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公开(公告)号:US20230124292A1
公开(公告)日:2023-04-20
申请号:US17759941
申请日:2021-02-02
Applicant: Corning Incorporated
Inventor: Kirk Richard Allen , David Lynn Baker , Songfeng Han , Dmitri Vladislavovich Kuksenkov , Pamela Arlene Maurey , Xiang-Dong Mi , Timothy James Orsley , Andrii Varanytsia
IPC: F21V8/00
Abstract: A backlight includes a substrate, a plurality of light sources proximate the substrate, a first reflective layer on the substrate, and a plurality of patterned reflectors over the plurality of light sources. Each light source includes a size measured in a plane parallel to the substrate. Each patterned reflector is aligned with a corresponding light source and includes a thickness profile.
The thickness profile includes a substantially flat section and a curved section extending from and surrounding the substantially flat section. The substantially flat section varies in thickness by no more than plus or minus 20 percent of an average thickness of the substantially flat section. The substantially flat section includes a size in a plane parallel to the substrate equal to or greater than the size of each light source.