JPS5474330A - Dynamic driving method for liquid crystal - Google Patents

Dynamic driving method for liquid crystal

Info

Publication number
JPS5474330A
JPS5474330A JP14297277A JP14297277A JPS5474330A JP S5474330 A JPS5474330 A JP S5474330A JP 14297277 A JP14297277 A JP 14297277A JP 14297277 A JP14297277 A JP 14297277A JP S5474330 A JPS5474330 A JP S5474330A
Authority
JP
Japan
Prior art keywords
interval
signal
counter
apply
liquid
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP14297277A
Other languages
Japanese (ja)
Inventor
Takao Shoda
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tokyo Sanyo Electric Co Ltd
Sanyo Electric Co Ltd
Original Assignee
Tokyo Sanyo Electric Co Ltd
Sanyo Electric Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Tokyo Sanyo Electric Co Ltd, Sanyo Electric Co Ltd filed Critical Tokyo Sanyo Electric Co Ltd
Priority to JP14297277A priority Critical patent/JPS5474330A/en
Publication of JPS5474330A publication Critical patent/JPS5474330A/en
Pending legal-status Critical Current

Links

Landscapes

  • Liquid Crystal (AREA)
  • Liquid Crystal Display Device Control (AREA)

Abstract

PURPOSE: To make it possible to vary and apply an effective voltage corresponding to characteristics of a liquid-crystal plate, by providing a zero bias interval as long as any interval within the one period of the driving waveform of liquid crystal.
CONSTITUTION: Counter 1 counts clock pulse CP to make an interval of 1/4T, and its contents are applied to digital comparator 2. Form when the contents set by preset circuit 3 agree with those of counter 1 until when counter 1 completes the counting for an interval of 1/4T. digital comparator 2 outputs a signal to digit driver circuit 4 and segment driver circuit 5, which apply driving voltages equivalent to digital signal SD and segment signal SS to each electrode of liquid-crystal display board 6, and apply voltages as a zero bias interval to each electrode when comparator 2 outputs no signal.
COPYRIGHT: (C)1979,JPO&Japio
JP14297277A 1977-11-25 1977-11-25 Dynamic driving method for liquid crystal Pending JPS5474330A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP14297277A JPS5474330A (en) 1977-11-25 1977-11-25 Dynamic driving method for liquid crystal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP14297277A JPS5474330A (en) 1977-11-25 1977-11-25 Dynamic driving method for liquid crystal

Publications (1)

Publication Number Publication Date
JPS5474330A true JPS5474330A (en) 1979-06-14

Family

ID=15327931

Family Applications (1)

Application Number Title Priority Date Filing Date
JP14297277A Pending JPS5474330A (en) 1977-11-25 1977-11-25 Dynamic driving method for liquid crystal

Country Status (1)

Country Link
JP (1) JPS5474330A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0315023A (en) * 1989-06-13 1991-01-23 Sharp Corp Liquid crystal driving circuit

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0315023A (en) * 1989-06-13 1991-01-23 Sharp Corp Liquid crystal driving circuit

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