WO2008093609A1 - バックライト装置、表示装置及びバックライト装置に用いられる光学部材 - Google Patents

バックライト装置、表示装置及びバックライト装置に用いられる光学部材 Download PDF

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Publication number
WO2008093609A1
WO2008093609A1 PCT/JP2008/051066 JP2008051066W WO2008093609A1 WO 2008093609 A1 WO2008093609 A1 WO 2008093609A1 JP 2008051066 W JP2008051066 W JP 2008051066W WO 2008093609 A1 WO2008093609 A1 WO 2008093609A1
Authority
WO
WIPO (PCT)
Prior art keywords
backlight device
optical member
sheet
diffusion sheet
light source
Prior art date
Application number
PCT/JP2008/051066
Other languages
English (en)
French (fr)
Inventor
Yukinori Yamada
Motoshi Uehara
Nobuyasu Ishihara
Original Assignee
Hitachi Maxell, 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 Maxell, Ltd. filed Critical Hitachi Maxell, Ltd.
Publication of WO2008093609A1 publication Critical patent/WO2008093609A1/ja

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Classifications

    • 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
    • G02F1/133611—Direct backlight including means for improving the brightness uniformity
    • 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
    • G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Liquid Crystal (AREA)
  • Planar Illumination Modules (AREA)
  • Optical Elements Other Than Lenses (AREA)

Abstract

　バックライト装置は、面光源と、面光源上に敷設された光学部材１５とを備える。光学部材１５は、拡散シート３１と、レンチキュラレンズシート３２とを備える。拡散シート３１は、面光源と対向する第１の平面と、第１の平面と反対側であって複数の凸部が形成されたレンズ面とを有する。レンチキュラレンズシート３２は、拡散シート３１上に敷設される。レンチキュラレンズシート３２は、拡散シート３１と対向する第２の平面と、第２の平面と反対側であって、互いに並設された複数のシリンドリカルレンズが形成されたシリンドリカルレンズ面とを有する。そのため、バックライト装置は、高い正面輝度を有し、かつ、幅の広い輝度角度分布を有する。
PCT/JP2008/051066 2007-01-29 2008-01-25 バックライト装置、表示装置及びバックライト装置に用いられる光学部材 WO2008093609A1 (ja)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2007-018119 2007-01-29
JP2007018120 2007-01-29
JP2007-018120 2007-01-29
JP2007018119 2007-01-29

Publications (1)

Publication Number Publication Date
WO2008093609A1 true WO2008093609A1 (ja) 2008-08-07

Family

ID=39673921

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2008/051066 WO2008093609A1 (ja) 2007-01-29 2008-01-25 バックライト装置、表示装置及びバックライト装置に用いられる光学部材

Country Status (2)

Country Link
JP (1) JP2008210790A (ja)
WO (1) WO2008093609A1 (ja)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003100444A (ja) * 2001-09-26 2003-04-04 Keiwa Inc 面照明装置
JP2006189600A (ja) * 2005-01-06 2006-07-20 Dainippon Printing Co Ltd レンチキュラーレンズシート、面光源装置、透過型表示装置
JP2006208968A (ja) * 2005-01-31 2006-08-10 Sumitomo Rubber Ind Ltd 直下型バックライト用拡散板、及び直下型バックライト
JP2007003567A (ja) * 2005-06-21 2007-01-11 Dainippon Printing Co Ltd 光制御シート、及び、面光源装置
JP2007012517A (ja) * 2005-07-01 2007-01-18 Dainippon Printing Co Ltd 面光源装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003100444A (ja) * 2001-09-26 2003-04-04 Keiwa Inc 面照明装置
JP2006189600A (ja) * 2005-01-06 2006-07-20 Dainippon Printing Co Ltd レンチキュラーレンズシート、面光源装置、透過型表示装置
JP2006208968A (ja) * 2005-01-31 2006-08-10 Sumitomo Rubber Ind Ltd 直下型バックライト用拡散板、及び直下型バックライト
JP2007003567A (ja) * 2005-06-21 2007-01-11 Dainippon Printing Co Ltd 光制御シート、及び、面光源装置
JP2007012517A (ja) * 2005-07-01 2007-01-18 Dainippon Printing Co Ltd 面光源装置

Also Published As

Publication number Publication date
JP2008210790A (ja) 2008-09-11

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