GB1438206A - Liquid crystal display device - Google Patents

Liquid crystal display device

Info

Publication number
GB1438206A
GB1438206A GB4355974A GB4355974A GB1438206A GB 1438206 A GB1438206 A GB 1438206A GB 4355974 A GB4355974 A GB 4355974A GB 4355974 A GB4355974 A GB 4355974A GB 1438206 A GB1438206 A GB 1438206A
Authority
GB
United Kingdom
Prior art keywords
liquid crystal
display device
light
dyed
oct
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.)
Expired
Application number
GB4355974A
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.)
Suwa Seikosha KK
Original Assignee
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 Suwa Seikosha KK filed Critical Suwa Seikosha KK
Publication of GB1438206A publication Critical patent/GB1438206A/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
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/133528—Polarisers
    • G—PHYSICS
    • G04—HOROLOGY
    • G04G—ELECTRONIC TIME-PIECES
    • G04G9/00—Visual time or date indication means
    • G04G9/0023—Visual time or date indication means by light valves in general
    • G04G9/0029—Details
    • G04G9/0035—Details constructional
    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • General Physics & Mathematics (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Optics & Photonics (AREA)
  • Liquid Crystal (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

1438206 Controlling light SUWA SEIKOSHA KK 8 Oct 1974 [16 Oct 1973] 43559/74 Heading H4F In a display device comprising at least one polarizer disposed adjacent an electro-optic liquid crystal cell, at least part of the or one polarizer is coated or dyed so to act as a filter for substantially absorbing light of wavelengths lying below a value selected from the range 3800 to 5500 Š, such light otherwise causing damage to the liquid crystal material. As particularly described the cell is disposed between two polarizers one being followed by a diffuse reflector and the other one being overlaid by the filter coating, or being constituted by a polarizing film between plastics plates at least one of which is dyed.
GB4355974A 1973-10-16 1974-10-08 Liquid crystal display device Expired GB1438206A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP48115324A JPS5068098A (en) 1973-10-16 1973-10-16

Publications (1)

Publication Number Publication Date
GB1438206A true GB1438206A (en) 1976-06-03

Family

ID=14659745

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4355974A Expired GB1438206A (en) 1973-10-16 1974-10-08 Liquid crystal display device

Country Status (4)

Country Link
JP (1) JPS5068098A (en)
GB (1) GB1438206A (en)
HK (1) HK52378A (en)
MY (1) MY7800413A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3626146A1 (en) * 1986-08-01 1988-02-11 Georg Rudolph Transparent liquid-crystal display

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5531523Y2 (en) * 1973-12-28 1980-07-28
JPS5231439U (en) * 1975-08-27 1977-03-05

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4851598A (en) * 1971-10-27 1973-07-19

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3626146A1 (en) * 1986-08-01 1988-02-11 Georg Rudolph Transparent liquid-crystal display

Also Published As

Publication number Publication date
JPS5068098A (en) 1975-06-07
MY7800413A (en) 1978-12-31
HK52378A (en) 1978-09-22

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Legal Events

Date Code Title Description
PS Patent sealed
PE20 Patent expired after termination of 20 years

Effective date: 19941007