JPS57109920A - Liquid crystal display element - Google Patents

Liquid crystal display element

Info

Publication number
JPS57109920A
JPS57109920A JP18808180A JP18808180A JPS57109920A JP S57109920 A JPS57109920 A JP S57109920A JP 18808180 A JP18808180 A JP 18808180A JP 18808180 A JP18808180 A JP 18808180A JP S57109920 A JPS57109920 A JP S57109920A
Authority
JP
Japan
Prior art keywords
liq
crystal
films
nematic
display element
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
JP18808180A
Other languages
Japanese (ja)
Inventor
Hiroshi Takanashi
Kenji Yamamoto
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.)
Sharp Corp
Original Assignee
Sharp Corp
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 Sharp Corp filed Critical Sharp Corp
Priority to JP18808180A priority Critical patent/JPS57109920A/en
Publication of JPS57109920A publication Critical patent/JPS57109920A/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

Abstract

PURPOSE:To obtain a high grade display by crossing the orienting directions of 2 glass substrates each having an oriented polyimide film at <=90 deg. and using a liq. crystal layer of only a nematic liq. crystal or the liq. crystal contg. a small amount of an optically active material or the like reverse to the liq. crystal in optical rotatory power. CONSTITUTION:In a twisted nematic field effect mode liq. crystal display element, 2 glass substrates are coated with polyimide polymer films, and the films are rubbed to form orienting films making the tilt angle of a liq. crystal about 10 deg.. The orienting directions of the films are crossed at 80 deg.. The liq. crystal layer is formed with only a nematic liq. crystal or the liq. crystal and about 0.25wt% optically active material or cholesteric liq. crystal reverse to the nematic liq. crystal molecules in optical rotatory power. Thus, the occurrence of a phenomenon causing the coexistence of levo-rotatory and dextro-rotatory liq. crystal molecule regions in one display element and the formation of an induced domain are prevented, and a high grade display is obtd.
JP18808180A 1980-12-26 1980-12-26 Liquid crystal display element Pending JPS57109920A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP18808180A JPS57109920A (en) 1980-12-26 1980-12-26 Liquid crystal display element

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP18808180A JPS57109920A (en) 1980-12-26 1980-12-26 Liquid crystal display element

Publications (1)

Publication Number Publication Date
JPS57109920A true JPS57109920A (en) 1982-07-08

Family

ID=16217364

Family Applications (1)

Application Number Title Priority Date Filing Date
JP18808180A Pending JPS57109920A (en) 1980-12-26 1980-12-26 Liquid crystal display element

Country Status (1)

Country Link
JP (1) JPS57109920A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61226730A (en) * 1985-03-30 1986-10-08 Sharp Corp Twisted nematic type liquid crystal display element
JPS6463925A (en) * 1987-09-04 1989-03-09 Asahi Glass Co Ltd Liquid crystal display device
JPH01252932A (en) * 1988-03-31 1989-10-09 Matsushita Electric Ind Co Ltd Liquid crystal display device
EP0352792A2 (en) * 1988-07-29 1990-01-31 Casio Computer Company Limited Liquid crystal device

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61226730A (en) * 1985-03-30 1986-10-08 Sharp Corp Twisted nematic type liquid crystal display element
JPS6463925A (en) * 1987-09-04 1989-03-09 Asahi Glass Co Ltd Liquid crystal display device
JPH01252932A (en) * 1988-03-31 1989-10-09 Matsushita Electric Ind Co Ltd Liquid crystal display device
EP0352792A2 (en) * 1988-07-29 1990-01-31 Casio Computer Company Limited Liquid crystal device

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