OLED array substrate with microcavity structure, and OLED display panel

  • US 10,727,446 B2
  • Filed: 01/12/2017
  • Issued: 07/28/2020
  • Est. Priority Date: 01/15/2016
  • Status: Active Grant
First Claim
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1. An OLED array substrate comprising a plurality of pixel units each including a plurality of sub-pixel units, each of the sub-pixel units comprising a light-emitting portion, each light-emitting portion having a first electrode, a second electrode, and an organic light-emitting layer sandwiched between the first electrode and the second electrode, wherein the first electrode is located further from a light exit side than the second electrode,wherein each sub-pixel unit further comprises an organic film layer and a semi-reflecting mirror layer disposed successively on a light exit side of the second electrode, the first electrode comprises a reflective layer, the second electrode is a transparent electrode, a structure between the first electrode and the semi-reflecting mirror layer constitutes a microcavity structure, and organic film layers of the sub-pixel units of different colors of each pixel unit have different thicknesses, andwherein in each sub-pixel unit, the semi-reflecting mirror layer is a metal layer in which a plurality of holes are regularly arranged, and size, density and arrangement of the plurality of holes are related to a thickness of the organic film layer.

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