WO2016183854A1 - 背光单元及显示装置 - Google Patents

背光单元及显示装置 Download PDF

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Publication number
WO2016183854A1
WO2016183854A1 PCT/CN2015/079590 CN2015079590W WO2016183854A1 WO 2016183854 A1 WO2016183854 A1 WO 2016183854A1 CN 2015079590 W CN2015079590 W CN 2015079590W WO 2016183854 A1 WO2016183854 A1 WO 2016183854A1
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WIPO (PCT)
Prior art keywords
guide plate
light guide
backlight unit
display device
led chips
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PCT/CN2015/079590
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English (en)
French (fr)
Inventor
张彦学
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武汉华星光电技术有限公司
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Application filed by 武汉华星光电技术有限公司 filed Critical 武汉华星光电技术有限公司
Priority to US14/768,294 priority Critical patent/US20170139103A1/en
Publication of WO2016183854A1 publication Critical patent/WO2016183854A1/zh

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    • 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
    • G02B6/0003—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 doped with fluorescent agents
    • 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
    • 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
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/133602—Direct backlight
    • G02F1/133603—Direct backlight with LEDs
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/133602—Direct backlight
    • G02F1/133608—Direct backlight including particular frames or supporting means
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0066—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
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G02F1/133614—Illuminating devices using photoluminescence, e.g. phosphors illuminated by UV or blue light

Definitions

  • the present invention relates to the field of backlight display technologies, and in particular, to a backlight unit and a display device.
  • the conventional side-in display device mainly consists of a liquid crystal panel, an optical film, a light guide plate, and an LED (Light-Emitting Diode) light source.
  • the LED light source is formed by a plurality of LED lamp beads on the substrate to form an easily fixed light bar.
  • the light bar is disposed on the light incident side of the light guide plate and is positioned by the substrate.
  • the light distribution plate is close to the light-incident side and the light distribution of the light bar is improperly designed, the light leakage or the light coupling efficiency is low.
  • the thickness of the light bar always becomes a factor affecting the width of the frame of the display device.
  • the present invention provides a backlight unit and a display device that improve coupling efficiency, effectively reduce frame width and manufacturing cost of a display device.
  • a backlight unit includes a plurality of LED chips, a light guide plate and an optical film set
  • the light guide plate includes a light guide plate body, and a groove is formed on an end surface of the light guide plate body adjacent to the light incident side, and the plurality of LED chips are Electrically connected and encapsulated within the recess.
  • the number of the grooves is the same as the number of the LED chips, and one of the LED chips is disposed in each of the grooves.
  • the recess is one, and a plurality of the LED chips are spaced apart in the recess.
  • the plurality of grooves are plural, and each of the grooves is provided with a plurality of the LED chips.
  • the plurality of grooves are parallel and spaced apart.
  • the end surface of the light guide plate main body adjacent to the light incident side is provided with an insulating layer.
  • the surface of the groove is coated with a phosphor.
  • the present invention also provides a display device comprising a display panel and the above-described backlight unit, the display panel being disposed on the optical film set.
  • the display device further includes a backboard, and the backlight unit is disposed on the backboard.
  • the display device further includes a frame, and the frame is in close contact with the light guide plate on the light-incident side.
  • the invention encloses the light guide plate and the LED chip together, so that the structure of the backlight unit and the display device using the light guide plate is more compact, and the coupling efficiency of the product is greatly improved.
  • the substrate for fixing the LED chip is omitted, the manufacturing cost is Further reduction, the display device frame size is further reduced.
  • phosphor powder is coated in the LED chip package groove of the light guide plate to ensure the display effect of the display device.
  • FIG. 1 is a cross-sectional structural view showing a display device according to Embodiment 1 of the present invention.
  • FIG. 2 is a schematic structural view of a light incident side of a display device according to Embodiment 1 of the present invention.
  • FIG 3 is a schematic structural view of a light incident side of a display device according to Embodiment 2 of the present invention.
  • FIG. 4 is a schematic structural view of a light incident side of a display device according to Embodiment 3 of the present invention.
  • the display device of the present invention includes a display panel 30 , a back panel 40 , a bezel 50 , and a backlight unit (not labeled).
  • the backlight unit is disposed on the back panel 40
  • the display panel 30 is disposed on the top surface of the backlight unit and emits light.
  • the faces are oppositely disposed, and the periphery of the bottom surface is disposed on the upper surface of the frame 50 and supported by the frame 50.
  • the frame 50 is a frame structure, and may be a plastic frame or an iron frame.
  • the backlight unit is disposed in the frame 50.
  • the frame 50 can protect the backlight unit accommodated therein and fix the structure to a certain extent, so that the overall structure is more compact and reliable.
  • the bezel 50 of the present embodiment is carried on the backboard 40. It can be understood that in other embodiments, the backplane 40 can also be accommodated in the bezel 50 or the backplane 40 and the bezel 50 can be eliminated.
  • the backlight unit includes a plurality of LED chips 1, a light guide plate 10, and an optical film group 20, and the light guide plate 10 includes a light guide plate main body 11.
  • the light guide plate main body 11 is provided with a groove 12 near the light incident side end surface.
  • the surface of the recess 12 is coated with phosphor, and a plurality of LED chips 1 are electrically connected and packaged in the recess 12.
  • the epoxy resin is used for packaging, and the LED chip 1 is completely encapsulated in the recess 12, so that the end surface of the packaged light guide plate 10 is flat.
  • the angle between the bottom surface of the groove 12 and the side wall is an obtuse angle, and the angle is preferably in the range of 120° to 150°.
  • the optical film group 20 is composed of an upper diffusion sheet 21, a prism sheet 22, and a lower diffusion sheet 23 which are sequentially stacked from top to bottom.
  • the lower diffusion sheet 23 is disposed on the upper surface of the light guide plate 10, and the upper diffusion sheet 21 is disposed on the display panel 30.
  • the lower surface, specifically, the display panel 30 is adhered to the upper surface of the upper diffusion sheet 21 and the frame 50 by the light-shielding glue S on both sides, and the light-shielding glue S can also prevent light leakage on both sides.
  • the light emitted from the LED chip 1 is scattered by the light guide plate 10, and then concentrated by the lower diffusion sheet 23 to be uniformly projected onto the prism sheet 22.
  • the upper diffusion sheet 21 atomizes the light emitted from the prism sheet 22 and uniformly emits it to provide the display panel 30. A uniform backlight.
  • the end surface of the light guide plate 10 in which the LED chip 1 is packaged is provided with an insulating layer 2 by coating or the like.
  • the number of the grooves 12 is the same as the number of the LED chips 1, and each of the grooves 12 is packaged.
  • the cathode and anode of each LED chip are electrically connected by two different wires K, respectively, for wiring.
  • the LED chip 1 is packaged in the corresponding recess 12 on the light-incident side of the light guide plate 10, and the LED chip 1 is electrically connected by the wire K, the end portion of the light guide plate 10 is omitted for fixing the LED chip.
  • the substrate or the flexible circuit board saves the manufacturing cost, improves the coupling efficiency, and reduces the width of the display device frame, so that the effective display area of the display panel 30 is larger.
  • the recess 12 of the embodiment is plural, and each of the recesses 12 is provided with a plurality of LED chips 1 .
  • the plurality of grooves 12 are arranged in parallel and spaced apart.
  • the wires K are electrically connected to the respective LED chips 1 and are led out to the same side for convenient wiring.

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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)
  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Planar Illumination Modules (AREA)
  • Led Device Packages (AREA)

Abstract

一种背光单元及具有该背光单元的显示装置，所述背光单元包括多颗LED芯片（1）、导光板（10）和光学膜片组（20），所述导光板（10）包括导光板主体（11），所述导光板主体（11）靠近入光侧的端面开设有凹槽（12），多颗所述LED芯片（1）电连接并封装于所述凹槽（12）内。将导光板（10）与LED芯片（1）封装在一起，使应用该导光板（10）的背光单元及显示装置的结构更加紧凑，并使得产品耦光效率大大提高，另外，由于省略了固定LED芯片（1）的基板，产品制造成本进一步降低，显示装置边框尺寸进一步缩小。同时，在导光板（10）的LED芯片（1）封装槽内涂覆有荧光粉，保证了显示装置的显示效果。

Description

背光单元及显示装置 技术领域
本发明涉及背光显示技术领域，尤其涉及一种背光单元及显示装置。
背景技术
随着消费电子产品的发展，高光效、低成本成为了产品设计的重要方向。为降低显示装置的厚度，一些显示器制造厂商往往选择采用侧入式背光方式，通常的侧入式显示装置主要由液晶面板、光学膜片、导光板、LED(Light-Emitting Diode，发光二极管)光源等组成，LED光源由多颗LED灯珠打件在基板上后形成易于固定的灯条，该灯条被设置在导光板的入光侧，利用基板进行定位。但是，此种设置方式如果导光板靠近入光侧一侧与灯条的配光设计不当很容易导致漏光或耦光效率低，同时，灯条的厚度始终成为影响显示装置边框宽度的因素。
发明内容
鉴于现有技术存在的不足，本发明提供了一种提高耦光效率、有效降低显示装置边框宽度及制造成本的背光单元及显示装置。
为了实现上述的目的，本发明采用了如下的技术方案：
一种背光单元，包括多颗LED芯片、导光板和光学膜片组，所述导光板包括导光板主体，所述导光板主体靠近入光侧的端面开设有凹槽，多颗所述LED芯片电连接并封装于所述凹槽内。
其中，所述凹槽数量与所述LED芯片数量相同，每个所述凹槽内设有一颗所述LED芯片。
或者，所述凹槽为一个，多颗所述LED芯片间隔设于所述凹槽内。
或者，所述凹槽为多个，每个所述凹槽内设有多颗所述LED芯片。
其中，多个所述凹槽平行并间隔设置。
其中，所述导光板主体靠近入光侧的端面设有绝缘层。
其中，所述凹槽表面涂覆有荧光粉。
本发明还提供了一种显示装置，包括显示面板和上述的背光单元，所述显示面板设于所述光学膜片组上。
其中，所述的显示装置还包括背板，所述背光单元设于所述背板上。
其中，所述的显示装置还包括边框，所述边框在入光侧一侧紧贴所述导光板。
本发明将导光板与LED芯片封装在一起，使应用该导光板的背光单元及显示装置的结构更加紧凑，并使得产品耦光效率大大提高，另外，由于省略了固定LED芯片的基板，制造成本进一步降低，显示装置边框尺寸进一步缩小。同时，在导光板的LED芯片封装槽内涂覆有荧光粉，保证了显示装置的显示效果。
附图说明
图1为本发明实施例1的显示装置的剖视结构示意图。
图2为本发明实施例1的显示装置的入光侧的结构示意图。
图3为本发明实施例2的显示装置的入光侧的结构示意图。
图4为本发明实施例3的显示装置的入光侧的结构示意图。
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
参阅图1，本发明的显示装置包括显示面板30、背板40、边框50和背光单元(图未标)，背光单元设置在背板40上，显示面板30设于背光单元顶面，与出光面相对设置，且其底面的四周设置在边框50上表面，由边框50进行支撑。边框50为框体结构，可以为胶框或铁框，背光单元设于该边框50内，边框50可对容纳于其中的背光单元起到保护和一定程度的固定作用，使整体构造更加紧凑可靠。本实施例的边框50承载于背板40上，可以理解的是，在其他实施例中，背板40也可以容纳于边框50内，或者取消背板40和边框50。
具体地，背光单元包括多颗LED芯片1、导光板10和光学膜片组20，导光板10包括导光板主体11，导光板主体11靠近入光侧的端面开设有凹槽12，同时，在凹槽12表面涂覆有荧光粉，多颗LED芯片1电连接并被封装于凹槽12内。本实施例采用环氧树脂进行封装，LED芯片1被完全封装于凹槽12内，使封装后的导光板10端面为平面。为提高光利用率，凹槽12底面与侧壁的夹角为钝角，该夹角范围在120°～150°为宜。
光学膜片组20由自上而下依次堆叠的上扩散片21、棱镜片22和下扩散片23组成，下扩散片23设于导光板10的上表面，上扩散片21设于显示面板30下表面，具体地，显示面板30通过两侧的遮光胶S粘贴于上扩散片21和边框50上表面，遮光胶S还可防止两侧的光泄露。LED芯片1发出的光通过导光板10散射，然后由下扩散片23集中起来均匀投射至棱镜片22上，上扩散片21将棱镜片22射出的光雾化后均匀射出，为显示面板30提供均匀的背光源。
同时结合图2，导光板10封装有LED芯片1的端面被采用涂覆等方式设有绝缘层2，本实施例中，凹槽12数量与LED芯片1数量相同，每个凹槽12内封装有一颗LED芯片1。每个LED芯片的阴极和阳极分别利用两根不同的导线K电连接后引出，以便接线。
由于将LED芯片1封装于导光板10的入光侧一侧的相应的凹槽12内，并利用导线K对LED芯片1进行电连接，省去了导光板10端部用于固定LED芯片的基板或柔性线路板，节省了制造成本，提高了耦光效率的同时减薄了显示装置边框的宽度，使得显示面板30的有效显示面积更大。
实施例2
如图3，与实施例1不同的是，本实施例的导光板主体11靠近入光侧的端面只开设了一个凹槽12，多颗LED芯片1间隔设于凹槽12内，虽然导光效率不如实施例1但与现有技术相比耦光效率仍能大幅提升。
实施例3
如图4，与实施例1不同的是，本实施例的凹槽12为多个，每个凹槽12内设有多颗LED芯片1。这里，多个凹槽12平行并间隔设置。导线K与各个LED芯片1电连接后被引出至同一侧方便接线。
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 (20)

  1. 一种背光单元，其中，包括多颗LED芯片、导光板和光学膜片组，所述导光板包括导光板主体，所述导光板主体靠近入光侧的端面开设有凹槽，多颗所述LED芯片电连接并封装于所述凹槽内。
  2. 根据权利要求1所述的背光单元，其中，所述凹槽数量与所述LED芯片数量相同，每个所述凹槽内设有一颗所述LED芯片。
  3. 根据权利要求1所述的背光单元，其中，所述凹槽为一个，多颗所述LED芯片间隔设于所述凹槽内。
  4. 根据权利要求1所述的背光单元，其中，所述凹槽为多个，每个所述凹槽内设有多颗所述LED芯片。
  5. 根据权利要求4所述的背光单元，其中，多个所述凹槽平行并间隔设置。
  6. 根据权利要求1所述的背光单元，其中，所述导光板主体靠近入光侧的端面设有绝缘层。
  7. 根据权利要求1所述的背光单元，其中，所述凹槽表面涂覆有荧光粉。
  8. 根据权利要求2所述的背光单元，其中，所述凹槽表面涂覆有荧光粉。
  9. 根据权利要求3所述的背光单元，其中，所述凹槽表面涂覆有荧光粉。
  10. 根据权利要求4所述的背光单元，其中，所述凹槽表面涂覆有荧光粉。
  11. 根据权利要求5所述的背光单元，其中，所述凹槽表面涂覆有荧光粉。
  12. 一种显示装置，其中，包括显示面板和背光单元，所述背光单元包括多颗LED芯片、导光板和光学膜片组，所述导光板包括导光板主体，所述导光板主体靠近入光侧的端面开设有凹槽，多颗所述LED芯片电连接并封装于所述凹槽内；所述显示面板设于所述光学膜片组上。
  13. 根据权利要求12所述的显示装置，其中，所述凹槽表面涂覆有荧光粉。
  14. 根据权利要求12所述的显示装置，其中，所述凹槽数量与所述LED芯片数量相同，每个所述凹槽内设有一颗所述LED芯片。
  15. 根据权利要求12所述的显示装置，其中，所述凹槽为一个，多颗所述LED芯片间隔设于所述凹槽内。
  16. 根据权利要求12所述的显示装置，其中，所述凹槽为多个，每个所述凹槽内设有多颗所述LED芯片。
  17. 根据权利要求16所述的显示装置，其中，多个所述凹槽平行并间隔设置。
  18. 根据权利要求12所述的显示装置，其中，所述导光板主体靠近入光侧的端面设有绝缘层。
  19. 根据权利要求12所述的显示装置，其中，还包括背板，所述背光单元设于所述背板上。
  20. 根据权利要求12所述的显示装置，其中，还包括边框，所述边框在入光侧一侧紧贴所述导光板。
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Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102494154B1 (ko) * 2015-12-31 2023-01-31 엘지디스플레이 주식회사 액정표시장치
CN105445849A (zh) 2016-01-04 2016-03-30 合肥京东方显示光源有限公司 一种导光板以及制作方法、背光模组和显示装置
CN106764567B (zh) * 2017-02-16 2023-04-07 汤江华 一种环形灯圈的制造方法及环形灯圈
CN106646725A (zh) * 2017-02-23 2017-05-10 康佳集团股份有限公司 一种侧入式背光模组及液晶电视
CN112175604B (zh) * 2019-07-04 2024-05-07 致晶科技（北京）有限公司 一种多层包覆结构的复合粉体以及制备方法、应用
CN110310569B (zh) * 2019-07-31 2021-07-06 Oppo广东移动通信有限公司 电子设备

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101660719A (zh) * 2008-08-29 2010-03-03 京东方科技集团股份有限公司 背光源模块
CN201487831U (zh) * 2009-09-08 2010-05-26 康佳集团股份有限公司 导光板及背光模组
CN102022662A (zh) * 2009-09-18 2011-04-20 北京京东方光电科技有限公司 背光模组及其制作方法
KR20110121248A (ko) * 2010-04-30 2011-11-07 희성전자 주식회사 직하형 백라이트 장치
CN102518988A (zh) * 2011-11-10 2012-06-27 友达光电股份有限公司 背光模块
CN103400921A (zh) * 2013-08-16 2013-11-20 苏州茂立光电科技有限公司 覆晶式发光二极管及其背光模块
CN104501050A (zh) * 2014-12-31 2015-04-08 深圳市华星光电技术有限公司 光源模块及具有该光源模块的背光模组

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4945436B2 (ja) * 2005-03-14 2012-06-06 株式会社東芝 白色発光ランプとそれを用いたバックライト、表示装置および照明装置
KR101249249B1 (ko) * 2005-12-29 2013-04-01 삼성디스플레이 주식회사 광 발생 모듈, 이이 제조 방법 및 이를 갖는 표시장치
KR100726548B1 (ko) * 2006-01-24 2007-06-11 엘지이노텍 주식회사 백라이트 유닛 및 이를 구비하는 액정표시장치
KR101251738B1 (ko) * 2011-03-22 2013-04-05 엘지이노텍 주식회사 표시장치
CN202955556U (zh) * 2012-03-09 2013-05-29 隆达电子股份有限公司 线性光源条灯结构
CN203082685U (zh) * 2012-12-17 2013-07-24 达运精密工业（厦门）有限公司 背光模组及具有该背光模组的显示装置
TWM464691U (zh) * 2013-06-28 2013-11-01 Unity Opto Technology Co Ltd 直下擺設而側入光源之背光模組
CN103411165B (zh) * 2013-08-21 2016-07-27 东莞勤上光电股份有限公司 一种出光均匀的侧光式背光模组
KR102130524B1 (ko) * 2013-08-28 2020-07-07 삼성디스플레이 주식회사 발광 소자 모듈, 이를 포함하는 백라이트 유닛 및 이를 포함하는 액정 표시 장치
CN104298002A (zh) * 2014-10-10 2015-01-21 京东方光科技有限公司 一种背光模组及显示装置
CN104503138A (zh) * 2014-12-31 2015-04-08 东莞市亚星半导体有限公司 一种入光可调的液晶显示屏

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101660719A (zh) * 2008-08-29 2010-03-03 京东方科技集团股份有限公司 背光源模块
CN201487831U (zh) * 2009-09-08 2010-05-26 康佳集团股份有限公司 导光板及背光模组
CN102022662A (zh) * 2009-09-18 2011-04-20 北京京东方光电科技有限公司 背光模组及其制作方法
KR20110121248A (ko) * 2010-04-30 2011-11-07 희성전자 주식회사 직하형 백라이트 장치
CN102518988A (zh) * 2011-11-10 2012-06-27 友达光电股份有限公司 背光模块
CN103400921A (zh) * 2013-08-16 2013-11-20 苏州茂立光电科技有限公司 覆晶式发光二极管及其背光模块
CN104501050A (zh) * 2014-12-31 2015-04-08 深圳市华星光电技术有限公司 光源模块及具有该光源模块的背光模组

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