JP5575626B2 - 複数の導光板を有するバックライトアセンブリ - Google Patents
複数の導光板を有するバックライトアセンブリ Download PDFInfo
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- JP5575626B2 JP5575626B2 JP2010272957A JP2010272957A JP5575626B2 JP 5575626 B2 JP5575626 B2 JP 5575626B2 JP 2010272957 A JP2010272957 A JP 2010272957A JP 2010272957 A JP2010272957 A JP 2010272957A JP 5575626 B2 JP5575626 B2 JP 5575626B2
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- Prior art keywords
- light
- guide plate
- backlight assembly
- light emitting
- light guide
- 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
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- 238000009792 diffusion process Methods 0.000 claims description 32
- 239000000463 material Substances 0.000 claims description 4
- 239000012780 transparent material Substances 0.000 claims description 2
- 239000004973 liquid crystal related substance Substances 0.000 description 40
- 230000003287 optical effect Effects 0.000 description 14
- 238000000034 method Methods 0.000 description 6
- 238000009826 distribution Methods 0.000 description 5
- 230000004048 modification Effects 0.000 description 5
- 238000012986 modification Methods 0.000 description 5
- 230000002093 peripheral effect Effects 0.000 description 4
- 238000002347 injection Methods 0.000 description 3
- 239000007924 injection Substances 0.000 description 3
- 239000004033 plastic Substances 0.000 description 3
- 229920003023 plastic Polymers 0.000 description 3
- 239000000758 substrate Substances 0.000 description 3
- 230000004075 alteration Effects 0.000 description 2
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 238000001746 injection moulding Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 229920000139 polyethylene terephthalate Polymers 0.000 description 2
- 239000005020 polyethylene terephthalate Substances 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- -1 Poly Ethylene Terephthalate Polymers 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 239000002390 adhesive tape Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 238000003860 storage Methods 0.000 description 1
Classifications
-
- 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
-
- 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
- G02B6/0075—Arrangements of multiple light guides
- G02B6/0078—Side-by-side arrangements, e.g. for large area displays
- G02B6/008—Side-by-side arrangements, e.g. for large area displays of the partially overlapping type
-
- 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
-
- 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
- G02F1/133608—Direct backlight including particular frames or supporting means
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)
Description
50 発光ユニット
200 導光板
210 入光部
230 対光部
400 光源カバー
600 固定部材
700 突出固定部材
800 拡散板
Claims (13)
- 互いに隣接して配列されて表示パネルに光を供給する複数の発光ユニットと、
前記複数の発光ユニットを収容する下部コンテナとを含むバックライトアセンブリであって、
少なくとも一つの前記発光ユニットは、前記光を放射する光源モジュールと、前記光源モジュールから放射した光を前記表示パネル側にガイドする導光板と、前記光源モジュールをカバーする光源カバーと、を含み、
少なくとも一つの前記発光ユニットの前記光源カバーは、隣接する前記発光ユニットの前記導光板を固定する固定部材と、を含み、
前記導光板は、前記光源モジュールからの前記光を入射する入光部と、前記入光部を通じて供給された前記光が反射及び散乱して放出される導光部と、前記入光部に対向する対光部とを有し、
前記固定部材は、隣接する発光ユニットの導光板の対光部と結合されるとともに、前記隣接する発光ユニットの導光板の対光部を囲む
ことを特徴とするバックライトアセンブリ。 - 前記光源カバーは、隣接する前記発光ユニットの前記導光板の前記対光部を支持する上部カバーを有することを特徴とする請求項1に記載のバックライトアセンブリ。
- 前記上部カバーは、前記入光部に対応する入光対面部を具備し、
前記固定部材は、
前記入光対面部と結合する第1固定部と、
隣接する前記発光ユニットの前記対光部の上面と結合する第2固定部と、
前記第1固定部と前記第2固定部とを連結する連結部と、
を具備することを特徴とする請求項2に記載のバックライトアセンブリ。 - 前記対光部は、前記入光部と対向する対光面を有し、前記連結部は前記対光面から離隔して位置することを特徴とする請求項3に記載のバックライトアセンブリ。
- 前記固定部材は、反射材からなり、シート形状を有することを特徴とする請求項3に記載のバックライトアセンブリ。
- 前記固定部材は、透明材質からなり、シート形状を有することを特徴とする請求項3に記載のバックライトアセンブリ。
- 互いに隣接して配列されて表示パネルに光を供給する複数の発光ユニットと、
前記複数の発光ユニットを収容する下部コンテナとを含むバックライトアセンブリであって、
少なくとも一つの前記発光ユニットは、前記光を放射する光源モジュールと、前記光源モジュールから放射した光を前記表示パネル側にガイドする導光板と、前記光源モジュールをカバーする光源カバーと、を含み、
少なくとも一つの前記発光ユニットの前記光源カバーは、隣接する前記発光ユニットの前記導光板を固定する固定部材とを含み、
前記導光板は、前記光源モジュールからの前記光を入射する入光部と、前記入光部を通じて供給された前記光が反射及び散乱して放出される導光部と、前記入光部に対向する対光部とを有し、
前記導光板の前記対光部は、固定溝を有し、
前記光源カバーは、隣接する前記発光ユニットの前記対光部を支持する上部カバーを有し、
前記固定部材は、前記上部カバーから突出して形成され、隣接する前記発光ユニットの前記対光部の前記固定溝に配置される
ことを特徴とするバックライトアセンブリ。 - 前記固定部材は、隣接する前記発光ユニットの前記対光部の前記固定溝に配置される胴体部を含むことを特徴とする請求項7に記載のバックライトアセンブリ。
- 前記固定溝は、隣接する前記発光ユニットの前記対光部を通して形成された固定ホールであり、前記固定部材は、前記胴体部から延長して形成された蓋を具備し、前記蓋は、隣接する前記発光ユニットの前記対光部の上面に配置され、
前記固定ホールは、前記導光板に沿う方向に延長された長軸を有し、前記固定部材の前記蓋は前記固定ホールの前記長軸より短い幅を有することを特徴とする請求項8に記載のバックライトアセンブリ。 - 前記固定部材の前記胴体部の最上面は、前記対光部の上面より低く配置されることを特徴とする請求項8に記載のバックライトアセンブリ。
- 前記固定部材の前記胴体部の最上面は、前記対光部の上面より高く配置され、前記胴体部の最上部の水平断面積は、前記対光部の前記固定溝の水平断面積より小さいことを特徴とする請求項8に記載のバックライトアセンブリ。
- 前記固定溝は、前記対光部を通して形成された固定ホールであり、前記固定部材は、前記胴体部から延長して形成された蓋及び前記蓋から延長して形成された第2突出部を有し、前記蓋は前記対光部の上面に配置され、拡散板をさらに含み、前記第2突出部は前記固定溝の水平断面積より小さい水平断面積を有することを特徴とする請求項8に記載のバックライトアセンブリ。
- 有効発光領域を含み、前記固定部材は前記有効発光領域の外部に配置され、
前記固定部材は、前記有効発光領域の内部にさらに配置されることを特徴とする請求項1に記載のバックライトアセンブリ。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-2010-0005289 | 2010-01-20 | ||
KR1020100005289A KR101684478B1 (ko) | 2010-01-20 | 2010-01-20 | 복수의 도광판을 갖는 백라이트 어셈블리 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2011151005A JP2011151005A (ja) | 2011-08-04 |
JP5575626B2 true JP5575626B2 (ja) | 2014-08-20 |
Family
ID=43479265
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2010272957A Expired - Fee Related JP5575626B2 (ja) | 2010-01-20 | 2010-12-07 | 複数の導光板を有するバックライトアセンブリ |
Country Status (5)
Country | Link |
---|---|
US (1) | US8556491B2 (ja) |
EP (1) | EP2348340A1 (ja) |
JP (1) | JP5575626B2 (ja) |
KR (1) | KR101684478B1 (ja) |
CN (1) | CN102147079B (ja) |
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-
2010
- 2010-01-20 KR KR1020100005289A patent/KR101684478B1/ko active IP Right Grant
- 2010-09-28 US US12/892,545 patent/US8556491B2/en not_active Expired - Fee Related
- 2010-10-27 EP EP10014000A patent/EP2348340A1/en not_active Withdrawn
- 2010-12-07 JP JP2010272957A patent/JP5575626B2/ja not_active Expired - Fee Related
-
2011
- 2011-01-07 CN CN201110002692.XA patent/CN102147079B/zh not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
EP2348340A1 (en) | 2011-07-27 |
US20110176292A1 (en) | 2011-07-21 |
KR101684478B1 (ko) | 2016-12-09 |
US8556491B2 (en) | 2013-10-15 |
KR20110085476A (ko) | 2011-07-27 |
JP2011151005A (ja) | 2011-08-04 |
CN102147079A (zh) | 2011-08-10 |
CN102147079B (zh) | 2015-07-08 |
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