GB1430391A - Liquid crystal display devices - Google Patents

Liquid crystal display devices

Info

Publication number
GB1430391A
GB1430391A GB1119573A GB1119573A GB1430391A GB 1430391 A GB1430391 A GB 1430391A GB 1119573 A GB1119573 A GB 1119573A GB 1119573 A GB1119573 A GB 1119573A GB 1430391 A GB1430391 A GB 1430391A
Authority
GB
United Kingdom
Prior art keywords
liquid crystal
electrodes
plates
march
leads
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
GB1119573A
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.)
F Hoffmann La Roche AG
Original Assignee
F Hoffmann La Roche AG
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 F Hoffmann La Roche AG filed Critical F Hoffmann La Roche AG
Publication of GB1430391A publication Critical patent/GB1430391A/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
    • G02F1/137—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
    • 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
    • G02F1/133553—Reflecting elements
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B9/00—Exposure-making shutters; Diaphragms
    • G03B9/08—Shutters

Landscapes

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

Abstract

1430391 Alpha-numeric displays F HOFFMANN-LA ROCHE & CO AG 7 March 1973 [10 March 1972] 11195/73 Heading G5C [Also in Division H4] Display apparatus comprises a liquid crystal panel between polarizing plates 46, 48 and a reflector 50 comprising a front diffusing surface 52 and a rear reflecting surface 54. The diffusing surface produces a wide viewing angle and reduces unwanted reflections. The panel comprises liquid crystal material between plates 10, 12 carrying electrodes 16... 22, 24... 30. Leads 36 from the electrodes are carried on an extension of plate 10 and form a plug which engages external circuitry. Panels and the liquid crystal material are described in Specifications 1,405,291 and 1,390,522. The electrodes 16... 22 on plate 12 are connected to leads 36A via conductors 40, 42 and conductive resin filling cut-outs 44 in spacer 14. The planes of polarization of plates 46, 48 are at right angles or parallel. The reflector comprises a sheet 50 of transparent glass or plastics material with its front face 52 ground or sandblasted and a reflecting layer of Al, Ni or Cr on its rear surface. The display may be viewed in light from lamps adjacent the edges of sheet 50. Known reflectors of Al 2 O 3 , ceramic, paper and plastics material are referred to.
GB1119573A 1972-03-10 1973-03-07 Liquid crystal display devices Expired GB1430391A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US23367872A 1972-03-10 1972-03-10

Publications (1)

Publication Number Publication Date
GB1430391A true GB1430391A (en) 1976-03-31

Family

ID=22878250

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1119573A Expired GB1430391A (en) 1972-03-10 1973-03-07 Liquid crystal display devices

Country Status (5)

Country Link
JP (1) JPS5922210B2 (en)
CA (1) CA1002642A (en)
DE (1) DE2310219C2 (en)
FR (1) FR2176396A5 (en)
GB (1) GB1430391A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2126400A (en) * 1979-07-30 1984-03-21 Sharp Kk A segmented type liquid crystal display and driving memory thereof

Families Citing this family (32)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4895795A (en) * 1972-03-17 1973-12-07
JPS49130757A (en) * 1973-04-18 1974-12-14
JPS49130758A (en) * 1973-04-19 1974-12-14
JPS5616917B2 (en) * 1973-08-03 1981-04-18
JPS5041485U (en) * 1973-08-13 1975-04-26
JPS5051698A (en) * 1973-09-07 1975-05-08
JPS5348608Y2 (en) * 1973-09-21 1978-11-21
JPS5422387Y2 (en) * 1974-02-08 1979-08-04
JPS5757710B2 (en) * 1974-04-10 1982-12-06 Canon Kk
JPS5110797A (en) * 1974-07-09 1976-01-28 Canon Kk EKISHOHYOJISOCHI
JPS518897A (en) * 1974-07-09 1976-01-24 Canon Kk EKISHOHYOJISOCHI
JPS5131198A (en) * 1974-09-10 1976-03-17 Suwa Seikosha Kk HYOJISOCHI
JPS5137885U (en) * 1974-09-13 1976-03-22
JPS5194687U (en) * 1975-01-29 1976-07-29
JPS5817957B2 (en) * 1975-01-30 1983-04-11 日本電産コパル株式会社 Hikarikaku Sansouchi
JPS6015196Y2 (en) * 1975-03-08 1985-05-14 カシオ計算機株式会社 Structure of LCD clock display
JPS567538Y2 (en) * 1975-04-30 1981-02-19
JPS52104389U (en) * 1976-02-06 1977-08-08
US4042294A (en) * 1976-03-17 1977-08-16 Micro Display Systems Inc Illuminated electro-optical display apparatus
JPS52145788U (en) * 1976-04-28 1977-11-04
JPS5744361Y2 (en) * 1976-08-18 1982-09-30
JPS5355493U (en) * 1976-10-13 1978-05-12
JPS52103994A (en) * 1976-11-01 1977-08-31 Seiko Epson Corp Display unit
JPS53152585U (en) * 1978-03-30 1978-12-01
JPS53166391U (en) * 1978-06-06 1978-12-26
JPS551276U (en) * 1979-04-26 1980-01-07
JPS5694386A (en) * 1979-12-27 1981-07-30 Suwa Seikosha Kk Liquiddcrystal display unit
JPS5843001Y2 (en) * 1980-01-18 1983-09-29 カシオ計算機株式会社 Structure of the display section of an electronic watch
JPS55105471U (en) * 1980-02-21 1980-07-23
JPS57197588A (en) * 1982-04-12 1982-12-03 Canon Kk Light diffusing reflection plate
JPS5981625A (en) * 1983-09-05 1984-05-11 Canon Inc Light diffusing reflector
DE3627134A1 (en) * 1986-08-09 1988-02-11 Philips Patentverwaltung METHOD AND CIRCUIT FOR THE BRIGHTNESS AND TEMPERATURE DEPENDENT CONTROL OF A LAMP, ESPECIALLY FOR THE ILLUMINATION OF A LCD DISPLAY

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2028089A1 (en) * 1969-06-11 1971-01-28 Kabushiki Kaisha Suwa Seikosha, Tokio Electronic screen device
US3625591A (en) * 1969-11-10 1971-12-07 Ibm Liquid crystal display element
US3731986A (en) * 1971-04-22 1973-05-08 Int Liquid Xtal Co Display devices utilizing liquid crystal light modulation
JPH04330797A (en) * 1991-04-25 1992-11-18 Fujitsu Ltd Method and apparatus for coating with solder

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2126400A (en) * 1979-07-30 1984-03-21 Sharp Kk A segmented type liquid crystal display and driving memory thereof

Also Published As

Publication number Publication date
FR2176396A5 (en) 1973-10-26
DE2310219A1 (en) 1973-09-20
DE2310219C2 (en) 1984-01-26
CA1002642A (en) 1976-12-28
JPS491253A (en) 1974-01-08
JPS5922210B2 (en) 1984-05-25

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Legal Events

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PS Patent sealed