WO2015172378A1 - 一种背光模组及液晶显示装置 - Google Patents

一种背光模组及液晶显示装置 Download PDF

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Publication number
WO2015172378A1
WO2015172378A1 PCT/CN2014/077660 CN2014077660W WO2015172378A1 WO 2015172378 A1 WO2015172378 A1 WO 2015172378A1 CN 2014077660 W CN2014077660 W CN 2014077660W WO 2015172378 A1 WO2015172378 A1 WO 2015172378A1
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WIPO (PCT)
Prior art keywords
light
guide plate
backlight module
light guide
middle frame
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Application number
PCT/CN2014/077660
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English (en)
French (fr)
Inventor
李全
Original Assignee
深圳市华星光电技术有限公司
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Application filed by 深圳市华星光电技术有限公司 filed Critical 深圳市华星光电技术有限公司
Priority to US14/379,821 priority Critical patent/US20160245975A1/en
Publication of WO2015172378A1 publication Critical patent/WO2015172378A1/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
    • G02B6/0013—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
    • G02B6/0081—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
    • G02B6/0013—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
    • G02B6/0085—Means for removing heat created by the light source from the package

Definitions

  • the present invention relates to the field of display technologies, and in particular, to a backlight module and a liquid crystal display device. Background technique
  • 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 solution for realizing white light source, high color gamut, high color package and degree in backlight is: using ultraviolet LED with RGB
  • the phosphor is realized or realized by using a blue LED with a red-green phosphor or by using a blue LED plus a green LED plus a red LED.
  • Quantum Dot (QD) materials are used in backlight modules, and high-spectrum light sources (such as blue LEDs) are used to replace traditional white LED light sources. Quantum effects are used, and quantum dot materials can be illuminated by high-frequency light sources. It is excited to generate spectra of different wavelengths. By adjusting the size of the quantum dot material, the color of the synthesized light can be adjusted to achieve the backlight requirement of the high color gamut liquid crystal display, thereby improving the picture quality of the liquid crystal display. How to firmly fix quantum dot materials in the backlight module is the subject of current research.
  • the technical problem to be solved by the embodiments of the present invention is to provide a backlight module and a liquid crystal display device, which can firmly fix the quantum dot material in the backlight module, and can be simply and quickly assembled.
  • the first technical solution adopted by the present invention is: a backlight module, including a back plate, a light guide plate, a light source, a middle frame, and a quantum strip; wherein
  • the light guide plate is disposed between the back plate and the middle frame, and includes a light incident side and a light emitting side, wherein the light incident side is adjacent to the light source, and a groove is formed on the middle frame toward the middle frame;
  • the quantum strip is received in a cavity of the groove, and one end thereof abuts against a bottom inner wall of the groove;
  • the middle frame cover is disposed on the light guide plate and the light source, and a first buffer block abutting the other end of the quantum strip is disposed on a side of the back plate.
  • the first buffer block is pasted on the middle frame.
  • the height of the light incident side of the light guide plate is greater than the height of the light emitting side of the light guide plate.
  • the length of the quantum strip is greater than or equal to the height of the light-emitting side of the light guide plate.
  • At least one heat dissipating groove is disposed on the light incident side of the light guide plate, and the heat dissipating groove communicates with the groove and penetrates the outer side wall of the light guide plate on the light incident side toward the side of the back plate.
  • the backlight module further includes a second buffer block disposed between the back plate and the light incident side of the light guide plate.
  • the backlight module further includes a heat dissipation plate disposed between the second buffer block and the back plate.
  • the backlight module further includes a reflective sheet disposed on a side of the light guide plate on a light emitting side thereof facing the back plate; the middle frame is made of a plastic material.
  • the second technical solution adopted by the present invention is: a backlight module including a back plate, a light guide plate, a light source, a middle frame, and a quantum strip;
  • the light guide plate is disposed between the back plate and the middle frame, and includes a light incident side and a light emitting side.
  • the light side is adjacent to the light source, and is provided with a groove facing the middle frame; the quantum strip is received in the cavity of the groove, and one end thereof abuts against the bottom inner wall of the groove;
  • the middle frame is disposed on the light guide plate and the light source, and a first buffer block abutting the other end of the quantum strip is disposed on a side of the back plate, the first buffer block Paste on the middle frame.
  • the height of the light incident side of the light guide plate is greater than the height of the light emitting side of the light guide plate.
  • the length of the quantum strip is greater than or equal to the height of the light-emitting side of the light guide plate.
  • the third technical solution adopted by the present invention is: a liquid crystal display device, wherein the liquid crystal display device includes a backlight module;
  • the backlight module includes a back plate, a light guide plate, a light source, a middle frame, and a quantum strip.
  • the light guide plate is disposed between the back plate and the middle frame, and includes a light incident side and a light emitting side.
  • the light incident side is adjacent to the light source, and a groove is formed on the light incident side toward the middle frame;
  • the quantum strip is received in a cavity of the groove, and one end thereof abuts against a bottom inner wall of the groove;
  • the middle frame cover is disposed on the light guide plate and the light source, and a first buffer block abutting the other end of the quantum strip is disposed on a side of the back plate.
  • the first buffer block is pasted on the middle frame.
  • the height of the light incident side of the light guide plate is greater than the height of the light emitting side of the light guide plate.
  • the length of the quantum strip is greater than or equal to the height of the light-emitting side of the light guide plate.
  • At least one heat dissipating groove is disposed on the light incident side of the light guide plate, and the heat dissipating groove communicates with the groove and penetrates the outer side wall of the light guide plate on the light incident side toward the side of the back plate.
  • the backlight module further includes a second buffer block disposed between the back plate and the light incident side of the light guide plate.
  • the backlight module further includes a heat dissipation plate, and the heat dissipation plate is disposed on the second buffer block Between the back plate and the back plate.
  • the thickness of the light guide plate gradually decreases from the light emitting side in a direction away from the light source.
  • the backlight module further includes a reflective sheet disposed on a side of the light guide plate on a light emitting side thereof facing the back plate; the middle frame is made of a plastic material.
  • the backlight module and the liquid crystal display device provided by the invention have the following beneficial effects: a groove for accommodating a quantum strip is disposed on the light guide plate, and a middle frame which is disposed above the light guide plate and the light source is in contact with the quantum strip
  • the first buffer block enables the quantum strip to be placed in a simple and quick manner and is firmly fixed in the groove, and a heat dissipating groove is provided at the bottom of the groove, thereby maintaining the quantum strip with good heat dissipation and improving the service life thereof.
  • FIG. 1 is a schematic structural diagram of a backlight module according to a first embodiment of the present invention
  • FIG. 2 is a schematic structural diagram of a backlight module according to a second embodiment of the present invention.
  • FIG. 1 and FIG. 2 an embodiment of a backlight module of the present invention is shown.
  • FIG. 1 is a schematic structural diagram of a backlight module according to a first embodiment of the present invention.
  • a plurality of backlight modules may be disposed, and each of the light sources corresponds to one of the backlight modules.
  • a backlight module is taken as an example for description.
  • the backlight module provided by the first embodiment of the present invention includes a backplane 1, a light guide plate 2, a light source 3, a middle frame 4, and a quantum strip 5; wherein the light guide plate 2 is disposed between the backboard 1 and the middle frame 4, including Light entering side 21 and light emitting side 22, The light-incident side 21 is adjacent to the light source 3, and is provided with a recess 211 opening toward the middle frame 4; the quantum strip 5 is received in the cavity of the recess 211, and one end thereof abuts against the bottom inner wall of the recess 211;
  • the middle frame 4 is disposed on the light guide plate 2 and the light source 3, and is disposed in the direction of the back plate 1 with a first buffer block 6 abutting against the other end of the quantum strip 5, wherein the first buffer block 6 and the middle frame 4 are One piece.
  • the height of the light guide plate 2 on the light incident side 21 is larger than the light guide plate 2 on the light emitting side 22 (the side not including the quantum strip 5)
  • the height, in particular the length of the quantum strip 5 is greater than or equal to the height of the light-emitting side 22 of the light guide plate 2. It should be noted that the height of the light-incident side 2 of the light guide plate 2, the height of the light-emitting side 22 of the light guide plate 2, and the length of the quantum strip 5 are the same, and the values are the same as the center of the longitudinal direction of the light guide plate 2. Axis.
  • At least one heat dissipation groove 212 is disposed in the light incident side of the light guide plate 2, and the heat dissipation groove 212 communicates with the groove 211 and penetrates the light guide plate 2 to enter the light.
  • the side 21 faces the outer side wall on the side of the backing plate 1.
  • the backlight module further includes a second buffer block 7 disposed between the back plate 1 and the light-emitting side 22 of the light guide plate 2, which can effectively slow the light guide plate 2 and the back plate 1 Squeeze between the two to prevent the quantum strip 5 from being crushed and damaged; wherein the first buffer block 6 and the second buffer block 7 are mostly foamed materials, and the material is silica gel, EVA (Ethylene-vinyl Acetate copo, ethylene-vinyl acetate)
  • the material used for the first buffer block 6 and the second buffer block 7 may be different for the copolymer ⁇ TPU (thermoplastic polyurethanes).
  • the backlight module further includes a heat dissipation plate 8 disposed between the second buffer block 7 and the back plate 1 so that heat generated by the quantum strips 5 can be more efficiently discharged through the heat dissipation slots 212.
  • the heat sink 8 it acts to cool down.
  • the thickness of the light guide plate 2 gradually decreases from the light-emitting side 22 in a direction away from the light source 3, thereby reducing the overall weight of the backlight module, that is, being wedge-shaped.
  • the backlight module further includes a reflective sheet 9 disposed on a side of the light-emitting side 22 of the light guide plate 2 facing the back sheet 1.
  • the middle frame 4 is made of a plastic material.
  • a liquid crystal display device having the backlight module according to the first embodiment of the present invention, the backlight module and the backlight module in the first embodiment of the present invention.
  • the composition and connection relationship of the groups are the same, and will not be repeated here.
  • FIG. 2 is a schematic structural diagram of a backlight module according to a second embodiment of the present invention.
  • a plurality of backlight modules may be disposed, and each of the light sources corresponds to one of the backlight modules.
  • a backlight module will be described below as an example.
  • the backlight module provided by the second embodiment of the present invention includes a backplane 1, a light guide plate 2, a light source 3, a middle frame 4, and a quantum strip 5; wherein the light guide plate 2 is disposed between the backboard 1 and the middle frame 4, including The light-incident side 21 and the light-emitting side 22, the light-incident side 21 is close to the light source 3, and is provided with a recess 211 opening toward the middle frame 4;
  • the quantum strip 5 is housed in the cavity of the recess 211, and one end thereof abuts against the bottom inner wall of the recess 211;
  • the middle frame 4 is disposed on the light guide plate 2 and the light source 3.
  • the first buffer block 6 is abutted against the other end of the quantum strip 5 in the direction of the back plate 1.
  • the first buffer block 6 passes through the double-sided tape or other means. Paste on the middle frame 4.
  • the height of the light guide plate 2 on the light incident side 21 is larger than the light guide plate 2 on the light emitting side 22 (the side not including the quantum strip 5)
  • the height, in particular the length of the quantum strip 5 is greater than or equal to the height of the light-emitting side 22 of the light guide plate 2.
  • the height of the light guide plate 2 on the light side 21 and the light guide plate 2 are The height of the light side 22 and the length of the quantum strip 5 are the same in the direction of the value, and the value direction is perpendicular to the central axis of the longitudinal direction of the light guide plate 2.
  • At least one heat dissipation groove 212 is disposed in the light incident side of the light guide plate 2, and the heat dissipation groove 212 communicates with the groove 211 and penetrates the light guide plate 2 to enter the light.
  • the side 21 faces the outer side wall on the side of the backing plate 1.
  • the backlight module further includes a second buffer block 7 disposed between the back plate 1 and the light-emitting side 22 of the light guide plate 2, which can effectively slow the light guide plate 2 and the back plate 1 Squeeze between the two to prevent the quantum strip 5 from being crushed and damaged; wherein the first buffer block 6 and the second buffer block 7 are mostly foamed materials, and the material is silica gel, EVA (Ethylene-vinyl Acetate copo, ethylene-vinyl acetate)
  • the material used for the first buffer block 6 and the second buffer block 7 may be different for the copolymer ⁇ TPU (thermoplastic polyurethanes).
  • the backlight module further includes a heat dissipation plate 8 disposed between the second buffer block 7 and the back plate 1 so that heat generated by the quantum strips 5 can be more efficiently discharged through the heat dissipation slots 212. In the heat sink 8, it acts to cool down.
  • the thickness of the light guide plate 2 is gradually reduced from the light-emitting side 22 in a direction away from the light source 3, thereby reducing the overall weight of the backlight module, that is, being wedge-shaped.
  • the backlight module further includes a reflective sheet 9 disposed on a side of the light-emitting side 22 of the light guide plate 2 facing the back sheet 1.
  • the middle frame 4 is made of a plastic material.
  • a liquid crystal display device which has the backlight module according to the second embodiment of the present invention, and the backlight module and the backlight module in the second embodiment of the present invention.
  • the composition and connection relationship of the groups are the same, and will not be repeated here.
  • a groove for accommodating the quantum strip is disposed on the light guide plate, and a first buffer block abutting the quantum strip is disposed on the middle frame above the light guide plate and the light source, so that the quantum strip can be quickly and easily placed and firmly fixed In the groove, and at the bottom of the groove, a heat dissipating groove is provided, thereby maintaining the quantum strip with good heat dissipation and improving the service life thereof.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Planar Illumination Modules (AREA)
  • Liquid Crystal (AREA)

Abstract

一种背光模组和液晶显示装置，该背光模组包括背板（1）、导光板（2）、光源（3）、中框（4）以及量子条（5）；其中，所述导光板（2）设置于所述背板（1）和所述中框（4）之间，包括入光侧（21）和发光侧（22），所述入光侧（21）靠近所述光源（3），其上设有一开口朝向所述中框（4）的凹槽（211）；所述量子条（5）容纳于所述凹槽（211）的腔体内，其一端与所述凹槽（211）的底部内壁相抵接；所述中框（4）盖设于所述导光板（2）和所述光源（3）上，其朝向所述背板（1）一侧上设有与所述量子条（5）的另一端相抵接的第一缓冲块（6）。该背光模组及液晶显示装置，能够将量子点材料牢固的固定在背光模组中，并且能够简单快速的组装。

Description

一 ^¾且及 晶显示 ^皿 本申请要求于 2014 年 5 月 12 曰提交中国专利局、 申请号为 201410197215. 7、 发明名称为" 一种背光模组及液晶显示装置〃 的中国专利 申请的优先权，上述专利的全部内容通过引用结合在本申请中。 技术领域
本发明涉及显示技术领域，尤其涉及一种背光模组及液晶显示装置。 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 ΐ包和 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 ΐ包 和度的方案有：利用紫外 LED配合 RGB荧光粉实现或利用蓝光 LED配合 红绿荧光粉实现或利用蓝光 LED加绿光 LED加红光 LED实现等。 这些方 式都可以提高色域，但是实施起来困难，并且成本越高。
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（如蓝光 LED )取代传统白光 LED光源，利用量子效应，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，从而提升液晶显示器的画面品质。 如何将量子点材料牢固的固定在背光 模组中是目前研究的课题。
发明内容
本发明实施例所要解决的技术问题在于，提供一种背光模组及液晶显示 装置，能够将量子点材料牢固的固定在背光模组中，并且能够简单快速的组 为了解决上述技术问题，本发明采用的第一种技术方案为：一种背光模 组，包括背板、 导光板、 光源、 中框以及量子条；其中，
所述导光板设置于所述背板和所述中框之间，包括入光侧和发光侧，所 述入光侧靠近所述光源，其上设有一开口朝向所述中框的凹槽；
所述量子条容纳于所述凹槽的腔体内，其一端与所述凹槽的底部内壁相 抵接；
所述中框盖设于所述导光板和所述光源上，其朝向所述背板一侧上设有 与所述量子条的另一端相抵接的第一缓冲块。
其中，所述第一缓冲块粘贴在所述中框上。
其中，所述导光板入光侧的高度大于所述导光板发光侧的高度。
其中，所述量子条的长度大于或等于所述导光板发光侧的高度。
其中，所述导光板入光侧上设有至少一散热槽，所述散热槽与所述凹槽 相连通，并贯穿所述导光板入光侧其朝向所述背板一侧的外侧壁。
其中，所述背光模组还包括第二缓冲块，所述第二缓冲块设置于所述背 板和所述导光板入光侧之间。
其中，所述背光模组还包括散热板，所述散热板设置于所述第二缓冲块 和所述背板之间。
其中，所述导光板的厚度自所述发光侧起沿远离所述光源的方向逐渐減 小。 其中，所述背光模组还包括反射片，所述反射片设置于所述导光板发光 侧其朝向所述背板的一侧；所述中框由塑料材料制成。
为了解决上述技术问题，本发明采用的第二种技术方案为：一种背光模 组，包括背板、 导光板、 光源、 中框以及量子条；其中，
所述导光板设置于所述背板和所述中框之间，包括入光侧和发光侧，所 述入光侧靠近所述光源，其上设有一开口朝向所述中框的凹槽； 所述量子条容纳于所述凹槽的腔体内，其一端与所述凹槽的底部内壁相 抵接；
所述中框盖设于所述导光板和所述光源上，其朝向所述背板一侧上设有 与所述量子条的另一端相抵接的第一缓冲块，所述第一缓冲块粘贴在所述中 框上。
其中，所述导光板入光侧的高度大于所述导光板发光侧的高度。
其中，所述量子条的长度大于或等于所述导光板发光侧的高度。 为了解决上述技术问题，本发明采用的第三种技术方案为：一种液晶显 示装置，其中，液晶显示装置包括背光模组；
所述背光模组包括背板、 导光板、 光源、 中框以及量子条；其中， 所述导光板设置于所述背板和所述中框之间，包括入光侧和发光侧，所 述入光侧靠近所述光源，其上设有一开口朝向所述中框的凹槽；
所述量子条容纳于所述凹槽的腔体内，其一端与所述凹槽的底部内壁相 抵接；
所述中框盖设于所述导光板和所述光源上，其朝向所述背板一侧上设有 与所述量子条的另一端相抵接的第一缓冲块。
其中，所述第一缓冲块粘贴在所述中框上。
其中，所述导光板入光侧的高度大于所述导光板发光侧的高度。
其中，所述量子条的长度大于或等于所述导光板发光侧的高度。
其中，所述导光板入光侧上设有至少一散热槽，所述散热槽与所述凹槽 相连通，并贯穿所述导光板入光侧其朝向所述背板一侧的外侧壁。
其中，所述背光模组还包括第二缓冲块，所述第二缓冲块设置于所述背 板和所述导光板入光侧之间。
其中，所述背光模组还包括散热板，所述散热板设置于所述第二缓冲块 和所述背板之间。
其中，所述导光板的厚度自所述发光侧起沿远离所述光源的方向逐渐減 小。
其中，所述背光模组还包括反射片，所述反射片设置于所述导光板发光 侧其朝向所述背板的一侧；所述中框由塑料材料制成。
本发明所提供的背光模组及液晶显示装置，具有如下有益效果：由于在 导光板上设有容纳量子条的凹槽以及盖设在导光板和光源上方的中框上有 与量子条相抵接的第一缓冲块，使得量子条能够简单快速的被放置并牢靠固 定在凹槽内，且在凹槽底部设有散热槽，从而保持量子条具有良好的散热性， 提高了其使用寿命。
附图说明
图 1为本发明第一实施例提供的背光模组的结构示意图；
图 2为本发明第二实施例提供的背光模组的结构示意图；
图中： 1-背板， 2-导光板， 21-入光侧， 211-凹槽， 212-散热槽， 22-发光 侧， 3-光源， 4-中框， 5-量子条， 6-第一缓冲块， 7-第二缓冲块， 8-散热板，
9-反射片。
具体实施方式
下面参考附图对本发明的优选实施例进行描述。
结合参见图 1和图 2 ,为本发明背光模组的实施例。
如图 1所示，为本发明第一实施例提供的背光模组的结构示意图。 本发 明第一实施例中背光模组，可以设置有多个，每一个光源对应一个该背光模 组，为叙述简便，以下以一个背光模组为例进行说明。 本发明第一实施例提 供的背光模组，包括背板 1、 导光板 2、 光源 3、 中框 4以及量子条 5；其中， 导光板 2设置于背板 1和中框 4之间，包括入光侧 21和发光侧 22 ,该 入光侧 21靠近光源 3 ,其上设有一开口朝向中框 4的凹槽 211； 量子条 5容纳于凹槽 211的腔体内，其一端与凹槽 211的底部内壁相抵 接；
中框 4盖设于导光板 2和光源 3上，其朝向背板 1方向设有与量子条 5 的另一端相抵接的第一缓冲块 6 ,其中，第一缓冲块 6与中框 4为一体成型。
为了能够提升液晶显示器中面板显示品质，需要尽可能实现导光板 2在 入光侧 21 (包括量子条 5的一侧）的高度大于导光板 2在发光侧 22 (不包 括量子条 5的一侧）的高度，尤其是量子条 5的长度要大于或等于导光板 2 发光侧 22的高度。 应当说明的是，导光板 2入光侧 21的高度、 导光板 2发 光侧 22的高度以及量子条 5的长度，其三者取值方向一致，该取值方向垂 直导光板 2长度方向的中心轴线。
为了保持量子条 5具有良好的散热性，提高其使用寿命，导光板 2入光 侧 21内设有至少一散热槽 212 ,该散热槽 212与凹槽 211相连通，并贯穿导 光板 2入光侧 21其朝向背板 1一侧的外侧壁。
更进一步的，背光模组还包括第二缓冲块 7 ,第二缓冲块 7设置于背板 1和所述导光板 2发光侧 22之间，能够有效的減缓导光板 2与背板 1之间的 挤压，避免量子条 5受到挤压而损坏；其中，第一缓冲块 6和第二缓冲块 7 多为发泡材料，材料有硅胶、 EVA ( Ethylene-vinyl Acetate copo ,乙烯 -醋酸 乙烯共聚物 λ TPU( Thermoplastic polyurethanes ,热塑性聚氨酯弹性体橡胶） 等，第一缓冲块 6和第二缓冲块 7所采用的材料可以不同。
更进一步的，背光模组还包括散热板 8 ,该散热板 8设置于第二缓冲块 7和所述背板 1之间，使得量子条 5产生的热量能够通过散热槽 212更有效 的排放到散热板 8中，从而起到降温的作用。 更进一步的，导光板 2的厚度自发光侧 22起沿远离光源 3的方向逐渐 減小，从而达到減小背光模组的整体重量，即设计为楔形。
更进一步的，背光模组还包括反射片 9 ,该反射片 9设置于导光板 2发 光侧 22其朝向所述背板 1的一侧。
更进一步的，中框 4由塑料材料制成。
相应于本发明第一实施例的背光模组，还提供一种液晶显示装置，具有 本发明第一实施例所述的背光模组，该背光模组与本发明第一实施例中的背 光模组的构成及连接关系相同，在此不再一一赘述。
如图 2所示，为本发明第二实施例提供的背光模组的结构示意图。 本发 明第二实施例中背光模组可以设置有多个，每一个光源对应一个该背光模 组，为叙述简便，以下以一个背光模组为例进行说明。 本发明第二实施例提 供的背光模组，包括背板 1、 导光板 2、 光源 3、 中框 4以及量子条 5；其中， 导光板 2设置于背板 1和中框 4之间，包括入光侧 21和发光侧 22 ,该 入光侧 21靠近光源 3 ,其上设有一开口朝向中框 4的凹槽 211；
量子条 5容纳于凹槽 211的腔体内，其一端与凹槽 211的底部内壁相抵 接；
中框 4盖设于导光板 2和光源 3上，其朝向背板 1方向设有与量子条 5 的另一端相抵接的第一缓冲块 6 ,第一缓冲块 6通过双面胶或者其它方式粘 贴在中框 4上。
为了能够提升液晶显示器中面板显示品质，需要尽可能实现导光板 2在 入光侧 21 (包括量子条 5的一侧）的高度大于导光板 2在发光侧 22 (不包 括量子条 5的一侧）的高度，尤其是量子条 5的长度要大于或等于导光板 2 发光侧 22的高度。 应当说明的是，导光板 2入光侧 21的高度、 导光板 2发 光侧 22的高度以及量子条 5的长度，其三者取值方向一致，该取值方向垂 直导光板 2长度方向的中心轴线。
为了保持量子条 5具有良好的散热性，提高其使用寿命，导光板 2入光 侧 21内设有至少一散热槽 212 ,该散热槽 212与凹槽 211相连通，并贯穿导 光板 2入光侧 21其朝向背板 1一侧的外侧壁。
更进一步的，背光模组还包括第二缓冲块 7 ,第二缓冲块 7设置于背板 1和所述导光板 2发光侧 22之间，能够有效的減缓导光板 2与背板 1之间的 挤压，避免量子条 5受到挤压而损坏；其中，第一缓冲块 6和第二缓冲块 7 多为发泡材料，材料有硅胶、 EVA ( Ethylene-vinyl Acetate copo ,乙烯 -醋酸 乙烯共聚物 λ TPU( Thermoplastic polyurethanes ,热塑性聚氨酯弹性体橡胶） 等，第一缓冲块 6和第二缓冲块 7所采用的材料可以不同。
更进一步的，背光模组还包括散热板 8 ,该散热板 8设置于第二缓冲块 7和所述背板 1之间，使得量子条 5产生的热量能够通过散热槽 212更有效 的排放到散热板 8中，从而起到降温的作用。
更进一步的，导光板 2的厚度自发光侧 22起沿远离光源 3的方向逐渐 減小，从而达到減小背光模组的整体重量，即设计为楔形。
更进一步的，背光模组还包括反射片 9 ,该反射片 9设置于导光板 2发 光侧 22其朝向所述背板 1的一侧。
更进一步的，中框 4由塑料材料制成。
相应于本发明第二实施例的背光模组，也提供一种液晶显示装置，具有 本发明第二实施例所述的背光模组，该背光模组与本发明第二实施例中的背 光模组的构成及连接关系相同，在此不再一一赘述。
实施本发明所提供的背光模组及液晶显示装置，具有如下有益效果：由 于在导光板上设有容纳量子条的凹槽以及盖设在导光板和光源上方的中框 上有与量子条相抵接的第一缓冲块，使得量子条能够简单快速的被放置并牢 靠固定在凹槽内，且在凹槽底部设有散热槽，从而保持量子条具有良好的散 热性，提高了其使用寿命。
本领域普通技术人员可以理解实现上述实施例方法中的全部或部分步 骤是可以通过程序来指令相关的硬件来完成，所述的程序可以存储于一计算 机可读取存储介质中，所述的存储介质，如 ROM/RAM、 磁盘、 光盘等。
以上所揭露的仅为本发明较佳实施例而已，当然不能以此来限定本发明 之权利范围，因此依本发明权利要求所作的等同变化，仍属本发明所涵盖的 范围。

Claims

权 利 要 求
1、 一种背光模组，其中，包括背板、 导光板、 光源、 中框以及量子条； 其中，
所述导光板设置于所述背板和所述中框之间，包括入光侧和发光侧，所 述入光侧靠近所述光源，其上设有一开口朝向所述中框的凹槽；
所述量子条容纳于所述凹槽的腔体内，其一端与所述凹槽的底部内壁相 抵接；
所述中框盖设于所述导光板和所述光源上，其朝向所述背板一侧上设有 与所述量子条的另一端相抵接的第一缓冲块。
2、 如权利要求 1所述的背光模组，其中，所述第一缓冲块粘贴在所述 中框上。
3、 如权利要求 2所述的背光模组，其中，所述导光板入光侧的高度大 于所述导光板发光侧的高度。
4、 如权利要求 3所述的背光模组，其中，所述量子条的长度大于或等 于所述导光板发光侧的高度。
5、 如权利要求 4所述的背光模组，其中，所述导光板入光侧上设有至 少一散热槽，所述散热槽与所述凹槽相连通，并贯穿所述导光板入光侧其朝 向所述背板一侧的外侧壁。
6、 如权利要求 5所述的背光模组，其中，所述背光模组还包括第二缓 冲块，所述第二缓冲块设置于所述背板和所述导光板入光侧之间。
7、 如权利要求 6所述的背光模组，其中，所述背光模组还包括散热板， 所述散热板设置于所述第二缓冲块和所述背板之间。
8、 如权利要求 7所述的背光模组，其中，所述导光板的厚度自所述发 光侧起沿远离所述光源的方向逐渐減小。
9、 如权利要求 8所述的背光模组，其中，所述背光模组还包括反射片， 所述反射片设置于所述导光板发光侧其朝向所述背板的一侧；所述中框由塑 料材料制成。
10、 一种背光模组，其中，包括背板、 导光板、 光源、 中框以及量子条； 其中，
所述导光板设置于所述背板和所述中框之间，包括入光侧和发光侧，所 述入光侧靠近所述光源，其上设有一开口朝向所述中框的凹槽；
所述量子条容纳于所述凹槽的腔体内，其一端与所述凹槽的底部内壁相 抵接；
所述中框盖设于所述导光板和所述光源上，其朝向所述背板一侧上设有 与所述量子条的另一端相抵接的第一缓冲块，所述第一缓冲块粘贴在所述中 框上。
11、 如权利要求 10所述的背光模组，其中，所述导光板入光侧的高度 大于所述导光板发光侧的高度。
12、 如权利要求 11 所述的背光模组，其中，所述量子条的长度大于或 等于所述导光板发光侧的高度。
13、 一种液晶显示装置，其中，包括背光模组，所述背光模组包括背板、 导光板、 光源、 中框以及量子条；其中，
所述导光板设置于所述背板和所述中框之间，包括入光侧和发光侧，所 述入光侧靠近所述光源，其上设有一开口朝向所述中框的凹槽；
所述量子条容纳于所述凹槽的腔体内，其一端与所述凹槽的底部内壁相 抵接；
所述中框盖设于所述导光板和所述光源上，其朝向所述背板一侧上设有 与所述量子条的另一端相抵接的第一缓冲块。
14、 如权利要求 13所述的液晶显示装置，其中，所述第一缓冲块粘贴 在所述中框上。
15、 如权利要求 14所述的液晶显示装置，其中，所述量子条的长度大 于或等于所述导光板发光侧的高度。
16、 如权利要求 15所述的液晶显示装置，其中，所述导光板（ 2 )入光 侧上设有至少一散热槽，所述散热槽与所述凹槽相连通，并贯穿所述导光板 入光侧其朝向所述背板一侧的外侧壁。
17、 如权利要求 16所述的液晶显示装置，其中，所述背光模组还包括 第二缓冲块，所述第二缓冲块设置于所述背板和所述导光板入光侧之间。
18、 如权利要求 17所述的液晶显示装置，其中，所述背光模组还包括 散热板，所述散热板设置于所述第二缓冲块和所述背板之间。
19、 如权利要求 18所述的液晶显示装置，其中，所述导光板的厚度自 所述发光侧起沿远离所述光源的方向逐渐減小。
20、 如权利要求 19所述的液晶显示装置，其中，所述背光模组还包括 反射片，所述反射片设置于所述导光板发光侧其朝向所述背板的一侧；所述 中框由塑料材料制成。
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