Title:
液晶表示装置
Document Type and Number:
Japanese Patent JP3612895
Kind Code:
B2
Abstract:
Two kinds of alternation signals, that is, an alternation signal for odd-numbered electrodes and an alternation signal for even-numbered electrodes, are input to an SEG driver. In accordance with those signals, the SEG driver reverses, at different timings, the polarity of SEG drive signals which are output to odd-numbered signal electrodes and the polarity of SEG drive signals which are output to even-numbered signal electrodes. As a result, spikes are generated before and after the timing of a polarity reversal of an alternation control signal which is input to a COM driver. Further, the SEG driver reverses, at the same timing and in different directions, the polarity of the SEG drive signals which are output to the odd-numbered signal electrodes and the polarity of the SEG drive signals which are output to the even-numbered signal electrodes. By so doing, the crosstalk due to the spikes is reduced.
Inventors:
Koji Yamagishi
Tatsuhiko Yonekawa
Masanori Sakamoto
Takahiro Harada
Tatsuhiko Yonekawa
Masanori Sakamoto
Takahiro Harada
Application Number:
JP28076296A
Publication Date:
January 19, 2005
Filing Date:
October 23, 1996
Export Citation:
Assignee:
CASIO COMPUTER CO.,LTD.
International Classes:
G09G3/36; G02F1/133; (IPC1-7): G02F1/133; G09G3/36
Domestic Patent References:
| JP5249436A | ||||
| JP4009817A | ||||
| JP6202589A | ||||
| JP62137981A |
Attorney, Agent or Firm:
Hiroshi Arafune
Yoshio Arafune
Yoshio Arafune