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Single projector type stereoscopic projection system, projector and driving method

A technology of stereoscopic projection and projector, applied in stereoscopic system, stereophotography, photography, etc., can solve the problem of high cost and achieve the effect of low cost, increased contrast and good 3D experience

Active Publication Date: 2015-07-22
SHENZHEN AV DISPLAY
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  • Abstract
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  • Claims
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Problems solved by technology

This method requires two projectors to be accurately aligned to ensure the accuracy of the projection position, and the brightness of the xenon lamps of the two projectors is basically the same and the attenuation speed is basically the same. Using two projectors at the same time costs a lot

Method used

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  • Single projector type stereoscopic projection system, projector and driving method
  • Single projector type stereoscopic projection system, projector and driving method
  • Single projector type stereoscopic projection system, projector and driving method

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Embodiment Construction

[0025] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0026] In the present invention, one projector is matched with two VA-type liquid crystal light valves and supporting circuits to realize a single projector and high-contrast projected stereoscopic images.

[0027] figure 1 The optical structure of the single-projector stereoscopic projection system provided by the embodiment of the present invention is shown, and for the convenience of description, only the parts related to this embodiment are shown. refer to figure 1 The single-projector stereoscopic projection system provided by the embodiment of the present invention sequentially includes alo...

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PUM

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Abstract

A dual liquid crystal light valve single projector type stereographic projection system comprises a projector (1), a linear polarizer (2), a first vertical alignment type liquid crystal light valve (3), a second vertical alignment type light valve (4), a polarization state converter (5), a projection screen (6), a pair of rotatory polarization glasses (7) and a synchronous circuit (8) in the direction of a light path in sequence. Compared with a dual projector type stereographic projection system, the single projector type stereographic projection system of the present invention has a simple structure, low costs and a high image quality.

Description

technical field [0001] The invention belongs to the technical field of stereoscopic projection, and in particular relates to a single-projector type stereoscopic projection system, a projector and a driving method. A projector is used to match two vertically arranged liquid crystal light valves and circular polarizing glasses to realize stereoscopic projection. Background technique [0002] The existing stereoscopic projection technology generally utilizes two projectors, and a fixed left-handed circular polarizer and a right-handed circular polarizer are respectively installed in front of the two lenses to convert the light into left-handed circularly polarized light and right-handed circularly polarized light. Projected on a screen, the audience can watch stereoscopic images after wearing circular polarizer glasses. This method requires two projectors to be accurately aligned to ensure the accuracy of the projection position, and the brightness and attenuation speed of the...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G03B35/26G02B27/26H04N13/00G02B30/25H04N13/363
CPCH04N13/0459H04N13/0434G03B35/26G02B27/26H04N13/337H04N13/363G02B30/25
Inventor 李艳龙
Owner SHENZHEN AV DISPLAY
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