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. 23, 2010
Filed:
Jan. 12, 2007
Yu-wen Chiou, Sinshih Township, Tainan County, TW;
Chin-tien Chang, Sinshih Township, Tainan County, TW;
Hong-ru Guo, Tainan Science-Based Industrial Park, TW;
Yu-Wen Chiou, Sinshih Township, Tainan County, TW;
Chin-Tien Chang, Sinshih Township, Tainan County, TW;
Hong-Ru Guo, Tainan Science-Based Industrial Park, TW;
Himax Technologies Limited, Tainan County, TW;
Chi Mei El, Tainan Science-Based Industrial Park, TW;
Abstract
An OLED display and pixel circuit thereof are provided. The pixel circuit includes first and second switches, first and second PMOS transistors, a capacitor and an OLED. The first switch, controlled by a first scan signal, has a first end receiving a data signal and a second end. The second switch, controlled by a second scan signal, has a third end coupled to the second end and a fourth end. The first PMOS transistor has a source coupled to a high voltage, a drain coupled to the fourth end and a gate coupled to the second end. The second PMOS transistor has a gate coupled to the second end and a source coupled to the high voltage. The capacitor is coupled to the gate of the first PMOS transistor and the high voltage. The OLED has a positive end coupled to a drain of the second PMOS transistor.