Laser scanning device and laser display system

A technology of laser display and field scanning, which is applied to parts, optics, and optical components of TV systems, can solve problems such as speckle, and achieve the effects of eliminating coherent noise, reducing segmentation errors, and eliminating laser speckle.

Inactive Publication Date: 2016-02-24
HANGZHOU HONGSHI TECH
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, since the three primary color lasers are combined, coherent noise will be generated, resulting in speckle, so the device still cannot optimally reflect the characteristics of laser display

Method used

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  • Laser scanning device and laser display system
  • Laser scanning device and laser display system
  • Laser scanning device and laser display system

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Embodiment Construction

[0072] The technical scheme of the present invention will be further described below in conjunction with the accompanying drawings. The detailed description follows with reference to the accompanying drawings, which form a part hereof and, in the present invention, are shown by way of explanation of specific embodiments for carrying out the invention. It is to be understood that other embodiments may be utilized and structural or logical changes may be made without departing from the scope of the present invention. For example, features explained or described for one embodiment can be used on or in combination with other embodiments to yield a still further embodiment. It is intended that the present invention includes such modifications and variations. These examples were described with specific language, but they should not be construed as limiting the scope of the appended claims. The drawings are for explanatory purposes only and are not drawn to scale. For purposes of ...

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Abstract

The invention relates to a laser scanning device and a laser display system. The laser scanning device uses a piezoelectric ceramic bimorph element as a core component so as to reduce the segmentation error of a rotating mirror forming a TV laser display system, and realize the high requirements on the rotating speed of the rotating mirror and the stability thereof; furthermore, the laser display system disclosed by the invention uses an electro-optical crystal to eliminate the coherent noise of a synthetic beam so as to eliminate laser speckles and improve the high definition of the image quality.

Description

technical field [0001] The invention relates to the field of laser display, in particular to a laser scanning device and a laser display system for a laser TV, a laser movie, and indoor or outdoor large-screen laser display. Background technique [0002] Televisions and color displays have become the necessities of modern life. Due to the huge potential and profits of this market, all countries are committed to the development of high-definition and large-screen displays to meet people's constantly updated needs for this product, such as: large-screen plasma display (PDP), liquid crystal display (LCD), etc. Using lasers as light sources for color displays is a trend in the development of laser technology, and it has always been the dream of researchers. With the successful development and launch of red, green, and blue three-color semiconductor lasers, the advent of laser TV is possible, and it has become the most powerful competitor in the display market in this century. ...

Claims

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Application Information

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IPC IPC(8): H04N5/44G02B26/10
CPCH04N5/44G02B26/10
Inventor 刘新厚刘新建李世元
Owner HANGZHOU HONGSHI TECH
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