Array substrate, manufacturing method thereof, display panel and display device

Array substrate, manufacturing method thereof, display panel and display device

  • CN 105,845,711 B
  • Filed: 05/17/2016
  • Issued: 05/29/2020
  • Est. Priority Date: 05/17/2016
  • Status: Active Grant
First Claim
Patent Images

1. An OLED array substrate, comprising:

  • a first substrate;

    the pixel definition structures divide the position of the upper surface of the first substrate, which corresponds to the display area, into a plurality of sub-pixel regions, and the upper surface of at least one pixel definition structure is provided with a groove;

    the supporting structure is positioned in the groove on the upper surface of the pixel defining structure, the upper surface of the supporting structure is higher than the upper surface of the pixel defining structure, the supporting structure is made of an insulating material, the cross section of the supporting structure is trapezoidal, and the area of one side of the supporting structure, which is far away from the groove, is smaller than the area of one side of the supporting structure, which is far towards the groove;

    an anode and a light emitting layer in the sub-pixel region;

    a cathode layer covering the light emitting layer and the upper surface of the support structure, the cathode layer completely covering the light emitting layer, the support structure and the pixel defining structure;

    wherein the depth of the groove is 1/10-1/5, inclusive, of the distance between the upper surface and the lower surface of the pixel defining structure.

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