CA1002642A - Reflection system for liquid crystal displays - Google Patents

Reflection system for liquid crystal displays

Info

Publication number
CA1002642A
CA1002642A CA164,538A CA164538A CA1002642A CA 1002642 A CA1002642 A CA 1002642A CA 164538 A CA164538 A CA 164538A CA 1002642 A CA1002642 A CA 1002642A
Authority
CA
Canada
Prior art keywords
liquid crystal
crystal displays
reflection system
reflection
displays
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
CA164,538A
Other versions
CA164538S (en
Inventor
James L. Fergason
Thomas B. Harsch
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
Application granted granted Critical
Publication of CA1002642A publication Critical patent/CA1002642A/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)
CA164,538A 1972-03-10 1973-02-26 Reflection system for liquid crystal displays Expired CA1002642A (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
CA1002642A true CA1002642A (en) 1976-12-28

Family

ID=22878250

Family Applications (1)

Application Number Title Priority Date Filing Date
CA164,538A Expired CA1002642A (en) 1972-03-10 1973-02-26 Reflection system for liquid crystal displays

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)

Families Citing this family (33)

* 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
JPS518897A (en) * 1974-07-09 1976-01-24 Canon Kk EKISHOHYOJISOCHI
JPS5110797A (en) * 1974-07-09 1976-01-28 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
GB2056739B (en) * 1979-07-30 1984-03-21 Sharp Kk Segmented type liquid crystal display and driving method thereof
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

Also Published As

Publication number Publication date
FR2176396A5 (en) 1973-10-26
JPS491253A (en) 1974-01-08
GB1430391A (en) 1976-03-31
DE2310219A1 (en) 1973-09-20
DE2310219C2 (en) 1984-01-26
JPS5922210B2 (en) 1984-05-25

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