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Patent Searching and Data


Title:
DRIVING CIRCUIT FOR LIQUID CRYSTAL DISPLAY DEVICE
Document Type and Number:
Japanese Patent JP2004138969
Kind Code:
A
Abstract:

To provide an LCD (Liquid Crystal Display) driving circuit for dynamically driving one LCD by first and second LCD drivers in such a manner that streak lines are not displayed at the boundary between first and second display elements display-driven by the first and second LCD drivers.

The LCD 300 is display-driven by the first LCD driver built in a microcomputer 100 and the second LCD driver 200 controlled by the microcomputer 100. Also, the LCD is provided with a switching circuit 400 which stops power supply to the second LCD driver 200. When a reset command is sent from the second LCD driver 200 to the LCD 300 and the microcomputer 100 is put into a sleep state after the display driving by the second driver 200 is stopped, the microcomputer 100 controls the switching circuit 400 to stop the power supply to the second LCD driver 200.


Inventors:
MIYAGE KATSUYUKI
Application Number:
JP2002305867A
Publication Date:
May 13, 2004
Filing Date:
October 21, 2002
Export Citation:
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Assignee:
DENSO CORP
International Classes:
G02F1/133; G09G3/04; G09G3/18; (IPC1-7): G09G3/18; G02F1/133; G09G3/04
Attorney, Agent or Firm:
Yoji Ito
Takahiro Miura
Fumihiro Mizuno