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. 02, 2008
Filed:
Dec. 07, 2006
Ming-chun Tseng, Tainan, TW;
Hong-ru Guo, Tainan, TW;
Chien-hsiang Huang, Sinying, TW;
Chi Mei Optoelectronics Corp., Tainan County, TW;
Abstract
An organic light emitting diode circuit of an organic light emitting display with voltage compensation technique includes a first capacitor, a first TFT, a second TFT, a third TFT, a reset circuit and an OLED. The first TFT has a first terminal for receiving a first voltage, and a second terminal coupled to its gate and a first end of the first capacitor. The second TFT has a first terminal for receiving a second reference voltage and a gate coupled to the gate of the first TFT. The third TFT is coupled to the first capacitor and receives a pixel voltage and scan signal. The reset circuit sets the first end of the first capacitor to have a first voltage level. The OLED has an anode coupled to a second terminal of the second TFT and a cathode for receiving a third reference voltage. The first voltage level is smaller than a voltage level of the first reference voltage.