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Display device, light converting device and display system

  • US 10,013,925 B2
  • Filed: 06/22/2016
  • Issued: 07/03/2018
  • Est. Priority Date: 09/28/2015
  • Status: Active Grant
First Claim
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1. An anti-peep display device, comprising:

  • a light-emitting module configured to emit at least two non-visible lights, non-visible lights of different types among which having different wavelengths; and

    a first control module configured to control the light-emitting module to alternately emit the at least two non-visible lights at a wavelength adjusted timing, and to send a synchronous signal to a light converting device, wherein the light converting device comprises a second control module, the second control module comprising a first control unit with a first selecting sub-unit, a wavelength converting unit, and a second control unit with a second selecting sub-unit, the first selecting sub-unit and the second selecting sub-unit synchronously adjusting angles of mirrors in a first optical path and a second optical path, respectively, wherein the light-emitting module comprises;

    a visible light source; and

    a second wavelength converting unit configured to convert a visible light emitted from the visible light source into a non-visible light,wherein the first control module is configured to control the second wavelength converting unit to alternately convert the visible light into at least two non-visible lights at a wavelength adjusted timing.

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