Invention Grant
- Patent Title: Light emitting device having multiple light emitting elements
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Application No.: US17086975Application Date: 2020-11-02
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Publication No.: US11677048B2Publication Date: 2023-06-13
- Inventor: Takuya Nakabayashi , Tadaaki Ikeda , Toru Hashimoto , Yukiko Yokote
- Applicant: NICHIA CORPORATION
- Applicant Address: JP Anan
- Assignee: NICHIA CORPORATION
- Current Assignee: NICHIA CORPORATION
- Current Assignee Address: JP Anan
- Agency: Hunton Andrews Kurth LLP
- Priority: JP 2017246293 2017.12.22
- Main IPC: H01L33/50
- IPC: H01L33/50 ; H01L25/075 ; H01L33/58 ; H01L33/62 ; H01L33/64 ; C09K11/61 ; H01L33/60

Abstract:
A light emitting device includes a first light emitting element including a rectangular first light extraction surface, a second light emitting element including a rectangular second light extraction surface and emitting light having an emission peak wavelength different from an emission peak wavelength of the first light emitting element, and a light-transmissive member covering the first light extraction surface and the second light extraction surface. The light-transmissive member includes a first light-transmissive layer facing the first light extraction surface and the second light extraction surface, a wavelength conversion layer located on the first light-transmissive layer, and a second light-transmissive layer located on the wavelength conversion layer. The first light-transmissive layer contains a first matrix and first diffusive particles. The wavelength conversion layer contains a second matrix and wavelength conversion particles. The second light-transmissive layer contains a third matrix and second diffusive particles.
Public/Granted literature
- US20210050488A1 LIGHT EMITTING DEVICE HAVING MULTIPLE LIGHT EMITTING ELEMENTS Public/Granted day:2021-02-18
Information query
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