Invention Grant
US09570008B2 Pixel circuit, organic light emitting display device having the same, and method of driving an organic light emitting display device
有权
像素电路，具有该像素电路的有机发光显示装置，以及驱动有机发光显示装置的方法
- Patent Title: Pixel circuit, organic light emitting display device having the same, and method of driving an organic light emitting display device
- Patent Title (中): 像素电路，具有该像素电路的有机发光显示装置，以及驱动有机发光显示装置的方法
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Application No.: US14447036Application Date: 2014-07-30
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Publication No.: US09570008B2Publication Date: 2017-02-14
- Inventor: Jae-Hoon Lee
- Applicant: SAMSUNG DISPLAY CO., LTD.
- Applicant Address: KR Yongin, Gyeonggi-do
- Assignee: Samsung Display Co., Ltd.
- Current Assignee: Samsung Display Co., Ltd.
- Current Assignee Address: KR Yongin, Gyeonggi-do
- Agency: Lee & Morse, P.C.
- Priority: KR10-2013-0107729 20130909
- Main IPC: G09G3/325
- IPC: G09G3/325 ; G09G3/32
Abstract:
A pixel circuit of an organic light emitting display device includes an emission unit, an emission control unit, a current supply unit, and a switch unit. The emission unit emits light based on an emission current. The emission control unit controls an emission operation of the emission unit based on a scan signal and a data signal. The current supply unit adjusts the emission current based on a current sinking operation performed based on an external constant current source, where the current supply unit is connected to the external constant current source. The switch unit controls an electrical connection operation between the emission control unit and the current supply unit.
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