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 |