GB2291508B - Liquid crystal display and heater control circuit for use with said display - Google Patents

Liquid crystal display and heater control circuit for use with said display

Info

Publication number
GB2291508B
GB2291508B GB9518394A GB9518394A GB2291508B GB 2291508 B GB2291508 B GB 2291508B GB 9518394 A GB9518394 A GB 9518394A GB 9518394 A GB9518394 A GB 9518394A GB 2291508 B GB2291508 B GB 2291508B
Authority
GB
United Kingdom
Prior art keywords
display
liquid crystal
control circuit
heater control
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.)
Expired - Fee Related
Application number
GB9518394A
Other versions
GB9518394D0 (en
GB2291508A (en
Inventor
Takashi Yamamoto
Shigeru Noda
Hiroyuki Yokomizo
Hiroshi Takabayashi
Makoto Uehara
Mitsuo Iwayama
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.)
Canon Inc
Original Assignee
Canon Inc
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 JP26879091A external-priority patent/JPH0580300A/en
Priority claimed from JP3281892A external-priority patent/JPH0593899A/en
Priority claimed from JP4034028A external-priority patent/JPH05203913A/en
Application filed by Canon Inc filed Critical Canon Inc
Priority claimed from GB9219694A external-priority patent/GB2259786B/en
Publication of GB9518394D0 publication Critical patent/GB9518394D0/en
Publication of GB2291508A publication Critical patent/GB2291508A/en
Application granted granted Critical
Publication of GB2291508B publication Critical patent/GB2291508B/en
Anticipated expiration legal-status Critical
Expired - Fee Related 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
    • G02F1/133382—Heating or cooling of liquid crystal cells other than for activation, e.g. circuits or arrangements for temperature control, stabilisation or uniform distribution over the 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
    • G02F1/137—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
    • G02F1/141—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 using ferroelectric liquid crystals

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Liquid Crystal (AREA)
GB9518394A 1991-09-20 1992-09-17 Liquid crystal display and heater control circuit for use with said display Expired - Fee Related GB2291508B (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP26879091A JPH0580300A (en) 1991-09-20 1991-09-20 Liquid crystal display device
JP3281892A JPH0593899A (en) 1991-10-03 1991-10-03 Heat generation body control circuit and liquid crystal display device
JP4034028A JPH05203913A (en) 1992-01-27 1992-01-27 Ferroelectric liquid crystal display device
GB9219694A GB2259786B (en) 1991-09-20 1992-09-17 Liquid crystal display and heater control circuit for use with said display

Publications (3)

Publication Number Publication Date
GB9518394D0 GB9518394D0 (en) 1995-11-08
GB2291508A GB2291508A (en) 1996-01-24
GB2291508B true GB2291508B (en) 1996-05-15

Family

ID=27450933

Family Applications (1)

Application Number Title Priority Date Filing Date
GB9518394A Expired - Fee Related GB2291508B (en) 1991-09-20 1992-09-17 Liquid crystal display and heater control circuit for use with said display

Country Status (1)

Country Link
GB (1) GB2291508B (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19718208A1 (en) * 1997-04-30 1998-11-05 Philips Patentverwaltung Display device
CN108663844B (en) * 2018-05-29 2024-02-02 江苏聚泰科技有限公司 Liquid crystal display module with high safety performance

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4763992A (en) * 1983-11-15 1988-08-16 Canon Kabushiki Kaisha Smectic liquid crystal device with temperature control system
EP0438093A2 (en) * 1990-01-16 1991-07-24 Honeywell Inc. Apparatus and method for temperature compensation of liquid crystal displays

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4763992A (en) * 1983-11-15 1988-08-16 Canon Kabushiki Kaisha Smectic liquid crystal device with temperature control system
EP0438093A2 (en) * 1990-01-16 1991-07-24 Honeywell Inc. Apparatus and method for temperature compensation of liquid crystal displays

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Patent Abstracts of Japan Section P:P-976 Vol. 13 No. 566 page 144 &JP 1237519 *

Also Published As

Publication number Publication date
GB9518394D0 (en) 1995-11-08
GB2291508A (en) 1996-01-24

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20050917