发明授权
US07859268B2 Method of testing driving circuit and driving circuit for display device
失效
显示装置的驱动电路和驱动电路的测试方法
- 专利标题： Method of testing driving circuit and driving circuit for display device
- 专利标题（中）： 显示装置的驱动电路和驱动电路的测试方法
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申请号： US11512351申请日： 2006-08-30
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公开(公告)号： US07859268B2公开(公告)日： 2010-12-28
- 发明人: Noboru Okuzono , Takashi Morigami , Tsukasa Yasuda
- 申请人： Noboru Okuzono , Takashi Morigami , Tsukasa Yasuda
- 申请人地址： JP Kanagawa
- 专利权人： Renesas Electronics Corporation
- 当前专利权人： Renesas Electronics Corporation
- 当前专利权人地址： JP Kanagawa
- 代理机构： Sughrue Mion, PLLC
- 优先权： JP2005-254483 20050902
- 主分类号： G01R31/00
- IPC分类号： G01R31/00 ; G09G3/00
摘要：
A test signal is supplied to a test switch provided between a D/A converter for selecting and outputting a gray scale voltage of the driving circuit and an amplifier for amplifying and supplying an output voltage at the D/A converter to set a test mode, and an output voltage of the D/A converter is directly measured by a measuring device through the test switch to measure an ON resistance of a gray scale voltage selection circuit of the D/A converter.