Invention Grant
- Patent Title: In-situ curing of color conversion layer in recess
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Application No.: US16416098Application Date: 2019-05-17
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Publication No.: US11239213B2Publication Date: 2022-02-01
- Inventor: Daihua Zhang , Yingdong Luo , Mingwei Zhu , Hou T. Ng , Sivapackia Ganapathiappan , 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 ; H01L25/075 ; H01L33/00 ; H01L33/32

Abstract:
A method of fabricating a multi-color display includes dispensing a photo-curable fluid over a display having an array of LEDs disposed below a cover layer. The cover has an outer surface with a plurality of recesses, and the photo-curable fluid fills the recesses. The photo-curable fluid includes a color conversion agent. A plurality of LEDs in the array are activated to illuminate and cure the photo-curable fluid to form a color conversion layer in the recesses over the activated LEDs. This layer will convert light from these LEDs to light of a first color. An uncured remainder of the photo-curable fluid is removed. Then the process is repeated with a different photo-curable fluid having a different color conversion agent and a different plurality of LEDs. This forms a second color conversion layer in different plurality of recesses to convert light from these LEDs to light of a second color.
Information query
IPC分类: