Invention Grant
- Patent Title: Light emitting display device capable of minimizing a current driving capability deviation among driving switching elements
- Patent Title (中): 能够最小化驱动开关元件之间的电流驱动能力偏差的发光显示装置
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Application No.: US13726244Application Date: 2012-12-24
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Publication No.: US09153158B2Publication Date: 2015-10-06
- Inventor: Ji-Hun Kim , Jong-Sik Shim , Min-Kyu Chang
- Applicant: LG Display Co., Ltd.
- Applicant Address: KR Seoul
- Assignee: LG Display Co., Ltd.
- Current Assignee: LG Display Co., Ltd.
- Current Assignee Address: KR Seoul
- Agency: Fenwick & West LLP
- Priority: KR10-2011-0142422 20111226
- Main IPC: G09G3/20
- IPC: G09G3/20 ; G09G3/32

Abstract:
Disclosed is a light emitting display device capable of minimizing a current driving capability deviation among driving switching elements. The light emitting display device includes pixels each including a first TFT for supplying data voltage to a first node in response to a scan signal, a second TFT for forming a current path between first and second nodes in response to an emission control signal, a driving TFT for forming a current path between a first driving voltage supply line and a third node in accordance with a voltage level of the second node, a third TFT for supplying a reference voltage to a fourth node in response to a sensing signal, a fourth TFT for supplying an initialization voltage to the third node in response to an initialization signal, and a fifth TFT for supplying the reference voltage to the second node in response to the initialization signal.
Public/Granted literature
- US20130162620A1 LIGHT EMITTING DISPLAY DEVICE Public/Granted day:2013-06-27
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