KR100433218B1 - 백라이트 유닛 - Google Patents
백라이트 유닛 Download PDFInfo
- Publication number
- KR100433218B1 KR100433218B1 KR10-2001-0077590A KR20010077590A KR100433218B1 KR 100433218 B1 KR100433218 B1 KR 100433218B1 KR 20010077590 A KR20010077590 A KR 20010077590A KR 100433218 B1 KR100433218 B1 KR 100433218B1
- Authority
- KR
- South Korea
- Prior art keywords
- light
- light source
- green
- source
- luminance
- Prior art date
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Classifications
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- 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
- G02F1/133603—Direct backlight with LEDs
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- 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
- G02B6/0025—Diffusing sheet or layer; Prismatic 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
- G02B6/0058—Means for improving the coupling-out of light from the light guide varying in density, size, shape or depth along the light guide
- G02B6/0061—Means for improving the coupling-out of light from the light guide varying in density, size, shape or depth along the light guide to provide homogeneous light output intensity
-
- 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
- G02F1/133605—Direct backlight including specially adapted 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
- G02F2201/00—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00
- G02F2201/52—RGB geometrical arrangements
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)
Abstract
Description
Claims (6)
- 삭제
- 적색 광을 발생하는 하나의 적색 발광다이오드, 청색 광을 발생하는 하나의 녹색 발광다이오드 및 각각 녹색 광을 발생하는 두 개의 녹색 발광다이오드가 마름모꼴로 배치되어 액정패널에 광을 조사하는 광원과,상기 광원의 아래에 설치되어 광원으로부터의 광을 상측으로 반사시킴과 아울러 엠보싱처리된 반사판과,상기 광원의 상부에 설치되며 광을 확산시키는 확산시트를 구비하는 것을 특징으로 하는 백라이트 유닛.
- 제 2 항에 있어서,상기 녹색 발광다이오드가 서로 마주보도록 배치되는 것을 특징으로 하는 백라이트 유닛.
- 제 2 항에 있어서,상기 광원의 휘도는 다음의 조건식을 만족하는 것을 특징으로 하는 백라이트 유닛.(조건식)Y = 0.30R + 0.59G + 0.11B여기서, Y는 휘도, R은 적색광, G는 녹색광, B는 청색광, 각각의 숫자는 광의 밝기 정도를 의미한다.
- 제 2 항에 있어서,상기 광원과 연결되어 상기 광원을 구동시키는 백라이트 구동모듈을 추가로 구비하는 것을 특징으로 하는 백라이트 유닛.
- 제 5 항에 있어서,상기 백라이트 구동모듈은,구동 전압을 공급하는 구동전압원과,상기 구동전압원과 서로 다른 입력라인을 통해 접속되는 제1 및 제2 저항과,상기 제1 및 제2 저항의 출력라인 중 어느 하나를 선택하여 상기 광원과 접속시키는 스위치를 구비하는 것을 특징으로 하는 백라이트 유닛.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-2001-0077590A KR100433218B1 (ko) | 2001-12-08 | 2001-12-08 | 백라이트 유닛 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-2001-0077590A KR100433218B1 (ko) | 2001-12-08 | 2001-12-08 | 백라이트 유닛 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20030047173A KR20030047173A (ko) | 2003-06-18 |
KR100433218B1 true KR100433218B1 (ko) | 2004-05-27 |
Family
ID=29573811
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR10-2001-0077590A KR100433218B1 (ko) | 2001-12-08 | 2001-12-08 | 백라이트 유닛 |
Country Status (1)
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KR (1) | KR100433218B1 (ko) |
Families Citing this family (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7320531B2 (en) * | 2003-03-28 | 2008-01-22 | Philips Lumileds Lighting Company, Llc | Multi-colored LED array with improved brightness profile and color uniformity |
KR100586970B1 (ko) * | 2004-05-28 | 2006-06-08 | 삼성전기주식회사 | 액정 디스플레이 표시장치의 백라이트 유닛 |
KR101189085B1 (ko) * | 2005-07-14 | 2012-11-09 | 삼성디스플레이 주식회사 | 백라이트 유닛과 이를 포함하는 액정표시장치 |
KR100716741B1 (ko) * | 2005-08-04 | 2007-05-14 | 주식회사 나모텍 | 액정 디스플레이 장치용 반사판 및 이를 이용한 백라이트유닛 |
KR100820538B1 (ko) * | 2006-02-27 | 2008-04-07 | 엘지이노텍 주식회사 | 발광장치 및 이를 구비하는 영상표시장치 |
KR100771849B1 (ko) * | 2006-05-15 | 2007-10-31 | 주식회사 엘 앤 에프 | 백라이트 유닛 |
JP5050498B2 (ja) * | 2006-11-21 | 2012-10-17 | ソニー株式会社 | 光源装置、バックライト装置、液晶表示装置及びバックライト装置の製造方法 |
CN110609417B (zh) * | 2019-09-23 | 2022-07-08 | 京东方科技集团股份有限公司 | 灯板及其制造方法、背光源及显示装置 |
Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0832120A (ja) * | 1994-07-19 | 1996-02-02 | Rohm Co Ltd | 面発光表示器 |
JPH08211361A (ja) * | 1995-02-06 | 1996-08-20 | Casio Electron Mfg Co Ltd | 透過型表示装置 |
KR970014819U (ko) * | 1995-09-29 | 1997-04-28 | 액정표시기용 백라이트 휘도증진구조 | |
KR970025086U (ko) * | 1995-11-10 | 1997-06-20 | 액정 디스플레이용 백라이트 | |
KR970028718A (ko) * | 1995-11-30 | 1997-06-24 | 엄길용 | 발광다이오드 판넬 |
JPH09197373A (ja) * | 1996-01-19 | 1997-07-31 | Nichia Chem Ind Ltd | 表示装置及びその駆動方法 |
JPH1039300A (ja) * | 1996-07-24 | 1998-02-13 | Shichizun Denshi:Kk | カラー表示装置 |
KR20000051328A (ko) * | 1999-01-20 | 2000-08-16 | 구본준 | 박막트랜지스터형 광센서의 백라이트 어셈블리 |
-
2001
- 2001-12-08 KR KR10-2001-0077590A patent/KR100433218B1/ko active IP Right Grant
Patent Citations (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0832120A (ja) * | 1994-07-19 | 1996-02-02 | Rohm Co Ltd | 面発光表示器 |
JPH08211361A (ja) * | 1995-02-06 | 1996-08-20 | Casio Electron Mfg Co Ltd | 透過型表示装置 |
KR970014819U (ko) * | 1995-09-29 | 1997-04-28 | 액정표시기용 백라이트 휘도증진구조 | |
KR970025086U (ko) * | 1995-11-10 | 1997-06-20 | 액정 디스플레이용 백라이트 | |
KR970028718A (ko) * | 1995-11-30 | 1997-06-24 | 엄길용 | 발광다이오드 판넬 |
JPH09197373A (ja) * | 1996-01-19 | 1997-07-31 | Nichia Chem Ind Ltd | 表示装置及びその駆動方法 |
JPH1039300A (ja) * | 1996-07-24 | 1998-02-13 | Shichizun Denshi:Kk | カラー表示装置 |
KR20000051328A (ko) * | 1999-01-20 | 2000-08-16 | 구본준 | 박막트랜지스터형 광센서의 백라이트 어셈블리 |
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Publication number | Publication date |
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KR20030047173A (ko) | 2003-06-18 |
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