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. 18, 2025
Filed:
Feb. 29, 2024
Seiko Epson Corporation, Tokyo, JP;
Hitoshi Ota, Shiojiri, JP;
SEIKO EPSON CORPORATION, Tokyo, JP;
Abstract
A DA converter circuit includes an upper DA converter circuit that includes a first capacitance element including one end coupled to a data line and that outputs a voltage corresponding to five high-order bits to the data line, a lower DA converter circuit that includes a second capacitance element including one end coupled to a relay line and that outputs a voltage corresponding to five low-order bits to the relay line, and a capacitor including one end coupled to the relay line and the other end coupled to the data line. In the first capacitance element, an insulating layer is sandwiched between a first electrode and a second electrode. In the second capacitance element, an insulating layer is sandwiched between a third electrode and a fourth electrode. The insulating layer of the first capacitance element is thicker than the insulating layer of the second capacitance element.