TWI263093B - Diffusion plate and direct backlight - Google Patents

Diffusion plate and direct backlight

Info

Publication number
TWI263093B
TWI263093B TW093100017A TW93100017A TWI263093B TW I263093 B TWI263093 B TW I263093B TW 093100017 A TW093100017 A TW 093100017A TW 93100017 A TW93100017 A TW 93100017A TW I263093 B TWI263093 B TW I263093B
Authority
TW
Taiwan
Prior art keywords
diffusion
light
base layer
diffusion plate
layer
Prior art date
Application number
TW093100017A
Other languages
Chinese (zh)
Other versions
TW200426464A (en
Inventor
Atsushi Hanyu
Original Assignee
Sumitomo Rubber Ind
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 Rubber Ind filed Critical Sumitomo Rubber Ind
Publication of TW200426464A publication Critical patent/TW200426464A/en
Application granted granted Critical
Publication of TWI263093B publication Critical patent/TWI263093B/en

Links

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
    • G02F1/133604—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
    • 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
    • G02F1/133608—Direct backlight including particular frames or supporting means
    • 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
    • G02F2201/00—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00
    • G02F2201/46—Fixing elements

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

A direct backlight is provided for suppressing a lamp image and preventing a brightness reduction on a light emitting surface. A diffusion plate uses the light from the backlight to form a light emission plane. The diffusion plate comprises a diffusion base layer 51 and a diffusion beads layer 54. The diffusion base layer 51 is plate-shaped and possesses a function of light diffusion, and the diffusion beads layer 54 is formed on at least one of the light incident plane 52 and the light emitting plane 53 of the diffusion base layer 51. The light incident to the diffusion plate will be diffused at the diffusion base layer 51 and the diffusion beads layer 54.
TW093100017A 2003-01-31 2004-01-02 Diffusion plate and direct backlight TWI263093B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2003024738A JP2004235103A (en) 2003-01-31 2003-01-31 Directly-under type backlight

Publications (2)

Publication Number Publication Date
TW200426464A TW200426464A (en) 2004-12-01
TWI263093B true TWI263093B (en) 2006-10-01

Family

ID=32953195

Family Applications (1)

Application Number Title Priority Date Filing Date
TW093100017A TWI263093B (en) 2003-01-31 2004-01-02 Diffusion plate and direct backlight

Country Status (3)

Country Link
JP (1) JP2004235103A (en)
KR (2) KR20040070016A (en)
TW (1) TWI263093B (en)

Families Citing this family (35)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101095631B1 (en) * 2004-11-06 2011-12-19 삼성전자주식회사 Light diffusion member, back light assembly having the same and display device having the same
TWI396013B (en) * 2004-12-21 2013-05-11 Samsung Display Co Ltd Backlight assembly and display device having the same
TWI406042B (en) * 2004-12-27 2013-08-21 Samsung Display Co Ltd Receiving container, backlight assembly having the receiving container, and display device having the backlight assembly
JPWO2006070646A1 (en) * 2004-12-28 2008-06-12 シャープ株式会社 Backlight unit and display device having the same
US7766500B2 (en) 2005-03-10 2010-08-03 Sharp Kabushiki Kaisha Backlight unit, and a display device including the same
KR101252272B1 (en) * 2005-06-30 2013-04-05 엘지이노텍 주식회사 Diffuser Plate and Back Light Unit using the same
JP2007042462A (en) * 2005-08-03 2007-02-15 Citizen Electronics Co Ltd Both-side emission lighting unit
JPWO2007037250A1 (en) * 2005-09-28 2009-04-09 日本ゼオン株式会社 Light diffusion plate and backlight device
JP2007271883A (en) * 2006-03-31 2007-10-18 Harison Toshiba Lighting Corp Liquid crystal display device
KR100811531B1 (en) * 2006-05-09 2008-03-07 엘지전자 주식회사 Back light unit and liquid crystal display having a diffusing plate
KR101323548B1 (en) * 2006-06-30 2013-10-29 엘지디스플레이 주식회사 Backlight assembly and liquid crystal display device having the same
US7905650B2 (en) * 2006-08-25 2011-03-15 3M Innovative Properties Company Backlight suitable for display devices
JP4887378B2 (en) 2007-01-19 2012-02-29 シャープ株式会社 Backlight unit and liquid crystal display device
JP4549358B2 (en) * 2007-02-20 2010-09-22 シャープ株式会社 Backlight device and display device
BRPI0812402B1 (en) 2007-06-13 2019-02-26 Thomson Licensing IMAGE DISPLAY DEVICE UNDERSTANDING TWO MODULATION STAGES
JP4985154B2 (en) 2007-07-03 2012-07-25 ソニー株式会社 Light source device, display device, and optical member
DE102007036468A1 (en) 2007-07-23 2009-01-29 Evonik Röhm Gmbh Rear element for a motor vehicle comprising a lighting unit
KR100786118B1 (en) * 2007-08-08 2007-12-18 주식회사 엘지에스 Backlight unit having foam resin diffusive layer
CN102265086A (en) 2008-12-25 2011-11-30 夏普株式会社 Frame, light source device, display device, and television receiver
EP2491440A4 (en) 2009-10-24 2018-05-02 3M Innovative Properties Company Voided diffuser
JP2013508923A (en) 2009-10-24 2013-03-07 スリーエム イノベイティブ プロパティズ カンパニー Light source and display system incorporating the light source
US8950924B2 (en) 2009-12-08 2015-02-10 3M Innovative Properties Company Optical constructions incorporating a light guide and low refractive index films
JP2011227265A (en) * 2010-04-19 2011-11-10 Sumitomo Chemical Co Ltd Resin sheet and liquid crystal display device
TWI432850B (en) * 2011-12-30 2014-04-01 Au Optronics Corp Direct type backlight module and display panel using the same
CN102661548A (en) * 2012-05-02 2012-09-12 浙江全加好科技有限公司 High-power LED (light-emitting diode) landscape lamp provided with metal heat abstractor
CN102661546A (en) * 2012-05-02 2012-09-12 浙江全加好科技有限公司 High-power LED (Light Emitting Diode) lawn lamp with metal radiator
EP2765451B1 (en) * 2013-02-08 2019-05-01 Samsung Electronics Co., Ltd Backlit display apparatus having a diffusing plate fixed by a fixing member
US9791739B2 (en) * 2013-07-30 2017-10-17 Sakai Display Products Corporation Light source device and display apparatus
JP6300147B2 (en) * 2014-02-05 2018-03-28 パナソニックＩｐマネジメント株式会社 Lighting device
KR20160095396A (en) * 2015-02-03 2016-08-11 타이코에이엠피 주식회사 Usb connector
KR102395088B1 (en) * 2015-11-26 2022-05-04 엘지디스플레이 주식회사 Backlight unit and liquid crystal dispaly device including the same
KR200484680Y1 (en) 2017-07-19 2017-10-17 한은희 Semi automatic rotary type mop
CN109407396A (en) * 2018-10-23 2019-03-01 惠州市华星光电技术有限公司 A kind of liquid crystal display device
CN112128721A (en) * 2020-09-17 2020-12-25 上海边光实业有限公司 Luminous brick
CN115128864A (en) * 2021-03-24 2022-09-30 瑞轩科技股份有限公司 Display device, backlight module and assembling method of backlight module

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0573602A (en) * 1991-09-17 1993-03-26 Oki Electric Ind Co Ltd Automatic transaction device
KR20000003630A (en) * 1998-06-29 2000-01-15 김영환 Resistance of semiconductor device
TWI276861B (en) * 2001-03-07 2007-03-21 Nitto Denko Corp Liquid crystal cell substrate, the method of producing the same and the liquid crystal display using the same

Also Published As

Publication number Publication date
KR20060134883A (en) 2006-12-28
KR100710242B1 (en) 2007-04-20
JP2004235103A (en) 2004-08-19
KR20040070016A (en) 2004-08-06
TW200426464A (en) 2004-12-01

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