WO2013120288A1 - 背光模组及液晶显示器 - Google Patents

背光模组及液晶显示器 Download PDF

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Publication number
WO2013120288A1
WO2013120288A1 PCT/CN2012/071906 CN2012071906W WO2013120288A1 WO 2013120288 A1 WO2013120288 A1 WO 2013120288A1 CN 2012071906 W CN2012071906 W CN 2012071906W WO 2013120288 A1 WO2013120288 A1 WO 2013120288A1
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WO
WIPO (PCT)
Prior art keywords
backlight module
side wall
back plate
main body
light
Prior art date
Application number
PCT/CN2012/071906
Other languages
English (en)
French (fr)
Inventor
陈仕祥
周革革
Original Assignee
深圳市华星光电技术有限公司
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 深圳市华星光电技术有限公司 filed Critical 深圳市华星光电技术有限公司
Priority to DE112012005862.3T priority Critical patent/DE112012005862B4/de
Priority to US13/502,135 priority patent/US20140347598A1/en
Publication of WO2013120288A1 publication Critical patent/WO2013120288A1/zh

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Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0081—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
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21—LIGHTING
    • F21V—FUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V21/00—Supporting, suspending, or attaching arrangements for lighting devices; Hand grips
    • 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
    • G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
    • G02F1/133314—Back frames
    • 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
    • G02F1/133317—Intermediate frames, e.g. between backlight housing and front frame
    • 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
    • G02F1/133322—Mechanical guidance or alignment of LCD panel support components
    • 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
    • G02F1/133325—Assembling processes
    • 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
    • G02F1/133615—Edge-illuminating devices, i.e. illuminating from the side
    • 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
    • G02F2201/00—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00
    • G02F2201/46—Fixing elements

Definitions

  • the present invention relates to the field of liquid crystal display technologies, and in particular, to a backlight module and a liquid crystal display.
  • FIG. 1 is a prior art side light-emitting diode (Light Emitting).
  • the side-lit LED backlight module includes a front frame 11, a plastic frame 12, a light bar 13, a back plate 14, a light guide plate 15, and a thermal conductive adhesive 16.
  • the light bar 13 is fixed on the back plate 14 by the heat conductive adhesive 16, and in the process of bonding the light bar 13 to the back plate 14, it is generally difficult to ensure that the light bar 13 can be bonded to an accurate position.
  • the centering effect of the light bar 13 and the light guide plate 15 is affected, and the incident efficiency of the incident light entering the light guide plate 15 from the light bar 13 is lowered.
  • the bonding position cannot be accurately controlled; and the heat radiated by the light bar 13 during the operation causes the thermal conductive adhesive 16 to soften, resulting in the position of the light bar 13
  • the displacement causes a misalignment, and both of the above cases affect the centering effect of the light bar 13 and the light guide plate 15, thereby reducing the incidence efficiency of the light bar 13.
  • An object of the present invention is to provide a backlight module for solving the problem that the light bar is bonded to the back plate through the thermal conductive adhesive in the prior art, and the bonding position cannot be accurately controlled; and the heat emitted by the light bar during the working process makes the heat conduction
  • the softening of the glue causes the position of the light bar to move down and cause misalignment, affecting the centering effect of the light bar and the light guide plate, and reducing the technical problem of the incident efficiency of the light bar.
  • Another object of the present invention is to provide a liquid crystal display to solve the problem that the light bar is bonded to the back plate by the thermal conductive adhesive in the prior art, and the bonding position cannot be accurately controlled; and the heat emitted by the light bar during the working process makes the heat conduction
  • the softening of the glue causes the position of the light bar to move down and cause misalignment, affecting the centering effect of the light bar and the light guide plate, and reducing the technical problem of the incident efficiency of the light bar.
  • the present invention constructs a backlight module including a back plate, the back plate including a back plate main body, and side walls that are convex at both ends of the back plate main body and integrally formed with the back plate main body,
  • the sidewall includes a sidewall body, and an inner side of the sidewall is provided with a light emitting member;
  • the illuminating member includes a light bar, and the light bar is provided with a plurality of uniformly arranged light sources;
  • a support fixing member is disposed between the illuminating member and the back plate main body, and the supporting fixing member is formed by bending a portion of the side wall main body with respect to the side wall main body for supporting and fixing the illuminating Pieces.
  • the backlight module further includes an L-shaped bracket, the L-shaped bracket includes a first bracket strip attached to an outer side of the side wall, and a side of the main body of the back panel a second bracket strip, the portion of the first bracket strip being bent toward the inner side of the side wall and extending through the side wall to form the support fixing member.
  • the second bracket strip has a reinforcing length and is fixedly coupled to the backing plate body.
  • Another object of the present invention is to provide a backlight module to solve the problem that the light bar is bonded to the back plate through the thermal conductive adhesive in the prior art, and the bonding position cannot be accurately controlled; and the heat generated by the light bar during the working process makes The thermal conductive rubber softens, causing the position of the light bar to move down and causing misalignment, affecting the centering effect of the light bar and the light guide plate, and reducing the technical problem of the incident efficiency of the light bar.
  • the present invention constructs a backlight module including a back plate, the back plate includes a back plate main body, and is protruded along both ends of the back plate main body and integrally formed with the back plate main body. a side wall, the inner side of the side wall is provided with a light emitting member,
  • a support fixing member is disposed between the light emitting member and the back plate main body for supporting and fixing the light emitting member.
  • the side wall includes a side wall body, and a portion of the side wall main body is bent to form the support fixing member with respect to the side wall main body.
  • the backlight module further includes an L-shaped bracket, the L-shaped bracket includes a first bracket strip attached to an outer side of the side wall, and a side of the main body of the back panel a second bracket strip, the portion of the first bracket strip being bent toward the inner side of the side wall and extending through the side wall to form the support fixing member.
  • the second bracket strip has a reinforcing length and is fixedly coupled to the backing plate body.
  • the light emitting member includes a light bar, and the light bar is provided with a plurality of uniformly arranged light sources.
  • Another object of the present invention is to provide a liquid crystal display to solve the problem that the light bar is bonded to the back plate by the thermal conductive adhesive in the prior art, and the bonding position cannot be accurately controlled; and the heat emitted by the light bar during the working process makes the heat conduction
  • the softening of the glue causes the position of the light bar to move down and cause misalignment, affecting the centering effect of the light bar and the light guide plate, and reducing the technical problem of the incident efficiency of the light bar.
  • the present invention constructs a liquid crystal display
  • the liquid crystal display includes a backlight module
  • the backlight module includes a back plate
  • the back plate includes a back plate body, and along the back plate body a side wall which is convex at both ends and integrally formed with the back plate main body, and an inner side of the side wall is provided with a light emitting member;
  • a support fixing member is disposed between the light emitting member and the back plate main body for supporting and fixing the light emitting member.
  • the side wall includes a side wall main body, and a portion on the side wall main body is bent to form the support fixing member with respect to the side wall main body.
  • the backlight module further includes an L-shaped bracket, the L-shaped bracket includes a first bracket strip attached to an outer side of the side wall, and a first side of the main body of the back panel And a second bracket strip, wherein a portion of the first bracket strip is bent toward an inner side of the side wall and extends through the side wall to form the support fixing member.
  • the second holder strip has a reinforcing length and is fixedly coupled to the back sheet main body.
  • the illuminating member includes a light bar, and the light bar is provided with a plurality of uniformly arranged light sources.
  • the present invention provides a support fixing member between the illuminating member and the back plate main body, and the supporting fixing member supports and fixes the illuminating member, so that the illuminating member can be accurately fixed on the side wall of the back plate. Moreover, even if the heat emitted by the illuminating member during the working process softens the thermal conductive glue connected to the side wall of the backing plate, the position of the illuminating member can be ensured not to be misaligned, the centering effect of the illuminating member and the light guiding plate is ensured, and the illuminating is improved. Incident efficiency of the piece.
  • FIG. 1 is a schematic structural view of a backlight module in the prior art
  • FIG. 2 is a schematic structural view of a first preferred embodiment of a backlight module according to the present invention
  • FIG. 3 is a schematic view showing the connection of the backboard and the supporting fixture in the backlight module shown in FIG. 2;
  • FIG. 4 is a schematic structural view of a second preferred embodiment of a backlight module according to the present invention.
  • FIG. 5 is a schematic view showing the connection of the back plate, the support fixing member and the L-shaped bracket in the backlight module shown in FIG. 4.
  • FIG. 2 is a schematic structural view of a first preferred embodiment of a backlight module according to the present invention.
  • the backlight module includes a front frame 21, a plastic frame 22, a light-emitting member 23, a back plate 24, a light guide plate 25, a thermal conductive adhesive 26, and a support fixing member 27.
  • the front frame 21 is connected to the plastic frame 22, and the plastic frame 22 is used to carry a display screen (not shown).
  • the back plate 24 includes a back plate main body 240 and side walls 241 formed by protrusions at both ends of the back plate main body 240, and the side walls 241 are integrally formed with the back plate main body 240.
  • the illuminating member 23 is disposed inside the side wall 241.
  • the support fixture 27 is disposed between the light emitting member 23 and the back plate main body 240. The support fixture 27 is used to support and fix the light-emitting member 23.
  • FIG. 3 is a schematic diagram showing the connection of the backboard 24 and the supporting fixture 27 in the backlight module shown in FIG. 2.
  • the sidewall 241 includes a sidewall body 2411.
  • the support fixing member 27 is formed on both ends of the side wall main body 2411 along the direction A, and is formed by bending an upper portion of the side wall main body 2411 with respect to the side wall main body 2411.
  • the support fixing member 27 may be formed in the middle of the side wall main body 2411 along the direction A, as long as the light-emitting member 23 can be supported and fixed. .
  • the light-emitting member 23 includes a light bar 231 extending in a direction A, and the light bar 231 is provided with a plurality of uniformly arranged light sources 232.
  • the working principle of the first preferred embodiment of the backlight module shown in FIG. 2 is as follows:
  • the illuminating member 23 is bonded to the side wall 241 of the backboard 24 through the thermal conductive adhesive 26, and the illuminating member 23 is fixed on the supporting fixing member 27. And illuminating the light-emitting member 23 with the light guide plate 25.
  • the support fixture 27 can support and fix the light-emitting member 23, so that the light-emitting member 23 and the light guide plate 25 have a better center-to-center effect.
  • the illuminating member 23 When the illuminating member 23 emits light, even if the heat generated by the illuminating member 23 causes the thermal conductive adhesive 26 to soften, the illuminating member 23 does not shift misalignment due to the supporting and fixing action of the supporting fixing member 27. It is still ensured that the illuminating member 23 and the light guide plate 25 have a better centering effect, thereby improving the light incidence efficiency of the illuminating member 23.
  • FIG. 4 is a schematic structural view of a second preferred embodiment of a backlight module of the present invention.
  • the backlight module further includes an L-shaped bracket 30, and the L-shaped bracket 30 includes a first bracket strip 31 and a second bracket strip 32.
  • the first bracket strip 31 is attached to the outer side of the side wall 241, and the second bracket strip 32 is attached to the outer side of the backboard main body 240.
  • the backlight module further includes a nut 40 , and the second bracket strip 32 and the back plate body 240 are respectively provided with screw holes (not shown), and the nut 40 passes through the screw. Connecting the second bracket strip 32 and the screw hole on the back plate main body 240, so that the second bracket strip 32 and the back plate main body 240 are riveted, and of course, other fixed connection manners may be used. List one by one.
  • the second bracket strip 32 has a reinforcing length L3, and the second bracket strip 32 having a reinforcing length L3 can reinforce the backing plate 24 to ensure the flatness of the backlight module.
  • FIG. 5 is a schematic diagram showing the connection of the back plate 24, the support fixing member 27 and the L-shaped bracket 30 in the backlight module shown in FIG.
  • the length of the first bracket strip 31 extends in the direction A, wherein the length L1 of the first bracket strip 31 is greater than the length L2 of the side wall 241. At both ends of the length of the first bracket strip 31 along the direction A, a portion of the first bracket strip 31 is bent toward an inner side of the side wall 241, and the bent portion extends in the direction B through the side wall.
  • the support fixing member 27 is formed by 241.
  • the support fixtures 27 are formed on both ends of the first bracket strip 31 in the direction A.
  • the support fixing member 27 may also be formed on the first bracket strip 31 along the middle portion of the direction A, and the support fixing member 27 is to pass through the side wall 241. A through hole is required in the side wall 241.
  • the support fixing member 27 can be extended through the side wall 241 and the light-emitting member 23 is supported and fixed, it is within the scope of the present invention, and details are not described herein again.
  • the support fixture 27 can support and fix the light-emitting member 23, so that the light-emitting member 23 and the light guide plate 25 have a better center-of-gravity effect.
  • the illuminating member 23 When the illuminating member 23 emits light, even if the heat generated by the illuminating member 23 causes the thermal conductive adhesive 26 to soften, the illuminating member 23 does not shift due to the supporting and fixing action of the supporting fixing member 27.
  • the misalignment ensures that the illuminating member 23 and the light guide plate 25 have a better centering effect, thereby improving the light incident efficiency of the illuminating member 23.
  • the second bracket strip 32 has a reinforcing length L3
  • the second bracket strip 32 having the reinforcing length L3 can reinforce the backboard 24, thereby ensuring the flatness of the backlight module.
  • the present invention can accurately fix the illuminating member 23 by providing a supporting fixing member 27 between the illuminating member 23 and the backing plate main body 240, and supporting and fixing the illuminating member 23 by the supporting fixing member 27, and Even if the heat emitted by the illuminating member 23 during the operation causes the thermal conductive rubber 26 to soften, the position of the illuminating member 23 can be ensured that the position of the illuminating member 23 is not misaligned, and the illuminating member 23 and the light guiding plate 25 are ensured.
  • the good centering effect improves the light incidence efficiency of the illuminating member 23.

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

Abstract

一种背光模组及液晶显示器，该背光模组包括背板（24），该背板（24）包括背板主体（240）及侧壁（241）。该侧壁（241）的内侧设有发光件（23），发光件（23）和背板主体（240）之间设置有一支撑固定件（27），用于支撑并固定所述发光件（23）。该背光模组及液晶显示器保证了发光件（23）和导光板（25）的对心效果，提高了发光件（23）的入射效率。

Description

背光模组及液晶显示器 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器。
 背景技术
随着液晶显示面板的不断发展和普及，对液晶显示面板内各部件的要求越来越高。
以背光模组为例，请参阅图1，图1为现有技术中侧入光式发光二极管（Light Emitting Diode，LED）背光模组的结构示意图。该侧入光式LED背光模组包括前框11、胶框12、灯条13、背板14、导光板15以及导热胶16等。
其中，灯条13通过导热胶16固定在背板14上，在将灯条13粘结到背板14的过程中，一般很难保证灯条13能够粘结到准确的位置。而一旦灯条13的位置发生偏移，将影响灯条13和导光板15的对心效果，进而导致从灯条13进入导光板15的入射光的入射效率降低。
另外，灯条13工作过程中会产生大量的热量，这些热量会导致导热胶16软化，进而造成灯条13的位置下移而出现错位，同样会影响灯条13和导光板15的对心效果，进而导致从灯条13进入导光板15的入射光的入射效率降低。
综上，由于灯条13通过导热胶16粘结在背板15上，粘结位置不能准确控制；以及灯条13在工作过程中散发的热量使得导热胶16软化，造成灯条13的位置下移而造成错位，上述两种情况都影响灯条13和导光板15的对心效果，进而降低灯条13的入射效率。
 技术问题
本发明的一个目的在于提供一种背光模组，以解决现有技术中灯条通过导热胶粘结在背板上，粘结位置不能准确控制；以及灯条在工作过程中散发的热量使得导热胶软化，造成灯条的位置下移而造成错位，影响灯条和导光板的对心效果，降低了灯条的入射效率的技术问题。
本发明的又一个目的在于提供一种液晶显示器，以解决现有技术中灯条通过导热胶粘结在背板上，粘结位置不能准确控制；以及灯条在工作过程中散发的热量使得导热胶软化，造成灯条的位置下移而造成错位，影响灯条和导光板的对心效果，降低了灯条的入射效率的技术问题。
 技术解决方案
本发明构造了一种背光模组，包括背板，所述背板包括背板主体，以及在所述背板主体的两端凸起并与所述背板主体一体成型的侧壁，所述侧壁包括侧壁主体，所述侧壁的内侧设置有发光件；
所述发光件包括灯条，所述灯条上设置有多个均匀排列的光源；
所述发光件和所述背板主体之间设置有一支撑固定件，所述支撑固定件由所述侧壁主体上的部分相对所述侧壁主体弯折形成，用于支撑并固定所述发光件。
在本发明的背光模组中，所述背光模组还包括一L型支架，所述L型支架包括贴合所述侧壁外侧的第一支架条，以及贴合所述背板主体外侧的第二支架条，所述第一支架条上的部分向所述侧壁内侧方向弯折、并延伸通过所述侧壁形成所述支撑固定件。
在本发明的背光模组中，所述第二支架条具有一补强长度，并与所述背板主体固定连接。
本发明的另一个目的在于提供一种背光模组，以解决现有技术中灯条通过导热胶粘结在背板上，粘结位置不能准确控制；以及灯条在工作过程中散发的热量使得导热胶软化，造成灯条的位置下移而造成错位，影响灯条和导光板的对心效果，降低了灯条的入射效率的技术问题。
为解决上述问题，本发明构造了一种背光模组，包括背板，所述背板包括背板主体，以及沿所述背板主体的两端凸起并与所述背板主体一体成型的侧壁，所述侧壁的内侧设置有发光件，
所述发光件和所述背板主体之间设置有一支撑固定件，用于支撑并固定所述发光件。
在本发明的背光模组中，所述侧壁包括侧壁主体，所述侧壁主体上的部分相对所述侧壁主体弯折形成所述支撑固定件。
在本发明的背光模组中，所述背光模组还包括一L型支架，所述L型支架包括贴合所述侧壁外侧的第一支架条，以及贴合所述背板主体外侧的第二支架条，所述第一支架条上的部分向所述侧壁内侧方向弯折、并延伸通过所述侧壁形成所述支撑固定件。
在本发明的背光模组中，所述第二支架条具有一补强长度，并与所述背板主体固定连接。
在本发明的背光模组中，所述发光件包括灯条，所述灯条上设置有多个均匀排列的光源。
本发明的又一个目的在于提供一种液晶显示器，以解决现有技术中灯条通过导热胶粘结在背板上，粘结位置不能准确控制；以及灯条在工作过程中散发的热量使得导热胶软化，造成灯条的位置下移而造成错位，影响灯条和导光板的对心效果，降低了灯条的入射效率的技术问题。
为解决上述问题，本发明构造了一种液晶显示器，所述液晶显示器包括一背光模组，所述背光模组包括背板，所述背板包括背板主体，以及沿所述背板主体的两端凸起并与所述背板主体一体成型的侧壁，所述侧壁的内侧设置有发光件；
所述发光件和所述背板主体之间设置有一支撑固定件，用于支撑并固定所述发光件。
在本发明的液晶显示器中，所述侧壁包括侧壁主体，所述侧壁主体上的部分相对所述侧壁主体弯折形成所述支撑固定件。
在本发明的液晶显示器中，所述背光模组还包括一L型支架，所述L型支架包括贴合所述侧壁外侧的第一支架条，以及贴合所述背板主体外侧的第二支架条，所述第一支架条上的部分向所述侧壁内侧方向弯折、并延伸通过所述侧壁形成所述支撑固定件。
在本发明的液晶显示器中，所述第二支架条具有一补强长度，并与所述背板主体固定连接。
在本发明的液晶显示器中，所述发光件包括灯条，所述灯条上设置有多个均匀排列的光源。
 有益效果
本发明相对于现有技术，通过在发光件和背板主体之间设置一支撑固定件，该支撑固定件支撑并固定所述发光件，可以准确地将发光件固定在背板的侧壁上，而且即使发光件在工作过程中散发的热量使得其连接背板侧壁的导热胶软化，也能够保证发光件的位置不发生错位，保证了发光件和导光板的对心效果，提高了发光件的入射效率。
 附图说明
图1为现有技术中背光模组的结构示意图；
图2为本发明中背光模组的第一较佳实施例的结构示意图；
图3为图2所示的背光模组中背板和支撑固定件的连接示意图；
图4为本发明中背光模组的第二较佳实施例的结构示意图；
图5为图4所示的背光模组中背板、支撑固定件以及L型支架的连接示意图。
 本发明的最佳实施方式
以下各实施例的说明是参考附加的图式，用以例示本发明可用以实施的特定实施例。
请参阅图2，图2为本发明中背光模组的第一较佳实施例的结构示意图。
所述背光模组包括前框21、胶框22、发光件23、背板24、导光板25、导热胶26以及支撑固定件27。
其中，所述前框21连接所述胶框22，所述胶框22用于承载显示屏（图未示出）。所述背板24包括背板主体240和侧壁241，所述侧壁241由所述背板主体240的两端凸起所形成，所述侧壁241与所述背板主体240一体成型。所述发光件23设置在所述侧壁241的内侧。所述支撑固定件27设置在所述发光件23和所述背板主体240之间。所述支撑固定件27用于支撑并固定所述发光件23。
请参阅图3，图3为图2所示的背光模组中背板24和支撑固定件27的连接示意图。
所述侧壁241包括侧壁主体2411。所述支撑固定件27形成于所述侧壁主体2411上沿所述方向A的两端，并由所述侧壁主体2411上部分相对所述侧壁主体2411弯折形成。
当然，在具体实施过程中，所述支撑固定件27还可形成于所述侧壁主体2411沿所述方向A的中间，只要能够支撑固定所述发光件23即可，此处不一一列举。
请继续参阅图3，所述发光件23包括灯条231，所述灯条231沿方向A延伸，所述灯条231上设置有多个均匀排列的光源232。
图2所示的背光模组的第一较佳实施例的工作原理为：
请一并参阅图2和图3，将所述发光件23通过导热胶26粘结在所述背板24的侧壁241上，同时使得所述发光件23固定在所述支撑固定件27上，并使得所述发光件23对齐所述导光板25。这样，所述支撑固定件27可支撑并固定所述发光件23，使得所述发光件23和所述导光板25具有较佳的对心效果。
所述发光件23发光时，即便是所述发光件23产生的热量使得所述导热胶26软化，但是由于所述支撑固定件27的支撑固定作用，所述发光件23不会偏移错位，仍保证了所述发光件23和所述导光板25具有较佳的对心效果，进而提高了所述发光件23的光线入射效率。
图4为本发明中背光模组的第二较佳实施例的结构示意图。
在图4所示的第二较佳实施例中，所述背光模组还包括一L型支架30，所述L型支架30包括第一支架条31和第二支架条32。所述第一支架条31贴合所述侧壁241外侧，所述第二支架条32贴合所述背板主体240外侧。
请继续参阅图4，所述背光模组还包括螺母40，所述第二支架条32与所述背板主体240上均设置有螺孔（图未标示），所述螺母40穿过并螺接所述第二支架条32与所述背板主体240上的螺孔，使得所述第二支架条32与所述背板主体240铆接，当然也可以是其它的固定连接方式，此处不一一列举。
所述第二支架条32具有一补强长度L3，具有补强长度L3的所述第二支架条32可补强所述背板24，以保证背光模组的平整度。
请参阅图5，图5为图4所示的背光模组中背板24、支撑固定件27以及L型支架30的连接示意图。
所述第一支架条31的长度沿方向A延伸，其中，第一支架条31的长度L1大于所述侧壁241的长度L2。在所述第一支架条31的长度沿方向A的两端，所述第一支架条31的部分向所述侧壁241内侧方向弯折，该弯折部分沿方向B延伸通过所述侧壁241形成所述支撑固定件27。
在图5所示的实施例中，所述支撑固定件27形成于所述第一支架条31上沿所述方向A的两端。在具体实施过程中，所述支撑固定件27还可以形成于所述第一支架条31上沿所述方向A的中间部分，此时所述支撑固定件27若要穿过所述侧壁241，需要在所述侧壁241上开设通孔。当然只要能使得所述支撑固定件27延伸穿过所述侧壁241，并支撑固定所述发光件23，均在本发明保护范围之内，此处不再详细赘述。
图4所示的背光模组的第二较佳实施例的工作原理为：
请一并参阅图4和图5，在将所述发光件23通过导热胶26粘结在所述背板24的侧壁241上时，同时使得所述发光件23固定在所述支撑固定件27上，并使得所述发光件23对齐所述导光板25。这样，所述支撑固定件27可支撑并固定所述发光件23，从而使得所述发光件23和所述导光板25具有较佳的对心效果。
所述发光件23在发光时，即便是所述发光件23产生的热量使得所述导热胶26软化，但是由于所述支撑固定件27的支撑固定作用，所述发光件23也不会偏移错位，仍保证了所述发光件23和所述导光板25具有较佳的对心效果，进而提高了所述发光件23的光线入射效率。
而且，由于所述第二支架条32具有一补强长度L3，具有补强长度L3的所述第二支架条32可补强所述背板24，保证了背光模组的平整度。
本发明通过在所述发光件23和所述背板主体240之间设置一支撑固定件27，通过该支撑固定件27支撑并固定所述发光件23，可以准确地将发光件23固定，而且即使所述发光件23在工作过程中散发的热量使得所述导热胶26软化，也能够保证所述发光件23的位置不发生错位，保证了所述发光件23和所述导光板25具有较佳的对心效果，提高了所述发光件23的光线入射效率。
综上所述，虽然本发明已以优选实施例揭露如上，但上述优选实施例并非用以限制本发明，本领域的普通技术人员，在不脱离本发明的精神和范围内，均可作各种更动与润饰，因此本发明的保护范围以权利要求界定的范围为准。
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Claims (13)

  1. 一种背光模组，包括背板，所述背板包括背板主体，以及在所述背板主体的两端凸起并与所述背板主体一体成型的侧壁，所述侧壁包括侧壁主体，所述侧壁的内侧设置有发光件，其中：
    所述发光件包括灯条，所述灯条上设置有多个均匀排列的光源；
    所述发光件和所述背板主体之间设置有一支撑固定件，所述支撑固定件由所述侧壁主体上的部分相对所述侧壁主体弯折形成，用于支撑并固定所述发光件。
  2. 根据权利要求1所述的背光模组，其中，所述背光模组还包括一L型支架，所述L型支架包括贴合所述侧壁外侧的第一支架条，以及贴合所述背板主体外侧的第二支架条，所述第一支架条上的部分向所述侧壁内侧方向弯折、并延伸通过所述侧壁形成所述支撑固定件。
  3. 根据权利要求2所述的背光模组，其中，所述第二支架条具有一补强长度，并与所述背板主体固定连接。
  4. 一种背光模组，包括背板，所述背板包括背板主体，以及在所述背板主体的两端凸起并与所述背板主体一体成型的侧壁，所述侧壁的内侧设置有发光件，其中：
    所述发光件和所述背板主体之间设置有一支撑固定件，用于支撑并固定所述发光件。
  5. 根据权利要求4所述的背光模组，其中，所述侧壁包括侧壁主体，所述侧壁主体上的部分相对所述侧壁主体弯折形成所述支撑固定件。
  6. 根据权利要求4所述的背光模组，其中，所述背光模组还包括一L型支架，所述L型支架包括贴合所述侧壁外侧的第一支架条，以及贴合所述背板主体外侧的第二支架条，所述第一支架条上的部分向所述侧壁内侧方向弯折、并延伸通过所述侧壁形成所述支撑固定件。
  7. 根据权利要求6所述的背光模组，其中，所述第二支架条具有一补强长度，并与所述背板主体固定连接。
  8. 根据权利要求4所述的背光模组，其中，所述发光件包括灯条，所述灯条上设置有多个均匀排列的光源。
  9. 一种液晶显示器，其中，所述液晶显示器包括一背光模组，所述背光模组包括背板，所述背板包括背板主体，以及沿所述背板主体的两端凸起并与所述背板主体一体成型的侧壁，所述侧壁的内侧设置有发光件；
    所述发光件和所述背板主体之间设置有一支撑固定件，用于支撑并固定所述发光件。
  10. 根据权利要求9所述的液晶显示器，其中，所述侧壁包括侧壁主体，所述侧壁主体上的部分相对所述侧壁主体弯折形成所述支撑固定件。
  11. 根据权利要求9所述的液晶显示器，其中，所述背光模组还包括一L型支架，所述L型支架包括贴合所述侧壁外侧的第一支架条，以及贴合所述背板主体外侧的第二支架条，所述第一支架条上的部分向所述侧壁内侧方向弯折、并延伸通过所述侧壁形成所述支撑固定件。
  12. 根据权利要求11所述的液晶显示器，其中，所述第二支架条具有一补强长度，并与所述背板主体固定连接。
  13. 根据权利要求9所述的液晶显示器，其中，所述发光件包括灯条，所述灯条上设置有多个均匀排列的光源。
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