WO2007079299A3 - Compact projection display with emissive imager - Google Patents

Compact projection display with emissive imager Download PDF

Info

Publication number
WO2007079299A3
WO2007079299A3 PCT/US2006/061420 US2006061420W WO2007079299A3 WO 2007079299 A3 WO2007079299 A3 WO 2007079299A3 US 2006061420 W US2006061420 W US 2006061420W WO 2007079299 A3 WO2007079299 A3 WO 2007079299A3
Authority
WO
WIPO (PCT)
Prior art keywords
emissive
light
projection
pixel
imager
Prior art date
Application number
PCT/US2006/061420
Other languages
French (fr)
Other versions
WO2007079299B1 (en
WO2007079299A2 (en
Inventor
Zili Li
George T Valliath
Dongxue Wang
Original Assignee
Motorola Inc
Zili Li
George T Valliath
Dongxue Wang
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 Motorola Inc, Zili Li, George T Valliath, Dongxue Wang filed Critical Motorola Inc
Priority to DE112006003610T priority Critical patent/DE112006003610T5/en
Publication of WO2007079299A2 publication Critical patent/WO2007079299A2/en
Publication of WO2007079299A3 publication Critical patent/WO2007079299A3/en
Publication of WO2007079299B1 publication Critical patent/WO2007079299B1/en

Links

Classifications

    • 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]
    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
    • G03B21/00—Projectors or projection-type viewers; Accessories therefor
    • G03B21/005—Projectors using an electronic spatial light modulator but not peculiar thereto
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/74—Projection arrangements for image reproduction, e.g. using eidophor

Abstract

The present invention provides a system for reducing the size of a projection display system. This is achieved by using an emissive imager that comprises a large number of emissive pixels. The emissive pixels provide both light output and light modulation functions. This eliminates the need for a separate illumination source. Each emissive pixel represents a pixel (or a sub- pixel for color projection) of an image to be projected. The light signals produced and modulated by the emissive imager are passed through a microlens array. The microlens array collects and reshapes the emitted light signals from the emissive pixels. Each microlens forms a light beam with a concentrated non-Lambertian radiation profile. The non-Lambertian radiation profile helps in effective collection of light at a projection lens. Finally, the projection lens collects this light and projects a magnified image on a projection screen.
PCT/US2006/061420 2005-12-28 2006-11-30 Compact projection display with emissive imager WO2007079299A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DE112006003610T DE112006003610T5 (en) 2005-12-28 2006-11-30 Compact projection display with emitting image generator

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US11/319,681 US20070146655A1 (en) 2005-12-28 2005-12-28 Compact projection display with emissive imager
US11/319,681 2005-12-28

Publications (3)

Publication Number Publication Date
WO2007079299A2 WO2007079299A2 (en) 2007-07-12
WO2007079299A3 true WO2007079299A3 (en) 2008-05-22
WO2007079299B1 WO2007079299B1 (en) 2008-07-10

Family

ID=38193232

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/US2006/061420 WO2007079299A2 (en) 2005-12-28 2006-11-30 Compact projection display with emissive imager

Country Status (3)

Country Link
US (1) US20070146655A1 (en)
DE (1) DE112006003610T5 (en)
WO (1) WO2007079299A2 (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7874486B2 (en) 2004-11-15 2011-01-25 Kuo-Ching Chiang Portable communication device with DMD
US7178735B2 (en) * 2004-11-15 2007-02-20 Kuo Ching Chiang Multi-function portable communication device
US9083781B2 (en) 2004-11-15 2015-07-14 Bascule Development Ag Llc Portable image-capturing device with embedded projector
US8640954B2 (en) 2007-04-10 2014-02-04 Bascule Development Ag Llc Filter-free projector
US20090115970A1 (en) * 2007-11-02 2009-05-07 Jabil Circuit, Inc. High efficiency compact oled microdisplay projection engine
US8251517B2 (en) * 2007-12-05 2012-08-28 Microvision, Inc. Scanned proximity detection method and apparatus for a scanned image projection system
US20090147272A1 (en) * 2007-12-05 2009-06-11 Microvision, Inc. Proximity detection for control of an imaging device
US20100321640A1 (en) * 2009-06-22 2010-12-23 Industrial Technology Research Institute Projection display chip
TWI459119B (en) * 2010-10-05 2014-11-01 Bascule Dev Ag Llc Mini-color image projector
FR3068484B1 (en) * 2017-06-29 2019-11-22 Commissariat A L'energie Atomique Et Aux Energies Alternatives COLOR PROJECTOR WITH TWO EMISSIVE SCREENS.
US11543648B2 (en) * 2017-12-01 2023-01-03 Hitachi-Lg Data Storage, Inc. Virtual image projection device
GB2593181B (en) 2020-03-17 2023-11-15 Plessey Semiconductors Ltd Micro-LED device
GB2595715B (en) 2020-06-04 2022-08-17 Plessey Semiconductors Ltd Enhanced colour conversion and collimation of micro-LED devices

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20020135883A1 (en) * 2001-03-23 2002-09-26 Takao Nishikawa Microlens array, manufacturing method thereof and optical instrument
US20050036199A1 (en) * 2001-01-17 2005-02-17 3M Innovative Properties Company Projection screen having elongated structures

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6227669B1 (en) * 1998-05-26 2001-05-08 Industrial Technology Research Institute Illumination device and image projection apparatus comprising the device
TW380213B (en) * 1999-01-21 2000-01-21 Ind Tech Res Inst Illumination apparatus and image projection apparatus includes the same
KR100440959B1 (en) * 2001-11-08 2004-07-21 삼성전자주식회사 Illumination system and projection system employing it
US6769772B2 (en) * 2002-10-11 2004-08-03 Eastman Kodak Company Six color display apparatus having increased color gamut
KR100619070B1 (en) * 2005-03-08 2006-08-31 삼성전자주식회사 Illuminating unit and projection type image display apparatus employing the same

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050036199A1 (en) * 2001-01-17 2005-02-17 3M Innovative Properties Company Projection screen having elongated structures
US20020135883A1 (en) * 2001-03-23 2002-09-26 Takao Nishikawa Microlens array, manufacturing method thereof and optical instrument

Also Published As

Publication number Publication date
DE112006003610T5 (en) 2008-11-13
WO2007079299B1 (en) 2008-07-10
US20070146655A1 (en) 2007-06-28
WO2007079299A2 (en) 2007-07-12

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