EP0452438A1 - Light control devices with liquid crystals - Google Patents
Light control devices with liquid crystalsInfo
- Publication number
- EP0452438A1 EP0452438A1 EP90915402A EP90915402A EP0452438A1 EP 0452438 A1 EP0452438 A1 EP 0452438A1 EP 90915402 A EP90915402 A EP 90915402A EP 90915402 A EP90915402 A EP 90915402A EP 0452438 A1 EP0452438 A1 EP 0452438A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- liquid crystal
- light control
- control device
- cell
- light
- 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.)
- Ceased
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
-
- 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
- C09K19/52—Liquid crystal materials characterised by components which are not liquid crystals, e.g. additives with special physical aspect: solvents, solid particles
- C09K19/58—Dopants or charge transfer agents
-
- 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
- C09K19/02—Liquid crystal materials characterised by optical, electrical or physical properties of the components, in general
-
- 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
- G02F1/0009—Materials therefor
- G02F1/0063—Optical properties, e.g. absorption, reflection or birefringence
-
- 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
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N9/00—Details of colour television systems
- H04N9/12—Picture reproducers
- H04N9/31—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM]
- H04N9/3141—Constructional details thereof
- H04N9/315—Modulator illumination systems
- H04N9/3167—Modulator illumination systems for polarizing the light beam
-
- 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
- G02F1/133528—Polarisers
- G02F1/133543—Cholesteric polarisers
Definitions
- the invention relates to light control devices which consist of a combination of liquid crystal cells and polarizers.
- FIG. 4 shows an arrangement with a parallel-oriented cell in reflection mode with circularly polarized light.
- Fig. 5 shows an arrangement with a vertically oriented so-called DAP cell in operation with circularly polarized light
- a linear polarizer with a low degree of polarization can be inserted between the ⁇ / 4 plate and TN cell, which improves the linear polarization without reducing the brightness of the Systems deteriorate significantly.
- circular polarizers can be used as the circular polarizer 8, e.g. B. also wavelength-selective reflecting cholesteric layers with a small pitch.
- the light reflected by them is known to be circularly polarized. In color projection systems, this light is controlled by downstream liquid crystal cells. It is advantageous if a previous conversion into linearly polarized light can be dispensed with.
- FIGS. 1 and 2 provide a positive contrast if display cells are constructed according to this principle. Negative contrast is easily possible in each case, namely in FIG. 1 in a known manner by rotating the linear polarizers on the output side by 90 °. In Fig. 2, this is done by using a right-handed circular polarizer instead of a left-handed one.
- FIG. 3 The arrangement shown in FIG. 3 is also based on the fact that, as in FIG. 2, circularly polarized light is fed directly to a TN cell 9.
- the right circularly polarized input light passes through the TN cell.
- the reflector 10 can also be integrated directly on the inside of the rear substrate of the TN cell.
- any other liquid crystal cell can be used for this arrangement, which allows the desired optical path difference between the switched-off and switched-on state to be achieved.
- Other liquid crystal cells with a helical molecular arrangement ie for example the highly twisted so-called supertwist, SBE and STN cells, are particularly suitable. Liquid crystal cells with a non-twisted structure can also be used in this new mode of operation.
- the reflector 10 can be arranged directly on the substrate or the rear wall of the liquid crystal cell, so that light-absorbing structures, such as e.g. Thin film transistors etc., are located behind the reflector and thus do not reduce the aperture or the brightness of the active area of the picture element.
- Another significant advantage is that the path of the light behind the liquid crystal to the reflector and back is shorter due to the lack of an intermediate glass substrate, so that when the light is at an angle, i.e. large viewing angle, the parallax error is smaller than in conventional arrangements.
Abstract
Il est proposé un nouveau mode d'exploitation pour des dispositifs de commande d'éclairage comprenant une combinaison de cellules à cristaux liquides et de polariseurs. L'exploitation directe de cellules à cristaux liquides (7) à lumière polarisée circulaire est avantageuse à bien des égards. La lumière polarisée circulaire est produite au moyen, soit de polariseurs circulaires traditionnels (3), soit de cristaux liquides cholestériques monomères ou polymères. Le nouveau mode d'exploitation est rendu possible, dans des conditions déterminées, pour toutes les cellules à cristaux liquides qui devaient être actionnées, jusqu'à présent, par une lumière polarisée linéaire.A new operating mode is proposed for lighting control devices comprising a combination of liquid crystal cells and polarizers. Direct operation of liquid crystal cells (7) with circular polarized light is advantageous in many respects. Circular polarized light is produced using either traditional circular polarizers (3) or monomeric or polymeric cholesteric liquid crystals. The new operating mode is made possible, under determined conditions, for all the liquid crystal cells which have hitherto had to be actuated by linear polarized light.
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH394889 | 1989-11-01 | ||
CH3948/89 | 1989-11-01 |
Publications (1)
Publication Number | Publication Date |
---|---|
EP0452438A1 true EP0452438A1 (en) | 1991-10-23 |
Family
ID=4266932
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP90915402A Ceased EP0452438A1 (en) | 1989-11-01 | 1990-10-26 | Light control devices with liquid crystals |
EP90915403A Expired - Lifetime EP0450025B1 (en) | 1989-11-01 | 1990-10-26 | Temperature compensation of liquid-crystal parameters |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP90915403A Expired - Lifetime EP0450025B1 (en) | 1989-11-01 | 1990-10-26 | Temperature compensation of liquid-crystal parameters |
Country Status (8)
Country | Link |
---|---|
US (1) | US5319478A (en) |
EP (2) | EP0452438A1 (en) |
JP (2) | JP2831463B2 (en) |
KR (2) | KR920701862A (en) |
DE (1) | DE59008313D1 (en) |
HK (1) | HK17897A (en) |
SG (1) | SG50560A1 (en) |
WO (2) | WO1991006889A1 (en) |
Families Citing this family (133)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5486949A (en) | 1989-06-20 | 1996-01-23 | The Dow Chemical Company | Birefringent interference polarizer |
EP0470817A3 (en) * | 1990-08-09 | 1992-11-25 | Seiko Epson Corporation | Liquid crystal electro-optical device |
DE69221968T2 (en) * | 1991-06-28 | 1998-03-05 | Philips Electronics Nv | Image display device |
US6753044B2 (en) | 1991-11-27 | 2004-06-22 | Reveo, Inc. | Coloring media having improved brightness and color characteristics |
US6034753A (en) * | 1991-11-27 | 2000-03-07 | Reveo, Inc. | Circularly polarizing reflective material having super broad-band reflection and transmission characteristics and method of fabricating and using same in diverse applications |
TW289095B (en) * | 1993-01-11 | 1996-10-21 | ||
US5486935A (en) * | 1993-06-29 | 1996-01-23 | Kaiser Aerospace And Electronics Corporation | High efficiency chiral nematic liquid crystal rear polarizer for liquid crystal displays having a notch polarization bandwidth of 100 nm to 250 nm |
DE4328785A1 (en) * | 1993-08-26 | 1995-03-02 | Consortium Elektrochem Ind | Optical elements with imaging color and polarization selective reflection containing cholesteric liquid crystals and the production and use of these elements |
US5408346A (en) * | 1993-10-20 | 1995-04-18 | Kaiser Electro-Optics, Inc. | Optical collimating device employing cholesteric liquid crystal and a non-transmissive reflector |
CA2177714C (en) | 1993-12-21 | 2005-08-09 | Andrew J. Ouderkirk | Multilayered optical film |
US6804058B1 (en) | 1993-12-21 | 2004-10-12 | 3M Innovative Properties Company | Electroluminescent light source and display incorporating same |
US6498683B2 (en) * | 1999-11-22 | 2002-12-24 | 3M Innovative Properties Company | Multilayer optical bodies |
US6096375A (en) * | 1993-12-21 | 2000-08-01 | 3M Innovative Properties Company | Optical polarizer |
US6025897A (en) * | 1993-12-21 | 2000-02-15 | 3M Innovative Properties Co. | Display with reflective polarizer and randomizing cavity |
US20070091230A1 (en) * | 1993-12-21 | 2007-04-26 | 3M Innovative Properties Company | Display incorporating reflective polarizer |
US5882774A (en) | 1993-12-21 | 1999-03-16 | Minnesota Mining And Manufacturing Company | Optical film |
US5717422A (en) * | 1994-01-25 | 1998-02-10 | Fergason; James L. | Variable intensity high contrast passive display |
AU1733195A (en) * | 1994-01-25 | 1995-08-08 | James L. Fergason | Display system and method |
US5532854A (en) * | 1994-01-25 | 1996-07-02 | Fergason; James L. | Folded variable birefringerence zeroth order hybrid aligned liquid crystal apparatus |
US5541745A (en) * | 1994-01-25 | 1996-07-30 | Fergason; James L. | Illumination system for a display using cholesteric liquid crystal reflectors |
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 |
US6101032A (en) * | 1994-04-06 | 2000-08-08 | 3M Innovative Properties Company | Light fixture having a multilayer polymeric film |
US6184969B1 (en) * | 1994-10-25 | 2001-02-06 | James L. Fergason | Optical display system and method, active and passive dithering using birefringence, color image superpositioning and display enhancement |
JP3295583B2 (en) | 1994-12-19 | 2002-06-24 | シャープ株式会社 | Optical device and head-mounted display using the optical device |
US5751388A (en) | 1995-04-07 | 1998-05-12 | Honeywell Inc. | High efficiency polarized display |
US6088067A (en) * | 1995-06-26 | 2000-07-11 | 3M Innovative Properties Company | Liquid crystal display projection system using multilayer optical film polarizers |
EP0871923A1 (en) | 1995-06-26 | 1998-10-21 | Minnesota Mining And Manufacturing Company | Transflective displays with reflective polarizing transflector |
AU716525B2 (en) * | 1995-06-26 | 2000-02-24 | Minnesota Mining And Manufacturing Company | Backlight system with multilayer optical film reflector |
US5699188A (en) * | 1995-06-26 | 1997-12-16 | Minnesota Mining And Manufacturing Co. | Metal-coated multilayer mirror |
CN1106937C (en) | 1995-06-26 | 2003-04-30 | 美国3M公司 | Multilayer polymer film with additional coatings or layers |
JPH11508376A (en) * | 1995-06-26 | 1999-07-21 | ミネソタ マイニング アンド マニュファクチャリング カンパニー | Diffuse reflective multilayer polarizer and diffuse reflective multilayer mirror |
US6737154B2 (en) | 1995-06-26 | 2004-05-18 | 3M Innovative Properties Company | Multilayer polymer film with additional coatings or layers |
KR100394313B1 (en) | 1995-06-26 | 2003-10-30 | 미네소타 마이닝 앤드 매뉴팩춰링 캄파니 | Transparent multilayer device |
US6080467A (en) * | 1995-06-26 | 2000-06-27 | 3M Innovative Properties Company | High efficiency optical devices |
US5731886A (en) * | 1995-09-28 | 1998-03-24 | Rockwell International Corporation | Birefringent compensator for reflective polarizers |
US6404464B1 (en) | 1995-10-30 | 2002-06-11 | Reveo, Inc. | Method and system for producing color images with improved brightness and color characteristics on radiation absorptive surfaces |
US5867316A (en) * | 1996-02-29 | 1999-02-02 | Minnesota Mining And Manufacturing Company | Multilayer film having a continuous and disperse phase |
BR9707766A (en) * | 1996-02-29 | 1999-07-27 | Minnesota Mining & Mfg | Optical body |
BR9707795A (en) | 1996-02-29 | 1999-07-27 | Minnesota Mining & Mfg | Direction control polarizer light control film and visual presentation unit |
US5825543A (en) | 1996-02-29 | 1998-10-20 | Minnesota Mining And Manufacturing Company | Diffusely reflecting polarizing element including a first birefringent phase and a second phase |
JP3291432B2 (en) * | 1996-06-11 | 2002-06-10 | シャープ株式会社 | Liquid crystal display device and terminal device using the same |
US5808794A (en) * | 1996-07-31 | 1998-09-15 | Weber; Michael F. | Reflective polarizers having extended red band edge for controlled off axis color |
US6774961B2 (en) | 1996-11-08 | 2004-08-10 | Reveo, Inc. | Broad-band polarizer and method of fabricating broad-band polarizers |
US6313893B1 (en) * | 1996-12-27 | 2001-11-06 | Duke University | Compensation for DC balancing of liquid crystal displays |
US6627300B1 (en) | 1997-10-12 | 2003-09-30 | 3M Innovative Properties Company | Optical device containing polymeric material domains having different degrees of randomness |
US7023602B2 (en) * | 1999-05-17 | 2006-04-04 | 3M Innovative Properties Company | Reflective LCD projection system using wide-angle Cartesian polarizing beam splitter and color separation and recombination prisms |
US6486997B1 (en) | 1997-10-28 | 2002-11-26 | 3M Innovative Properties Company | Reflective LCD projection system using wide-angle Cartesian polarizing beam splitter |
US6012820A (en) * | 1998-01-13 | 2000-01-11 | 3M Innovative Properties Compnay | Lighted hand-holdable novelty article |
US6082876A (en) * | 1998-01-13 | 2000-07-04 | 3M Innovative Properties Company | Hand-holdable toy light tube with color changing film |
US6157490A (en) * | 1998-01-13 | 2000-12-05 | 3M Innovative Properties Company | Optical film with sharpened bandedge |
US6179948B1 (en) | 1998-01-13 | 2001-01-30 | 3M Innovative Properties Company | Optical film and process for manufacture thereof |
US6120026A (en) * | 1998-01-13 | 2000-09-19 | 3M Innovative Properties Co. | Game with privacy material |
BR9906908A (en) | 1998-01-13 | 2000-10-10 | Minnesota Mining & Mfg | Gliter particles, composite article, dispersion, dispersible combination, molding compound, and injection-moldable compositions, topical medicated cosmetics and comprising gliter. |
US6053795A (en) * | 1998-01-13 | 2000-04-25 | 3M Innovative Properties Company | Toy having image mode and changed image mode |
US6045894A (en) * | 1998-01-13 | 2000-04-04 | 3M Innovative Properties Company | Clear to colored security film |
US6024455A (en) * | 1998-01-13 | 2000-02-15 | 3M Innovative Properties Company | Reflective article with concealed retroreflective pattern |
US6788463B2 (en) * | 1998-01-13 | 2004-09-07 | 3M Innovative Properties Company | Post-formable multilayer optical films and methods of forming |
US6926952B1 (en) * | 1998-01-13 | 2005-08-09 | 3M Innovative Properties Company | Anti-reflective polymer constructions and method for producing same |
US6808658B2 (en) * | 1998-01-13 | 2004-10-26 | 3M Innovative Properties Company | Method for making texture multilayer optical films |
EP1548045B1 (en) * | 1998-01-13 | 2009-06-03 | Minnesota Mining And Manufacturing Company | Modified copolyesters |
US6531230B1 (en) * | 1998-01-13 | 2003-03-11 | 3M Innovative Properties Company | Color shifting film |
US6049419A (en) | 1998-01-13 | 2000-04-11 | 3M Innovative Properties Co | Multilayer infrared reflecting optical body |
US6111697A (en) | 1998-01-13 | 2000-08-29 | 3M Innovative Properties Company | Optical device with a dichroic polarizer and a multilayer optical film |
US5999317A (en) * | 1998-01-13 | 1999-12-07 | 3M Innovative Properties Company | Toy mirror with transmissive image mode |
US6207260B1 (en) | 1998-01-13 | 2001-03-27 | 3M Innovative Properties Company | Multicomponent optical body |
US6113811A (en) * | 1998-01-13 | 2000-09-05 | 3M Innovative Properties Company | Dichroic polarizing film and optical polarizer containing the film |
US6157486A (en) * | 1998-01-13 | 2000-12-05 | 3M Innovative Properties Company | Retroreflective dichroic reflector |
US6569515B2 (en) | 1998-01-13 | 2003-05-27 | 3M Innovative Properties Company | Multilayered polymer films with recyclable or recycled layers |
US6967778B1 (en) | 1998-01-13 | 2005-11-22 | 3M Innovative Properties Co. | Optical film with sharpened bandedge |
US6256146B1 (en) | 1998-07-31 | 2001-07-03 | 3M Innovative Properties | Post-forming continuous/disperse phase optical bodies |
US6749427B1 (en) * | 1998-07-31 | 2004-06-15 | 3M Innovative Properties Company | Dental articles including post-formable multilayer optical films |
US6515717B1 (en) | 1998-08-28 | 2003-02-04 | Reveo, Inc. | Computer-based system for producing multi-color multilayer images on substrates using dry multi-colored cholesteric liquid crystal (CLC) pigment materials applied to binder material patterns |
TW495638B (en) | 1998-10-28 | 2002-07-21 | Dainippon Printing Co Ltd | Liquid-crystal display |
US6208466B1 (en) | 1998-11-25 | 2001-03-27 | 3M Innovative Properties Company | Multilayer reflector with selective transmission |
US6147734A (en) | 1998-12-17 | 2000-11-14 | Dai Nippon Printing Co., Ltd. | Bidirectional dichroic circular polarizer and reflection/transmission type liquid-crystal display device |
US20010046086A1 (en) * | 1998-12-23 | 2001-11-29 | 3M Innovative Properties Company | Polymeric interference film |
US6455140B1 (en) | 1999-01-13 | 2002-09-24 | 3M Innovative Properties Company | Visible mirror film glitter |
US6322236B1 (en) | 1999-02-09 | 2001-11-27 | 3M Innovative Properties Company | Optical film with defect-reducing surface and method for making same |
US6381068B1 (en) | 1999-03-19 | 2002-04-30 | 3M Innovative Properties Company | Reflective projection screen and projection system |
WO2000062121A1 (en) * | 1999-04-08 | 2000-10-19 | Koninklijke Philips Electronics N.V. | Display device |
US6515785B1 (en) * | 1999-04-22 | 2003-02-04 | 3M Innovative Properties Company | Optical devices using reflecting polarizing materials |
US6407862B2 (en) | 1999-05-14 | 2002-06-18 | 3M Innovative Properties Company | Electronic projection system with polymeric film optical components |
US6972813B1 (en) * | 1999-06-09 | 2005-12-06 | 3M Innovative Properties Company | Optical laminated bodies, lighting equipment and area luminescence equipment |
WO2001022129A1 (en) | 1999-09-20 | 2001-03-29 | 3M Innovative Properties Company | Optical films having at least one particle-containing layer |
US6673275B1 (en) | 1999-10-12 | 2004-01-06 | 3M Innovative Properties Company | Method for making optical devices from homopolymers |
US6654170B1 (en) | 1999-10-12 | 2003-11-25 | 3M Innovative Properties Company | Optical device having continuous and disperse phases |
US6449093B2 (en) | 1999-10-12 | 2002-09-10 | 3M Innovative Properties Company | Optical bodies made with a birefringent polymer |
US6590711B1 (en) | 2000-04-03 | 2003-07-08 | 3M Innovative Properties Co. | Light directing construction having corrosion resistant feature |
US6264336B1 (en) | 1999-10-22 | 2001-07-24 | 3M Innovative Properties Company | Display apparatus with corrosion-resistant light directing film |
US6590707B1 (en) | 2000-03-31 | 2003-07-08 | 3M Innovative Properties Company | Birefringent reflectors using isotropic materials and form birefringence |
JP2003532752A (en) | 2000-04-13 | 2003-11-05 | スリーエム イノベイティブ プロパティズ カンパニー | Light stable products |
AU3486401A (en) | 2000-08-21 | 2002-03-04 | 3M Innovative Properties Co | Loss enhanced reflective optical filters |
US6534158B2 (en) | 2001-02-16 | 2003-03-18 | 3M Innovative Properties Company | Color shifting film with patterned fluorescent and non-fluorescent colorants |
US6506480B2 (en) | 2001-02-16 | 2003-01-14 | 3M Innovative Properties Company | Color shifting film with a plurality of fluorescent colorants |
US6917399B2 (en) * | 2001-02-22 | 2005-07-12 | 3M Innovative Properties Company | Optical bodies containing cholesteric liquid crystal material and methods of manufacture |
US6573963B2 (en) | 2001-02-22 | 2003-06-03 | 3M Innovativeproperties Company | Cholesteric liquid crystal optical bodies and methods of manufacture |
JP5067684B2 (en) | 2001-06-14 | 2012-11-07 | Nltテクノロジー株式会社 | Liquid crystal display device and manufacturing method thereof |
US6876427B2 (en) | 2001-09-21 | 2005-04-05 | 3M Innovative Properties Company | Cholesteric liquid crystal optical bodies and methods of manufacture and use |
KR20050073485A (en) * | 2002-10-24 | 2005-07-13 | 쓰리엠 이노베이티브 프로퍼티즈 컴파니 | Methods of making high gain optical devices having a continuous and dispersive phase |
JP2006509078A (en) * | 2002-12-07 | 2006-03-16 | メルク パテント ゲゼルシャフト ミット ベシュレンクテル ハフトング | Liquid crystal medium and liquid crystal display having large twist |
US8243004B2 (en) | 2003-03-10 | 2012-08-14 | Fergason Patent Properties, Llc | Apparatus and method for preparing, storing, transmitting and displaying images |
US20040219338A1 (en) * | 2003-05-01 | 2004-11-04 | Hebrink Timothy J. | Materials, configurations, and methods for reducing warpage in optical films |
US7195356B1 (en) * | 2003-09-22 | 2007-03-27 | Colorlink, Inc. | Split-path color switching system and method |
US7019905B2 (en) * | 2003-12-30 | 2006-03-28 | 3M Innovative Properties Company | Multilayer reflector with suppression of high order reflections |
DE102004021494B4 (en) * | 2004-04-30 | 2006-04-06 | Man Roland Druckmaschinen Ag | Device for applying and removing a sleeve |
US7329465B2 (en) * | 2004-10-29 | 2008-02-12 | 3M Innovative Properties Company | Optical films incorporating cyclic olefin copolymers |
EP1805013A1 (en) * | 2004-10-29 | 2007-07-11 | 3M Innovative Properties Company | Optical films incorporating cyclic olefin copolymers |
US20060093809A1 (en) * | 2004-10-29 | 2006-05-04 | Hebrink Timothy J | Optical bodies and methods for making optical bodies |
US20060159888A1 (en) * | 2004-10-29 | 2006-07-20 | Hebrink Timothy J | Optical films incorporating cyclic olefin copolymers |
US7525604B2 (en) * | 2005-03-15 | 2009-04-28 | Naxellent, Llc | Windows with electrically controllable transmission and reflection |
EP1890869B1 (en) * | 2005-04-06 | 2008-10-15 | 3M Innovative Properties Company | Optical bodies including rough strippable boundary layers and asymmetric surface structures |
US9709700B2 (en) * | 2005-04-06 | 2017-07-18 | 3M Innovative Properties Company | Optical bodies including rough strippable boundary layers |
US20060227421A1 (en) * | 2005-04-06 | 2006-10-12 | Stover Carl A | Optical bodies including strippable boundary layers |
US7180779B2 (en) * | 2005-07-11 | 2007-02-20 | Atmel Corporation | Memory architecture with enhanced over-erase tolerant control gate scheme |
JP5399923B2 (en) * | 2007-01-24 | 2014-01-29 | レイブンブリック,エルエルシー | Temperature response switching type optical down-converting filter |
US7936500B2 (en) * | 2007-03-02 | 2011-05-03 | Ravenbrick Llc | Wavelength-specific optical switch |
US7973998B2 (en) * | 2007-05-18 | 2011-07-05 | Serious Materials, Inc. | Temperature activated optical films |
KR101265393B1 (en) | 2007-07-11 | 2013-05-20 | 라벤브릭 엘엘씨 | Thermally switched reflective optical shutter |
CN101868738B (en) * | 2007-09-19 | 2013-05-15 | 雷文布里克有限责任公司 | Low-emissivity window films and coatings incorporating nanoscale wire grids |
US8169685B2 (en) * | 2007-12-20 | 2012-05-01 | Ravenbrick, Llc | Thermally switched absorptive window shutter |
EP2098584B1 (en) | 2008-03-05 | 2011-10-12 | Merck Patent GmbH | Liquid-crystalline medium and liquid-crystal display having high twist |
CN102066992B (en) * | 2008-04-23 | 2013-11-13 | 雷文布里克有限责任公司 | Glare management of reflective and thermoreflective surfaces |
US9116302B2 (en) * | 2008-06-19 | 2015-08-25 | Ravenbrick Llc | Optical metapolarizer device |
US8665414B2 (en) * | 2008-08-20 | 2014-03-04 | Ravenbrick Llc | Methods for fabricating thermochromic filters |
CN102460238A (en) | 2009-04-10 | 2012-05-16 | 雷文布里克有限责任公司 | Thermally switched optical filter incorporating a guest-host architecture |
US8867132B2 (en) * | 2009-10-30 | 2014-10-21 | Ravenbrick Llc | Thermochromic filters and stopband filters for use with same |
WO2011062708A2 (en) * | 2009-11-17 | 2011-05-26 | Ravenbrick Llc | Thermally switched optical filter incorporating a refractive optical structure |
US20110199680A1 (en) * | 2010-01-22 | 2011-08-18 | Oakley, Inc. | Eyewear with three-dimensional viewing capability |
SG182631A1 (en) * | 2010-01-22 | 2012-08-30 | Oakley Inc | Lenses for 3d eyewear |
CN103038701B (en) * | 2010-03-29 | 2017-01-18 | 雷文布里克有限责任公司 | Polymer-stabilized thermotropic liquid crystal device |
EP2576934A4 (en) | 2010-06-01 | 2014-01-01 | Ravenbrick Llc | Multifunctional building component |
EP2399972B1 (en) | 2010-06-25 | 2015-11-25 | Merck Patent GmbH | Liquid-crystalline medium and liquid-crystal display having high twist |
WO2013033608A2 (en) | 2011-09-01 | 2013-03-07 | Wil Mccarthy | Thermotropic optical shutter incorporating coatable polarizers |
Family Cites Families (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3807831A (en) * | 1972-06-20 | 1974-04-30 | Beckman Instruments Inc | Liquid crystal display apparatus |
US3960438A (en) * | 1972-12-01 | 1976-06-01 | Honeywell Inc. | Reflective displays |
CH573126A5 (en) * | 1974-06-07 | 1976-02-27 | Bbc Brown Boveri & Cie | |
US4073571A (en) * | 1976-05-05 | 1978-02-14 | Hughes Aircraft Company | Circularly polarized light source |
JPS6146030A (en) * | 1984-08-10 | 1986-03-06 | Fujitsu Ltd | Heating oven |
US4780240A (en) * | 1985-08-02 | 1988-10-25 | Chisso Corporation | Liquid crystal composition |
JP2525153B2 (en) * | 1985-08-02 | 1996-08-14 | チッソ株式会社 | Liquid crystal composition |
DE3534778A1 (en) * | 1985-09-30 | 1987-04-02 | Hoechst Ag | CHIRAL ESTER OF MESOGENIC CARBONIC ACIDS, A METHOD FOR THE PRODUCTION THEREOF AND THEIR USE AS A DOPER IN LIQUID CRYSTAL PHASES |
DE3534777A1 (en) * | 1985-09-30 | 1987-04-02 | Hoechst Ag | LIQUID CRYSTAL PHASE WITH DOPERATING EFFECT |
JPS6325626A (en) * | 1986-07-18 | 1988-02-03 | Stanley Electric Co Ltd | Liquid crystal display element |
DE3824902A1 (en) * | 1988-07-22 | 1990-02-15 | Hoechst Ag | OPTICALLY ACTIVE 1,3-DIOXOLANE DERIVATIVES CARRYING A MESOGENIC REMAIN IN 4-POSITION, A METHOD FOR THE PRODUCTION THEREOF AND THEIR USE AS DOPING SUBSTANCES IN LIQUID CRYSTAL MIXTURES |
US5243451A (en) * | 1989-05-15 | 1993-09-07 | Ricoh Company, Ltd. | DAP type liquid crystal device with cholesteric liquid crystal birefringent layer |
US5235443A (en) * | 1989-07-10 | 1993-08-10 | Hoffmann-La Roche Inc. | Polarizer device |
EP0407830B1 (en) * | 1989-07-10 | 1996-09-25 | F. Hoffmann-La Roche Ag | Polarizer |
-
1990
- 1990-10-26 SG SG1996004990A patent/SG50560A1/en unknown
- 1990-10-26 KR KR1019910700667A patent/KR920701862A/en active IP Right Grant
- 1990-10-26 US US07/690,894 patent/US5319478A/en not_active Expired - Lifetime
- 1990-10-26 JP JP2514211A patent/JP2831463B2/en not_active Expired - Fee Related
- 1990-10-26 WO PCT/CH1990/000251 patent/WO1991006889A1/en not_active Application Discontinuation
- 1990-10-26 WO PCT/CH1990/000250 patent/WO1991006613A1/en active IP Right Grant
- 1990-10-26 EP EP90915402A patent/EP0452438A1/en not_active Ceased
- 1990-10-26 EP EP90915403A patent/EP0450025B1/en not_active Expired - Lifetime
- 1990-10-26 DE DE59008313T patent/DE59008313D1/en not_active Expired - Fee Related
- 1990-10-26 JP JP2514212A patent/JP2809877B2/en not_active Expired - Lifetime
- 1990-10-26 KR KR1019910700666A patent/KR100203549B1/en not_active IP Right Cessation
-
1997
- 1997-02-13 HK HK17897A patent/HK17897A/en not_active IP Right Cessation
Non-Patent Citations (1)
Title |
---|
See references of WO9106889A1 * |
Also Published As
Publication number | Publication date |
---|---|
EP0450025A1 (en) | 1991-10-09 |
DE59008313D1 (en) | 1995-03-02 |
JPH04502486A (en) | 1992-05-07 |
JP2809877B2 (en) | 1998-10-15 |
US5319478A (en) | 1994-06-07 |
JPH04502524A (en) | 1992-05-07 |
JP2831463B2 (en) | 1998-12-02 |
KR920701862A (en) | 1992-08-12 |
SG50560A1 (en) | 2000-10-24 |
KR920701393A (en) | 1992-08-11 |
EP0450025B1 (en) | 1995-01-18 |
KR100203549B1 (en) | 1999-06-15 |
WO1991006613A1 (en) | 1991-05-16 |
HK17897A (en) | 1997-02-13 |
WO1991006889A1 (en) | 1991-05-16 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
EP0452438A1 (en) | Light control devices with liquid crystals | |
EP0131216B1 (en) | Liquid crystal display | |
DE4121861C2 (en) | Low absorbing polarizer | |
DE60221888T2 (en) | TRANSLECTIVE LIQUID CRYSTAL DISPLAY | |
DE69333703T2 (en) | Twisted nematic liquid crystal display device | |
DE69934500T2 (en) | TRANSFLECTIVE LIQUID CRYSTAL DISPLAY | |
DE4000451B4 (en) | Electro-optical liquid crystal switching element | |
DE69432654T2 (en) | Liquid crystal display and device | |
DE69838357T2 (en) | Broadband reflective display device and its manufacturing methods | |
EP0689084B1 (en) | Optical component comprising layers of crosslinked liquid crystal monomers and method of its production | |
DE60206964T2 (en) | TRANSLECTIVE LIQUID CRYSTAL DISPLAY DEVICE | |
DE69933364T2 (en) | Color filter layer with cholesteric ordered material and provided with such a color filter layer reflective liquid crystal display | |
EP0509025A1 (en) | Electro-optical liquid crystal switch element. | |
DE69630101T2 (en) | POLARIZATION ELEMENT | |
EP0407830A2 (en) | Polarizer | |
DE3416518A1 (en) | COLOR DISPLAY SYSTEM | |
DE2329618A1 (en) | ARRANGEMENT FOR MULTICOLORED DISPLAY, CONSISTING OF LIGHT SOURCE AND LINEAR POLARIZATION FILTER | |
DD264303A5 (en) | FLUESSIGKRISTALLANZEIGEZELLE | |
DE10331298B4 (en) | Liquid crystal display device with cholesteric liquid crystal | |
DE10337524A1 (en) | Cholesteric liquid crystal color filter reflective liquid crystal display device and method of manufacturing the same | |
DE69531284T2 (en) | LIQUID CRYSTAL DISPLAY DEVICE AND DELAY FILM | |
DE60302801T2 (en) | TRANSLECTIVE LIQUID CRYSTAL DISPLAY DEVICE | |
DE69631860T2 (en) | Optical polarizer and liquid crystal projection system with it | |
DE69925221T2 (en) | Reflective ferroelectric liquid crystal light valve with higher light throughput | |
DE102006062859B4 (en) | IPS liquid crystal display device |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PUAI | Public reference made under article 153(3) epc to a published international application that has entered the european phase |
Free format text: ORIGINAL CODE: 0009012 |
|
17P | Request for examination filed |
Effective date: 19910629 |
|
AK | Designated contracting states |
Kind code of ref document: A1 Designated state(s): CH DE FR GB IT LI NL |
|
17Q | First examination report despatched |
Effective date: 19930211 |
|
RAP1 | Party data changed (applicant data changed or rights of an application transferred) |
Owner name: ROLIC AG |
|
APAB | Appeal dossier modified |
Free format text: ORIGINAL CODE: EPIDOS NOAPE |
|
STAA | Information on the status of an ep patent application or granted ep patent |
Free format text: STATUS: THE APPLICATION HAS BEEN REFUSED |
|
18R | Application refused |
Effective date: 19990211 |
|
REG | Reference to a national code |
Ref country code: HK Ref legal event code: WD Ref document number: 1011094 Country of ref document: HK |
|
APAF | Appeal reference modified |
Free format text: ORIGINAL CODE: EPIDOSCREFNE |