KR19990006807A - 백라이트 - Google Patents

백라이트 Download PDF

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Publication number
KR19990006807A
KR19990006807A KR1019980021301A KR19980021301A KR19990006807A KR 19990006807 A KR19990006807 A KR 19990006807A KR 1019980021301 A KR1019980021301 A KR 1019980021301A KR 19980021301 A KR19980021301 A KR 19980021301A KR 19990006807 A KR19990006807 A KR 19990006807A
Authority
KR
South Korea
Prior art keywords
light
reflector
diffuser
light guide
exit port
Prior art date
Application number
KR1019980021301A
Other languages
English (en)
Korean (ko)
Inventor
쇼이찌 우에다
히데끼 미야우찌
Original Assignee
가네꼬 히사시
닛뽕덴끼 가부시끼가이샤
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 가네꼬 히사시, 닛뽕덴끼 가부시끼가이샤 filed Critical 가네꼬 히사시
Publication of KR19990006807A publication Critical patent/KR19990006807A/ko

Links

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
    • G02B6/0035—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
    • G02B6/0036—2-D arrangement of prisms, protrusions, indentations or roughened 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
    • G02B6/0031—Reflecting 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
    • G02B6/005—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
    • G02F1/133615—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)
  • Optical Elements Other Than Lenses (AREA)
  • Liquid Crystal (AREA)
KR1019980021301A 1997-06-18 1998-06-09 백라이트 KR19990006807A (ko)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP16090397 1997-06-18
JP97-160903 1997-06-18
JP9312195A JP3067717B2 (ja) 1997-06-18 1997-11-13 バックライト
JP97-312195 1997-11-13

Publications (1)

Publication Number Publication Date
KR19990006807A true KR19990006807A (ko) 1999-01-25

Family

ID=26487236

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1019980021301A KR19990006807A (ko) 1997-06-18 1998-06-09 백라이트

Country Status (3)

Country Link
JP (1) JP3067717B2 (ja)
KR (1) KR19990006807A (ja)
TW (1) TW461981B (ja)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20020047653A (ko) * 2000-12-13 2002-06-22 이승철 조명장치
US7203058B2 (en) 2003-10-09 2007-04-10 Samsung Electronics Co., Ltd. Portable computer

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4707260B2 (ja) * 2001-05-14 2011-06-22 東芝モバイルディスプレイ株式会社 照明ユニット及びその製造方法並びに照明ユニットを用いた液晶表示装置
KR100413486B1 (ko) * 2001-07-10 2003-12-31 엘지.필립스 엘시디 주식회사 액정표시장치(ｌｃｄ)의 백라이트 어셈블리
JP2009048152A (ja) * 2007-07-23 2009-03-05 Toppan Printing Co Ltd 光学シートおよび光学シートを用いたバックライトユニット、ディスプレイ装置
JP5478210B2 (ja) * 2009-11-18 2014-04-23 シチズンファインテックミヨタ株式会社 反射型液晶表示装置
JP2013171619A (ja) * 2012-02-17 2013-09-02 Sharp Corp 表示装置及びテレビ受信装置

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20020047653A (ko) * 2000-12-13 2002-06-22 이승철 조명장치
US7203058B2 (en) 2003-10-09 2007-04-10 Samsung Electronics Co., Ltd. Portable computer

Also Published As

Publication number Publication date
JPH1172624A (ja) 1999-03-16
JP3067717B2 (ja) 2000-07-24
TW461981B (en) 2001-11-01

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Legal Events

Date Code Title Description
A201 Request for examination
E902 Notification of reason for refusal
E601 Decision to refuse application