发明名称 Organic light-emitting display apparatus and method of manufacturing the same
摘要 Provided are an organic light-emitting display apparatus having a very low defect rate in a manufacturing process, and a method of manufacturing the organic light-emitting display apparatus. The organic light-emitting display apparatus includes: a substrate; a planarization layer covering the substrate and having a top surface including a recessed portion; a pixel electrode in the recessed portion of the planarization layer; a step forming unit on the top surface of the planarization layer outside of the recessed portion; and a pixel-defining layer exposing at least a central portion of the pixel electrode, and covering the step forming unit so that a top surface of the pixel-defining layer includes a protruding portion corresponding to the step forming unit.
申请公布号 US9184387(B2) 申请公布日期 2015.11.10
申请号 US201313952427 申请日期 2013.07.26
申请人 Samsung Display Co., Ltd. 发明人 Kim Jeong-Hun
分类号 H01L51/52;H01L51/00;H01L27/32 主分类号 H01L51/52
代理机构 Christie, Parker & Hale, LLP 代理人 Christie, Parker & Hale, LLP
主权项 1. An organic light-emitting display apparatus comprising: a substrate; a planarization layer covering the substrate and having a top surface comprising a recessed portion; a pixel electrode in the recessed portion of the planarization layer; a step forming unit on the top surface of the planarization layer outside of the recessed portion; and a pixel-defining layer exposing at least a central portion of the pixel electrode, and covering the step forming unit so that a top surface of the pixel-defining layer comprises a protruding portion corresponding to the step forming unit, wherein the pixel electrode and the step forming unit comprise the same material.
地址 Yongin-si KR