WO2016061983A1 - 背光模组以及显示装置 - Google Patents

背光模组以及显示装置 Download PDF

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Publication number
WO2016061983A1
WO2016061983A1 PCT/CN2015/074267 CN2015074267W WO2016061983A1 WO 2016061983 A1 WO2016061983 A1 WO 2016061983A1 CN 2015074267 W CN2015074267 W CN 2015074267W WO 2016061983 A1 WO2016061983 A1 WO 2016061983A1
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WIPO (PCT)
Prior art keywords
substrate
backlight module
layer
display device
light source
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PCT/CN2015/074267
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English (en)
French (fr)
Inventor
朱琳
武延兵
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京东方科技集团股份有限公司
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Application filed by 京东方科技集团股份有限公司 filed Critical 京东方科技集团股份有限公司
Priority to US14/780,349 priority Critical patent/US20160327832A1/en
Priority to EP15763807.3A priority patent/EP3211476B1/en
Publication of WO2016061983A1 publication Critical patent/WO2016061983A1/zh

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    • 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
    • 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
    • G02F1/133382—Heating or cooling of liquid crystal cells other than for activation, e.g. circuits or arrangements for temperature control, stabilisation or uniform distribution over the cell
    • G02F1/133385—Heating or cooling of liquid crystal cells other than for activation, e.g. circuits or arrangements for temperature control, stabilisation or uniform distribution over the cell with cooling means, e.g. fans
    • 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
    • G02F1/133509—Filters, e.g. light shielding masks
    • G02F1/133514—Colour filters
    • 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
    • G02F1/133528—Polarisers
    • 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
    • G02F1/133553—Reflecting elements
    • 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
    • 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
    • G02F1/1337—Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
    • 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
    • G02F1/1339—Gaskets; Spacers; Sealing of cells
    • 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
    • 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
    • G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
    • G02F1/133311—Environmental protection, e.g. against dust or humidity
    • 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
    • G02F1/133528—Polarisers
    • G02F1/133548—Wire-grid polarisers
    • 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
    • G02F1/133628—Illuminating devices with cooling means
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F2202/00—Materials and properties
    • G02F2202/36—Micro- or nanomaterials

Definitions

  • the present disclosure relates to the field of display technologies, and in particular, to a backlight module and a display device.
  • the heat dissipation method of the aluminum substrate is usually adopted, and the aluminum substrate and the body are fastened by screws, and then the heat of the light source is used. Dissipated.
  • the heat dissipation efficiency of the aluminum substrate is relatively low during the long-term use of the heat dissipation method, and the heat dissipation of the light source is not timely enough, thereby causing the light source to be in a high temperature state, thereby causing the light of the light source.
  • the aging is severe, which in turn affects the brightness and the service life of the light source, so that the display quality of the final product is not guaranteed.
  • the purpose of the disclosure is to provide a backlight module and a display device, which overcomes the defects that the heat dissipation effect caused by the heat dissipation of the light source by the aluminum substrate in the prior art is not ideal, and the light source is seriously deteriorated and the service life is low.
  • an embodiment of the first aspect of the present disclosure provides a backlight module, including:
  • one side of the substrate is provided with a plurality of light source devices, and the other side of the substrate is provided with a graphite heat conducting layer.
  • the substrate is a printed circuit board made of aluminum.
  • the graphite thermally conductive layer is coated on the substrate.
  • the light source device is an LED light.
  • the graphite heat conducting layer is in the form of a sheet, and the flake graphite heat conducting layer is attached on the substrate.
  • the backlight module further includes a fuselage backplane, wherein the substrate is disposed on two sides of the fuselage backplane.
  • the two sides of the bottom of the fuselage backplane are provided with through holes.
  • the through hole is an inclined through hole.
  • An embodiment of the second aspect of the present disclosure provides a display device including the above backlight module.
  • the display device further includes an upper substrate and a lower substrate forming a pair of boxes, wherein an upper surface of the upper substrate is provided with an upper polarizer, and a lower surface of the upper substrate is provided with a color film layer, and the inner surface of the lower substrate Forming a wire grid polarizing film and an array layer on the surface; the inner surface of the upper and lower substrates is formed with an alignment layer, the liquid crystal layer is sandwiched in the pair of boxes; the periphery of the liquid crystal layer is sealed with a sealant; the outer surface of the lower substrate is provided There are nanoparticles, and the surface of the nanoparticles is provided with a reflecting plate.
  • a backlight module and a display device use a graphite heat conduction layer to conduct heat treatment on the heat in the body, and utilize the characteristics of the graphite to make the horizontal thermal conductivity of the heat body up to 1000 w/mk, and the heat conduction parameter can be
  • the heat dissipation layer of the graphite is disposed in the same direction as the hot airflow to dissipate heat, thereby maximizing heat dissipation efficiency, avoiding light decay and prolonging the service life of the light source.
  • FIG. 1 is a schematic structural view of a backlight module according to an embodiment of the present disclosure
  • FIG. 2 is a top plan view of a through hole in a backlight module according to an embodiment of the present disclosure
  • FIG 3 is a side view of a through hole in a backlight module in accordance with an embodiment of the present disclosure.
  • a backlight module provided by an embodiment of the present disclosure includes:
  • the substrate 1 is provided with a plurality of light source devices 2 on one side of the substrate 1, and a graphite heat conductive layer 3 is disposed on the other side of the substrate 1.
  • the graphite By using the graphite heat conduction layer to conduct heat treatment of the heat in the fuselage, the graphite has its own characteristics, so that its horizontal thermal conductivity is as high as 1000 w/mk.
  • the heat conduction parameter can dissipate the direction of the graphite heat conduction layer in the same direction as the hot air flow. To maximize heat dissipation, avoid light decay and extend the life of the light source.
  • graphite is the most preferred material for heat dissipating materials, considering the economic point of view, or the process and heat dissipation effects.
  • the graphite is a nano-advanced composite material. Any surface with uniform heat conduction and EMI electromagnetic shielding effect is a brand new heat conduction and heat dissipation material with unique grain orientation and uniform heat conduction in two directions.
  • the light source device 2 adopts an LED lamp in a practical application, and a plurality of LED lamps are distributed on the substrate 1.
  • the substrate is an aluminum printed circuit (Printed Circuit Board). Plate), of course, the PCB can be made of other materials having the same or similar physical properties as the aluminum plate, in addition to the aluminum plate material.
  • the graphite heat conductive layer may be directly coated on the substrate 1.
  • the graphite heat conductive layer may be provided in a sheet shape, and the flake graphite heat conductive layer may be attached to the substrate 1.
  • the lamellar structure is well adapted to any surface.
  • the two methods are simple in process and easy to implement.
  • the backlight module further includes a fuselage back plate, and the substrate 1 is disposed at both ends of the fuselage back plate to form a side-entry light source together with the LED lamp.
  • through holes 4 are provided at the bottom ends of the back panel of the fuselage.
  • the pair of through holes 4 may be inclined, that is, the through holes 4 are inclined through holes.
  • an embodiment of the present disclosure further provides a display device including the backlight module described above.
  • the display device further includes an upper substrate and a lower substrate forming a pair of boxes, an upper polarizing plate is disposed on an upper surface of the upper substrate, a color film layer is disposed on a lower surface of the upper substrate, and a wire grid is formed on an inner surface of the lower substrate a polarizing film and an array layer; an inner surface of the upper and lower substrates is formed with an alignment layer, a liquid crystal layer is sandwiched in the pair of boxes; a periphery of the liquid crystal layer is sealed with a sealant; and an outer surface of the lower substrate is provided with nanoparticles. And the surface of the nanoparticle is provided with a reflecting plate.
  • the display device of the structure adopts a graphite heat conduction layer to conduct heat to the heat in the body
  • the use of graphite's own characteristics makes its horizontal thermal conductivity up to 1000w/mk.
  • the thermal conductivity parameter can dissipate the direction of the graphite thermal conduction layer in the same direction as the hot airflow, maximizing heat dissipation efficiency, avoiding light decay and prolonging. The life of the light source.
  • the display device can be an electronic product such as a liquid crystal display, a liquid crystal display, a tablet computer, a notebook, or an e-book.

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  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Planar Illumination Modules (AREA)
  • Liquid Crystal (AREA)

Abstract

一种背光模组，包括基板（1），所述基板（1）的一侧设有多个光源器件（2），所述基板（1）的另一侧设有石墨导热层（3）。以及包括所述背光模组的显示装置。

Description

背光模组以及显示装置
相关申请的交叉引用
本申请主张在2014年10月22日在中国提交的中国专利申请号No.201410568932.6的优先权，其全部内容通过引用包含于此。
技术领域
本公开涉及显示技术领域，特别涉及一种背光模组以及显示装置。
背景技术
在液晶显示器的制作过程中，为了能够更好地将机身中光源产生的热量传递出去，通常采用铝基板散热方式，具体方式为将铝基板与机身采用螺丝紧固，进而将光源的热量散发出去。
在实际应用中发现，采用该散热方式的机身在长期使用的过程中，铝基板的散热效率比较低，造成光源的热量散热不够及时，由此导致光源一直处于高温状态，进而导致光源的光衰严重，进而影响到光亮以及光源的使用寿命，使得最终产品的显示品质得不到保障。
发明内容
本公开的目的在于提供一种背光模组以及显示装置，以克服现有技术中采用铝基板对光源进行散热导致的散热效果不理想，容易造成光源光衰严重以及使用寿命低下等缺陷。
为了解决上述技术问题，本公开第一方面的实施例提供了一种背光模组，包括：
基板，所述基板的一侧设有多个光源器件，所述基板的另一侧设有石墨导热层。
可选地，所述基板为铝制的印制电路板。
可选地，所述石墨导热层涂附在所述基板上。
可选地，所述光源器件为LED灯。
可选地，所述石墨导热层为片状，所述片状石墨导热层贴附在所述基板上。
可选地，所述背光模组还包括机身背板，其中所述基板设置于所述机身背板的两个侧部。
可选地，所述机身背板底部的两个侧部设有通孔。
可选地，所述通孔为倾斜通孔。
本公开第二方面的实施例提供了一种显示装置，其包括上述背光模组。
可选地，该显示装置还包括形成对盒的上基板和下基板，所述上基板的上表面设有上偏光片，其上基板的下表面设有彩膜层，所述下基板的内表面制作有线栅偏光膜和阵列层；所述上下基板内表面制作有取向层，所述对盒内夹有液晶层；所述液晶层周边用封框胶密封；所述下基板的外表面设有纳米颗粒，且纳米颗粒面设有反射板。
本公开实施例提供的一种背光模组以及显示装置，通过采用石墨导热层对机身中的热量进行导热处理，利用石墨自身特性，使得其水平方向导热系数高达1000w/mk，该导热参数可将石墨导热层的设置方向与热气流走向同方向进行散热，最大程度提高散热效率，避免光衰现象以及延长光源的使用寿命。
附图说明
图1为根据本公开一个实施例的背光模组的结构示意图；
图2为根据本公开一个实施例的背光模组中通孔的俯视图；以及
图3为根据本公开一个实施例的背光模组中通孔的侧视图。
具体实施方式
下面结合附图和实施例，对本公开的具体实施方式作进一步详细描述。以下实施例用于说明本公开，但不是用来限制本公开的范围。
如图1所示，本公开的实施例提供的一种背光模组，包括：
基板1，所述基板1的一侧设有多个光源器件2，所述基板1的另一侧设有石墨导热层3。
通过采用石墨导热层对机身中的热量进行导热处理，利用石墨自身特性，使得其水平方向导热系数高达1000w/mk，该导热参数可将石墨导热层的设置方向与热气流走向同方向进行散热，最大程度提高散热效率，避免光衰现象以及延长光源的使用寿命。
需要说明的是，经过大量实验得出，不管从经济角度考虑，还是从工艺方法以及散热效果考虑，采用石墨作为导热层为散热材料最为优选的材料，该石墨为一种纳米先进复合材料，适应任何表面均匀导热，具有EMI电磁屏蔽效果，是一种全新的导热散热材料，具有独特的晶粒取向，可沿两个方向均匀导热。
具体的，该光源器件2在实际应用中多采用LED灯，多个LED灯分布在所述基板1上，为了起到一些散热作用，该基板为铝制的PCB(Printed Circuit Board，印制电路板)，当然，该PCB除了采用铝板材料，也可以采用与铝板具有相同或相似物理特性的其他材料。
其中，该石墨导热层可以直接涂附在所述基板1上，当然，也可以将该石墨导热层设置为片状，该片状石墨导热层可以贴附在所述基板1上。片层状结构可很好地适应任何表面。
该两种方式工艺简单，容易实现。
另外，该背光模组还包括机身背板，所述基板1设置于机身背板的两端，从而与LED灯一起形成侧入式光源。
如图2-3所示，在机身背板底部两端设有通孔4。为了进一步减轻灰尘的进入而影响散热，并且有效防止漏光现象，可以将该对通孔4进行倾斜设置，即该通孔4为倾斜通孔。
另一方面，本公开的实施例还提供了一种显示装置，包括上述的背光模组。该显示装置还包括形成对盒的上基板和下基板，所述上基板的上表面设有上偏光片，其上基板的下表面设有彩膜层，所述下基板的内表面制作有线栅偏光膜和阵列层；所述上下基板内表面制作有取向层，所述对盒内夹有液晶层；所述液晶层周边用封框胶密封；所述下基板的外表面设有纳米颗粒，且纳米颗粒面设有反射板。
该种结构的显示装置，通过采用石墨导热层对机身中的热量进行导热处 理，利用石墨自身特性，使得其水平方向导热系数高达1000w/mk，该导热参数可将石墨导热层的设置方向与热气流走向同方向进行散热，最大程度提高散热效率，避免光衰现象以及延长光源的使用寿命。
该显示装置可以为液晶显示屏、液晶显示器、平板电脑、笔记本、电子书等电子产品。
以上所述仅是本公开的优选实施方式，应当指出，对于本技术领域的普通技术人员来说，在不脱离本公开技术原理的前提下，还可以做出若干改进和变型，这些改进和变型也应视为本公开的保护范围。

Claims (10)

  1. 一种背光模组，包括：
    基板，所述基板的一侧设有多个光源器件，所述基板的另一侧设有石墨导热层。
  2. 如权利要求1所述的背光模组，其中所述石墨导热层涂附在所述基板上。
  3. 如权利要求1所述的背光模组，其中所述石墨导热层为片状，所述片状石墨导热层贴附在所述基板上。
  4. 如权利要求1-3任一项所述的背光模组，其中所述光源器件为LED灯。
  5. 如权利要求1-4任一项所述的背光模组，其中所述基板为铝制的印制电路板。
  6. 如权利要求1-5任一项所述的背光模组，还包括机身背板，其中所述基板设置于所述机身背板的两个侧部。
  7. 如权利要求6所述的背光模组，其中所述机身背板底部的两个侧部设有通孔。
  8. 如权利要求7所述的背光模组，其中所述通孔为倾斜通孔。
  9. 一种显示装置，包括权利要求1-8任一项所述的背光模组。
  10. 如权利要求9所述的显示装置，还包括形成对盒的上基板和下基板，所述上基板的上表面设有上偏光片，其上基板的下表面设有彩膜层，所述下基板的内表面制作有线栅偏光膜和阵列层；所述上下基板内表面制作有取向层，所述对盒内夹有液晶层；所述液晶层周边用封框胶密封；所述下基板的外表面设有纳米颗粒，且纳米颗粒面设有反射板。
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