CN104849907A - 光扩散板支撑钉及背光模组 - Google Patents
光扩散板支撑钉及背光模组 Download PDFInfo
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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
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133608—Direct backlight including particular frames or supporting means
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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
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
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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
- G02F1/1336—Illuminating devices
- G02F1/133602—Direct backlight
- G02F1/133606—Direct backlight including a specially adapted diffusing, scattering or light controlling members
- G02F1/133607—Direct backlight including a specially adapted diffusing, scattering or light controlling members the light controlling member including light directing or refracting elements, e.g. prisms or lenses
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- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Planar Illumination Modules (AREA)
Abstract
一种光扩散板支撑钉,包含:水平底座、支撑柱主体及卡爪。所述水平底座界定出一个平面。所述支撑柱主体自所述水平底座沿第一方向向上延伸。所述卡爪延伸设置在所述水平底座下,用以卡合在直下式背光模组的背板上。所述第一方向与所述平面的夹角小于80度且不小于45度,当外力施加于所述光扩散板时,所述支撑柱主体能提供缓冲所述外力的作用。本发明也提供一种背光模组,包含背板、发光源、光扩散板及多个如上所述的光扩散板支撑钉。所述发光源设置在所述背板上。所述光扩散板支撑钉设置在所述背板与所述光扩散板之间,并卡合在所述背板上,用以支撑所述光扩散板。通过倾斜的支撑柱主体,可以有效地减少光扩散板因受到冲击而导致的损伤。
Description
技术领域
本发明涉及一种光扩散板支撑钉及背光模组,特别是涉及一种包含倾斜的支撑柱主体的光扩散板支撑钉,及包含所述光扩散板支撑钉的背光模组。
背景技术
液晶面板必须仰赖背光模组(backlightmodule,BLM)来提供一个辉度与均匀度皆充足的面光源。背光模组以光源放置的位置来分类,可分为侧光式(edge-lit)以及直下式(direct-lit)两种。现有的直下式背光模组包含背板、LED光源、光扩散板(diffuserplate)及光扩散板支撑钉。所述LED光源是设置在所述背板上,且位于模组的正后方直接向前照射至所述光扩散板;所述光扩散板支撑钉是设置在所述背板上,用以支撑所述光扩散板,并在光扩散板及背板间提供具有一定高度的混光腔,以获得出光均匀的平面背光源。
然而,当直下式背光模组中的光扩散板受到正向外力作用时,应力会集中在光扩散板支撑钉的顶端,容易使得光扩散板受到集中的应力冲击而损伤,进而在光扩散板支撑钉顶端的受冲击处产生缺陷。
发明内容
本发明的目的在于提供一种光扩散板支撑钉,能克服上述先前技术中的缺点。
于是,本发明光扩散板支撑钉适用于支撑直下式背光模组的光扩散板,其包含:水平底座、支撑柱主体及卡爪。所述水平底座界定出一个平面。所述支撑柱主体自所述水平底座沿第一方向向上延伸。所述卡爪延伸设置在所述水平底座下,用以卡合在所述直下式背光模组的背板上。所述第一方向与所述平面的夹角小于80度且不小于45度,当外力施加于所述光扩散板时,所述支撑柱主体能提供缓冲所述外力的作用。
较佳地,所述光扩散板支撑钉还包含延伸段,该延伸段自所述支撑柱主体沿第二方向延伸,所述第二方向平行所述平面。
较佳地,所述支撑柱主体是朝所述第二方向倾斜。
较佳地,所述光扩散板支撑钉的材料是选自于聚碳酸酯、压克力或其组合。
又,本发明背光模组包含背板、发光源、光扩散板及多个如上所述的光扩散板支撑钉。所述发光源设置在所述背板上。所述光扩散板支撑钉设置在所述背板与所述光扩散板之间,并卡合在所述背板上,用以支撑所述光扩散板。
较佳地,所述背光模组是直下式背光模组。
本发明的有益效果在于:通过倾斜的支撑柱主体,可以有效地减少光扩散板因受到冲击而导致的损伤。
附图说明
图1是本发明光扩散板支撑钉的较佳实施例的侧视示意图;及
图2是本发明的显示器的较佳实施例的剖面示意图。
具体实施方式
下面结合附图及实施例对本发明进行详细说明。
在本发明被详细描述前,应当注意在以下的说明内容中,类似的组件是以相同的编号来表示。
参阅图1,本发明光扩散板支撑钉1包含水平底座11、支撑柱主体12及卡爪13。所述水平底座11界定出一个平面。所述支撑柱主体12自所述水平底座11沿第一方向D1向上延伸。所述卡爪13延伸设置在所述水平底座11下。所述第一方向D1与所述平面的夹角θ小于80度且不小于45度。在本实施例中,所述夹角θ为75度。
较佳地,所述光扩散板支撑钉1还包含延伸段14,该延伸段14自所述支撑柱主体12沿第二方向D2延伸,所述第二方向D2平行所述平面。所述延伸段14有助于加强所述支撑柱主体12的支撑效果。
更佳地,所述支撑柱主体12是朝所述第二方向D2倾斜,以强化所述延伸段14的支撑效果。
较佳地,所述光扩散板支撑钉1的材料是选自于聚碳酸酯(PC)、压克力(PMMA)或其组合。在本实施例中,所述光扩散板支撑钉1的材料是透明的聚碳酸酯/压克力(PC/PMMA)复合材料。
参阅图2,本实施例的显示器包含背光模组2、光学膜3及显示屏4。所述背光模组2包含背盖21、发光源22、光扩散板23及多个如上所述的光扩散板支撑钉1。所述背盖21包括背板211及侧板212。所述背板211不限于平板式或弯曲式。在本实施例中,所述背板211为平板式的水平背板。所述发光源22包括发光二极管阵列且设置在所述背板211上。所述光扩散板23实质上平行于所述背板211。所述光扩散板支撑钉1,设置在所述背板211与所述光扩散板23之间,并卡合在所述背板211上,用以支撑所述光扩散板23。
在本实施例中,所述背光模组2是直下式背光模组。所述卡爪13是用以卡合在所述直下式背光模组的背板211上。所述水平底座11实质上平行于所述背板211。
所述背板211的材料不限于金属或塑料,例如SECC、SGCC镀锌钢材或聚碳酸酯(PC)、丙烯腈-丁二烯-苯乙烯共聚物(ABS)。在本实施例中,所述背板211为SECC镀锌钢板。
当正向外力施加于所述直下式背光模组的光扩散板23时,所述支撑柱主体12能使其与所述光扩散板23间的应力分散并被略为压缩,以提供缓冲所述外力的作用,进而减少光扩散板23受到的冲击损伤。
如果所述夹角θ不小于80度,所述支撑柱主体12无法有效分散所述应力,所述光扩散板23容易承受集中的应力而受损;如果所述夹角小于45度,所述支撑柱主体12难以维持支撑所述光扩散板23的作用,且容易阻碍所述发光源22照射至所述光扩散板23的路径,也需要较高的生产成本。
综上所述,本发明光扩散板支撑钉1包含与水平底座11的夹角θ小于80度且不小于45度的支撑柱主体12,能有效地减少所述光扩散板23因受到冲击而导致的损伤,所以确实能达成本发明的目的。
以上所述,仅为本发明的较佳实施例与具体例而已,当不能以此限定本发明实施的范围,即大凡依本发明权利要求及说明书内容所作的简单的等效变化与修饰,皆仍属本发明专利涵盖的范围内。
Claims (6)
1.一种光扩散板支撑钉,适用于支撑直下式背光模组的光扩散板,其包含:
水平底座,界定出一个平面;
支撑柱主体,自所述水平底座沿第一方向向上延伸;及
卡爪,延伸设置在所述水平底座下,用以卡合在所述直下式背光模组的背板上,
其特征在于:所述第一方向与所述平面的夹角小于80度且不小于45度,当外力施加于所述光扩散板时,所述支撑柱主体能提供缓冲所述外力的作用。
2.根据权利要求1所述的光扩散板支撑钉,其特征在于:所述光扩散板支撑钉还包含:
延伸段,自所述支撑柱主体沿第二方向延伸,所述第二方向平行所述平面。
3.根据权利要求2所述的光扩散板支撑钉,其特征在于:所述支撑柱主体是朝所述第二方向倾斜。
4.根据权利要求1所述的光扩散板支撑钉,其特征在于:所述光扩散板支撑钉的材料是选自于聚碳酸酯、压克力或其组合。
5.一种背光模组,其特征在于其包含:
背板;
发光源,设置在所述背板上;
光扩散板;及
多个根据权利要求1所述的光扩散板支撑钉,设置在所述背板与所述光扩散板之间,并卡合在所述背板上,用以支撑所述光扩散板。
6.根据权利要求5所述的背光模组,其特征在于:所述背光模组是直下式背光模组。
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Cited By (1)
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TWI783562B (zh) * | 2021-07-07 | 2022-11-11 | 香港商冠捷投資有限公司 | 直下式背光模組 |
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CN1959492A (zh) * | 2005-11-04 | 2007-05-09 | 鸿富锦精密工业(深圳)有限公司 | 直下式背光模块 |
CN101187758A (zh) * | 2006-11-20 | 2008-05-28 | 三星电子株式会社 | 液晶显示设备 |
CN201373934Y (zh) * | 2009-03-19 | 2009-12-30 | 华映视讯(吴江)有限公司 | 光学膜片支撑架及其支撑结构 |
KR20120030909A (ko) * | 2010-09-20 | 2012-03-29 | 엘지디스플레이 주식회사 | 백라이트 유닛 및 이를 구비한 액정표시장치 |
CN202432456U (zh) * | 2012-02-03 | 2012-09-12 | 广州创维平面显示科技有限公司 | 扩散板支架及直下式背光模组 |
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- 2014-02-18 CN CN201410053288.9A patent/CN104849907A/zh active Pending
Patent Citations (6)
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CN1567059A (zh) * | 2003-07-09 | 2005-01-19 | 友达光电股份有限公司 | 背光模块 |
CN1959492A (zh) * | 2005-11-04 | 2007-05-09 | 鸿富锦精密工业(深圳)有限公司 | 直下式背光模块 |
CN101187758A (zh) * | 2006-11-20 | 2008-05-28 | 三星电子株式会社 | 液晶显示设备 |
CN201373934Y (zh) * | 2009-03-19 | 2009-12-30 | 华映视讯(吴江)有限公司 | 光学膜片支撑架及其支撑结构 |
KR20120030909A (ko) * | 2010-09-20 | 2012-03-29 | 엘지디스플레이 주식회사 | 백라이트 유닛 및 이를 구비한 액정표시장치 |
CN202432456U (zh) * | 2012-02-03 | 2012-09-12 | 广州创维平面显示科技有限公司 | 扩散板支架及直下式背光模组 |
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TWI783562B (zh) * | 2021-07-07 | 2022-11-11 | 香港商冠捷投資有限公司 | 直下式背光模組 |
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