- 专利标题: BACKLIGHT UNIT INCLUDING A PLURALITY OF LEDS AND ASSOCIATED DISTRIBUTED BRAGG REFLECTORS
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申请号: US18763454申请日: 2024-07-03
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公开(公告)号: US20240355961A1公开(公告)日: 2024-10-24
- 发明人: Sungyeol Kim , Hyungsuk Kim , Chunsoon Park , Hyukjun Jang
- 申请人: SAMSUNG ELECTRONICS CO., LTD.
- 申请人地址: KR Suwon-si
- 专利权人: SAMSUNG ELECTRONICS CO., LTD.
- 当前专利权人: SAMSUNG ELECTRONICS CO., LTD.
- 当前专利权人地址: KR Suwon-si
- 优先权: KR 20210138309 2021.10.18
- 主分类号: H01L33/10
- IPC分类号: H01L33/10 ; C01B33/12 ; C01G23/047 ; G02F1/13357 ; H01L25/075
摘要:
A display apparatus includes a liquid crystal panel; and a backlight unit configured to provide light to the liquid crystal panel, wherein the backlight unit includes: a substrate; and a plurality of light emitting diode groups provided on an upper surface of the substrate, wherein each of the plurality of light emitting diode groups includes a red light emitting diode, a green light emitting diode, and a blue light emitting diode, wherein each of the red light emitting diode, the green light emitting diode, and the blue light emitting diode includes: a light emitting layer; and a distributed Bragg reflector (DBR) provided on the light emitting layer, and wherein reflectivities of the distributed Bragg reflectors of the red light emitting diode, the green light emitting diode, and the blue light emitting diode are within a same range of reflectivity according to an incident angle of light incident on the DBRs.
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