TW200743832A - Light guide plate of a backlight unit and method for manufacturing the same - Google Patents

Light guide plate of a backlight unit and method for manufacturing the same

Info

Publication number
TW200743832A
TW200743832A TW096100157A TW96100157A TW200743832A TW 200743832 A TW200743832 A TW 200743832A TW 096100157 A TW096100157 A TW 096100157A TW 96100157 A TW96100157 A TW 96100157A TW 200743832 A TW200743832 A TW 200743832A
Authority
TW
Taiwan
Prior art keywords
guide plate
light guide
light
manufacturing
same
Prior art date
Application number
TW096100157A
Other languages
Chinese (zh)
Inventor
Ji-Hwan Lee
Young-Keun Lee
Jin-Sun Kwon
Original Assignee
Taesan Lcd 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 Taesan Lcd Co Ltd filed Critical Taesan Lcd Co Ltd
Publication of TW200743832A publication Critical patent/TW200743832A/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
    • 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
    • G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
    • G02B6/0015—Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it
    • G02B6/0016—Grooves, prisms, gratings, scattering particles or rough surfaces
    • 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
    • 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
    • G02F1/133606—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)
  • Nonlinear Science (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Planar Illumination Modules (AREA)
  • Light Guides In General And Applications Therefor (AREA)
  • Liquid Crystal (AREA)

Abstract

To provide a light guide plate that can produce a wide viewing angle characteristic as well as a high luminance characteristic, and to provide a method capable of efficient mass production of the light guide plate. The light guide plate for a back light unit is installed so as to convert the mode and path of incident light from a light source. For reflecting the incident light from the light source, the light guide plate is provided with a prism pattern formed on one surface and a scattering pattern minutely formed on the prism pattern to scatter the incident light.
TW096100157A 2006-05-22 2007-01-03 Light guide plate of a backlight unit and method for manufacturing the same TW200743832A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020060045535A KR100845738B1 (en) 2006-05-22 2006-05-22 Prism type light guide plate of a backlight unit and method

Publications (1)

Publication Number Publication Date
TW200743832A true TW200743832A (en) 2007-12-01

Family

ID=38843220

Family Applications (1)

Application Number Title Priority Date Filing Date
TW096100157A TW200743832A (en) 2006-05-22 2007-01-03 Light guide plate of a backlight unit and method for manufacturing the same

Country Status (4)

Country Link
JP (1) JP2007310360A (en)
KR (1) KR100845738B1 (en)
CN (1) CN101078797A (en)
TW (1) TW200743832A (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100773718B1 (en) * 2006-05-22 2007-11-06 태산엘시디 주식회사 Method for manufacturing a light guide plate of the backlight unit
KR101429176B1 (en) * 2008-04-24 2014-08-13 삼성디스플레이 주식회사 Back-light assembly and display device having the same
KR100898100B1 (en) * 2008-07-29 2009-05-18 이대환 Prism sheet
US8730579B2 (en) 2008-07-29 2014-05-20 Dae-Hwan Lee Optical sheet having enhanced optical characteristics
KR101039321B1 (en) * 2008-09-10 2011-06-08 태산엘시디 주식회사 back light unit
KR101302402B1 (en) * 2011-02-01 2013-09-02 레이젠 주식회사 Stamper For Manufacturing Light Guide Panel And Manufacturing Method Thereof
KR101328445B1 (en) * 2012-06-08 2013-11-14 레이젠 주식회사 Manufacturing method of stamper for light guide plate
KR102090461B1 (en) * 2013-03-29 2020-03-19 엘지디스플레이 주식회사 Liquid crystal display device
CN109212654B (en) * 2017-06-30 2021-06-08 扬昕科技(苏州)有限公司 Light guide plate
KR102422135B1 (en) * 2017-07-07 2022-07-18 삼성디스플레이 주식회사 Optical member, display including the same and method for fabricating the optical member

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001124930A (en) * 1999-10-29 2001-05-11 Nippon Leiz Co Ltd Light transmission plate and planar illuminator
KR100745405B1 (en) * 2001-02-26 2007-08-02 삼성전자주식회사 Liquid Crystal Display having a novel back-light assembly
JP2002286938A (en) * 2001-03-23 2002-10-03 Yuka Denshi Co Ltd Light transmission body and surface light source device and liquid crystal display device using the body
KR100495230B1 (en) 2002-05-14 2005-06-14 (주)나노디스플레이 Manufacturing method of a core of a die for light guide pannel with a prism pattern
US7478942B2 (en) * 2003-01-23 2009-01-20 Samsung Electronics Co., Ltd. Light guide plate with light reflection pattern
KR20050044961A (en) * 2003-11-08 2005-05-16 삼성전자주식회사 Light guide plate and back light assembly having the same
KR20050103329A (en) 2004-04-26 2005-10-31 레이젠 주식회사 Light guide panel of prism with minute prominence and depression in the surface and this method
JP4599215B2 (en) * 2005-04-18 2010-12-15 株式会社エス・ケー・ジー Light guide plate device and display device

Also Published As

Publication number Publication date
CN101078797A (en) 2007-11-28
KR20070112526A (en) 2007-11-27
JP2007310360A (en) 2007-11-29
KR100845738B1 (en) 2008-07-11

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