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. 10, 2022
Filed:
May. 18, 2021
Sharp Kabushiki Kaisha, Sakai, JP;
Akira Tagawa, Sakai, JP;
Jun Nishimura, Sakai, JP;
SHARP KABUSHIKI KAISHA, Sakai, JP;
Abstract
A display device includes a first display panel with a touch function, a second display panel without a touch function, a first data line drive circuit and a first demultiplexer circuit configured to drive data lines of the first display panel in a time-division manner in accordance with K first control signals, and a second data line drive circuit and a second demultiplexer circuit configured to drive data lines of the second display panel in a time-division manner in accordance with K second control signals. A horizontal period used to drive the first display panel is shorter than a horizontal period used to drive the second display panel, and a length of a period in which each of the first control signals is at a selection level and a length of a period in which each of the second control signals is at a selection level are approximately the same.