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. 25, 2021
Filed:
Sep. 12, 2018
Huizhou China Star Optoelectronics Technology Co., Ltd., Huizhou, CN;
HUIZHOU CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD., Guangdong, CN;
Abstract
Provided are a direct type backlight module and a liquid crystal display device. The direct type backlight module comprises: a back frame, a backlight source disposed in the back frame and an optical frame disposed relatively spaced from the backlight source; a top edge and two side edges of the back frame are respectively and fixedly connected with a top edge and two side edges of the optical film, and a bottom edge of the back frame is elastically connected with a bottom edge of the optical film. By elastically connecting the bottom edge of the back frame and the bottom edge of the optical film, the optical film is flattened by an elastic force generated by the elastic connection to avoid the collapse of the optical film. Thus, the diffuser can be eliminated and the thickness of the backlight module can be decreased to lower the production cost.