WO2015032175A1 - 背光模组 - Google Patents

背光模组 Download PDF

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Publication number
WO2015032175A1
WO2015032175A1 PCT/CN2014/070831 CN2014070831W WO2015032175A1 WO 2015032175 A1 WO2015032175 A1 WO 2015032175A1 CN 2014070831 W CN2014070831 W CN 2014070831W WO 2015032175 A1 WO2015032175 A1 WO 2015032175A1
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WO
WIPO (PCT)
Prior art keywords
light bar
fixing member
guide plate
groove
backlight module
Prior art date
Application number
PCT/CN2014/070831
Other languages
English (en)
French (fr)
Inventor
杨敏娜
吴盛圣
李健林
Original Assignee
深圳Tcl新技术有限公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 深圳Tcl新技术有限公司 filed Critical 深圳Tcl新技术有限公司
Priority to EP14841746.2A priority Critical patent/EP3045964B1/en
Priority to US14/785,683 priority patent/US20160091657A1/en
Publication of WO2015032175A1 publication Critical patent/WO2015032175A1/zh

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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
    • G02B6/0081—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
    • 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
    • G02F1/133615—Edge-illuminating devices, i.e. illuminating from the side
    • 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
    • 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
    • G02B6/0028—Light guide, e.g. taper
    • 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
    • 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
    • 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
    • G02B6/0016—Grooves, prisms, gratings, scattering particles or rough 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
    • G02B6/0066—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
    • 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
    • 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
    • G02F2202/00—Materials and properties
    • G02F2202/36—Micro- or nanomaterials

Definitions

  • the present invention relates to the field of liquid crystal display technologies, and in particular, to a backlight module.
  • a white LED is usually used as a backlight, and a backlight of the liquid crystal is realized by a reasonable combination of the light guide plate and the optical film.
  • the current solutions for achieving white light source, high color gamut, and high color saturation in backlights are: using ultraviolet LEDs with RGB phosphors; Use blue LED with red and green phosphor; use blue LED plus green LED plus red LED. These methods can improve the color gamut, but it is difficult to implement and costly. Therefore, quantum dots (Quantum Dot, QD) materials are used in backlight modules. High-spectrum light sources (such as blue LEDs) are used to replace traditional white LED light sources.
  • Quantum dot materials can be excited to generate spectra of different wavelengths under the illumination of high-frequency light sources.
  • the size of the quantum dot material can adjust the color of the synthesized light to achieve the backlight requirement of the high color gamut liquid crystal display. How to firmly fix the quantum dot material in the backlight module is a problem that needs to be solved at present.
  • the main object of the present invention is to provide a backlight module capable of firmly fixing a quantum dot material in a backlight module.
  • the invention provides a backlight module, comprising a light bar and a light guide plate, further comprising a quantum dot glass tube and a fixing member, wherein the fixing member is a hollow structure, and the quantum dot glass tube is placed in a cavity of the fixing member
  • the fixing member is disposed between the light bar and the light guide plate, a side wall of the fixing member abuts the frame of the light bar, and the other side wall of the fixing member and the light guide plate Engage.
  • the fixing member is disposed on a side wall of the light bar with a plurality of first grooves arranged in sequence, and the shape of the first groove is adapted to the shape of the LED lamp in the light bar. After the frame of the first groove abuts the frame of the light bar, an LED lamp is correspondingly disposed in one of the first grooves.
  • the fixing member is provided with a second groove facing a side wall of the light bar, the shape of the second groove is adapted to the shape of the light bar, and the frame of the second groove is After the light bar frame is abutted, the light bar is received in the second groove.
  • the fixing member is respectively provided with a plurality of bosses at four corners or four edges of a side wall of the light bar, the boss height is greater than the thickness of the light bar, the boss Abut the light bar border.
  • the thickness of the light guide plate decreases in a direction away from the fixing member.
  • the invention also provides a backlight module, comprising a light bar and a light guide plate, further comprising a quantum dot glass tube and a fixing member, wherein the fixing member is a hollow structure, and the quantum dot glass tube is placed in a cavity of the fixing member
  • the fixing member is disposed between the light bar and the light guide plate, a side wall of the fixing member abuts the frame of the light bar, and the other side wall of the fixing member and the light guide
  • the fixing member is disposed with a card slot toward a side wall of the light guide plate, the card slot width is consistent with the thickness of the edge of the light guide plate, and the edge of the light guide plate is engaged in the card slot.
  • the opposite side walls of the card slot respectively extend toward the slot of the card slot cavity, and the edge of the light guide plate is disposed with a guide slot corresponding to the position of the positioning rib, and the positioning rib is
  • the rail slots are adapted.
  • the thickness of the light guide plate decreases in a direction away from the fixing member.
  • the fixing member is disposed on a side wall of the light bar with a plurality of first grooves arranged in sequence, and the shape of the first groove is adapted to the shape of the LED lamp in the light bar. After the frame of the first groove abuts the frame of the light bar, an LED lamp is correspondingly disposed in one of the first grooves.
  • the fixing member is provided with a second groove facing a side wall of the light bar, the shape of the second groove is adapted to the shape of the light bar, and the frame of the second groove is After the light bar frame is abutted, the light bar is received in the second groove.
  • the fixing member is respectively provided with a plurality of bosses at four corners or four edges of a side wall of the light bar, the boss height is greater than the thickness of the light bar, the boss Abut the light bar border.
  • the invention also provides a backlight module, comprising a light bar and a light guide plate, further comprising a quantum dot optical film, wherein the quantum dot optical film is disposed between the light bar and the light guide plate, and the light guide plate faces A third groove is formed on a sidewall of the quantum dot optical film, and the quantum dot optical film is attached to the edge of the third groove.
  • the bottom surface of the third groove is provided with a plurality of pleats.
  • the thickness of the light guide plate decreases in a direction away from the quantum dot optical film.
  • the third groove is a plurality, and each of the third grooves corresponds to one LED lamp.
  • the third groove is one, and the third groove corresponds to the entire light bar.
  • the invention adopts a fixing member to place the quantum dot glass tube, so that the light bar, the light guide plate and the quantum dot glass tube maintain a proper spacing, and can function as a fixed light bar and a light guide plate.
  • FIG. 1 is an exploded perspective view of a light bar, a light guide plate, a quantum dot glass tube, and a fixing member in a backlight module according to a first embodiment of the present invention
  • FIG. 2 is a schematic structural view of a fixing member in a backlight module according to a first embodiment of the present invention
  • FIG. 3 is a schematic structural view of a fixing member provided with a first recess in a backlight module according to a first embodiment of the present invention
  • FIG. 4 is a schematic structural view of a fixing member provided with a second recess in a backlight module according to a first embodiment of the present invention
  • FIG. 5 is a schematic structural view of a fixing member provided with a bump in a backlight module according to a first embodiment of the present invention
  • FIG. 6 is a schematic structural view of a light guide plate provided with a guide groove in a backlight module according to a first embodiment of the present invention
  • FIG. 7 is a schematic structural view of a fixing member provided with a positioning rib in a backlight module according to a first embodiment of the present invention
  • FIG. 8 is a schematic structural view of a wedge-shaped light guide plate in a backlight module according to a first embodiment of the present invention
  • FIG. 9 is a schematic structural view of a backlight module according to a second embodiment of the present invention.
  • FIG. 10 is a schematic structural view of a light guide plate provided with a third recess in a backlight module according to a second embodiment of the present invention.
  • FIG. 11 is a schematic structural view of a light guide plate provided with a wrinkle surface in a backlight module according to a second embodiment of the present invention.
  • FIG. 1 is an exploded perspective view of a light bar, a light guide plate, a quantum dot glass tube and a fixing member in a backlight module according to a first embodiment of the present invention
  • FIG. 2 is a backlight mode according to a first embodiment of the present invention. Schematic diagram of the structure of the fixture in the group.
  • the backlight module provided in the embodiment includes a light bar 10, a light guide plate 20, a quantum dot glass tube 30 and a fixing member 40.
  • the light bar 10 can adopt a high frequency LED light source, and the quantum dot glass tube 30 is used to place the quantum dot material.
  • the quantum dot glass tube 30 can be a rectangular parallelepiped glass tube, and the quantum dot material in the quantum dot glass tube 30 is irradiated by the high frequency LED light source to excite the quantum dot material to generate different color spectrums, thereby generating the backlight module.
  • White backlight is a rectangular parallelepiped glass tube, and the quantum dot material in the quantum dot glass tube 30 is irradiated by the high frequency LED light source to excite the quantum dot material to generate different color spectrums, thereby generating the backlight module.
  • the fixing member 40 is used to place the quantum dot glass tube 30, and can function to fix the light bar 10 and the light guide plate 20.
  • the specific structure is as follows:
  • the fixing member 40 is a hollow structure, and the quantum dot glass tube 30 is placed in the cavity of the fixing member 40.
  • the fixing member 40 is disposed between the light bar 10 and the light guide plate 20, and a side wall of the fixing member 40 and the frame of the light bar 10 Abutting, the other side wall of the fixing member 40 is engaged with the light guide plate 20.
  • the fixing member 40 is disposed on a side wall of the light guide plate 20 with a card slot 50.
  • the width of the card slot 50 is the same as the thickness of the edge of the light guide plate 20, and the edge of the light guide plate 20 can be engaged in the card slot 50, thereby effectively preventing the light guide plate 20 from being effectively prevented.
  • the impact damages the quantum dot glass tube 30.
  • FIG. 3 is a schematic structural view of a fixing member provided with a first groove in a backlight module according to a first embodiment of the present invention.
  • the fixing member 40 is disposed on a side wall of the light bar 10 with a plurality of first grooves 61 arranged in sequence, and the shape of the first groove 61 is adapted to the shape of the LED lamp in the light bar 10, the first in this embodiment
  • the groove 61 is rectangular. After the frame of the first groove 61 abuts the frame of the light bar 10, an LED lamp is correspondingly received in a first groove 61.
  • the depth of the first groove 61 is slightly larger than the height of the LED lamp of the light bar 10, so that there is a suitable gap between the LED lamp housed in the first groove 61 and the bottom of the first groove 61.
  • the light guide plate 20 can be effectively prevented from being thermally expanded to resist damage to the LED lamp.
  • FIG. 4 is a schematic structural view of a fixing member provided with a second recess in a backlight module according to a first embodiment of the present invention.
  • the difference between the embodiment and the embodiment shown in FIG. 3 is that the plurality of first grooves in FIG. 3 are communicated to form a second groove 62 in the embodiment, and the shape of the second groove 62 and the entire lamp.
  • the shape of the strip 10 is adapted, and the second recess 62 of the present embodiment is elongated. After the frame of the second groove 62 abuts the frame of the light bar 10, the entire light bar 10 is received in the second groove 62.
  • the depth of the second groove 62 is slightly larger than the thickness of the light bar 10, so that a suitable gap exists between the light bar 10 accommodated in the second groove 62 and the bottom of the second groove 62, and the light guide plate 20 can be effectively avoided. It is heated to expand and damage the LED lamp.
  • FIG. 5 is a schematic structural view of a fixing member 40 provided with a bump in a backlight module according to a first embodiment of the present invention.
  • the first groove in the embodiment shown in FIG. 3 or the second groove in the embodiment shown in FIG. 4 may be changed into a boss 63, and the plurality of bosses 63 may be respectively disposed on the fixing member.
  • the boss 63 may be a rectangular parallelepiped, a cube, a cylinder, a prism, etc., the height of the boss 63 is greater than the thickness of the light bar 10, when the boss 63 is brought When the light bar 10 is connected to the frame, a gap is left between the light bar 10 and the fixing member 40, and the light guide plate 20 can be effectively prevented from being thermally expanded to damage the LED lamp.
  • the boss 63 can also be directly disposed on the frame of the first groove in the embodiment shown in FIG. 3, or disposed on the frame of the second groove in the embodiment shown in FIG. .
  • FIG. 6 is a schematic structural view of a light guide plate provided with a guide groove in a backlight module according to a first embodiment of the present invention
  • FIG. 7 is a positioning rib provided in a backlight module according to a first embodiment of the present invention
  • the difference between the embodiment and the embodiment shown in FIG. 2 is that the positioning ribs 71 extend in the direction of the opposite side walls of the card slot 50 toward the cavity of the card slot 50, and the edge of the light guide plate 20 corresponds to the position of the positioning rib 71.
  • the rail groove 72 is disposed, and the positioning rib 71 is matched with the rail groove 72, and slides in from the side opening of the rail groove 72 to realize the engagement between the positioning rib 71 and the rail groove 72, which is convenient for fastening between the light guide plate 20 and the fixing member 40. connection.
  • FIG. 8 is a schematic structural view of a wedge-shaped light guide plate in a backlight module according to a first embodiment of the present invention.
  • the thickness of the light guide plate 20 in this embodiment is reduced in a direction away from the fixing member 40 to form a wedge shape, which is advantageous for reducing the thickness of the light guide plate 20 and thereby reducing the weight of the entire backlight module.
  • FIG. 9 is a schematic structural view of a backlight module according to a second embodiment of the present invention
  • FIG. 10 is a light guide plate 20 provided with a third recess 90 in a backlight module according to a second embodiment of the present invention; Schematic.
  • the backlight module includes a quantum dot optical film 80 and a quantum dot optical film in addition to the light bar 10 and the light guide plate 20 .
  • the sheet 80 is formed by processing a quantum dot material in an optical film, and the quantum dot optical film 80 is disposed between the light bar 10 and the light guide plate 20, and the light guide plate 20 is opened on a side wall of the quantum dot optical film 80.
  • the third recess 90, the quantum dot optical film 80 is attached to the edge of the third recess 90, only a narrow one is needed, which does not affect the output of the light, and is also beneficial for reducing the backlight module. Width to achieve a narrow border LCD display.
  • the shape and number of the third recesses 90 can be referred to as a plurality of first recesses in the embodiment shown in FIG. 3, each of which corresponds to one LED lamp; or reference to the embodiment shown in FIG.
  • the second groove, designed as one, corresponds to the entire light bar.
  • the thickness of the light guide plate 20 can also be reduced in a direction away from the quantum dot optical film 80, that is, a wedge shape.
  • FIG. 11 is a schematic structural view of a light guide plate 20 provided with a wrinkle surface in a backlight module according to a second embodiment of the present invention.
  • the difference between this embodiment and the embodiment shown in FIG. 10 is that the bottom surface of the third groove 90 is provided with a plurality of pleat surfaces 91, which is advantageous for improving the uniformity of light.

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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)
  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Non-Portable Lighting Devices Or Systems Thereof (AREA)

Abstract

一种背光模组，包括灯条（10）、导光板（20）、量子点玻璃管（30）和固定件（40）。固定件（40）为中空结构，量子点玻璃管（30）放置于固定件（40）的腔体中，固定件（40）设置于灯条（10）与导光板（20）之间，固定件（40）的一侧壁与灯条（10）的边框抵接，固定件（40）的另一侧壁与导光板（20）卡合。采用固定件（40）来放置量子点玻璃管（30），使灯条（10）、导光板（20）、量子点玻璃管（30）保持合适的间距，并能起到固定灯条（10）和导光板（20）的作用。

Description

背光模组
技术领域
　　　本发明涉及液晶显示技术领域，特别涉及背光模组。　　　
背景技术
　　　在现有的液晶显示器中，通常采用白光LED作为背光源，通过导光板和光学膜片的合理搭配实现液晶所需背光。随着人们对高色域、高色彩饱和度、节能灯的要求越来越高，目前背光中实现白光光源、高色域、高色彩饱和度的方案有：利用紫外LED配合RGB荧光粉实现；利用蓝光LED配合红绿荧光粉；利用蓝光LED加绿光LED加红光LED等。这些方式都可以提高色域，但是实施起来困难，并且成本较高。因此，量子点（Quantum Dot，QD）材料被应用于背光模组中，采用高频谱光源（例如蓝光LED）取代传统白光LED光源，量子点材料在高频光源的照射下，可被激发产生不同波长的光谱，通过调整量子点材料的尺寸大小，即可调节合成光的颜色，实现高色域液晶显示器的背光要求。如何将量子点材料牢固的固定在背光模组中，是目前需要解决的问题。　　　
发明内容
　　　本发明的主要目的为提供一种背光模组，能将量子点材料牢固的固定在背光模组中。
　　　本发明提出一种背光模组，包括灯条与导光板，还包括量子点玻璃管和固定件，所述固定件为中空结构，所述量子点玻璃管放置于所述固定件的腔体中，所述固定件设置于所述灯条与导光板之间，所述固定件的一侧壁与所述灯条的边框抵接，所述固定件的另一侧壁与所述导光板卡合。
　　　优选地，所述固定件朝向所述灯条的一侧壁设置有依次排列的多个第一凹槽，所述第一凹槽的形状与所述灯条中的LED灯形状适配，所述第一凹槽的边框抵接所述灯条边框后，一个LED灯对应容置于一个所述第一凹槽中。
　　　优选地，所述固定件朝向所述灯条的一侧壁设置有一个第二凹槽，所述第二凹槽的形状与所述灯条的形状适配，所述第二凹槽的边框抵接所述灯条边框后，所述灯条容置于所述第二凹槽中。
　　　优选地，所述固定件朝向所述灯条的一侧壁的四个角上或四个边缘处分别设置有多个凸台，所述凸台高度大于所述灯条厚度，所述凸台抵接所述灯条边框。
　　　优选地，所述导光板的厚度沿远离所述固定件的方向减小。
　　　本发明还提出一种背光模组，包括灯条与导光板，还包括量子点玻璃管和固定件，所述固定件为中空结构，所述量子点玻璃管放置于所述固定件的腔体中，所述固定件设置于所述灯条与导光板之间，所述固定件的一侧壁与所述灯条的边框抵接，所述固定件的另一侧壁与所述导光板卡合；所述固定件朝向所述导光板的一侧壁设置有卡槽，所述卡槽宽度与所述导光板边缘厚度一致，所述导光板边缘卡合于所述卡槽中。
　　　优选地，所述卡槽的相对两侧壁分别朝向所述卡槽腔体的方向延伸出定位筋，所述导光板边缘对应于所述定位筋的位置设置有导轨槽，所述定位筋与所述导轨槽适配。
　　　优选地，所述导光板的厚度沿远离所述固定件的方向减小。
　　　优选地，所述固定件朝向所述灯条的一侧壁设置有依次排列的多个第一凹槽，所述第一凹槽的形状与所述灯条中的LED灯形状适配，所述第一凹槽的边框抵接所述灯条边框后，一个LED灯对应容置于一个所述第一凹槽中。
　　　优选地，所述固定件朝向所述灯条的一侧壁设置有一个第二凹槽，所述第二凹槽的形状与所述灯条的形状适配，所述第二凹槽的边框抵接所述灯条边框后，所述灯条容置于所述第二凹槽中。
　　　优选地，所述固定件朝向所述灯条的一侧壁的四个角上或四个边缘处分别设置有多个凸台，所述凸台高度大于所述灯条厚度，所述凸台抵接所述灯条边框。
　　　本发明还提出一种背光模组，包括灯条与导光板，还包括量子点光学膜片，所述量子点光学膜片设置于所述灯条与导光板之间，所述导光板朝向所述量子点光学膜片的一侧壁上开有第三凹槽，所述量子点光学膜片贴附在所述第三凹槽的边缘上。
　　　优选地，所述第三凹槽的底面设置有多个褶皱。
　　　优选地，所述导光板的厚度沿远离所述量子点光学膜片的方向减小。
　　　优选地，所述第三凹槽为多个，每一个所述第三凹槽对应于一个LED灯。
　　　优选地，所述第三凹槽为一个，所述第三凹槽对应于整条所述灯条。　　　　　
　　　本发明采用了固定件来放置量子点玻璃管，使灯条、导光板、量子点玻璃管保持合适的间距，并能起到固定灯条和导光板的作用。　　　
附图说明
　　　图1为本发明第一实施例的背光模组中灯条、导光板、量子点玻璃管和固定件的分解示意图；
　　　图2为本发明第一实施例的背光模组中固定件的结构示意图；
　　　图3为本发明第一实施例的背光模组中设置有第一凹槽的固定件的结构示意图；
　　　图4为本发明第一实施例的背光模组中设置有第二凹槽的固定件的结构示意图；
　　　图5为本发明第一实施例的背光模组中设置有凸块的固定件的结构示意图；
　　　图6为本发明第一实施例的背光模组中设置有导轨槽的导光板的结构示意图；
　　　图7为本发明第一实施例的背光模组中设置有定位筋的固定件的结构示意图；
　　　图8为本发明第一实施例的背光模组中楔形导光板的结构示意图；
　　　图9为本发明第二实施例的背光模组的结构示意图；
　　　图10为本发明第二实施例的背光模组中设置有第三凹槽的导光板的结构示意图；
　　　图11为本发明第二实施例的背光模组中设置有褶皱面的导光板的结构示意图。　　　
　　　本发明目的的实现、功能特点及优点将结合实施例，参照附图做进一步说明。　　　
具体实施方式
　　　应当理解，此处所描述的具体实施例仅仅用以解释本发明，并不用于限定本发明。
　　　参照图1和图2，图1为本发明第一实施例的背光模组中灯条、导光板、量子点玻璃管和固定件的分解示意图，图2为本发明第一实施例的背光模组中固定件的结构示意图。
　　　实施例提出的背光模组包括灯条10、导光板20、量子点玻璃管30和固定件40，其中，灯条10可采用高频LED光源，量子点玻璃管30是将量子点材料放置于玻璃管中，量子点玻璃管30可以为长方体状玻璃管，通过高频LED光源照射量子点玻璃管30中的量子点材料，激发量子点材料产生不同色彩的光谱，从而产生背光模组所需的白色背光源。
　　　为了使灯条10、导光板20、量子点玻璃管30保持合适的间距，本实施例采用了固定件40来放置量子点玻璃管30，并能起到固定灯条10和导光板20的作用。具体结构如下：
　　　固定件40为中空结构，量子点玻璃管30放置于固定件40的腔体中，固定件40设置于灯条10与导光板20之间，固定件40的一侧壁与灯条10的边框抵接，固定件40的另一侧壁与导光板20卡合。其中，固定件40朝向导光板20的一侧壁设置有卡槽50，卡槽50宽度与导光板20边缘厚度一致，可将导光板20边缘卡合于卡槽50中，有效防止导光板20撞击损坏量子点玻璃管30。
　　　参照图3，图3为本发明第一实施例的背光模组中设置有第一凹槽的固定件的结构示意图。固定件40朝向灯条10的一侧壁设置有依次排列的多个第一凹槽61，第一凹槽61的形状与灯条10中的LED灯形状适配，本实施例中的第一凹槽61为长方形。第一凹槽61的边框抵接灯条10边框后，一个LED灯对应容置于一个第一凹槽61中。本实施例中，第一凹槽61的深度略大于灯条10的LED灯的高度，使容置于第一凹槽61中的LED灯与第一凹槽61底部之间存在合适的空隙，可有效避免导光板20受热膨胀而抵压损坏LED灯。
　　　参照图4，图4为本发明第一实施例的背光模组中设置有第二凹槽的固定件的结构示意图。本实施例与图3所示实施例的区别在于，将图3中的多个第一凹槽连通，构成本实施例中的一个第二凹槽62，第二凹槽62的形状与整个灯条10的形状适配，本实施例的第二凹槽62为长条形。第二凹槽62的边框抵接灯条10边框后，整个灯条10容置于第二凹槽62中。第二凹槽62的深度略大于灯条10的厚度，使容置于第二凹槽62中的灯条10与第二凹槽62底部之间存在合适的空隙，同样可有效避免导光板20受热膨胀而抵压损坏LED灯。
　　　参照图5，图5为本发明第一实施例的背光模组中设置有凸块的固定件40的结构示意图。为了改善散热性问题，可将图3所示实施例中的第一凹槽或图4所示实施例中的第二凹槽改为凸台63，将多个凸台63分别设置在固定件40朝向灯条10的一侧壁的四个角上或四个边缘处，凸台63可为长方体、正方体、圆柱体、棱柱等，凸台63高度大于灯条10厚度，当凸台63抵接灯条10边框时，灯条10与固定件40之间留有间隙，同样可有效避免导光板20受热膨胀而抵压损坏LED灯。此外，凸台63还可直接设置在图3所示实施例中的第一凹槽的边框上，或设置在图4所示实施例中的第二凹槽的边框上，有利于LED等散热。
　　　参照图6和图7，图6为本发明第一实施例的背光模组中设置有导轨槽的导光板的结构示意图，图7为本发明第一实施例的背光模组中设置有定位筋的固定件的结构示意图。本实施例与图2所示实施例的区别在于，在卡槽50的相对两侧壁分别朝向卡槽50腔体的方向延伸出定位筋71，在导光板20边缘对应于定位筋71的位置设置有导轨槽72，定位筋71与导轨槽72适配，从导轨槽72侧面开口滑入，实现定位筋71与导轨槽72卡合，有利于紧固导光板20与固定件40之间的连接。
　　　参照图8，图8为本发明第一实施例的背光模组中楔形导光板的结构示意图。本实施例中的导光板20的厚度沿远离固定件40的方向减小，形成楔形，有利于减少导光板20的厚度，进而降低整个背光模组的重量。　　　
　　　参照图9和图10，图9为本发明第二实施例的背光模组的结构示意图，图10为本发明第二实施例的背光模组中设置有第三凹槽90的导光板20的结构示意图。
　　　本实施例提出的背光模组与图1至图8所示实施例的区别在于，背光模组除了包括灯条10和导光板20之外，还包括量子点光学膜片80，量子点光学膜片80是将量子点材料加工于光学膜片中，将量子点光学膜片80设置于灯条10与导光板20之间，导光板20朝向量子点光学膜片80的一侧壁上开有第三凹槽90，量子点光学膜片80贴附在第三凹槽90的边缘上，只需很窄的一条即可，不会影响光的输出，同时也有利于减小背光模组的宽度，实现窄边框液晶显示器。其中，第三凹槽90的形状和数量可以参考图3所示实施例中的第一凹槽，设计为多个，每一个都对应于一个LED灯；或参考图4所示实施例中的第二凹槽，设计为一个，对应于整条灯条。此外，为减轻整个背光模组的重量，也可将导光板20的厚度沿远离量子点光学膜片80的方向减小，即设计为楔形。
　　　参照图11，图11为本发明第二实施例的背光模组中设置有褶皱面的导光板20的结构示意图。本实施例与图10所示实施例的区别在于，第三凹槽90的底面设置有多个褶皱面91，有利于提高光的均匀性。　　　
　　　以上所述仅为本发明的优选实施例，并非因此限制本发明的专利范围，凡是利用本发明说明书及附图内容所作的等效结构或等效流程变换，或直接或间接运用在其他相关的技术领域，均同理包括在本发明的专利保护范围内。

Claims (16)

  1. 一种背光模组，包括灯条与导光板，其特征在于，还包括量子点玻璃管和固定件，所述固定件为中空结构，所述量子点玻璃管放置于所述固定件的腔体中，所述固定件设置于所述灯条与导光板之间，所述固定件的一侧壁与所述灯条的边框抵接，所述固定件的另一侧壁与所述导光板卡合。
  2. 根据权利要求1所述的背光模组，其特征在于，所述固定件朝向所述灯条的一侧壁设置有依次排列的多个第一凹槽，所述第一凹槽的形状与所述灯条中的LED灯形状适配，所述第一凹槽的边框抵接所述灯条边框后，一个LED灯对应容置于一个所述第一凹槽中。
  3. 根据权利要求1所述的背光模组，其特征在于，所述固定件朝向所述灯条的一侧壁设置有一个第二凹槽，所述第二凹槽的形状与所述灯条的形状适配，所述第二凹槽的边框抵接所述灯条边框后，所述灯条容置于所述第二凹槽中。
  4. 根据权利要求1所述的背光模组，其特征在于，所述固定件朝向所述灯条的一侧壁的四个角上或四个边缘处分别设置有多个凸台，所述凸台高度大于所述灯条厚度，所述凸台抵接所述灯条边框。
  5. 根据权利要求1所述的背光模组，其特征在于，所述导光板的厚度沿远离所述固定件的方向减小。
  6. 一种背光模组，包括灯条与导光板，其特征在于，还包括量子点玻璃管和固定件，所述固定件为中空结构，所述量子点玻璃管放置于所述固定件的腔体中，所述固定件设置于所述灯条与导光板之间，所述固定件的一侧壁与所述灯条的边框抵接，所述固定件的另一侧壁与所述导光板卡合；所述固定件朝向所述导光板的一侧壁设置有卡槽，所述卡槽宽度与所述导光板边缘厚度一致，所述导光板边缘卡合于所述卡槽中。
  7. 根据权利要求6所述的背光模组，其特征在于，所述卡槽的相对两侧壁分别朝向所述卡槽腔体的方向延伸出定位筋，所述导光板边缘对应于所述定位筋的位置设置有导轨槽，所述定位筋与所述导轨槽适配。
  8. 根据权利要求7所述的背光模组，其特征在于，所述导光板的厚度沿远离所述固定件的方向减小。
  9. 根据权利要求7所述的背光模组，其特征在于，所述固定件朝向所述灯条的一侧壁设置有依次排列的多个第一凹槽，所述第一凹槽的形状与所述灯条中的LED灯形状适配，所述第一凹槽的边框抵接所述灯条边框后，一个LED灯对应容置于一个所述第一凹槽中。
  10. 根据权利要求7所述的背光模组，其特征在于，所述固定件朝向所述灯条的一侧壁设置有一个第二凹槽，所述第二凹槽的形状与所述灯条的形状适配，所述第二凹槽的边框抵接所述灯条边框后，所述灯条容置于所述第二凹槽中。
  11. 根据权利要求7所述的背光模组，其特征在于，所述固定件朝向所述灯条的一侧壁的四个角上或四个边缘处分别设置有多个凸台，所述凸台高度大于所述灯条厚度，所述凸台抵接所述灯条边框。
  12. 一种背光模组，包括灯条与导光板，其特征在于，还包括量子点光学膜片，所述量子点光学膜片设置于所述灯条与导光板之间，所述导光板朝向所述量子点光学膜片的一侧壁上开有第三凹槽，所述量子点光学膜片贴附在所述第三凹槽的边缘上。
  13. 根据权利要求12所述的背光模组，其特征在于，所述第三凹槽的底面设置有多个褶皱。
  14. 根据权利要求13所述的背光模组，其特征在于，所述导光板的厚度沿远离所述量子点光学膜片的方向减小。
  15. 根据权利要求12所述的背光模组，其特征在于，所述第三凹槽为多个，每一个所述第三凹槽对应于一个LED灯。
  16. 根据权利要求12所述的背光模组，其特征在于，所述第三凹槽为一个，所述第三凹槽对应于整条所述灯条。
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