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Double grating free stereo projection display apparatus

A technology for stereoscopic projection and display devices, applied in stereophotography, stereoscopic systems, diffraction gratings, etc., can solve problems such as reducing the resolution of stereoscopic images

Inactive Publication Date: 2008-11-19
SICHUAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In general, flat-panel displays are difficult to achieve super-large size, and the grating will reduce the resolution of stereoscopic images

Method used

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  • Double grating free stereo projection display apparatus
  • Double grating free stereo projection display apparatus
  • Double grating free stereo projection display apparatus

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Embodiment Construction

[0013] The embodiment of a dual-grating autostereoscopic projection display device proposed by the present invention will be described in detail below with reference to the accompanying drawings, and the present invention will be further described in detail. It is necessary to point out that the following examples are only used for further description of the present invention, and cannot be interpreted as limiting the protection scope of the present invention, and those skilled in the art make some non-essential improvements to the present invention according to the above-mentioned content of the present invention And adjustments still belong to the protection scope of the present invention.

[0014] Accompanying drawing 3 is a specific embodiment of the dual grating autostereoscopic projection display device of the present invention. The stereoscopic display device adopts 4 DLP projectors to form a projector array, and the resolution of each projector is 1024×768. There are ...

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Abstract

The invention discloses a double-raster auto-stereoscopic projection display device, which is characterized in that the device is composed of a projector array and a stereoscopic projection screen; wherein, the stereoscopic projection screen is composed of a stereoscopic raster, a projection screen and a mask raster. The mask raster is an opaque flake with penetrating slots or pores; the slots can take linear shape or ladder shape. The stereoscopic raster can be a cylindrical lens raster or slit raster. A lens is added between the projector array and the stereoscopic projection screen; a reflector and other optical devices are used to reduce the vertical size of the entire device. The invention realizes large-size and high-resolution auto-stereoscopic display.

Description

1. Technical field [0001] The present invention relates to the technical field of stereoscopic display, and more specifically, the present invention relates to the technical field of autostereoscopic display. 2. Background technology [0002] The grating autostereoscopic display based on binocular parallax and grating light splitting principle is an important autostereoscopic display, which is formed by adding gratings to a two-dimensional flat display. In general, it is difficult to achieve super large size for flat-panel displays, and the grating will reduce the resolution of stereoscopic images. The invention proposes a new stereoscopic display mode, which realizes free stereoscopic display with large size and high resolution by using the principle of projector array and double grating stereoscopic display. 3. Contents of the invention [0003] The present invention proposes a dual grating free stereoscopic projection display device, the structure of which is shown in ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03B35/20H04N13/00G02B5/18
Inventor 王琼华陶宇虹李大海
Owner SICHUAN UNIV
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