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Laser projection equipment

A technology of laser projection and equipment, which is applied in optics, using projection devices, image reproducers, instruments, etc., can solve problems such as poor image display effects, avoid changes in color temperature, improve image display effects, and avoid white balance. effect of change

Pending Publication Date: 2021-01-19
QINGDAO HISENSE LASER DISPLAY CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The invention provides a laser projection device, which can solve the problem that the image display effect of the laser projection device is poor

Method used

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Embodiment Construction

[0033] 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. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments . Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0034] Please refer to figure 1 , which shows a schematic diagram of a partial structure of a light source system provided by an embodiment of the present invention. Such as figure 1 As shown, the current full three-color light source system generally includes two dichroic mirrors 100 , a laser light source 200 , a reflector 300 , a condenser lens 400 , a diffusion wheel 500 and a light rod 600 . Wherein, the laser light source 200 inclu...

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Abstract

The invention relates to laser projection equipment, and belongs to the field of projection display. The laser projection equipment comprises a display control circuit, a laser light source and threegroups of laser driving assemblies, wherein the laser light source comprises three groups of laser assemblies with different colors, and the three groups of laser assemblies are in one-to-one correspondence with the three groups of laser driving assemblies; the display control circuit is connected with each group of laser driving components and is used for outputting three enable signals and threecurrent control signals which are in one-to-one correspondence with the three primary colors of each frame of image. Each group of laser driving components is connected with one corresponding group of laser components and is used for providing driving current corresponding to the laser components to the laser components connected with the laser driving components and adjusting corresponding current control signals according to the working current and the light-emitting brightness of the laser components; each group of laser components is used for emitting light under the driving of the corresponding laser driving current. The image display effect of the laser projection equipment is improved.

Description

technical field [0001] The invention belongs to the field of projection display, in particular to a laser projection device. Background technique [0002] Laser projection devices such as ultra-short-throw laser TVs are widely used in the display field because of their advantages such as high color purity, large color gamut, and high brightness. [0003] Current laser TVs include a light source system to provide three-color projection light sources for the laser TV. The light source system usually includes a laser light source, a fluorescent wheel and a color filter wheel, and the laser light source is usually a blue laser component for emitting blue laser light. The blue laser light is sequentially irradiated onto three different areas of the fluorescent wheel, thereby generating three-color light, and the three-color light is sequentially filtered through the color filter wheel to obtain three-color light with higher purity. However, since the light source system irradia...

Claims

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Application Information

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IPC IPC(8): H04N9/31G03B21/20
CPCG03B21/2033H04N9/3161G03B21/20H04N9/31
Inventor 崔荣荣郭大勃
Owner QINGDAO HISENSE LASER DISPLAY CO LTD
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