FR2260155A1 - Multi-layer liquid crystal display device - for use e.g. in displaying numerals in electronic calculators - Google Patents

Multi-layer liquid crystal display device - for use e.g. in displaying numerals in electronic calculators

Info

Publication number
FR2260155A1
FR2260155A1 FR7503319A FR7503319A FR2260155A1 FR 2260155 A1 FR2260155 A1 FR 2260155A1 FR 7503319 A FR7503319 A FR 7503319A FR 7503319 A FR7503319 A FR 7503319A FR 2260155 A1 FR2260155 A1 FR 2260155A1
Authority
FR
France
Prior art keywords
liquid crystal
display
display device
electronic calculators
crystal display
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
FR7503319A
Other languages
French (fr)
Other versions
FR2260155B1 (en
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.)
Panasonic Holdings Corp
Original Assignee
Matsushita Electric Industrial Co 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
Priority claimed from JP1481374A external-priority patent/JPS50110297A/ja
Priority claimed from JP49014812A external-priority patent/JPS50110296A/ja
Application filed by Matsushita Electric Industrial Co Ltd filed Critical Matsushita Electric Industrial Co Ltd
Publication of FR2260155A1 publication Critical patent/FR2260155A1/en
Application granted granted Critical
Publication of FR2260155B1 publication Critical patent/FR2260155B1/fr
Granted 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
    • G02F1/1347—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
    • G02F1/13473—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 for wavelength filtering or for colour display without the use of colour mosaic filters
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F13/00—Illuminated signs; Luminous advertising
    • G09F13/24—Illuminated signs; Luminous advertising using tubes or the like filled with liquid, e.g. bubbling liquid
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
    • G09F9/35—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being liquid crystals
    • 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)
  • General Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Mathematical Physics (AREA)
  • Optics & Photonics (AREA)
  • Liquid Crystal (AREA)

Abstract

Electro-optical display device having a pari of polarisers and comprises (i) display cells with coiled filamentous (nematic) liquid crystals having a stacked structure and situated between the polarisers; and (ii) means for selectively applying an electric field to the terminals of a liquid crystal material in the coiled nematic display cells. The device is used for display of letters, symbols, numbers etc. in electronic calculators, in pre-selected colours. In contrast to known devices it can be used for high quality applications involving inversion of the display colours and for complex patterns and in addition can be used for transmitted or reflected displays.
FR7503319A 1974-02-04 1975-02-03 Multi-layer liquid crystal display device - for use e.g. in displaying numerals in electronic calculators Granted FR2260155A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP1481374A JPS50110297A (en) 1974-02-04 1974-02-04
JP49014812A JPS50110296A (en) 1974-02-04 1974-02-04

Publications (2)

Publication Number Publication Date
FR2260155A1 true FR2260155A1 (en) 1975-08-29
FR2260155B1 FR2260155B1 (en) 1982-03-05

Family

ID=26350839

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7503319A Granted FR2260155A1 (en) 1974-02-04 1975-02-03 Multi-layer liquid crystal display device - for use e.g. in displaying numerals in electronic calculators

Country Status (1)

Country Link
FR (1) FR2260155A1 (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0080898A1 (en) * 1981-12-01 1983-06-08 Standard Telephones And Cables Public Limited Company Liquid crystal display devices
EP0138456A2 (en) * 1983-09-26 1985-04-24 Tektronix, Inc. Switchable color filter and field sequential full color display system incorporating same
EP0138455A2 (en) * 1983-09-26 1985-04-24 Tektronix, Inc. High speed electro-optical light gate and field sequential full color display system incorporating same
EP0138454A2 (en) * 1983-09-26 1985-04-24 Tektronix, Inc. Switchable color filter and field sequential full color display system incorporating same
FR2561020A1 (en) * 1984-03-07 1985-09-13 Stanley Electric Co Ltd MULTI-LAYER MATRIX LIQUID CRYSTAL DISPLAY DEVICE
FR2584521A1 (en) * 1985-07-02 1987-01-09 Renault ELECTRO-OPTICAL DISPLAY DEVICE WITH LIQUID CRYSTAL
EP0515298A2 (en) * 1991-05-20 1992-11-25 Cirsa Compania De Inversiones S.A. Colour image display device of the liquid-crystal type, particularly for recreational machines

Cited By (16)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0080898A1 (en) * 1981-12-01 1983-06-08 Standard Telephones And Cables Public Limited Company Liquid crystal display devices
US5387920A (en) * 1983-09-26 1995-02-07 Tektronix Inc. Switchable color filter and field sequential full color display system incorporating same
EP0138456A2 (en) * 1983-09-26 1985-04-24 Tektronix, Inc. Switchable color filter and field sequential full color display system incorporating same
EP0138455A2 (en) * 1983-09-26 1985-04-24 Tektronix, Inc. High speed electro-optical light gate and field sequential full color display system incorporating same
EP0138454A2 (en) * 1983-09-26 1985-04-24 Tektronix, Inc. Switchable color filter and field sequential full color display system incorporating same
EP0138456A3 (en) * 1983-09-26 1986-08-27 Tektronix, Inc. Switchable color filter and field sequential full color display system incorporating same
EP0138454A3 (en) * 1983-09-26 1986-08-27 Tektronix, Inc. Switchable color filter and field sequential full color display system incorporating same
EP0138455A3 (en) * 1983-09-26 1987-01-07 Tektronix, Inc. High speed electro-optical light gate and field sequential full color display system incorporating same
US5714970A (en) * 1983-09-26 1998-02-03 Tektronix, Inc. Switchable color filter using electrically controllable optical retarders
US4758818A (en) * 1983-09-26 1988-07-19 Tektronix, Inc. Switchable color filter and field sequential full color display system incorporating same
EP0422687A1 (en) * 1983-09-26 1991-04-17 Tektronix, Inc. Switchable color filter
FR2561020A1 (en) * 1984-03-07 1985-09-13 Stanley Electric Co Ltd MULTI-LAYER MATRIX LIQUID CRYSTAL DISPLAY DEVICE
FR2584521A1 (en) * 1985-07-02 1987-01-09 Renault ELECTRO-OPTICAL DISPLAY DEVICE WITH LIQUID CRYSTAL
EP0209439A1 (en) * 1985-07-02 1987-01-21 Regie Nationale Des Usines Renault Electro-optical display device with liquid crystals
EP0515298A3 (en) * 1991-05-20 1994-09-07 Cirsa Comp Inversiones Sa Colour image display device of the liquid-crystal type, particularly for recreational machines
EP0515298A2 (en) * 1991-05-20 1992-11-25 Cirsa Compania De Inversiones S.A. Colour image display device of the liquid-crystal type, particularly for recreational machines

Also Published As

Publication number Publication date
FR2260155B1 (en) 1982-03-05

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Legal Events

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