KR102119808B1 - 백라이트 장치 - Google Patents
백라이트 장치 Download PDFInfo
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- KR102119808B1 KR102119808B1 KR1020130168803A KR20130168803A KR102119808B1 KR 102119808 B1 KR102119808 B1 KR 102119808B1 KR 1020130168803 A KR1020130168803 A KR 1020130168803A KR 20130168803 A KR20130168803 A KR 20130168803A KR 102119808 B1 KR102119808 B1 KR 102119808B1
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- light emitting
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Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
- F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
- F21K9/60—Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction
- F21K9/61—Optical arrangements integrated in the light source, e.g. for improving the colour rendering index or the light extraction using light guides
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
- F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
- F21K9/20—Light sources comprising attachment means
-
- 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
- G02B6/0023—Means for improving the coupling-in of light from the light source into the light guide provided by one optical element, or plurality thereof, placed between the light guide and the light source, or around the light source
- G02B6/0028—Light guide, e.g. taper
-
- 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
- G02B6/0023—Means for improving the coupling-in of light from the light source into the light guide provided by one optical element, or plurality thereof, placed between the light guide and the light source, or around the light source
- G02B6/0031—Reflecting element, sheet or layer
-
- 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
- G02B6/0081—Mechanical or electrical aspects of the light guide and light source in the lighting device peculiar to the adaptation to planar light guides, e.g. concerning packaging
- G02B6/0083—Details of electrical connections of light sources to drivers, circuit boards, or the like
-
- 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
- G02B6/0081—Mechanical or electrical aspects of the light guide and light source in the lighting device peculiar to the adaptation to planar light guides, e.g. concerning packaging
- G02B6/0086—Positioning aspects
- G02B6/0091—Positioning aspects of the light source relative to the light guide
-
- 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
- G02F1/133615—Edge-illuminating devices, i.e. illuminating from the side
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
- F21V2200/00—Use of light guides, e.g. fibre optic devices, in lighting devices or systems
- F21V2200/20—Use of light guides, e.g. fibre optic devices, in lighting devices or systems of light guides of a generally planar shape
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F21—LIGHTING
- F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
- F21Y2115/00—Light-generating elements of semiconductor light sources
- F21Y2115/10—Light-emitting diodes [LED]
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- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- General Engineering & Computer Science (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Planar Illumination Modules (AREA)
Abstract
Description
도 2는 도 1에 나타낸 발광소자 어레이를 나타낸 사시도이다.
도 3은 도 1에 나타낸 발광소자 패키지를 나타낸 단면도이다.
도 4는 도 1에 나타낸 백라이트 장치의 단면을 나타낸 도면이다.
도 5는 도 4에 나타낸 광가이드부재에 대한 다양한 실시예를 나타낸 도면이다.
도 6은 도 1에 나타낸 광가이드부재와 도광판의 결합 방식에 대한 다양한 실시예를 나타낸 도면이다.
도 7은 도 1에 나타낸 광가이드부재와 기판의 결합 방식에 대한 다양한 실시예를 나타낸 도면이다.
도 8은 제2실시예에 따른 백라이트 장치를 나타낸 분해 사시도이다.
도 9는 도 8에 나타낸 발광소자 어레이를 나타낸 사시도이다.
도 10은 도 8에 나타낸 백라이트 장치의 제1방향(x) 및 제2방향(y)으로의 단면을 나타낸 도면이다.
200 : 도광판
300 : 광학시트
400 : 반사시트
500 : 바텀커버
121 : 제1 발광소자 패키지
125 : 제2 발광소자 패키지
131 : 제1 광가이드부재
138 : 제2 광가이드부재
134 : 제1 내측경사면
135 : 제2 내측경사면
631 : 제1 가로측부
632 : 제2 가로측부
633 : 제1 세로측부
634 : 제2 세로측부
Claims (13)
- 복수의 발광소자 패키지가 제1 방향으로 배치된 기판;
상기 제1 방향과 직교하는 제2 방향으로 상기 복수의 발광소자 패키지와 이격 배치된 도광판; 및
상기 기판과 상기 도광판 사이에 배치되며, 상기 복수의 발광소자 패키지 중 상기 도광판의 제1측 영역에 인접한 제1 발광소자 패키지에서 방출된 광을 상기 제1측 영역으로 가이드하는 광가이드부재;를 포함하고,
상기 도광판은,
상기 제1측 영역과 반대되는 제2측 영역 및 상기 제1 및 제2측 영역 사이에 중앙영역을 포함하며,
상기 광가이드부재는 상기 복수의 발광소자 패키지의 측면 둘레 영역에 배치되며, 상기 도광판에 접촉하고,
상기 제1측 영역에 접촉되어, 상기 제1 발광소자 패키지에서 방출된 광을 상기 제1측 영역으로 가이드하는 제1 광가이드부재; 및
상기 제2측 영역에 접촉되어, 상기 복수의 발광소자 패키지 중 상기 제2측 영역에 인접한 제2 발광소자 패키지에서 방출된 광을 상기 제2측 영역으로 가이드하는 제2 광가이드부재;를 포함하고,
상기 제1 광가이드부재는,
상기 제1 발광소자 패키지에 인접하며 상기 제1 발광소자 패키지에서 방출된 광을 상기 제1측 영역으로 가이드하는 제1 경사면; 및
상기 제1 경사면에 코팅되며 반사물질을 포함하는 반사층;을 포함하고,
상기 제1 경사면은,
상기 기판의 상면으로부터 연장되며 상기 기판의 상면과 제1 경사각을 이루는 제1 내측 경사면; 및
상기 제1 내측 경사면 및 상기 도광판과 접하는 상기 제1 광가이드부재의 상부면 사이에 배치되며, 상기 기판의 상면과 제2 경사각을 이루는 제2 내측 경사면을 포함하고,
상기 제1 경사각은 상기 제2 경사각보다 크고,
상기 기판의 상면을 기준으로, 상기 제1 내측 경사면의 수직 방향 높이는 상기 제1 발광소자 패키지의 수직 방향 높이의 1배 내지 2배인 백라이트 장치. - 삭제
- 제1항에 있어서,
상기 제1 경사면은,
상기 제2 내측 경사면 및 상기 제1 광가이드부재의 상부면 사이에 배치되며, 상기 기판의 상면과 제3 경사각을 이루는 제3 내측 경사면을 더 포함하고,
상기 제3 경사각은 상기 제2 경사각보다 큰 백라이트 장치. - 제3항에 있어서,
상기 제1 경사각은 80도 내지 90도이고,
상기 제2 경사각은 50도 내지 60도이고,
상기 제3 경사각은 76도 내지 85도인 백라이트 장치. - 삭제
- 삭제
- 제1항에 있어서,
상기 제2 광가이드부재는,
상기 제1 광가이드부재와 동일한 형상을 가지며, 상기 제2 발광소자 패키지에 인접하며 상기 제2 발광소자 패키지에서 방출된 광을 상기 제2측 영역으로 가이드하는 제2 경사면을 포함하고,
상기 제2 경사면은 상기 제1 및 제2 내측 경사면과 각각 대응되는 내측 경사면들을 포함하는 백라이트 장치. - 삭제
- 제1항에 있어서,
상기 광가이드부재는,
상기 기판에 형성된 홀 또는 홈에 결합되는 돌기가 형성되거나,
또는 상기 기판에 형성된 돌기에 결합되는 홀 또는 홈이 형성된 백라이트 장치. - 삭제
- 삭제
- 삭제
- 삭제
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KR102498129B1 (ko) * | 2015-12-21 | 2023-02-17 | 엘지이노텍 주식회사 | 조명 장치 |
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