Invention Grant
- Patent Title: Method of forming display electrodes and pixel defining layers without an increase of masks
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Application No.: US16899124Application Date: 2020-06-11
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Publication No.: US11502145B2Publication Date: 2022-11-15
- Inventor: Gwuihyun Park , Pilsoon Hong , Chulwon Park , Koichi Sugitani , Hyungbin Cho , Hyein Kim
- Applicant: Samsung Display Co., Ltd.
- Applicant Address: KR Yongin-si
- Assignee: Samsung Display Co., Ltd.
- Current Assignee: Samsung Display Co., Ltd.
- Current Assignee Address: KR Yongin-si
- Agency: Kile Park Reed & Houtteman PLLC
- Priority: KR10-2019-0126292 20191011
- Main IPC: H01L27/32
- IPC: H01L27/32 ; H01L51/00 ; H01L51/52 ; H01L51/56

Abstract:
A method of manufacturing a light-emitting display apparatus and a light-emitting display apparatus are provided. The method includes forming a first photosensitive layer on a conductive material layer, forming a pixel electrode by etching the conductive material layer by using the first photosensitive layer as a mask, ashing the first photosensitive layer disposed on the pixel electrode, forming a pixel defining layer that covers an edge portion of the pixel electrode and includes a first opening overlapping the ashed first photosensitive layer, removing the ashed first photosensitive layer disposed in the first opening, forming an intermediate layer including a functional layer and an emission layer on the pixel defining layer, and forming an opposite electrode on the intermediate layer.
Public/Granted literature
- US20210111232A1 LIGHT-EMITTING DISPLAY APPARATUS Public/Granted day:2021-04-15
Information query
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