JP5936453B2 - バックライト装置 - Google Patents

バックライト装置 Download PDF

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Publication number
JP5936453B2
JP5936453B2 JP2012132878A JP2012132878A JP5936453B2 JP 5936453 B2 JP5936453 B2 JP 5936453B2 JP 2012132878 A JP2012132878 A JP 2012132878A JP 2012132878 A JP2012132878 A JP 2012132878A JP 5936453 B2 JP5936453 B2 JP 5936453B2
Authority
JP
Japan
Prior art keywords
light
liquid crystal
backlight device
guide plate
light emitting
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
JP2012132878A
Other languages
English (en)
Japanese (ja)
Other versions
JP2013020242A (ja
Inventor
知典 宮本
知典 宮本
昭佳 金光
昭佳 金光
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.)
Sumitomo Chemical Co Ltd
Original Assignee
Sumitomo Chemical 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 Sumitomo Chemical Co Ltd filed Critical Sumitomo Chemical Co Ltd
Priority to JP2012132878A priority Critical patent/JP5936453B2/ja
Publication of JP2013020242A publication Critical patent/JP2013020242A/ja
Application granted granted Critical
Publication of JP5936453B2 publication Critical patent/JP5936453B2/ja
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0033—Means for improving the coupling-out of light from the light guide
    • G02B6/005—Means for improving the coupling-out of light from the light guide provided by one optical element, or plurality thereof, placed on the light output side of the light guide
    • G02B6/0053—Prismatic sheet or layer; Brightness enhancement element, sheet or layer
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0033—Means for improving the coupling-out of light from the light guide
    • G02B6/0035—Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it
    • G02B6/0045—Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it by shaping at least a portion of the light guide
    • G02B6/0046—Tapered light guide, e.g. wedge-shaped light guide
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0075—Arrangements of multiple light guides
    • G02B6/0078—Side-by-side arrangements, e.g. for large area displays
    • 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
    • G02F1/133607—Direct backlight including a specially adapted diffusing, scattering or light controlling members the light controlling member including light directing or refracting elements, e.g. prisms or lenses

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Planar Illumination Modules (AREA)
  • Liquid Crystal (AREA)
  • Optical Elements Other Than Lenses (AREA)
JP2012132878A 2011-06-14 2012-06-12 バックライト装置 Expired - Fee Related JP5936453B2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2012132878A JP5936453B2 (ja) 2011-06-14 2012-06-12 バックライト装置

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2011131918 2011-06-14
JP2011131918 2011-06-14
JP2012132878A JP5936453B2 (ja) 2011-06-14 2012-06-12 バックライト装置

Publications (2)

Publication Number Publication Date
JP2013020242A JP2013020242A (ja) 2013-01-31
JP5936453B2 true JP5936453B2 (ja) 2016-06-22

Family

ID=47357104

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2012132878A Expired - Fee Related JP5936453B2 (ja) 2011-06-14 2012-06-12 バックライト装置

Country Status (3)

Country Link
JP (1) JP5936453B2 (zh)
TW (1) TW201307964A (zh)
WO (1) WO2012173117A1 (zh)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6310645B2 (ja) 2013-05-20 2018-04-11 日東電工株式会社 光学部材、偏光板のセットおよび液晶表示装置

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001167622A (ja) * 1999-12-07 2001-06-22 Casio Comput Co Ltd 光源装置
JP3959024B2 (ja) * 2000-07-24 2007-08-15 三菱レイヨン株式会社 面光源装置及びそれに用いるプリズムシート
TWI258023B (en) * 2001-11-07 2006-07-11 Ibm A prism sheet, a back-light unit using said prism sheet, and a transmission type liquid crystal display device
TW200424565A (en) * 2003-03-14 2004-11-16 Zeon Corp Light guide plate
JP4709704B2 (ja) * 2006-07-12 2011-06-22 ダイセル化学工業株式会社 面状光源装置
JP2010531045A (ja) * 2007-06-22 2010-09-16 スリーエム イノベイティブ プロパティズ カンパニー バックライト出力特性を制御するシステム及び方法
JP2010210904A (ja) * 2009-03-10 2010-09-24 Hitachi Maxell Ltd 光拡散シート、それを用いたバックライト装置及び液晶表示装置
JP5195719B2 (ja) * 2009-11-09 2013-05-15 カシオ計算機株式会社 液晶表示装置

Also Published As

Publication number Publication date
JP2013020242A (ja) 2013-01-31
WO2012173117A1 (ja) 2012-12-20
TW201307964A (zh) 2013-02-16

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