JPS5483456A - Liquid crystal display device - Google Patents

Liquid crystal display device

Info

Publication number
JPS5483456A
JPS5483456A JP15097477A JP15097477A JPS5483456A JP S5483456 A JPS5483456 A JP S5483456A JP 15097477 A JP15097477 A JP 15097477A JP 15097477 A JP15097477 A JP 15097477A JP S5483456 A JPS5483456 A JP S5483456A
Authority
JP
Japan
Prior art keywords
liquid crystal
crystal layer
torsion
substrates
polarization
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.)
Granted
Application number
JP15097477A
Other languages
Japanese (ja)
Other versions
JPS6013161B2 (en
Inventor
Satoru Yamazaki
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.)
Seiko Epson Corp
Suwa Seikosha KK
Original Assignee
Seiko Epson Corp
Suwa Seikosha KK
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 Seiko Epson Corp, Suwa Seikosha KK filed Critical Seiko Epson Corp
Priority to JP15097477A priority Critical patent/JPS6013161B2/en
Publication of JPS5483456A publication Critical patent/JPS5483456A/en
Publication of JPS6013161B2 publication Critical patent/JPS6013161B2/en
Expired 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
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1347—Arrangement of liquid crystal layers or cells in which the final condition of one light beam is achieved by the addition of the effects of two or more layers or cells
    • G02F1/13471—Arrangement of liquid crystal layers or cells in which the final condition of one light beam is achieved by the addition of the effects of two or more layers or cells in which all the liquid crystal cells or layers remain transparent, e.g. FLC, ECB, DAP, HAN, TN, STN, SBE-LC cells
    • 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)
  • Nonlinear Science (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Liquid Crystal (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

PURPOSE:To simultaneously display patterns having contrast differences by providing plural layers of liquid crystal layers in forming a twisted nematic type liquid crystal display device and dividedly setting the angles of torsion of the liquid crystal molecules as the entire part of the device in each liquid crystal layer. CONSTITUTION:Substrates 12, 14, 17 respectively having transparent conductive electrodes 13, 15 and 16, 18 are disposed between a polarizer 8 and analyzer 9 which are disposed with the axes of polarization being perpendicularly intersected. A liquid crystal layer 10 is held between the substrates 13 and 14 and a liquid crystal layer 11 between the substrates 14 and 17. Further the faces of the respective substrates in contact with the liquid crystal are orientation-treated in parallel to the axis of polarization of the polarizer 12 with the substrate 13, in parallel with the axis of polarization of the analyzer 9 with the substrate 17 and in the direction at the intermediate of both of the abovementioned directions with the substrate 14 respectively, whereby the angles of torsion of the liquid crystal molecules are dividedly set so that the sum of the angle of torsion theta10 of the liquid crystal layer 10 and the angle of torsion theta11 of the liquid crystal layer 11 becomes 90 deg.. Hence, when a voltage is applied between the electrodes 13 and 15 as well as 16 and 18, the patterns are displayed with strong contrast and when a voltage is applied only between the elec trode 16 and 18 (or between 13 and 15), they are displayed with weak contrast.
JP15097477A 1977-12-15 1977-12-15 liquid crystal display device Expired JPS6013161B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP15097477A JPS6013161B2 (en) 1977-12-15 1977-12-15 liquid crystal display device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP15097477A JPS6013161B2 (en) 1977-12-15 1977-12-15 liquid crystal display device

Publications (2)

Publication Number Publication Date
JPS5483456A true JPS5483456A (en) 1979-07-03
JPS6013161B2 JPS6013161B2 (en) 1985-04-05

Family

ID=15508505

Family Applications (1)

Application Number Title Priority Date Filing Date
JP15097477A Expired JPS6013161B2 (en) 1977-12-15 1977-12-15 liquid crystal display device

Country Status (1)

Country Link
JP (1) JPS6013161B2 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5823014A (en) * 1981-08-04 1983-02-10 Seiko Epson Corp Multilayered liquid-crystal display device
JPS6095585A (en) * 1983-10-31 1985-05-28 スタンレー電気株式会社 Guest host type liquid crystal display
JPS61135323U (en) * 1985-02-13 1986-08-23
JPS62138838A (en) * 1985-12-12 1987-06-22 Mitsubishi Electric Corp Liquid crystal optical switch

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5823014A (en) * 1981-08-04 1983-02-10 Seiko Epson Corp Multilayered liquid-crystal display device
JPS6095585A (en) * 1983-10-31 1985-05-28 スタンレー電気株式会社 Guest host type liquid crystal display
JPH0157351B2 (en) * 1983-10-31 1989-12-05 Stanley Electric Co Ltd
JPS61135323U (en) * 1985-02-13 1986-08-23
JPS62138838A (en) * 1985-12-12 1987-06-22 Mitsubishi Electric Corp Liquid crystal optical switch

Also Published As

Publication number Publication date
JPS6013161B2 (en) 1985-04-05

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