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.
Patent No.:
Date of Patent:
Aug. 11, 2026
Filed:
Jul. 02, 2025
Sharp Display Technology Corporation, Kameyama City, JP;
Satsuki Hagihara, Kameyama City, JP;
Sharp Display Technology Corporation, Ksmeyama City, JP;
Abstract
A backlight device includes light-emitting elements, supported by a substrate, that emit excitation light, a first phosphor layer containing a phosphor that produces fluorescence upon receiving the excitation light, and a partitioning member forming spaces each of which accommodates any one or more of the light-emitting elements between the substrate and the first phosphor layer. The partitioning member includes walls each of which, in a top view, encloses the one or more of the light-emitting elements accommodated in each space, apices each of which connects ones of the walls that are adjacent to each other, one or more first through-holes formed in the walls, and one or more second through-holes formed in the apices. An air gap is formed between adjacent two walls by the two walls and one of the apices that connects them. The second through-hole communicates with the first through-hole via the air gap.