Invention Grant
- Patent Title: Display device
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Application No.: US17417422Application Date: 2019-10-14
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Publication No.: US11871608B2Publication Date: 2024-01-09
- Inventor: Byunghan Yoo , Geebum Kim , Sangwoo Kim , Chaungi Choi , Jungha Son , Taekyung Ahn , Kijune Lee , Jaeik Lim
- 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: H.C. Park & Associates, PLC
- Priority: KR 20180171135 2018.12.27
- International Application: PCT/KR2019/013432 2019.10.14
- International Announcement: WO2020/138665A 2020.07.02
- Date entered country: 2021-06-23
- Main IPC: H10K50/85
- IPC: H10K50/85 ; H10K59/00

Abstract:
A display device having an improved light-extraction efficiency and a reduced color sense variation according to a viewing angle includes a pixel electrode on a substrate, an insulating layer defining an emission area via an opening that covers edges of the pixel electrode and exposes a center portion of the pixel electrode, a first light extraction pattern on the pixel electrode, the first light extraction pattern having a side surface inclined at a first angle, and a second light extraction pattern surrounding the first light extraction pattern on an outer portion of the first light extraction pattern, the second light extraction pattern having a side surface inclined at a second angle that is less than the first angle.
Public/Granted literature
- US20220085331A1 DISPLAY DEVICE Public/Granted day:2022-03-17
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