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:
May. 01, 2018
Filed:
Feb. 02, 2015
Chien-hui Lee, Hsin-Chu, TW;
Min-chun Chou, Hsin-Chu, TW;
Ming-dah Liu, Hsin-Chu, TW;
Ching-hsiang LI, Hsin-Chu, TW;
Chang-cheng Liu, Hsin-Chu, TW;
Wen-yen Chiu, Hsin-Chu, TW;
Chien-Hui Lee, Hsin-Chu, TW;
Min-Chun Chou, Hsin-Chu, TW;
Ming-Dah Liu, Hsin-Chu, TW;
Ching-Hsiang Li, Hsin-Chu, TW;
Chang-Cheng Liu, Hsin-Chu, TW;
Wen-Yen Chiu, Hsin-Chu, TW;
Young Lighting Technology Inc., Hsin-Chu, TW;
Abstract
A backlight module includes a light guide plate having a bottom surface, a light emitting surface, a first light incident surface, and microstructures. Each microstructure recesses into or protrudes from the bottom surface and has a first and a second surfaces. The first and the second surfaces of at least one of the microstructures are located on two sides of a first reference plane parallel to the first light incident surface. A section-line of each first surface on a second reference plane perpendicular to the first light incident surface and perpendicular to the light emitting surface is a straight line. A first angle between each first surface and a third reference plane parallel to the light emitting surface in the light guide plate is between 0 degrees and 20 degrees, and a thickness of each microstructure is between 0 micrometers and 20 micrometers.