Invention Grant
US09117407B2 Pixel circuit, method of driving the same, and organic light emitting display device having the same 有权
像素电路,其驱动方法以及具有该像素电路的有机发光显示装置

  • Patent Title: Pixel circuit, method of driving the same, and organic light emitting display device having the same
  • Patent Title (中): 像素电路,其驱动方法以及具有该像素电路的有机发光显示装置
  • Application No.: US13529515
    Application Date: 2012-06-21
  • Publication No.: US09117407B2
    Publication Date: 2015-08-25
  • Inventor: Tae-Jin Kim
  • Applicant: Tae-Jin Kim
  • Applicant Address: KR Giheung-Gu, Yongin, Gyeonggi-Do
  • Assignee: Samsung Display Co., Ltd.
  • Current Assignee: Samsung Display Co., Ltd.
  • Current Assignee Address: KR Giheung-Gu, Yongin, Gyeonggi-Do
  • Agent Robert E. Bushnell, Esq.
  • Priority: KR10-2012-0008159 20120127
  • Main IPC: G09G3/30
  • IPC: G09G3/30 G09G3/32 G09G3/36
Pixel circuit, method of driving the same, and organic light emitting display device having the same
Abstract:
A method of driving a pixel circuit includes initializing a driving transistor and a storage capacitor by simultaneously applying an initialization voltage and a first power voltage to a gate electrode of the driving transistor and the storage capacitor, respectively, diode-coupling the driving transistor, applying a data voltage to the storage capacitor, applying the data voltage to the gate electrode of the driving transistor by a coupling of a compensation capacitor coupled between the gate electrode of the driving transistor and the storage capacitor, and applying a current corresponding to the first power voltage and the data voltage to an organic light emitting diode that is coupled to the driving transistor.
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