KR100513718B1 - 평판표시소자용 조명장치 - Google Patents
평판표시소자용 조명장치 Download PDFInfo
- Publication number
- KR100513718B1 KR100513718B1 KR10-2002-0034651A KR20020034651A KR100513718B1 KR 100513718 B1 KR100513718 B1 KR 100513718B1 KR 20020034651 A KR20020034651 A KR 20020034651A KR 100513718 B1 KR100513718 B1 KR 100513718B1
- Authority
- KR
- South Korea
- Prior art keywords
- light
- guide plate
- light guide
- refractive surface
- refractive
- 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.)
- Expired - Fee Related
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
-
- 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
- G02B6/0015—Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it
- G02B6/002—Means for improving the coupling-in of light from the light source into 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, e.g. with collimating, focussing or diverging 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
- G02B6/0066—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 characterised by the light source being coupled to the light guide
- G02B6/0068—Arrangements of plural sources, e.g. multi-colour light sources
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)
- Planar Illumination Modules (AREA)
- Light Guides In General And Applications Therefor (AREA)
- Liquid Crystal (AREA)
Abstract
Description
Claims (10)
- 광을 방사하는 점광원; 및상기 광이 광축에 평행하게 진행하도록, 상기 점광원에 인접하게 위치하여 상기 광의 방사각을 증가시키는 제1굴절면과, 상기 제 1굴절면에 대응하도록 소정 간격 이격되어 위치하여 상기 광의 방사각을 감소시키는 제 2굴절면으로 이루어진 광학 부재를 포함하는 도광판;을 구비하는 것을 특징으로 하는 평판표시소자용 조명장치.
- 제 1 항에 있어서,상기 도광판의 바닥면 및 상기 바닥면에 대응하는 상부면 중 적어도 한 면에 홀로그램이 형성된 것을 특징으로 하는 평판표시소자용 조명장치.
- 제 1 항 또는 제 2 항에 있어서,상기 점광원은 LED 또는 LD인 것을 특징으로 하는 평판표시소자용 조명장치.
- 제 1 항 또는 제 2 항에 있어서,상기 광학 부재는 상기 도광판보다 작은 굴절률을 가지는 것을 특징으로 하는 평판표시소자용 조명장치.
- 제 4 항에 있어서,상기 광학 부재는 공기로 이루어진 에어 렌즈인 것을 특징으로 하는 평판표시소자용 조명장치.
- 제 1 항, 제 2 항 또는 제 5 항 중 어느 한 항에 있어서,상기 제 1굴절면 및 제 2굴절면은 실린더리컬 렌즈면과 동일한 형상으로 형성되어 대칭으로 배열되는 것을 특징으로 하는 평판표시소자용 조명장치.
- 제 1 항, 제 2 항 또는 제 5 항 중 어느 한 항에 있어서,상기 제 1굴절면 및 제 2굴절면은 프레넬 렌즈면과 동일한 형상으로 형성되어 대칭으로 배열되는 것을 특징으로 하는 평판표시소자용 조명장치.
- 제 1 항, 제 2 항 또는 제 5 항 중 어느 한 항에 있어서,상기 제 2굴절면은 상기 제 1굴절면에 비해 곡률 반경이 큰 것을 특징으로 하는 평판표시소자용 조명장치.
- 제 6 항에 있어서,상기 제 2굴절면은 상기 제 1굴절면에 비해 곡률 반경이 큰 것을 특징으로 하는 평판표시소자용 조명장치.
- 제 7 항에 있어서,상기 제 2굴절면은 상기 제 1굴절면에 비해 곡률 반경이 큰 것을 특징으로 하는 평판표시소자용 조명장치.
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-2002-0034651A KR100513718B1 (ko) | 2002-06-20 | 2002-06-20 | 평판표시소자용 조명장치 |
US10/259,842 US6935764B2 (en) | 2002-06-20 | 2002-09-30 | Illumination apparatus for planar display device |
CNB021471924A CN1268970C (zh) | 2002-06-20 | 2002-10-25 | 用于平面显示器的照明装置 |
JP2003173047A JP3804795B2 (ja) | 2002-06-20 | 2003-06-18 | 平板表示素子用照明装置 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-2002-0034651A KR100513718B1 (ko) | 2002-06-20 | 2002-06-20 | 평판표시소자용 조명장치 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20030097333A KR20030097333A (ko) | 2003-12-31 |
KR100513718B1 true KR100513718B1 (ko) | 2005-09-07 |
Family
ID=29728725
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR10-2002-0034651A Expired - Fee Related KR100513718B1 (ko) | 2002-06-20 | 2002-06-20 | 평판표시소자용 조명장치 |
Country Status (4)
Country | Link |
---|---|
US (1) | US6935764B2 (ko) |
JP (1) | JP3804795B2 (ko) |
KR (1) | KR100513718B1 (ko) |
CN (1) | CN1268970C (ko) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20190069979A (ko) * | 2017-12-12 | 2019-06-20 | 현대자동차주식회사 | 광확산 복합 렌즈 |
WO2021002695A1 (ko) * | 2019-07-03 | 2021-01-07 | 엘지이노텍 주식회사 | 조명 모듈, 조명 장치 및 램프 |
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US7347610B2 (en) * | 2005-01-26 | 2008-03-25 | Radiant Opto-Electronics Corporation | Light guide plate having light diffusing entities on light entering side |
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- 2002-06-20 KR KR10-2002-0034651A patent/KR100513718B1/ko not_active Expired - Fee Related
- 2002-09-30 US US10/259,842 patent/US6935764B2/en not_active Expired - Lifetime
- 2002-10-25 CN CNB021471924A patent/CN1268970C/zh not_active Expired - Fee Related
-
2003
- 2003-06-18 JP JP2003173047A patent/JP3804795B2/ja not_active Expired - Fee Related
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JP2000315413A (ja) * | 1999-04-30 | 2000-11-14 | Hitachi Ltd | 照明装置及びそれを用いた液晶表示装置 |
JP2001093320A (ja) * | 1999-09-27 | 2001-04-06 | Citizen Electronics Co Ltd | 面状光源ユニット |
KR20010057327A (ko) * | 1999-12-21 | 2001-07-04 | 양근창 | 평판조명장치 및 그에 사용되는 홀로그램 도광판의 제조방법 |
JP2001250415A (ja) * | 1999-12-28 | 2001-09-14 | Fujitsu Kasei Kk | 照明装置 |
JP2002025325A (ja) * | 2000-07-11 | 2002-01-25 | Matsushita Electric Ind Co Ltd | 照光装置 |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
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KR20190069979A (ko) * | 2017-12-12 | 2019-06-20 | 현대자동차주식회사 | 광확산 복합 렌즈 |
KR102487190B1 (ko) * | 2017-12-12 | 2023-01-10 | 현대자동차 주식회사 | 광확산 복합 렌즈 |
WO2021002695A1 (ko) * | 2019-07-03 | 2021-01-07 | 엘지이노텍 주식회사 | 조명 모듈, 조명 장치 및 램프 |
US11859779B2 (en) | 2019-07-03 | 2024-01-02 | Lg Innotek Co., Ltd. | Lighting module, lighting device and lamp |
US12359780B2 (en) | 2019-07-03 | 2025-07-15 | Lg Innotek Co. | Lighting module, lighting device and lamp |
Also Published As
Publication number | Publication date |
---|---|
US6935764B2 (en) | 2005-08-30 |
CN1268970C (zh) | 2006-08-09 |
CN1466005A (zh) | 2004-01-07 |
JP3804795B2 (ja) | 2006-08-02 |
JP2004163886A (ja) | 2004-06-10 |
KR20030097333A (ko) | 2003-12-31 |
US20030235047A1 (en) | 2003-12-25 |
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