CN1266529C - 背光单元 - Google Patents
背光单元 Download PDFInfo
- Publication number
- CN1266529C CN1266529C CNB2003101141121A CN200310114112A CN1266529C CN 1266529 C CN1266529 C CN 1266529C CN B2003101141121 A CNB2003101141121 A CN B2003101141121A CN 200310114112 A CN200310114112 A CN 200310114112A CN 1266529 C CN1266529 C CN 1266529C
- Authority
- CN
- China
- Prior art keywords
- light
- optical plate
- prism
- back light
- light unit
- 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
Links
Images
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
- G02B6/0013—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
- 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
-
- 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
-
- 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
- G02B6/0028—Light guide, e.g. taper
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Planar Illumination Modules (AREA)
- Liquid Crystal (AREA)
- Light Guides In General And Applications Therefor (AREA)
Abstract
Description
Claims (18)
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR67969/2002 | 2002-11-04 | ||
KR10-2002-0067969A KR100499133B1 (ko) | 2002-11-04 | 2002-11-04 | 백라이트 유닛 |
KR67969/02 | 2002-11-04 |
Publications (2)
Publication Number | Publication Date |
---|---|
CN1499264A CN1499264A (zh) | 2004-05-26 |
CN1266529C true CN1266529C (zh) | 2006-07-26 |
Family
ID=32089790
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CNB2003101141121A Expired - Fee Related CN1266529C (zh) | 2002-11-04 | 2003-11-03 | 背光单元 |
Country Status (5)
Country | Link |
---|---|
US (1) | US7217025B2 (zh) |
EP (2) | EP2538131B1 (zh) |
JP (1) | JP4278486B2 (zh) |
KR (1) | KR100499133B1 (zh) |
CN (1) | CN1266529C (zh) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7905613B2 (en) | 2006-04-28 | 2011-03-15 | Hitachi Displays, Ltd. | LED backlight and liquid crystal display device using thereof |
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KR100649851B1 (ko) * | 1999-11-23 | 2006-11-24 | 엘지전자 주식회사 | 액정 표시 장치의 백라이트 시스템 |
ATE353447T1 (de) * | 1999-12-28 | 2007-02-15 | Fujitsu Kasei Kk | Beleuchtungsapparat für anzeige |
DE10021100A1 (de) * | 2000-05-02 | 2001-11-15 | Bosch Gmbh Robert | Beleuchtungsvorrichtung und Verfahren zur Beleuchtung |
JP4653326B2 (ja) * | 2001-03-05 | 2011-03-16 | オリンパス株式会社 | 照明装置 |
JP2002289023A (ja) * | 2001-03-27 | 2002-10-04 | Casio Comput Co Ltd | 照明装置 |
JP3931070B2 (ja) * | 2001-10-22 | 2007-06-13 | 株式会社アドバンスト・ディスプレイ | 面状光源装置及びこれを備えた液晶表示装置 |
JP3828402B2 (ja) * | 2001-11-08 | 2006-10-04 | 株式会社日立製作所 | 背面照明装置およびこれを用いた液晶表示装置並びに液晶表示装置の照明方法 |
KR100499140B1 (ko) * | 2003-01-07 | 2005-07-04 | 삼성전자주식회사 | 백라이트 유닛 |
-
2002
- 2002-11-04 KR KR10-2002-0067969A patent/KR100499133B1/ko active IP Right Grant
-
2003
- 2003-10-30 JP JP2003370448A patent/JP4278486B2/ja not_active Expired - Fee Related
- 2003-11-03 CN CNB2003101141121A patent/CN1266529C/zh not_active Expired - Fee Related
- 2003-11-04 US US10/700,050 patent/US7217025B2/en not_active Expired - Lifetime
- 2003-11-04 EP EP12184997.0A patent/EP2538131B1/en not_active Expired - Lifetime
- 2003-11-04 EP EP03025378.5A patent/EP1416302B1/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7905613B2 (en) | 2006-04-28 | 2011-03-15 | Hitachi Displays, Ltd. | LED backlight and liquid crystal display device using thereof |
Also Published As
Publication number | Publication date |
---|---|
JP4278486B2 (ja) | 2009-06-17 |
US7217025B2 (en) | 2007-05-15 |
KR100499133B1 (ko) | 2005-07-04 |
JP2004158452A (ja) | 2004-06-03 |
EP1416302A2 (en) | 2004-05-06 |
EP1416302A3 (en) | 2010-12-01 |
EP1416302B1 (en) | 2014-05-14 |
US20040170011A1 (en) | 2004-09-02 |
EP2538131B1 (en) | 2017-02-08 |
KR20040039785A (ko) | 2004-05-12 |
CN1499264A (zh) | 2004-05-26 |
EP2538131A1 (en) | 2012-12-26 |
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