JPS54135551A - Multilayer liquid crystal display device - Google Patents

Multilayer liquid crystal display device

Info

Publication number
JPS54135551A
JPS54135551A JP4343078A JP4343078A JPS54135551A JP S54135551 A JPS54135551 A JP S54135551A JP 4343078 A JP4343078 A JP 4343078A JP 4343078 A JP4343078 A JP 4343078A JP S54135551 A JPS54135551 A JP S54135551A
Authority
JP
Japan
Prior art keywords
liquid crystal
refractive index
cell
crystal display
disposed
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
JP4343078A
Other languages
Japanese (ja)
Inventor
Fumiaki Funada
Hirosaku Nonomura
Hisashi Kamiide
Tomio Wada
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 JP4343078A priority Critical patent/JPS54135551A/en
Priority to US05/921,062 priority patent/US4231640A/en
Priority to DE2829602A priority patent/DE2829602C3/en
Priority to CH737178A priority patent/CH634162A5/en
Publication of JPS54135551A publication Critical patent/JPS54135551A/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
    • G02F1/1333—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
    • 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
    • G02F1/1343—Electrodes
    • G02F1/134309—Electrodes characterised by their geometrical arrangement
    • G02F1/134336—Matrix

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)
  • Geometry (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

PURPOSE:To obviate the occurrence of degradation in contrast characteristics even if a twisted nematic liquid crystal display cell is formed in multiplayers by specifying the relation between the layer thicknesses of liquid crystal layers and the refractive index differences of abnormal light and normal light. CONSTITUTION:Glass substrates 1a, 1b provided with transparent electrodes 2a, 2b and further orientation treatment layers 3a, 3b are hermetically sealed by sealing material 4, whereby the liquid crystal cell of double layer construction sealed therein with nematic liquid crystal 5 is constituted. Polarizers 6a, 6b are disposed on the outside surface of the cell and further a reflecting plate 7 is disposed on the back. The electrodes 2a, 2b are connected to a driving circuit 8 and optical displaying is executed to an observer 9. Here, the liquid crystal material and layer thickness are so selected that the product d DELTAn of the layer thickness d of the liquid crystal 5 and the difference DELTAn between the refractive index n2 of the liquid crystal 5 to abnormal light and the refractive index n0 to normal light becomes 2.0mum or over and preferably 2.5mum or over.
JP4343078A 1977-07-07 1978-04-12 Multilayer liquid crystal display device Pending JPS54135551A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP4343078A JPS54135551A (en) 1978-04-12 1978-04-12 Multilayer liquid crystal display device
US05/921,062 US4231640A (en) 1977-07-07 1978-06-30 Matrix type liquid crystal display panel
DE2829602A DE2829602C3 (en) 1977-07-07 1978-07-05 Liquid crystal display panel in a matrix arrangement
CH737178A CH634162A5 (en) 1977-07-07 1978-07-06 LIQUID CRYSTAL DISPLAY PANEL WITH XY MATRIX ARRANGEMENT OF IMAGE POINTS.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4343078A JPS54135551A (en) 1978-04-12 1978-04-12 Multilayer liquid crystal display device

Publications (1)

Publication Number Publication Date
JPS54135551A true JPS54135551A (en) 1979-10-20

Family

ID=12663473

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4343078A Pending JPS54135551A (en) 1977-07-07 1978-04-12 Multilayer liquid crystal display device

Country Status (1)

Country Link
JP (1) JPS54135551A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57125919A (en) * 1981-01-30 1982-08-05 Sharp Corp Two layer type liquid crystal display device
JPS58160928A (en) * 1982-03-19 1983-09-24 Hitachi Ltd Liquid crystal display element
US5091794A (en) * 1988-11-11 1992-02-25 International Business Machines Corporation Twisted nematic liquid crystal display device
JPH0545672A (en) * 1991-08-13 1993-02-26 Nec Corp Reflection type liquid crystal display element and its driving method
US5719650A (en) * 1995-05-12 1998-02-17 Massachusetts Institute Of Technology High-fidelity spatial light modulator
JP2002107765A (en) * 2000-09-29 2002-04-10 Optrex Corp Liquid crystal display device

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50794A (en) * 1972-11-13 1975-01-07

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS50794A (en) * 1972-11-13 1975-01-07

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57125919A (en) * 1981-01-30 1982-08-05 Sharp Corp Two layer type liquid crystal display device
JPS6353529B2 (en) * 1981-01-30 1988-10-24 Sharp Kk
JPS58160928A (en) * 1982-03-19 1983-09-24 Hitachi Ltd Liquid crystal display element
JPH0466003B2 (en) * 1982-03-19 1992-10-21 Hitachi Ltd
US5091794A (en) * 1988-11-11 1992-02-25 International Business Machines Corporation Twisted nematic liquid crystal display device
JPH0545672A (en) * 1991-08-13 1993-02-26 Nec Corp Reflection type liquid crystal display element and its driving method
US5719650A (en) * 1995-05-12 1998-02-17 Massachusetts Institute Of Technology High-fidelity spatial light modulator
JP2002107765A (en) * 2000-09-29 2002-04-10 Optrex Corp Liquid crystal display device

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