Grating assembly, light source device and driving method thereof

Grating assembly, light source device and driving method thereof

  • CN 105,607,172 B
  • Filed: 03/31/2016
  • Issued: 03/27/2020
  • Est. Priority Date: 03/31/2016
  • Status: Active Grant
First Claim
Patent Images

1. A grating assembly, comprising:

  • a diffraction grating which is divided into a plurality of sub-pixels, each of which is divided into 4 regions, for converting light transmitted by each region into parallel light, and light transmitted by each region of the same sub-pixel has different directions;

    the diffraction grating is a light-transmitting plate, a plurality of diffraction chutes which are parallel to each other are arranged in each area, the diffraction chutes in the same area have the same groove angle, and the groove angles and/or the extending directions of the diffraction chutes in different areas of the same sub-pixel are different;

    a selector divided into a plurality of sub-pixels corresponding to the diffraction grating, each sub-pixel being divided into 4 regions corresponding to the diffraction grating, the selector being configured to control whether each region thereof is transparent;

    in one frame of picture, the selector is used for controlling each area of the sub-pixel to sequentially transmit light one by one.

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