depth-enhanced spatial stereoscopic display device based on asymmetric mirroring as claimed in claim 1, characterized in that: The light splitting element uses a pinhole array. Assume that the distance from the viewing area to the pinhole array is l 2. The distance from the pinhole array to the 2D display panel is l 1. The pitch of the pinhole array along the front-to-back direction is p 2. The pitch of the first type of pixels and the second type of pixels along the front-to-back direction is p 1, then p 2 / p 1= l 2 / ( l 2+ l 1) and D / p 1= l 2 / l 1.

7. The depth-enhanced spatial stereoscopic display device based on asymmetric mirroring as claimed in claim 1, characterized in that: The beam splitter uses a cylindrical lens grating. The distance from the viewing area to the cylindrical lens grating is l 2, l 2 is equal to the focal length of the cylindrical lens grating, and the distance from the cylindrical lens grating to the 2D display panel is l 1. The pitch of the cylindrical lens grating along the front and rear directions is p 2. The pitch of the first type of pixels and the second type of pixels along the front-to-back direction is p 1, then p 2 / p 1= l 2 / ( l 2+ l 1), and D / p 1= l 2 / l 1.

8. The depth-enhanced spatial stereoscopic display device based on asymmetric mirroring as claimed in claim 1, characterized in that: The light splitting element uses a lens array. Assume that the distance from the viewing area to the lens array is l 2, l 2 is equal to the focal length of the lens array, and the distance from the lens array to the 2D display panel is l 1. The pitch of the lens array along the front-to-back direction is p 2. The pitch of the first type of pixels and the second type of pixels along the front-to-back direction is p 1, then p 2 / p 1= l 2 / ( l 2+ l 1), and D / p 1= l 2 / l 1.

9. The depth-enhanced spatial stereoscopic display device based on asymmetric mirroring as claimed in claim 1, characterized in that: The stereoscopic display is replaced by a 2D display, and a visual effect is formed that the image provided by the 2D display is located in the overall stereoscopic space.

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