CH609784A5 - Electrooptic passive display cell - Google Patents

Electrooptic passive display cell

Info

Publication number
CH609784A5
CH609784A5 CH667077A CH667077A CH609784A5 CH 609784 A5 CH609784 A5 CH 609784A5 CH 667077 A CH667077 A CH 667077A CH 667077 A CH667077 A CH 667077A CH 609784 A5 CH609784 A5 CH 609784A5
Authority
CH
Switzerland
Prior art keywords
electrooptic
colour
display
display cell
cell
Prior art date
Application number
CH667077A
Inventor
Rene Viennet
Fereydoun Gharadjedaghi
Original Assignee
Ebauches Sa
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 Ebauches Sa filed Critical Ebauches Sa
Priority to CH667077A priority Critical patent/CH609784A5/en
Priority to DE19772736672 priority patent/DE2736672A1/en
Priority to JP5645178A priority patent/JPS53148463A/en
Publication of CH609784A5 publication Critical patent/CH609784A5/en

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
    • G02F1/13725—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 guest-host interaction
    • 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
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/133509—Filters, e.g. light shielding masks
    • 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
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/133528—Polarisers
    • G02F1/133533—Colour selective polarisers

Landscapes

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

Abstract

The twisted-nematic liquid-crystal electrooptic passive-display cell comprises two transparent plates (1 and 2) carrying drive electrodes (5 and 6) between which the liquid crystal (3) is held captive. This cell furthermore includes two polarisers (7 and 8) located in front of and behind the said plates, respectively. Dichroic molecules are mixed with the liquid crystal (3) so as to determine the colour of the background of the display. In particular, by using a selective polariser at the front and a neutral polariser at the rear of the cell, the display appears as one colour on a background of another colour. <IMAGE>
CH667077A 1977-05-27 1977-05-27 Electrooptic passive display cell CH609784A5 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CH667077A CH609784A5 (en) 1977-05-27 1977-05-27 Electrooptic passive display cell
DE19772736672 DE2736672A1 (en) 1977-05-27 1977-08-12 Passive electron=optical indicator cell - has nematic liq. crystal in helix structure with two plates carrying control electrodes
JP5645178A JPS53148463A (en) 1977-05-27 1978-05-12 Passive electric optycal system indicating pipe

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH667077A CH609784A5 (en) 1977-05-27 1977-05-27 Electrooptic passive display cell

Publications (1)

Publication Number Publication Date
CH609784A5 true CH609784A5 (en) 1979-03-15

Family

ID=4313178

Family Applications (1)

Application Number Title Priority Date Filing Date
CH667077A CH609784A5 (en) 1977-05-27 1977-05-27 Electrooptic passive display cell

Country Status (3)

Country Link
JP (1) JPS53148463A (en)
CH (1) CH609784A5 (en)
DE (1) DE2736672A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108490695A (en) * 2018-04-28 2018-09-04 新辉开科技（深圳）有限公司 A kind of liquid crystal display for electronic license plate
CN108681156A (en) * 2018-04-28 2018-10-19 新辉开科技（深圳）有限公司 A kind of electronic license plate liquid crystal display of different background color

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108490695A (en) * 2018-04-28 2018-09-04 新辉开科技（深圳）有限公司 A kind of liquid crystal display for electronic license plate
CN108681156A (en) * 2018-04-28 2018-10-19 新辉开科技（深圳）有限公司 A kind of electronic license plate liquid crystal display of different background color
CN108490695B (en) * 2018-04-28 2024-05-28 新辉开科技（深圳）有限公司 Liquid crystal display for electronic license plate
CN108681156B (en) * 2018-04-28 2024-08-02 新辉开科技（深圳）有限公司 Electronic license plate liquid crystal display with different background colors

Also Published As

Publication number Publication date
DE2736672A1 (en) 1978-11-30
JPS53148463A (en) 1978-12-25

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Legal Events

Date Code Title Description
PL Patent ceased