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. 20, 2018
Filed:
Jan. 27, 2016
Boe Technology Group Co., Ltd., Beijing, CN;
Beijing Boe Display Technology Co., Ltd., Beijing, CN;
BOE TECHNOLOGY GROUP CO., LTD., Beijing, CN;
BEIJING BOE DISPLAY TECHNOLOGY CO., LTD., Beijing, CN;
Abstract
An optical element includes a light transmitting substrate which includes a first surface having strip-shaped prisms arranged parallel to each other. In a direction along which the prisms are arranged, a side of each prism close to a center of the light transmitting substrate has a refractive surface; from an end of the refracting surface close to a center of the light transmitting substrate to another end of the refracting surface close to an edge of the light transmitting substrate, the refracting surface inclines gradually along a direction away from the first surface. From the prism nearest to the center of the light transmitting substrate to the prism farthest to the center of the light transmitting substrate, an angle between the refracting surface and a normal of the first surface is gradually increased. A light guide plate, a prism, a backlight module and a display device are further provided.