TWI277806B - Light-guide plate of backlight unit - Google Patents

Light-guide plate of backlight unit Download PDF

Info

Publication number
TWI277806B
TWI277806B TW094133931A TW94133931A TWI277806B TW I277806 B TWI277806 B TW I277806B TW 094133931 A TW094133931 A TW 094133931A TW 94133931 A TW94133931 A TW 94133931A TW I277806 B TWI277806 B TW I277806B
Authority
TW
Taiwan
Prior art keywords
light
guide plate
light guide
backlight unit
lens portion
Prior art date
Application number
TW094133931A
Other languages
English (en)
Chinese (zh)
Other versions
TW200710504A (en
Inventor
Seong-Eun Chung
Tae-Ho Kim
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 TW200710504A publication Critical patent/TW200710504A/zh
Application granted granted Critical
Publication of TWI277806B publication Critical patent/TWI277806B/zh

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
    • G02F1/133524—Light-guides, e.g. fibre-optic bundles, louvered or jalousie light-guides
    • 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
    • G02B6/0013—Means for improving the coupling-in of light from the light source into the light guide
    • G02B6/0023—Means for improving the coupling-in of light from the light source into the light guide provided by one optical element, or plurality thereof, placed between the light guide and the light source, or around the light source
    • G02B6/003—Lens or lenticular 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
    • G02B6/0038—Linear indentations or grooves, e.g. arc-shaped grooves or meandering grooves, extending over the full length or width of the light guide
    • 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
    • G02F1/133615—Edge-illuminating devices, i.e. illuminating from the side

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)
TW094133931A 2005-09-12 2005-09-29 Light-guide plate of backlight unit TWI277806B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020050084734A KR100736075B1 (ko) 2005-09-12 2005-09-12 백라이트 유닛의 도광판

Publications (2)

Publication Number Publication Date
TW200710504A TW200710504A (en) 2007-03-16
TWI277806B true TWI277806B (en) 2007-04-01

Family

ID=37940856

Family Applications (1)

Application Number Title Priority Date Filing Date
TW094133931A TWI277806B (en) 2005-09-12 2005-09-29 Light-guide plate of backlight unit

Country Status (3)

Country Link
JP (1) JP2007080800A (ko)
KR (1) KR100736075B1 (ko)
TW (1) TWI277806B (ko)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101475045B1 (ko) * 2008-10-07 2014-12-23 엘지이노텍 주식회사 발광엠블럼 어셈블리
KR101872348B1 (ko) 2011-06-22 2018-06-29 삼성디스플레이 주식회사 백라이트용 도광판 및 그 제조 방법
KR101891167B1 (ko) * 2011-08-11 2018-08-23 엘지디스플레이 주식회사 액정표시장치
TWI457621B (zh) * 2012-02-07 2014-10-21 Chi Lin Optoelectronics Co Ltd 顯示裝置、背光模組、網版、導光板及導光板之製造方法
CN106402678A (zh) * 2016-08-31 2017-02-15 深圳天珑无线科技有限公司 一种发光组件及智能终端
CN110208895A (zh) * 2019-05-08 2019-09-06 苏州晶智科技有限公司 一种用于背光模组的楔形板及其背光模组
CN111025765A (zh) * 2020-01-08 2020-04-17 深圳市隆利科技股份有限公司 直下式背光装置及显示设备

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100383033B1 (ko) 1999-11-13 2003-05-09 전자부품연구원 표시 장치용 백라이트 장치
JP2004233957A (ja) 2002-12-05 2004-08-19 Toyota Industries Corp 光学素子、面状照明装置及び液晶表示装置
JP2004249369A (ja) * 2003-02-18 2004-09-09 Towa Corp 加工品の切削加工方法及び加工品

Also Published As

Publication number Publication date
KR100736075B1 (ko) 2007-07-06
JP2007080800A (ja) 2007-03-29
TW200710504A (en) 2007-03-16
KR20070030011A (ko) 2007-03-15

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Legal Events

Date Code Title Description
MM4A Annulment or lapse of patent due to non-payment of fees