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1. WO2013154370 - BACKLIGHT UNIT

Publication Number WO/2013/154370
Publication Date 17.10.2013
International Application No. PCT/KR2013/003057
International Filing Date 11.04.2013
IPC
G02F 1/1333 2006.01
GPHYSICS
02OPTICS
FDEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH IS MODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THE DEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY, COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g. SWITCHING, GATING, MODULATING OR DEMODULATING; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; FREQUENCY-CHANGING; NON-LINEAR OPTICS; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
1Devices 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
01for the control of the intensity, phase, polarisation or colour
13based on liquid crystals, e.g. single liquid crystal display cells
133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
1333Constructional arrangements
G02F 1/13357 2006.01
GPHYSICS
02OPTICS
FDEVICES OR ARRANGEMENTS, THE OPTICAL OPERATION OF WHICH IS MODIFIED BY CHANGING THE OPTICAL PROPERTIES OF THE MEDIUM OF THE DEVICES OR ARRANGEMENTS FOR THE CONTROL OF THE INTENSITY, COLOUR, PHASE, POLARISATION OR DIRECTION OF LIGHT, e.g. SWITCHING, GATING, MODULATING OR DEMODULATING; TECHNIQUES OR PROCEDURES FOR THE OPERATION THEREOF; FREQUENCY-CHANGING; NON-LINEAR OPTICS; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
1Devices 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
01for the control of the intensity, phase, polarisation or colour
13based on liquid crystals, e.g. single liquid crystal display cells
133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
1333Constructional arrangements
1335Structural association of cells with optical devices, e.g. polarisers or reflectors
13357Illuminating devices
CPC
G02B 6/0083
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
6Light guides
0001specially adapted for lighting devices or systems
0011the light guides being planar or of plate-like form
0081Mechanical 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
0083Details of electrical connections of light sources to drivers, circuit boards, or the like
G02B 6/0085
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
6Light guides
0001specially adapted for lighting devices or systems
0011the light guides being planar or of plate-like form
0081Mechanical 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
0085Means for removing heat created by the light source from the package
G02B 6/0088
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
6Light guides
0001specially adapted for lighting devices or systems
0011the light guides being planar or of plate-like form
0081Mechanical 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
0086Positioning aspects
0088of the light guide or other optical sheets in the package
G02B 6/009
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
6Light guides
0001specially adapted for lighting devices or systems
0011the light guides being planar or of plate-like form
0081Mechanical 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
0086Positioning aspects
009of the light source in the package
Applicants
  • 티티엠주식회사 TTM [KR]/[KR]
Inventors
  • 최유진 CHOI, Eu Gene
  • 남기현 NAM, Gi Hyoun
  • 김병호 KIM, Byeong Ho
  • 차준선 CHA, Jun Sun
Agents
  • 고광옥 KO, Kwang-Ok
Priority Data
10-2012-003828013.04.2012KR
Publication Language Korean (KO)
Filing Language Korean (KO)
Designated States
Title
(EN) BACKLIGHT UNIT
(FR) UNITÉ DE RÉTROÉCLAIRAGE
(KO) 백라이트 유닛
Abstract
(EN)
The present invention relates to a backlight unit. The backlight unit of the present invention comprises: a light guide plate for scattering the light introduced into the side surface thereof; a light-emitting element for emitting light into the side surface of the light guide plate; a circuit board, the length of which corresponds to the lateral length of the light guide plate; a heat pipe for absorbing heat generated by the circuit board and dissipating said heat; and a housing for accommodating at least one of the heat pipe, the circuit board, the light-emitting element and the light guide plate. The heat pipe includes: one end that is elongated, for absorbing heat from the circuit board; and another end that is bent at an angle different from that of the first end and elongated to dissipate the heat absorbed by the first end. According to the present invention, one end of the heat pipe is elongated to increase a heat absorbing area, thus providing excellent heat-dissipating performance.
(FR)
La présente invention concerne unité de rétroéclairage. L'unité de rétroéclairage de la présente invention comprend : une plaque de guidage de la lumière permettant de diffuser la lumière introduite dans la surface latérale de celle-ci ; un élément électroluminescent permettant d'émettre une lumière dans la surface latérale de la plaque de guidage de la lumière ; une carte de circuits imprimés, dont la longueur correspond à la longueur latérale de la plaque de guidage de la lumière ; un caloduc permettant d'absorber la chaleur dégagée par la carte de circuits imprimés et de dissiper ladite chaleur ; et un boîtier permettant d'accueillir le caloduc et/ou la carte de circuits imprimés et/ou l'élément électroluminescent et/ou la plaque de guidage de la lumière. Le caloduc comprend : une extrémité qui est allongée, permettant d'absorber la chaleur provenant de la carte de circuits imprimés ; et une autre extrémité qui est courbée selon un angle différent de celui de la première extrémité et qui est allongée pour dissiper la chaleur absorbée par la première extrémité. Selon la présente invention, une extrémité du caloduc est allongée pour agrandir une zone d'absorption de chaleur, ce qui permet d'obtenir d'excellentes performances de dissipation thermique.
(KO)
본 발명은 백라이트 유닛에 관한 것이다. 본 발명은, 측면으로 유입된 빛을 분산시키는 도광판; 상기 도광판의 측면으로 빛을 발광하는 발광소자; 상기 도광판의 측방측 길이에 대응하는 길이를 갖는 회로기판; 상기 회로기판에서 발생되는 열을 흡열하여 방열하는 히트파이프; 및 상기 히트파이프와 상기 회로기판과 상기 발광소자 및 상기 도광판 중 적어도 어느 하나를 수용하는 하우징;을 포함하고, 상기 히트파이프는, 상기 회로기판의 열을 흡열하는 길게 형성된 일측부; 및 상기 일측부와 상이한 각도로 절곡되어 일측부에서 흡열된 열을 방열하는 길게 형성된 타측부;를 포함한다. 본 발명은, 일측부가 길게 형성되므로 흡열면적이 증가되며, 이로 인하여 우수한 방열성능을 제공한다.
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