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:
Jul. 28, 2015
Filed:
Jun. 28, 2012
Chechang HU, Shenzhen, CN;
HU He, Shenzhen, CN;
Chechang Hu, Shenzhen, CN;
Hu He, Shenzhen, CN;
Shenzhen China Star Optoelectronics Technology Co., Ltd., Shenzhen, Guangdong Province, CN;
Abstract
A light guide plate includes upper microstructures forming an upper surface. The upper microstructures are distributed in a successive convex-concave alternating arrangement in a direction perpendicular to propagation direction of light in the light guide plate. The light guide plate is divided according to the distance from the light source in the light propagation direction into a proximal side and a remote side. With H indicating height of shape features of the upper microstructures and P indicating spacing between the shape features of the upper microstructures, the shape features of the upper microstructures show a distribution that is variable in the light propagation direction in such a way that the variation satisfies the condition that aspect ratio H/P of the upper microstructures at the proximal side of the light guide plate is less than aspect ratio H/P of the upper microstructures at the remote side of the light guide plate.