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:
Mar. 17, 2020
Filed:
Mar. 22, 2018
Seiko Epson Corporation, Tokyo, JP;
Toshimichi Yamada, Chino, JP;
SEIKO EPSON CORPORATION, Tokyo, JP;
Abstract
This driving circuit includes a data line driving circuit that supplies a gray-scale signal to a plurality of data lines, a regulator that stabilizes a supplied power supply voltage and supplies the stabilized power supply voltage to a smoothing capacitor and the data line driving circuit, a switching circuit that switches the connection state of a plurality of circuit elements that constitute the regulator, and a control circuit that controls the switching circuit. The control circuit controls the switching circuit so as to set voltage stabilization capability of the regulator to a predetermined level when the gray-scale signal is supplied to pixel elements, and controls the switching circuit so as to set the voltage stabilization capability of the regulator to a level lower than the predetermined level or to stop an operation of the regulator, when the gray-scale signal is not supplied to the pixel elements.