Optical waveguide display device and AR display equipment
A display device and display device technology, applied in the direction of optical waveguide light guide, optical components, instruments, etc., can solve the problems of increasing the complexity of the optical path structure, unfavorable miniaturization of AR display equipment, etc., and achieve the effect of simplifying the optical path structure
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[0027] In a conventional AR display device, the projection light output by the projection light machine is generally a white light formed by mixing red, blue and green light, and the white light is coupled into the waveguide through the coupling grating reflected by the image chip to the waveguide , and is transmitted from one end of the in-coupling grating to one end of the out-coupling grating inside the waveguide and coupled out to the human eye through the diffraction effect of the out-coupling grating.
[0028] At present, there is no suitable solution for mass production of RGB chips. There are only three monochrome chips that output red, blue, and green light to mix into a bunch of white light to generate a color image. quite complicated. Therefore, in this application, it is conceived that the red, blue, and green light rays are not mixed before entering the waveguide, but are coupled into the waveguide through the three-color light beams respectively. In order to mak...
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