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:
Feb. 11, 2014
Filed:
Feb. 16, 2009
Seiji Ohhashi, Osaka, JP;
Seiji Ohhashi, Osaka, JP;
Sharp Kabushiki Kaisha, Osaka, JP;
Abstract
A display device has a pixel circuit () including: a drive element () provided on a path connecting a first wiring line (Vp) to a second wiring line (Vcom), having a control terminal, a first terminal, and a second terminal, and controlling a current flowing through the path; an electro-optic element () provided in series with the drive element () on the path, being connected to the first terminal of the drive element (), and emitting light at a luminance according to the current flowing through the path; a first switching element () provided between the first terminal of the drive element () and a data line (Sj); a second switching element () provided between the control terminal and the second terminal of the drive element (); a third switching element () provided between the second terminal of the drive element () and the first wiring line (Vp); and a capacitor () provided between the control terminal of the drive element () and a third wiring line (Ui). In the display device, a potential at which a voltage applied to the electro-optic element () is a light-emission threshold voltage or less is provided to the data line (Sj), and a potential of the third wiring line (Ui) changes in two levels.