WO2016176924A1 - 光源组件及背光模块 - Google Patents

光源组件及背光模块 Download PDF

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Publication number
WO2016176924A1
WO2016176924A1 PCT/CN2015/086667 CN2015086667W WO2016176924A1 WO 2016176924 A1 WO2016176924 A1 WO 2016176924A1 CN 2015086667 W CN2015086667 W CN 2015086667W WO 2016176924 A1 WO2016176924 A1 WO 2016176924A1
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WO
WIPO (PCT)
Prior art keywords
light source
arm
quantum
tube
substrate
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PCT/CN2015/086667
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English (en)
French (fr)
Inventor
周革革
陈仕祥
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武汉华星光电技术有限公司
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Application filed by 武汉华星光电技术有限公司 filed Critical 武汉华星光电技术有限公司
Priority to US14/778,244 priority Critical patent/US20170090093A1/en
Publication of WO2016176924A1 publication Critical patent/WO2016176924A1/zh

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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
    • 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
    • G02B6/0026—Wavelength selective element, sheet or layer, e.g. filter or grating
    • 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
    • G02B6/0015—Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it
    • G02B6/002—Means for improving the coupling-in of light from the light source into the light guide provided on the surface of the light guide or in the bulk of it by shaping at least a portion of the light guide, e.g. with collimating, focussing or diverging surfaces
    • 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
    • G02B6/0088—Positioning aspects of the light guide or other optical sheets in the package
    • 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
    • G02F1/133602—Direct backlight
    • G02F1/133603—Direct backlight with LEDs
    • 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
    • G02F1/133614—Illuminating devices using photoluminescence, e.g. phosphors illuminated by UV or blue light

Definitions

  • the invention belongs to the technical field of liquid crystal display, and in particular to a light source component and a backlight module with high color gamut.
  • liquid crystal displays have been widely used as display screens for electronic devices in various electronic products.
  • the demand for color sharpness displayed by electronic devices is increasing, which requires an increasingly high color gamut of liquid crystal displays as display screens for electronic devices.
  • existing liquid crystal displays include a relatively disposed liquid crystal panel and a backlight module that provides a display backlight to the liquid crystal panel.
  • a backlight module which is one of the most important components in a liquid crystal display
  • the color gamut of the display backlight provided to the liquid crystal panel directly determines the color gamut of the liquid crystal display.
  • quantum dots are usually used in the backlight module.
  • the quantum dots are encapsulated in a glass tube to form a quantum tube, and the light emitted by the light source in the backlight module passes.
  • the quantum tube is fragile, how to prevent the quantum tube from breaking while fixing the quantum tube is an urgent problem to be solved.
  • an object of the present invention is to provide a light source assembly including a substrate, a point light source spaced on the substrate, at least two brackets, and a quantum tube, the bracket being fixed to the The quantum tube is fixed in the holder on the substrate and adjacent to the point source.
  • the two brackets are respectively fixed at both ends of the substrate.
  • a central axis of the quantum tube is parallel to a line where the point source is located.
  • the bracket includes a base, first and second arms extending upward from opposite ends of the base, a first hook extending from the first arm toward the second arm, and the first hook a second hook extending from the two arms toward the first arm, wherein the base, the first arm, the second arm, the first hook, and the second hook form a tolerance
  • the cavity is placed in the receiving cavity.
  • bracket is made of rubber, plastic or metal shrapnel.
  • the quantum tube includes a glass tube and quantum dots sealed in the glass tube.
  • a prism structure is formed on a side of the glass tube facing away from the point source.
  • a prism film is attached to a side of the glass tube facing away from the point light source.
  • Another object of the present invention is to provide a backlight module including the above-described light source assembly.
  • Still another object of the present invention is another liquid crystal display comprising the above-described backlight module.
  • the invention has the beneficial effects that the invention uses at least two brackets to fix the quantum tube near the point light source, and since the bracket is made of a buffer material, the bracket can buffer the quantum tube when subjected to external impact or vibration, thereby avoiding The quantum tube is broken and damaged, which improves product reliability.
  • the prismatic structure or the attached prismatic film on the side of the quantum tube facing away from the point source can increase the brightness of the light entering the light guide.
  • FIG. 1 is a side view of a liquid crystal display according to an embodiment of the present invention.
  • FIG. 2 is a partial side view of a backlight module in accordance with an embodiment of the present invention.
  • FIG. 3 is a perspective view of a light source assembly in accordance with an embodiment of the present invention.
  • FIG. 4 is a perspective view of a bracket in accordance with an embodiment of the present invention.
  • Figure 5 is a side cross-sectional view of a quantum tube in accordance with an embodiment of the present invention.
  • Figure 6 is a side cross-sectional view of a quantum tube in accordance with another embodiment of the present invention.
  • Figure 7 is a side cross-sectional view of a quantum tube in accordance with yet another embodiment of the present invention.
  • FIG. 1 is a side view of a liquid crystal display according to an embodiment of the present invention.
  • a liquid crystal display includes a liquid crystal panel 100 and a backlight module 200 disposed opposite to each other, wherein the backlight module 200 provides a high color gamut display backlight to the liquid crystal panel 100 to enable the liquid crystal panel 100 to display images.
  • the present invention is directed to the backlight module 200. Therefore, in order to avoid redundancy, the specific structure of the liquid crystal panel 100 will not be described in detail herein. Those skilled in the art can refer to the liquid crystal disclosed in the prior art. The specific structure of the panel.
  • the backlight module 200 according to an embodiment of the present invention will be described in detail below.
  • 2 is a partial side view of a backlight module in accordance with an embodiment of the present invention.
  • 3 is a perspective schematic view of a light source assembly in accordance with an embodiment of the present invention.
  • 4 is a perspective view of a stent in accordance with an embodiment of the present invention.
  • a backlight module 200 includes a reflective sheet 210, a light guide plate 220, a plurality of optical films 230, a light source assembly 240, and a bezel 250.
  • the light guide plate 220 is disposed on the reflective sheet 210.
  • the light guide plate 220 is a wedge-shaped light guide plate, but the invention is not limited thereto.
  • the light guide plate 220 may also be a flat plate-shaped light guide plate.
  • the light guide plate 220 includes a flat body 221 and a wedge body 222 extending upward along one end of the flat body 221 .
  • the thicker end surface 2221 of the wedge body 222 is generally a light incident end surface, and the thin end surface of the wedge body 222 is smoothly engaged with one end of the flat body 221 .
  • the plastic frame 250 is disposed on the reflective sheet 210, and the plastic frame 250 is opposite to the light incident end surface 2221.
  • the light source assembly 240 includes a substrate 241, a point light source (eg, light emitting diode LED) 242 spaced apart on the substrate 241, two brackets 243, and a quantum tube 244.
  • Two brackets 243 are fixed on the substrate 241, and both of the brackets 243 are adjacent to the point light source 242, and the quantum tubes 244 are fixed in the two brackets 243.
  • the bracket 243 in the present invention is not limited to the two shown in FIG. 3, and may be, for example, three or more.
  • the light from the point source 242 passes through the quantum tube 244, exciting the quantum dots in the quantum tube 244 to produce light of a high color gamut.
  • the substrate 241 can be a printed circuit board PCB.
  • two brackets 243 are respectively fixed at both ends of the substrate 241.
  • the central axis O of the quantum tube 244 is parallel to the line O' where all the point sources 242 are located, that is, the line between the corresponding points of the two brackets 243. Parallel to the line O' where all point sources 242 are located.
  • the bracket 243 includes a base 2431, and a first arm 2432a and a second arm 2432b extending from the two ends of the base 2431 upward (or downward, that is, perpendicular to the plane of the base 2431), respectively, by the first arm.
  • the second hook 2433a extends toward the second arm 2432b and the second hook 2433b extends from the second arm 2432b toward the first arm 2432a. Further, there is a gap between the first hook 2433a and the second hook 2433b.
  • a receiving cavity 2434 is formed by the base 2431, the first arm 2432a, the second arm 2432b, the first hook 2433a and the second hook 2433b, and the quantum tube 244 is received in the receiving cavity 2434.
  • the bracket 243 may be made of rubber, plastic or metal shrapnel, but the present invention is not limited thereto.
  • the substrate 241 is disposed on the bezel 222 of the bezel 250 and the light guide plate 220, and the substrate 241 is adhered to the bezel 250 and the wedge 222 by the double-sided tape 260. So that the point light source 242 is located between the light incident end surface 2221 and the bezel 250, and the quantum tube 244 is located between the point light source 242 and the light incident end surface 2221.
  • the light that excites the quantum dots in the quantum tube 244 to generate a high color gamut can enter the light guide plate 220 through the light incident end surface 2221.
  • a plurality of optical films 230 are sequentially disposed on the flat plate body 221 of the light guide plate 220, and these optical film sheets 230 are fixed to the substrate 241 by the light-shielding double-sided tape 270.
  • these optical films 230 may include a brightness enhancement film, a diffusion film, etc., which are capable of improving the optical quality of light emitted from the top surface of the flat body 221, and in Fig. 2, three optical films are shown. Slice 230, but the invention is not limited thereto.
  • FIG. 5 is a side cross-sectional view of a quantum tube in accordance with an embodiment of the present invention.
  • a quantum tube 244 in accordance with an embodiment of the present invention includes a glass tube 2441 and a quantum dot 2442 sealed in the glass tube 2441.
  • Figure 6 is a side cross-sectional view of a quantum tube in accordance with another embodiment of the present invention.
  • a prism structure 2443 is formed on the side surface of the glass tube 2441 (the side surface faces away from the point light source 242).
  • the prism structure 2443 is a plurality of protrusions having a triangular shape in cross section formed directly on the side surface of the glass tube 2441, but the present invention is not limited thereto.
  • Figure 7 is a side cross-sectional view of a quantum tube in accordance with yet another embodiment of the present invention.
  • a prismatic film 2444 is attached to the side surface of the glass tube 2441 (the side surface faces away from the point light source 242).
  • the prism film 2444 includes a substrate 2444a and a projection 2444b having a triangular cross-sectional shape formed on the surface of the substrate 2444a, but the present invention is not limited thereto.
  • brackets are used to fix the quantum tube near the point source
  • the bracket since the bracket is made of a buffer material, the bracket can buffer the quantum tube when subjected to external impact or vibration, avoiding the quantum tube. Broken damage improves product reliability.
  • the prismatic structure or the attached prismatic film on the side of the quantum tube facing away from the point source can increase the brightness of the light entering the light guide.

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  • 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)
  • Liquid Crystal (AREA)

Abstract

一种光源组件（240），包括基板（241）、间隔排列在所述基板（241）上的点光源（242）、至少两个支架（243）以及量子管（244），所述支架（243）固定在所述基板（241）上且邻近于所述点光源（242），所述量子管（244）固定在所述支架（243）中。一种具有该光源组件（240）的背光模块（200），利用至少两个支架（243）将量子管（244）固定在点光源（242）附近的同时，由于支架（243）采用缓冲材料制成，所以在受到外界冲击或震动时支架能够给量子管（244）一定的缓冲，避免量子管（244）破碎损坏，提高了产品可靠性。此外，量子管（244）的背向点光源（242）的侧面上具有的棱镜结构（2443）或贴附的棱镜膜片（2444）能够提高进入导光板中的光线的亮度。

Description

光源组件及背光模块 技术领域
本发明属于液晶显示技术领域，具体地讲，涉及一种具有高色域的光源组件及背光模块。
背景技术
目前，液晶显示器作为电子设备的显示屏已经广泛的应用于各种电子产品中。市场对电子设备显示的色彩鲜明度的要求越来越高，这就需要作为电子设备的显示屏的液晶显示器的色域越来越高。
一般而言，现有的液晶显示器包括相对设置的液晶面板和向液晶面板提供显示背光的背光模块。作为液晶显示器中最重要的组成部件之一的背光模块，其向液晶面板提供的显示背光的色域直接决定了液晶显示器的色域。在现有技术中，为了提高背光模块提供的显示背光的色域，通常在背光模块中运用量子点，例如，将量子点封装于玻璃管中形成量子管，背光模块中的光源发出的光线通过量子管，激发量子管中的量子点，从而产生高色域的显示背光。但是，由于量子管易碎，如何在固定量子管的同时避免量子管破碎是一个亟需解决的问题。
发明内容
为了解决上述现有技术存在的问题，本发明的目的在于提供一种光源组件，包括基板、间隔排列在所述基板上的点光源、至少两个支架以及量子管，所述支架固定在所述基板上且邻近于所述点光源，所述量子管固定在所述支架中。
进一步地，所述两个支架分别固定在所述基板的两端。
进一步地，当所述量子管固定在所述支架中时，所述量子管的中心轴线平行于所述点光源所在的直线。
进一步地，所述支架包括底座、由所述底座两端分别向上延伸的第一臂和第二臂、由所述第一臂朝向所述第二臂延伸的第一卡钩以及由所述第二臂朝向所述第一臂延伸的第二卡钩，其中，由所述底座、所述第一臂、所述第二臂、所述第一卡钩以及所述第二卡钩合围形成容置腔，所述量子管容置于所述容置腔中。
进一步地，所述支架由橡胶、塑料或金属弹片制成。
进一步地，所述量子管包括玻璃管及密封于所述玻璃管中的量子点。
进一步地，所述玻璃管的背向所述点光源的侧面上形成棱镜结构。
进一步地，所述玻璃管的背向所述点光源的侧面贴附有棱镜膜片。
本发明的另一目的还在于提供一种背光模块，其包括上述的光源组件。
本发明的又一目的又在于一种液晶显示器，其包括上述的背光模块。
本发明的有益效果：本发明利用至少两个支架将量子管固定在点光源附近的同时，由于支架采用缓冲材料制成，所以在受到外界冲击或震动时支架能够给量子管一定的缓冲，避免量子管破碎损坏，提高了产品可靠性。此外，量子管的背向点光源的侧面上具有的棱镜结构或贴附的棱镜膜片能够提高进入导光板中的光线的亮度。
附图说明
通过结合附图进行的以下描述，本发明的实施例的上述和其它方面、特点和优点将变得更加清楚，附图中：
图1是根据本发明的实施例的液晶显示器的侧视图；
图2是根据本发明的实施例的背光模块的局部侧视图；
图3是根据本发明的实施例的光源组件的立体示意图；
图4是根据本发明的实施例的支架的立体图；
图5是根据本发明的实施例的量子管的侧面剖切图；
图6是根据本发明的另一实施例的量子管的侧面剖切图；
图7是根据本发明的又一实施例的量子管的侧面剖切图。
具体实施方式
以下，将参照附图来详细描述本发明的实施例。然而，可以以许多不同的形式来实施本发明，并且本发明不应该被解释为限制于这里阐述的具体实施例。相反，提供这些实施例是为了解释本发明的原理及其实际应用，从而使本领域的其他技术人员能够理解本发明的各种实施例和适合于特定预期应用的各种修改。在附图中，为了清楚器件，夸大了层和区域的厚度，相同的标号在整个说明书和附图中可用来表示相同的元件。
图1是根据本发明的实施例的液晶显示器的侧视图。
参照图1，根据本发明的实施例的液晶显示器包括相对设置的液晶面板100和背光模块200，其中，背光模块200提供高色域的显示背光给液晶面板100，以使该液晶面板100显示影像。在本实施例中，由于本发明的发明要点是针对背光模块200，所以为了避免赘述，液晶面板100的具体结构在此不再详细介绍，本领域的技术人员可参照现有技术中公开的液晶面板的具体结构。
以下将对根据本发明的实施例的背光模块200进行详细的描述。图2是根据本发明的实施例的背光模块的局部侧视图。图3是根据本发明的实施例的光源组件的立体示意图。图4是根据本发明的实施例的支架的立体图。
参照图2，根据本发明的实施例的背光模块200包括反射片210、导光板220、若干光学膜片230、光源组件240、胶框250。
导光板220设置于反射片210上。在本实施例中，导光板220为一楔形导光板，但本发明并不限制于此，例如导光板220也可为一平板状导光板。导光板220包括平板体221以及沿该平板体221一端向上延伸的楔形体222。该楔形体222较厚的端面2221通常为入光端面，该楔形体222较薄的端面与平板体221的一端平滑衔接。
胶框250设置于反射片210上，并且胶框250相对于入光端面2221。
参照图3，光源组件240包括基板241、间隔排列在基板241上的点光源(例如，发光二极管LED)242、两个支架243及量子管244。两个支架243固定在基板241上，并且这两个支架243都邻近于点光源242，而将量子管244固定在这两个支架243中。需要说明的是，本发明中的支架243并不以图3中所示的两个为限，例如也可为三个或更多个。这样，点光源242发出的光线通过量子管244，激发量子管244中的量子点而产生高色域的光线。
在本实施例中，基板241可为印刷电路板PCB。进一步地，两个支架243分别固定在基板241的两端。当量子管244固定在这两个支架243中时，量子管244的中心轴线O与所有点光源242所在的直线O’平行，也就是说，这两个支架243的对应点之间的连线与所有点光源242所在的直线O’平行。
参照图4，支架243包括底座2431、由底座2431两端分别向上(或向下，即垂直于底座2431所在平面的法线方向)延伸的第一臂2432a和第二臂2432b、由第一臂2432a朝向第二臂2432b延伸的第一卡钩2433a以及由第二臂2432b朝向第一臂2432a延伸的第二卡钩2433b。进一步地，第一卡钩2433a与第二卡钩2433b之间具有空隙。这里，由底座2431、第一臂2432a、第二臂2432b、第一卡钩2433a以及第二卡钩2433b合围形成一容置腔2434，量子管244容置于该容置腔2434中。
为了给量子管提供一定的缓冲性，避免在其受到外界冲击或震动时损坏，在本实施例中，可利用橡胶、塑料或金属弹片制成支架243，但本发明并不局限于此。
再次参照图2，在对光源组件240进行组装时，基板241设置在胶框250和导光板220的楔形体222上，并且基板241通过双面胶260与胶框250和楔形体222粘附固定，以使点光源242位于入光端面2221和胶框250之间，量子管244位于点光源242和入光端面2221之间。这样，激发量子管244中的量子点而产生高色域的光线可通过入光端面2221进入导光板220中。
若干光学膜片230依次设置在导光板220的平板体221上，并且这些光学膜片230通过遮光双面胶270固定在基板241上。在本实施例中，这些光学膜片230可包括增亮膜、扩散膜等，它们能够改善由平板体221的顶面出射的光线的光学品质，在图2中，示出了三张光学膜片230，但本发明并不以此为限。
图5是根据本发明的实施例的量子管的侧面剖切图。参照图5，根据本发明的实施例的量子管244包括玻璃管2441及密封于该玻璃管2441中的量子点2442。
图6是根据本发明的另一实施例的量子管的侧面剖切图。参照图6，与图5所示的量子管不同的是，在玻璃管2441的侧面(该侧面背向点光源242)上形成棱镜结构2443。这里，棱镜结构2443为若干直接形成在玻璃管2441的侧面上的截面形状呈三角形的凸起，但本发明并不限制于此。
图7是根据本发明的又一实施例的量子管的侧面剖切图。参照图7，与图5和图6所示的量子管不同的是，在玻璃管2441的侧面(该侧面背向点光源242)上贴附棱镜膜片2444。这里，棱镜膜片2444包括基片2444a及形成在基片2444a表面上的截面形状呈三角形的凸起2444b，但本发明并不限制于此。
综上所述，在利用至少两个支架将量子管固定在点光源附近的同时，由于支架采用缓冲材料制成，所以在受到外界冲击或震动时支架能够给量子管一定的缓冲，避免量子管破碎损坏，提高了产品可靠性。此外，量子管的背向点光源的侧面上具有的棱镜结构或贴附的棱镜膜片能够提高进入导光板中的光线的亮度。
虽然已经参照特定实施例示出并描述了本发明，但是本领域的技术人员将理解：在不脱离由权利要求及其等同物限定的本发明的精神和范围的情况下，可在此进行形式和细节上的各种变化。

Claims (19)

  1. 一种光源组件，包括基板及间隔排列在所述基板上的点光源，其中，所述光源组件还包括至少两个支架及量子管，所述两个支架分别固定在所述基板的两端，并且所述两个支架邻近于所述点光源，所述支架包括底座、由所述底座两端分别向上延伸的第一臂和第二臂、由所述第一臂朝向所述第二臂延伸的第一卡钩以及由所述第二臂朝向所述第一臂延伸的第二卡钩，其中，由所述底座、所述第一臂、所述第二臂、所述第一卡钩以及所述第二卡钩合围形成容置腔，所述量子管容置固定于所述容置腔中。
  2. 根据权利要求1所述的光源组件，其中，当所述量子管固定在所述支架中时，所述量子管的中心轴线平行于所述点光源所在的直线。
  3. 根据权利要求1所述的光源组件，其中，所述支架由橡胶、塑料或金属弹片制成。
  4. 根据权利要求1所述的光源组件，其中，所述量子管包括玻璃管及密封于所述玻璃管中的量子点。
  5. 根据权利要求4所述的光源组件，其中，所述玻璃管的背向所述点光源的侧面上形成棱镜结构或者贴附有棱镜膜片。
  6. 一种光源组件，包括基板及间隔排列在所述基板上的点光源，其中，所述光源组件还包括至少两个支架及量子管，所述支架固定在所述基板上且邻近于所述点光源，所述量子管固定在所述支架中。
  7. 根据权利要求6所述的光源组件，其中，所述两个支架分别固定在所述基板的两端。
  8. 根据权利要求7所述的光源组件，其中，当所述量子管固定在所述支架中时，所述量子管的中心轴线平行于所述点光源所在的直线。
  9. 根据权利要求6所述的光源组件，其中，所述支架包括底座、由所述底座两端分别向上延伸的第一臂和第二臂、由所述第一臂朝向所述第二臂延伸 的第一卡钩以及由所述第二臂朝向所述第一臂延伸的第二卡钩，其中，由所述底座、所述第一臂、所述第二臂、所述第一卡钩以及所述第二卡钩合围形成容置腔，所述量子管容置于所述容置腔中。
  10. 根据权利要求6所述的光源组件，其中，所述支架由橡胶、塑料或金属弹片制成。
  11. 根据权利要求6所述的光源组件，其中，所述量子管包括玻璃管及密封于所述玻璃管中的量子点。
  12. 根据权利要求11所述的光源组件，其中，所述玻璃管的背向所述点光源的侧面上形成棱镜结构或者贴附有棱镜膜片。
  13. 一种背光模块，包括导光板及设置于所述导光板的入光端面处的光源组件，其中，所述光源组件包括基板、间隔排列在所述基板上的点光源、至少两个支架及量子管，所述支架固定在所述基板上且邻近于所述点光源，所述量子管固定在所述支架中。
  14. 根据权利要求13所述的背光模块，其中，所述两个支架分别固定在所述基板的两端。
  15. 根据权利要求14所述的背光模块，其中，当所述量子管固定在所述支架中时，所述量子管的中心轴线平行于所述点光源所在的直线。
  16. 根据权利要求13所述的背光模块，其中，所述支架包括底座、由所述底座两端分别向上延伸的第一臂和第二臂、由所述第一臂朝向所述第二臂延伸的第一卡钩以及由所述第二臂朝向所述第一臂延伸的第二卡钩，其中，由所述底座、所述第一臂、所述第二臂、所述第一卡钩以及所述第二卡钩合围形成容置腔，所述量子管容置于所述容置腔中。
  17. 根据权利要求13所述的背光模块，其中，所述支架由橡胶、塑料或金属弹片制成。
  18. 根据权利要求13所述的背光模块，其中，所述量子管包括玻璃管及密封于所述玻璃管中的量子点。
  19. 根据权利要求18所述的背光模块，其中，所述玻璃管的背向所述点光源的侧面上形成棱镜结构或者贴附有棱镜膜片。
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