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:
Jul. 26, 2022
Filed:
Nov. 16, 2021
Sharp Kabushiki Kaisha, Sakai, JP;
Daiji Kitagawa, Sakai, JP;
Noriyuki Tanaka, Sakai, JP;
Jin Miyazawa, Sakai, JP;
Yousuke Nakamura, Sakai, JP;
Daisuke Suehiro, Sakai, JP;
SHARP KABUSHIKI KAISHA, Sakai, JP;
Abstract
In a memory liquid crystal display including a liquid crystal panel with a built-in touch panel, a black voltage or a white voltage is provided to a pixel electrode in accordance with a value of binary data stored in a memory circuit, and a display voltage generation circuit changes voltage values of the black voltage and the white voltage in synchronization with a continuous pulse voltage for touch detection in a touch detection period so that an absolute value of a voltage between the pixel electrode and a common electrode is maintained at a constant magnitude in each pixel circuit throughout a period from a point in time immediately before the start of the touch detection period to a point in time immediately after the end of the touch detection period.