HK1007806A1 - Liquid crystal device with grey scale - Google Patents

Liquid crystal device with grey scale

Info

Publication number
HK1007806A1
HK1007806A1 HK98106993A HK98106993A HK1007806A1 HK 1007806 A1 HK1007806 A1 HK 1007806A1 HK 98106993 A HK98106993 A HK 98106993A HK 98106993 A HK98106993 A HK 98106993A HK 1007806 A1 HK1007806 A1 HK 1007806A1
Authority
HK
Hong Kong
Prior art keywords
liquid crystal
crystal device
grey scale
grey
scale
Prior art date
Application number
HK98106993A
Other languages
English (en)
Inventor
Miguel G Tristani Kendra
George Papapolymerou
Original Assignee
Minnesota Mining & Mfg
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
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=23698075&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=HK1007806(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Minnesota Mining & Mfg filed Critical Minnesota Mining & Mfg
Publication of HK1007806A1 publication Critical patent/HK1007806A1/xx

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
    • 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)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Mathematical Physics (AREA)
  • Liquid Crystal (AREA)
  • Liquid Crystal Display Device Control (AREA)
HK98106993A 1989-10-27 1998-06-26 Liquid crystal device with grey scale HK1007806A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US42824189A 1989-10-27 1989-10-27

Publications (1)

Publication Number Publication Date
HK1007806A1 true HK1007806A1 (en) 1999-04-23

Family

ID=23698075

Family Applications (1)

Application Number Title Priority Date Filing Date
HK98106993A HK1007806A1 (en) 1989-10-27 1998-06-26 Liquid crystal device with grey scale

Country Status (6)

Country Link
EP (1) EP0425304B1 (ko)
JP (1) JP2717879B2 (ko)
KR (1) KR100218127B1 (ko)
CA (1) CA2026689C (ko)
DE (1) DE69027834T2 (ko)
HK (1) HK1007806A1 (ko)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA2099437A1 (en) * 1992-07-17 1994-01-18 Marc D. Radcliffe Liquid crystal display device
US6870163B1 (en) 1999-09-01 2005-03-22 Displaytech, Inc. Ferroelectric liquid crystal devices using materials with a de Vries smectic A phase
US7083832B2 (en) 2000-09-01 2006-08-01 Displaytech, Inc. Partially fluorinated liquid crystal material
US6703082B1 (en) 2001-06-20 2004-03-09 Displaytech, Inc. Bookshelf liquid crystal materials and devices

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6217732A (ja) * 1985-07-16 1987-01-26 Canon Inc 液晶装置及び駆動法
JPH0723942B2 (ja) * 1985-08-08 1995-03-15 株式会社半導体エネルギ−研究所 液晶装置
CA1341010C (en) * 1986-06-30 2000-05-30 Minnesota Mining And Manufacturing Company Compounds useful in preparing fluorine-containing chiral smectic liquid crystals
US4886619A (en) * 1986-06-30 1989-12-12 Minnesota Mining And Manufacturing Company Fluorine-containing chiral smectic liquid crystals
GB2217035A (en) * 1988-03-28 1989-10-18 Stc Plc Analogue modulation of light
DE3919839A1 (de) * 1989-06-17 1990-12-20 Hoechst Ag Fluessigkristall-schalt- und anzeige-element

Also Published As

Publication number Publication date
KR100218127B1 (ko) 1999-09-01
DE69027834D1 (de) 1996-08-22
JPH03154029A (ja) 1991-07-02
DE69027834T2 (de) 1997-01-16
EP0425304B1 (en) 1996-07-17
KR910008464A (ko) 1991-05-31
CA2026689C (en) 2000-03-14
EP0425304A2 (en) 1991-05-02
CA2026689A1 (en) 1991-04-28
EP0425304A3 (en) 1992-02-26
JP2717879B2 (ja) 1998-02-25

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Legal Events

Date Code Title Description
PF Patent in force
PC Patent ceased (i.e. patent has lapsed due to the failure to pay the renewal fee)

Effective date: 20081026