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:
Apr. 24, 2012
Filed:
Jun. 25, 2010
Rie Odawara, Kyoto, JP;
Shinya Ono, Osaka, JP;
Rie Odawara, Kyoto, JP;
Shinya Ono, Osaka, JP;
Panasonic Corporation, Osaka, JP;
Abstract
A display device includes data lines and pixels. Each pixel includes a driving transistor, a switch between one of the data lines and a gate of the driving transistor, and a luminescence element connected to the driving transistor. A first circuit path former flows a first test current from the one of the data lines through the first transistor and a second test current from the one of the data lines through the luminescence element. A second circuit path former generates a first voltage and a second voltage in the one of the data lines. The first voltage corresponds to a gate voltage of the first transistor generated by the first test current. The second voltage corresponds to a luminescence voltage of the luminescence element generated by the second test current. A voltage detector detects the first voltage and the second voltage in the one of the data lines.