DE60308108D1 - Cholesterische Schwarz-Weiss-Flüssigkristallanzeige mit hohem Kontrast - Google Patents
Cholesterische Schwarz-Weiss-Flüssigkristallanzeige mit hohem KontrastInfo
- Publication number
- DE60308108D1 DE60308108D1 DE60308108T DE60308108T DE60308108D1 DE 60308108 D1 DE60308108 D1 DE 60308108D1 DE 60308108 T DE60308108 T DE 60308108T DE 60308108 T DE60308108 T DE 60308108T DE 60308108 D1 DE60308108 D1 DE 60308108D1
- Authority
- DE
- Germany
- Prior art keywords
- liquid crystal
- black
- high contrast
- chiral nematic
- cholesteric
- 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
Links
Classifications
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
- G09G3/3611—Control of matrices with row and column drivers
- G09G3/3622—Control of matrices with row and column drivers using a passive matrix
- G09G3/3629—Control of matrices with row and column drivers using a passive matrix using liquid crystals having memory effects, e.g. ferroelectric liquid crystals
- G09G3/3637—Control of matrices with row and column drivers using a passive matrix using liquid crystals having memory effects, e.g. ferroelectric liquid crystals with intermediate tones displayed by domain size control
-
- 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
-
- 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
- G02F1/13718—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 a change of the texture state of a cholesteric liquid crystal
-
- 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
- G02F1/133528—Polarisers
-
- 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
- G02F1/13363—Birefringent elements, e.g. for optical compensation
- G02F1/133638—Waveplates, i.e. plates with a retardation value of lambda/n
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2300/00—Aspects of the constitution of display devices
- G09G2300/04—Structural and physical details of display devices
- G09G2300/0469—Details of the physics of pixel operation
- G09G2300/0478—Details of the physics of pixel operation related to liquid crystal pixels
- G09G2300/0482—Use of memory effects in nematic liquid crystals
- G09G2300/0486—Cholesteric liquid crystals, including chiral-nematic liquid crystals, with transitions between focal conic, planar, and homeotropic states
Landscapes
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Optics & Photonics (AREA)
- Computer Hardware Design (AREA)
- Theoretical Computer Science (AREA)
- Liquid Crystal (AREA)
- Polarising Elements (AREA)
- Liquid Crystal Substances (AREA)
Applications Claiming Priority (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB0217384 | 2002-07-26 | ||
GB0217384A GB0217384D0 (en) | 2002-07-26 | 2002-07-26 | High contrast black-and-white chiral nematic displays |
GB0217917 | 2002-08-01 | ||
GB0217917A GB0217917D0 (en) | 2002-08-01 | 2002-08-01 | High contrast black-and-white chiral nematic displays |
Publications (2)
Publication Number | Publication Date |
---|---|
DE60308108D1 true DE60308108D1 (de) | 2006-10-19 |
DE60308108T2 DE60308108T2 (de) | 2007-04-05 |
Family
ID=30001990
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE60308108T Expired - Fee Related DE60308108T2 (de) | 2002-07-26 | 2003-07-23 | Cholesterische Schwarz-Weiss-Flüssigkristallanzeige mit hohem Kontrast |
Country Status (9)
Country | Link |
---|---|
US (2) | US20040125284A1 (de) |
EP (1) | EP1385044B1 (de) |
JP (1) | JP2004070326A (de) |
KR (1) | KR20040010383A (de) |
CN (1) | CN1477429A (de) |
AT (1) | ATE338964T1 (de) |
DE (1) | DE60308108T2 (de) |
HK (1) | HK1060772A1 (de) |
TW (1) | TW200401915A (de) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB0401510D0 (en) * | 2004-01-23 | 2004-02-25 | Varintelligent Bvi Ltd | Novel optical configurations in high contrast chiral nematic liquid crystal displays |
US20060134564A1 (en) * | 2004-12-20 | 2006-06-22 | Eastman Kodak Company | Reflective display based on liquid crystal materials |
JP2010266591A (ja) * | 2009-05-13 | 2010-11-25 | Fujitsu Ltd | 表示素子 |
CN102540541A (zh) * | 2012-03-20 | 2012-07-04 | 鞍山亚世光电显示有限公司 | 一种双稳态液晶显示器 |
US9541794B2 (en) | 2014-01-10 | 2017-01-10 | Apple Inc. | High dynamic range liquid crystal display |
WO2022091777A1 (ja) * | 2020-10-29 | 2022-05-05 | 富士フイルム株式会社 | 空中像表示システムおよび入力システム |
Family Cites Families (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE69228874T2 (de) * | 1991-05-02 | 1999-07-29 | Univ Kent State Ohio | Flüssigkristall lichtmodulierungs-vorrichtung und -material |
US5251048A (en) * | 1992-05-18 | 1993-10-05 | Kent State University | Method and apparatus for electronic switching of a reflective color display |
US5889566A (en) * | 1994-04-11 | 1999-03-30 | Advanced Display Systems, Inc. | Multistable cholesteric liquid crystal devices driven by width-dependent voltage pulse |
US5625477A (en) * | 1994-04-11 | 1997-04-29 | Advanced Display Systems, Inc. | Zero field multistable cholesteric liquid crystal displays |
US5644330A (en) * | 1994-08-11 | 1997-07-01 | Kent Displays, Inc. | Driving method for polymer stabilized and polymer free liquid crystal displays |
US6154190A (en) * | 1995-02-17 | 2000-11-28 | Kent State University | Dynamic drive methods and apparatus for a bistable liquid crystal display |
US5748277A (en) * | 1995-02-17 | 1998-05-05 | Kent State University | Dynamic drive method and apparatus for a bistable liquid crystal display |
US5758277A (en) * | 1996-09-19 | 1998-05-26 | Corsair Communications, Inc. | Transient analysis system for characterizing RF transmitters by analyzing transmitted RF signals |
US5796454A (en) * | 1996-12-04 | 1998-08-18 | Advanced Display Systems, Inc. | Cholesteric liquid crystal display employing circular polarizer and methods of operation and manufacture therefor |
US5933203A (en) * | 1997-01-08 | 1999-08-03 | Advanced Display Systems, Inc. | Apparatus for and method of driving a cholesteric liquid crystal flat panel display |
US5877826A (en) * | 1997-02-06 | 1999-03-02 | Kent State University | Dual frequency switchable cholesteric liquid crystal light shutter and driving waveform |
US6268840B1 (en) * | 1997-05-12 | 2001-07-31 | Kent Displays Incorporated | Unipolar waveform drive method and apparatus for a bistable liquid crystal display |
US6133895A (en) * | 1997-06-04 | 2000-10-17 | Kent Displays Incorporated | Cumulative drive scheme and method for a liquid crystal display |
US6204835B1 (en) * | 1998-05-12 | 2001-03-20 | Kent State University | Cumulative two phase drive scheme for bistable cholesteric reflective displays |
US6268839B1 (en) * | 1998-05-12 | 2001-07-31 | Kent State University | Drive schemes for gray scale bistable cholesteric reflective displays |
JP2000178557A (ja) * | 1998-12-14 | 2000-06-27 | Minolta Co Ltd | 液晶組成物及び液晶光変調素子 |
US6320563B1 (en) * | 1999-01-21 | 2001-11-20 | Kent State University | Dual frequency cholesteric display and drive scheme |
US6344887B1 (en) * | 1999-09-10 | 2002-02-05 | Yao-Dong Ma | Full spectrum reflective choleterics display employing circular polarizers with the same polarity but different disposition |
US6812913B2 (en) * | 2000-02-17 | 2004-11-02 | Minolta Co., Ltd. | Liquid crystal display driving method and liquid crystal display device |
JP2002357851A (ja) * | 2001-03-30 | 2002-12-13 | Minolta Co Ltd | 液晶表示装置 |
US6462805B1 (en) * | 2001-06-04 | 2002-10-08 | Display Research, Inc. | Reverse-mode direct-view display employing a liquid crystal having a characteristic wavelength in the non-visible spectrum |
US20030160923A1 (en) * | 2002-02-19 | 2003-08-28 | Yao-Dong Ma | Full color cholesteric displays employing cholesteric color filter |
US6757039B2 (en) * | 2002-06-17 | 2004-06-29 | Yao-Dong Ma | Paper white cholesteric displays employing reflective elliptical polarizer |
JP2004333999A (ja) * | 2003-05-09 | 2004-11-25 | Mitsubishi Electric Corp | 反射型液晶表示装置 |
-
2003
- 2003-07-22 TW TW092119943A patent/TW200401915A/zh unknown
- 2003-07-23 AT AT03254628T patent/ATE338964T1/de not_active IP Right Cessation
- 2003-07-23 DE DE60308108T patent/DE60308108T2/de not_active Expired - Fee Related
- 2003-07-23 EP EP03254628A patent/EP1385044B1/de not_active Expired - Lifetime
- 2003-07-24 JP JP2003201204A patent/JP2004070326A/ja active Pending
- 2003-07-24 CN CNA031503160A patent/CN1477429A/zh active Pending
- 2003-07-25 KR KR1020030051262A patent/KR20040010383A/ko not_active Application Discontinuation
- 2003-07-25 US US10/627,525 patent/US20040125284A1/en not_active Abandoned
-
2004
- 2004-05-22 HK HK04103646A patent/HK1060772A1/xx not_active IP Right Cessation
-
2005
- 2005-12-14 US US11/304,368 patent/US20060098141A1/en not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
EP1385044A8 (de) | 2004-05-12 |
EP1385044B1 (de) | 2006-09-06 |
ATE338964T1 (de) | 2006-09-15 |
KR20040010383A (ko) | 2004-01-31 |
US20040125284A1 (en) | 2004-07-01 |
DE60308108T2 (de) | 2007-04-05 |
EP1385044A1 (de) | 2004-01-28 |
HK1060772A1 (en) | 2004-08-20 |
JP2004070326A (ja) | 2004-03-04 |
CN1477429A (zh) | 2004-02-25 |
US20060098141A1 (en) | 2006-05-11 |
TW200401915A (en) | 2004-02-01 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |