
US Patent No: 4,636,866
Number of patents in Portfolio can not be more than 2000
Personal liquid crystal image display
Stats
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Jan 13, 1987
Issued date -
Dec 22, 1983
filing date -
06/564,521
serial no -
Expired
status

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Abstract
A personal liquid crystal image display includes a housing to be worn on a user's head, a light-transmission-type liquid crystal display panel for displaying video signals and a lens positioned between the display panel and a user's eye to enlarge the image. The housing may include earphones. The display and earphones are coupled to a tuner for receiving signal and driving the display and earphones. A portion of the drive circuit for driving the display may be disposed in the housing.
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First Claim
Related Publications
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- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
| Patent Owner | Address | Total Patents |
|---|---|---|
| EPSON CORPORATION | TOKYO | 106 |
| SEIKO EPSON CORPORATION | TOKYO | 16895 |
International Classification(s)
- [Classification Symbol]
- [Patents Count]
Inventor(s)
| Inventor Name | Address | # of filed Patents | Total Citations |
|---|---|---|---|
| Hattori, Noboru | Yokosuka, JP | 24 | 622 |
Cited Art
| Patent Info | (Count) | # Cites | Year |
|---|---|---|---|
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| 4,403,216 Display | 51 | 1981 | |
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| 4,395,731 Television microscope surgical method and apparatus therefor | 54 | 1981 | |
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| 4,310,849 Stereoscopic video system | 67 | 1979 | |
Patent Citation Ranking
Forward Cites
| Patent Info | (Count) | # Cites | Year |
|---|---|---|---|
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| 5,982,553 Display device incorporating one-dimensional grating light-valve array | 334 | 1997 | |
| 6,088,102 Display apparatus including grating light-valve array and interferometric optical system | 125 | 1997 | |
| 6,271,808 Stereo head mounted display using a single display device | 53 | 1998 | |
| 6,130,770 Electron gun activated grating light valve | 72 | 1998 | |
| 6,101,036 Embossed diffraction grating alone and in combination with changeable image display | 67 | 1998 | |
| 6,215,579 Method and apparatus for modulating an incident light beam for forming a two-dimensional image | 106 | 1998 | |
| 6,956,878 Method and apparatus for reducing laser speckle using polarization averaging | 24 | 2000 | |
| 7,177,081 High contrast grating light valve type device | 5 | 2001 | |
| 6,764,875 Method of and apparatus for sealing an hermetic lid to a semiconductor die | 24 | 2001 | |
| 6,865,346 Fiber optic transceiver | 4 | 2001 | |
| 6,747,781 Method, apparatus, and diffuser for reducing laser speckle | 59 | 2001 | |
| 6,829,092 Blazed grating light valve | 11 | 2001 | |
| 6,707,591 Angled illumination for a single order light modulator based projection system | 4 | 2001 | |
| 6,800,238 Method for domain patterning in low coercive field ferroelectrics | 1 | 2002 | |
| 6,782,205 Method and apparatus for dynamic equalization in wavelength division multiplexing | 60 | 2002 | |
| 6,991,953 Microelectronic mechanical system and methods | 9 | 2002 | |
| 6,767,751 Integrated driver process flow | 3 | 2002 | |
| 6,728,023 Optical device arrays with optimized image resolution | 18 | 2002 | |
| 7,054,515 Diffractive light modulator-based dynamic equalizer with integrated spectral monitor | 1 | 2002 | |
| 6,822,797 Light modulator structure for producing high-contrast operation using zero-order light | 5 | 2002 | |
| 6,872,984 Method of sealing a hermetic lid to a semiconductor die at an angle | 19 | 2002 | |
| 6,829,258 Rapidly tunable external cavity laser | 27 | 2002 | |
| 6,908,201 Micro-support structures | 2 | 2002 | |
| 6,813,059 Reduced formation of asperities in contact micro-structures | 65 | 2002 | |
| 6,714,337 Method and device for modulating a light beam and having an improved gamma response | 8 | 2002 | |
| 7,057,795 Micro-structures with individually addressable ribbon pairs | 1 | 2002 | |
| 6,801,354 2-D diffraction grating for substantially eliminating polarization dependent losses | 10 | 2002 | |
| 6,956,995 Optical communication arrangement | 2 | 2002 | |
| 6,712,480 Controlled curvature of stressed micro-structures | 6 | 2002 | |
| 7,049,164 Microelectronic mechanical system and methods | 50 | 2002 | |
| 6,928,207 Apparatus for selectively blocking WDM channels | 1 | 2002 | |
| 7,057,819 High contrast tilting ribbon blazed grating | 1 | 2002 | |
| 6,987,600 Arbitrary phase profile for better equalization in dynamic gain equalizer | 0 | 2002 | |
| 6,934,070 Chirped optical MEM device | 3 | 2002 | |
| 6,927,891 Tilt-able grating plane for improved crosstalk in 1×N blaze switches | 3 | 2002 | |
| 7,068,372 MEMS interferometer-based reconfigurable optical add-and-drop multiplexor | 4 | 2003 | |
| 7,286,764 Reconfigurable modulator-based optical add-and-drop multiplexer | 2 | 2003 | |
| 6,947,613 Wavelength selective switch and equalizer | 1 | 2003 | |
| 6,922,272 Method and apparatus for leveling thermal stress variations in multi-layer MEMS devices | 5 | 2003 | |
| 7,391,973 Two-stage gain equalizer | 0 | 2003 | |
| 7,027,202 Silicon substrate as a light modulator sacrificial layer | 52 | 2003 | |
| 6,922,273 PDL mitigation structure for diffractive MEMS and gratings | 2 | 2003 | |
| 6,829,077 Diffractive light modulator with dynamically rotatable diffraction plane | 2 | 2003 | |
| 6,806,997 Patterned diffractive light modulator ribbon for PDL reduction | 1 | 2003 | |
| 7,042,611 Pre-deflected bias ribbons | 0 | 2003 | |
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| 6,140,980 Head-mounted display system | 52 | 1995 | |
| 7,075,501 Head mounted display system | 12 | 1995 | |
| 5,583,335 Method of making an eye tracking system having an active matrix display | 21 | 1995 | |
| D371549 Head-mounted display device | 10 | 1995 | |
| 6,043,800 Head mounted liquid crystal display system | 80 | 1995 | |
| 6,072,445 Head mounted color display system | 40 | 1995 | |
| D381346 Head-mountable matrix display | 18 | 1995 | |
| 6,424,321 Head-mounted matrix display | 13 | 1995 | |
| D388426 Head-mounted display device | 0 | 1996 | |
| 5,815,126 Monocular portable communication and display system | 141 | 1996 | |
| D394649 Head mounted display device | 1 | 1996 | |
| 7,321,354 Microdisplay for portable communication systems | 4 | 1996 | |
| 7,372,447 Microdisplay for portable communication systems | 46 | 1997 | |
| 6,486,862 Card reader display system | 38 | 1997 | |
| 6,073,034 Wireless telephone display system | 183 | 1997 | |
| 7,310,072 Portable communication display device | 11 | 1997 | |
| 6,232,937 Low power active display system | 128 | 1997 | |
| 6,677,936 Color display system for a camera | 26 | 1997 | |
| 6,552,704 Color display with thin gap liquid crystal | 5 | 1997 | |
| 6,476,784 Portable display system with memory card reader | 10 | 1998 | |
| 6,448,944 Head-mounted matrix display | 39 | 1998 | |
| 6,452,572 Monocular head-mounted display system | 45 | 1998 | |
| 6,909,419 Portable microdisplay system | 22 | 1998 | |
| 7,242,383 Portable microdisplay system | 4 | 1999 | |
| 6,636,185 Head-mounted display system | 80 | 2000 | |
| 6,683,584 Camera display system | 35 | 2002 | |
| 8,040,292 Portable communication display device | 0 | 2007 | |
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| 6,097,543 Personal visual display | 9 | 1995 | |
| 5,903,395 Personal visual display system | 94 | 1995 | |
| 5,864,326 Depixelated visual display | 13 | 1995 | |
| 5,619,377 Optically corrected helmet mounted display | 35 | 1995 | |
| 5,991,087 Non-orthogonal plate in a virtual reality or heads up display | 12 | 1995 | |
| 5,642,227 Optical correction for virtual reality and heads up displays | 6 | 1995 | |
| 5,949,583 Head-mounted display with image generator, fold mirror and mirror for transmission to the eye position of the user | 16 | 1995 | |
| D375495 Head mounted display | 19 | 1995 | |
| D383455 Head mounted display with headtracker | 22 | 1995 | |
| 5,991,085 Head-mounted personal visual display apparatus with image generator and holder | 126 | 1996 | |
| 6,160,666 Personal visual display system | 33 | 1998 | |
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| 5,153,569 Visual image display apparatus having a video display for one eye and a controllable shutter for the other eye | 51 | 1991 | |
| 5,880,773 Head mounted display configured to a user's physical features | 27 | 1992 | |
| 5,371,556 Spectacle type retina direct display apparatus | 35 | 1992 | |
| 5,486,841 Glasses type display apparatus | 98 | 1993 | |
| 6,084,555 Spectacle type display device | 6 | 1994 | |
| 5,451,976 Image display apparatus | 27 | 1994 | |
| 5,691,737 System for explaining an exhibit using spectacle-type displays | 11 | 1994 | |
| 6,215,460 Head-mounted image display apparatus | 12 | 1994 | |
| 5,825,340 Head-mounted image display apparatus | 22 | 1996 | |
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| 5,867,134 VLSI visual display | 17 | 1995 | |
| 5,742,373 Color microdisplays and methods of manufacturing same | 55 | 1995 | |
| 6,222,508 VLSI visual display | 19 | 1999 | |
| 6,452,577 Microdisplay viewer | 19 | 1999 | |
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| 6,600,461 Display apparatus and control method therefor | 2 | 1995 | |
| 6,507,359 Image display system | 39 | 1997 | |
| 6,445,365 Image display apparatus and image photographing apparatus therefor | 11 | 1997 | |
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| 6,911,969 Handheld computer apparatus | 7 | 1998 | |
| 6,650,305 Wireless electronic display | 5 | 1998 | |
| 7,242,371 Wireless electronic display | 1 | 2003 | |
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| 4,934,773 Miniature video display system | 242 | 1987 | |
| 5,048,077 Telephone handset with full-page visual display | 128 | 1988 | |
| 5,023,905 Pocket data receiver with full page visual display | 92 | 1988 | |
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| 5,742,262 Image display apparatus | 29 | 1994 | |
| 5,949,388 Head-mounted video display | 6 | 1996 | |
| 6,731,254 Image display device | 0 | 2001 | |
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| 4,706,117 Stereo laser disc viewing system | 52 | 1985 | |
| 5,281,957 Portable computer and head mounted display | 219 | 1991 | |
| 5,677,728 Stereoscopic video telecommunication system | 26 | 1994 | |
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| 5,954,642 Adjustable head mounted display and system | 10 | 1997 | |
| 6,597,346 Hand held computer with see-through display | 16 | 1998 | |
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| 5,774,096 Head mounted display | 31 | 1995 | |
| 6,124,837 Head mounted display | 1 | 1998 | |
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| 5,392,158 Head-mounted image display | 79 | 1992 | |
| 5,712,649 Head-mounted image display | 87 | 1996 | |
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| 5,739,893 Head-mounted image display apparatus | 3 | 1995 | |
| 6,538,624 Head-mounted image display apparatus | 4 | 2000 | |
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| 5,155,615 Miniature display device for use in a miniature electronic apparatus | 58 | 1989 | |
| 5,598,297 Image display unit | 36 | 1994 | |
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| 5,648,789 Method and apparatus for closed captioning at a performance | 34 | 1991 | |
| 6,005,536 Captioning glasses | 28 | 1996 | |
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| 5,322,441 Method and apparatus for providing a portable visual display | 67 | 1992 | |
| 5,566,241 Method and apparatus for presentation of on-line directional sound | 2 | 1995 | |
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| 5,808,802 Head-mounted display apparatus with a single image display device | 6 | 1997 | |
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| 7,031,922 Methods and devices for enhancing fluency in persons who stutter employing visual speech gestures | 7 | 2000 | |
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| 8,135,227 Apparatus and method for augmenting sight | 0 | 2008 | |
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| 5,903,396 Intensified visual display | 9 | 1997 | |
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| 5,526,022 Sourceless orientation sensor | 74 | 1993 | |
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| 5,189,512 Helmet integrated display system | 70 | 1991 | |
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| 5,719,588 Viewing device | 48 | 1996 | |
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| 5,034,809 Personal video viewing apparatus | 75 | 1989 | |
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| 4,853,764 Method and apparatus for screenless panoramic stereo TV system | 89 | 1988 | |
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| 7,780,450 Video instructional system and method for teaching motor skills | 0 | 2007 | |
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| 5,581,271 Head mounted visual display | 31 | 1994 | |
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| 5,450,596 CD-ROM data retrieval system using a hands-free command controller and headwear monitor | 40 | 1991 | |
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| 5,334,991 Dual image head-mounted display | 126 | 1992 | |
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| 4,808,978 Display system comprising a transparent emissive screen | 17 | 1985 | |
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| 5,912,653 Garment with programmable video display unit | 121 | 1997 | |
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| 6,057,966 Body-carryable display devices and systems using E.G. coherent fiber optic conduit | 46 | 1997 | |
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| 5,003,300 Head mounted display for miniature video display system | 253 | 1988 | |
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| 4,878,046 Mounting a cathode ray tube for a heads-up display system | 21 | 1987 | |
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| 6,754,632 Methods and devices for delivering exogenously generated speech signals to enhance fluency in persons who stutter | 46 | 2000 | |
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| 5,673,151 Image correction in virtual reality and heads up displays | 10 | 1995 | |
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| 4,805,988 Personal video viewing device | 48 | 1987 | |
| 4,859,994 Closed-captioned movie subtitle system | 22 | 1987 | |
| 4,933,755 Head mounted stereoscopic television viewer | 46 | 1989 | |
| 4,982,278 Binocular stereovision | 54 | 1989 | |
| 5,060,062 Electronic vision aid device | 13 | 1990 | |
| 5,406,415 Imaging system for a head-mounted display | 14 | 1992 | |
| 5,812,099 Portable audio-visual virtual-reality system | 1 | 1993 | |
| 5,606,743 Radio eyewear | 81 | 1993 | |
| 5,488,496 Partitionable display system | 103 | 1994 | |
| 5,683,297 Head mounted modular electronic game system | 15 | 1994 | |
| 5,634,201 Communications visor | 59 | 1995 | |
| 5,795,227 Electronic game system | 18 | 1996 | |
| 6,847,336 Selectively controllable heads-up display system | 48 | 1996 | |
| 6,215,593 Portable wide-field optical system with microlenses and fiber-optic image transfer element | 5 | 1997 | |
| 6,421,031 Camera display system | 52 | 1998 | |
| 6,307,526 Wearable camera system with viewfinder means | 51 | 1998 | |
| 6,614,408 Eye-tap for electronic newsgathering, documentary video, photojournalism, and personal safety | 42 | 1999 | |
| 6,446,862 Point of purchase (PoP) terminal | 54 | 1999 | |
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|
| Fee | Large entity fee | small entity fee | micro entity fee |
|---|---|---|---|
| Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
| Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |