Invention Grant
US08564512B2 Pixel circuit for driving transistor threshold voltage compensation and organic electroluminescent display apparatus using the same 有权
用于驱动晶体管阈值电压补偿的像素电路和使用其的有机电致发光显示装置

  • Patent Title: Pixel circuit for driving transistor threshold voltage compensation and organic electroluminescent display apparatus using the same
  • Patent Title (中): 用于驱动晶体管阈值电压补偿的像素电路和使用其的有机电致发光显示装置
  • Application No.: US12832924
    Application Date: 2010-07-08
  • Publication No.: US08564512B2
    Publication Date: 2013-10-22
  • Inventor: Kyung-Hoon Chung
  • Applicant: Kyung-Hoon Chung
  • Applicant Address: KR Yongin-si
  • Assignee: Samsung Display Co., Ltd.
  • Current Assignee: Samsung Display Co., Ltd.
  • Current Assignee Address: KR Yongin-si
  • Agency: Christie, Parker & Hale, LLP
  • Priority: KR10-2009-0110362 20091116
  • Main IPC: G09G3/32
  • IPC: G09G3/32
Pixel circuit for driving transistor threshold voltage compensation and organic electroluminescent display apparatus using the same
Abstract:
An improved pixel circuit including N-type transistors is provided. The pixel circuit includes a light emitting device driven by a driving current according to a gate voltage of a driving transistor. The pixel circuit also includes a first capacitor, a second transistor for transferring a data signal to a first terminal of the first capacitor in response to a scan control signal, a third transistor for diode-connecting the driving transistor in response to the scan control signal, a fourth transistor for applying a first power voltage to a first electrode of the driving transistor in response to an emission control signal, a fifth transistor for applying a sustain voltage to the first terminal of the first capacitor in response to the emission control signal, and a sixth transistor for applying the first power voltage to a second terminal of the first capacitor in response to an initialization control signal.
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