OLED array substrate, manufacturing method thereof, display panel and display device

  • US 9,728,749 B2
  • Filed: 04/17/2015
  • Issued: 08/08/2017
  • Est. Priority Date: 10/31/2014
  • Status: Active Grant
First Claim
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1. An OLED array substrate, comprising a substrate and a plurality of pixel units provided on the substrate, each pixel unit comprising a thin film transistor, and a first electrode, an organic light-emitting layer, a second electrode and an optical coupling layer that are sequentially arranged on the thin film transistor, wherein,the optical coupling layer comprises a bottom contacting with the second electrode and an arched top protruding towards a light-exiting direction, andparts of the optical coupling layers corresponding to the pixel units having different colors have different thicknesses.

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