IP Library Granted Patent US 8,400,378
Granted Patent B2
US 8,400,378 · App. 13/415,462 · Granted Mar 19, 2013

Electro-luminescence pixel, panel with the pixel, and device and method for driving the panel

Inventors: In Hwan Kim (Seoul, KR); Seung Chan Byun (Seoul, KR); Jin Chul Choi (Gunpo-si, KR); Jin Hyoung Kim (Goyang-si, KR); Sang Keun Lee (Seoul, KR)
Assignee: LG Display Co., Ltd.
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Quick Facts
Patent No.
US 8,400,378
App. No.
13/415,462
Granted
Mar 19, 2013
Kind
B2
Abstract

An electro-luminescence display having a plurality of pixels is disclosed. One of the pixels of the electro-luminescence display includes an electro-luminescence diode electrically connected between first and second voltage sources; first and second thin film transistors adjusting an amount of current flowing to the electro-luminescence diode; and a control circuit complementarily operating the first and second thin film transistors in an active mode and a refresh mode.

Claims (12)

1. An electro-luminescence display having a plurality of pixels, one of the pixels of the display comprising:

an electro-luminescence diode electrically connected between first and second voltage sources;

first and second thin film transistors adjusting an amount of current flowing to the electro-luminescence diode; and

a control circuit complementarily operating the first and second thin film transistors in an active mode and a refresh mode,

wherein the control circuit includes a first control node electrically connected to a gate electrode of the first thin film transistor and a first storage capacitor, and a second control node electrically connected to a gate electrode of the second thin film transistor and a second storage capacitor.

2. The display according to claim 1 , wherein the first and second thin film transistors are complementarily operated on a frame-by-frame basis.

3. The display according to claim 1 , wherein the control circuit further includes a signal input unit complementarily applying a driving voltage to the first and second control nodes.

4. The display according to claim 3 , wherein the signal input unit includes:

first and second data lines complementarily transmitting a data signal and a refresh signal;

a first switching transistor electrically connected between the first data line and the first control node; and

a second switching transistor electrically connected between the second data line and the second control node.

5. The display according to claim 4 , wherein the signal input unit further includes a gate line applying a scan signal to gate electrodes of the first and second switching transistors.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Mar 8, 2012
From: KIM, IN HWAN; BYUN, SEUNG CHAN; CHOI, JIN CHUL; KIM, JIN HYOUNG; LEE, SANG KEUN
To: LG.PHILIPS LCD CO., LTD.
Reel/Frame 027829/0168 →
CHANGE OF NAME Recorded Mar 8, 2012
From: LG.PHILIPS LCD CO., LTD.
To: LG DISPLAY CO., LTD.
Reel/Frame 027834/0152 →
Priority Claims (1)
KR 10-2006-0138744 · Dec 29, 2006 · national
Continuity (2)
Division 12005625 · Dec 28, 2007
Related Publication 20120162052A1 · Jun 28, 2012