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:
Jun. 24, 2025
Filed:
Mar. 31, 2022
Beijing Boe Display Technology Co., Ltd., Beijing, CN;
Boe Technology Group Co., Ltd., Beijing, CN;
Guojian Qu, Beijing, CN;
Yangyang Cai, Beijing, CN;
Qiaoke Zhou, Beijing, CN;
Yawei Chen, Beijing, CN;
Jing Wang, Beijing, CN;
Tanhong Zhao, Beijing, CN;
Gang Li, Beijing, CN;
BEIJING BOE DISPLAY TECHNOLOGY CO., LTD., Beijing, CN;
BOE TECHNOLOGY GROUP CO., LTD., Beijing, CN;
Abstract
A backlight module includes a backlight source and a backlight driving unit. The backlight source includes a white-light source and a compensating light source. The backlight driving unit includes a primary driving module and a compensating driving module. The primary driving module, within a compensation time duration, according to a current environmental temperature, selects a compensation-driving function corresponding to the current environmental temperature; and according to the selected compensation-driving function, supplies a compensation controlling signal to the compensating driving module. The compensating driving module acquires the compensation controlling signal, and according to the compensation controlling signal, supplies a driving signal to the compensating light source. The compensating light source acquires the driving signal, and emits light when driven by the driving signal, whereby a variation value of a white-dot chromaticity coordinate of the displaying module within the compensation time duration is within a preset range.