JPS6478233A - Liquid crystal driving method - Google Patents

Liquid crystal driving method

Info

Publication number
JPS6478233A
JPS6478233A JP23365487A JP23365487A JPS6478233A JP S6478233 A JPS6478233 A JP S6478233A JP 23365487 A JP23365487 A JP 23365487A JP 23365487 A JP23365487 A JP 23365487A JP S6478233 A JPS6478233 A JP S6478233A
Authority
JP
Japan
Prior art keywords
liquid crystal
pac
contrast ratio
driving mode
driving
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
JP23365487A
Other languages
Japanese (ja)
Inventor
Akihiro Mochizuki
Toshiaki Yoshihara
Masayuki Iwasaki
Yasuo Yamagishi
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.)
Fujitsu Ltd
Original Assignee
Fujitsu 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 Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP23365487A priority Critical patent/JPS6478233A/en
Publication of JPS6478233A publication Critical patent/JPS6478233A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/13306—Circuit arrangements or driving methods for the control of single liquid crystal cells

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Liquid Crystal (AREA)

Abstract

PURPOSE:To obtain a liquid crystal driving method which improves a contrast ratio while maintaining a high response and large capacity display by impressing a high-frequency voltage to a liquid crystal in PAC driving mode. CONSTITUTION:The high-frequency voltage of the region where the dielectric constant anisotropy DELTAepsilon of the liquid crystal is negative (DELTAepsilon=epsilon11-epsilon<0) is impressed in superposition to the writing pulses for the purpose of driving the liquid crystal to the liquid crystal in the liquid driving mode; PAC (Parallel Aligned Chiralnematic) which eliminates a spiral structure by the liquid crystal molecule orientation control force by the liquid crystal oriented film on a substrate surface. The contrast ratio is thereby improved in the PAC driving mode which is low in the contrast ratio while the high speed response and large- capacity display are possible and with which there are heretofore problems in the display characteristics.
JP23365487A 1987-09-19 1987-09-19 Liquid crystal driving method Pending JPS6478233A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP23365487A JPS6478233A (en) 1987-09-19 1987-09-19 Liquid crystal driving method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP23365487A JPS6478233A (en) 1987-09-19 1987-09-19 Liquid crystal driving method

Publications (1)

Publication Number Publication Date
JPS6478233A true JPS6478233A (en) 1989-03-23

Family

ID=16958433

Family Applications (1)

Application Number Title Priority Date Filing Date
JP23365487A Pending JPS6478233A (en) 1987-09-19 1987-09-19 Liquid crystal driving method

Country Status (1)

Country Link
JP (1) JPS6478233A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08313909A (en) * 1995-05-23 1996-11-29 Fujitsu Ltd LCD display panel

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08313909A (en) * 1995-05-23 1996-11-29 Fujitsu Ltd LCD display panel

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