Holographic display device and display method thereof

A technology of holographic display and imaging area, applied in the field of holographic display, can solve the problem of narrow viewing angle of holographic display device, and achieve the effect of improving viewing freedom and expanding the viewing angle range

Active Publication Date: 2020-03-13
BOE TECH GRP CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention at least partly solves the problem of the narrow viewing angle of the existing holographic display device, and provides a holographic display device that can expand the viewing angle

Method used

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  • Holographic display device and display method thereof
  • Holographic display device and display method thereof
  • Holographic display device and display method thereof

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Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] This embodiment provides a holographic display device, which includes:

[0037] An imaging unit, which is divided into multiple imaging areas, each imaging area is used to independently form a holographic image;

[0038] A light source unit, which includes a plurality of light source modules, each light source module is used to provide light for an imaging area, and the light emitted by each light source module points to the same viewing position after passing through the corresponding imaging area;

[0039] Eye tracking unit, used to determine the direction of human eyes;

[0040] The control unit is used to control each light source unit and imaging area for holographic display according to the orientation of the human eye.

[0041] The imaging unit of the holographic display device of this embodiment is divided into a plurality of imaging areas that can independently form holographic images, and each imaging area has different orientations, so that the light emitted by each li...

Embodiment 2

[0043] Such as Figure 1 to Figure 8 As shown, this embodiment provides a holographic display device having a structure similar to that of the first embodiment.

[0044] In this embodiment, the light exit side of the imaging unit is a curved surface, more preferably a concave arc surface.

[0045] That is, as figure 1 , figure 2 As shown, the light-emitting side of the above imaging unit (that is, the side far from the light source unit) is preferably a smooth, continuous curved surface, and each imaging area 11 is a part of the curved surface, so each imaging can be changed by adjusting the shape of the curved surface. The direction of the light from area 11. Among them, in order to ensure that the light from each imaging area 11 can be directed to the same viewing position, the above curved surface is preferably a concave curved surface (for example, a part of a spherical surface). Of course, the viewing position should be on the concave side of the concave curved surface (for e...

Embodiment 3

[0066] This embodiment provides a display method of a holographic display device, the holographic display device used is the above-mentioned display device; the display method specifically includes:

[0067] The eye tracking unit determines the direction of the eye;

[0068] The control unit controls the light source unit and the imaging area corresponding to the current direction of the human eye to perform holographic display.

[0069] In other words, when the above holographic display device is used for display, the eye tracking unit should be used to determine the direction of the human eye, and the light source unit and imaging area corresponding to the current direction of the eye should be controlled at any time for holographic display, so that the user When the direction of the eyes is changed within a certain range, the holographic image can be continuously seen, which expands the viewing angle range and improves the viewing freedom.

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PUM

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Abstract

The present invention provides a holographic display device and a display method thereof, belonging to the technical field of holographic display, which can at least partly solve the problem of narrow viewing angle of view in existing holographic display devices. The holographic display device of the present invention includes: an imaging unit, which is divided into a plurality of imaging areas, each of which is used to independently form a holographic image; a light source unit, which includes a plurality of light source modules, and each light source module is used for imaging a The area provides light, and the light emitted by each light source module points to the same viewing position after passing through the corresponding imaging area; the human eye tracking unit is used to determine the direction of the human eye; the control unit is used to control each The light source unit and the imaging area perform holographic display.

Description

Technical field [0001] The invention belongs to the field of holographic display technology, and specifically relates to a holographic display device and a display method thereof. Background technique [0002] Holographic display technology is a display technology that uses the principles of interference and diffraction to record and reproduce the true three-dimensional image of an object. It can display all information from all angles of the object and is considered the final solution to achieve three-dimensional display. [0003] As we all know, holographic reconstruction technology is different from the inspection stereo display technology. It has many advantages such as large depth of field and no dizziness. However, the development of holographic reconstruction technology, especially video holographic reconstruction technology, is also restricted by hardware conditions. The spatial light modulator is required to have a high resolution, and on the other hand, the data processin...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G03H1/22G02B30/27G02B30/00
CPCG03H1/22G02B30/27G03H1/2294G03H2001/0224G03H2001/2236G03H2001/2239G03H2222/34G03H2225/60G03H2226/05G02B27/0093G03H1/2286G02B30/34G02B30/00G03H1/0005G03H2001/0088G03H2001/0212G03H2001/0216G03H2222/53G03H2223/19G03H2223/24G03H2225/22
Inventor 张玉欣石炳川魏伟
Owner BOE TECH GRP CO LTD
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