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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: 2018-03-13
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

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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] A human eye tracking unit for determining the direction of human eyes;

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

[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 is oriented differently, so that the li...

Embodiment 2

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

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

[0045] That is, if figure 1 , figure 2 As shown, the light-emitting side of the above imaging unit (that is, the side away from the light source unit) is preferably a smooth and continuous curved surface, and each imaging area 11 is a part of the curved surface, so each imaging area can be changed by adjusting the shape of the curved surface. The light output direction of zone 11. Wherein, in order to ensure that the light output of each imaging area 11 can point to the same viewing position, the above curved surface is preferably a concave curved surface (such as a part of a spherical surface). Of course, at this time, the viewing position should be lo...

Embodiment 3

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

[0067] The human eye tracking unit determines the orientation of human eyes;

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

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

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PUM

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Abstract

The invention provides a holographic display device and a display method thereof and belongs to the technical field of holographic display, and at least the problem that an existing holographic display device is narrow in viewing angle can be partially solved. The holographic display device comprises an imaging unit, a light source unit, a human eye tracking unit and a control unit, wherein the imaging unit is divided into a plurality of imaging areas; each imaging area is used for independently forming a holographic image; the light source unit comprises a plurality of light source modules; each light source module is used for providing one imaging area with light; the light emitted from the light source modules passes through the corresponding imaging areas and then points to the same viewing position; the human eye tracking unit is used for determining the orientation of human eyes; and the control unit is used for controlling the light source units and the imaging areas to carry out holographic display according to the orientation of the human eyes.

Description

technical field [0001] The invention belongs to the technical field of holographic display, and in particular 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 real three-dimensional image of an object. It can display all information from all angles of the object and is considered to be the ultimate solution for realizing three-dimensional display. [0003] As we all know, holographic reproduction technology is different from inspection stereoscopic display technology. It has many advantages such as large depth of field and no dizziness. However, the development of holographic reproduction technology, especially video holographic reproduction technology, is also restricted by hardware conditions. On the one hand, this technology The spatial light modulator is required to have very high re...

Claims

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Application Information

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IPC IPC(8): G03H1/22G02B27/22G02B30/00
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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