Color display system

Number of patents in Portfolio can not be more than 2000

United States of America Patent

PATENT NO 4917465
SERIAL NO

07402134

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A preferred display system is formed by stacking three STN birefringent LCD panels that are tuned to different subtractive primary colors (i.e. yellow, cyan and magenta). Interposed between the panels, and sandwiched about the stack, are polarizers. At least some of the polarizers may be colored to enhance the birefringence color characteristics and to improve brightness. In some embodiments, the assembly is illuminated by a collimated light source and the resulting image is focused onto a projection screen for viewing. In other embodiments, optics are provided to permit direct wide angle viewing of the display without parallax effects.

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First Claim

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Patent Owner(s)

Patent OwnerAddressTotal Patents
IN FOCUS SYSTEMS, INC.WILSONVILLE, OR1
SEIKO EPSON CORPORATIONTOKYO19046

International Classification(s)

  • [Classification Symbol]
  • [Patents Count]

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Conner, Arlie R Portland, OR 72 2739
Gulick, Paul E Tualatin, OR 18 738

Cited Art Landscape

Patent Info (Count) # Cites Year
 
SHARP KABUSHIKI KAISHA (3)
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Other [Check patent profile for assignment information] (1)
* 4652101 Overhead projector 38 1985
 
SEIKO EPSON CORPORATION (1)
* 4659183 Backlighted liquid crystal display 39 1984
 
SONY CORPORATION (1)
* 4745406 Liquid crystal display apparatus 20 1986
 
STC PLC, A BRITISH COMPANY (1)
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SHINSJU SEIKI KABUSHIKI KAISHA (1)
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MANCHESTER R&D LIMITED PARTNERSHIP (1)
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FUJITSU LIMITED (2)
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HITACHI, LTD. (2)
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* 4838655 Projector using guest-host liquid crystal cells for improved color purity 57 1988
 
COMMISSARIAT A L'ENERGIE ATOMIQUE (1)
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ABB SWITZERLAND HOLDING LTD. (2)
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AKAMAI TECHNOLOGIES, INC. (1)
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BBC Brown, Boveri & Company, Limited (1)
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KAISER AEROSPACE AND ELECTRONICS CORPORATION (1)
* 4770500 Method and apparatus for multi color display 73 1986
 
nView Corporation (1)
* 4763993 Liquid crystal display for projection systems 56 1987
 
TEXAS INSTRUMENTS INCORPORATED (1)
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Veglia (1)
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VICTOR COMPANY OF JAPAN, LTD. (2)
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SEIKO PRECISION INC. (1)
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CASIO COMPUTER CO., LTD. (3)
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TEKTRONIX, INC. (2)
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POLAROID CORPORATION (1)
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CONSIGLIO NAZIONALE DELLE RICERCHE, AN ITALIAN CORP. (1)
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* Cited By Examiner

Patent Citation Ranking

Forward Cite Landscape

Patent Info (Count) # Cites Year
 
MINNESOTA MINING AND MANUFACTURING COMPANY (7)
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* 5594830 Luminaire device 159 1995
* 6002829 Luminaire device 103 1997
6335999 Multilayer luminaire device 53 2000
 
Other [Check patent profile for assignment information] (3)
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6204899 High efficiency, color coding light pipe methods for display applications, utilizing chiral liquid crystal materials 20 1998
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HITACHI MAXELL, LTD. (1)
RE38175 Liquid crystal display element and micro-lens arrangement and a display using the same 2 1999
 
HANNSTAR DISPLAY CORP. (1)
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UNIVERSITY TECHNOLOGY CORPORATION (2)
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6310673 Transmissive optical polarizing filters designed to maximize a desired portion of a spectral output 19 1999
 
REVEO, INC. (4)
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7110052 Backlighting construction for use in computer-based display systems having direct and projection viewing modes of operation 6 1998
 
HITACHI, LTD. (2)
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APPLE INC. (2)
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Advanced Simulation Displays Co. (1)
7414595 Virtual mosaic wide field of view display system 40 2003
 
IN FOCUS SYSTEMS, INC. (2)
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COUNTERPOINT MASTER LLC (1)
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QUANTA DISPLAY JAPAN INC. (2)
* 7379132 Liquid crystal display and method for determining the contrast of a color layer and polarizer plate 0 2005
* 2006/0092,350 Liquid crystal display 2 2005
 
RAYTHEON COMPANY (1)
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CANON KABUSHIKI KAISHA (1)
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INTERNATIONAL BUSINESS MACHINES CORPORATION (1)
* 5799231 Variable index distributed mirror 53 1996
 
OPTIMAX TECHNOLOGY CORPORATION (1)
* 2005/0088,590 Method and apparatus for enhancing a contrast ratio of a liquid crystal display 3 2004
 
Sayett Group, Inc. (1)
* 5122887 Color display utilizing twisted nematic LCDs and selective polarizers 77 1991
 
HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. (5)
* 5179459 Methods for adhering multiple stack liquid crystal display panels 32 1991
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6791628 Portable computer system incorporating a rear projection display 6 2000
 
SAMSUNG DISPLAY CO., LTD. (1)
* 7553050 Optical sheet, backlight assembly and display device having the same 2 2007
 
NATIONAL TAIWAN UNIVERSITY OF SCIENCE AND TECHNOLOGY (1)
* 8073303 Light-concentrating panel 6 2009
 
BACETILOS APPLICATIONS LLC (2)
* 5497254 Optical apparatus including a liquid crystal modulator 34 1994
* 5682214 Optical apparatus for controlling the wavefront of a coherent light 59 1995
 
INTEL CORPORATION (1)
* 6417863 Color balancing a multicolor display 6 2000
 
nView Corporation (1)
* 5153621 Optical system for projecting multiple images in adjoining relation without illuminance discontinuities 24 1991
 
SMARTLIGHT LTD. (8)
* 5790216 Viewing apparatus and work station 14 1996
* 5760851 Display device 3 1996
* 5859676 Self-masking viewing apparatus 2 1996
* 5835173 Transparency viewing device comprising passive matrix LCD 13 1996
6311419 Dedicated mammogram viewer 17 1996
* 5963276 Back projection transparency viewer with overlapping pixels 15 1997
* 5890305 Self-masking transparency viewing apparatus 3 1997
6279253 Self-masking transparency viewing apparatus 8 1999
 
CASIO COMPUTER CO., LTD. (1)
* 5585950 STN LCD device displaying multiple colors in response to different voltages which includes a retardation plate 37 1994
 
UNITED CALIFORNIA BANK (FORMERLY KNOWN AS SNAWA BANK CALIFORNIA) (2)
* 5838403 Liquid crystal display system with internally reflecting waveguide for backlighting and non-Lambertian diffusing 129 1996
* 6072551 Backlight apparatus for illuminating a display with controlled light output characteristics 57 1997
 
PALOMAR TECHNOLOGIES CORPORATION (1)
* 5594561 Flat panel display with elliptical diffuser and fiber optic plate 69 1993
 
RELIANT TECHNOLOGIES, INC. (2)
* 5184156 Glasses with color-switchable, multi-layered lenses 126 1991
* 5432624 Optical display unit in which light passes a first cell, reflects, then passes a second cell 6 1993
 
SEIKO EPSON CORPORATION (4)
* 5124818 LCD system having improved contrast ratio 75 1990
* 5608551 Display panel assembly with microlens structure 37 1995
* 6612702 Projection display device 2 1999
6637886 Projection display device 2 2003
 
CREE, INC. (2)
* 5359345 Shuttered and cycled light emitting diode display and method of producing the same 271 1992
* 5724062 High resolution, high brightness light emitting diode display and method and producing the same 237 1994
 
ORTUS TECHNOLOGY CO., LTD (1)
* 6115014 Liquid crystal display by means of time-division color mixing and voltage driving methods using birefringence 35 1995
 
XEROX CORPORATION (2)
* 5220442 Method of making color liquid crystal display with dead front appearance 7 1991
* 5307188 Color liquid crystal display with dead front appearance having opaque mask formed on the primary display 8 1993
 
SUMITOMO CHEMICAL COMPANY, LIMITED (2)
* 6522468 Light-polarizing film 0 1999
6583929 Light-polarizing film 2 2002
 
MASSACHUSETTS INSTITUTE OF TECHNOLOGY (1)
* 5719650 High-fidelity spatial light modulator 31 1995
 
STORK, MICHAEL (1)
7517118 Cable organizer 2 2006
 
KONINKLIJKE PHILIPS ELECTRONICS N V (1)
* 2009/0146,933 HIGH CONTRAST LIQUID CRYSTAL DISPLAY DEVICE 9 2005
 
SHARP KABUSHIKI KAISHA (6)
* 5329388 Liquid crystal display employing light guide plate between cells 20 1992
* 5615024 Color display device with chirped diffraction gratings 44 1993
* 5642214 Optical modulating element and electronic apparatus using it 215 1994
* 5559617 Liquid crystal display device with overlapping compensators with portions having different retardation values 26 1994
* 5691791 Reflective liquid crystal display device and reflector 76 1996
* 2009/0051,707 Liquid Crystal Display Device Drive Method, Liquid Crystal Display Device, and Television Receiver 7 2006
 
CLIO TECHNOLOGIES, INC. (6)
* 5671994 Flat and transparent front-lighting system using microprisms 136 1994
* 5506929 Light expanding system for producing a linear or planar light beam from a point-like light source 136 1994
* 5608837 Transmissive type display and method capable of utilizing ambient light 54 1995
* 5668913 Light expanding system for producing a linear or planar light beam from a point-like light source 62 1996
* 5854872 Divergent angle rotator system and method for collimating light beams 179 1996
* 5835661 Light expanding system for producing a linear or planar light beam from a point-like light source 82 1996
 
LIGHT VALVE SOLUTIONS, LLC (2)
* 5467154 Projection monitor 90 1993
* 5692820 Projection monitor 56 1995
 
3M INNOVATIVE PROPERTIES COMPANY (41)
* 5882774 Optical film 591 1995
* 5828488 Reflective polarizer display 234 1995
* 6088067 Liquid crystal display projection system using multilayer optical film polarizers 45 1995
* 6025897 Display with reflective polarizer and randomizing cavity 110 1996
* 5831375 Electroluminescent lamp using multilayer optical film 55 1997
* 5825542 Diffusely reflecting multilayer polarizers and mirrors 196 1997
* 6124971 Transflective displays with reflective polarizing transflector 110 1997
* 6018419 Diffuse reflectors 35 1998
* 6096375 Optical polarizer 91 1999
6543153 Reflective polarizer having improved properties and optical display with improved reflective polarizer 18 1999
6262842 Transflective displays with reflective polarizing transflector 140 2000
6804058 Electroluminescent light source and display incorporating same 13 2000
6888675 Transflective displays with reflective polarizing transflector 4 2001
* 2001/0008,464 Transflective displays with reflective polarizing trasflector 7 2001
6613421 Optical film 16 2001
6671452 Luminaire device 51 2001
6905220 Backlight system with multilayer optical film reflector 62 2002
* 2002/0141,194 Backlight system with multilayer optical film reflector 25 2002
7038745 Brightness enhancing reflective polarizer 35 2003
* 2003/0164,914 Brightness enhancing reflective polarizer 16 2003
6993242 Luminaire device 31 2003
7083847 Optical film 4 2003
* 2004/0043,205 Optical film 3 2003
7321464 Electroluminescent light source and display incorporating same 10 2004
* 2005/0024,726 Electroluminescent light source and display incorporating same 5 2004
* 2005/0122,587 Optical polarizer 24 2004
7209628 Luminaire device 17 2005
* 2005/0232,572 Luminaire device 1 2005
7423708 Display having a reflective polarizer 2 2005
* 2005/0270,439 DISPLAY HAVING A REFLECTIVE POLARIZER 4 2005
* 2006/0262,400 Optical polarizer 3 2006
7418188 Luminaire device 4 2006
* 2006/0245,718 Luminaire device 7 2006
7297393 Optical film 3 2006
7424197 Luminaire device 16 2006
7587117 Luminaire device 11 2006
* 2007/0036,512 Luminaire device 12 2006
* 2007/0091,230 DISPLAY INCORPORATING REFLECTIVE POLARIZER 5 2006
* 2007/0121,034 Display Incorporating Reflective Polarizer 15 2007
7852560 Display incorporating reflective polarizer 2 2008
* 2009/0079,909 DISPLAY INCORPORATING REFLECTIVE POLARIZER 8 2008
 
REGENMACHER LTD. (7)
* 5920298 Display system having common electrode modulation 46 1996
* 6078303 Display system having electrode modulation to alter a state of an electro-optic layer 10 1997
* 6144353 Display system having electrode modulation to alter a state of an electro-optic layer 15 1997
* 6104367 Display system having electrode modulation to alter a state of an electro-optic layer 13 1997
* 6046716 Display system having electrode modulation to alter a state of an electro-optic layer 22 1997
6329971 Display system having electrode modulation to alter a state of an electro-optic layer 35 2000
6304239 Display system having electrode modulation to alter a state of an electro-optic layer 16 2000
 
BROWN UNIVERSITY (1)
* 5682180 Multi-color electronic display utilizing opponent colors 10 1990
 
THOMSON LICENSING (4)
* 5315418 Two path liquid crystal light valve color display with light coupling lens array disposed along the red-green light path 153 1992
* 5642125 Two path liquid crystal light valve color display 36 1994
* 5504597 Full color display with gradient index lens array disposed between phosphor emitters and liquid crystal display 32 1995
* 5959711 Enhanced off-axis viewing performance of liquid crystal display employing a fiberoptic faceplate having an opaquely masked front surface on the front face 18 1996
 
GUARDIAN INDUSTRIES CORP. (1)
* 5737045 LCD with notch filter 12 1995
 
Honeywell Inc. (1)
* 5032007 Apparatus and method for an electronically controlled color filter for use in information display applications 157 1988
 
GE HEALTHCARE (SV) CORP. (1)
* 5946431 Multi-functional photometer with movable linkage for routing light-transmitting paths using reflective surfaces 4 1997
 
PROXIMA CORPORATION (1)
* 5299039 Stacked display panel construction and method of aligning pixel elements thereof 33 1991
 
KOPIN CORPORATION (10)
* 5444557 Single crystal silicon arrayed devices for projection displays 89 1992
* 5751261 Control system for display panels 56 1993
* 5438241 Single crystal silicon arrayed devices for display panels 143 1993
* 5362671 Method of fabricating single crystal silicon arrayed devices for display panels 112 1994
* 5528397 Single crystal silicon transistors for display panels 162 1994
* 5666175 Optical systems for displays 39 1994
* 5661371 Color filter system for light emitting display panels 69 1996
* 6121950 Control system for display panels 37 1998
6511187 Method of fabricating a matrix display system 25 1998
6558008 Method of fabricating a matrix display system 23 2000
 
REALD INC. (18)
* 5751384 Color polarizers for polarizing an additive color spectrum along a first axis and it's compliment along a second axis 76 1995
* 5822021 Color shutter liquid crystal display system 51 1996
* 6049367 Polarization manipulating device modulator with retarder stack which preconditions light for modulation and isotropic states 33 1997
* 5999240 Optical retarder stack pair for transforming input light into polarization states having saturated color spectra 33 1997
* 5990996 Color selective light modulators employing birefringent stacks 32 1997
* 5929946 Retarder stack for preconditioning light for a modulator having modulation and isotropic states of polarization 152 1997
* 6882384 Color filters and sequencers using color selective light modulators 20 1998
6707516 Single-panel field-sequential color display systems 53 1998
6252638 Color controllable illumination device, indicator lights, transmissive windows and color filters employing retarder stacks 24 1998
6452646 Optical retarder stack formed of multiple retarder sheets 19 1999
6183091 Color imaging systems and methods 93 1999
6417892 Color filters, sequencers and displays using color selective light modulators 51 1999
6273571 Display architectures using an electronically controlled optical retarder stack 36 1999
6899430 Color imaging systems and methods 3 2000
* 2001/0000,971 Color imaging systems and methods 1 2000
6667784 Color filters, sequencers and displays using color selective light modulators 8 2002
7511787 Color filters and sequencers using color-selective light modulators 17 2004
* 2005/0122,454 Color filters and sequencers using color-selective light modulators 2 2004
 
BRITEVIEW TECHNOLOGIES, INC. (4)
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* 5359691 Backlighting system with a multi-reflection light injection system and using microprisms 168 1993
* 5926601 Stacked backlighting system using microprisms 89 1996
* Cited By Examiner