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. 04, 2024
Filed:
May. 18, 2021
Chipone Technology (Beijing) Co., Ltd., Beijing, CN;
Aqiang Liu, Beijing, CN;
CHIPONE TECHNOLOGY (BEIJING) CO., LTD., Beijing, CN;
Abstract
Disclosed is a brightness adjustment method, a device and a display apparatus. The method comprises: acquiring a brightness adjustment instruction and a target display brightness value of a display panel, a display brightness value representing backlight brightness of the display panel; adjusting a duty cycle of the light-emitting control signal based on the target display brightness value of the display panel; driving LEDs of a corresponding row in a backlight source to emit light by the adjusted light-emitting control signal. Each time the duty cycle of the light-emitting control signal needs to be adjusted, a duty cycle of each pulse cycle of a part of N pulse cycles of the light-emitting control signal is selected for corresponding adjustment, thus backlight brightness adjustment accuracy of the display panel is effectively improved, and an adjustable range of backlight brightness of the display panel is wider.