KR100765138B1 - 백라이트 어셈블리 및 이를 이용한 액정표시장치 - Google Patents
백라이트 어셈블리 및 이를 이용한 액정표시장치 Download PDFInfo
- Publication number
- KR100765138B1 KR100765138B1 KR1020010018706A KR20010018706A KR100765138B1 KR 100765138 B1 KR100765138 B1 KR 100765138B1 KR 1020010018706 A KR1020010018706 A KR 1020010018706A KR 20010018706 A KR20010018706 A KR 20010018706A KR 100765138 B1 KR100765138 B1 KR 100765138B1
- Authority
- KR
- South Korea
- Prior art keywords
- light
- groove
- light source
- luminance
- liquid crystal
- 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
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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
- G02B6/0033—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
-
- 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
- G02B6/0045—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 by shaping at least a portion of the light guide
- G02B6/0046—Tapered light guide, e.g. wedge-shaped 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
- 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
- G02B6/007—Incandescent lamp or gas discharge lamp
- G02B6/0071—Incandescent lamp or gas discharge lamp with elongated shape, e.g. tube
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)
- Liquid Crystal (AREA)
- Light Guides In General And Applications Therefor (AREA)
Abstract
Description
Claims (7)
- 광을 발생시켜 일방향으로 출사시키는 광원 어셈블리; 및상기 광원 어셈블리로부터 공급된 상기 광을 가이드하고, 그 밑면에 다면체 형상을 갖는 적어도 1 개 이상의 휘도 강화 홈(groove)이 형성된 휘도 강화 도광판을 포함하고,상기 휘도 강화 홈은 상기 광원 어셈블리와 대향하는 측벽의 면적이 나머지 측벽의 면적보다 큰 백라이트 어셈블리.
- 제 1 항에 있어서, 휘도 강화 도광판에 형성된 상기 휘도 강화 홈은 상기 광원 어셈블리에 가까울수록 제 1 크기 및 제 1 밀도를 갖고, 상기 광원 어셈블리로부터 멀어질수록 제 1 크기보다 큰 제 2 크기 및 제 1 밀도보다 낮은 제 2 밀도를갖도록 연속적으로 형상이 변경되는 백라이트 어셈블리.
- 삭제
- 제 1 항에 있어서, 상기 다면체는 삼각뿔, 사각뿔, 오각뿔 중 어느 하나인 백라이트 어셈블리.
- 제 1 항에 있어서, 상기 휘도 강화 도광판의 상면에는 제 1 방향을 갖으며 단면이 V 자형인 제 1 휘도 집중 홈이 적어도 1 개 이상 형성되는 백라이트 어셈블리.
- 제 5 항에 있어서, 상기 제 1 휘도 집중 홈의 상면에는 밑면에 상기 제 1 휘도 집중 홈과 맞춤 결합되도록 형성된 결합홈 및 상면에 제 2 방향을 갖으며 단면이 V 자형인 제 2 휘도 집중 홈이 형성된 휘도 집중 도광판이 더 설치되는 백라이트 어셈블리.
- 액정을 정밀하게 제어하여 화상이 디스플레이 되도록 하는 액정표시패널 어셈블리; 및광을 발생시켜 일방향으로 출사시키는 광원 어셈블리, 상기 광원 어셈블리로부터 공급된 상기 광을 가이드하고, 그 밑면에 다면체 형상을 갖는 적어도 1개 이상의 휘도 강화 홈이 형성된 도광판, 상기 도광판에서 출사된 광이 통과하는 광학 시트류, 상기 광원 어셈블리, 도광판, 광학 시트류를 수납하며 상기 액정표시패널 어셈블리와 결합되는 수납용기를 포함하는 백라이트 어셈블리를 포함하고,상기 휘도 강화 홈은 사기 광원 어셈블리와 대향하는 측벽의 면적이 나머지 측벽의 면적보다 큰 액정표시장치.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020010018706A KR100765138B1 (ko) | 2001-04-09 | 2001-04-09 | 백라이트 어셈블리 및 이를 이용한 액정표시장치 |
US09/859,801 US6755545B2 (en) | 2001-04-09 | 2001-05-18 | Light guide plate for backlighting a liquid crystal display |
US10/393,270 US6851815B2 (en) | 2001-04-09 | 2003-03-21 | Light guide plate with trigonal recesses |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR1020010018706A KR100765138B1 (ko) | 2001-04-09 | 2001-04-09 | 백라이트 어셈블리 및 이를 이용한 액정표시장치 |
Publications (2)
Publication Number | Publication Date |
---|---|
KR20020078354A KR20020078354A (ko) | 2002-10-18 |
KR100765138B1 true KR100765138B1 (ko) | 2007-10-15 |
Family
ID=19708006
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
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KR1020010018706A KR100765138B1 (ko) | 2001-04-09 | 2001-04-09 | 백라이트 어셈블리 및 이를 이용한 액정표시장치 |
Country Status (2)
Country | Link |
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US (2) | US6755545B2 (ko) |
KR (1) | KR100765138B1 (ko) |
Families Citing this family (45)
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KR100423952B1 (ko) * | 2001-05-11 | 2004-03-22 | 주식회사 엘에스텍 | 비대칭 도광패턴부를 가지는 면광원 장치 |
KR100799156B1 (ko) * | 2001-07-13 | 2008-01-29 | 삼성전자주식회사 | 도광판, 이의 제조 방법, 이를 이용한 액정표시장치 |
US6880946B2 (en) * | 2002-01-15 | 2005-04-19 | Reflexite Corporation | Grooved optical microstructure light collimating films |
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JP6380761B2 (ja) * | 2015-07-29 | 2018-08-29 | パナソニックIpマネジメント株式会社 | ライン照明表示装置および導光体 |
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- 2001-04-09 KR KR1020010018706A patent/KR100765138B1/ko active IP Right Grant
- 2001-05-18 US US09/859,801 patent/US6755545B2/en not_active Expired - Lifetime
-
2003
- 2003-03-21 US US10/393,270 patent/US6851815B2/en not_active Expired - Lifetime
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KR19990008855A (ko) * | 1997-07-04 | 1999-02-05 | 최영진 | LCD 모듈의 백 라이터(Back lighter) |
KR20000029609A (ko) * | 1999-01-27 | 2000-05-25 | 나카무라 하사오 | 도광체 |
KR20000029608A (ko) * | 1999-01-27 | 2000-05-25 | 나카무라 하사오 | 도광체 |
JP2000221329A (ja) * | 1999-01-29 | 2000-08-11 | Stanley Electric Co Ltd | 面光源装置 |
JP2000314882A (ja) * | 1999-04-30 | 2000-11-14 | Hitachi Ltd | 液晶表示装置および導光板および導光板の製造方法 |
KR20000030582A (ko) * | 2000-03-08 | 2000-06-05 | 박인협 | 액정 표시 장치의 후면 발광체용 도광판 제조 방법 |
Also Published As
Publication number | Publication date |
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US20020145860A1 (en) | 2002-10-10 |
US6851815B2 (en) | 2005-02-08 |
KR20020078354A (ko) | 2002-10-18 |
US6755545B2 (en) | 2004-06-29 |
US20030156404A1 (en) | 2003-08-21 |
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