Invention Grant
US07920119B2 Drive circuit for electro-optical apparatus, method of driving electro-optical apparatus, electro-optical apparatus, and electronic system 失效
电光装置的驱动电路,电光装置的驱动方法,电光装置和电子系统

  • Patent Title: Drive circuit for electro-optical apparatus, method of driving electro-optical apparatus, electro-optical apparatus, and electronic system
  • Patent Title (中): 电光装置的驱动电路,电光装置的驱动方法,电光装置和电子系统
  • Application No.: US11571304
    Application Date: 2005-07-08
  • Publication No.: US07920119B2
    Publication Date: 2011-04-05
  • Inventor: Kenya Ishii
  • Applicant: Kenya Ishii
  • Applicant Address: JP Tokyo
  • Assignee: Seiko Epson Corporation
  • Current Assignee: Seiko Epson Corporation
  • Current Assignee Address: JP Tokyo
  • Agency: Oliff & Berridge, PLC
  • Priority: JP2004-203254 20040709; JP2005-142188 20050516
  • International Application: PCT/JP2005/013110 WO 20050708
  • International Announcement: WO2006/006699 WO 20060119
  • Main IPC: G09G3/36
  • IPC: G09G3/36
Drive circuit for electro-optical apparatus, method of driving electro-optical apparatus, electro-optical apparatus, and electronic system
Abstract:
At least one of a scanning-line drive part and a data-line drive part includes: a shift register for outputting transfer signals in sequence; a first enable supply line for supplying a plurality of series of first enable signals having a first pulse width smaller than that of the transfer signals; a second enable supply line for supplying one series of second enable signal having a second pulse width smaller than the first pulse width; and pulse-width restricting circuits for receiving input of the transfer signals, the first and the second enable signals. The pulse-width restricting circuits restricts the pulse width of the transfer signals to the first pulse width by shaping each pulse of the input transfer signals based on the individual first enable signals, and restricts the pulse width of the transfer signals to the second pulse width by shaping all the pulses of the transfer signals after restricted to the first pulse width based on the second enable signal.
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