CN111123542A

CN111123542A - Depth-enhanced stereoscopic display device

Info

Publication number: CN111123542A
Application number: CN202010133068.2A
Authority: CN
Inventors: 吕国皎; 何若雪; 赵百川
Original assignee: Chengdu Technological University CDTU
Current assignee: Chengdu Technological University CDTU; Chengdu Univeristy of Technology
Priority date: 2020-03-01
Filing date: 2020-03-01
Publication date: 2020-05-08

Abstract

The invention provides a depth-enhanced stereoscopic display device. The depth-enhanced three-dimensional display device is composed of a 2D display panel and a cylindrical lenticular grating; the cylindrical lenticular lens is placed in front of the 2D display panel; the 2D display panel is provided with texture units; the texture unit comprises oblique pixels; the texture units of different columns are used for representing different parallax images, so that the cylindrical lenticulation can project the texture units belonging to different parallax images to different viewpoint positions; when the human eyes are at different viewpoint positions, the parallax images corresponding thereto can be seen, thereby producing stereoscopic vision. The invention can image the parallax image at a certain position of the distance cylindrical lenticulation, thereby realizing the image information display of depth enhancement; and because the pixel direction is inclined, when the position of the viewer moves, the viewer still can see the image texture.

Description

Depth-enhanced stereoscopic display device

Technical Field

The present invention relates to display technology, and more particularly, to stereoscopic display technology.

Background

The stereoscopic display technology is a display technology that can realize real reproduction of a stereoscopic scene, and can provide different parallax images to human eyes, respectively, thereby enabling a person to generate stereoscopic vision. The conventional stereoscopic display apparatus may project the parallax synthetic image to each position in space through the 2D display panel, and may see the parallax image corresponding to the viewer when the viewer is at a different position to generate stereoscopic vision. However, the 2D display panel in the conventional stereoscopic display device cannot provide depth information of image content, and thus, an image finally displayed by the display device is located on the same plane as the display device, and the visual reality is limited. Therefore, the invention provides a depth-enhanced stereoscopic display device.

Disclosure of Invention

The invention provides a depth-enhanced stereoscopic display device. Fig. 1 is a schematic structural diagram of the depth-enhanced stereoscopic display device. The depth-enhanced stereoscopic display device is composed of a 2D display panel and a cylindrical lenticular lens. The lenticular lens is placed in front of the 2D display panel.

Further, referring to fig. 2, the 2D display panel has texture units arranged thereon.

Further, referring to fig. 3, the texture unit includes at least 2 oblique pixels, and the long axis direction of the oblique pixels is not parallel to the long axis direction of the lenticular lens array and is periodically and repeatedly arranged in the horizontal direction.

Further, referring to fig. 4, different columns of texture units are used to represent different parallax images, so that the lenticular lens can project the texture units belonging to different parallax images to different viewpoint positions. When the human eyes are at different viewpoint positions, the parallax images corresponding thereto can be seen, thereby producing stereoscopic vision.

Referring to fig. 3, since the long axis direction of the tilted pixels is not parallel to the long axis direction of the lenticular lens array and the tilted pixels are periodically and repeatedly arranged in the horizontal direction, when the position of the viewer changes, the adjacent boundary positions of the 2 tilted pixels, i.e. the texture, will continue to be in the field of view.

The texture can be imaged by the lenticular lens grating, and the distance from the 2D display panel to the lenticular lens grating is set asl ₁The focal length of the cylindrical lens grating isfThe image distance of the texture imaged by the cylindrical lens grating isl ₂The above parameters satisfy

. It can be seen that the image formed by these textures is located on a distance cylinder lenticulationl ₂At the location.

Optionally, additional slanted pixels may be placed within the texture unit.

Alternatively, the 2D display panel may be replaced with a curtain and a projector.

In summary, according to the depth-enhanced stereoscopic display device of the present invention, the parallax image can be imaged on the distance cylindrical lenticulationl ₂At the position, the image information display with enhanced depth can be realized, and the sense of reality of the stereo image is enhanced. And because the long axis direction of the oblique pixels is not parallel to the long axis direction of the cylindrical lens grating and is periodically and repeatedly arranged in the horizontal direction, when the position of a viewer moves, the adjacent boundary position of the oblique pixels, namely the texture, is continuously positioned in the field of view, and the viewer can still see the image texture.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

FIG. 1 is a schematic structural diagram of the present invention.

Fig. 2 is a schematic view of a 2D display panel according to the present invention.

FIG. 3 is a schematic diagram of a texture unit according to the present invention.

Fig. 4 is a light path diagram for implementing stereoscopic display according to the present invention.

Icon: 010-a depth-enhanced stereoscopic display device; a 100-2D display panel; 200-cylindrical lenticulation; 110-texture unit; 111-first tilted pixels; 112-second slanted pixels.

It should be understood that the above-described figures are merely schematic and are not drawn to scale.

Detailed Description

In order to make the objects, 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 with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the embodiments of the present invention, it should be noted that the terms "first", "second", and the like are used for distinguishing the description, and are not to be construed as indicating or implying relative importance.

Examples

Fig. 1 is a schematic structural diagram of a depth-enhanced stereoscopic display device 010 according to this embodiment. In the figure, the x-coordinate represents the horizontal direction in space, the y-coordinate represents the vertical direction in space, and z represents the direction perpendicular to the x-y plane. The depth-enhanced stereoscopic display device 010 includes a 2D display panel 100 and a lenticular lens 200. The lenticular lens 200 is placed in front of the 2D display panel 100. The cylindrical lenticulation is horizontally arranged, and the long axis direction is vertical.

Referring to fig. 2, the 2D display panel 100 has texture units 110 arranged thereon.

Referring to fig. 3, the texture unit 110 includes 2

oblique pixels

111 and 112, and the long axis directions of the

oblique pixels

111 and 112 are not parallel to the long axis direction of the lenticular lens 100, i.e., the vertical direction, and are periodically arranged 3 times in the horizontal direction within one texture unit.

Further, referring to fig. 4, different columns of texture units 110 are used to represent different parallax images, so the lenticular lens 200 can project the texture units 110 belonging to different parallax images to different viewpoint positions. When the human eyes are at different viewpoint positions, the parallax images corresponding thereto can be seen, thereby producing stereoscopic vision.

Referring to fig. 3, since the long axis directions of the

oblique pixels

111 and 112 are not parallel to the long axis direction of the lenticular lens 200 and are periodically and repeatedly arranged in the horizontal direction, when the position of the viewer changes due to the movement of the viewer position, the adjacent boundary positions of the 2

oblique pixels

111 and 112, i.e. the textures, will remain in the field of view.

The texture can be imaged by the lenticular lens 200, and the distance from the 2D display panel 100 to the lenticular lens 200l ₁Is 3.5 mm, the focal length of the cylindrical lenticulation 200f4 mm, the image distance of the texture imaged by the lenticular lens 200l ₂Is-28 mm, the above parameters are satisfied

. It can be seen that the image formed by these textures is located 28mm behind the lenticular sheet 200.

As described above, according to the depth-enhanced stereoscopic display device 010 of the present invention, the parallax image can be imaged at a position 28mm behind the lenticular lens 200, so that the depth-enhanced image information can be displayed, and the perceived reality of the stereoscopic image can be enhanced. And because the long axis direction of the

tilted pixels

111 and 112 is not parallel to the long axis direction of the lenticular lens 200 and the tilted pixels are periodically and repeatedly arranged in the horizontal direction, when the position of the viewer moves, the adjacent boundary position of the

tilted pixels

111 and 112, i.e. the texture, will be continuously in the field of view, and the viewer can still see the image texture.

Claims

1. A depth-enhanced stereoscopic display device, characterized in that: the depth-enhanced three-dimensional display device is composed of a 2D display panel and a cylindrical lenticular grating; the cylindrical lenticular lens is placed in front of the 2D display panel; the 2D display panel is provided with texture units; the texture unit comprises at least 2 inclined pixels, the long axis direction of the inclined pixels is not parallel to the long axis direction of the cylindrical lenticulation, and the inclined pixels are periodically and repeatedly arranged in the horizontal direction, and the repeated arrangement frequency is more than or equal to 1; the texture units of different columns are used for representing different parallax images, so that the cylindrical lenticulation can project the texture units belonging to different parallax images to different viewpoint positions; when the human eyes are at different viewpoint positions, the parallax images corresponding thereto can be seen, thereby producing stereoscopic vision.

2. A depth-enhanced stereoscopic display apparatus as claimed in claim 1, wherein: when the viewer position moves causing the position of the field of view to change, the intersection of adjacent oblique pixels, i.e., the texture, will continue to be within the field of view.

3. A depth-enhanced stereoscopic display apparatus as claimed in claim 1, wherein: let the distance from the 2D display panel to the lenticular lens bel ₁The focal length of the cylindrical lens grating isfThe image distance of the texture imaged by the cylindrical lens grating isl ₂The above parameters satisfy

。

4. A depth-enhanced stereoscopic display apparatus as claimed in claim 1, wherein: additional slanted pixels may be placed within the texture unit.

5. A depth-enhanced stereoscopic display apparatus as claimed in claim 1, wherein: the 2D display panel may be replaced with a curtain and a projector.