DE69027834D1 - Flüssigkristallvorrichtung mit Graustufe - Google Patents

Flüssigkristallvorrichtung mit Graustufe

Info

Publication number: DE69027834D1
Authority: DE; Germany
Prior art keywords: liquid crystal; crystal device; grayscale liquid; grayscale; liquid
Prior art date: 1989-10-27
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

DE69027834T

Other languages

English (en)

Other versions

DE69027834T2 (de

Inventor

Miguel G Tristani-Kendra

George Papapolymerou

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.)

3M Co

Original Assignee

Minnesota Mining and Manufacturing Co

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.)

1989-10-27

Filing date

1990-10-26

Publication date

1996-08-22

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=DE69027834(D1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.

1990-10-26 Application filed by Minnesota Mining and Manufacturing Co filed Critical Minnesota Mining and Manufacturing Co

1996-08-22 Publication of DE69027834D1 publication Critical patent/DE69027834D1/de

1997-01-16 Application granted granted Critical

1997-01-16 Publication of DE69027834T2 publication Critical patent/DE69027834T2/de

2010-10-27 Anticipated expiration legal-status Critical

Status Expired - Fee Related legal-status Critical Current

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)

DE69027834T 1989-10-27 1990-10-26 Flüssigkristallvorrichtung mit Graustufe Expired - Fee Related DE69027834T2 (de)

Applications Claiming Priority (1)

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

Publications (2)

Publication Number	Publication Date
DE69027834D1 true DE69027834D1 (de)	1996-08-22
DE69027834T2 DE69027834T2 (de)	1997-01-16

Family

ID=23698075

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
DE69027834T Expired - Fee Related DE69027834T2 (de)	1989-10-27	1990-10-26	Flüssigkristallvorrichtung mit Graustufe

Country Status (6)

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

Families Citing this family (6)

* 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
US7195719B1 (en)	2001-01-03	2007-03-27	Displaytech, Inc.	High polarization ferroelectric liquid crystal compositions
US6703082B1 (en)	2001-06-20	2004-03-09	Displaytech, Inc.	Bookshelf liquid crystal materials and devices
US6838128B1 (en)	2002-02-05	2005-01-04	Displaytech, Inc.	High polarization dopants for ferroelectric liquid crystal compositions

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
US4886619A (en) *	1986-06-30	1989-12-12	Minnesota Mining And Manufacturing Company	Fluorine-containing chiral smectic liquid crystals
CA1341010C (en) *	1986-06-30	2000-05-30	Minnesota Mining And Manufacturing Company	Compounds useful in preparing 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

1990
- 1990-10-02 CA CA002026689A patent/CA2026689C/en not_active Expired - Fee Related
- 1990-10-26 DE DE69027834T patent/DE69027834T2/de not_active Expired - Fee Related
- 1990-10-26 JP JP2290633A patent/JP2717879B2/ja not_active Expired - Fee Related
- 1990-10-26 KR KR1019900017229A patent/KR100218127B1/ko not_active Expired - Fee Related
- 1990-10-26 EP EP90311760A patent/EP0425304B1/de not_active Expired - Lifetime
1998
- 1998-06-26 HK HK98106993A patent/HK1007806A1/en not_active IP Right Cessation

Also Published As

Publication number	Publication date
EP0425304A2 (de)	1991-05-02
KR910008464A (ko)	1991-05-31
JPH03154029A (ja)	1991-07-02
EP0425304A3 (en)	1992-02-26
DE69027834T2 (de)	1997-01-16
JP2717879B2 (ja)	1998-02-25
KR100218127B1 (ko)	1999-09-01
CA2026689C (en)	2000-03-14
CA2026689A1 (en)	1991-04-28
HK1007806A1 (en)	1999-04-23
EP0425304B1 (de)	1996-07-17

Publication	Publication Date	Title
DE69032018D1 (de)	1998-03-05	Flüssigkristallvorrichtung
DE69020855D1 (de)	1995-08-17	Flüssigkristallanzeigevorrichtung.
DE69006570D1 (de)	1994-03-24	Flüssigkristall-Wiedergabeanordnung.
DE69025563D1 (de)	1996-04-04	Flüssigkristall-Anzeigevorrichtung
DE68921591D1 (de)	1995-04-13	Flüssigkristall-Anzeigevorrichtung.
DE68915325D1 (de)	1994-06-23	Flüssigkristallanzeigevorrichtung.
DE68906608D1 (de)	1993-06-24	Fluessigkristall-anzeigevorrichtung.
DE68914860D1 (de)	1994-06-01	Flüssigkristall-Anzeigevorrichtung.
DE68924212D1 (de)	1995-10-19	Flüssigkristall-Anzeigevorrichtung.
DE68915947D1 (de)	1994-07-14	Flüssigkristall-Anzeigevorrichtung.
DE68924823D1 (de)	1995-12-21	Flüssigkristall-Anzeigevorrichtung.
DE69008875D1 (de)	1994-06-23	Elektrooptische Flüssigkristall-Anzeigevorrichtung.
DE68924766D1 (de)	1995-12-14	Flüssigkristall-Anzeigevorrichtung.
DE68917704D1 (de)	1994-09-29	Flüssigkristall-Anzeigevorrichtung.
DE69013984D1 (de)	1994-12-15	Flüssigkristall-Anzeigevorrichtung.
DE68917233D1 (de)	1994-09-08	Flüssigkristallvorrichtung.
DE69030508D1 (de)	1997-05-22	Ferroelektrische Flüssigkristallvorrichtung
DE69027415D1 (de)	1996-07-18	Flüssigkristall-Anzeigevorrichtung
DE68922322D1 (de)	1995-06-01	Flüssigkristall-Anzeigevorrichtung.
DE68920498D1 (de)	1995-02-23	Flüssigkristall-Anzeigevorrichtung.
DE3886198D1 (de)	1994-01-20	Flüssigkristall-Anzeigevorrichtung.
DE69015760D1 (de)	1995-02-16	Flüssigkristallvorrichtung.
DE68929393D1 (de)	2002-05-23	Flüssigkristallvorrichtung
DE68924726D1 (de)	1995-12-14	Flüssigkristall-Anzeigevorrichtung.
DE69014334D1 (de)	1995-01-12	Flüssigkristall-Anzeigevorrichtung.

Legal Events

Date	Code	Title	Description
1997-08-14	8364	No opposition during term of opposition
2009-08-20	8339	Ceased/non-payment of the annual fee