TW201407097A - Led光源模組及直下式led電視 - Google Patents
Led光源模組及直下式led電視 Download PDFInfo
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- TW201407097A TW201407097A TW101127833A TW101127833A TW201407097A TW 201407097 A TW201407097 A TW 201407097A TW 101127833 A TW101127833 A TW 101127833A TW 101127833 A TW101127833 A TW 101127833A TW 201407097 A TW201407097 A TW 201407097A
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- led
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- 238000003491 array Methods 0.000 claims abstract 2
- 238000009792 diffusion process Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
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
- G02B6/0066—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
- G02B6/0068—Arrangements of plural sources, e.g. multi-colour light sources
-
- 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
- G02F1/133603—Direct backlight with LEDs
-
- 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
- G02B6/0073—Light emitting diode [LED]
-
- 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
- G02B6/0096—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the lights guides being of the hollow type
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
- H01L33/00—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
- H01L33/48—Semiconductor devices having potential barriers specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages
- H01L33/58—Optical field-shaping elements
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)
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Planar Illumination Modules (AREA)
- Led Device Packages (AREA)
Abstract
一種直下式LED電視,其包括一LED模組,複數導光元件以及一顯示面板。該LED模組包括一電路板及複數LED以陣列排佈在該電路板上。該複數導光元件排佈在該電路板上,每個該導光元件包括一頂壁及一與該頂壁連接的中空收容部。每個該收容部收容一個該LED。每個該頂壁包括一靠近該收容部的入光面及一背離該收容部的出光面,該入光面具有一面對該LED的內凹透鏡面,該出光面具有一外凸透鏡面,該內凹透鏡面與該外凸透鏡面共同用於擴散該LED發出之光線。該顯示面板設置在該複數導光元件上方並接收透過該複數導光元件的LED光線。
Description
本發明涉及LED光源模組以及直下式LED電視。
發光二極體(LED)作為點光源已被廣泛使用。目前,LED的導光元件主要為一平面的擴散板,該擴散板內部具有微粒用於擴散光線。該擴散板與該LED需要維持一定的距離使光線熱量不會過度集中而産生熱點(Hot Spot)。然而,隨著薄型化電子産品,例如薄型化LED電視的需求,上述擴散板與LED之距離難以進一步限縮。
有鑒於此,有必要提供一種能克服上述問題的LED光源模組以及直下式LED電視。
一種LED光源模組,其包括一LED模組以及複數導光元件。該LED模組包括一電路板及複數LED以陣列排佈在該電路板上。該複數導光元件排佈在該電路板上。每個該導光元件包括一頂壁及一與該頂壁連接的中空收容部,每個該收容部收容一個該LED。每個該頂壁包括一靠近該收容部的入光面及一背離該收容部的出光面,該入光面具有一面對該LED的內凹透鏡面,該出光面具有一外凸透鏡面,該內凹透鏡面與該外凸透鏡面共同用於擴散該LED發出之光線。
一種直下式LED電視,其包括一LED模組,複數導光元件以及一顯示面板。該LED模組包括一電路板及複數LED以陣列排佈在該電路板上。該複數導光元件排佈在該電路板上。每個該導光元件包括一頂壁及一與該頂壁連接的中空收容部,每個該收容部收容一個該LED。每個該頂壁包括一靠近該收容部的入光面及一背離該收容部的出光面,該入光面具有一面對該LED的內凹透鏡面,該出光面具有一外凸透鏡面,該內凹透鏡面與該外凸透鏡面共同用於擴散該LED發出之光線。該顯示面板設置在該複數導光元件上方並接收透過該複數導光元件的LED光線。
相對於先前技術,本發明提供之導光元件面對LED的入光面具有內凹透鏡面,背離LED的出光面具有外凸透鏡面,該內凹透鏡面使LED光線先進行擴散,從而可以減輕或消除熱點現象,該外凸透鏡面作為網點進一步使LED光線擴散,提升近距離散射的效果。該LED光源模組及LED電視藉由陣列排佈的複數該導光元件避免使用擴散板,實現大型化且薄型化。
請一並參閱圖1及圖2,本發明實施例提供之LED導光元件100包括一頂壁10,一與該頂壁10連接的中空收容部20以及複數支柱30。
該收容部20具有周圍的側壁,該收容部20用於收容一個LED。本實施例中,該頂壁10為圓形,該收容部20為圓環形。在其他實施例中,該頂壁10及該收容部20可以為其他形狀,例如均可以為方形,僅需要該收容部20外形與該頂壁10外形相對應即可。
該複數支柱30形成於該收容部20遠離該頂壁10的一端的端部。該複數支柱30用於插入LED電路板中,以固定該導光元件100於該LED上方。本實施例中,該複數支柱30的數量為三個。
該頂壁10包括一靠近該收容部20的入光面12及一背離該收容部20的出光面14。該入光面12具有一面對LED的內凹透鏡面121,該出光面14具有一外凸透鏡面141。該內凹透鏡面121與該外凸透鏡面141對齊,且分別位於該入光面12的中心及該出光面14的中心。該內凹透鏡面121與該外凸透鏡面141可以均為球面或非球面形狀。
該導光元件100為一體成型結構。該導光元件100整體可以由一種透光材料製成。
該內凹透鏡面121使LED光線先進行擴散,從而使LED光線的熱量不會過度集中,即可以減輕或消除熱點現象,該外凸透鏡面141作為網點進一步使LED光線擴散,提升近距離散射的效果。
請參閱圖3,本發明實施例提供之LED光源模組200包括一LED模組210及複數導光元件100。該LED模組210包括一電路板240,以及複數LED230以陣列排佈於該電路板240。每個該LED230收容在一個該收容部20中。該導光元件100的支柱30插入該電路板240的定位孔241中,以固定該導光元件100於該LED230上方。
由於內凹透鏡面121的向內凹陷及其對光線的擴散作用,LED230與該導光元件100之間的距離可以縮小,同時可以減輕或消除熱點現象。由於具有外凸透鏡面141的進一步擴散,該LED光源模組200可以無需另外的擴散板。
請參閱圖4,本發明實施例提供之直下式LED電視300包括一顯示面板310設置在該LED光源模組200的導光元件100上方。該顯示面板310接收透過該複數導光元件的LED光線。該顯示面板310與該導光元件100之間可以增加其他的元件,但無需擴散板。
由於該LED光源模組200可以薄型化,該直下式LED電視300可以薄型化。
綜上所述,本發明確已符合發明專利之要件,遂依法提出專利申請。惟,以上所述者僅為本發明之較佳實施方式,自不能以此限制本案之申請專利範圍。舉凡熟悉本案技藝之人士爰依本發明之精神所作之等效修飾或變化,皆應涵蓋於以下申請專利範圍內。
100...導光元件
200...光源模組
300...直下式LED電視
10...頂壁
20...收容部
30...支柱
12...入光面
14...出光面
121...內凹透鏡面
141...外凸透鏡面
210...LED模組
230...LED
240...電路板
241...定位孔
310...顯示面板
圖1係本發明實施例提供之LED導光元件立體示意圖。
圖2係圖1的反面示意圖。
圖3係本發明實施例提供之LED光源模組剖示圖。
圖4係本發明實施例提供之直下式LED電視示意圖。
200...光源模組
300...直下式LED電視
310...顯示面板
Claims (8)
- 一種LED光源模組,其包括:
一LED模組,該LED模組包括一電路板及複數LED陣列排佈在該電路板上;以及
複數導光元件排佈在該電路板上,每個該導光元件包括一頂壁及一與該頂壁連接的中空收容部,每個該收容部收容一個該LED,每個該頂壁包括一靠近該收容部的入光面及一背離該收容部的出光面,該入光面具有一面對該LED的內凹透鏡面,該出光面具有一外凸透鏡面,該內凹透鏡面與該外凸透鏡面共同用於擴散該LED發出之光線。 - 如請求項1所述之LED光源模組,其中:每個該收容部連接該頂壁的周緣,且該收容部外形與該頂壁外形相對應。
- 如請求項1所述之LED光源模組,其中:該內凹透鏡面與該外凸透鏡面對齊,且該內凹透鏡面與該外凸透鏡面分別位於該入光面的中心及該出光面的中心。
- 如請求項1所述之LED光源模組,其中:該電路板包括複數定位孔,每個該導光元件進一步包括複數支柱,該複數支柱形成於該收容部遠離該頂壁的一端的端部,且插入該複數定位孔中。
- 一種直下式LED電視,其包括:
一LED模組,該LED模組包括一電路板及複數LED以陣列排佈在該電路板上;
複數導光元件排佈在該電路板上,每個該導光元件包括一頂壁及一與該頂壁連接的中空收容部,每個該收容部收容一個該LED,每個該頂壁包括一靠近該收容部的入光面及一背離該收容部的出光面,該入光面具有一面對該LED的內凹透鏡面,該出光面具有一外凸透鏡面,該內凹透鏡面與該外凸透鏡面共同用於擴散該LED發出之光線;以及
一顯示面板設置在該複數導光元件上方並接收透過該複數導光元件的LED光線。 - 如請求項5所述之直下式LED電視,其中:每個該收容部連接該頂壁的周緣,且該收容部外形與該頂壁外形相對應。
- 如請求項5所述之直下式LED電視,其中:該內凹透鏡面與該外凸透鏡面對齊,且該內凹透鏡面與該外凸透鏡面分別位於該入光面的中心及該出光面的中心。
- 如請求項5所述之直下式LED電視,其中:該電路板包括複數定位孔,每個該導光元件進一步包括複數支柱,該複數支柱形成於該收容部遠離該頂壁的一端的端部,且插入該複數定位孔中。
Priority Applications (2)
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TW101127833A TWI545295B (zh) | 2012-08-01 | 2012-08-01 | Led光源模組及直下式led電視 |
US13/711,656 US8919980B2 (en) | 2012-08-01 | 2012-12-12 | LED light guide, LED light source module and direct-type LED TV |
Applications Claiming Priority (1)
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TW101127833A TWI545295B (zh) | 2012-08-01 | 2012-08-01 | Led光源模組及直下式led電視 |
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TW201407097A true TW201407097A (zh) | 2014-02-16 |
TWI545295B TWI545295B (zh) | 2016-08-11 |
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TW101127833A TWI545295B (zh) | 2012-08-01 | 2012-08-01 | Led光源模組及直下式led電視 |
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TW (1) | TWI545295B (zh) |
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Publication number | Priority date | Publication date | Assignee | Title |
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EP3057082B1 (en) | 2015-02-15 | 2019-10-09 | Beijing Universal Lanbo Technology Co., Ltd. | Led display screen covers and led displays |
CN104680947A (zh) | 2015-02-15 | 2015-06-03 | 北京环宇蓝博科技有限公司 | Led屏幕消除莫尔条纹并提高填充系数的装置及方法 |
US10558081B2 (en) * | 2016-06-08 | 2020-02-11 | Sakai Display Products Corporation | Light reflection device and light source device |
US20230213715A1 (en) * | 2022-01-03 | 2023-07-06 | Apple Inc. | Technologies for Increased Volumetric and Functional Efficiencies of Optical Packages |
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TWI261654B (en) * | 2004-12-29 | 2006-09-11 | Ind Tech Res Inst | Lens and LED with uniform light emitted applying the lens |
US7918583B2 (en) * | 2006-08-16 | 2011-04-05 | Rpc Photonics, Inc. | Illumination devices |
KR101286705B1 (ko) * | 2006-10-31 | 2013-07-16 | 삼성디스플레이 주식회사 | 백라이트 광원 및 광원용 렌즈 그리고 이를 포함하는백라이트 어셈블리 |
JPWO2008069143A1 (ja) * | 2006-12-05 | 2010-03-18 | 株式会社ニコン | 照明光源及び画像投影装置 |
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2012
- 2012-08-01 TW TW101127833A patent/TWI545295B/zh not_active IP Right Cessation
- 2012-12-12 US US13/711,656 patent/US8919980B2/en not_active Expired - Fee Related
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Publication number | Publication date |
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US8919980B2 (en) | 2014-12-30 |
US20140036161A1 (en) | 2014-02-06 |
TWI545295B (zh) | 2016-08-11 |
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