KR100988936B1 - 도광판 및 이를 갖는 백라이트 어셈블리 - Google Patents
도광판 및 이를 갖는 백라이트 어셈블리 Download PDFInfo
- Publication number
- KR100988936B1 KR100988936B1 KR1020080099172A KR20080099172A KR100988936B1 KR 100988936 B1 KR100988936 B1 KR 100988936B1 KR 1020080099172 A KR1020080099172 A KR 1020080099172A KR 20080099172 A KR20080099172 A KR 20080099172A KR 100988936 B1 KR100988936 B1 KR 100988936B1
- Authority
- KR
- South Korea
- Prior art keywords
- light
- pattern
- guide plate
- light guide
- 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
Links
- 239000012788 optical film Substances 0.000 abstract description 4
- 239000004973 liquid crystal related substance Substances 0.000 description 11
- 239000000463 material Substances 0.000 description 6
- 238000009792 diffusion process Methods 0.000 description 5
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- 230000000694 effects Effects 0.000 description 2
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 2
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- 238000009125 cardiac resynchronization therapy Methods 0.000 description 1
- 230000008859 change Effects 0.000 description 1
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- 238000004519 manufacturing process Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- -1 polyethylene terephthalate Polymers 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
- 239000012780 transparent material Substances 0.000 description 1
Images
Classifications
-
- 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
- G02B5/00—Optical elements other than lenses
- G02B5/04—Prisms
- G02B5/045—Prism arrays
-
- 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
- G02B6/0058—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
- G02F1/133524—Light-guides, e.g. fibre-optic bundles, louvered or jalousie light-guides
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 (14)
- 광이 입사되는 입광부;상기 입광부에 마주하는 대광부;상기 입광부의 상변과 상기 대광부의 상변을 연결하는 출사부;상기 입광부의 하변과 상기 대광부의 하변을 연결하여 상기 출사부와 평행한 반사부를 포함하며,상기 반사부는,상기 입광부로 유입되는 광을 퍼지게 하도록 ㎛ 급으로 형성되는 제1 패턴을 형성하고,상기 출사부는,상기 반사부에서 전달되는 광을 수직 방향으로 유도하도록 nm 급으로 형성되는 제2 패턴을 형성하며,상기 제1 패턴은,상기 반사부에서 상기 출사부 반대 방향으로 돌출되는 돌기 패턴과상기 반사부에서 상기 출사부를 향하여 오목하게 들어가는 홈 패턴을 포함하고,상기 돌기 패턴은 상기 입광부를 향하여 사다리꼴 단면을 형성하며,상기 홈 패턴은 사각뿔 홈으로 형성되고,상기 제2 패턴은상기 출사부에서 상기 반사부 반대 방향으로 돌출되며 상기 입광부를 향하여 삼각형 단면을 가지는 프리즘 패턴으로 형성되는 도광판.
- 삭제
- 삭제
- 제1 항에 있어서,상기 돌기 패턴은 상기 입광부에서 상기 대광부까지 일체로 연결되는 도광판.
- 제4 항에 있어서,상기 돌기 패턴들은 간격을 형성하는 도광판.
- 제5 항에 있어서,상기 홈 패턴은 상기 돌기 패턴들 사이에 형성되는 도광판.
- 제6 항에 있어서,상기 홈 패턴은 상기 돌기 패턴들 사이에 번갈아 형성되는 도광판.
- 제7 항에 있어서,상기 홈 패턴들은 이웃하는 상기 돌기 패턴들 사이에서 간격을 형성하는 도광판.
- 삭제
- 제6 항에 있어서,상기 사각뿔 홈은 직사각형 뿔 홈 또는 정사각형 뿔 홈으로 형성되는 도광판.
- 삭제
- 제10 항에 있어서,상기 제2 패턴은 상기 입광부에서 상기 대광부까지 일체로 연결되는 도광판.
- 삭제
- 광을 발생하는 LED;상기 LED에서 발생된 광의 경로를 가이드 하는 제1 항, 제4 항 내지 제8 항, 제10 항 및 제12 항 중 어느 한 항의 도광판; 및상기 도광판의 하부에 배치되는 반사 시트를 포함하는 백라이트 어셈블리.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020080099172A KR100988936B1 (ko) | 2008-10-09 | 2008-10-09 | 도광판 및 이를 갖는 백라이트 어셈블리 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020080099172A KR100988936B1 (ko) | 2008-10-09 | 2008-10-09 | 도광판 및 이를 갖는 백라이트 어셈블리 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20100040101A KR20100040101A (ko) | 2010-04-19 |
KR100988936B1 true KR100988936B1 (ko) | 2010-10-20 |
Family
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KR1020080099172A Expired - Fee Related KR100988936B1 (ko) | 2008-10-09 | 2008-10-09 | 도광판 및 이를 갖는 백라이트 어셈블리 |
Country Status (1)
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KR (1) | KR100988936B1 (ko) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN102411165B (zh) * | 2010-07-23 | 2013-08-07 | 颖台科技股份有限公司 | 导光装置及具有该导光装置的背光模组与液晶显示器 |
KR101808185B1 (ko) | 2010-12-27 | 2018-01-19 | 삼성전자 주식회사 | 도광판, 이를 포함하는 백라이트유닛, 디스플레이장치 및 도광판 제조방법 |
KR20160007695A (ko) | 2014-06-24 | 2016-01-21 | 삼성디스플레이 주식회사 | 백라이트 어셈블리 및 그를 포함하는 표시장치 |
KR102598767B1 (ko) * | 2018-12-24 | 2023-11-03 | 엘지디스플레이 주식회사 | 슬림형 백라이트 유닛 및 이를 포함하는 액정 표시 장치 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20010046582A (ko) * | 1999-11-13 | 2001-06-15 | 김춘호 | 표시 장치용 백라이트 장치 |
KR20040030110A (ko) * | 2001-08-15 | 2004-04-08 | 쓰리엠 이노베이티브 프로퍼티즈 컴파니 | 후방 조명 디스플레이와 함께 사용하기 위한 라이트가이드 |
KR20080004140A (ko) * | 2006-07-04 | 2008-01-09 | 삼성에스디아이 주식회사 | 도광판 |
KR20080004139A (ko) * | 2006-07-04 | 2008-01-09 | 삼성에스디아이 주식회사 | 백라이트 유니트의 도광판 및 이를 구비한 백라이트 유니트 |
-
2008
- 2008-10-09 KR KR1020080099172A patent/KR100988936B1/ko not_active Expired - Fee Related
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR20010046582A (ko) * | 1999-11-13 | 2001-06-15 | 김춘호 | 표시 장치용 백라이트 장치 |
KR20040030110A (ko) * | 2001-08-15 | 2004-04-08 | 쓰리엠 이노베이티브 프로퍼티즈 컴파니 | 후방 조명 디스플레이와 함께 사용하기 위한 라이트가이드 |
KR20080004140A (ko) * | 2006-07-04 | 2008-01-09 | 삼성에스디아이 주식회사 | 도광판 |
KR20080004139A (ko) * | 2006-07-04 | 2008-01-09 | 삼성에스디아이 주식회사 | 백라이트 유니트의 도광판 및 이를 구비한 백라이트 유니트 |
Also Published As
Publication number | Publication date |
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KR20100040101A (ko) | 2010-04-19 |
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