Light emitting display and driving method thereof

Details Light emitting display and driving method thereof Light emitting display and driving method thereof

2005-05-25

2008-08-05

Tran, Thuy Vinh (Department: 2821)

Computer graphics processing and selective visual display system

Plural physical display element control system

Display elements arranged in matrix

C315S169300, C345S082000

Reexamination Certificate

active

07408533

ABSTRACT:
A light emitting display includes pixel circuits capable of compensating for the threshold voltages of their driving transistors. Each pixel circuit includes a driving transistor, a capacitor having one end coupled to a gate electrode of the driving transistor, a first switch coupled between the gate electrode of the driving transistor and a first main electrode, which is turned on in response to a first level of a first control signal for diode-coupling the driving transistor, and a second switch turned on in response to a second level of a second control signal to transmit current flowing out of the first main electrode of the driving transistor to a light emitting element. The second switch is turned on when the first switch is turned on for a first period longer than 0.05 μs and shorter than 2.5 μs. The second switch is turned on when the first switch is turned off.

REFERENCES:
patent: 6989826 (2006-01-01), Kasai
patent: 7202606 (2007-04-01), Eom et al.
patent: 7230592 (2007-06-01), Sato et al.
patent: 2003/0016190 (2003-01-01), Kondo
patent: 2004/0017162 (2004-01-01), Sato et al.
patent: 2004/0145547 (2004-07-01), Oh
patent: 2005/0200575 (2005-09-01), Kim et al.
patent: 2005/0212446 (2005-09-01), Eom
patent: 1496204 (2004-05-01), None
patent: 2002-514320 (2002-05-01), None
patent: 2003-122301 (2003-04-01), None
patent: 2003-173165 (2003-06-01), None
patent: WO 98/48403 (1998-10-01), None
European Search Report dated Nov. 12, 2007, for corresponding European Patent Application EP 07114036.2, indicating relevance of references in the IDS.
Choi, S. et al.,P-II: An Improved Voltage Programmed Pixel Structure for Large Size and High Resolution AM-OLED Displays; SID 04 Digest, vol. 35, PRT 1, May 25, 2004, pp. 260-263, XP001222795.
Patent Abstracts of Japan, Publication No. 2003-122301, dated Apr. 25, 2003, in the name of Hajime Akimoto et al.
Patent Abstracts of Japan, Publication No. 2003-173165, dated Aug. 20, 2003, in the name of Yoshiaki Aoki.

Affiliated with

Also associated with

Rating

Light emitting 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 Light emitting display and driving method thereof, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Light emitting display and driving method thereof will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4012566