WO2009066357A1 - 液晶テレビ用レンズ状拡散シート、該拡散シートを用いた直下型バックライト、及び該バックライトを組み込んだ液晶テレビ - Google Patents

液晶テレビ用レンズ状拡散シート、該拡散シートを用いた直下型バックライト、及び該バックライトを組み込んだ液晶テレビ Download PDF

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Publication number
WO2009066357A1
WO2009066357A1 PCT/JP2007/001288 JP2007001288W WO2009066357A1 WO 2009066357 A1 WO2009066357 A1 WO 2009066357A1 JP 2007001288 W JP2007001288 W JP 2007001288W WO 2009066357 A1 WO2009066357 A1 WO 2009066357A1
Authority
WO
WIPO (PCT)
Prior art keywords
diffusion sheet
liquid crystal
lens
crystal television
backlight
Prior art date
Application number
PCT/JP2007/001288
Other languages
English (en)
French (fr)
Inventor
Noriaki Okunaka
Yukinobu Yamazaki
Makoto Ijiri
Shunichi Umemoto
Original Assignee
Goyo Paper Working 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 Goyo Paper Working Co., Ltd. filed Critical Goyo Paper Working Co., Ltd.
Priority to PCT/JP2007/001288 priority Critical patent/WO2009066357A1/ja
Priority to JP2007556189A priority patent/JP4246781B1/ja
Publication of WO2009066357A1 publication Critical patent/WO2009066357A1/ja

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Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/02—Diffusing elements; Afocal elements
    • G02B5/0273—Diffusing elements; Afocal elements characterized by the use
    • G02B5/0278—Diffusing elements; Afocal elements characterized by the use used in transmission
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/02—Diffusing elements; Afocal elements
    • G02B5/0205—Diffusing elements; Afocal elements characterised by the diffusing properties
    • G02B5/021—Diffusing elements; Afocal elements characterised by the diffusing properties the diffusion taking place at the element's surface, e.g. by means of surface roughening or microprismatic structures
    • G02B5/0231—Diffusing elements; Afocal elements characterised by the diffusing properties the diffusion taking place at the element's surface, e.g. by means of surface roughening or microprismatic structures the surface having microprismatic or micropyramidal shape
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/02—Diffusing elements; Afocal elements
    • G02B5/0205—Diffusing elements; Afocal elements characterised by the diffusing properties
    • G02B5/0236—Diffusing elements; Afocal elements characterised by the diffusing properties the diffusion taking place within the volume of the element
    • G02B5/0242—Diffusing elements; Afocal elements characterised by the diffusing properties the diffusion taking place within the volume of the element by means of dispersed particles
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/04—Prisms
    • G02B5/045—Prism arrays
    • 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
    • G02F1/133604—Direct backlight with lamps
    • 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)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Chemical & Material Sciences (AREA)
  • Dispersion Chemistry (AREA)
  • Optical Elements Other Than Lenses (AREA)
  • Liquid Crystal (AREA)

Abstract

　拡散材を含む透明高分子でプリズム形状部の単位からなるレンズ部を多数配列した構造面を有するレンズ状拡散シートであって、該プリズム形状部の長軸方向の出射範囲が、これと垂直方向の出射範囲より大きいことを特徴とするもので、レンズ状拡散シートの該レンズ部の長軸方向が液晶テレビの長手方向にほぼ一致するように設置して使用される。本発明のレンズ状拡散シートは光源の存在個所が見え難く、表示面の正面が明るく、且つ左右の方向にも明るさを確保し、高い品位を有するとともに、部品数を減じて組立てを簡単にすることが可能である。
PCT/JP2007/001288 2007-11-22 2007-11-22 液晶テレビ用レンズ状拡散シート、該拡散シートを用いた直下型バックライト、及び該バックライトを組み込んだ液晶テレビ WO2009066357A1 (ja)

Priority Applications (2)

Application Number Priority Date Filing Date Title
PCT/JP2007/001288 WO2009066357A1 (ja) 2007-11-22 2007-11-22 液晶テレビ用レンズ状拡散シート、該拡散シートを用いた直下型バックライト、及び該バックライトを組み込んだ液晶テレビ
JP2007556189A JP4246781B1 (ja) 2007-11-22 2007-11-22 液晶テレビ用直下型バックライトの光源装置、及び該光源装置を組み込んだ液晶テレビ

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2007/001288 WO2009066357A1 (ja) 2007-11-22 2007-11-22 液晶テレビ用レンズ状拡散シート、該拡散シートを用いた直下型バックライト、及び該バックライトを組み込んだ液晶テレビ

Publications (1)

Publication Number Publication Date
WO2009066357A1 true WO2009066357A1 (ja) 2009-05-28

Family

ID=40612060

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/JP2007/001288 WO2009066357A1 (ja) 2007-11-22 2007-11-22 液晶テレビ用レンズ状拡散シート、該拡散シートを用いた直下型バックライト、及び該バックライトを組み込んだ液晶テレビ

Country Status (2)

Country Link
JP (1) JP4246781B1 (ja)
WO (1) WO2009066357A1 (ja)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001021706A (ja) * 1999-07-02 2001-01-26 Dainippon Printing Co Ltd 光拡散フィルム、面光源装置、及び表示装置
JP2005316095A (ja) * 2004-04-28 2005-11-10 Toray Ind Inc 異方拡散フィルム
JP2005338681A (ja) * 2004-05-31 2005-12-08 Toppan Printing Co Ltd 光拡散シート、その光拡散シートを備えたレンチキュラーシートおよび透過型スクリーン
JP2006066074A (ja) * 2004-08-24 2006-03-09 Nippon Zeon Co Ltd 直下型バックライト装置
JP2007225972A (ja) * 2006-02-24 2007-09-06 Toppan Printing Co Ltd 光拡散フィルム、光学部材、背面投射型スクリーン及び背面投射型ディスプレイ装置

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001021706A (ja) * 1999-07-02 2001-01-26 Dainippon Printing Co Ltd 光拡散フィルム、面光源装置、及び表示装置
JP2005316095A (ja) * 2004-04-28 2005-11-10 Toray Ind Inc 異方拡散フィルム
JP2005338681A (ja) * 2004-05-31 2005-12-08 Toppan Printing Co Ltd 光拡散シート、その光拡散シートを備えたレンチキュラーシートおよび透過型スクリーン
JP2006066074A (ja) * 2004-08-24 2006-03-09 Nippon Zeon Co Ltd 直下型バックライト装置
JP2007225972A (ja) * 2006-02-24 2007-09-06 Toppan Printing Co Ltd 光拡散フィルム、光学部材、背面投射型スクリーン及び背面投射型ディスプレイ装置

Also Published As

Publication number Publication date
JPWO2009066357A1 (ja) 2011-03-31
JP4246781B1 (ja) 2009-04-02

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