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:
Dec. 16, 2014
Filed:
Apr. 09, 2010
Takashi Miyazawa, Hokuto, JP;
Takashi Miyazawa, Hokuto, JP;
Intellectual Keystone Technology LLC, Wilmington, DE (US);
Abstract
At a writing time, a first transistoris turned on so that a data signal Xj is supplied to one end of a capacitor. At this time, since a second transistoris turned off, driving current does not flow to an organic light emitting diode (OLED) device. A power supply voltage Vdd is supplied to the other end of a capacitor through a power supply line L. However, since the driving current does not flow at the writing time, the power supply voltage Vdd is not reduced by the wiring line resistance of the power supply line L. On the other hand, at an emission time, the first transistoris turned off and the second transistoris turned on. Therefore, the driving current is supplied to the OLED device