KR20040062176A - 액정표시장치 백라이트 어셈블리 - Google Patents
액정표시장치 백라이트 어셈블리 Download PDFInfo
- Publication number
- KR20040062176A KR20040062176A KR1020020088505A KR20020088505A KR20040062176A KR 20040062176 A KR20040062176 A KR 20040062176A KR 1020020088505 A KR1020020088505 A KR 1020020088505A KR 20020088505 A KR20020088505 A KR 20020088505A KR 20040062176 A KR20040062176 A KR 20040062176A
- Authority
- KR
- South Korea
- Prior art keywords
- light
- sheet
- light guide
- diffusion sheet
- guide plate
- Prior art date
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
- G02F1/1336—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
- G02B6/0051—Diffusing 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
- G02F1/133524—Light-guides, e.g. fibre-optic bundles, louvered or jalousie light-guides
-
- 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
- G02F1/133553—Reflecting elements
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2457/00—Electrical equipment
- B32B2457/20—Displays, e.g. liquid crystal displays, plasma displays
- B32B2457/202—LCD, i.e. liquid crystal displays
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 (3)
- 광원인 램프;상기 램프로부터 입사되는 광을 반사하여 평면광을 발생하는 도광판;상기 도광판 상부에 적층 배치되면서, 평면광을 확산하는 제 1 확산 시트;상기 제 1 확산 시트 상부에 적층 배치되면서, 확산된 광을 집광시키는 프리즘 시트;상기 프리즘 시트 상부에 적층 배치되면서, 상기 제 1 확산 시트의 헤이즈(haze) 값보다 작고 보호 시트보다는 큰 헤이즈 값을 갖는 제 2 확산 시트; 및상기 도광판 타측면에 배치되어 누설되는 광을 반사시키는 반사판;을 포함하는 것을 특징으로 하는 액정표시장치 백라이트 어셈블리.
- 제 1 항에 있어서,상기 제 2 확산 시트의 헤이즈 값은 65%~79%의 범위의 값을 갖는 것을 특징으로 하는 액정표시장치 백라이트 어셈블리.
- 제 1 항에 있어서,상기 도광판으로부터 발생하는 광은 상기 제 1 확산 시트, 프리즘 시트, 제 2 확산 시트에서 산란되는 것을 특징으로 하는 액정표시장치 백라이트 어셈블리.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020020088505A KR100891594B1 (ko) | 2002-12-31 | 2002-12-31 | 액정표시장치 백라이트 어셈블리 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020020088505A KR100891594B1 (ko) | 2002-12-31 | 2002-12-31 | 액정표시장치 백라이트 어셈블리 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20040062176A true KR20040062176A (ko) | 2004-07-07 |
KR100891594B1 KR100891594B1 (ko) | 2009-04-03 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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KR1020020088505A KR100891594B1 (ko) | 2002-12-31 | 2002-12-31 | 액정표시장치 백라이트 어셈블리 |
Country Status (1)
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KR (1) | KR100891594B1 (ko) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100830031B1 (ko) * | 2005-11-30 | 2008-05-15 | 가시오게산키 가부시키가이샤 | 표시 불균형을 개선한 액정표시장치 |
KR100869474B1 (ko) * | 2007-02-13 | 2008-11-21 | 주식회사 코오롱 | 프리즘 보호시트 |
KR101285620B1 (ko) * | 2005-06-28 | 2013-07-12 | 엘지디스플레이 주식회사 | 백라이트유니트 및 이를 구비한 액정표시장치 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0829786A (ja) * | 1994-05-11 | 1996-02-02 | Sharp Corp | 照明装置およびそれを用いた液晶表示装置 |
JPH08160203A (ja) * | 1994-12-07 | 1996-06-21 | Sekisui Chem Co Ltd | 液晶表示装置用の画質改善フィルム |
JP2001337207A (ja) * | 2000-03-21 | 2001-12-07 | Sumitomo Chem Co Ltd | 前方散乱シート、それを用いた積層シート及び液晶表示装置 |
KR100367845B1 (ko) * | 2000-06-07 | 2003-01-10 | 삼성전자 주식회사 | 액정표시장치의 조명 방법, 이를 구현시키기 위한액정표시장치의 백라이트 어셈블리 및 이를 채용한액정표시장치 |
-
2002
- 2002-12-31 KR KR1020020088505A patent/KR100891594B1/ko active IP Right Grant
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101285620B1 (ko) * | 2005-06-28 | 2013-07-12 | 엘지디스플레이 주식회사 | 백라이트유니트 및 이를 구비한 액정표시장치 |
KR100830031B1 (ko) * | 2005-11-30 | 2008-05-15 | 가시오게산키 가부시키가이샤 | 표시 불균형을 개선한 액정표시장치 |
KR100869474B1 (ko) * | 2007-02-13 | 2008-11-21 | 주식회사 코오롱 | 프리즘 보호시트 |
Also Published As
Publication number | Publication date |
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KR100891594B1 (ko) | 2009-04-03 |
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