KR20030011620A - 면발광장치 및 액정표시장치 - Google Patents
면발광장치 및 액정표시장치 Download PDFInfo
- Publication number
- KR20030011620A KR20030011620A KR1020020043489A KR20020043489A KR20030011620A KR 20030011620 A KR20030011620 A KR 20030011620A KR 1020020043489 A KR1020020043489 A KR 1020020043489A KR 20020043489 A KR20020043489 A KR 20020043489A KR 20030011620 A KR20030011620 A KR 20030011620A
- Authority
- KR
- South Korea
- Prior art keywords
- light
- liquid crystal
- crystal display
- guide plate
- light guide
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 145
- 238000009751 slip forming Methods 0.000 claims abstract description 3
- 239000000758 substrate Substances 0.000 claims description 18
- 238000000034 method Methods 0.000 claims description 7
- 238000001579 optical reflectometry Methods 0.000 claims description 2
- 238000009826 distribution Methods 0.000 abstract description 7
- 239000011347 resin Substances 0.000 description 9
- 229920005989 resin Polymers 0.000 description 9
- 239000004925 Acrylic resin Substances 0.000 description 7
- 229920000178 Acrylic resin Polymers 0.000 description 7
- 238000010586 diagram Methods 0.000 description 4
- 229910052782 aluminium Inorganic materials 0.000 description 3
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 230000001902 propagating effect Effects 0.000 description 3
- 229910052709 silver Inorganic materials 0.000 description 3
- 239000004332 silver Substances 0.000 description 3
- 238000004544 sputter deposition Methods 0.000 description 3
- 230000000007 visual effect Effects 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 2
- 238000002788 crimping Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 238000005286 illumination Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 230000002093 peripheral effect Effects 0.000 description 2
- 229920005668 polycarbonate resin Polymers 0.000 description 2
- 239000004431 polycarbonate resin Substances 0.000 description 2
- 239000003566 sealing material Substances 0.000 description 2
- 238000001771 vacuum deposition Methods 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000001413 cellular effect Effects 0.000 description 1
- 229910003460 diamond Inorganic materials 0.000 description 1
- 239000010432 diamond Substances 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 238000005304 joining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 229920002050 silicone resin Polymers 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
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
- G02B6/0035—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
-
- 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
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)
- Liquid Crystal (AREA)
- Planar Illumination Modules (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Light Guides In General And Applications Therefor (AREA)
Abstract
Description
Claims (9)
- 광원과, 상기 광원으로부터의 빛을 측단면에 형성된 입광면에서 내부로 도입하고, 상기 빛을 출사면에서 출사시키는 도광판을 구비하고,상기 도광판의 출사면에서의 출사광량이 최대가 되는 방향이, 상기 도광판의 출사면의 법선에 대해 1°이상 10°이하의 각도를 이루는 방향인 것을 특징으로 하는 면발광장치.
- 제 1 항에 있어서,상기 도광판의 출사면에서의 출사광량이 최대가 되는 방향이, 상기 도광판의 출사면의 법선에 대하여 3°이상 8°이하의 각도를 이루는 방향인 것을 특징으로 하는 면발광장치.
- 광원과, 상기 광원으로부터의 빛을 측단면에 형성된 입광면에서 내부로 도입하고, 상기 빛을 출사면에서 출사시키는 도광판을 구비하고,상기 도광판의 출사면과 반대측에 위치하는 반사면에, 완사면부와 상기 완사면부보다 급한 경사각도를 갖는 급사면부로 구성되는 복수의 홈이 스트라이프형상으로 연속해서 형성되어 있고,상기 도광판의 완사면부의 경사각도가 1.8°이상 2.5°이하이고, 상기 도광판의 홈의 피치가 140㎛ 이상 240㎛ 이하이고, 상기 급사면부의 경사각도가 43°이상 47°이하인 것을 특징으로 하는 면발광장치.
- 제 1 항에 기재된 면발광장치를 구비한 것을 특징으로 하는 액정표시장치.
- 제 4 항에 있어서,한쌍의 기판과, 상기 기판사이에 액정층을 끼워 이루어지는 액정표시유닛과, 상기 액정표시유닛의 전면에 설치된 면발광장치를 구비하고,상기 액정표시유닛이 상기 기판의 외면측에서 입사된 빛을 반사시키기 위한 반사체를 구비하고 있고,상기 면발광장치를 점등시킨 상태에서, 상기 반사체에 의해 반사된 반사광의 광량이 최대가 되는 방향이, 상기 액정표시유닛의 법선에 대해 1°이상 10°이하의 각도를 이루는 방향인 것을 특징으로 하는 액정표시장치.
- 제 5 항에 있어서,상기 면발광장치를 점등시킨 상태에서, 상기 반사체에 의해 반사된 반사광의 광량이 최대가 되는 방향이, 상기 액정표시유닛의 법선에 대하여 3°이상 8°이하의 각도를 이루는 방향인 것을 특징으로 하는 액정표시장치.
- 제 5 항에 있어서,상기 반사체가, 광반사성을 갖는 복수의 오목부가 불규칙하게 연속해서 형성된 표면형상을 갖는 것을 특징으로 하는 액정표시장치.
- 제 5 항에 있어서,상기 반사체가 상기 액정표시유닛의 배면측에 설치되어 이루어지는 것을 특징으로 하는 액정표시장치.
- 제 5 항에 있어서,상기 반사체가 상기 액정표시유닛에 내장되어 이루어지는 것을 특징으로 하는 액정표시장치.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JPJP-P-2001-00228645 | 2001-07-27 | ||
JP2001228645A JP2003045215A (ja) | 2001-07-27 | 2001-07-27 | 面発光装置及び液晶表示装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20030011620A true KR20030011620A (ko) | 2003-02-11 |
KR100531588B1 KR100531588B1 (ko) | 2005-11-28 |
Family
ID=19061120
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR10-2002-0043489A Expired - Fee Related KR100531588B1 (ko) | 2001-07-27 | 2002-07-24 | 면발광장치 및 액정표시장치 |
Country Status (5)
Country | Link |
---|---|
US (1) | US6806922B2 (ko) |
EP (1) | EP1279891A1 (ko) |
JP (1) | JP2003045215A (ko) |
KR (1) | KR100531588B1 (ko) |
CN (1) | CN1173215C (ko) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100956049B1 (ko) * | 2003-03-07 | 2010-05-06 | 가부시키가이샤 엔프라스 | 도광판, 면광원 장치 및 화상 표시 장치 |
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US7370983B2 (en) | 2000-03-02 | 2008-05-13 | Donnelly Corporation | Interior mirror assembly with display |
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US7023418B2 (en) * | 2000-07-18 | 2006-04-04 | Matsushita Electric Industrial Co., Ltd. | Display device, electronic paper and electronic paper file |
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JP2003150073A (ja) * | 2001-08-27 | 2003-05-21 | Omron Corp | 画像表示装置及びフロントライト |
JP4162900B2 (ja) | 2002-02-05 | 2008-10-08 | アルプス電気株式会社 | 照明装置及び液晶表示装置 |
US6918674B2 (en) | 2002-05-03 | 2005-07-19 | Donnelly Corporation | Vehicle rearview mirror system |
AU2003237424A1 (en) | 2002-06-06 | 2003-12-22 | Donnelly Corporation | Interior rearview mirror system with compass |
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US7310177B2 (en) | 2002-09-20 | 2007-12-18 | Donnelly Corporation | Electro-optic reflective element assembly |
US7274501B2 (en) * | 2002-09-20 | 2007-09-25 | Donnelly Corporation | Mirror reflective element assembly |
KR100926299B1 (ko) * | 2002-11-13 | 2009-11-12 | 삼성전자주식회사 | 백라이트 어셈블리용 반사판 및 이를 사용하는 백라이트어셈블리 |
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KR101279224B1 (ko) * | 2007-02-28 | 2013-06-26 | 엘지디스플레이 주식회사 | 표시 장치 |
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JP4251592B2 (ja) * | 1999-10-25 | 2009-04-08 | 日東電工株式会社 | 面光源装置及び反射型液晶表示装置 |
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KR20020001594A (ko) * | 2000-06-26 | 2002-01-09 | 가마이 고로 | 도광판, 면광원 장치 및 반사형 액정 표시 장치 |
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JP2002184223A (ja) * | 2000-12-14 | 2002-06-28 | Alps Electric Co Ltd | 面発光装置及びその製造方法並びに液晶表示装置 |
-
2001
- 2001-07-27 JP JP2001228645A patent/JP2003045215A/ja active Pending
-
2002
- 2002-07-18 EP EP02016023A patent/EP1279891A1/en not_active Withdrawn
- 2002-07-23 US US10/200,940 patent/US6806922B2/en not_active Expired - Fee Related
- 2002-07-24 CN CNB021265631A patent/CN1173215C/zh not_active Expired - Fee Related
- 2002-07-24 KR KR10-2002-0043489A patent/KR100531588B1/ko not_active Expired - Fee Related
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR100956049B1 (ko) * | 2003-03-07 | 2010-05-06 | 가부시키가이샤 엔프라스 | 도광판, 면광원 장치 및 화상 표시 장치 |
Also Published As
Publication number | Publication date |
---|---|
JP2003045215A (ja) | 2003-02-14 |
CN1400498A (zh) | 2003-03-05 |
US20030025852A1 (en) | 2003-02-06 |
CN1173215C (zh) | 2004-10-27 |
EP1279891A1 (en) | 2003-01-29 |
US6806922B2 (en) | 2004-10-19 |
KR100531588B1 (ko) | 2005-11-28 |
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