- 专利标题: Light emitting device and projector
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申请号: US17644806申请日: 2021-12-17
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公开(公告)号: US12125947B2公开(公告)日: 2024-10-22
- 发明人: Takafumi Noda , Yoji Kitano
- 申请人: Seiko Epson Corporation
- 申请人地址: JP Tokyo
- 专利权人: SEIKO EPSON CORPORATION
- 当前专利权人: SEIKO EPSON CORPORATION
- 当前专利权人地址: JP
- 代理机构: Harness, Dickey & Pierce, P.L.C.
- 优先权: JP 20209972 2020.12.18
- 主分类号: H01L33/38
- IPC分类号: H01L33/38 ; G03B21/20 ; H01L33/46
摘要:
A light emitting device includes n columnar parts, and an electrode configured to inject an electrical current into the n columnar parts, wherein each of the n columnar parts includes a first semiconductor layer, a second semiconductor layer different in conductivity type from the first semiconductor layer, and a light emitting layer disposed between the first semiconductor layer and the second semiconductor layer, when viewed from a stacking direction of the first semiconductor layer and the light emitting layer, p first columnar parts out of the n columnar parts fail to overlap an outer edge of the electrode, q second columnar parts out of the n columnar parts overlap the outer edge of the electrode, a number of the second columnar parts centers of which overlap the electrode out of the q second columnar parts is larger than a number of the second columnar parts centers of which fail to overlap the electrode, and n=p+q is fulfilled.
公开/授权文献
- US20220199861A1 Light Emitting Device And Projector 公开/授权日:2022-06-23
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