JPS57212417A - Liquid crysral dislay device - Google Patents

Liquid crysral dislay device

Info

Publication number
JPS57212417A
JPS57212417A JP56096677A JP9667781A JPS57212417A JP S57212417 A JPS57212417 A JP S57212417A JP 56096677 A JP56096677 A JP 56096677A JP 9667781 A JP9667781 A JP 9667781A JP S57212417 A JPS57212417 A JP S57212417A
Authority
JP
Japan
Prior art keywords
liquid crystal
time division
display
angle
division number
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
JP56096677A
Other languages
Japanese (ja)
Inventor
Yasuhiko Shindo
Kiyoshige Kinugawa
Yoshinori Tanaka
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP56096677A priority Critical patent/JPS57212417A/en
Publication of JPS57212417A publication Critical patent/JPS57212417A/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
    • G02F1/137—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 characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering
    • G02F1/139—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 characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering based on orientation effects in which the liquid crystal remains transparent
    • G02F1/1396—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 characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering based on orientation effects in which the liquid crystal remains transparent the liquid crystal being selectively controlled between a twisted state and a non-twisted state, e.g. TN-LC cell

Landscapes

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

Abstract

PURPOSE:To ensure a display with a high contrast even in the high order split driving mode having a large time division number, by setting the product of the refractive index anisotropy DELTAn of a TN cell and the thickness (d) of a liquid crystal at 0.4<=DELTAn. d<=1.0 and at the same time setting an angle formed by a polarizing plate and an absorbing axis within a twist angle when viewed from the direction of the viewfield angle. CONSTITUTION:The time division number can be increased as the product of the refractive index anisotropy DELTAn of a liquid crystal and the thickness (d) of a liquid crystal layer is decreased. However, the optical rotatory power is lost at <=0.4mum time division number, and the quality of display is not secured. The larger the difference between the twist angle beta of the liquid crystal molecule and the twist angle alpha of the absorbing axes of the upper and the lower polarizing plates the more the time division properties can be increased. However, an evil effect is caused by the interference effect of the double refraction light. In this connection a <=20 deg.C angle is ideal for the difference between the angles beta and alpha. When the display electrodes are distributed so as to occupy the greater part of a display area, the greater part of a display screen is divided into a glow part and a nonglow part with no existence of a backgound part. Thus the nonglow part is regarded as a background to reduce the effect of crosstalk.
JP56096677A 1981-06-24 1981-06-24 Liquid crysral dislay device Pending JPS57212417A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56096677A JPS57212417A (en) 1981-06-24 1981-06-24 Liquid crysral dislay device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56096677A JPS57212417A (en) 1981-06-24 1981-06-24 Liquid crysral dislay device

Publications (1)

Publication Number Publication Date
JPS57212417A true JPS57212417A (en) 1982-12-27

Family

ID=14171422

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56096677A Pending JPS57212417A (en) 1981-06-24 1981-06-24 Liquid crysral dislay device

Country Status (1)

Country Link
JP (1) JPS57212417A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5922031A (en) * 1982-07-28 1984-02-04 Sharp Corp Liquid crystal display device
FR2551558A1 (en) * 1983-08-31 1985-03-08 Hitachi Ltd LIQUID CRYSTAL REPRODUCTION DEVICE
JPS60222823A (en) * 1984-04-20 1985-11-07 Stanley Electric Co Ltd Dot matrix type liquid crystal display device
JPS61105527A (en) * 1984-10-30 1986-05-23 Matsushita Electric Ind Co Ltd Liquid crystal display device
JPS62125331A (en) * 1985-11-26 1987-06-06 Sharp Corp Color liquid crystal display
JPS62153821A (en) * 1985-12-26 1987-07-08 Stanley Electric Co Ltd Liquid crystal display element
JPH04211223A (en) * 1991-03-29 1992-08-03 Hitachi Ltd Liquid crystal display element

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5249854A (en) * 1975-10-17 1977-04-21 Seiko Epson Corp Liquid crystal display device

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5249854A (en) * 1975-10-17 1977-04-21 Seiko Epson Corp Liquid crystal display device

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5922031A (en) * 1982-07-28 1984-02-04 Sharp Corp Liquid crystal display device
FR2551558A1 (en) * 1983-08-31 1985-03-08 Hitachi Ltd LIQUID CRYSTAL REPRODUCTION DEVICE
JPS6050511A (en) * 1983-08-31 1985-03-20 Hitachi Ltd Liquid crystal display element
JPS60222823A (en) * 1984-04-20 1985-11-07 Stanley Electric Co Ltd Dot matrix type liquid crystal display device
JPS61105527A (en) * 1984-10-30 1986-05-23 Matsushita Electric Ind Co Ltd Liquid crystal display device
JPS62125331A (en) * 1985-11-26 1987-06-06 Sharp Corp Color liquid crystal display
JPS62153821A (en) * 1985-12-26 1987-07-08 Stanley Electric Co Ltd Liquid crystal display element
JPH04211223A (en) * 1991-03-29 1992-08-03 Hitachi Ltd Liquid crystal display element

Similar Documents

Publication Publication Date Title
JPS54134452A (en) Quest-host type liquid crystal display device
NO874414D0 (en) PRESENTING CELLS WITH LIQUID CRYSTALS.
JPS5670524A (en) Twisted nematic liquid crystal display unit
CH662239GA3 (en)
JPS57212417A (en) Liquid crysral dislay device
JPS6313018A (en) Liquid crystal display device
DE58908106D1 (en) Liquid crystal display for black and white display.
JPS5545037A (en) Liquid crystal display device
JPS56111836A (en) Liquid-crystal display element
JPS6479724A (en) Liquid crystal display element
JPS5763509A (en) Imaging device
JPS54141150A (en) Liquid crystal display device
JPS6421416A (en) Liquid crystal display element
JPS57188024A (en) Optical write-in type liquid crystal light valve element
JPS6437537A (en) Liquid crystal display element
JPS57138619A (en) Liquid crystal disply element
JPS56162717A (en) Liquid crystal display device
JPS5748715A (en) Liquid-crystal display element
JPS56109316A (en) Liquid crystal display element
JPS6415717A (en) Cell for liquid crystal display
JPS6413521A (en) Liquid crystal display macroprojection device
JPS61193125A (en) Liquid crystal display element
JPH02186302A (en) Plastic optical phase film
JPS62163015A (en) Liquid crystal display element
JPS5398855A (en) Color liquid crystal display device