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:
Mar. 24, 2017
Sharp Kabushiki Kaisha, Sakai, JP;
Tetsuya Ueno, Sakai, JP;
Asahi Yamato, Sakai, JP;
SHARP KABUSHIKI KAISHA, Sakai, JP;
Abstract
The present application discloses an organic EL display device adopting the SSD method, which enables sufficient charging with a data voltage and sufficient internal compensation in a pixel circuit even in a case that a display image has a higher resolution. There are provided m demultiplexers corresponding to m sets of data signal line groups, each of which is a set including k data signal lines (in this case, k=3). Each demultiplexer turns selection control signals to a low level (active) during a rest period before a scanning signal line is selected. In this case, a white voltage is supplied as a reset voltage from a data-side drive circuit to each data signal line via each demultiplexer. After that, each demultiplexer sequentially turns the selection control signals to an active state for a predetermined period such that the select control signal turns to the active state during the select period for the scanning signal line. With this, the data signals are sequentially supplied from the data-side drive circuit to the k data signal lines.