display screen

Abstract

A display device includes a light source device, a first spatial light modulator, a second spatial light modulator, a first light recovery device, and a second light recovery device. The light source device is used to emit light of a first color, fluorescence of a second color, and fluorescence of a second color Two-color supplementary light, third-color fluorescence and third-color supplementary light; the first spatial light modulator is used to modulate the first color light to generate the first color image light and modulate the second color fluorescence and the second color supplementary light to generate the second color image light and non-image light; the second spatial light modulator modulates the third color fluorescent light and the third color supplementary light to generate the third color image light and non-image light, and the first light recycling device converts the non-image light generated by the first spatial light modulator The first color light and the second color supplementary light in the image light are recycled to the first spatial light modulator for reuse; the second light recycling device recycles the third color supplementary light in the non-image light generated by the second spatial light modulator to the second spatial light modulator for reuse.

Description

technical field [0001] The present invention relates to the field of display technology, in particular to a display device. Background technique [0002] The color gamut usually refers to the spectral trajectory of visible light that the human eye can see in nature, and the area formed by the visible spectral trajectory is the largest color gamut area that the human eye can see visible light. At present, display devices such as projectors and monitors composed of different display devices all use R, G, and B three-primary color display devices to restore and reproduce images in color. In a specified chromaticity space, such as the CIE1931 xy chromaticity space, the triangle formed by the three primary colors of R, G, and B of the display device is called the color gamut that the device can display. The larger the area of ​​the color gamut space, the more people feel. The more vivid and realistic the color picture is, however, how to enable the display device to display a wi...

AI Technical Summary

Problems solved by technology

Speckle is due to the coherence of laser light, which causes the light reflected on the display plane to interfere with the phase difference caused by the fluctuation of the plane, resulting in uneven brightness distribution of the display screen.

Although there are many inventions trying to solve the problem of laser speckle, the results are not satisfactory

The second is the high cost of RGB laser display equipment

[0011] However, the above two designs also have certain deficiencies. For example, the first one is not aimed at the display device of the existing two-chip spatial light modulator, and the second one has restrictions on the type of spatial light modulator. It is necessary to improve

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