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:
Sep. 15, 2026
Filed:
Oct. 09, 2025
Coretronic Corporation, Hsin-Chu, TW;
Tzeng-Ke Shiau, Hsin-Chu, TW;
Ying-Shun Syu, Hsin-Chu, TW;
Coretronic Corporation, Hsin-Chu, TW;
Abstract
A surface light source module includes a light guide plate. The light guide plate has a first surface on which a plurality of microstructures are provided. Each microstructure has a first structural surface and a symmetry plane, a boundary between the first structural surface and the symmetry plane is provided with a first intersection line, the first intersection line includes a first line segment part, and the first line segment part has a first end and a second end that are opposite to each other. There is a first height between the first end and the first surface, there is a second height between the second end and the first surface, each microstructure has a maximum depth, and an absolute value of a difference between the first height and the second height is greater than or equal to one-third of the maximum depth. A display device is also provided.