Invention Application
- Patent Title: DISPLAY APPARATUS
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Application No.: US17572113Application Date: 2022-01-10
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Publication No.: US20220246698A1Publication Date: 2022-08-04
- Inventor: Seil Kim , Hongkyun Ahn , Jungwoo Ko , Sangmin Yi
- 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
- Priority: KR10-2021-0014973 20210202
- Main IPC: H01L27/32
- IPC: H01L27/32 ; H01L51/52

Abstract:
A display apparatus includes: a substrate; a 1-1 light-emitting device and a 1-2 light-emitting device over the substrate and each comprising a first emission layer and a first charge generation layer; a second light-emitting device adjacent to the 1-1 light-emitting device and comprising a second emission layer comprising a material that emits light of a color different from that of the first emission layer and a second charge generation layer spaced apart from the first charge generation layer; and a pixel-defining layer comprising an opening exposing a center portion of a pixel electrode of each of the 1-1 light-emitting device, the 1-2 light-emitting device, and the second light-emitting device, wherein an upper surface of the pixel-defining layer between the 1-1 light-emitting device and the 1-2 light-emitting device comprises a first groove concave toward the substrate, wherein the first charge generation layer is cut off at the first groove.
Information query
IPC分类: