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:
Jan. 24, 2017
Filed:
Mar. 18, 2016
Applicant:
Global Oled Technology Llc, Herndon, VA (US);
Inventor:
Kazuyoshi Kawabe, Tokyo, JP;
Assignee:
Global OLED Technology LLC, Herndon, VA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G09G 3/30 (2006.01); G09G 3/20 (2006.01); G09G 3/00 (2006.01); G09G 3/32 (2016.01);
U.S. Cl.
CPC ...
G09G 3/2092 (2013.01); G09G 3/00 (2013.01); G09G 3/3233 (2013.01); G09G 2300/0819 (2013.01); G09G 2300/0842 (2013.01); G09G 2300/0861 (2013.01); G09G 2320/0233 (2013.01); G09G 2330/021 (2013.01);
Abstract
An EL light-emitting element is driven digitally to reduce power consumption using a pixel having three transistors and two capacitors. A reset transistor for diode connection writes the threshold voltage of the drive transistor onto a coupling capacitor. The data voltage plus threshold voltage is then written onto the gate of the drive transistor. This reduces the amplitude of the data voltage required, further reducing power consumption.