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. 22, 2024
Filed:
Nov. 20, 2023
Mianyang Hkc Optoelectronics Technology Co., Ltd., Mianyang, CN;
Hkc Corporation Limited, Shenzhen, CN;
Tao Fan, Mianyang, CN;
Haijiang Yuan, Mianyang, CN;
Mianyang HKC Optoelectronics Technology Co., Ltd., Shenzhen, CN;
HKC CORPORATION LIMITED, Shenzhen, CN;
Abstract
The pixel driving circuit includes a sequential control unit, a first switch unit, a second switch unit, and a power supply unit. The power supply unit provides a constant driving voltage. In one control period, a voltage difference between a first electrode and a second electrode of the electrowetting pixel device is flipped to prevent the first electrode and the second electrode of the electrowetting pixel device from problems of charge trapping and ink splitting due to charge accumulation.