KR100671649B1 - 면광원 장치, 확산판 및 액정표시 장치 - Google Patents
면광원 장치, 확산판 및 액정표시 장치 Download PDFInfo
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- KR100671649B1 KR100671649B1 KR1020050098050A KR20050098050A KR100671649B1 KR 100671649 B1 KR100671649 B1 KR 100671649B1 KR 1020050098050 A KR1020050098050 A KR 1020050098050A KR 20050098050 A KR20050098050 A KR 20050098050A KR 100671649 B1 KR100671649 B1 KR 100671649B1
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- KR
- South Korea
- Prior art keywords
- light
- guide plate
- light source
- light guide
- prism sheet
- Prior art date
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Classifications
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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
- G02B6/0033—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
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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
-
- 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
-
- 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
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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
- G02B6/0033—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
- 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
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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
- G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
- G02F1/133607—Direct backlight including a specially adapted diffusing, scattering or light controlling members the light controlling member including light directing or refracting elements, e.g. prisms or lenses
-
- 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
Abstract
Description
Claims (6)
- 광원과, 해당 광원으로부터 도입된 광을 면 형상으로 넓혀 광출사면으로부터 출사시키는 도광판과, 해당 도광판의 광출사면에 대향시켜 배치된 확산판으로 이루어지는 면광원 장치에 있어서,상기 도광판은 도광판 내부의 광을 상기 광출사면에 수직으로 또한 상기 점광원을 포함하는 평면내에서만 편향시켜 상기 광출사면에 따르도록하여 상기 점광원과 반대측으로 향해 상기 광출사면으로부터 광을 출사시키는 수단을 가지며,상기 광출사수단은, 광편향면을 구비한 요철 패턴이고, 상기 광출사면에 수직한 평면 내에 있어서의 상기 광편향면의 경사각도가 도광판 내부에서 거의 일정하며,상기 확산판의 수직 입사에 대한 투과광의 지향성이, 해당 확산판에 수직한 방향을 끼우고 양측으로 20°이내의 범위에 각각 적어도 하나씩 극대치를 갖는 것을 특징으로 하는 면광원 장치.
- 제 1항에 있어서,상기 확산판은, 원추에 가까운 형상을 한 요철을 복수 배열한 것을 특징으로 하는 면광원 장치.
- 삭제
- 삭제
- 삭제
- 제 1항 또는 제 2항에 기재된 면광원 장치와, 액정표시 패널을 구비한 것을 특징으로 하는 액정표시 장치.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2002014508A JP4035998B2 (ja) | 2002-01-23 | 2002-01-23 | 面光源装置、拡散板及び液晶表示装置 |
JPJP-P-2002-00014508 | 2002-01-23 |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020030000548A Division KR100671688B1 (ko) | 2002-01-23 | 2003-01-06 | 면광원 장치, 확산판 및 액정표시 장치 |
Related Child Applications (1)
Application Number | Title | Priority Date | Filing Date |
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KR1020060089376A Division KR100678850B1 (ko) | 2002-01-23 | 2006-09-15 | 면광원 장치, 확산판 및 액정표시 장치 |
Publications (2)
Publication Number | Publication Date |
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KR20050105962A KR20050105962A (ko) | 2005-11-08 |
KR100671649B1 true KR100671649B1 (ko) | 2007-01-19 |
Family
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Family Applications (3)
Application Number | Title | Priority Date | Filing Date |
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KR1020030000548A KR100671688B1 (ko) | 2002-01-23 | 2003-01-06 | 면광원 장치, 확산판 및 액정표시 장치 |
KR1020050098050A KR100671649B1 (ko) | 2002-01-23 | 2005-10-18 | 면광원 장치, 확산판 및 액정표시 장치 |
KR1020060089376A KR100678850B1 (ko) | 2002-01-23 | 2006-09-15 | 면광원 장치, 확산판 및 액정표시 장치 |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
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KR1020030000548A KR100671688B1 (ko) | 2002-01-23 | 2003-01-06 | 면광원 장치, 확산판 및 액정표시 장치 |
Family Applications After (1)
Application Number | Title | Priority Date | Filing Date |
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KR1020060089376A KR100678850B1 (ko) | 2002-01-23 | 2006-09-15 | 면광원 장치, 확산판 및 액정표시 장치 |
Country Status (6)
Country | Link |
---|---|
US (1) | US7121709B2 (ko) |
EP (2) | EP1947491A3 (ko) |
JP (1) | JP4035998B2 (ko) |
KR (3) | KR100671688B1 (ko) |
CN (1) | CN1226640C (ko) |
TW (1) | TWI226956B (ko) |
Cited By (2)
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US11276795B2 (en) | 2010-07-13 | 2022-03-15 | S.V.V. Technology Innovations, Inc. | Light converting systems employing thin light absorbing and light trapping structures with lens arrays |
USRE49630E1 (en) | 2011-10-08 | 2023-08-29 | S.V.V. Technology Innovations, Inc. | Collimating illumination systems employing a waveguide |
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US11276795B2 (en) | 2010-07-13 | 2022-03-15 | S.V.V. Technology Innovations, Inc. | Light converting systems employing thin light absorbing and light trapping structures with lens arrays |
US11616157B2 (en) | 2010-07-13 | 2023-03-28 | S.V.V. Technology Innovations, Inc. | Method of making light converting systems using thin light absorbing and light trapping structures |
US11923475B2 (en) | 2010-07-13 | 2024-03-05 | S.V.V. Technology Innovations, Inc. | Method of making light converting systems using thin light trapping structures and photoabsorptive films |
USRE49630E1 (en) | 2011-10-08 | 2023-08-29 | S.V.V. Technology Innovations, Inc. | Collimating illumination systems employing a waveguide |
Also Published As
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EP1331495A2 (en) | 2003-07-30 |
CN1434336A (zh) | 2003-08-06 |
JP4035998B2 (ja) | 2008-01-23 |
EP1331495A3 (en) | 2003-08-13 |
US20030137824A1 (en) | 2003-07-24 |
TWI226956B (en) | 2005-01-21 |
KR100678850B1 (ko) | 2007-02-06 |
JP2003215584A (ja) | 2003-07-30 |
KR20030064278A (ko) | 2003-07-31 |
CN1226640C (zh) | 2005-11-09 |
EP1331495B1 (en) | 2011-06-08 |
TW200302377A (en) | 2003-08-01 |
EP1947491A2 (en) | 2008-07-23 |
US7121709B2 (en) | 2006-10-17 |
KR20050105962A (ko) | 2005-11-08 |
KR20060107457A (ko) | 2006-10-13 |
EP1947491A3 (en) | 2008-11-05 |
KR100671688B1 (ko) | 2007-01-18 |
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