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Title:
DRIVER FOR LIQUID CRYSTAL DISPLAY
Document Type and Number:
Japanese Patent JPS5843494
Kind Code:
A
Abstract:
A drive circuit is used to drive a data matrix liquid crystal display panel that can be applied to a variety of uses wherein said drive circuit either generates the backplate signal using any optional sequence or optionally provides any desired duty factor. The drive circuit chip itself contains RAM, and in responding to the data contents in said RAM, both the backplate and segment signals are generated, where the drive circuit provides any desired sequence that can optionally be determined in accordance with the RAM data contents. As an alternative embodiment of the present invention, the drive circuit chip comprises a built-in counter that determines the duty factor of the liquid crystal enable signals, where the duty factor can optionally be set by varying the operational conditions of said counter.

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Inventors:
FUKUMA YOSHITAKA
NAKANISHI TOUSAKU
Application Number:
JP14303881A
Publication Date:
March 14, 1983
Filing Date:
September 09, 1981
Export Citation:
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Assignee:
SHARP KK
International Classes:
G02F1/133; G09G3/36; (IPC1-7): G09G3/36
Domestic Patent References:
JPS55143592A1980-11-08
Attorney, Agent or Firm:
Nishida Arata



 
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