Computer graphics processing and selective visual display system – Plural physical display element control system – Display elements arranged in matrix
Reexamination Certificate
2002-09-19
2008-10-28
Eisen, Alexander (Department: 2629)
Computer graphics processing and selective visual display system
Plural physical display element control system
Display elements arranged in matrix
C345S082000
Reexamination Certificate
active
07443366
ABSTRACT:
A pixel circuit of an organic EL display includes an EL device, first and second switching devices, a driving thin film transistor, and a capacitor.The first switching device switches data voltages applied to data lines in response to the selection signal applied to a scan line and the second switching device connects gate and drain of the driving thin film transistor in response to a compensation signal applied to a compensation line. The driving thin film transistor supplies electric current to the organic EL device in response to the data voltage inputted to a gate from the first switching device and the capacitor maintains the data voltage applied to the gate of the driving thin film transistor for a predetermined period. At this time, the characteristic deviation of the transistor is compensated by connecting the gate and the drain of the driving thin film transistor by applying the compensation signal to the compensation line before applying the data voltage, and then the data voltages are applied to the data lines after cutting off the compensation signal. In this manner, the characteristic deviation of the driving thin film transistors can be compensated.
REFERENCES:
patent: 6229506 (2001-05-01), Dawson et al.
patent: 2002/0196213 (2002-12-01), Akimoto et al.
patent: 1020000071301 (2000-11-01), None
patent: 1020010020114 (2001-03-01), None
patent: 1020010055654 (2001-07-01), None
patent: WO 98/48403 (1998-10-01), None
patent: WO 99/48078 (1999-09-01), None
D Fish, N Young, M Childs, W Steer, et. al, A Comparison Of Pixel Circuits for Active Matrix Polymer/Organic LED Displays, May 2002, SID Symposium Digest Of Technical Papers vol. 32, Issue 1, pp. 968-971.
RMA Dawson, MG Kanem Pursuit of Active Matrix Organic Light Emitting Diode Displays, Jun. 2001, SID Symposium Digest Of Technical Papers vol. 32, Issue 1, pp. 372-375.
Chae Chong-Chul
Choi Beohm-Rak
Choi Joon-Hoo
Min Woong-Kyu
Shin Kyong-Ju
Almeida Cory A
Eisen Alexander
F. Chau & Associates LLC
Samsung Electronics Co,. Ltd.
LandOfFree
Organic electroluminescent display and driving method thereof does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Organic electroluminescent display and driving method thereof, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Organic electroluminescent display and driving method thereof will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4004654