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Three-dimensional liquid-crystal projecting displaying device with big screen

A liquid crystal projection and display device technology, applied in the direction of using projection device image reproducer, projection device, TV, etc., can solve the problems of 3D image polarization conversion switch performance, etc., to save power consumption, reduce production and operation costs , the effect of reducing size and power consumption

Inactive Publication Date: 2005-07-27
SICHUAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Another problem is that the 3D image contrast is limited by the performance of the polarization switch

Method used

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  • Three-dimensional liquid-crystal projecting displaying device with big screen
  • Three-dimensional liquid-crystal projecting displaying device with big screen
  • Three-dimensional liquid-crystal projecting displaying device with big screen

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] The optical path of the LCD display system of the 3D stereo projection display device is the optical path of the reflective LCD display system. The basic structure of the 3D stereo projection display device and the optical path of the reflective LCD display system are as follows. figure 1 and attached figure 2 shown.

[0035]A stereoscopic liquid crystal projection display device that can adapt to large-screen display, and its three-dimensional stereoscopic liquid crystal projection display optical route separates the unpolarized light from the light source 1 into a set of polarized light splitters (PBS) 2, which are P-polarized light and S-polarized light. A group of reflective polarized liquid crystal light valves LCD3-1, LCD3-2, a projection lens 4 and a projection screen 5 are composed. The two groups of polarized liquid crystal light valves LCD3-1 and LCD3-2 respectively control the P-polarized light and S-polarized light, the two groups of polarized liquid cryst...

Embodiment 2

[0039] The optical path of the LCD projection display system of the three-dimensional projection display device is the optical path of the transmissive LCD projection display system. figure 1 , Figure 3, attached Figure 4 and shown in Figure 5.

[0040] A stereoscopic liquid crystal projection display device that can adapt to large-screen display, and its three-dimensional stereoscopic liquid crystal projection display optical route is a set of polarized light splitters (PBS) 2 that separate the unpolarized light from the light source 1 into P-polarized light and S-polarized light, mainly Two groups of integrated optical paths composed of transmission type polarized light liquid crystal light valve LCD11-1 and LCD11-2, projection lens 4 and projection screen 5, two groups of transmission type polarized light liquid crystal light valve integrated light paths are respectively controlled by polarized light separators. The separated P-polarized light and S-polarized light, the t...

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PUM

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Abstract

A display device consists of a set of polarized light separator for separating nonpolarized light to be polarized light P and S, crystal light valve LCD1 and LCD2 to control light P and light S, one projective lens and one projective screen. It is featured as displaying left and right eye image formed by integrated light path separately and viewing two images in different polarization state by wearing polarized light glasses so as to form 3-D visual effect in the cerebrum.

Description

1. Technical field [0001] The present invention relates to the technical field of three-dimensional (3D) projection display, and more particularly, to the technical field of large-screen three-dimensional (3D) stereoscopic liquid crystal projection polarized glasses display. 2. Background technology [0002] Three-dimensional (3D) display is a high-tech related to national economic development and national defense security. All countries have invested a lot of manpower and funds in research and development in order to obtain technological advantages. Three-dimensional display is divided into two categories: wearing glasses and not wearing glasses, the latter is in the development stage, the former technology is relatively mature. The prior art 3D display products mainly belong to this category. Among 3D display products, 3D display using polarized glasses is the mainstream product today, but due to cost constraints, it is currently mainly used in special fields such as ente...

Claims

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Application Information

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IPC IPC(8): G02B27/18G02B27/28G02B30/25G02F1/13G03B21/00H04N5/74H04N9/31
CPCG02B27/26G02B30/25
Inventor 王琼华
Owner SICHUAN UNIV
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