KR100567249B1 - 액정표시 백라이트용 도광판과 이 도광판이 채택된 차량용오디오의 액정표시모듈 - Google Patents
액정표시 백라이트용 도광판과 이 도광판이 채택된 차량용오디오의 액정표시모듈 Download PDFInfo
- Publication number
- KR100567249B1 KR100567249B1 KR1020030062333A KR20030062333A KR100567249B1 KR 100567249 B1 KR100567249 B1 KR 100567249B1 KR 1020030062333 A KR1020030062333 A KR 1020030062333A KR 20030062333 A KR20030062333 A KR 20030062333A KR 100567249 B1 KR100567249 B1 KR 100567249B1
- Authority
- KR
- South Korea
- Prior art keywords
- guide plate
- light guide
- liquid crystal
- crystal display
- plate
- Prior art date
Links
- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 28
- 230000007423 decrease Effects 0.000 claims description 5
- 238000001746 injection moulding Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 2
- 239000004926 polymethyl methacrylate Substances 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000012780 transparent material Substances 0.000 description 1
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
-
- 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
- G02F1/133615—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
- G02B6/0035—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
- G02B6/0035—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
- 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
- G02B6/0081—Mechanical or electrical aspects of the light guide and light source in the lighting device peculiar to the adaptation to planar light guides, e.g. concerning packaging
- G02B6/0086—Positioning aspects
- G02B6/0088—Positioning aspects of the light guide or other optical sheets in the package
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)
- Liquid Crystal (AREA)
- Planar Illumination Modules (AREA)
Abstract
Description
Claims (4)
- 일측에 광원이 배치되는 판상체와,상기 판상체의 배면에 형성되는 패턴부를 포함하여 이루어지되,상기 광원이 인접한 상기 판상체의 배면에는 상기 패턴부가 형성되지 않은 평탄면이 있고,상기 평탄면은 이젝트 핀이 배치되는 자리면에 의해 형성되고,상기 평탄면은 상기 광원을 중심으로 지름을 갖는 형상인 것을 특징으로 하는 액정표시 백라이트용 도광판.
- 제 1항에 있어서, 상기 판상체는 상기 광원이 배치된 입사측면에서 대향측면으로 갈수록 그 두께가 점진적으로 작아지는 형상인 것을 특징으로 하는 액정표시 백라이트용 도광판.
- 광원;일측에 상기 광원이 배치되는 판상체와, 상기 판상체의 배면에 형성되는 패턴부를 갖는 도광판;상기 도광판의 전면측에 배치되는 액정표시(LCD) 패널부;상기 광원, 상기 도광판, 상기 LCD 패널부를 수용하는 하우징을 포함하여 이루어지되,상기 광원이 인접한 상기 판상체의 배면에는 상기 패턴부가 형성되지 않은 평탄면이 있고,상기 평탄면은 이젝트 핀이 배치되는 자리면에 의해 형성되고,상기 평탄면은 상기 광원을 중심으로 지름을 갖는 형상인 것을 특징으로 하는 차량용 오디오의 액정표시모듈.
- 제 3항에 있어서, 상기 도광판은 상기 광원이 배치된 입사측면에서 대향측면으로 갈수록 그 두께가 점진적으로 작아지는 형상인 것을 특징으로 하는 차량용 오디오의 액정표시모듈.
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020030062333A KR100567249B1 (ko) | 2003-09-06 | 2003-09-06 | 액정표시 백라이트용 도광판과 이 도광판이 채택된 차량용오디오의 액정표시모듈 |
US10/704,575 US7057679B2 (en) | 2003-09-06 | 2003-11-12 | Light guide plate for liquid crystal display module of car audio in use with the light guide plate |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020030062333A KR100567249B1 (ko) | 2003-09-06 | 2003-09-06 | 액정표시 백라이트용 도광판과 이 도광판이 채택된 차량용오디오의 액정표시모듈 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20050026723A KR20050026723A (ko) | 2005-03-16 |
KR100567249B1 true KR100567249B1 (ko) | 2006-04-03 |
Family
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Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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KR1020030062333A KR100567249B1 (ko) | 2003-09-06 | 2003-09-06 | 액정표시 백라이트용 도광판과 이 도광판이 채택된 차량용오디오의 액정표시모듈 |
Country Status (2)
Country | Link |
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US (1) | US7057679B2 (ko) |
KR (1) | KR100567249B1 (ko) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102010051826A1 (de) * | 2010-11-18 | 2012-05-24 | Valeo Schalter Und Sensoren Gmbh | Lichtleiter, insbesondere zum Beleuchten eines Schachtes für einen Datenträger, und Abspielgerät mit einem derartigen Lichtleiter |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
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JPH0829624A (ja) * | 1994-07-13 | 1996-02-02 | Taiho Ind Co Ltd | 面光源装置 |
KR20010035196A (ko) * | 2001-01-12 | 2001-05-07 | 최인식 | 이종 패턴으로 구성된 무인쇄 도광판 및 그것을 이용한백라이트 |
KR20010062925A (ko) * | 1999-12-21 | 2001-07-09 | 박종섭 | 액정표시소자의 백 라이트 유니트 |
WO2003010466A1 (fr) * | 2001-07-27 | 2003-02-06 | Enplas Corporation | Dispositif a lumiere de surface, dispositif d'affichage d'image, et plaque de guidage optique |
Family Cites Families (16)
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US3752974A (en) * | 1971-12-13 | 1973-08-14 | Coastal Dynamics Corp | Uniform illumination with edge lighting |
JP2749012B2 (ja) * | 1987-08-28 | 1998-05-13 | 株式会社日立製作所 | 液晶表示装置 |
US5283673A (en) * | 1989-09-30 | 1994-02-01 | Kabushiki Kaisha Meitaku Shisutemu | Surface luminous source panel with areas having different reflector speck densities |
US4975808A (en) * | 1989-10-02 | 1990-12-04 | Motorola, Inc. | Backlighting apparatus |
US5093765A (en) * | 1990-02-16 | 1992-03-03 | Tosoh Corporation | Back lighting device for a panel |
JPH05264995A (ja) | 1992-04-20 | 1993-10-15 | Toshiba Corp | パネル用バックライト |
JPH07113718B2 (ja) * | 1993-03-03 | 1995-12-06 | 日本電気株式会社 | 液晶パネル用バックライト装置 |
JP2830972B2 (ja) * | 1995-03-06 | 1998-12-02 | 株式会社日立製作所 | 液晶表示装置 |
US6712481B2 (en) * | 1995-06-27 | 2004-03-30 | Solid State Opto Limited | Light emitting panel assemblies |
US5613751A (en) * | 1995-06-27 | 1997-03-25 | Lumitex, Inc. | Light emitting panel assemblies |
JP3654410B2 (ja) | 1997-08-11 | 2005-06-02 | 株式会社エンプラス | サイドライト型面光源装置、液晶表示装置及び導光板 |
JP2986773B2 (ja) * | 1998-04-01 | 1999-12-06 | 嶋田プレシジョン株式会社 | 点光源用の導光板 |
EP1698918A1 (en) | 1998-11-27 | 2006-09-06 | Sharp Kabushiki Kaisha | Illuminator, illuminating device, front light and liquid crystal display |
TW592308U (en) * | 1999-02-17 | 2004-06-11 | Enplas Corp | Light guiding plate, surface light source device, and liquid crystal display device |
US6733147B2 (en) * | 2000-09-07 | 2004-05-11 | San Zhuang Wang | Backlighting system for displays |
KR100806121B1 (ko) | 2001-09-29 | 2008-02-22 | 삼성전자주식회사 | 도광판, 이를 이용한 액정표시장치 |
-
2003
- 2003-09-06 KR KR1020030062333A patent/KR100567249B1/ko not_active IP Right Cessation
- 2003-11-12 US US10/704,575 patent/US7057679B2/en not_active Expired - Fee Related
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0829624A (ja) * | 1994-07-13 | 1996-02-02 | Taiho Ind Co Ltd | 面光源装置 |
KR20010062925A (ko) * | 1999-12-21 | 2001-07-09 | 박종섭 | 액정표시소자의 백 라이트 유니트 |
KR20010035196A (ko) * | 2001-01-12 | 2001-05-07 | 최인식 | 이종 패턴으로 구성된 무인쇄 도광판 및 그것을 이용한백라이트 |
WO2003010466A1 (fr) * | 2001-07-27 | 2003-02-06 | Enplas Corporation | Dispositif a lumiere de surface, dispositif d'affichage d'image, et plaque de guidage optique |
Also Published As
Publication number | Publication date |
---|---|
US7057679B2 (en) | 2006-06-06 |
KR20050026723A (ko) | 2005-03-16 |
US20050052589A1 (en) | 2005-03-10 |
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