WO2014015506A1 - 一种背光模组及液晶显示装置 - Google Patents

一种背光模组及液晶显示装置 Download PDF

Info

Publication number
WO2014015506A1
WO2014015506A1 PCT/CN2012/079230 CN2012079230W WO2014015506A1 WO 2014015506 A1 WO2014015506 A1 WO 2014015506A1 CN 2012079230 W CN2012079230 W CN 2012079230W WO 2014015506 A1 WO2014015506 A1 WO 2014015506A1
Authority
WO
WIPO (PCT)
Prior art keywords
light
guide plate
light guide
light source
backlight module
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/CN2012/079230
Other languages
English (en)
French (fr)
Inventor
周革革
李德华
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TCL China Star Optoelectronics Technology Co Ltd
Original Assignee
Shenzhen China Star Optoelectronics Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shenzhen China Star Optoelectronics Technology Co Ltd filed Critical Shenzhen China Star Optoelectronics Technology Co Ltd
Priority to DE112012006584.0T priority Critical patent/DE112012006584B4/de
Priority to US13/580,136 priority patent/US8834006B2/en
Publication of WO2014015506A1 publication Critical patent/WO2014015506A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Images

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
    • G02B6/0081—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
    • 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
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0066—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form characterised by the light source being coupled to the light guide
    • G02B6/0068—Arrangements of plural sources, e.g. multi-colour light sources
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0081—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
    • G02B6/0091—Positioning aspects of the light source relative to the light guide
    • 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

Definitions

  • the present invention relates to the field of liquid crystal display technology, and in particular, to a backlight module and a liquid crystal display device.
  • the liquid crystal display device since the liquid crystal panel itself cannot emit light, it is necessary to use a backlight module to generate a display function.
  • the performance of the backlight module often directly affects the imaging quality of the liquid crystal display device. Therefore, the backlight module becomes an important part of the liquid crystal display device.
  • the current backlight module usually adopts a side-in backlight mode.
  • the so-called side-in backlight mode means that the LED light bar is placed on one side of the light guide plate, and the light is incident on the light guide plate from the side, and the line light source is converted into a uniform surface light source through the light guide plate. .
  • FIG. 1 is a partial cross-sectional view showing a backlight module of the prior art.
  • the backlight module includes a back frame 110, a heat dissipation frame 120, a light guide plate 130, and an LED lamp 140.
  • the heat dissipation frame 120 and the back frame 110 are stacked together, and the LED lamp 140 is disposed at a position of the heat dissipation frame 120 facing the side of the light guide plate 130.
  • the backlight module adopts a side-entry backlight mode, and a certain gap needs to be maintained between the LED lamp 140 and the light guide plate 130 to ensure the light-emitting efficiency and prevent the occurrence of the mura phenomenon (ie, chromaticity unevenness).
  • the light guide plate 130 is heated and expanded, and the distance between the LED lamp 140 and the light guide plate 130 is relatively small, which may cause the light guide plate 130 to be pressed against the surface of the LED lamp 140.
  • the LED lamp 140 seriously affects the life of the backlight module.
  • the technical problem to be solved by the present invention is to provide a backlight module and a liquid crystal display device, which can block the light guide plate from contacting the light source when the light guide plate is heated and expanded, and prevent the light guide plate from crushing the light source.
  • a technical solution adopted by the present invention is to provide a backlight module, including a light guide plate, a reflection sheet, a heat dissipation frame, a light source circuit board, a plurality of light sources, and a back frame.
  • the light guide plate comprises a light-emitting surface, a light-incident surface of the adjacent light-emitting surface and a bottom surface of the light-emitting surface;
  • the reflective sheet abuts against the bottom surface of the light guide plate;
  • the heat-dissipating frame comprises a bearing portion and a sidewall extending from the edge of the bearing portion to the light-emitting direction The bearing portion abuts against the reflective sheet, and the receiving portion is disposed adjacent to the edge of the side wall with a plurality of through holes, the side wall is adjacent to the light incident surface of the light guide plate;
  • the light source circuit board is disposed on the side wall of the light incident surface of the light guide plate;
  • the plurality of light sources are disposed on the light source circuit board at intervals on the light incident surface of the light guide plate, and the gap between the adjacent two light sources corresponds to the position of the through hole, so that the positions of the plurality of light sources are staggered from the plurality of through holes;
  • the heat dissipation frame is aluminum extrusion.
  • the surface of the carrying portion has a protrusion protruding from the light guiding direction of the light guide plate, and the protruding block abuts against the reflective sheet to increase the contact area of the reflective sheet with the atmosphere.
  • the light source is an LED light.
  • a technical solution adopted by the present invention is to provide a backlight module, including a light guide plate, a heat dissipation frame, a light source, and a back frame.
  • the light guide plate includes a light-emitting surface, a light-incident surface of the adjacent light-emitting surface and a bottom surface of the light-emitting surface;
  • the heat-dissipating frame includes a bearing portion and a sidewall extending from the edge of the bearing portion to the light-emitting direction, and the bearing portion abuts the bottom surface of the light guide plate
  • the edge of the supporting portion adjacent to the sidewall is provided with a through hole, the sidewall is adjacent to the light incident surface of the light guide plate; the light incident surface of the light guide plate is disposed on the sidewall of the light guide plate, and the position of the light source is staggered from the through hole;
  • the bottom plate includes a bottom portion and a rising portion extending from the edge of the bottom plate to the light-emit
  • the plurality of through holes are spaced apart from the edge of the side wall from the edge of the side wall, and a plurality of rising portions are formed to extend from the edge of the bottom plate to the light exiting direction, and the plurality of rising portions pass through the plurality of through holes.
  • the light source is plural, the plurality of light sources are spaced apart from each other on the side wall, and the gap between the adjacent two light sources corresponds to the position of the through hole, so that the positions of the plurality of light sources are staggered from the plurality of through holes.
  • the backlight module includes a light source circuit board.
  • the light source circuit board is disposed on the sidewall of the light guide plate, and the plurality of light sources are spaced apart from the light source circuit board.
  • the heat dissipation frame is aluminum extrusion.
  • the backlight module includes a reflective sheet, and the reflective sheet abuts against a bottom surface of the light guide plate, and the bearing portion abuts against the reflective sheet.
  • the surface of the carrying portion has a protrusion protruding from the light guiding direction of the light guide plate, and the protruding block abuts against the reflective sheet to increase the contact area of the reflective sheet with the atmosphere.
  • the light source is an LED light.
  • a liquid crystal display device including a liquid crystal panel.
  • the liquid crystal display device further includes a backlight module, and the backlight module includes a light guide plate, a heat dissipation frame, a light source, and a back frame. .
  • the light guide plate includes a light-emitting surface, a light-incident surface of the adjacent light-emitting surface and a bottom surface of the light-emitting surface;
  • the heat-dissipating frame includes a bearing portion and a sidewall extending from the edge of the bearing portion to the light-emitting direction, and the bearing portion abuts the bottom surface of the light guide plate
  • the edge of the supporting portion adjacent to the sidewall is provided with a through hole, the sidewall is adjacent to the light incident surface of the light guide plate;
  • the light incident surface of the light guide plate is disposed on the sidewall of the light guide plate, and the position of the light source is staggered from the through hole;
  • the bottom plate includes a rising portion extending from the edge of the bottom plate toward the light exiting direction, and the rising portion passes through the through hole, and the bottom plate abuts against the carrying portion.
  • the liquid crystal panel is disposed adjacent to the light emitting surface of the light guide plate, and the thickness of the rising portion is greater than the thickness of the light source, so that when the light guide plate is thermally expanded, the rising portion blocks the light guide plate from contacting the light source.
  • the backlight module is disposed on the liquid crystal display device, and the side of the sidewall away from the light source is exposed to the atmosphere.
  • the plurality of through holes are spaced apart from the edge of the side wall from the edge of the side wall, and a plurality of rising portions are formed to extend from the edge of the bottom plate to the light exiting direction, and the plurality of rising portions pass through the plurality of through holes.
  • the light source is plural, the plurality of light sources are spaced apart from each other on the side wall, and the gap between the adjacent two light sources corresponds to the position of the through hole, so that the positions of the plurality of light sources are staggered from the plurality of through holes.
  • the backlight module includes a light source circuit board.
  • the light source circuit board is disposed on the sidewall of the light guide plate, and the plurality of light sources are spaced apart from the light source circuit board.
  • the backlight module includes a reflective sheet, and the reflective sheet abuts against a bottom surface of the light guide plate, and the bearing portion abuts against the reflective sheet.
  • the surface of the carrying portion has a protrusion protruding from the light guiding direction of the light guide plate, and the protruding block abuts against the reflective sheet to increase the contact area of the reflective sheet with the atmosphere.
  • the heat dissipation frame is aluminum extrusion
  • the light source is an LED light
  • the backlight module and the liquid crystal display device of the embodiment of the present invention provide a through hole at an edge of the side wall of the heat sink frame adjacent to the side wall, and a light source is disposed on the side wall of the load bearing portion, and the position and the through hole of the light source are provided. Staggered, the erected portion of the back frame is passed through the through hole and the thickness of the erected portion is greater than the thickness of the light source, so that when the light guide plate is thermally expanded, the erected portion blocks the light guide plate from contacting the light source, preventing the light guide plate from damaging the light source, and extending the backlight mode The life of the group.
  • FIG. 1 is a partial cross-sectional view showing a backlight module of the prior art
  • FIG. 2 is a schematic cross-sectional view showing an embodiment of a backlight module of the present invention
  • FIG. 3 is a partial perspective view of the heat dissipation frame of the backlight module shown in FIG. 2;
  • FIG. 4 is a top plan view of the backlight module shown in FIG. 2;
  • FIG. 5 is a partial perspective view of the backlight module shown in FIG. 2.
  • FIG. 5 is a partial perspective view of the backlight module shown in FIG. 2.
  • FIG. 2 is a partial cross-sectional view of a backlight module according to an embodiment of the present invention.
  • the backlight module includes a light guide plate 210 , a heat dissipation frame 220 , a light source 230 , and a back frame 240 .
  • the light guide plate 210 includes a light exit surface 2101, a light incident surface 2102 adjacent to the light exit surface 2101, and a bottom surface 2103 opposite to the light exit surface 2101.
  • the heat dissipation frame 220 includes a carrying portion 2202 and a side wall 2201 extending from the edge of the carrying portion 2202 to the light guiding direction of the light guide plate 210.
  • the carrying portion 2202 is abutted against the bottom surface 2103 of the light guide plate 210, and the side wall 2201 is adjacent to the light incident surface of the light guide plate 210. 2102.
  • FIG. 3 is a partial perspective view of the heat dissipation frame of the backlight module shown in FIG. 2.
  • the heat dissipation frame 220 is extruded by aluminum, and the aluminum is extruded into an aluminum alloy by an extrusion process.
  • the heat dissipation frame 220 is provided with a through hole 2203.
  • the bearing portion 2202 is provided with a through hole 2203 adjacent to the edge of the side wall 2201.
  • the carrying portion 2202 is provided with a plurality of through holes 2203 spaced apart from the edge of the side wall 2201.
  • the light source 230 is disposed on the sidewall 2201 of the light incident surface 2102 of the light guide plate 210 , and the position of the light source 230 is offset from the through hole 2203 .
  • the back frame 240 includes a bottom plate 2401 and a rising portion 2402 extending from the edge of the bottom plate 2401 to the light exiting direction of the light guide plate 210.
  • the rising portion 2402 corresponds to the through hole 2203, and the bottom plate 2401 abuts against the receiving portion 2202.
  • the rising portion 2402 can block the light guide plate 210 from contacting the light source 230 to prevent the light guide plate 210 from crushing the light source 230, thereby protecting the light source 230 and extending the service life of the backlight module.
  • FIG. 5 is a partial perspective view of the backlight module shown in FIG. 2, as shown in the figure, a plurality of rising portions 2402 extending from the edge of the bottom plate 2401 toward the light-emitting direction
  • the plurality of rising portions 2402 correspondingly pass through the plurality of through holes 2203.
  • the plurality of light sources 230 are spaced apart from each other, and the plurality of light sources 230 are spaced apart from each other at the side wall 2201.
  • the gap between the adjacent two light sources 230 corresponds to the position of the through hole 2203, so that the positions of the plurality of light sources 230 and the plurality of through holes are 2203 staggered.
  • the backlight module further includes a light source circuit board 250 and a reflective sheet 260.
  • the light source circuit board 250 is disposed on the side wall 2201 opposite to the light incident surface of the light guide plate, and is disposed between the light source 230 and the side wall 2201.
  • the plurality of light sources 230 are spaced apart from the light source circuit board 250.
  • the light source is an LED lamp.
  • the reflection sheet 260 abuts against the bottom surface 2103 of the light guide plate 210, and the bearing portion 2202 abuts against the reflection sheet 260. Further, the surface of the carrying portion 2202 has a protrusion 2204 protruding from the light emitting direction of the light guide plate 210.
  • the bump 2204 abuts against the reflective sheet 260 for supporting the reflective sheet 260 and the light guide plate 210 to increase the contact of the reflective sheet 260 with the atmosphere. area.
  • the light guide plate 210 is supported by only one bump 2204. This structure increases the area of the reflective sheet 260 and the heat dissipation frame 220 exposed to the atmosphere, thereby increasing the heat dissipation area of the light guide plate 210 and the heat dissipation frame 220.
  • the raised bumps 2204 can be hollow structures to save material and reduce weight. Moreover, the number of the bumps 2204 can be set according to actual needs.
  • the present invention further provides a liquid crystal display device including a liquid crystal panel.
  • the liquid crystal display device adopts the backlight module of the above embodiment, and the liquid crystal panel is disposed adjacent to the light emitting surface 2101 of the light guide plate 210, and the backlight module is disposed on the liquid crystal display device.
  • the side of the side wall 2201 away from the light source 230 is exposed to the atmosphere to increase the heat dissipation area.
  • the backlight module and the liquid crystal display device of the present invention adopt a plurality of through holes disposed at the edge of the carrying portion of the heat dissipating frame adjacent to the side wall, and a plurality of light sources are disposed on the side wall of the carrying portion, and the position and the through hole of the light source are provided.
  • Staggered, a plurality of erect portions of the back frame pass through the through holes, and the thickness of the erect portion is greater than the thickness of the light source, so that when the light guide plate is thermally expanded, the erect portion can block the light guide plate from contacting the light source, and the light guide plate is prevented from crushing the light source. Extend the life of the backlight module.

Landscapes

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

Description

一种背光模组及液晶显示装置
【技术领域】
本发明涉及液晶显示技术领域，特别是涉及一种背光模组及液晶显示装置。
【背景技术】
对于液晶显示装置，由于液晶面板自身不能发光，需要利用背光模组才能产生显示的功能。背光模组性能的好坏，往往会直接影响液晶显示装置的显像品质。因此，背光模组成为液晶显示装置中重要的部分。
当前的背光模组通常采用侧入式背光方式，所谓侧入式背光方式是指LED灯条置于导光板的一侧，光线由侧面入射导光板，通过导光板将线光源转为均匀面光源。请参阅图1，图1是现有技术一种背光模组的部分截面示意图。背光模组包括背框110、散热框120、导光板130以及LED灯140。散热框120与背框110叠合在一起，LED灯140设置于散热框120正对导光板130侧面的位置。该背光模组采用侧入式背光方式，LED灯140与导光板130之间需要维持一定的间隙，以保证偶光效率以及防止mura现象（即色度不均匀）的发生。
但是，现有技术的背光模组在工作过程中，导光板130会受热发生膨胀，LED灯140与导光板130之间的距离又比较小，这样会导致导光板130压在LED灯140表面破坏LED灯140，严重影响了背光模组的寿命。
【发明内容】
本发明主要解决的技术问题是提供一种背光模组及液晶显示装置，能够在导光板受热膨胀时，阻挡导光板接触光源，防止导光板压坏光源。
为解决上述技术问题，本发明采用的一个技术方案是：提供一种背光模组，包括导光板、反射片、散热框、、光源电路板、多个光源和背框。导光板包括出光面，相邻出光面的入光面以及相对出光面的底面；反射片抵靠导光板的底面；散热框包括承载部以及从承载部的边缘向出光方向弯折延伸的侧壁，承载部抵靠反射片，且承载部邻近侧壁的边缘设置有多个通孔，侧壁邻近导光板的入光面；光源电路板正对导光板的入光面设置于侧壁上；多个光源正对导光板的入光面间隔设置于光源电路板上，且相邻两个光源之间的间隙对应于通孔的位置，以使得多个光源的位置与多个通孔错开；背框包括底板以及从底板的边缘向出光方向弯折延伸的间隔设置的多个竖起部，多个竖起部对应穿过多个通孔，底板抵靠承载部；其中，竖起部的厚度大于光源的厚度，以使得导光板受热膨胀时，竖起部阻挡导光板接触光源。
其中，散热框为铝挤。
其中，承载部的表面具有向导光板出光方向凸起的凸块，凸块抵靠反射片，以增加反射片与大气的接触面积。
其中，光源为LED灯。
为解决上述技术问题，本发明采用的一个技术方案是：提供一种背光模组，包括导光板、散热框、光源和背框。导光板包括出光面，相邻出光面的入光面以及相对出光面的底面；散热框包括承载部以及从承载部的边缘向出光方向弯折延伸的侧壁，承载部抵靠导光板的底面，且承载部邻近侧壁的边缘设置有通孔，侧壁邻近导光板的入光面；光源正对导光板的入光面设置于侧壁上，且光源的位置与通孔错开；背框包括底板以及从底板的边缘向出光方向弯折延伸的竖起部，竖起部穿过通孔，底板抵靠承载部；竖起部的厚度大于光源的厚度，以使得导光板受热膨胀时，竖起部阻挡导光板接触光源。
其中，承载部邻近侧壁的边缘间隔设置有多个通孔，从底板的边缘向出光方向弯折延伸有间隔设置的多个竖起部，多个竖起部对应穿过多个通孔。
其中，光源为多个，多个光源间隔设置于侧壁，相邻两个光源之间的间隙对应于通孔的位置，以使得多个光源的位置与多个通孔错开。
其中，背光模组包括光源电路板，光源电路板正对导光板的入光面设置于侧壁上，多个光源间隔设置于光源电路板。
其中，散热框为铝挤。
其中，背光模组包括反射片，反射片抵靠导光板的底面，承载部抵靠反射片。
其中，承载部的表面具有向导光板出光方向凸起的凸块，凸块抵靠反射片，以增加反射片与大气的接触面积。
其中，光源为LED灯。
为解决上述技术问题，本发明采用的另一个技术方案是，提供一种液晶显示装置，包括液晶面板，液晶显示装置还包括背光模组，背光模组包括导光板、散热框、光源和背框。导光板包括出光面，相邻出光面的入光面以及相对出光面的底面；散热框包括承载部以及从承载部的边缘向出光方向弯折延伸的侧壁，承载部抵靠导光板的底面，且承载部邻近侧壁的边缘设置有通孔，侧壁邻近导光板的入光面；光源正对导光板的入光面设置于侧壁上，且光源的位置与通孔错开；背框包括底板以及从底板的边缘向出光方向弯折延伸的竖起部，竖起部穿过通孔，底板抵靠承载部。其中，液晶面板邻近导光板的出光面设置，竖起部的厚度大于光源的厚度，以使得导光板受热膨胀时，竖起部阻挡导光板接触光源。
其中，设置于液晶显示装置的背光模组，侧壁远离光源的一侧暴露于大气中。
其中，承载部邻近侧壁的边缘间隔设置有多个通孔，从底板的边缘向出光方向弯折延伸有间隔设置的多个竖起部，多个竖起部对应穿过多个通孔。
其中，光源为多个，多个光源间隔设置于侧壁，相邻两个光源之间的间隙对应于通孔的位置，以使得多个光源的位置与多个通孔错开。
其中，背光模组包括光源电路板，光源电路板正对导光板的入光面设置于侧壁上，多个光源间隔设置于光源电路板。
其中，背光模组包括反射片，反射片抵靠导光板的底面，承载部抵靠反射片。
其中，承载部的表面具有向导光板出光方向凸起的凸块，凸块抵靠反射片，以增加反射片与大气的接触面积。
其中，散热框为铝挤，光源为LED灯。
综上所述，本发明实施方式的背光模组及液晶显示装置通过在散热框的承载部邻近侧壁的边缘设置通孔，以及在承载部的侧壁上设置光源，光源的位置与通孔错开，使背框的竖起部穿过通孔并且竖起部的厚度大于光源的厚度，使得导光板受热膨胀时，竖起部阻挡导光板接触光源，防止导光板压坏光源，延长背光模组的寿命。
上述说明仅是本发明技术方案的概述，为了能够更清楚了解本发明的技术手段，而可依照说明书的内容予以实施，并且为了让本发明的上述和其他目的、特征和优点能够更明显易懂，以下特举较佳实施例，并配合附图，详细说明如下。
【附图说明】
图1是现有技术一种背光模组的部分截面示意图；
图2是本发明背光模组一实施方式的截面示意图；
图3是图2所示的背光模组的散热框的局部立体示意图；
图4是图2所示的背光模组的俯视示意图；
图5是图2所示的背光模组的局部立体示意图。
【具体实施方式】
下面将结合本发明实施例中的附图，对本发明实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，均属于本发明保护的范围。
请参阅图2，图2是本发明实施方式一种背光模组的局部截面示意图，该背光模组包括导光板210、散热框220、光源230和背框240。导光板210包括出光面2101，相邻出光面2101的入光面2102以及相对出光面2101的底面2103。散热框220包括承载部2202以及从承载部2202的边缘向导光板210出光方向弯折延伸的侧壁2201，承载部2202抵靠导光板210的底面2103，侧壁2201邻近导光板210的入光面2102。
请一并参阅图3, 图3是图2所示的背光模组的散热框的局部立体示意图。在本实施方式中，散热框220为铝挤，铝挤为铝合金采用挤压工艺成型。散热框220上设有通孔2203，具体地，承载部2202邻近侧壁2201的边缘设置有通孔2203。在本实施方式中，承载部2202邻近侧壁2201的边缘间隔设置有多个通孔2203。
请再参阅图2，光源230正对于导光板210的入光面2102设置于侧壁2201上，且光源230的位置与通孔2203错开。背框240包括底板2401以及从底板2401的边缘向导光板210出光方向弯折延伸的竖起部2402，竖起部2402对应穿过通孔2203，底板2401抵靠承载部2202。
请一并参照图4，图4是图2所示的背光模组的俯视示意图，如图中所示，竖起部2402的厚度l大于光源230的厚度m，以使得导光板210受热膨胀时，竖起部2402能够阻挡导光板210接触光源230，以防止导光板210压坏光源230，进而保护光源230，延长背光模组的使用寿命。
请一并参照图5，图5是图2所示的背光模组的局部立体示意图，如图所示，从底板2401的边缘向出光方向弯折延伸有间隔设置的多个竖起部2402，多个竖起部2402对应穿过多个通孔2203。并且，光源230为多个，多个光源230间隔设置于侧壁2201，相邻两个光源230之间的间隙对应于通孔2203的位置，以使得多个光源230的位置与多个通孔2203错开。
请再参阅图2，背光模组还包括光源电路板250和反射片260。光源电路板250正对导光板的入光面设置于侧壁2201上，位于光源230和侧壁2201之间，多个光源230间隔设置于光源电路板250上。在本实施方式中，光源为LED灯。反射片260抵靠导光板210的底面2103，承载部2202抵靠反射片260。进一步的，承载部2202的表面具有向导光板210出光方向凸起的凸块2204，凸块2204抵靠反射片260，用以支撑反射片260和导光板210，以增加反射片260与大气的接触面积。导光板210只由一个凸块2204支撑，此种结构增大了反射片260及散热框220暴露于大气中的面积，从而增大导光板210与散热框220的散热面积。凸起的凸块2204可以为中空结构，以节省材料，减轻重量。并且，凸块2204的数量可以根据实际需要进行设置。
此外，本发明还提供一种液晶显示装置，包括液晶面板，液晶显示装置采用上述实施方式的背光模组，并且液晶面板邻近导光板210的出光面2101设置，在背光模组设置于液晶显示装置时，侧壁2201远离光源230的一侧暴露于大气中，以增大散热面积。
通过上述方式，本发明的背光模组及液晶显示装置采用在散热框的承载部邻近侧壁的边缘设置多个通孔，在承载部的侧壁上设置多个光源，光源的位置与通孔错开，背框的多个竖起部穿过通孔，并且竖起部的厚度大于光源的厚度，使得导光板受热膨胀时，竖起部能够阻挡导光板接触光源，防止导光板压坏光源，延长背光模组的寿命。
以上所述仅为本发明的实施例，并非因此限制本发明的专利范围，凡是利用本发明说明书及附图内容所作的等效结构或等效流程变换，或直接或间接运用在其他相关的技术领域，均同理包括在本发明的专利保护范围内。

Claims (20)

  1. 一种背光模组，其中，包括：
    导光板，所述导光板包括出光面，相邻所述出光面的入光面以及相对所述出光面的底面；
    反射片，所述反射片抵靠所述导光板的底面；
    散热框，所述散热框包括承载部以及从所述承载部的边缘向出光方向弯折延伸的侧壁，所述承载部抵靠所述反射片，且所述承载部邻近所述侧壁的边缘设置有多个通孔，所述侧壁邻近所述导光板的入光面；
    光源电路板，所述光源电路板正对所述导光板的入光面设置于所述侧壁上；
    多个光源，多个所述光源正对所述导光板的入光面间隔设置于所述光源电路板上，且相邻两个所述光源之间的间隙对应于所述通孔的位置，以使得多个所述光源的位置与多个所述通孔错开；
    背框，所述背框包括底板以及从所述底板的边缘向所述出光方向弯折延伸的间隔设置的多个竖起部，多个所述竖起部对应穿过多个所述通孔，所述底板抵靠所述承载部；
    其中，所述竖起部的厚度大于所述光源的厚度，以使得所述导光板受热膨胀时，所述竖起部阻挡所述导光板接触所述光源。
  2. 根据权利要求1所述的背光模组，其中，所述散热框为铝挤。
  3. 根据权利要求1所述的背光模组，其中，所述承载部的表面具有向所述导光板出光方向凸起的凸块，所述凸块抵靠所述反射片，以增加所述反射片与大气的接触面积。
  4. 根据权利要求1所述的背光模组，其中，所述光源为LED灯。
  5. 一种背光模组，其中，包括：
    导光板，所述导光板包括出光面，相邻所述出光面的入光面以及相对所述出光面的底面；
    散热框，所述散热框包括承载部以及从所述承载部的边缘向出光方向弯折延伸的侧壁，所述承载部抵靠所述导光板的底面，且所述承载部邻近所述侧壁的边缘设置有通孔，所述侧壁邻近所述导光板的入光面；
    光源，所述光源正对所述导光板的入光面设置于所述侧壁上，且所述光源的位置与所述通孔错开；
    背框，所述背框包括底板以及从所述底板的边缘向所述出光方向弯折延伸的竖起部，所述竖起部穿过所述通孔，所述底板抵靠所述承载部；
    其中，所述竖起部的厚度大于所述光源的厚度，以使得所述导光板受热膨胀时，所述竖起部阻挡所述导光板接触所述光源。
  6. 根据权利要求5所述的背光模组，其中，所述承载部邻近所述侧壁的边缘间隔设置有多个所述通孔，从所述底板的边缘向出光方向弯折延伸有间隔设置的多个所述竖起部，多个所述竖起部对应穿过多个所述通孔。
  7. 根据权利要求6所述的背光模组，其中，所述光源为多个，多个所述光源间隔设置于所述侧壁，相邻两个所述光源之间的间隙对应于所述通孔的位置，以使得多个所述光源的位置与多个所述通孔错开。
  8. 根据权利要求7所述的背光模组，其中，所述背光模组包括光源电路板，所述光源电路板正对所述导光板的入光面设置于所述侧壁上，多个所述光源间隔设置于所述光源电路板。
  9. 根据权利要求5所述的背光模组，其中，所述散热框为铝挤。
  10. 根据权利要求5所述的背光模组，其中，所述背光模组包括反射片，所述反射片抵靠所述导光板的底面，所述承载部抵靠所述反射片。
  11. 根据权利要求10所述的背光模组，其中，所述承载部的表面具有向所述导光板出光方向凸起的凸块，所述凸块抵靠所述反射片，以增加所述反射片与大气的接触面积。
  12. 根据权利要求5所述的背光模组，其中，所述光源为LED灯。
  13. 一种液晶显示装置，包括液晶面板，其中，所述液晶显示装置还包括背光模组，所述背光模组包括：
    导光板，所述导光板包括出光面，相邻所述出光面的入光面以及相对所述出光面的底面；
    散热框，所述散热框包括承载部以及从所述承载部的边缘向出光方向弯折延伸的侧壁，所述承载部抵靠所述导光板的底面，且所述承载部邻近所述侧壁的边缘设置有通孔，所述侧壁邻近所述导光板的入光面；
    光源，所述光源正对所述导光板的入光面设置于所述侧壁上，且所述光源的位置与所述通孔错开；
    背框，所述背框包括底板以及从所述底板的边缘向所述出光方向弯折延伸的竖起部，所述竖起部穿过所述通孔，所述底板抵靠所述承载部；
    其中，所述液晶面板邻近所述导光板的出光面设置，所述竖起部的厚度大于所述光源的厚度，以使得所述导光板受热膨胀时，所述竖起部阻挡所述导光板接触所述光源。
  14. 根据权利要求13所述的液晶显示装置，其中，所述背光模组设置于所述液晶显示装置时，所述侧壁远离所述光源的一侧暴露于大气中。
  15. 根据权利要求13所述的液晶显示装置，其中，所述承载部邻近所述侧壁的边缘间隔设置有多个所述通孔，从所述底板的边缘向出光方向弯折延伸有间隔设置的多个所述竖起部，多个所述竖起部对应穿过多个所述通孔。
  16. 根据权利要求15所述的液晶显示装置，其中，所述光源为多个，多个所述光源间隔设置于所述侧壁，相邻两个所述光源之间的间隙对应于所述通孔的位置，以使得多个所述光源的位置与多个所述通孔错开。
  17. 根据权利要求16所述的液晶显示装置，其中，所述背光模组包括光源电路板，所述光源电路板正对所述导光板的入光面设置于所述侧壁上，多个所述光源间隔设置于所述光源电路板。
  18. 根据权利要求13所述的液晶显示装置，其中，所述背光模组包括反射片，所述反射片抵靠所述导光板的底面，所述承载部抵靠所述反射片。
  19. 根据权利要求18所述的液晶显示装置，其中，所述承载部的表面具有向所述导光板出光方向凸起的凸块，所述凸块抵靠所述反射片，以增加所述反射片与大气的接触面积。
  20. 根据权利要求13所述的液晶显示装置，其中，所述散热框为铝挤，所述光源为LED灯。
PCT/CN2012/079230 2012-07-24 2012-07-27 一种背光模组及液晶显示装置 Ceased WO2014015506A1 (zh)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE112012006584.0T DE112012006584B4 (de) 2012-07-24 2012-07-27 Hintergrundbeleuchtungsmodul und Flüssigkristallanzeigevorrichtung
US13/580,136 US8834006B2 (en) 2012-07-24 2012-07-27 Backlight module and liquid crystal display device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201210257784.7 2012-07-24
CN201210257784.7A CN102818185B (zh) 2012-07-24 2012-07-24 一种背光模组及液晶显示装置

Publications (1)

Publication Number Publication Date
WO2014015506A1 true WO2014015506A1 (zh) 2014-01-30

Family

ID=47302490

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2012/079230 Ceased WO2014015506A1 (zh) 2012-07-24 2012-07-27 一种背光模组及液晶显示装置

Country Status (3)

Country Link
CN (1) CN102818185B (zh)
DE (1) DE112012006584B4 (zh)
WO (1) WO2014015506A1 (zh)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10239255B2 (en) 2017-04-11 2019-03-26 Molecule Corp Fabrication of solid materials or films from a polymerizable liquid
CN109903688A (zh) * 2019-02-26 2019-06-18 太龙智显科技（深圳）有限公司 户外智能灯杆屏及其led箱体
CN112946956A (zh) * 2021-03-16 2021-06-11 京东方科技集团股份有限公司 背板、框架结构、背光模组和显示装置

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103148413A (zh) * 2013-02-18 2013-06-12 京东方科技集团股份有限公司 一种背光模组及显示装置
CN104238184B (zh) * 2013-06-14 2018-02-09 群创光电股份有限公司 背光单元及包含该背光单元的显示装置
CN103335253B (zh) * 2013-07-18 2015-03-11 深圳市华星光电技术有限公司 背光模组及包含其的液晶显示器
CN103672816A (zh) * 2013-12-20 2014-03-26 深圳市华星光电技术有限公司 一种背光模组及其散热装置
CN104570477A (zh) * 2014-12-26 2015-04-29 深圳市华星光电技术有限公司 背光模组及显示装置
CN107314285A (zh) * 2017-06-30 2017-11-03 武汉华星光电技术有限公司 背光模组及移动终端
US10514492B2 (en) 2017-06-30 2019-12-24 Wuhan China Star Optoelectronics Technology Co., Ltd. Backlight module and mobile terminal
CN107664876A (zh) 2017-10-25 2018-02-06 惠科股份有限公司 一种背光模组及液晶显示装置
JP2019109385A (ja) * 2017-12-19 2019-07-04 シャープ株式会社 表示装置
CN108388046A (zh) * 2018-02-05 2018-08-10 厦门天马微电子有限公司 背光模组、显示模组和显示装置
CN111965899B (zh) * 2020-09-09 2022-12-09 谷麦光电科技股份有限公司 一种组合式车载显示屏的背光结构

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101059623A (zh) * 2006-04-20 2007-10-24 三菱电机株式会社 面状光源装置
JP2010135297A (ja) * 2008-11-04 2010-06-17 Fujifilm Corp 面状照明装置
CN101887890A (zh) * 2009-05-13 2010-11-17 Lg伊诺特有限公司 发光模块、背光单元和显示设备
CN102003661A (zh) * 2010-11-03 2011-04-06 深圳市华星光电技术有限公司 侧入式背光模块及液晶显示器
CN102494276A (zh) * 2011-12-02 2012-06-13 深圳市华星光电技术有限公司 一种背光模组和液晶显示装置

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102287627A (zh) * 2010-06-21 2011-12-21 苏州璨宇光学有限公司 面光源装置及显示器
TWI437326B (zh) * 2010-12-30 2014-05-11 Au Optronics Corp 背光模組之導光板定位設計
CN102141222A (zh) * 2011-03-14 2011-08-03 深圳市华星光电技术有限公司 背光模组及其液晶显示器
US8608346B2 (en) * 2011-04-11 2013-12-17 Shenzhen China Star Optoelectronics Technology Co., Ltd. Backlight module and light guide plate fixture thereof
CN102155691B (zh) * 2011-04-11 2012-11-21 深圳市华星光电技术有限公司 背光模块及其导光板固定构造

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101059623A (zh) * 2006-04-20 2007-10-24 三菱电机株式会社 面状光源装置
JP2010135297A (ja) * 2008-11-04 2010-06-17 Fujifilm Corp 面状照明装置
CN101887890A (zh) * 2009-05-13 2010-11-17 Lg伊诺特有限公司 发光模块、背光单元和显示设备
CN102003661A (zh) * 2010-11-03 2011-04-06 深圳市华星光电技术有限公司 侧入式背光模块及液晶显示器
CN102494276A (zh) * 2011-12-02 2012-06-13 深圳市华星光电技术有限公司 一种背光模组和液晶显示装置

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10239255B2 (en) 2017-04-11 2019-03-26 Molecule Corp Fabrication of solid materials or films from a polymerizable liquid
US11267194B2 (en) 2017-04-11 2022-03-08 Molecule Corp Fabrication of solid materials or films from a polymerizable liquid
US12570782B2 (en) 2017-04-11 2026-03-10 Henkel Ag & Co. Kgaa Fabrication of solid materials or films from a polymerizable liquid
CN109903688A (zh) * 2019-02-26 2019-06-18 太龙智显科技（深圳）有限公司 户外智能灯杆屏及其led箱体
CN112946956A (zh) * 2021-03-16 2021-06-11 京东方科技集团股份有限公司 背板、框架结构、背光模组和显示装置

Also Published As

Publication number Publication date
CN102818185B (zh) 2014-10-29
CN102818185A (zh) 2012-12-12
DE112012006584B4 (de) 2021-05-27
DE112012006584T5 (de) 2015-03-19

Similar Documents

Publication Publication Date Title
WO2014015506A1 (zh) 一种背光模组及液晶显示装置
WO2013159378A1 (zh) 背光模组及液晶显示装置
WO2013155676A1 (zh) 一种液晶显示装置
WO2014063364A1 (zh) 一种液晶显示装置及其背光模组
WO2016061831A1 (zh) 液晶显示装置及其背光模组
WO2014015487A1 (zh) 液晶显示装置及其背光模组和背板组件
WO2017206290A1 (zh) 背光模组以及液晶显示器
CN106154646B (zh) 一种灯板、背光模组及液晶显示装置
WO2015027718A1 (zh) 一种消除显示边框的显示装置
WO2014036723A1 (zh) 一种背光模组及液晶显示器
WO2017028358A1 (zh) 液晶显示装置及其背光模组
US9778508B2 (en) Liquid crystal display device and a backlight module thereof
WO2014063346A1 (zh) 一种液晶显示装置及其背光模组
WO2017193416A1 (zh) 液晶显示面板及液晶显示器
WO2014019243A1 (zh) 一种背光模组及液晶显示器
WO2016179873A1 (zh) 背光模组及液晶显示器
WO2013174032A1 (zh) 背光模组及液晶显示装置
WO2019010974A1 (zh) 一种背光模组及液晶显示装置
WO2019000711A1 (zh) 一种背光模组及液晶显示装置
WO2013185364A1 (zh) 面光源及显示装置
WO2020135459A1 (zh) 一种直下式背光模组及显示器
WO2013143181A1 (zh) 中框及液晶显示模组
WO2013152498A1 (zh) 一种背光模组及液晶显示装置
WO2017190384A1 (zh) 显示装置、背光单元及其安装支架
WO2014032273A1 (zh) 背光模组及散热装置

Legal Events

Date Code Title Description
WWE Wipo information: entry into national phase

Ref document number: 13580136

Country of ref document: US

121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 12881918

Country of ref document: EP

Kind code of ref document: A1

WWE Wipo information: entry into national phase

Ref document number: 1120120065840

Country of ref document: DE

Ref document number: 112012006584

Country of ref document: DE

122 Ep: pct application non-entry in european phase

Ref document number: 12881918

Country of ref document: EP

Kind code of ref document: A1