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:
May. 02, 2023
Filed:
Jan. 13, 2021
Boe Technology Group Co., Ltd., Beijing, CN;
BOE TECHNOLOGY GROUP CO., LTD., Beijing, CN;
Abstract
The present disclosure relates to a display apparatus, a display drive circuit and a driving method of an electronic paper display unit, which relates to the field of display technology. The display drive circuit includes a display control circuit, the display control circuit includes a capacitor unit, a radio frequency circuit, a voltage collection circuit, and a control circuit. The radio frequency circuit includes an induction circuit and a communication circuit. The induction circuit can charge the capacitor unit in response to a radio frequency signal of the terminal device. The collection circuit can collect the voltage of the capacitor unit. The control circuit can perform the transmission action when the voltage of the capacitor unit reaches an operating threshold voltage of the electronic paper display unit; turn off the voltage collection circuit and the communication circuit after the transmission action is completed.