发明授权
US08237691B2 Display driver circuit and DAC of a display device with partially overlapping positive and negative voltage ranges and reduced transistor breakdown voltage
失效
显示器件的显示驱动电路和DAC具有部分重叠的正负电压范围和降低的晶体管击穿电压
- 专利标题： Display driver circuit and DAC of a display device with partially overlapping positive and negative voltage ranges and reduced transistor breakdown voltage
- 专利标题（中）： 显示器件的显示驱动电路和DAC具有部分重叠的正负电压范围和降低的晶体管击穿电压
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申请号： US12167263申请日： 2008-07-03
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公开(公告)号： US08237691B2公开(公告)日： 2012-08-07
- 发明人: Kazuo Nakamura
- 申请人： Kazuo Nakamura
- 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： Young & Thompson
- 优先权： JP2007-176105 20070704
- 主分类号： G06F3/038
- IPC分类号： G06F3/038
摘要：
A display driver circuit of a display device includes: a first DA converter for converting a digital data to a gray-scale potential within a first potential range; and a second DA converter for converting a digital data to a gray-scale potential within a second potential range lower than the first potential range. The first DA converter includes a first transistor of a first conductivity type outputting a gray-scale potential not less than the common potential. The second DA converter includes: a second transistor of the first conductivity type outputting a gray-scale potential not less than the common potential; and a third transistor of a second conductivity type outputting a gray-scale potential not more than the common potential. A substrate potential applied to a back gate of the second transistor is lower than a substrate potential applied to a back gate of the first transistor.
公开/授权文献
- US20090009538A1 DISPLAY DRIVER CIRCUIT OF DISPLAY DEVICE 公开/授权日：2009-01-08
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