WO2016090717A1 - 一种导光板、背光模组及窄边框显示装置 - Google Patents

一种导光板、背光模组及窄边框显示装置 Download PDF

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Publication number
WO2016090717A1
WO2016090717A1 PCT/CN2015/070126 CN2015070126W WO2016090717A1 WO 2016090717 A1 WO2016090717 A1 WO 2016090717A1 CN 2015070126 W CN2015070126 W CN 2015070126W WO 2016090717 A1 WO2016090717 A1 WO 2016090717A1
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WO
WIPO (PCT)
Prior art keywords
guide plate
light guide
light
groove
receiving groove
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PCT/CN2015/070126
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English (en)
French (fr)
Inventor
张彦学
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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 US14/425,006 priority Critical patent/US20160341871A1/en
Publication of WO2016090717A1 publication Critical patent/WO2016090717A1/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
    • G02B6/0015—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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21K—NON-ELECTRIC LIGHT SOURCES USING LUMINESCENCE; LIGHT SOURCES USING ELECTROCHEMILUMINESCENCE; LIGHT SOURCES USING CHARGES OF COMBUSTIBLE MATERIAL; LIGHT SOURCES USING SEMICONDUCTOR DEVICES AS LIGHT-GENERATING ELEMENTS; LIGHT SOURCES NOT OTHERWISE PROVIDED FOR
    • F21K9/00—Light sources using semiconductor devices as light-generating elements, e.g. using light-emitting diodes [LED] or lasers
    • F21K9/20—Light sources comprising attachment means
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21S—NON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S8/00—Lighting devices intended for fixed installation
    • F21S8/03—Lighting devices intended for fixed installation of surface-mounted type
    • 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
    • G02B6/0081—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
    • 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
    • G02F1/133602—Direct backlight
    • G02F1/133603—Direct backlight with LEDs
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21Y—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2101/00—Point-like 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
    • G02B6/0033—Means for improving the coupling-out of light from the light guide
    • G02B6/005—Means for improving the coupling-out of light from the light guide provided by one optical element, or plurality thereof, placed on the light output side of the light guide
    • G02B6/0053—Prismatic sheet or layer; Brightness enhancement element, sheet or layer
    • 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
    • G02B6/0033—Means for improving the coupling-out of light from the light guide
    • G02B6/005—Means for improving the coupling-out of light from the light guide provided by one optical element, or plurality thereof, placed on the light output side of the light guide
    • G02B6/0055—Reflecting element, sheet or layer
    • 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

Definitions

  • the present invention relates to the field of display technologies, and in particular, to a light guide plate, a backlight module, and a narrow bezel display device.
  • the display device is usually composed of a display panel, an optical film, a double-sided tape, a light source, a light guide plate, a plastic frame, a reflection sheet and an iron frame, and the display panel, the optical film, the light guide plate and the reflection sheet are in turn
  • the cascading arrangement is accommodated in the plastic frame and disposed on the iron frame, and the display panel is fixed on the optical film and the plastic frame by double-sided tape.
  • the present invention provides a light guide plate, a backlight module and a narrow bezel display device, which can ensure the compact structure of the backlight module and the display device and improve the overall structure of the product without the iron frame. Strength and reliability.
  • a light guide plate includes a light emitting surface and a bottom surface; the light incident end of the light guide plate corresponds to the light source assembly, and the light exit surface of the light entrance end of the light guide plate is provided with a long groove, and the long groove is along the width of the light guide plate The direction is opened to accommodate the light source assembly.
  • the light-emitting surface of the light guide plate is provided with a first receiving groove for mounting the optical film assembly adjacent to the long groove.
  • the side wall of the first receiving groove adjacent to the long groove is a reflecting surface, and the angle between the side wall and the bottom surface of the first receiving groove is an obtuse angle.
  • the second accommodating groove for mounting the reflective sheet is opened on the bottom surface of the light guide plate.
  • the long slot is in communication with the second receiving slot.
  • the invention also provides a backlight module, comprising a light guide plate, an optical film assembly, a reflection sheet and a light source assembly, the light-emitting surface of the light guide plate is provided with a long groove, and the light source assembly is "T"-shaped, including horizontal And a vertical portion in which a plurality of LEDs are mounted, the vertical portion being inserted into the elongated slot, the horizontal portion covering the elongated slot and abutting against an upper surface of the light guide plate.
  • the light-emitting surface of the light guide plate is provided with a first accommodating groove for mounting the optical film assembly adjacent to the long groove, and the optical film assembly is disposed in the first accommodating groove .
  • the second accommodating groove is defined in the other surface of the light guide plate opposite to the light emitting surface, and the reflective sheet is disposed in the second accommodating groove.
  • the side wall of the first receiving groove adjacent to the long groove is a reflecting surface, and the angle between the side wall and the bottom surface of the first receiving groove is an obtuse angle.
  • the present invention also provides a narrow bezel display device comprising a display panel and a backlight module as described above, the height of the first receiving groove being the same as the thickness of the optical film assembly, the display panel Adhering to one side of the horizontal portion of the light guide plate and pasting on a light-emitting surface of the light guide plate.
  • the light source assembly can be compactly mounted on the light guide plate by opening a long groove for mounting the light source assembly at one end of the light-emitting surface of the light guide plate, and the backlight module and the display device can be maintained without the iron frame.
  • the compactness of the product increases the overall structural strength and reliability of the product.
  • FIG. 1 is a schematic structural view of a light-emitting surface of a light guide plate according to Embodiment 1 of the present invention.
  • FIG. 2 is a schematic structural view of another surface of a light guide plate according to Embodiment 1 of the present invention.
  • FIG. 3 is a partial structural diagram of a backlight module according to Embodiment 2 of the present invention.
  • FIG. 4 is a partial schematic structural view of a display device according to Embodiment 3 of the present invention.
  • the light guide plate 10 of the embodiment of the present invention includes a light-emitting surface and a bottom surface, wherein the light-guiding plate 10 has an entrance end, and a long groove is formed on the light-emitting surface of the light guide plate 10 adjacent to the light-incident end. 13.
  • the long groove 13 is opened along the width direction of the light guide plate 10 for accommodating the light source assembly.
  • the first accommodating groove 11 for mounting the optical film assembly adjacent to the long groove 13 is also formed on the light-emitting surface of the light guide plate 10.
  • the side wall 14 of the first accommodating groove 11 adjacent to the long groove 13 is a reflecting surface, and the side wall 14 and the bottom surface of the first accommodating groove 11 are at an obtuse angle.
  • the light emitted by the light source assembly is partially emitted to the side wall 14 and reflected back to the inside of the light guide plate 10, thereby avoiding the light leakage at the side wall 14 and causing local highlighting of the display panel and light pollution, and improving the light. Utilization rate.
  • a second accommodating groove 12 for mounting a reflection sheet is further disposed on the bottom surface of the light guide plate 10.
  • the long groove 13 and the second accommodating groove 12 are communicated with each other.
  • the light source assembly can be compactly mounted on the light guide plate 10 by opening a long groove for mounting the light source assembly on the light-emitting surface of the light guide plate near the light-incident end; at the same time, the light-emitting surface is further provided with mounting optical
  • the first accommodating groove 11 of the diaphragm assembly is further provided with a second accommodating groove 12 for mounting the reflective sheet on the bottom surface of the light guide plate 10, and the light source assembly and the optical unit are used by using the light guide plate 10 without the iron frame.
  • the integrated design of the diaphragm assembly and the reflective sheet provides high space utilization and a more compact product structure, which improves the overall structural strength and reliability of the product.
  • the present embodiment provides a backlight module including the light guide plate 10, the optical film assembly 30, the reflection sheet 40, and the light source assembly 50, and the light-emitting surface of the light guide plate 10.
  • a long slot 13 is provided.
  • the light source assembly 50 has a "T" shape and includes a horizontal portion 50a and a vertical portion 50b on which a plurality of LEDs are mounted. The vertical portion 50b is inserted into the long slot 13 and the horizontal portion 50a covers the long slot. 13 is adhered to the upper surface of the light guide plate 10.
  • the vertical portion 50b of the light source assembly 50 is disposed in the receiving slot 13 and the optical diaphragm assembly 30 is a multi-layer diaphragm structure disposed in the first receiving slot 11.
  • the reflection sheet 40 is mounted in the second accommodating groove 12 for reflecting the light incident on the bottom surface of the light guide plate 10 to the light exit surface.
  • the long slot 13 is in communication with the second receiving slot 12, and the vertical portion 50b of the light source assembly 50 in which the plurality of LEDs are mounted is located in the elongated slot 13, and the bottom surface of the vertical portion 50b abuts on the reflective sheet 40. Upper surface.
  • the vertical portion 50b By covering the horizontal portion 50a of the light source unit 50 with the long groove 13 and abutting against the upper surface of the light guide plate 10, the vertical portion 50b abuts against the upper surface of the reflection sheet 40, so that the fixing of the light source unit 50 is firmer. reliable.
  • the lower end of the vertical portion 50b can also be suspended without contacting the reflective sheet 40, or the long slot 13 and the second receiving slot 12 are not in communication, and the lower end of the vertical portion 50b abuts the long slot 13 Bottom surface.
  • the backlight module of the embodiment uses the light guide plate 10 to integrate the light source assembly, the optical film assembly 30 and the reflection sheet 40, has high space utilization rate, and the product structure is more compact, thereby improving the overall structural strength and reliability of the product.
  • an embodiment of the present invention provides a narrow bezel display device, including a display panel 20 and a backlight module as described in Embodiment 2.
  • the display panel 20 is a liquid crystal panel.
  • the height of the groove 11 is the same as the thickness of the optical film assembly 30.
  • the edge of the upper surface of the light-incident surface of the light guide plate 10 is provided with an adhesive layer (not shown), and the display panel 20 is in close contact with the horizontal portion 50a of the light guide plate 10. One side is attached to the light-emitting surface of the light guide plate 10.
  • the display panel 20 and the horizontal portion 50a of the light source assembly 50 are mounted on the same horizontal surface and abut each other, the light source assembly 50 is in close contact with the light guide plate 10, and the reflective sheet is embedded in the lower end of the light guide plate 10, which is an embodiment of the present invention.
  • the utility model has the advantages of compact structure, fully utilizing the light guide plate 10 to combine other structures of the display device, high space utilization rate, and large structural strength of the product; meanwhile, the frame of the display device is narrower because the structure of the iron frame and the plastic frame is omitted.

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

Abstract

一种导光板（10），包括出光面及底面，导光板（10）一侧的入光端与光源组件(50)对应，导光板（10）的入光端一侧的出光面上开设有长槽(13)，长槽(13) 沿导光板（10）的宽度方向开设，用于容纳光源组件(50)。一种背光模组，包括导光板(10)、光学膜片组件(30)、反射片(40)和光源组件(50)，导光板(10)的出光面设有长槽(13)，光源组件(50)为"T"形，包括水平部分(50a)和安装有多颗LED的竖直部分(50b)，竖直部分(50b)插设于所述长槽(13)内，水平部分 (50a)盖住长槽(13)并紧贴导光板(10)的上表面。

Description

一种导光板、背光模组及窄边框显示装置 技术领域
本发明涉及显示技术领域，尤其涉及一种导光板、背光模组及窄边框显示装置。
背景技术
在现有的产品中，显示装置通常由显示面板、光学膜片、双面胶、光源、导光板、胶框、反射片及铁框组成，显示面板、光学膜片、导光板、反射片依次层叠设置，容纳于胶框中并设置在铁框上，显示面板通过双面胶固定在光学膜片、胶框上。
随着移动通讯产品的发展，产品的高性价比设计成为设计的重要方向之一。现有设计中很多厂家为了节约成本，在显示模组中取消了铁框的结构，但是显示装置的整体结构强度因此大幅降低，产品质量的可靠性不能保证。
发明内容
鉴于现有技术存在的不足，本发明提供了一种导光板、背光模组及窄边框显示装置，在没有铁框的条件下仍能保证背光模组和显示装置结构紧凑、提高产品的整体结构强度以及可靠性。
为了实现上述的目的，本发明采用了如下的技术方案：
一种导光板，包括出光面及底面，导光板一侧的入光端与光源组件对应，导光板的入光端一侧的出光面上开设有长槽，所述长槽沿导光板的宽度方向开设，用于容纳光源组件。
其中，导光板的出光面上开设有与所述长槽相邻的用于安装光学膜片组件的第一容置槽。
其中，所述第一容置槽靠近所述长槽的侧壁为反射面，且所述侧壁与所述第一容置槽的底面夹角为钝角。
其中，导光板底面开设有用于安装反射片的第二容置槽。
其中，所述长槽与所述第二容置槽连通。
本发明还提供了一种背光模组，包括导光板、光学膜片组件、反射片和光源组件，所述导光板的出光面设有长槽，所述光源组件为“T”形，包括水平部分和安装有多颗LED的竖直部分，所述竖直部分插设于所述长槽内，所述水平部分盖住所述长槽并紧贴所述导光板的上表面。
其中，所述导光板的出光面上开设有与所述长槽相邻的用于安装光学膜片组件的第一容置槽，所述光学膜片组件设于所述第一容置槽内。
其中，所述导光板上与出光面相对的另一面开设有第二容置槽，所述反射片设于所述第二容置槽内。
其中，所述第一容置槽靠近所述长槽的侧壁为反射面，且所述侧壁与所述第一容置槽的底面夹角为钝角。
另外，本发明还提供了一种窄边框显示装置，包括显示面板和如上所述的背光模组，所述第一容置槽的高度与所述光学膜片组件的厚度相同，所述显示面板紧贴所述导光板的所述水平部分的一侧并粘贴于所述导光板的出光面上。
本发明通过在导光板的出光面的一端开设有用于安装光源组件的长槽，可以将光源组件紧凑地安装在导光板上，在没有铁框的条件下仍能保持背光模组和显示装置的结构紧凑性，提高了产品的整体结构强度和可靠性。
附图说明
图1为本发明实施例1的导光板的出光面的结构示意图。
图2为本发明实施例1的导光板的另一面的结构示意图。
图3为本发明实施例2的背光模组的部分结构示意图。
图4为本发明实施例3的显示装置的部分结构示意图。
具体实施方式
为了使本发明的目的、技术方案及优点更加清楚明白，以下结合附图及实施例，对本发明进一步详细说明。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。
实施例1
如图1所示，本发明实施例的导光板10包括出光面及底面，其中导光板10一侧的为入光端，导光板10上靠近入光端一侧的出光面上开设有长槽13。长槽13沿导光板10的宽度方向开设，用于容纳光源组件。
导光板10的出光面上还开设有与长槽13相邻的用于安装光学膜片组件的第一容置槽11。
第一容置槽11靠近长槽13的侧壁14为反射面，且侧壁14与第一容置槽11的底面夹角为钝角。通过这样的设计，光源组件发出的光线部分射出到该侧壁14后反射回导光板10内部，避免了该侧壁14处的光泄露造成显示面板的局部高亮以及光污染，同时提高了光线的利用率。
如图2所示，在导光板10的底面还开设有用于安装反射片的第二容置槽12，本实施例中，长槽13与第二容置槽12连通设置。
本实施例通过在导光板的出光面上靠近入光端的一端开设有用于安装光源组件的长槽，可以将光源组件紧凑地安装在导光板10上；同时，出光面上还开设有用于安装光学膜片组件的第一容置槽11、在导光板10的底面还开设有用于安装反射片的第二容置槽12，在没有铁框的条件下，通过利用导光板10将光源组件、光学膜片组件和反射片集成设计，空间利用率高、产品结构更加紧凑，提高了产品的整体结构强度和可靠性。
实施例2
结合图1-图3，本实施例提供了一种背光模组，包括如实施例1所述的导光板10、光学膜片组件30、反射片40和光源组件50，导光板10的出光面设有长槽13，光源组件50为“T”形，包括水平部分50a和安装有多颗LED的竖直部分50b，竖直部分50b插设于长槽13内，水平部分50a盖住长槽13并紧贴导光板10的上表面。
具体地，光源组件50的竖直部分50b设于容纳长槽13内，光学膜片组件30为多层膜片结构，设于第一容置槽11内。反射片40安装于第二容置槽12内，用于反射射入导光板10底面的光线至出光面。
本实施例中，长槽13与第二容置槽12连通，光源组件50安装有多颗LED的竖直部分50b位于长槽13内，且该竖直部分50b的底面抵接在反射片40上表面。通过将光源组件50的水平部分50a盖住长槽13并紧贴导光板10的上表面，竖直部分50b抵接在反射片40上表面，使得光源组件50的固定更加牢固 可靠。可以理解的是，该竖直部分50b的下端也可以悬空而不与反射片40接触，或者长槽13与第二容置槽12不连通，该竖直部分50b的下端抵接长槽13的底面。
本实施例的背光模组利用导光板10将光源组件、光学膜片组件30和反射片40集成设计，空间利用率高、产品结构更加紧凑，提高了产品的整体结构强度和可靠性。
实施例3
进一步结合图4，本发明实施例提供了一种窄边框显示装置，包括显示面板20和如实施例2所述的背光模组，这里，显示面板20为液晶面板，本实施例的第一容置槽11的高度与光学膜片组件30的厚度相同，导光板10的入光面一面的上表面的边缘设有粘贴层(图未示)，显示面板20紧贴导光板10的水平部分50a的一侧并粘贴于导光板10的出光面上。通过这样的设置，显示面板20与光源组件50的水平部分50a安装于同一水平面上且相互紧靠，光源组件50与导光板10紧密接触，反射片嵌入导光板10的下端，本发明实施例的结构紧凑，充分地利用导光板10将显示装置的其它结构结合起来，空间利用率高，产品的结构强度大；同时，由于省去了铁框和胶框等结构，显示装置的边框更窄。
以上所述仅是本申请的具体实施方式，应当指出，对于本技术领域的普通技术人员来说，在不脱离本申请原理的前提下，还可以做出若干改进和润饰，这些改进和润饰也应视为本申请的保护范围。

Claims (17)

  1. 一种导光板，包括出光面及底面，导光板一侧的入光端与光源组件对应，其中，导光板的入光端一侧的出光面上开设有长槽，所述长槽沿导光板的宽度方向开设，用于容纳光源组件。
  2. 根据权利要求1所述的导光板，其中，导光板的出光面上开设有与所述长槽相邻的用于安装光学膜片组件的第一容置槽。
  3. 根据权利要求2所述的导光板，其中，所述第一容置槽靠近所述长槽的侧壁为反射面，且所述侧壁与所述第一容置槽的底面夹角为钝角。
  4. 根据权利要求1所述的导光板，其中，导光板的底面开设有用于安装反射片的第二容置槽。
  5. 根据权利要求4所述的导光板，其中，所述长槽与所述第二容置槽连通。
  6. 根据权利要求2所述的导光板，其中，导光板的底面开设有用于安装反射片的第二容置槽。
  7. 根据权利要求6所述的导光板，其中，所述长槽与所述第二容置槽连通。
  8. 根据权利要求3所述的导光板，其中，导光板的底面开设有用于安装反射片的第二容置槽。
  9. 根据权利要求8所述的导光板，其中，所述长槽与所述第二容置槽连通。
  10. 一种背光模组，其中，包括导光板、光学膜片组件、反射片和光源组件，所述导光板的出光面设有长槽，所述光源组件为“T”形，包括水平部分和安装有多颗LED的竖直部分，所述竖直部分插设于所述长槽内，所述水平部分盖住所述长槽并紧贴所述导光板的上表面。
  11. 根据权利要求10所述的背光模组，其中，所述导光板的出光面上开设有与所述长槽相邻的用于安装光学膜片组件的第一容置槽，所述光学膜片组件设于所述第一容置槽内。
  12. 根据权利要求11所述的背光模组，其中，所述导光板上与出光面相对的另一面开设有第二容置槽，所述反射片设于所述第二容置槽内。
  13. 根据权利要求12所述的背光模组，其中，所述第一容置槽靠近所述长槽的侧壁为反射面，且所述侧壁与所述第一容置槽的底面夹角为钝角。
  14. 一种窄边框显示装置，其中，包括显示面板和权利要求10所述的背光模组，所述第一容置槽的高度与所述光学膜片组件的厚度相同，所述显示面板紧贴所述导光板的所述水平部分的一侧并粘贴于所述导光板的出光面上。
  15. 根据权利要求14所述的窄边框显示装置，其中，所述导光板的出光面上开设有与所述长槽相邻的用于安装光学膜片组件的第一容置槽，所述光学膜片组件设于所述第一容置槽内。
  16. 根据权利要求15所述的窄边框显示装置，其中，所述导光板上与出光面相对的另一面开设有第二容置槽，所述反射片设于所述第二容置槽内。
  17. 根据权利要求16所述的窄边框显示装置，其中，所述第一容置槽靠近所述长槽的侧壁为反射面，且所述侧壁与所述第一容置槽的底面夹角为钝角。
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