TW200630667A - Projection-type display apparatus - Google Patents

Projection-type display apparatus

Info

Publication number
TW200630667A
TW200630667A TW094142585A TW94142585A TW200630667A TW 200630667 A TW200630667 A TW 200630667A TW 094142585 A TW094142585 A TW 094142585A TW 94142585 A TW94142585 A TW 94142585A TW 200630667 A TW200630667 A TW 200630667A
Authority
TW
Taiwan
Prior art keywords
light
polarization
liquid crystal
projection
crystal panel
Prior art date
Application number
TW094142585A
Other languages
Chinese (zh)
Inventor
Koichi Murata
Mitsuo Osawa
Original Assignee
Asahi Glass Co Ltd
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 Asahi Glass Co Ltd filed Critical Asahi Glass Co Ltd
Publication of TW200630667A publication Critical patent/TW200630667A/en

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/30—Polarising elements
    • G02B5/3025—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state
    • G02B5/3033—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state in the form of a thin sheet or foil, e.g. Polaroid
    • G02B5/3041—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state in the form of a thin sheet or foil, e.g. Polaroid comprising multiple thin layers, e.g. multilayer stacks
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/10—Beam splitting or combining systems
    • G02B27/1006—Beam splitting or combining systems for splitting or combining different wavelengths
    • G02B27/102—Beam splitting or combining systems for splitting or combining different wavelengths for generating a colour image from monochromatic image signal sources
    • G02B27/1046—Beam splitting or combining systems for splitting or combining different wavelengths for generating a colour image from monochromatic image signal sources for use with transmissive spatial light modulators
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/10—Beam splitting or combining systems
    • G02B27/1086—Beam splitting or combining systems operating by diffraction only
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/10—Beam splitting or combining systems
    • G02B27/14—Beam splitting or combining systems operating by reflection only
    • G02B27/145—Beam splitting or combining systems operating by reflection only having sequential partially reflecting surfaces
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/10—Beam splitting or combining systems
    • G02B27/14—Beam splitting or combining systems operating by reflection only
    • G02B27/149—Beam splitting or combining systems operating by reflection only using crossed beamsplitting surfaces, e.g. cross-dichroic cubes or X-cubes
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
    • G02B27/28—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for polarising
    • G02B27/283—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00 for polarising used for beam splitting or combining
    • 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
    • G03B21/14—Details
    • G03B21/20—Lamp housings
    • G03B21/2073—Polarisers in the lamp house
    • 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
    • G03B33/00—Colour photography, other than mere exposure or projection of a colour film
    • G03B33/10—Simultaneous recording or projection
    • G03B33/12—Simultaneous recording or projection using beam-splitting or beam-combining systems, e.g. dichroic mirrors

Abstract

A projection-type display device having a light source for emitting visible light, a color separation means for separating incident light into light of wavelength regions, liquid crystal panels for modulating, according to an image to be displayed, light of each wavelength region entered by being guided by a reflection mirror provided according to need, a light synthesis means for synthesizing the light emitted from each of the liquid crystal panel, a projection means for enlarging and projecting the light synthesized by the light synthesis means, a first polarization means placed on the light path from the light source to each of the liquid crystal panel, and a second polarization means placed on the emission side of each of the liquid crystal panel. At least either the first polarization means or the second polarization means is constructed from a multilayer diffraction-type polarization element formed by layering polarization diffraction gratings. The multilayer diffraction-type polarization element causes incident light that is polarized in a first polarization direction to advance straightforward and be transmitted on an optical axis and diffracts incident light that is polarized in a second polarization direction orthogonal to the first polarization direction. The projection-type display device can provide a high extinction ratio stably, is compact, and is resistant to heat.
TW094142585A 2004-12-02 2005-12-02 Projection-type display apparatus TW200630667A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2004349899 2004-12-02

Publications (1)

Publication Number Publication Date
TW200630667A true TW200630667A (en) 2006-09-01

Family

ID=36565123

Family Applications (1)

Application Number Title Priority Date Filing Date
TW094142585A TW200630667A (en) 2004-12-02 2005-12-02 Projection-type display apparatus

Country Status (3)

Country Link
JP (2) JP4670813B2 (en)
TW (1) TW200630667A (en)
WO (1) WO2006059690A1 (en)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4670813B2 (en) * 2004-12-02 2011-04-13 旭硝子株式会社 Projection display
JP2008070567A (en) * 2006-09-13 2008-03-27 Ricoh Co Ltd Display device
WO2008047800A1 (en) * 2006-10-16 2008-04-24 Asahi Glass Co., Ltd. Projection type display device
JP5247328B2 (en) * 2008-09-24 2013-07-24 三洋電機株式会社 Projection display device
JP6147958B2 (en) * 2012-02-22 2017-06-14 旭化成株式会社 Optical apparatus and projection optical apparatus
JPWO2014010200A1 (en) * 2012-07-10 2016-06-20 日本電気株式会社 Optical element, optical device and display device
CN112433289A (en) * 2020-12-14 2021-03-02 山东理工大学 Processing method and processing system for multi-directional sub-wavelength metal grating polarizer array

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62125326A (en) * 1985-11-27 1987-06-06 Hitachi Ltd Color liquid crystal display
JPS62161119A (en) * 1986-01-10 1987-07-17 Hitachi Ltd Color liquid crystal display device
JPH0276143A (en) * 1988-09-12 1990-03-15 Hitachi Ltd Magneto-optical reproducing device
WO1990016006A1 (en) * 1989-06-22 1990-12-27 Citizen Watch Co., Ltd. Liquid crystal display device and phase difference plates
JPH05323311A (en) * 1992-05-21 1993-12-07 Matsushita Electric Ind Co Ltd Liquid crystal display device and liquid crystal projection type television using the same
JP2848137B2 (en) * 1992-07-10 1999-01-20 日本電気株式会社 Birefringent diffraction grating polarizer
JPH095522A (en) * 1995-06-22 1997-01-10 Nippon Electric Glass Co Ltd Non-polarizing beam splitter
JP3918416B2 (en) * 2000-01-28 2007-05-23 セイコーエプソン株式会社 Projection display
JP4792679B2 (en) * 2001-08-24 2011-10-12 旭硝子株式会社 Isolator and variable voltage attenuator
JP2004109826A (en) * 2002-09-20 2004-04-08 Seiko Epson Corp Liquid crystal device and projection type display device
JP2004184889A (en) * 2002-12-06 2004-07-02 Hitachi Ltd Projection image display device
JP4670813B2 (en) * 2004-12-02 2011-04-13 旭硝子株式会社 Projection display

Also Published As

Publication number Publication date
JP4670813B2 (en) 2011-04-13
JP4900438B2 (en) 2012-03-21
JPWO2006059690A1 (en) 2008-06-05
JP2009294679A (en) 2009-12-17
WO2006059690A1 (en) 2006-06-08

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