DE2432601C2 - Vorrichtung zur Modulierung von einfarbigem Licht - Google Patents

Vorrichtung zur Modulierung von einfarbigem Licht

Info

Publication number
DE2432601C2
DE2432601C2 DE2432601A DE2432601A DE2432601C2 DE 2432601 C2 DE2432601 C2 DE 2432601C2 DE 2432601 A DE2432601 A DE 2432601A DE 2432601 A DE2432601 A DE 2432601A DE 2432601 C2 DE2432601 C2 DE 2432601C2
Authority
DE
Germany
Prior art keywords
liquid crystal
light
cholesteric
reflector
quarter
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
DE2432601A
Other languages
German (de)
English (en)
Other versions
DE2432601A1 (de
Inventor
Terry Dr. Wettingen Scheffer
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.)
BBC Brown Boveri AG Switzerland
Original Assignee
Bbc AG Brown Boveri & Cie 5401 Baden Aargau
BBC Brown Boveri AG Switzerland
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 Bbc AG Brown Boveri & Cie 5401 Baden Aargau, BBC Brown Boveri AG Switzerland filed Critical Bbc AG Brown Boveri & Cie 5401 Baden Aargau
Publication of DE2432601A1 publication Critical patent/DE2432601A1/de
Application granted granted Critical
Publication of DE2432601C2 publication Critical patent/DE2432601C2/de
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
    • C09K19/00—Liquid crystal materials
    • C09K19/04—Liquid crystal materials characterised by the chemical structure of the liquid crystal components, e.g. by a specific unit
    • C09K19/42—Mixtures of liquid crystal compounds covered by two or more of the preceding groups C09K19/06 - C09K19/40
    • C09K19/50—Mixtures of liquid crystal compounds covered by two or more of the preceding groups C09K19/06 - C09K19/40 containing steroidal liquid crystal compounds
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/30—Polarising elements
    • G02B5/3016—Polarising elements involving passive liquid crystal elements
    • 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
    • G02F1/133536—Reflective polarizers
    • 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
    • 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
    • G02F1/13363—Birefringent elements, e.g. for optical compensation
    • G02F1/133638—Waveplates, i.e. plates with a retardation value of lambda/n
    • 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
    • G02F2201/00—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00
    • G02F2201/08—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00 light absorbing layer
    • 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
    • G02F2201/00—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00
    • G02F2201/34—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00 reflector
    • G02F2201/343—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00 reflector cholesteric liquid crystal reflector

Landscapes

  • Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Nonlinear Science (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Mathematical Physics (AREA)
  • Organic Chemistry (AREA)
  • Materials Engineering (AREA)
  • Engineering & Computer Science (AREA)
  • Liquid Crystal (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Polarising Elements (AREA)
DE2432601A 1974-06-07 1974-07-06 Vorrichtung zur Modulierung von einfarbigem Licht Expired DE2432601C2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH779274A CH573126A5 (US20100056889A1-20100304-C00004.png) 1974-06-07 1974-06-07

Publications (2)

Publication Number Publication Date
DE2432601A1 DE2432601A1 (de) 1975-12-18
DE2432601C2 true DE2432601C2 (de) 1982-12-02

Family

ID=4330536

Family Applications (2)

Application Number Title Priority Date Filing Date
DE2432601A Expired DE2432601C2 (de) 1974-06-07 1974-07-06 Vorrichtung zur Modulierung von einfarbigem Licht
DE7423068U Expired DE7423068U (de) 1974-06-07 1974-07-06 Vorrichtung zur erzeugung und modulierung von einfarbigem licht

Family Applications After (1)

Application Number Title Priority Date Filing Date
DE7423068U Expired DE7423068U (de) 1974-06-07 1974-07-06 Vorrichtung zur erzeugung und modulierung von einfarbigem licht

Country Status (7)

Country Link
US (1) US4032218A (US20100056889A1-20100304-C00004.png)
JP (1) JPS5746531B2 (US20100056889A1-20100304-C00004.png)
AT (1) AT345356B (US20100056889A1-20100304-C00004.png)
CH (1) CH573126A5 (US20100056889A1-20100304-C00004.png)
DE (2) DE2432601C2 (US20100056889A1-20100304-C00004.png)
FR (1) FR2274059A1 (US20100056889A1-20100304-C00004.png)
NL (1) NL7506635A (US20100056889A1-20100304-C00004.png)

Families Citing this family (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5140947A (ja) * 1974-10-02 1976-04-06 Matsushita Electric Ind Co Ltd Denkikogakutekihyojisochi
CH609199B (fr) * 1976-05-20 Ebauches Sa Instrument electronique.
CH600366A5 (US20100056889A1-20100304-C00004.png) * 1976-05-20 1978-06-15 Ebauches Sa
JPS5365263A (en) * 1976-11-24 1978-06-10 Toyota Motor Corp Simultaneously treating method for waste fluid from acid and alkali washingand waste fluid from plating
EP0045104B1 (de) * 1980-07-28 1985-04-10 BBC Aktiengesellschaft Brown, Boveri & Cie. Homöotrop nematisches Display mit internem Reflektor
JPS5811774A (ja) * 1981-07-13 1983-01-22 Matsushita Electric Ind Co Ltd 銅の化学メッキ廃液の処理方法
JPS58157959A (ja) * 1982-03-13 1983-09-20 Kanto Kasei Kogyo Kk 無電解めつき浴の再生方法およびそれに使用する装置
JPS58144522U (ja) * 1982-03-19 1983-09-29 株式会社西村機械製作所 円形振動コンベア
WO1991006889A1 (de) * 1989-11-01 1991-05-16 F.Hoffmann-La Roche Ag Lichtsteuereinrichtungen mit flüssigkristallen
JP3268858B2 (ja) * 1992-11-30 2002-03-25 三洋電機株式会社 液晶表示装置
US5583678A (en) * 1993-03-12 1996-12-10 Casio Computer Co., Ltd. Color liquid crystal display apparatus
US5548422A (en) * 1993-06-28 1996-08-20 In Focus Systems, Inc. Notch filters with cholesteric polarizers with birefringent film and linear polarizer
US5619355A (en) * 1993-10-05 1997-04-08 The Regents Of The University Of Colorado Liquid crystal handedness switch and color filter
US5986734A (en) * 1994-04-04 1999-11-16 Rockwell International Corporation Organic polymer O-plate compensator for improved gray scale performance in twisted nematic liquid crystal displays
WO1995033224A1 (en) * 1994-05-31 1995-12-07 Philips Electronics N.V. Display device having a diffusing display panel
US5493430A (en) * 1994-08-03 1996-02-20 Kent Display Systems, L.P. Color, reflective liquid crystal displays
US5570216A (en) * 1995-04-14 1996-10-29 Kent Display Systems, Inc. Bistable cholesteric liquid crystal displays with very high contrast and excellent mechanical stability
US5691790A (en) * 1995-08-04 1997-11-25 Raychem Corporation Colored liquid crystal display having a reflector which reflects different wavelengths of light for different incident angles
US5841494A (en) * 1996-06-26 1998-11-24 Hall; Dennis R. Transflective LCD utilizing chiral liquid crystal filter/mirrors
JP2000019323A (ja) * 1998-06-30 2000-01-21 Nippon Mitsubishi Oil Corp カラー反射型偏光板
JP4220627B2 (ja) * 1999-08-04 2009-02-04 日東電工株式会社 偏光部材及び液晶表示装置
US20020075434A1 (en) * 2000-06-26 2002-06-20 Yingqiu Jiang Cholesteric liquid crystal polarizing device
KR100694574B1 (ko) * 2000-10-25 2007-03-13 엘지.필립스 엘시디 주식회사 콜레스테릭 액정 컬러필터를 이용한 반사형 액정표시장치및 그의 제조방법
US8040475B2 (en) * 2008-10-20 2011-10-18 Motorola Mobility, Inc. Reflective morphable display device and method of feature activation
ES2613507T3 (es) 2010-09-17 2017-05-24 Graphic Packaging International, Inc. Caja de cartón con asa
WO2014025602A1 (en) 2012-08-10 2014-02-13 Graphic Packaging International, Inc. Carton with handle
EP3024748A4 (en) 2013-07-24 2017-03-22 Graphic Packaging International, Inc. Carton with handle

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT946051B (it) * 1970-12-04 1973-05-21 Hoffmann La Roche Cellula ottica
US3836230A (en) * 1973-06-27 1974-09-17 Xerox Corp Liquid crystal display system

Also Published As

Publication number Publication date
DE2432601A1 (de) 1975-12-18
FR2274059A1 (fr) 1976-01-02
NL7506635A (nl) 1975-12-09
AT345356B (de) 1978-09-11
US4032218A (en) 1977-06-28
DE7423068U (de) 1976-09-02
FR2274059B1 (US20100056889A1-20100304-C00004.png) 1982-04-02
ATA427475A (de) 1978-01-15
CH573126A5 (US20100056889A1-20100304-C00004.png) 1976-02-27
JPS5746531B2 (US20100056889A1-20100304-C00004.png) 1982-10-04
JPS517949A (US20100056889A1-20100304-C00004.png) 1976-01-22

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Legal Events

Date Code Title Description
8110 Request for examination paragraph 44
D2 Grant after examination
8328 Change in the person/name/address of the agent

Free format text: DERZEIT KEIN VERTRETER BESTELLT

8327 Change in the person/name/address of the patent owner

Owner name: BBC BROWN BOVERI AG, BADEN, AARGAU, CH

8339 Ceased/non-payment of the annual fee