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. 15, 2019
Filed:
Jan. 28, 2019
Shenzhen China Star Optoelectronics Technology Co., Ltd., Shenzhen, Guangdong, CN;
Wendong Li, Guangdong, CN;
Shenzhen China Star Optoelectronics Technology Co., Ltd., Shenzhen, Guangdong, CN;
Abstract
An LED backlight driving circuit includes a first and a second LED strings; a first and a second capacitors; a boosted circuit having an input connected to a power source and an output connected to the first and second capacitors and the first and second LED strings; an LED controller electrically connected to the boosted circuit so as to control, in a first period of an operation cycle, the boosted circuit to supply power to the first branch and to charge the first capacitor and also to supply power to the second branch and to charge the second capacitor; and in a second period, LED controllers controls the boosted circuit to cut off the first and second branches to make the first and second capacitors discharge to the first and second branches, respectively. Also provided is a liquid crystal display that includes the LED backlight driving circuit.