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:
Oct. 24, 2017
Filed:
Jan. 21, 2015
Shenzhen China Star Optoelectronics Technology Co., Ltd., Shenzhen, Guangdong, CN;
Hu He, Guangdong, CN;
SHENZHEN CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD, Shenzhen, CN;
Abstract
The present invention provides a positioning device for an optical membrane that includes at least one positioning hole formed on the optical membrane and at least one positioning pole interposed into the positioning hole respectively, the optical membrane is fixed onto a carrying substrate by traversing said positioning holes by said positioning poles, wherein the profile of each positioning hole extending in corresponding position in the expansion and shrink direction of the optical membrane. A certain width could be reserved in the positioning hole to allow the optical membrane expand and shrink freely at each fixing point and the positioning pole cannot interfere with the positioning hole at the moment of the optical membrane expands and shrinks to cause bending, thus to guarantee flatness of the optical membranes and improve the quality of the backlight module.