WO2018232790A1 - 背光模组及液晶显示模组 - Google Patents

背光模组及液晶显示模组 Download PDF

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Publication number
WO2018232790A1
WO2018232790A1 PCT/CN2017/092116 CN2017092116W WO2018232790A1 WO 2018232790 A1 WO2018232790 A1 WO 2018232790A1 CN 2017092116 W CN2017092116 W CN 2017092116W WO 2018232790 A1 WO2018232790 A1 WO 2018232790A1
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WO
WIPO (PCT)
Prior art keywords
double
plastic frame
metal piece
disposed
heat dissipation
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Application number
PCT/CN2017/092116
Other languages
English (en)
French (fr)
Inventor
曾杰
张夏
张珍珍
李晓玲
郑颖博
邱萱
Original Assignee
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 US15/578,537 priority Critical patent/US10185167B2/en
Publication of WO2018232790A1 publication Critical patent/WO2018232790A1/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
    • G02F1/133608—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
    • G02B6/0081—Mechanical or electrical aspects of the light guide and light source in the lighting device peculiar to the adaptation to planar light guides, e.g. concerning packaging
    • G02B6/0085—Means for removing heat created by the light source from the package
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0081—Mechanical or electrical aspects of the light guide and light source in the lighting device peculiar to the adaptation to planar light guides, e.g. concerning packaging
    • G02B6/0086—Positioning aspects
    • G02B6/0088—Positioning aspects of the light guide or other optical sheets in the package
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0081—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
    • G02B6/009—Positioning aspects of the light source 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
    • G02F1/133612—Electrical details
    • 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
    • G02F2202/22—Antistatic materials or arrangements

Definitions

  • the invention relates to a display panel technology, in particular to a backlight module and a liquid crystal display module.
  • a liquid crystal display device has been widely used as a display component of an electronic device in various electronic products, and a backlight module is an important component in a liquid crystal display device.
  • small and medium-sized backlight modules include: a plastic frame, a reflective sheet, a light guide plate, an optical film set, a light bar, and a light-shielding tape (mouth glue), and the flexibility of the light bar
  • the circuit board is fixed on the plastic frame by the light shielding tape, and is fixed on the side opposite to the light shielding tape and the light shielding plate, and the optical film group is attached to the plastic frame by the light shielding tape; when the display panel is fixed, the display panel is fixed It is fixed on the plastic frame by shading tape.
  • the optical film set is assembled, the tearing protective film is liable to generate static electricity, and the optical film is adsorbed together, so that the backlight module generates an optical problem such as a Newton ring.
  • the present invention provides a backlight module and a liquid crystal display module, so that the backlight module can resist static electricity and prevent the generation of Newton's rings.
  • the invention provides a backlight module, which comprises a plastic frame, a reflective sheet disposed on one surface of the plastic frame, a light guide plate disposed in the plastic frame, and a light bar disposed on the plastic frame opposite to the side of the light guide plate.
  • An optical film set disposed on a surface of the light guide plate facing away from the reflective sheet, wherein a side surface of the plastic frame facing away from the reflective sheet is provided with a double-sided adhesive, and at least one side of the plastic frame is provided with a through groove.
  • the through groove is disposed on a side surface of the plastic frame opposite to the double-sided tape, wherein the through groove extends through the inner side surface, the outer side surface of the plastic frame frame and a side surface opposite to the double-sided tape; a conductive heat dissipating layer for guiding static electricity and dissipating heat, a double-sided adhesive layer disposed on both sides of the conductive heat dissipating layer, and a first metal sheet on the double-sided adhesive layer opposite to the plastic frame, the first metal piece and the groove position Correspondingly, the first metal piece is in contact with the optical film set and the conductive heat dissipation layer, respectively.
  • a protrusion is provided on the edge of the optical film group corresponding to the position of the groove, and the protrusion is embedded in the through groove.
  • a first hole is disposed on the first metal sheet on the double-sided adhesive layer opposite to the plastic frame, and the first metal piece is disposed in the first hole, and the inner surface of the first metal piece is in contact with the conductive heat dissipation layer.
  • First piece of metal The outer surface forms a first exposed portion, the first exposed portion being in contact with the protruding portion.
  • the double-sided tape is provided with a widening portion on one side of the light bar.
  • a through hole is disposed on the widened portion corresponding to the position of the lamp bead of the light bar, and the light bar extends from the side surface of the double-sided tape away from the plastic frame into the plastic frame through the through hole
  • the flexible circuit board of the light bar is attached to a side surface of the widened portion facing away from the plastic frame.
  • a second metal piece is disposed on the double-sided adhesive layer facing away from the plastic frame, and the second metal piece is disposed at a position corresponding to the position of the flexible circuit board at the widened portion, and the second metal piece is respectively connected with the conductive heat dissipation layer And flexible circuit board contact.
  • a second hole is disposed on the double-sided adhesive layer facing away from the plastic frame, and the second metal piece is disposed in the second hole, and the inner surface of the second metal piece is in contact with the conductive heat dissipation layer.
  • the outer surface of the second metal sheet forms a second exposed portion, and the second exposed portion is in contact with the flexible wiring board.
  • the conductive heat dissipation layer is a graphite sheet.
  • first metal piece and the second metal piece are copper foil.
  • the invention also provides a liquid crystal display module, comprising the backlight module.
  • the present invention provides a through groove on the plastic frame, a conductive heat conductive layer in the double-sided tape, and a first metal piece on the double-sided tape, the first metal piece and the optical film set and the heat conduction.
  • the conductive layer contacts, and when the optical film group generates static electricity, the static electricity can be guided away by the metal piece and the heat conductive conductive layer, thereby realizing antistatic and preventing the generation of Newton's rings.
  • FIG. 1 is a schematic structural view of a first assembly manner of a backlight module of the present invention
  • FIG. 2 is a schematic structural view of a plastic frame of the present invention
  • 3-1 is a schematic structural view of an optical film set of the present invention.
  • Figure 3-2 is an assembly view of the optical film set and the plastic frame of the present invention.
  • Figure 4-1 is a schematic view showing the external structure of the double-sided tape of the present invention.
  • Figure 4-2 is a partial cross-sectional view of the double-sided tape of the present invention
  • 4-3 is a schematic view showing the connection of the double-sided tape and the optical film set of the present invention.
  • Figure 5 is a schematic view showing the external structure of the first double-sided tape of the present invention.
  • FIG. 6 is a schematic structural view of a second assembly manner of a backlight module of the present invention.
  • FIG. 7 is a schematic view showing the external structure of a second double-sided tape of the backlight module of the present invention.
  • Figure 8 is a cross-sectional view showing a second double-sided tape of the backlight module of the present invention.
  • the backlight module of the present invention comprises a plastic frame 1 , a reflective sheet 2 disposed on one surface of the plastic frame 1 , and a light guide plate 3 disposed in the plastic frame 1 .
  • the light strip 4 disposed on the side of the light guide plate 3 opposite to the side of the light guide plate 3 and the optical film group 5 disposed on the side of the light guide plate 3 facing away from the reflective sheet 2 are disposed on the surface of the plastic frame 1 facing away from the reflective sheet 2
  • the double-sided tape 6 is disposed around the edge of the plastic frame 1; the lamp bead 15 of the light bar 4 is disposed opposite to the reflective sheet 2, and the through-groove 7 is disposed on at least one side of the frame of the plastic frame 1.
  • the through groove 7 is disposed on a side surface of the frame 1 opposite to the double-sided tape 6.
  • the through groove 7 extends through the inner side surface, the outer side surface of the frame of the plastic frame 1 and the double-sided tape 6
  • the double-sided tape 6 includes a conductive heat dissipation layer 8 for conducting static electricity and heat dissipation, and a double-sided adhesive layer 9 (shown in FIG. 4-2) disposed on both sides of the conductive heat dissipation layer 8 to conduct electricity.
  • the heat dissipation layer 8 is a sheet-like structure made of a graphite material, that is, a graphite sheet; for the sake of understanding, in the following description, the two double-sided adhesive layers 9 in the double-sided tape 6 are respectively defined as two sides opposite to the frame 1
  • the glue layer 9 is defined as the first double side Layer 9A, facing away from the plastic frame 9 defines a double-sided adhesive layer 1 is the second double-sided adhesive layer 9B;
  • the first double-sided adhesive layer 9A is provided with a first metal sheet 12, and the first metal sheet 12 is a copper foil.
  • the first metal sheet 12 corresponds to the position of the through-groove 7, and the first metal sheet 12 is respectively optically
  • the diaphragm group 5 and the conductive heat dissipation layer 8 are in contact with each other, so that the static electricity generated by the optical film group 5 is led out from the through groove 7 to the outside of the backlight module through the first metal piece 12 and the conductive heat dissipation layer 8, thereby preventing the occurrence of the Newton's ring phenomenon.
  • the optical film set 5 is disposed in the plastic frame 1 and located between the light guide plate 3 and the double-sided tape 6 .
  • the edge of the optical film group 5 is provided with a protrusion 10 corresponding to the position of the through groove 7, and the protrusion 10 is embedded in the through groove 7, and the protrusion 10 is The shape is adapted to the shape of the through groove 7, so that the optical film group 5 is oscillated back and forth after being inserted into the through groove 7, so that the foolproof effect can also be achieved.
  • the through slot 7 is disposed on the long sides of the two sides of the plastic frame 1 and the light bar 4.
  • the through slots 7 are respectively spaced apart, and the through slots 7 on the long sides of the two sides are respectively staggered. It is provided that, correspondingly, the protruding portion 10 is disposed corresponding to the through groove 7; the through groove 7 of each side is provided with three.
  • a first hole 13 is defined in the first metal sheet 12 on the first double-sided adhesive layer 9A, so that the first metal piece 12 is disposed in the first hole 13, and the first metal piece 12 is disposed.
  • a first exposed portion 14 is formed on the outer surface of the first metal piece 12, and the first exposed portion 14 is in contact with the protruding portion 10 (shown in FIG. 4-3), and the first metal piece 12 is added. The contact area with the protrusion 10.
  • the double-sided tape 6 is further provided with a contact portion 20 for contacting the conductive heat dissipation layer 8 with the liquid crystal display device.
  • the contact portion 20 can be set according to the actual situation of the liquid crystal display device.
  • the position of the contact portion 20 is not particularly limited, and it is only necessary to be able to derive the static electricity.
  • the light bar 4 of the backlight module of the first embodiment is disposed on a side surface of the double-sided tape 6 opposite to the plastic frame 1;
  • a first hole 13 (shown in FIG. 4-2) is disposed on the first metal sheet 12 on the first double-sided adhesive layer 9A, so that the first metal piece 12 is disposed in the first hole 13, and the first metal piece 12 is disposed.
  • a first exposed portion 14 is formed on the outer surface of the first metal piece 12, and the first exposed portion 14 is in contact with the protruding portion 10 (shown in FIG. 4-3), and the first metal piece 12 is added.
  • a widened portion 11 is provided on one side of the double-sided tape 6 on the light bar 4, the width of the widened portion 11 is greater than the width of the remaining portion of the double-sided tape 6, and the light bar 4 is widened The part 11 is fixed.
  • the double-sided tape 6 can be provided with a hollow portion 21 on the first double-sided adhesive layer 9A at the widened portion 11, so that the conductive heat dissipation layer at the hollowed portion 21 is provided.
  • the conductive heat dissipation layer at the hollowed portion 21 is provided. 8 bare, by contacting the flexible circuit board 23 of the light bar 4 with the portion of the conductive heat dissipation layer 8 at the hollow portion 21, the heat generated by the light bar 4 and the static electricity generated by the flexible circuit board are absorbed through the conductive heat dissipation layer 8. It is guided away, thereby lowering the temperature of the light bar 4 and eliminating static electricity, thereby further preventing the occurrence of the Newton's ring phenomenon.
  • the side surface of the plastic frame 1 opposite to the double-sided tape 6 is located at the edge of the hole in the frame, and the sinking step 24 is disposed adjacent to the light bar 4 for carrying the light bar 4 And the optical film group 5, correspondingly, the height of the side of the light guide plate 3 adjacent to the light bar 4 is equal to the height of the step surface of the sinking step 24, and the two sides of the flexible circuit board 23 of the light bar 4 are respectively placed On the sinking step 24 and the side edge of the light guide plate 3 adjacent thereto.
  • the light bar 4 of the backlight module of the second embodiment is disposed on a side surface of the double-sided tape 6 facing away from the plastic frame 1 , and is located on the double-sided tape 6 on the light bar 4 .
  • One side is provided with a widening portion 11, the width of the widening portion 11 is greater than the width of the remaining portion of the double-sided tape 6, and the light bar 4 is fixed by the widening portion 11;
  • a first hole 13 (shown in FIG. 4-2) is disposed on the first metal sheet 12 on the first double-sided adhesive layer 9A, so that the first metal piece 12 is disposed in the first hole 13, and the first metal piece 12 is disposed.
  • a first exposed portion 14 is formed on the outer surface of the first metal piece 12, and the first exposed portion 14 is in contact with the protruding portion 10 (shown in FIG. 4-3), and the first metal piece 12 is added.
  • the widening portion 11 of the embodiment 2 is further provided with a through hole 16 corresponding to the position of the lamp bead 15 of the light bar 4, and the light bar 4 is separated from the double-sided tape 6 by a side of the bezel 1
  • the side surface of the light strip 15 extends into the plastic frame 1 through the through hole 16 , and the flexible circuit board 23 of the light strip 4 is adhered to the surface of the widened portion 11 facing away from the plastic frame 1 , and is passed through the lamp bead 15
  • the conductive heat dissipation layer 8 in the hole 16 is in contact so that the heat of the lamp bead 15 can be dissipated through the conductive heat dissipation layer 8.
  • a second metal piece 17 is disposed on the second double-sided adhesive layer 9B, and the second metal piece 17 is disposed at a position where the widened portion 11 corresponds to the flexible circuit board 23.
  • the second metal sheet 17 is in contact with the conductive heat dissipation layer 8 and the flexible circuit board 23 respectively.
  • the second metal sheet 17 is disposed on the second double-sided rubber layer 9B, and the second hole 18 is provided.
  • the second metal piece 17 is disposed in the second hole 18, the inner surface of the second metal piece 17 is in contact with the conductive heat dissipation layer 8, and the outer surface of the second metal piece 17 forms a second exposed portion 19, the second exposed portion 19 is in contact with the flexible circuit board 23, and the heat generated by the light bar 4 and the static electricity generated by the flexible circuit board are absorbed and guided through the second metal piece 17 and the conductive heat dissipation layer 8, thereby reducing the temperature of the light bar 4 and eliminating static electricity. Thereby further preventing the occurrence of Newton's ring phenomenon.
  • the first metal sheet 12 can be disposed at least at the position of one of the through grooves 7 as needed, or at the position of all the through grooves 7, which is not specifically limited.
  • the metal piece 17 can also be disposed at a position corresponding to the position of the widened portion 11 and the flexible wiring board 23 as needed. One or more are not specifically limited herein.
  • a liquid crystal display module of the present invention includes the backlight module disclosed in Embodiment 1 or Embodiment 2, and is not described herein again.
  • the panel 22 is separated from the plastic frame 1 by the double-sided tape 6 One side surface of the sheet 2 is adhered and fixed.

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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)
  • Liquid Crystal (AREA)
  • Planar Illumination Modules (AREA)

Abstract

一种背光模组，包括胶框（1）、设于胶框（1）一侧表面的反射片（2）、设于胶框（1）中的导光板（3）、设于胶框（1）中与导光板（3）的侧边相对的灯条（4）、设于导光板（3）背离反射片（2）一侧表面的光学膜片组（5），胶框（1）背离反射片（2）一侧表面设有双面胶（6），胶框（1）上至少一侧框体上设有通槽（7），通槽（7）设于胶框（1）与双面胶（6）相对的一侧表面上，通槽（7）贯穿胶框（1）框体的内侧面、外侧面以及与双面胶（6）相对的一侧表面；双面胶（6）包括用于导静电以及散热的导电散热层（8）、设于导电散热层（8）两侧表面的双面胶层（9），双面胶（6）上设有第一金属片（12），第一金属片（12）位于通槽（7）上，第一金属片（12）分别与光学膜片组（5）以及导电散热层（8）接触。与现有技术相比，实现抗静电和防止牛顿环的产生。

Description

背光模组及液晶显示模组 技术领域
本发明涉及一种显示面板技术，特别是一种背光模组及液晶显示模组。
背景技术
目前，液晶显示装置作为电子设备的显示部件已经广泛的应用于各种电子产品中，而背光模组则是液晶显示装置中的一个重要部件。
一般情况下，中小尺寸背光模组(不同于大尺寸)，包括：一胶框、一反射片、一导光板、光学膜片组、灯条以及遮光胶带(口字胶)，灯条的柔性线路板通过遮光胶带固定于胶框上，其固定是方式是固定于遮光胶带与导光板相对的一侧，光学膜片组通过遮光胶带贴合于胶框上；与显示面板固定时，显示面板是通过遮光胶带固定在胶框上。在组装光学膜片组时，因撕保护膜易产生静电，而使光学膜片吸附在一起，这样背光模组会产生牛顿环这类的光学问题。
发明内容
为克服现有技术的不足，本发明提供一种背光模组及液晶显示模组，使背光模组可以抗静电以及防止牛顿环的产生。
本发明提供了一种背光模组，包括胶框、设于胶框一侧表面的反射片、设于胶框中的导光板、设于胶框中与导光板的侧边相对的灯条、设于导光板背离反射片一侧表面的光学膜片组，所述胶框背离反射片一侧表面设有双面胶，所述胶框上至少一侧框体上设有通槽，所述通槽设于胶框与双面胶相对的一侧表面上，所述通槽贯穿胶框框体的内侧面、外侧面以及与双面胶相对的一侧表面；所述双面胶包括用于导静电以及散热的导电散热层、设于导电散热层两侧表面的双面胶层，与胶框相对的双面胶层上设有第一金属片，所述第一金属片与通槽位置相对应，所述第一金属片分别与光学膜片组以及导电散热层接触。
进一步地，所述光学膜片组的边缘上与通槽位置相对应处设有突出部，突出部嵌入通槽中。
进一步地，在与胶框相对的双面胶层上位于第一金属片处设有第一孔，第一金属片设于第一孔中，第一金属片的内表面与导电散热层接触，第一金属片 的外表面形成第一裸露部，所述第一裸露部与突出部接触。
进一步地，所述双面胶上位于灯条的一侧设有加宽部。
进一步地，所述加宽部上与灯条的灯珠位置相对应处设有通孔，所述灯条从双面胶背离胶框的一侧表面将灯珠经通孔伸入胶框中，所述灯条的柔性线路板与加宽部背离胶框的一侧表面贴合。
进一步地，背离胶框的双面胶层上设有第二金属片，所述第二金属片设置在加宽部与柔性线路板位置相对应处，所述第二金属片分别与导电散热层以及柔性线路板接触。
进一步地，背离胶框的双面胶层上位于第二金属片处设有第二孔，第二金属片设于第二孔中，第二金属片的内表面与导电散热层接触，所述第二金属片的外表面形成第二裸露部，所述第二裸露部与柔性线路板接触。
进一步地，所述导电散热层为石墨片。
进一步地，所述第一金属片和第二金属片为铜箔。
本发明还提供了一种液晶显示模组，包括所述的背光模组。
本发明与现有技术相比，通过在胶框上设置通槽、在双面胶中设置导电导热层以及在双面胶上设置第一金属片，第一金属片与光学膜片组以及导热导电层接触，当光学膜片组产生静电时可通过金属片和导热导电层将静电导走，从而实现抗静电和防止牛顿环的产生。
附图说明
图1是本发明背光模组第一种装配方式的结构示意图；
图2是本发明胶框的结构示意图；
图3-1是本发明光学膜片组的结构示意图；
图3-2是本发明光学膜片组与胶框的装配图；
图4-1是本发明双面胶的外部结构示意图；
图4-2是本发明双面胶的局部剖面图
图4-3是本发明双面胶与光学膜片组的连接示意图；
图5是本发明第一种双面胶的外部结构示意图；
图6是本发明背光模组的第二种装配方式的结构示意图；
图7是本发明背光模组第二种双面胶的外部结构示意图；
图8是本发明背光模组第二种双面胶的剖面图。
具体实施方式
下面结合附图和实施例对本发明作进一步详细说明。
如图1、图2和图4-1所示，本发明的背光模组均包括胶框1、设于胶框1一侧表面的反射片2、设于胶框1中的导光板3、设于胶框1中与导光板3的侧边相对的灯条4、设于导光板3背离反射片2一侧表面的光学膜片组5，在胶框1背离反射片2一侧表面设有双面胶6，该双面胶6沿胶框1的边缘围绕一周；灯条4的灯珠15与反射片2相对设置，在胶框1的至少一侧框体上设有通槽7(图2所示)，通槽7设于胶框1与双面胶6相对的一侧表面上，所述通槽7贯穿胶框1框体的内侧面、外侧面以及与双面胶6相对的一侧表面；所述双面胶6包括用于导静电以及散热的导电散热层8以及设于导电散热层8两侧表面的双面胶层9(图4-2所示)，导电散热层8为由石墨材料制成的片状结构，即石墨片；为了便于理解，以下叙述中，将双面胶6中两层双面胶层9分别定义为与胶框1相对的双面胶层9定义为第一双面胶层9A，背离胶框1的双面胶层9定义为第二双面胶层9B；
所述第一双面胶层9A上设有第一金属片12，第一金属片12为铜箔，所述第一金属片12与通槽7位置相对应，第一金属片12分别与光学膜片组5以及导电散热层8接触，从而将光学膜片组5产生的静电经第一金属片12、导电散热层8从通槽7导出至背光模组外，防止牛顿环现象的产生。
如图1所示，本发明中，光学膜片组5设于胶框1中且位于导光板3与双面胶6之间。
如图3-1和图3-2所示，所述光学膜片组5的边缘上与通槽7位置相对应处设有突出部10，突出部10嵌入通槽7中，突出部10的形状与通槽7的形状相适配，从而避免嵌入通槽7中后，光学膜片组5会来回晃动，这样还能够实现防呆的作用。
具体地，如图2所示，所述通槽7设于胶框1与灯条4垂直的两侧长边上，通槽7分别间隔设置，位于两侧长边上的通槽7分别交错设置，相应地，突出部10与通槽7对应设置；所述每侧的通槽7设有3个。
如图4-1所示，在第一双面胶层9A上位于第一金属片12处设有第一孔13，使第一金属片12设于第一孔13中，第一金属片12与导电散热层8接触，在第一金属片12的外表面形成第一裸露部14，所述第一裸露部14与突出部10接触(图4-3所示)，增加第一金属片12与突出部10的接触面积。
在本发明中，如图4-1所示，双面胶6上还设有供导电散热层8与液晶显示装置接触的接触部20，接触部20可根据液晶显示装置的实际情况设置，在此对接触部20的位置不作具体限定，仅需要能够实现将静电导出即可。
如图1和图5所示，实施例1的背光模组中灯条4设于双面胶6与胶框1相对的一侧表面；
在第一双面胶层9A上位于第一金属片12处设有第一孔13(图4-2所示)，使第一金属片12设于第一孔13中，第一金属片12与导电散热层8接触，在第一金属片12的外表面形成第一裸露部14，所述第一裸露部14与突出部10接触(图4-3所示)，增加第一金属片12与突出部10的接触面积；在双面胶6上位于灯条4的一侧设有加宽部11，加宽部11的宽度大于双面胶6其余部分的宽度，灯条4通过加宽部11固定。
如图5所示，在实施例1中，双面胶6可在位于加宽部11处的第一双面胶层9A上设置挖空部21，使位于挖空部21处的导电散热层8裸露，通过将灯条4的柔性线路板23与位于挖空部21处这部分导电散热层8接触，实现将灯条4产生的热量以及柔性线路板产生的静电通过导电散热层8进行吸收导走，从而降低灯条4的温度以及消除静电，从而进一步防止牛顿环现象的产生。
在实施例1中，胶框1与双面胶6相对的一侧表面位于框体内孔边缘设有下沉台阶24，下沉台阶24与灯条4相邻设置，从而用于承载灯条4以及光学膜片组5，相应地，导光板3与灯条4相邻的一侧的高度与下沉台阶24的台阶面所处高度相等，灯条4的柔性线路板23的两侧分别放置在下沉台阶24以及导光板3与之相邻的一侧边缘上。
如图6、图7和图8所示，实施例2的背光模组中灯条4设于双面胶6背离胶框1的一侧表面上，在双面胶6上位于灯条4的一侧设有加宽部11，加宽部11的宽度大于双面胶6其余部分的宽度，灯条4通过加宽部11固定；
在第一双面胶层9A上位于第一金属片12处设有第一孔13(图4-2所示)，使第一金属片12设于第一孔13中，第一金属片12与导电散热层8接触，在第一金属片12的外表面形成第一裸露部14，所述第一裸露部14与突出部10接触(图4-3所示)，增加第一金属片12与突出部10的接触面积。
如图7所示，实施例2中加宽部11上还设有与灯条4的灯珠15位置相对应的通孔16，所述灯条4从双面胶6背离胶框1的一侧表面将灯珠15经通孔16伸入胶框1中，所述灯条4的柔性线路板23与加宽部11背离胶框1的一侧表面贴合，通过灯珠15与位于通孔16中的导电散热层8接触，从而使灯珠15的热量能够经导电散热层8散发出去。
如图8所示，在实施例2中，在第二双面胶层9B上设有第二金属片17，所述第二金属片17设置在加宽部11与柔性线路板23位置相对应处，所述第二金属片17分别与导电散热层8以及柔性线路板23接触，具体地，在第二双面胶层9B上位于第二金属片17处设有第二孔18，使第二金属片17设于第二孔18中，第二金属片17的内表面与导电散热层8接触，所述第二金属片17的外表面形成第二裸露部19，所述第二裸露部19与柔性线路板23接触，实现将灯条4产生的热量以及柔性线路板产生的静电通过第二金属片17、导电散热层8进行吸收导走，从而降低灯条4的温度以及消除静电，从而进一步防止牛顿环现象的产生。
本发明中，第一金属片12的设置可根据需要至少在双面胶6位于其中一个通槽7位置处设置，也可以设置在所有的通槽7位置处，在此不作具体限定，第二金属片17也可根据需要在加宽部11与柔性线路板23位置相对应处设置 一个或多个，在此不作具体限定。
如图1所示，本发明的一种液晶显示模组，包括实施例1或实施例2所公开的背光模组，在此不再赘述，面板22通过双面胶6与胶框1背离反射片2的一侧表面粘贴固定。
虽然已经参照特定实施例示出并描述了本发明，但是本领域的技术人员将理解：在不脱离由权利要求及其等同物限定的本发明的精神和范围的情况下，可在此进行形式和细节上的各种变化。

Claims (18)

  1. 一种背光模组，包括胶框、设于胶框一侧表面的反射片、设于胶框中的导光板、设于胶框中与导光板的侧边相对的灯条、设于导光板背离反射片一侧表面的光学膜片组，其中：所述胶框背离反射片一侧表面设有双面胶，所述胶框上至少一侧框体上设有通槽，所述通槽设于胶框与双面胶相对的一侧表面上，所述通槽贯穿胶框框体的内侧面、外侧面以及与双面胶相对的一侧表面；所述双面胶包括用于导静电以及散热的导电散热层、设于导电散热层两侧表面的双面胶层，与胶框相对的双面胶层上设有第一金属片，所述第一金属片与通槽位置相对应，所述第一金属片分别与光学膜片组以及导电散热层接触。
  2. 根据权利要求1所述的背光模组，其中：所述光学膜片组的边缘上与通槽位置相对应处设有突出部，突出部嵌入通槽中。
  3. 根据权利要求1所述的背光模组，其中：在与胶框相对的双面胶层上位于第一金属片处设有第一孔，第一金属片设于第一孔中，第一金属片的内表面与导电散热层接触，第一金属片的外表面形成第一裸露部，所述第一裸露部与突出部接触。
  4. 根据权利要求1所述的背光模组，其中：所述双面胶上位于灯条的一侧设有加宽部。
  5. 根据权利要求4所述的背光模组，其中：所述加宽部上与灯条的灯珠位置相对应处设有通孔，所述灯条从双面胶背离胶框的一侧表面将灯珠经通孔伸入胶框中，所述灯条的柔性线路板与加宽部背离胶框的一侧表面贴合。
  6. 根据权利要求5所述的背光模组，其中：背离胶框的双面胶层上设有第二金属片，所述第二金属片设置在加宽部与柔性线路板位置相对应处，所述第二金属片分别与导电散热层以及柔性线路板接触。
  7. 根据权利要求6所述的背光模组，其中：背离胶框的双面胶层上位于第二金属片处设有第二孔，第二金属片设于第二孔中，第二金属片的内表面与导电散热层接触，所述第二金属片的外表面形成第二裸露部，所述第二裸露部与柔性线路板接触。
  8. 根据权利要求1所述的背光模组，其中：所述导电散热层为石墨片。
  9. 根据权利要求7所述的背光模组，其中：所述第一金属片和第二金属片为铜箔。
  10. 一种液晶显示模组，其特征在于：包括背光模组，所述背光模组包括胶框、设于胶框一侧表面的反射片、设于胶框中的导光板、设于胶框中与导光板的侧边相对的灯条、设于导光板背离反射片一侧表面的光学膜片组，所述胶框背离反射片一侧表面设有双面胶，所述胶框上至少一侧框体上设有通槽，所述通槽设于胶框与双面胶相对的一侧表面上，所述通槽贯穿胶框框体的内侧面、外侧面以及与双面胶相对的一侧表面；所述双面胶包括用于导静电以及散热的导电散热层、设于导电散热层两侧表面的双面胶层，与胶框相对的双面胶层上设有第一金属片，所述第一金属片与通槽位置相对应，所述第一金属片分别与光学膜片组以及导电散热层接触。
  11. 根据权利要求10所述的液晶显示模组，其中：所述光学膜片组的边缘上与通槽位置相对应处设有突出部，突出部嵌入通槽中。
  12. 根据权利要求10所述的液晶显示模组，其中：在与胶框相对的双面胶层上位于第一金属片处设有第一孔，第一金属片设于第一孔中，第一金属片的内表面与导电散热层接触，第一金属片的外表面形成第一裸露部，所述第一裸露部与突出部接触。
  13. 根据权利要求10所述的液晶显示模组，其中：所述双面胶上位于灯条的一侧设有加宽部。
  14. 根据权利要求13所述的液晶显示模组，其中：所述加宽部上与灯条的灯珠位置相对应处设有通孔，所述灯条从双面胶背离胶框的一侧表面将灯珠经通孔伸入胶框中，所述灯条的柔性线路板与加宽部背离胶框的一侧表面贴合。
  15. 根据权利要求14所述的液晶显示模组，其中：背离胶框的双面胶层上设有第二金属片，所述第二金属片设置在加宽部与柔性线路板位置相对应处，所述第二金属片分别与导电散热层以及柔性线路板接触。
  16. 根据权利要求15所述的液晶显示模组，其中：背离胶框的双面胶层上位于第二金属片处设有第二孔，第二金属片设于第二孔中，第二金属片的内表面与导电散热层接触，所述第二金属片的外表面形成第二裸露部，所述第二裸露部与柔性线路板接触。
  17. 根据权利要求10所述的液晶显示模组，其中：所述导电散热层为石墨片。
  18. 根据权利要求16所述的液晶显示模组，其中：所述第一金属片和第二金属片为铜箔。
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