Invention Grant
- Patent Title: Blue color converter for micro LEDs
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Application No.: US17006663Application Date: 2020-08-28
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Publication No.: US11942576B2Publication Date: 2024-03-26
- Inventor: Yingdong Luo , Lisong Xu , Sivapackia Ganapathiappan , Hou T. Ng , Byung Sung Kwak , Mingwei Zhu , Nag B. Patibandla
- Applicant: Applied Materials, Inc
- Applicant Address: US CA Santa Clara
- Assignee: Applied Materials, Inc.
- Current Assignee: Applied Materials, Inc.
- Current Assignee Address: US CA Santa Clara
- Agency: Fish & Richardson P.C.
- Main IPC: H01L33/50
- IPC: H01L33/50 ; C09K11/02 ; C09K11/06 ; H01L33/00

Abstract:
A photocurable composition includes a blue photoluminescent material, one or more monomers, and a photoinitiator that initiates polymerization of the one or more monomers in response to absorption of the ultraviolet light. The blue photoluminescent material is selected to absorb ultraviolet light with a maximum wavelength in a range of about 300 nm to about 430 nm and to emit blue light. The blue photoluminescent material also has an emission peak in a range of about 420 nm to about 480 nm. The full width at half maximum of the emission peak is less than 100 nm, and the photoluminescence quantum yield is in a range of 5% to 100%.
Public/Granted literature
- US20220069174A1 BLUE COLOR CONVERTER FOR MICRO LEDS Public/Granted day:2022-03-03
Information query
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