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1. 发明专利

JP2006189593A Liquid crystal display device 审中-公开
标题翻译：液晶显示装置
公开(公告)号：JP2006189593A
公开(公告)日：2006-07-20
申请号：JP2005001087
申请日：2005-01-06
申请人： Brother Ind Ltd , ブラザー工業株式会社
发明人： ASAI NAOHITO , IRIYAMA YASUHIRO , NOHARA SHUHEI , SUGITA KIYOHITO
IPC分类号： G09G3/36 , G02F1/133 , G09G3/20
摘要： PROBLEM TO BE SOLVED: To provide a liquid crystal display device capable of improving the display quality of a liquid crystal display panel by suppressing a fluctuation in the output voltage level of a liquid crystal driving power source circuit due to a high-frequency component generated by a timing generation circuit even if impedance resistance is increased by each wiring resistance by ITC wiring.
SOLUTION: A first feedback resistor Rb electrically connected at one end side to an output terminal of an operational amplifier 21 and a second feedback resistor Ra connected to the other end side of the first feedback resistor Rb to constitute a series circuit, and a capacitor C2 connected in parallel to the first feedback resistor Rb are arranged in a driving voltage adjustment circuit 4. Also, the resistance value of the second feedback resistor Ra is set smaller than that of the first feedback resistor Rb. An inversion input terminal of the operational amplifier 21 is connected to the connection point of the first feedback resistor Rb and the second feedback resistor Ra.
COPYRIGHT: (C)2006,JPO&NCIPI
摘要翻译：解决的问题：提供一种能够通过抑制由于高频而导致的液晶驱动电源电路的输出电压的波动而能够提高液晶显示面板的显示质量的液晶显示装置即使通过ITC布线的每个布线电阻来阻抗阻抗增加，也由定时产生电路产生的分量。解决方案：将一端侧电连接到运算放大器21的输出端的第一反馈电阻Rb和与第一反馈电阻Rb的另一端连接的第二反馈电阻Ra构成串联电路，以及在驱动电压调节电路4中配置并联连接到第一反馈电阻器Rb的电容器C2。另外，第二反馈电阻器Ra的电阻值被设定为小于第一反馈电阻器Rb的电阻值。运算放大器21的反相输入端子连接到第一反馈电阻器Rb和第二反馈电阻器Ra的连接点。版权所有（C）2006，JPO＆NCIPI

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