WO2016019596A1 - 背光模组结构 - Google Patents

背光模组结构 Download PDF

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Publication number
WO2016019596A1
WO2016019596A1 PCT/CN2014/084458 CN2014084458W WO2016019596A1 WO 2016019596 A1 WO2016019596 A1 WO 2016019596A1 CN 2014084458 W CN2014084458 W CN 2014084458W WO 2016019596 A1 WO2016019596 A1 WO 2016019596A1
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WO
WIPO (PCT)
Prior art keywords
light guide
sub
guide plate
groove
backlight module
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/CN2014/084458
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English (en)
French (fr)
Inventor
常建宇
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TCL China Star Optoelectronics Technology Co Ltd
Original Assignee
Shenzhen China Star Optoelectronics Technology Co Ltd
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Publication date
Application filed by Shenzhen China Star Optoelectronics Technology Co Ltd filed Critical Shenzhen China Star Optoelectronics Technology Co Ltd
Priority to US14/390,387 priority Critical patent/US9459393B2/en
Publication of WO2016019596A1 publication Critical patent/WO2016019596A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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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
    • G02B6/0015—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
    • G02B6/0021—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 for housing at least a part of the light source, e.g. by forming holes or recesses
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0066—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form characterised by the light source being coupled to the light guide
    • G02B6/0068—Arrangements of plural sources, e.g. multi-colour light sources
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0066—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form characterised by the light source being coupled to the light guide
    • G02B6/0073—Light emitting diode [LED]
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—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
    • G02B6/0075—Arrangements of multiple light guides
    • G02B6/0078—Side-by-side arrangements, e.g. for large area displays

Definitions

  • the present invention relates to the field of liquid crystal display technologies, and in particular, to a backlight module structure. Background technique
  • Liquid Crystal Display has many advantages such as thin body, power saving, no radiation, etc., and has been widely used, such as mobile phones, personal digital assistants (PDA digital cameras, computer screens or laptop screens, etc.). .
  • the structure of the conventional liquid crystal panel is A color filter substrate (Color Filter, a thin film transistor array substrate (TFT Array Substrate), and a liquid crystal layer disposed between the two substrates, the working principle is A driving voltage is applied to the two glass substrates to control the rotation of the liquid crystal molecules of the liquid crystal layer, and the light of the backlight module is refracted to generate a picture. Since the liquid crystal panel itself does not emit light, the light source provided by the backlight module is required to display the image normally.
  • the backlight module becomes one of the key components of the liquid crystal display device.
  • the backlight module is divided into a side-in type according to the incident position of the light source.
  • Optical module and direct type backlight module a light source (for example, a cathode fluorescent lamp (CCFL) or a light emitting diode (LED)) is disposed behind the liquid crystal panel, and a surface light source is directly formed and supplied to the liquid crystal panel.
  • the side-lit backlight module has a backlight LED strip (Light bar) disposed at the edge of the back panel behind the liquid crystal panel, and the light emitted by the LED strip is from the light guide plate (LGP). The light surface enters the light guide plate, is reflected and diffused, and is emitted from the light exit surface of the light guide plate, and then passes through the optical film group to form a surface light source to be supplied to the liquid crystal panel.
  • LGP light guide plate
  • FIG. 1 is a schematic diagram of a structure of a conventional side-entry backlight module.
  • the conventional side-lit backlight module includes: a backplane 100, a light guide plate 300 disposed in the backplane 100, an LED light source 500 mounted on the heat sink 800 on the side of the light guide plate 300, and a backlight 500 and a light guide plate.
  • the plastic frame 700 disposed on the back plate 100, the optical film set 900 disposed on the light guide plate 300, the bottom reflective sheet 200 disposed between the bottom plate 130 of the back plate 100 and the light guide plate 300, and the light guide plate 300 is adjacent to the plurality of dots 400 on the surface of the bottom reflective sheet 200 and the reflective sheet 600 attached to the corresponding portion of the bezel 700 above the LED light source 500.
  • the light guide plate 300 of the existing side-entry backlight module structure is a whole. Due to the limitations of machine size and production technology, only one-piece light guide plate with a small size can be produced. In recent years, liquid crystal display devices, especially liquid crystal cells, have gradually become larger (such as 110-inch X thinner, corresponding The relevant optical components in the backlight module structure must meet the requirements of large size, and the integrated light guide plate obviously cannot meet this requirement, and needs to be improved to promote the liquid crystal power to a larger size and a thinner direction. development of. Summary of the invention
  • the object of the present invention is to provide a backlight module structure, which can meet the requirements of large-scale light guide plate size, and can realize dynamic dimming, save energy consumption, and improve optical quality.
  • the present invention provides a backlight module structure, including a backplane, a light guide plate disposed in the backplane, and at least two backlights disposed in the backplane, the backplane including a bottom panel and a vertical connection with the bottom panel a plurality of side plates, wherein the light guide plate comprises at least two sub-light guide plates connected in sequence, and a groove is formed at a joint of two adjacent sub-light guide plates, the opening of the groove faces the bottom plate, and the bottom plate corresponds to the groove A convex hull is disposed, and the two backlights are respectively mounted on the convex hull and are disposed between the concave groove and the convex hull, and the two backlights respectively emit light toward the adjacent two sub-light guide plates.
  • Each of the sub-light guide plates is provided with a connection surface perpendicular to the top surface of the sub-light guide plate, and a light-incident surface connected to the connection surface and recessed toward the interior of the sub-light guide plate; the connection of each adjacent two sub-light guide plates The faces are aligned against each other such that the light incident faces of each of the two adjacent sub-light guide plates together form a groove.
  • the light incident surface is a sloped surface, and the groove has an inverted "V" shape in cross section.
  • the convex hull of the bottom plate has an inverted "V" shape, and the convex hull includes opposite first and second The slopes are respectively mounted on the first and second inclined surfaces.
  • the apex angle ⁇ of the convex hull is greater than 90°, and the first and second inclined surfaces are respectively parallel to the incident surface opposite thereto.
  • the sub-light guide plate is manufactured by injection molding, or by roll forming and then cutting.
  • the sub-light guide plate is provided with a plurality of mesh points on the bottom surface thereof.
  • the backlight is an LED light bar.
  • the LED light bar adopts an SMD mode or a COB mode.
  • the backlight module structure further includes an optical film set disposed on the light guide plate and a plastic frame disposed on the side plate of the back plate above the light guide plate.
  • the invention has a beneficial effect: a backlight module structure of the present invention, wherein the light guide plate comprises at least two sub-light guide plates connected in sequence, and a groove is formed at a joint of two adjacent sub-light guide plates on the bottom plate of the back plate.
  • a convex hull is disposed corresponding to the groove, and at least two backlights are respectively mounted on the convex hull, and are accommodated between the groove and the convex hull, which not only can meet the requirement of large size of the light guide plate, but also can be further Good dynamic dimming, saving energy and improving optical quality.
  • FIG. 1 is a schematic view showing the structure of a conventional side-entry backlight module
  • FIG. 2 is a schematic view showing the structure of a backlight module of the present invention
  • FIG. 3 is a schematic view of a sub-light guide plate of a backlight module structure of the present invention.
  • FIG. 4 is a schematic view of a light guide plate of a backlight module structure of the present invention.
  • FIG. 5 is a schematic view of a backplane bottom plate of a backlight module structure of the present invention.
  • FIG. 7 is a schematic diagram of the LED light source mounted on the backplane of the backlight module structure of the present invention.
  • FIG. 7 is a schematic view of the backplane bottom plate, the LED light source and the light guide plate of the backlight module structure of the present invention. detailed description
  • the present invention provides a backlight module structure.
  • the backlight module structure package The back plate 1 includes a light guide plate 3 disposed in the back plate 1 and at least two backlights 5 disposed in the back plate 1.
  • the backboard 1 includes a bottom plate 11 and a plurality of side plates 13 vertically connected to the bottom plate 11.
  • the backing plate can be made of aluminum sheet metal.
  • the light guide plate 3 includes at least two sub-light guide plates 4 connected in sequence, and a groove 33 is formed at the junction of two adjacent sub-light guide plates 4, and the opening of the groove 33 faces the bottom plate 11
  • the bottom plate 11 is provided with a convex hull 111 corresponding to the groove 33.
  • the at least two backlights 5 are respectively mounted on the convex hull 111 and are received between the groove 33 and the convex hull 111.
  • the source 5 emits light toward the adjacent two sub-light guide plates 4, respectively.
  • each sub-light guide plate 4 is provided with a vertical portion corresponding to the top of the sub-light guide plate 4.
  • each adjacent two sub-light guide plates 4 is aligned and abutted, and the light-incident surface 413 of each adjacent two sub-light guide plates 4 forms a groove 33 to realize the connection of the adjacent two sub-light guide plates 4.
  • the light incident surface 413 may be a sloped surface or a curved surface.
  • the cross section of the groove 33 has an inverted “V” shape or an inverted “U” shape.
  • the light incident surface 413 is Bevel
  • the groove 33 has an inverted "V” shape in cross section.
  • a plurality of mesh points 6 are also disposed on the bottom surface of the sub-light guide plate 4.
  • the plurality of dots 6 can diffuse light, adjust the light distribution to make the light more uniform, and the shape can be semicircular, semi-elliptical, triangular pyramidal, quadrangular pyramid or pyramidal.
  • the sub-light guide plate 4 may be integrally formed by injection molding, or may be formed by rolling a plurality of sub-light guide plates 4 and then cutting into a plurality of individual sub-light guide plates 4.
  • FIG. 5 corresponding to the groove 33 having an inverted “V” shape in the cross section
  • the cross section of the convex hull 111 disposed on the bottom plate 11 is also inverted “V"
  • the The height of the convex hull 111 is smaller than the depth of the groove 33, so that there is a certain space between the convex hull 111 and the groove 33, and the backlight 5 can be accommodated.
  • the convex hull 111 includes first and second inclined surfaces 112 and 113 disposed opposite to each other, and the first and second inclined surfaces 112 and 113 are respectively parallel to the light incident surface 413 opposite thereto, and the two backlights 5 are respectively installed in the same
  • the first and second inclined surfaces 112 and 113 are disposed between the convex hull 111 and the groove 33.
  • the structure can improve the coupling efficiency and the light utilization rate, reduce the light loss, avoid the problem of light leakage at the edge of the liquid crystal display device, better realize the dynamic dimming, and improve the optical quality.
  • the backlight 5 is directly mounted on the back plate 1 On the bottom plate 11, it is good for heat dissipation.
  • the apex angle ⁇ of the convex hull 111 is greater than 90°, and the height of the convex hull 111 is avoided. Too large, which is advantageous for thinning of the liquid crystal display device.
  • the backlight 5 is an LED light bar.
  • the LED light bar can adopt a surface mounted device (SMD) method or a chip on board (COB) method.
  • SMD surface mounted device
  • COB chip on board
  • the backlight module structure further includes an optical film set 9 disposed on the light guide plate 3 and a plastic frame 7 disposed on the side plate 13 of the back plate 1 above the light guide plate 3.
  • the backlight module of the present invention has a light guide plate including at least two sub-light guide plates connected in sequence, and a groove is formed at a joint of two adjacent sub-light guide plates, and is disposed on the bottom plate of the back plate.
  • a convex hull should be disposed in the groove, and at least two backlights are respectively mounted on the convex hull, and are accommodated between the groove and the convex hull, which not only can meet the requirement of large-sized light guide plate size, but also can be better. Realize dynamic dimming, save energy, improve optical quality, and the structure is simple and easy to implement.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Planar Illumination Modules (AREA)
  • Nonlinear Science (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)

Abstract

一种背光模组结构，包括背板(1)、设于背板(1)内的导光板(3)、设于背板(1)内的至少两背光源(5)；所述背板(1)包括底板(11)及与底板(11)垂直连接的数个侧板(13)；所述导光板(3)包括依次连接的至少两个子导光板(4)，于相邻两个子导光板(4)的连接处形成一凹槽(33)，该凹槽(33)的开口朝向底板(11)，所述底板(11)对应该凹槽(33)设置一凸包(111)，两背光源(5)分别安装于所述凸包(111)上，且容置于凹槽(33)与凸包(111)之间，所述两背光源(5)分别朝向该相邻两个子导光板(4)发光。该背光模组结构能够满足导光板尺寸大型化的要求，同时可以更好的实现动态调光，节省能耗，提升光学品质。

Description

背光模组结构 技术领域
本发明涉及液晶显示技术领域，尤其涉及一种背光模组结构。 背景技术
液晶显示装置 ( Liquid Crystal Display , LCD )具有机身薄、 省电、 无 辐射等众多优点，得到了广泛的应用，如：移动电话、个人数字助理（ PDA 数字相机、 计算机屏幕或笔记本电脑屏幕等。
现有市场上的液晶显示装置大部分为背光型液晶显示装置，其包括壳 体、 设于壳体内的液晶面板及设于壳体内的背光模组 ( Backlight module \ 传统的液晶面板的结构是由一彩色滤光片基板 ( Color Filter , CF 一薄膜 晶体管阵列基板 ( Thin Film Transistor Array Substrate , TFT Array Substrate ) 以及一配置于两基板间的液晶层（ Liquid Crystal Layer )所构成，其工作原 理是通过在两片玻璃基板上施加驱动电压来控制液晶层的液晶分子的旋 转，将背光模组的光线折射出来产生画面。 由于液晶面板本身不发光，需 要借由背光模组提供的光源来正常显示影像，因此，背光模组成为液晶显 示装置的关键组件之一。 背光模组依照光源入射位置的不同分成侧入式背 光模组与直下式背光模组。 直下式背光模组是将发光光源 (例如阴极萤光 灯管（ Cold Cathode Fluorescent Lamp , CCFL )或发光二极管（ Light Emitting Diode , LED ) )设置在液晶面板后方，直接形成面光源提供给液晶面板。而 侧入式背光模组是将背光源 LED灯条 ( Light bar )设于液晶面板侧后方的 背板边缘处， LED灯条发出的光线从导光板 ( Light Guide Plate , LGP )— 侧的入光面进入导光板，经反射和扩散后从导光板出光面射出，再经由光 学膜片组，以形成面光源提供给液晶面板。
如图 1所示，为一种现有的侧入式背光模组结构的示意图。 该现有的 侧入式背光模组包括：背板 100、 设于背板 100内的导光板 300、 于导光板 300侧面安装于散热板 800上的 LED光源 500、于背光源 500与导光板 300 上方设于背板 100上的胶框 700、 设于导光板 300上的光学膜片组 900、 设 于背板 100的底板 130与导光板 300之间的底反射片 200、 设于导光板 300 靠近底反射片 200的表面上的数个网点 400、 及于 LED光源 500上方贴附 于胶框 700相应部位的反射片 600。
该现有的侧入式背光模组结构的导光板 300为一整体。 受限于机台尺 寸及生产技术的限制，只能制作尺寸较小的一体式导光板。 近年来，液晶 显示装置尤其是液晶电枧逐渐向大型化 (如 110英寸 X 薄型化发展，相应 的，背光模组结构中的相关光学部件必需满足大尺寸的要求，而一体式导 光板显然不能满足这一要求，需对其进行改进，以促进液晶电枧向更大尺 寸、 更薄的方向发展。 发明内容
本发明的目的在于提供一种背光模组结构，能够满足导光板尺寸大型 化的要求，同时可以更好的实现动态调光，节省能耗，提升光学品质。
为实现上述目的，本发明提供一种背光模组结构，包括背板、 设于背 板内的导光板、 设于背板内的至少两背光源，所述背板包括底板及与底板 垂直连接的数个侧板，所述导光板包括依次连接的至少两个子导光板，于 相邻两个子导光板的连接处形成一凹槽，该凹槽的开口朝向底板，所述底 板对应该凹槽设置一凸包，两背光源分别安装于所述凸包上，且容置于所 述凹槽与凸包之间，所述两背光源分别朝向该相邻两个子导光板发光。
所述每一子导光板对应连接处设有一垂直于子导光板顶面的连接面、 及连接于该连接面并朝向子导光板内部凹陷的入光面；每相邻两个子导光 板的连接面对齐抵靠，使得每相邻两个子导光板的入光面共同形成凹槽。
所述入光面为斜面，所述凹槽的横截面呈倒 "V" 形。
底板的凸包的横截面呈倒 "V"形，该凸包包括相对设置的第一、第二 斜面，所述两背光源分别安装于所述第一、 第二斜面上。
所述凸包的顶角 Φ大于 90° ,所述第一与第二斜面分别与与其相对的入 光面平行。
所述子导光板采用注塑一体成型、 或滚压成型后再裁切的方式制作。 所述子导光板的底面上设有数个网点。
所述背光源为 LED灯条。
所述 LED灯条采用 SMD方式或 COB方式。
所述的背光模组结构，还包括设于导光板上的光学膜片组、 及于导光 板上方设于背板侧板上的胶框。
本发明的有益效果：本发明的一种背光模组结构，其导光板包括依次 连接的至少两个子导光板，并于相邻两个子导光板的连接处形成一凹槽， 在背板底板上对应该凹槽设置凸包，将至少两背光源分别安装于所述凸包 上，且容置于所述凹槽与凸包之间，不仅能够满足导光板尺寸大型化的要 求，还可以更好的实现动态调光，节省能耗，提升光学品质。
为了能更进一步了解本发明的特征以及技术内容，请参阅以下有关本 发明的详细说明与附图，然而附图仅提供参考与说明用，并非用来对本发 明加以限制。 附图说明
下面结合附图，通过对本发明的具体实施方式详细描述，将使本发明 的技术方案及其它有益效果显而易见。
附图中，
图 1为一种现有的侧入式背光模组结构的示意图；
图 2为本发明背光模组结构的示意图；
图 3为本发明背光模组结构的子导光板的示意图；
图 4为本发明背光模组结构的导光板的示意图；
图 5为本发明背光模组结构的背板底板的示意图；
图 ό为本发明背光模组结构的背板底板上安装 LED光源的示意图； 图 7为本发明背光模组结构的背板底板、 LED光源与导光板的配合示 意图。 具体实施方式
为更进一步阐述本发明所采取的技术手段及其效果，以下结合本发明 的优选实施例及其附图进行详细描述。
请参阅图 2至图 7 ,本发明提供一种背光模组结构。该背光模组结构包 括背板 1、 设于背板 1内的导光板 3、 设于背板 1内的至少两背光源 5。 所述背板 1包括底板 11及与底板 11垂直连接的数个侧板 13。 该背板 可由铝钣金制成。
重点需要说明的是 ,所述导光板 3包括依次连接的至少两个子导光板 4 , 于相邻两个子导光板 4的连接处形成一凹槽 33 ,该凹槽 33的开口朝向底板 11 ,所述底板 11对应该凹槽 33设置一凸包 111 ,所述至少两背光源 5分别 安装于所述凸包 111上，且容置于所述凹槽 33与凸包 111之间，所述背光 源 5分别朝向该相邻两个子导光板 4发光。
在实际生产中，可依照设计需要来连接相当数量的子导光板 4 ,以得到 较大尺寸的导光板 3 ,满足导光板尺寸大型化的要求。 请参阅图 2、 图 3、 图 4、 图 7 ,本发明以导光板 3由三个子导光板 4依次连接而成为例，每一 子导光板 4对应连接处设有一垂直于子导光板 4顶面的连接面 411、及连接 于该连接面 411并朝向子导光板 4内部凹陷的入光面 413。每相邻两个子导 光板 4的连接面 411对齐抵靠，每相邻两个子导光板 4的入光面 413共同 形成凹槽 33 ,实现该相邻两个子导光板 4的连接。
具体的，所述入光面 413可为斜面或弧面，相应的，所述凹槽 33的横 截面呈倒 "V" 形或倒 "U" 形，优选的，所述入光面 413为斜面，所述凹 槽 33的横截面呈倒 "V" 形。
值得一提的是，所述子导光板 4的底面上还设有数个网点 6。所述数个 网点 6能够对光进行扩散，调整光线分布，使光线更均匀，其形状可为半 圆形、 半椭圆形、 三棱锥形、 四棱锥形或金字塔形等。
所述子导光板 4可采用注塑方式一体成型，也可采用滚压成型多个子 导光板 4 ,之后再裁切成若干单个子导光板 4的方式制作。
请参阅图 5、 图 6、 图 7 ,对应于上述横截面呈倒 "V" 形的凹槽 33 , 底板 11上所设置的凸包 111的横截面也呈倒 "V" 形，且所述凸包 111的 高度小于所述凹槽 33的深度，从而所述凸包 111与凹槽 33之间存在一定 的空间，能够容置所述背光源 5。所述凸包 111包括相对设置的第一、第二 斜面 112、 113 ,且第一与第二斜面 112、 113分别与与其相对的入光面 413 平行，所述两背光源 5分别安装于所述第一、 第二斜面 112、 113上，并容 置于所述凸包 111与凹槽 33之间。 此种结构一方面能够提高耦光效率和光 利用率，降低光损失，避免液晶显示装置边缘漏光的问题，更好的实现动 态调光，提升光学品质，一方面背光源 5直接安装于背板 1的底板 11上， 利于散热。
进一步的，所述凸包 111的顶角 Φ大于 90° ,避免所述凸包 111的高度 过大，利于液晶显示装置的薄型化。
所述背光源 5为 LED灯条。 具体的，所述 LED灯条可采用表面贴装 ( Surface Mounted Devices , SMD )方式或板上芯片封装 ( Chip On Board , COB )方式。
所述背光模组结构还包括设于导光板 3上的光学膜片组 9、及于导光板 3上方设于背板 1侧板 13上的胶框 7。
综上所述，本发明的一种背光模组结构，其导光板包括依次连接的至 少两个子导光板，并于相邻两个子导光板的连接处形成一凹槽，在背板底 板上对应该凹槽设置凸包，将至少两背光源分别安装于所述凸包上，且容 置于所述凹槽与凸包之间，不仅能够满足导光板尺寸大型化的要求，还可 以更好的实现动态调光，节省能耗，提升光学品质，且结构较简单，易实 现。
以上所述，对于本领域的普通技术人员来说，可以根据本发明的技术 方案和技术构思作出其他各种相应的改变和变形，而所有这些改变和变形 都应属于本发明权利要求的保护范围。

Claims

杈 利 要 求
1、 一种背光模组结构，包括背板、 设于背板内的导光板、 设于背板内 的至少两背光源，所述背板包括底板及与底板垂直连接的数个侧板，所述 导光板包括依次连接的至少两个子导光板，于相邻两个子导光板的连接处 形成一凹槽，该凹槽的开口朝向底板，所述底板对应该凹槽设置一凸包， 两背光源分别安装于所述凸包上，且容置于所述凹槽与凸包之间，所述两 背光源分别朝向该相邻两个子导光板发光。
2、 如权利要求 1所述的背光模组结构，其中，所述每一子导光板对应 连接处设有一垂直于子导光板顶面的连接面、 及连接于该连接面并朝向子 导光板内部凹陷的入光面；每相邻两个子导光板的连接面对齐抵靠，每相 邻两个子导光板的入光面共同形成凹槽。
3、 如权利要求 2所述的背光模组结构，其中，所述入光面为斜面，所 述凹槽的横截面呈倒 "V" 形。
4、 如权利要求 3所述的背光模组结构，其中，底板的凸包的横截面呈 倒 "V"形，该凸包包括相对设置的第一、 第二斜面，所述两背光源分别安 装于所述第一、 第二斜面上。
5、 如权利要求 4所述的背光模组结构，其中，所述凸包的顶角 Φ大于 90° ,所述第一与第二斜面分别与与其相对的入光面平行。
6、 如权利要求 1所述的背光模组结构，其中，所述子导光板采用注塑 —体成型、 或滚压成型后再裁切的方式制作。
7、 如权利要求 6所述的背光模组结构，其中，所述子导光板的底面上 设有数个网点。
8、 如权利要求 1所述的背光模组结构，其中，所述背光源为 LED灯 条。
9、如权利要求 8所述的背光模组结构，其中，所述 LED灯条采用 SMD 方式或 COB方式。
10、 如权利要求 1所述的背光模组结构，还包括设于导光板上的光学 膜片组、 及于导光板上方设于背板侧板上的胶框。
11、 一种背光模组结构，包括背板、 设于背板内的导光板、 设于背板 内的至少两背光源，所述背板包括底板及与底板垂直连接的数个侧板，所 述导光板包括依次连接的至少两个子导光板，于相邻两个子导光板的连接 处形成一凹槽，该凹槽的开口朝向底板，所述底板对应该凹槽设置一凸包， 两背光源分别安装于所述凸包上，且容置于所述凹槽与凸包之间，所述两 背光源分别朝向该相邻两个子导光板发光； 其中，所述每一子导光板对应连接处设有一垂直于子导光板顶面的连 接面、 及连接于该连接面并朝向子导光板内部凹陷的入光面；每相邻两个 子导光板的连接面对齐抵靠，每相邻两个子导光板的入光面共同形成凹槽； 其中，所述入光面为斜面，所述凹槽的横截面呈倒 "V" 形；
其中，底板的凸包的横截面呈倒 "V"形，该凸包包括相对设置的第一、 第二斜面，所述两背光源分别安装于所述第一、 第二斜面上；
其中，所述凸包的顶角 Φ大于 90° ,所述第一与第二斜面分别与与其相 对的入光面平行；
其中，所述子导光板采用注塑一体成型、 或滚压成型后再裁切的方式 制作；
其中，所述子导光板的底面上设有数个网点；
其中，所述背光源为 LED灯条；
其中，所述 LED灯条采用 SMD方式或 COB方式；
所述的背光模组结构，还包括设于导光板上的光学膜片组、 及于导光 板上方设于背板侧板上的胶框。
PCT/CN2014/084458 2014-08-06 2014-08-15 背光模组结构 Ceased WO2016019596A1 (zh)

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