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. 07, 2020
Filed:
Sep. 20, 2017
Sharp Kabushiki Kaisha, Sakai, Osaka, JP;
SHARP KABUSHIKI KAISHA, Sakai, Osaka, JP;
Abstract
Provided is a video signal line driver circuit capable of displaying a video with a high viewing quality even when gradation voltages of the same value are simultaneously selected as analog video signals. A voltage ladderof a source driverhas formed therein gradation voltage supplement linesextending to the outside of the source driverfrom output terminals for outputting generated gradation voltages. The gradation voltage supplement linesare grounded outside the source drivervia voltage supplement capacitors. Accordingly, even when gradation voltages of the same value are simultaneously selected as analog video signals, the voltage supplement capacitorsprovide necessary current supplement to the voltage ladder, thereby inhibiting potential drop across the output terminals for outputting gradation voltages.