发明名称 |
LIQUID CRYSTAL DISPLAY DEVICE |
摘要 |
PURPOSE: To provide a liquid crystal display device which can improve display quality by compensating variation in a duty ratio of a clock signal inputted to a liquid crystal driving circuit, and enabling it to normally take in a video signal. CONSTITUTION: The liquid crystal display device is provided with a liquid crystal element and a liquid crystal driving circuit, and the liquid crystal driving circuit fetches a video signal inputted to the liquid crystal driving circuit into a bus at the timing of changing over from a 1st level to a 2nd level of an internal clock signal or at the timing of changing over from the 2nd level to the 1st level, and selects a voltage to drive the liquid crystal element from video signals taken into the bus, and the internal clock signal is a clock signal which is uniformalized to a prescribed value for both of the 1st and 2nd level periods of an external clock signal inputted to the liquid crystal driving circuit by a clock compensating circuit.
|
申请公布号 |
KR20020003275(A) |
申请公布日期 |
2002.01.12 |
申请号 |
KR20010027111 |
申请日期 |
2001.05.18 |
申请人 |
HITACHI DEVICE ENGINEERING CO., LTD.;HITACHI.LTD. |
发明人 |
FUJIOKA TAKAHIRO;GOTO MITSURU;ITO SHIGERU;NAKAYASU YOZO;SAITO YOSHIYUKI |
分类号 |
G02F1/133;G09G3/20;G09G3/36;G09G5/18;H04N5/66;(IPC1-7):G09G3/36 |
主分类号 |
G02F1/133 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|