发明授权
US07250941B2 Timing generation circuit, display apparatus, and portable terminal
有权
定时发生电路,显示装置和便携式终端
- 专利标题: Timing generation circuit, display apparatus, and portable terminal
- 专利标题(中): 定时发生电路,显示装置和便携式终端
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申请号: US10484994申请日: 2003-05-06
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公开(公告)号: US07250941B2公开(公告)日: 2007-07-31
- 发明人: Yoshitoshi Kida , Yoshiharu Nakajima , Toshikazu Maekawa
- 申请人: Yoshitoshi Kida , Yoshiharu Nakajima , Toshikazu Maekawa
- 申请人地址: JP Tokyo
- 专利权人: Sony Corporation
- 当前专利权人: Sony Corporation
- 当前专利权人地址: JP Tokyo
- 代理机构: Rockey, Depke, Lyons & Kitzinger LLC.
- 代理商 Robert J. Depke
- 优先权: JP2002-157053 20020530
- 国际申请: PCT/JP03/06522 WO 20030506
- 国际公布: WO03/102906 WO 20031211
- 主分类号: G09G5/00
- IPC分类号: G09G5/00
摘要:
A timing generating circuit with low power consumption and a small layout area, a display apparatus including the timing generating circuit as one peripheral driving circuit, and a portable terminal including the display apparatus as a display output section are provided. In the timing generating circuit, which is formed on an insulating substrate and generates output pulses SRFF1out to SRFFnout having different frequencies based on a master clock MCK, a clock generating circuit (11) generates an operating clock having a lower frequency than the master clock MCK frequency. Then, a counter section (12) operates based on this operating clock and successively outputs shifted pulses S/R1out to S/Rmount from shift registers (121-1) to (121-m). An output pulse generating section (13) generates output pulses SF1out to SFnout based on combinations of the shifted pulses S/R1out to S/Rmount.