Invention Grant
US07800564B2 Display apparatus and driving method thereof 有权
显示装置及其驱动方法

  • Patent Title: Display apparatus and driving method thereof
  • Patent Title (中): 显示装置及其驱动方法
  • Application No.: US10550950
    Application Date: 2003-10-31
  • Publication No.: US07800564B2
    Publication Date: 2010-09-21
  • Inventor: Takaji Numao
  • Applicant: Takaji Numao
  • Applicant Address: JP Osaka
  • Assignee: Sharp Kabushiki Kaisha
  • Current Assignee: Sharp Kabushiki Kaisha
  • Current Assignee Address: JP Osaka
  • Agency: Harness, Dickey & Pierce, P.L.C.
  • Priority: JP2003-092534 20030328; JP2003-204018 20030730; JP2003-366130 20031027
  • International Application: PCT/JP03/14042 WO 20031031
  • International Announcement: WO2004/088623 WO 20041014
  • Main IPC: G09G3/32
  • IPC: G09G3/32
Display apparatus and driving method thereof
Abstract:
A switching transistor 3 is provided between a gate terminal of a driving TFT 1 and a drain terminal thereof. A first capacitor 2 is provided between the gate terminal of the driving TFT 1 and a source terminal thereof. The current control terminal of the driving TFT 1 is connected to a first terminal of a second capacitor 7. A second terminal of the second capacitor 7 is connected to the drain terminal of the driving TFT 1 via a switching transistor 9, and to a predetermined voltage line Va via a switching transistor 8. This allows restraint of variation of a current flowing, during a non-selection period, through a current driving light emitting element of a display apparatus, the current variation being caused by threshold voltage variation and mobility variation of the driving TFT. A specific example of the display apparatus including such a current driving light emitting element is an organic EL display apparatus.
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