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:
Nov. 25, 2025
Filed:
Mar. 17, 2025
Champ Vision Display Inc., Miao-Li County, TW;
Chin-Ku Liu, Miao-Li County, TW;
Chung-Hao Wu, Miao-Li County, TW;
CHAMP VISION DISPLAY INC., Miao-Li County, TW;
Abstract
A light guide plate and a light source device including the light guide plate are provided. The light guide plate has a light incident surface and a first surface. The first surface has multiple imaginary reference positioning lines extending along a first direction. At least one optical microstructure set is disposed on the first surface corresponding to each imaginary reference positioning line. Each optical microstructure set includes multiple rod-shaped microstructures, and some of the rod-shaped microstructures on multiple imaginary reference positioning lines on the first surface form a pattern microstructure group. When looking down at the first surface, a perpendicular bisector of a boundary line between each rod-shaped microstructure in the pattern microstructure group and the first surface all passes through a center point of a light-emitting surface of a light-emitting element in a light source.