Invention Grant
- Patent Title: Light-emitting device
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Application No.: US16736830Application Date: 2020-01-08
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Publication No.: US11362242B2Publication Date: 2022-06-14
- Inventor: Chih-Hao Lin , Chang-Han Chen , Chun-Peng Lin
- Applicant: Lextar Electronics Corporation
- Applicant Address: TW Hsinchu
- Assignee: Lextar Electronics Corporation
- Current Assignee: Lextar Electronics Corporation
- Current Assignee Address: TW Hsinchu
- Agency: CKC & Partners Co., LLC
- Priority: CN201910068627.3 20190124
- Main IPC: H01L33/58
- IPC: H01L33/58 ; H01L33/56 ; H01L33/54

Abstract:
A light-emitting device includes a panel substrate, a light-emitting chip, and a light extracting layer. The light-emitting chip is disposed on the panel substrate. The light extracting layer covers the light-emitting chip and the panel substrate, and the light extracting layer has a side portion. Taking the position where the edge of the light-emitting chip is in contact with the panel substrate as the origin, the side portion and the origin define a circle tangential to the surface of the side portion. The circle has a radius c which satisfies the following formula (1): 1 40 H ≤ c ≤ H ( 1 ) where H is a height of the light-emitting chip. The light-emitting device disclosed herein has a light extracting layer having a very small thickness, and provides excellent light-emitting efficiency and lifetime of the light-emitting device.
Public/Granted literature
- US20200243734A1 LIGHT-EMITTING DEVICE Public/Granted day:2020-07-30
Information query
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