KR20120133558A - 백라이트 유닛 - Google Patents
백라이트 유닛 Download PDFInfo
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- KR20120133558A KR20120133558A KR1020110052266A KR20110052266A KR20120133558A KR 20120133558 A KR20120133558 A KR 20120133558A KR 1020110052266 A KR1020110052266 A KR 1020110052266A KR 20110052266 A KR20110052266 A KR 20110052266A KR 20120133558 A KR20120133558 A KR 20120133558A
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- KR
- South Korea
- Prior art keywords
- guide plate
- light
- light emitting
- emitting device
- light guide
- Prior art date
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Images
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
- G02B6/002—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 by shaping at least a portion of the light guide, e.g. with collimating, focussing or diverging 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
- G02B6/0035—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
- G02B6/0045—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 by shaping at least a portion of the light guide
- G02B6/0046—Tapered light guide, e.g. wedge-shaped 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
-
- 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
-
- 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
- G02B6/0066—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 characterised by the light source being coupled to the light guide
- G02B6/0068—Arrangements of plural sources, e.g. multi-colour light sources
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)
Abstract
Description
도 1b 는 실시예에 따른 백라이트 유닛을 나타낸 일부 분해 사시도,
도 2a 는 실시예에 따른 백라이트 유닛의 일부를 나타낸 단면도,
도 2b 는 실시예에 따른 백라이트 유닛의 일부를 나타낸 단면도,
도 2c 는 실시예에 따른 백라이트 유닛의 일부를 나타낸 단면도,
도 2d 는 실시예에 따른 백라이트 유닛의 일부를 나타낸 단면도,
도 3 은 실시예에 따른 백라이트 유닛을 포함한 액정표시장치를 나타낸 분해 사시도, 그리고,
도 4 는 실시예에 따른 백라이트 유닛을 포함한 전자 기기를 나타낸 개념도이다.
120 : 도광판 130 : 제1 영역
140 : 제2 영역 150 : 반사시트
160 : 광학시트 170 : 단차면
Claims (12)
- 발광소자 패키지;
상기 발광소자 패키지와 인접하는 측면에 함몰된 홈을 포함하는 제1 영역, 및 상기 제1 영역과 상면에 단차를 형성하는 제2 영역을 포함하는 도광판; 및
상기 제2 영역의 상면에 구비되는 광학시트;를 포함하는 백라이트 유닛. - 제1항에 있어서,
상기 홈은 상기 도광판의 하면과 측면이 함께 함몰되어 형성되는 백라이트 유닛. - 제1항에 있어서,
상기 도광판의 상면은 상기 제1 영역이 돌출된 백라이트 유닛. - 제1항에 있어서,
상기 제1 영역과 상기 제2 영역의 단차는 0.5 내지 1.0mm인 백라이트 유닛. - 제1항에 있어서,
상기 홈의 일측면은 상기 도광판의 상면과 평행하게 형성되고, 그 위에 반사판이 구비되는 백라이트 유닛. - 제1항에 있어서,
상기 홈의 윤곽은 곡률을 갖는 백라이트 유닛. - 제1항에 있어서,
상기 홈에 상기 발광소자 패키지가 배치되는 백라이트 유닛. - 제2항에 있어서,
상기 홈의 상기 도광판의 하면으로부터 함몰된 깊이는 상기 도광판의 측면으로부터 함몰된 깊이의 1 내지 5배인 백라이트 유닛. - 제1항에 있어서,
상기 발광소자 패키지와 인접하는 상기 도광판의 측면의 수직방향으로의 상기 제2 영역의 길이는 상기 제1 영역의 길이의 20 내지 80배인 백라이트 유닛. - 제1항에 있어서,
상기 제1 영역의 상면에 패턴이 구비된 백라이트 유닛. - 제1항에 있어서,
상기 제2 영역의 하면에 배치되는 반사시트를 더 포함하는 백라이트 유닛. - 제1항에 대하여,
상기 제2 영역의 하면은 경사각을 갖는 백라이트 유닛.
Priority Applications (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020110052266A KR20120133558A (ko) | 2011-05-31 | 2011-05-31 | 백라이트 유닛 |
| US13/473,701 US8882322B2 (en) | 2011-05-31 | 2012-05-17 | Backlight unit |
| EP12168733.9A EP2530375B1 (en) | 2011-05-31 | 2012-05-21 | Light guide design for edge-illumination in a backlight unit |
| CN201210176073.7A CN102809090B (zh) | 2011-05-31 | 2012-05-31 | 背光单元 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1020110052266A KR20120133558A (ko) | 2011-05-31 | 2011-05-31 | 백라이트 유닛 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| KR20120133558A true KR20120133558A (ko) | 2012-12-11 |
Family
ID=46147326
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1020110052266A Ceased KR20120133558A (ko) | 2011-05-31 | 2011-05-31 | 백라이트 유닛 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US8882322B2 (ko) |
| EP (1) | EP2530375B1 (ko) |
| KR (1) | KR20120133558A (ko) |
| CN (1) | CN102809090B (ko) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR102164531B1 (ko) * | 2014-02-05 | 2020-10-12 | 엘지이노텍 주식회사 | 조명 장치 |
| US9423665B2 (en) | 2014-03-24 | 2016-08-23 | Industrial Technology Research Institute | Ambient light adjustment apparatus, method and system |
| KR102181945B1 (ko) * | 2014-05-14 | 2020-11-23 | 엘지이노텍 주식회사 | 광원 모듈 및 이를 구비하는 조명 장치 |
| KR102244427B1 (ko) | 2014-06-02 | 2021-04-27 | 엘지이노텍 주식회사 | 조명 장치 |
| CN105448195A (zh) * | 2015-12-16 | 2016-03-30 | 小米科技有限责任公司 | 一种显示装置及电子设备 |
| CN110568942B (zh) * | 2019-05-02 | 2023-05-26 | 义隆电子股份有限公司 | 发光触摸板 |
| CN113238316A (zh) * | 2021-05-20 | 2021-08-10 | 北京京东方光电科技有限公司 | 导光板、背光模组及其制备方法、显示面板 |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03107821A (ja) | 1989-09-21 | 1991-05-08 | Nippon Steel Corp | 液晶ディスプレイ装置 |
| CN1145832C (zh) * | 1995-03-31 | 2004-04-14 | 精工爱普生株式会社 | 液晶显示装置 |
| CN1504767A (zh) * | 2002-11-29 | 2004-06-16 | 鸿富锦精密工业(深圳)有限公司 | 导光板及采用该导光板的光源系统 |
| CN2731497Y (zh) * | 2004-08-05 | 2005-10-05 | 西安海晶光电科技有限公司 | 超薄液晶模块背光源 |
| CN2763842Y (zh) * | 2004-12-17 | 2006-03-08 | 群康科技(深圳)有限公司 | 背光模组 |
| US7780330B2 (en) | 2007-05-16 | 2010-08-24 | Rohm And Haas Electronics Materials Llc | Elongated illuminators configuration for LCD displays |
| JP2009199866A (ja) * | 2008-02-21 | 2009-09-03 | Hitachi Displays Ltd | 液晶表示装置 |
| US8228464B2 (en) | 2009-01-19 | 2012-07-24 | Hitachi Displays, Ltd. | Liquid crystal display device |
| CN201401733Y (zh) * | 2009-04-23 | 2010-02-10 | 华映光电股份有限公司 | 导光板及其背光模组 |
-
2011
- 2011-05-31 KR KR1020110052266A patent/KR20120133558A/ko not_active Ceased
-
2012
- 2012-05-17 US US13/473,701 patent/US8882322B2/en active Active
- 2012-05-21 EP EP12168733.9A patent/EP2530375B1/en not_active Not-in-force
- 2012-05-31 CN CN201210176073.7A patent/CN102809090B/zh active Active
Also Published As
| Publication number | Publication date |
|---|---|
| EP2530375A1 (en) | 2012-12-05 |
| US20120307522A1 (en) | 2012-12-06 |
| US8882322B2 (en) | 2014-11-11 |
| CN102809090A (zh) | 2012-12-05 |
| CN102809090B (zh) | 2017-11-24 |
| EP2530375B1 (en) | 2018-04-11 |
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