Pixel structure and method of manufacturing the same, array substrate and display device

  • US 10,488,697 B2
  • Filed: 09/19/2017
  • Issued: 11/26/2019
  • Est. Priority Date: 01/22/2017
  • Status: Active Grant
First Claim
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1. A pixel structure, comprising a plurality of sub-pixels arranged in an array on a substrate, each sub-pixel comprising a display region and a non-display region, the non-display region of each sub-pixel being formed with a thin film transistor therein, whereinthe display region of each sub-pixel is formed therein with a sub-wavelength grating for transmitting therethrough light in a predetermined wavelength range,the thin film transistor comprises a gate electrode, andan orthographic projection of the sub-wavelength grating on the substrate is adjacent to and is not overlapped with an orthographic projection of the gate electrode on the substrate,wherein the pixel structure comprises at least three sub-pixels, and the sub-wavelength gratings formed in the display regions of respective sub-pixels have different periods or pitches from each other, so as to transmit therethrough light in different predetermined wavelength ranges respectively,wherein the pixel structure comprises a first sub-pixel, a second sub-pixel and a third sub-pixel, and wherein:

  • the sub-wavelength grating of the first sub-pixel has a period of 400 nm and a pitch of 121 nm, for transmitting red light therethrough;

    the sub-wavelength grating of the second sub-pixel has a period of 350 nm and a pitch of 119 nm, for transmitting green light therethrough; and

    the sub-wavelength grating of the third sub-pixel has a period of 440 nm and a pitch of 263 nm, for transmitting blue light therethrough.

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