WO2007043221A1 - Dispositif d’affichage et dispositif d’eclairage - Google Patents

Dispositif d’affichage et dispositif d’eclairage Download PDF

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Publication number
WO2007043221A1
WO2007043221A1 PCT/JP2006/313280 JP2006313280W WO2007043221A1 WO 2007043221 A1 WO2007043221 A1 WO 2007043221A1 JP 2006313280 W JP2006313280 W JP 2006313280W WO 2007043221 A1 WO2007043221 A1 WO 2007043221A1
Authority
WO
WIPO (PCT)
Prior art keywords
air
lighting device
flow rate
exhaust
casing
Prior art date
Application number
PCT/JP2006/313280
Other languages
English (en)
Japanese (ja)
Other versions
WO2007043221A9 (fr
Inventor
Daisuke Teragawa
Original Assignee
Sharp Kabushiki Kaisha
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 Sharp Kabushiki Kaisha filed Critical Sharp Kabushiki Kaisha
Publication of WO2007043221A1 publication Critical patent/WO2007043221A1/fr
Publication of WO2007043221A9 publication Critical patent/WO2007043221A9/fr

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V29/00—Protecting lighting devices from thermal damage; Cooling or heating arrangements specially adapted for lighting devices or systems
    • F21V29/50—Cooling arrangements
    • F21V29/60—Cooling arrangements characterised by the use of a forced flow of gas, e.g. air
    • F21V29/67—Cooling arrangements characterised by the use of a forced flow of gas, e.g. air characterised by the arrangement of fans
    • 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
    • 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
    • G02F1/133628—Illuminating devices with cooling means

Abstract

L’invention concerne un dispositif d’affichage dont la zone d’affichage présente une luminosité uniforme du fait de la température uniforme dans son boîtier et des caractéristiques d’émission de lumière uniformes de ses sources de lumière. Le dispositif d’affichage (100) comprend un panneau d’affichage et un dispositif d’éclairage (20) comportant des sources de lumière (24) disposées dans un boîtier (40). Le dispositif d’affichage (100) comprend en outre une partie d’évacuation d’air (44) servant à évacuer vers l’extérieur l’air présent dans le boîtier (40) chauffé par les sources de lumière (24) et par des sources de chaleur d’autres circuits électriques, et une partie d’aspiration d’air (46) servant à aspirer de l’air de l’extérieur du boîtier. La partie d’évacuation d’air (44) est placée en dessous de la partie d’aspiration d’air (46), et l’air présent dans le boîtier (40) est évacué en s’écoulant du dessus vers le bas en uniformisant ainsi la température dans le boîtier (40).
PCT/JP2006/313280 2005-09-30 2006-07-04 Dispositif d’affichage et dispositif d’eclairage WO2007043221A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2005286805 2005-09-30
JP2005-286805 2005-09-30

Publications (2)

Publication Number Publication Date
WO2007043221A1 true WO2007043221A1 (fr) 2007-04-19
WO2007043221A9 WO2007043221A9 (fr) 2007-06-14

Family

ID=37942483

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2006/313280 WO2007043221A1 (fr) 2005-09-30 2006-07-04 Dispositif d’affichage et dispositif d’eclairage

Country Status (1)

Country Link
WO (1) WO2007043221A1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4844698B1 (ja) * 2011-07-11 2011-12-28 パナソニック株式会社 照明装置及び照明装置用送風ユニット
JP4900531B1 (ja) * 2011-10-07 2012-03-21 パナソニック株式会社 照明装置及び照明装置用送風ユニット

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04271334A (ja) * 1991-02-27 1992-09-28 Casio Comput Co Ltd 液晶プロジェクタ
JPH07335015A (ja) * 1994-06-10 1995-12-22 Hitachi Ltd 表示装置
JP2001100043A (ja) * 1999-09-30 2001-04-13 Fuji Photo Film Co Ltd 偏光板
WO2002056110A1 (fr) * 2001-01-15 2002-07-18 Seiko Epson Corporation Projecteur
JP2005195623A (ja) * 2003-12-26 2005-07-21 Fujitsu Display Technologies Corp 液晶表示装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH04271334A (ja) * 1991-02-27 1992-09-28 Casio Comput Co Ltd 液晶プロジェクタ
JPH07335015A (ja) * 1994-06-10 1995-12-22 Hitachi Ltd 表示装置
JP2001100043A (ja) * 1999-09-30 2001-04-13 Fuji Photo Film Co Ltd 偏光板
WO2002056110A1 (fr) * 2001-01-15 2002-07-18 Seiko Epson Corporation Projecteur
JP2005195623A (ja) * 2003-12-26 2005-07-21 Fujitsu Display Technologies Corp 液晶表示装置

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4844698B1 (ja) * 2011-07-11 2011-12-28 パナソニック株式会社 照明装置及び照明装置用送風ユニット
JP4900531B1 (ja) * 2011-10-07 2012-03-21 パナソニック株式会社 照明装置及び照明装置用送風ユニット

Also Published As

Publication number Publication date
WO2007043221A9 (fr) 2007-06-14

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