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. 16, 2021
Filed:
Jan. 25, 2019
Seiko Epson Corporation, Tokyo, JP;
Akira Morita, Chino, JP;
SEIKO EPSON CORPORATION, Tokyo, JP;
Abstract
A display driver includes a driving circuit including an amplifier circuit and configured to cause the amplifier circuit to output a data voltage corresponding to display data, a reference voltage generation circuit configured to generate a reference voltage supplied to a reference current source of the amplifier circuit and output the reference voltage to an output node, and a setting circuit configured to set a voltage of the output node of the reference voltage generation circuit. The setting circuit includes a capacitor having one end connected with the output node, and a control circuit configured to control a voltage of another end of the capacitor based on an enable signal to change a voltage of the output node from a first voltage at which a reference current flowing in the reference current source is off, toward the reference voltage.