The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
May. 06, 2025

Filed:

Mar. 28, 2024
Applicant:

Nichia Corporation, Anan, JP;

Inventor:

Takeshi Tamura, Tokushima, JP;

Assignee:

NICHIA CORPORATION, Anan, JP;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G02F 1/13357 (2005.12); G02F 1/1335 (2005.12);
U.S. Cl.
CPC ...
G02F 1/133611 (2012.12); G02F 1/133606 (2012.12); G02F 1/133607 (2020.12);
Abstract

A planar light source includes: a plurality of light sources disposed two-dimensionally, each including: a light-emitting element, a light-transmissive member covering the light-emitting element, and a light adjustment member disposed on an upper surface of the light-transmissive member and located above the light-emitting element. The plurality of light sources include, in a top view, a plurality of central light sources disposed in a central region, and a plurality of peripheral light sources disposed in a peripheral region located outward of the central region. The plurality of peripheral light sources include a first light source in which a light transmittance of the light adjustment member is higher than a light transmittance of the light adjustment members of the central light sources.


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