Projection system

A projection system and projection module technology, applied in the field of projection systems, can solve the problems of inaccurate reproduction of projection systems, color cast, and affect the color expression of projection systems, etc., achieve brightness enhancement, high saturation, and eliminate the problem of high-speed rotation Effect

Inactive Publication Date: 2021-10-08
合肥全色光显科技有限公司
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Problems solved by technology

The size of the color gamut of the projection system directly affects the color expression of the projection system. If the color gamut is insufficient, the projection system will not be able to accurately reproduce the color of the image and cause color cast. Therefore, how to provide a projection with a high color gamut system, becoming the research focus of those skilled in the art

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Embodiment Construction

[0034] As mentioned in the background section, how to provide a projection system with a high color gamut has become a research focus of those skilled in the art.

[0035] Since the projection system usually produces the color to be presented by the ratio of the three primary color light sources of red, green and blue, the color gamut of the projection system depends on its light source. With the development of display technology, people began to use light-emitting diodes (Light-Emitting Diode, LED) instead of traditional bulbs as the light source of projection systems, compared with traditional bulbs such as high-pressure mercury lamps and halogen lamps, LEDs have higher color saturation , showing that the colors in nature are more real and vivid, which can improve the color gamut of the projection system to a certain extent, and LED also has the advantages of high light efficiency, small size, and low cost. Therefore, the projection system with LED as the light source stands ...

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Abstract

The embodiment of the invention discloses a projection system which comprises light source modules, a beam combining module and a projection module, the light source modules comprise two LED light source modules and one laser light source module or one LED light source module and two laser light source modules, the number of the light source modules is three, the three light source modules output three primary color light signals respectively, and the three primary light signals are coaxially combined by the beam combining module to form a combined light signal, so that the projection module outputs a projection image based on the combined light signal. Compared with the projection system with three-primary-color LED light sources, the projection system has the advantages that the LED light sources with one to two primary colors in the three-primary-color LED light sources are replaced by the laser light sources, and compared with the LED light sources, the laser light sources are narrower in spectral width and higher in saturation, so that the color gamut of the projection system can be improved; and compared with an LED light source, the laser light source has the characteristics of high directivity and high brightness, so that the brightness of the projection system is improved.

Description

technical field [0001] The present application relates to the field of display technology, in particular to a projection system. Background technique [0002] A projection system is a device that projects or reflects images onto a screen, and has been widely used in various scenarios such as homes, offices, schools, and entertainment venues. For the design of the projection system, its ultimate goal is to be able to truly reproduce the various colors and scenes in nature that the human eye can see. Therefore, the color gamut of the projection system, that is, the range in which the projection system can present colors Scope is crucial. The size of the color gamut of the projection system directly affects the color expression of the projection system. If the color gamut is insufficient, the projection system will not be able to accurately reproduce the color of the image and cause color cast. Therefore, how to provide a projection with a high color gamut system has become t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03B21/20
CPCG03B21/2013G03B21/2033G03B21/2053G03B21/2066G03B21/208
Inventor 姚昞晖杨雨桦朱立全叶成伟田大伟张金尹亚铁
Owner 合肥全色光显科技有限公司
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