KR100637750B1 - 직하형 백라이트유니트 - Google Patents
직하형 백라이트유니트 Download PDFInfo
- Publication number
- KR100637750B1 KR100637750B1 KR1020040081593A KR20040081593A KR100637750B1 KR 100637750 B1 KR100637750 B1 KR 100637750B1 KR 1020040081593 A KR1020040081593 A KR 1020040081593A KR 20040081593 A KR20040081593 A KR 20040081593A KR 100637750 B1 KR100637750 B1 KR 100637750B1
- Authority
- KR
- South Korea
- Prior art keywords
- lamp
- plate
- backlight unit
- diffuser plate
- diffusion
- Prior art date
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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
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/02—Diffusing elements; Afocal elements
- G02B5/0205—Diffusing elements; Afocal elements characterised by the diffusing properties
- G02B5/021—Diffusing elements; Afocal elements characterised by the diffusing properties the diffusion taking place at the element's surface, e.g. by means of surface roughening or microprismatic structures
- G02B5/0226—Diffusing elements; Afocal elements characterised by the diffusing properties the diffusion taking place at the element's surface, e.g. by means of surface roughening or microprismatic structures having particles on the surface
-
- 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
- G02F1/133604—Direct backlight with lamps
-
- 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
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Planar Illumination Modules (AREA)
- Liquid Crystal (AREA)
Abstract
Description
Claims (2)
- 빛을 방출하는 다수의 램프;상면이 개방된 케이스 형상으로 마련되고, 내부에는 상기 램프가 설치되며, 상기 램프에서 방출되는 빛을 상측으로 반사하는 반사판;상기 반사판의 개방면에 설치된 확산판, 상기 확산판의 저면에 일체로 형성되어 상기 램프와 대향하며 상기 램프에서 방출되는 빛을 확산하는 다수의 마이크로렌즈 및 상기 확산판의 상면에 일체로 형성되어 상기 확산판을 통과한 빛을 집광하는 다수의 프리즘을 가지는 확산 겸용 프리즘시트를 구비하는 것을 특징으로 하는 직하형 백라이트유니트.
- 제 1 항에 있어서,상기 확산판의 내부에는 비드(Bead)가 설치된 것을 특징으로 하는 직하형 백라이트유니트.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020040081593A KR100637750B1 (ko) | 2004-10-13 | 2004-10-13 | 직하형 백라이트유니트 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020040081593A KR100637750B1 (ko) | 2004-10-13 | 2004-10-13 | 직하형 백라이트유니트 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20060032690A KR20060032690A (ko) | 2006-04-18 |
KR100637750B1 true KR100637750B1 (ko) | 2006-10-24 |
Family
ID=37141969
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
KR1020040081593A KR100637750B1 (ko) | 2004-10-13 | 2004-10-13 | 직하형 백라이트유니트 |
Country Status (1)
Country | Link |
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KR (1) | KR100637750B1 (ko) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
TWI301548B (en) * | 2006-10-19 | 2008-10-01 | Efun Technology Co Ltd | Brightness enhancement film for diffusion and directing light |
KR100932606B1 (ko) * | 2006-04-28 | 2009-12-17 | 주식회사 엘지화학 | 광학필름 및 이를 포함하는 백라이트유닛 |
KR100837402B1 (ko) * | 2006-08-24 | 2008-06-12 | 삼성전자주식회사 | 광각 확산기 및 이를 적용한 액정표시장치 |
KR100880724B1 (ko) * | 2007-03-14 | 2009-02-02 | 제일모직주식회사 | 광확산 물질을 포함하는 액정표시장치용 도광판 및 이를이용한 액정표시장치 백라이트 유닛 |
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2004
- 2004-10-13 KR KR1020040081593A patent/KR100637750B1/ko active IP Right Grant
Also Published As
Publication number | Publication date |
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KR20060032690A (ko) | 2006-04-18 |
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