Invention Grant
- Patent Title: Light emitting display apparatus having improved light extraction and color gamut
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Application No.: US17006475Application Date: 2020-08-28
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Publication No.: US11552270B2Publication Date: 2023-01-10
- Inventor: Dongmin Sim , Hyekyung Choi , Wonhoe Koo
- Applicant: LG Display Co., Ltd.
- Applicant Address: KR Seoul
- Assignee: LG Display Co., Ltd.
- Current Assignee: LG Display Co., Ltd.
- Current Assignee Address: KR Seoul
- Agency: Birch, Stewart, Kolasch & Birch, LLP
- Priority: KR10-2019-0152920 20191126
- Main IPC: H01L51/52
- IPC: H01L51/52 ; H01L27/32

Abstract:
A light emitting display apparatus includes a substrate including a plurality of sub-pixels; an overcoating layer on the substrate and having a base portion and a protrusion portion; a first electrode disposed to cover a side portion of the protrusion portion and the base portion at the plurality of sub-pixels; a bank layer covering a portion of the first electrode and the overcoating layer; and a light emitting layer and a second electrode on the first electrode and the bank layer at the plurality of sub-pixels. The first electrode includes a reflective layer and a transparent conductive layer on the reflective layer, the transparent conductive layer includes a first portion on the base portion and a second portion on a side surface of the protrusion portion, and a thickness of the second portion is greater than a thickness of the first portion.
Public/Granted literature
- US20210159445A1 LIGHT EMITTING DISPLAY APPARATUS Public/Granted day:2021-05-27
Information query
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