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:
Feb. 04, 2025
Filed:
Mar. 28, 2022
Hefei Xinsheng Optoelectronics Technology Co., Ltd., Anhui, CN;
Boe Technology Group Co., Ltd., Beijing, CN;
Yong Ma, Beijing, CN;
Haifeng Xu, Beijing, CN;
Xiaochun Shi, Beijing, CN;
Jinfeng Zhang, Beijing, CN;
Tao Liu, Beijing, CN;
Hefei Xinsheng Optoelectronics Technology Co., Ltd., Anhui, CN;
BOE Technology Group Co., Ltd., Beijing, CN;
Abstract
A backlight module includes a back plate, a plastic frame disposed on one side of the back plate and connected with the back plate, a light source assembly located on an inner side of the plastic frame, and a reflective sheet, a light guide plate, and an optical membrane group sequentially stacked and located on the inner side of the plastic frame; the light source assembly includes a circuit board and a light source disposed on a first side surface of the circuit board, and the light source is located at a first side edge of the light guide plate; the light guide plate includes a first surface facing the reflective sheet and a second surface facing away from the reflective sheet; a first rectangular annular step and a second rectangular annular step are provided on an end face of the plastic frame facing the back plate.