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OLED display panel and manufacture method thereof, display device

  • US 10,439,163 B2
  • Filed: 10/13/2017
  • Issued: 10/08/2019
  • Est. Priority Date: 02/20/2017
  • Status: Active Grant
First Claim
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1. A manufacture method of an organic light emitting diode (OLED) display panel, comprising:

  • providing a base substrate, the base substrate comprising a display area and a package area that is located at a periphery of the display area;

    forming a driving transistor, a passivation layer and an OLED display unit on the base substrate, wherein the OLED display unit and the driving transistor are formed in the display area, the passivation layer is formed in both the display area and the package area, the passivation layer comprises a plurality of recesses that are formed in the package area and a via hole that is formed in the display area to expose a source electrode or a drain electrode of the driving transistor, the via hole and the plurality of recesses are formed by same one patterning process, and the recesses are through holes that penetrate the passivation layer;

    forming a gate insulating layer in both the display area and the package area during forming the driving transistor, and partially etching the gate insulating layer to form non-through holes, with the through holes exposing the gate insulating layer, during forming the through holes in the passivation layer;

    coating a sealant in the package area, wherein the sealant covers the plurality of recesses; and

    providing a package substrate, wherein the package substrate and the base substrate are assembled together and sealed oppositely by the sealant.

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