KR100657580B1 - 백라이트 유닛용 도광판 - Google Patents
백라이트 유닛용 도광판 Download PDFInfo
- Publication number
- KR100657580B1 KR100657580B1 KR1020040095342A KR20040095342A KR100657580B1 KR 100657580 B1 KR100657580 B1 KR 100657580B1 KR 1020040095342 A KR1020040095342 A KR 1020040095342A KR 20040095342 A KR20040095342 A KR 20040095342A KR 100657580 B1 KR100657580 B1 KR 100657580B1
- Authority
- KR
- South Korea
- Prior art keywords
- lamp
- guide plate
- light guide
- light
- insertion groove
- 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
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Classifications
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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
- G02F1/133524—Light-guides, e.g. fibre-optic bundles, louvered or jalousie light-guides
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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
- G02B6/0013—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
- G02B6/0016—Grooves, prisms, gratings, scattering particles or rough surfaces
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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
- G02B6/0013—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
- G02B6/0021—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 for housing at least a part of the light source, e.g. by forming holes or recesses
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)
Abstract
Description
Claims (6)
- 일정한 폭과 길이를 갖는 투명재질의 몸체로 이루어지며, 상기 몸체의 이면 길이방향 중앙에 폭 전체에 걸쳐 램프가 삽입되는 램프 삽입홈이 형성되고, 상기 램프 삽입홈의 바닥면을 따라 상기 램프로부터 방출되는 빛의 일부를 전반사시키는 프리즘이 일체로 돌출 형성되는 것을 특징으로 하는 백라이트 유닛용 도광판.
- 제 1 항에 있어서, 상기 프리즘의 단면 형상은 다각형인 것을 특징으로 하는 백라이트 유닛용 도광판.
- 제 1 항 또는 제 2 항에 있어서, 상기 프리즘의 높이는 0.5 내지 2.5mm인 것을 특징으로 하는 백라이트 유닛용 도광판.
- 제 1 항 또는 제 2 항에 있어서, 상기 램프 삽입홈의 폭은 1 내지 5mm인 것을 특징으로 하는 백라이트 유닛용 도광판.
- 제 1 항 또는 제 2 항에 있어서, 상기 몸체는 이면의 길이방향 중앙으로부터 양측으로 갈수록 두께가 감소하는 단면 프로파일을 갖는 것을 특징으로 하는 백라이트 유닛용 도광판.
- 제 1 항 또는 제 2 항에 있어서, 상기 프리즘의 정점부의 일부를 단면이 각형 또는 라운드형을 이루도록 절개 분리하여 형성한 확산부를 더 포함하는 것을 특징으로 하는 백라이트 유닛용 도광판.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020040095342A KR100657580B1 (ko) | 2004-11-19 | 2004-11-19 | 백라이트 유닛용 도광판 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020040095342A KR100657580B1 (ko) | 2004-11-19 | 2004-11-19 | 백라이트 유닛용 도광판 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20060056077A KR20060056077A (ko) | 2006-05-24 |
KR100657580B1 true KR100657580B1 (ko) | 2006-12-14 |
Family
ID=37151985
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020040095342A Expired - Fee Related KR100657580B1 (ko) | 2004-11-19 | 2004-11-19 | 백라이트 유닛용 도광판 |
Country Status (1)
Country | Link |
---|---|
KR (1) | KR100657580B1 (ko) |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0862426A (ja) * | 1994-08-16 | 1996-03-08 | Nec Corp | 液晶表示装置のバックライト |
JP2002245830A (ja) | 2001-02-14 | 2002-08-30 | Asahi Matsushita Electric Works Ltd | 導光板装置 |
JP2004127928A (ja) | 2003-07-17 | 2004-04-22 | Masanori Aizawa | 液晶表示器用バックライト装置 |
JP2004157472A (ja) | 2002-11-08 | 2004-06-03 | Alps Electric Co Ltd | 導光材および照明装置 |
-
2004
- 2004-11-19 KR KR1020040095342A patent/KR100657580B1/ko not_active Expired - Fee Related
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0862426A (ja) * | 1994-08-16 | 1996-03-08 | Nec Corp | 液晶表示装置のバックライト |
JP2002245830A (ja) | 2001-02-14 | 2002-08-30 | Asahi Matsushita Electric Works Ltd | 導光板装置 |
JP2004157472A (ja) | 2002-11-08 | 2004-06-03 | Alps Electric Co Ltd | 導光材および照明装置 |
JP2004127928A (ja) | 2003-07-17 | 2004-04-22 | Masanori Aizawa | 液晶表示器用バックライト装置 |
Also Published As
Publication number | Publication date |
---|---|
KR20060056077A (ko) | 2006-05-24 |
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Patent event code: PA01091R01D Comment text: Patent Application Patent event date: 20041119 |
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Comment text: Registration of Establishment Patent event date: 20061207 Patent event code: PR07011E01D |
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