GB2408375B - Projection-type image display apparatus - Google Patents

Projection-type image display apparatus

Info

Publication number
GB2408375B
GB2408375B GB0422910A GB0422910A GB2408375B GB 2408375 B GB2408375 B GB 2408375B GB 0422910 A GB0422910 A GB 0422910A GB 0422910 A GB0422910 A GB 0422910A GB 2408375 B GB2408375 B GB 2408375B
Authority
GB
United Kingdom
Prior art keywords
projection
image display
display apparatus
type image
type
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.)
Expired - Fee Related
Application number
GB0422910A
Other languages
English (en)
Other versions
GB0422910D0 (en
GB2408375A (en
Inventor
Futoshi Yamasaki
Masahiko Yatsu
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Publication of GB0422910D0 publication Critical patent/GB0422910D0/en
Publication of GB2408375A publication Critical patent/GB2408375A/en
Application granted granted Critical
Publication of GB2408375B publication Critical patent/GB2408375B/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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]
    • H04N9/3141—Constructional details thereof
    • H04N9/315—Modulator illumination systems
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/3406—Control of illumination source
    • 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]
    • H04N9/3197—Projection devices for colour picture display, e.g. using electronic spatial light modulators [ESLM] using light modulating optical valves
    • 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
    • G02F1/1336—Illuminating devices
    • G02F1/133602—Direct backlight
    • G02F1/133603—Direct backlight with LEDs
    • 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
    • G02F1/1336—Illuminating devices
    • G02F1/133621—Illuminating devices providing coloured light

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Projection Apparatus (AREA)
  • Liquid Crystal (AREA)
  • Transforming Electric Information Into Light Information (AREA)
GB0422910A 2003-11-21 2004-10-14 Projection-type image display apparatus Expired - Fee Related GB2408375B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2003391622A JP2005156650A (ja) 2003-11-21 2003-11-21 投射型映像表示装置

Publications (3)

Publication Number Publication Date
GB0422910D0 GB0422910D0 (en) 2004-11-17
GB2408375A GB2408375A (en) 2005-05-25
GB2408375B true GB2408375B (en) 2007-01-17

Family

ID=33475609

Family Applications (1)

Application Number Title Priority Date Filing Date
GB0422910A Expired - Fee Related GB2408375B (en) 2003-11-21 2004-10-14 Projection-type image display apparatus

Country Status (4)

Country Link
US (1) US20050122481A1 (enExample)
JP (1) JP2005156650A (enExample)
CN (1) CN1619356A (enExample)
GB (1) GB2408375B (enExample)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2006301325A (ja) * 2005-04-21 2006-11-02 Victor Co Of Japan Ltd 画像表示装置
JP4904741B2 (ja) 2005-08-09 2012-03-28 株式会社日立製作所 投射型映像表示装置および遮光方法
TWI310924B (en) * 2005-11-10 2009-06-11 Delta Electronics Inc Display apparatus
WO2007087334A2 (en) * 2006-01-23 2007-08-02 Accu-Sport International, Inc. Imaging system and method including adaptive lighting
DE102006045440A1 (de) * 2006-09-26 2008-03-27 Osram Opto Semiconductors Gmbh Optisches Projektionsgerät
JP5002228B2 (ja) 2006-10-03 2012-08-15 キヤノン株式会社 画像表示装置
JP5075452B2 (ja) 2007-04-09 2012-11-21 三洋電機株式会社 投写型映像表示装置
KR101466119B1 (ko) * 2008-04-03 2014-11-27 삼성전자 주식회사 디스플레이장치 및 그 광조절방법
JP5380028B2 (ja) 2008-09-25 2014-01-08 日立コンシューマエレクトロニクス株式会社 投射型映像表示装置および投射方法
JP5193827B2 (ja) * 2008-11-28 2013-05-08 三洋電機株式会社 映像表示装置及び投写型映像表示装置
JP5660360B2 (ja) * 2010-02-02 2015-01-28 カシオ計算機株式会社 プロジェクタ及びプロジェクタの光源光学系検査方法
DE102010054449B4 (de) * 2010-12-14 2018-10-11 Trw Automotive Electronics & Components Gmbh Optische Projektionsvorrichtung
DE102011004882B4 (de) * 2011-03-01 2020-07-23 Osram Gmbh Leuchteinheit mit Beleuchtungseinheit und Projektionseinheit
US9462241B2 (en) * 2011-12-29 2016-10-04 Christie Digital Systems Usa, Inc. High efficiency dynamic color control management system
JP5862951B2 (ja) * 2012-03-21 2016-02-16 カシオ計算機株式会社 光源装置及びプロジェクタ
JP2013213897A (ja) * 2012-04-02 2013-10-17 Mitsubishi Electric Corp 映像表示装置およびマルチ画面表示装置
JP6019859B2 (ja) * 2012-07-17 2016-11-02 セイコーエプソン株式会社 プロジェクター、及び、プロジェクターにおける発光制御方法
JP6047968B2 (ja) 2012-07-17 2016-12-21 セイコーエプソン株式会社 プロジェクター、及び、プロジェクターにおける発光制御方法
CN110682855B (zh) * 2015-04-10 2023-04-18 麦克赛尔株式会社 车辆
JP6885735B2 (ja) * 2017-01-23 2021-06-16 浜松ホトニクス株式会社 走査装置
JP6880897B2 (ja) * 2017-03-27 2021-06-02 セイコーエプソン株式会社 照明装置及びプロジェクター
CN111580333A (zh) * 2020-07-01 2020-08-25 嘉兴麦远文化传媒有限公司 一种防止投影仪投映口温度过高的方法

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1022709A1 (en) * 1998-07-24 2000-07-26 Seiko Epson Corporation Display
JP2003121924A (ja) * 2001-10-09 2003-04-23 Seiko Epson Corp 照明装置とその駆動方法ならびに投射型表示装置とその駆動方法
JP2004093779A (ja) * 2002-08-30 2004-03-25 Seiko Epson Corp 照明装置、表示装置、投射型表示装置

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6215547B1 (en) * 1998-11-19 2001-04-10 Eastman Kodak Company Reflective liquid crystal modulator based printing system
US6357893B1 (en) * 2000-03-15 2002-03-19 Richard S. Belliveau Lighting devices using a plurality of light sources
JP2001350426A (ja) * 2000-06-08 2001-12-21 Canon Inc 画像表示装置、画像表示システム及び照明系
JP3852667B2 (ja) * 2000-07-11 2006-12-06 コニカミノルタオプト株式会社 投影装置
JP3914819B2 (ja) * 2002-05-24 2007-05-16 オリンパス株式会社 照明装置及び画像投影装置
US7289090B2 (en) * 2003-12-10 2007-10-30 Texas Instruments Incorporated Pulsed LED scan-ring array for boosting display system lumens
JP4616577B2 (ja) * 2004-04-22 2011-01-19 株式会社日立製作所 映像表示装置

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1022709A1 (en) * 1998-07-24 2000-07-26 Seiko Epson Corporation Display
JP2003121924A (ja) * 2001-10-09 2003-04-23 Seiko Epson Corp 照明装置とその駆動方法ならびに投射型表示装置とその駆動方法
JP2004093779A (ja) * 2002-08-30 2004-03-25 Seiko Epson Corp 照明装置、表示装置、投射型表示装置

Also Published As

Publication number Publication date
GB0422910D0 (en) 2004-11-17
JP2005156650A (ja) 2005-06-16
CN1619356A (zh) 2005-05-25
GB2408375A (en) 2005-05-25
US20050122481A1 (en) 2005-06-09

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Legal Events

Date Code Title Description
PCNP Patent ceased through non-payment of renewal fee

Effective date: 20121014