CN108563064A - Backlight module and its assemble method, display device - Google Patents
Backlight module and its assemble method, display device Download PDFInfo
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- CN108563064A CN108563064A CN201810012514.7A CN201810012514A CN108563064A CN 108563064 A CN108563064 A CN 108563064A CN 201810012514 A CN201810012514 A CN 201810012514A CN 108563064 A CN108563064 A CN 108563064A
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- 238000000034 method Methods 0.000 title claims abstract description 37
- 239000000463 material Substances 0.000 claims abstract description 70
- 239000012788 optical film Substances 0.000 claims abstract description 66
- 230000003287 optical effect Effects 0.000 claims description 5
- 239000002390 adhesive tape Substances 0.000 claims description 2
- 238000005516 engineering process Methods 0.000 abstract description 9
- 230000008569 process Effects 0.000 description 10
- 238000010586 diagram Methods 0.000 description 8
- 239000003292 glue Substances 0.000 description 8
- 238000005282 brightening Methods 0.000 description 7
- 230000009194 climbing Effects 0.000 description 7
- 238000009434 installation Methods 0.000 description 7
- 238000009792 diffusion process Methods 0.000 description 4
- 238000007373 indentation Methods 0.000 description 4
- 239000012528 membrane Substances 0.000 description 4
- 239000011265 semifinished product Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 239000004973 liquid crystal related substance Substances 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 239000000047 product Substances 0.000 description 2
- 230000000007 visual effect Effects 0.000 description 2
- 241000406668 Loxodonta cyclotis Species 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000005142 aphototropism Effects 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 235000013399 edible fruits Nutrition 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 230000003340 mental effect Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000011514 reflex Effects 0.000 description 1
- 238000012163 sequencing technique Methods 0.000 description 1
- 238000009987 spinning Methods 0.000 description 1
Classifications
-
- 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
- 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
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Mathematical Physics (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Planar Illumination Modules (AREA)
- Liquid Crystal (AREA)
Abstract
The invention discloses a kind of backlight module and its assemble method, display devices, belong to display technology field.The method includes：One backboard is provided；Light guide plate and framework are set on backboard, framework is located at the side of light guide plate, framework includes at least two positioning module between light guide plate and the display panel loading end of framework, each positioning module includes the accommodating chamber being superposed and positioning column, and the one end of positioning column far from accommodating chamber protrudes from display panel loading end；In the light emission side of light guide plate, optical film material is set；Pressure is applied to positioning column using the pressure head for being provided with shading rubber belt, positioning column is pressed into accommodating chamber, and shading rubber belt is attached on the fringe region and display panel loading end of optical film material；Wherein, the positioning column being pressed into after accommodating chamber is non-bulging in display panel loading end.There is light leakage phenomena in the edge that the present invention solves backlight module in the related technology, the problem for causing the reliability of display device relatively low.The present invention is used for the assembling of backlight module.
Description
Technical field
The present invention relates to display technology field, more particularly to a kind of backlight module and its assemble method, display device.
Background technology
Liquid crystal display (English：Liquid Crystal Display；Referred to as：LCD include) liquid crystal display panel and setting
Set the backlight module (English in LCD display back：Back Light), backlight module is generally divided into downward back optical mode
Group and side entrance back module.
In the related technology, in the assembling process of side entrance back module, semi-finished product group as shown in Figure 1 is generally first completed
Dress, the semi-finished product of backlight module include backboard 11, glue frame 12, light guide plate 13, reflection tape 14 and reflector plate 15；It then should be partly
Finished product is put into automation equipment to complete the assembling of optical film material and the attaching of shading rubber belt, wherein optical film material includes edge
The diffusion sheet and brightening piece that direction far from light guide plate is set gradually.Due to the requirement of the thickness of backlight module, set in automation
After the standby assembling for completing optical film material, between the upper surface of brightening piece and the display panel loading end M in glue frame 12 it is vertical away from
From very little, generally between 0.05~0.1 millimeter.
But the rotation of presence and automation equipment in an assembling process due to optical film material warpage issues itself
Action keeps optical film material subject to centrifugal forces, may cause optical film material that climbing occurs and (cross the display panel of glue frame
Loading end), after optical film material climbing, automation equipment can not fix optical film material when attaching shading rubber belt, optical film material and
Between shading rubber belt it is possible that gap causes the edge of backlight module light leakage phenomena occur, to cause display device to exist
The generation of the big visual angle edges Xia Shi light leakage phenomena, therefore the reliability of display device is relatively low.
Invention content
An embodiment of the present invention provides a kind of backlight module and its assemble method, display devices, can solve the relevant technologies
There is light leakage phenomena in the edge of middle backlight module, the problem for causing the reliability of display device relatively low.The technical solution is as follows：
In a first aspect, a kind of assemble method of backlight module is improved, the method includes：
One backboard is provided；
Light guide plate is set on the backboard and framework, the framework are located at the side of the light guide plate, the framework packet
At least two positioning modules between the light guide plate and the display panel loading end of the framework is included, each positioning
Module includes the accommodating chamber being superposed and positioning column, and the one end of the positioning column far from the accommodating chamber protrudes from the display
Panel loading end；
In the light emission side of the light guide plate, optical film material is set；
Pressure is applied to the positioning column using the pressure head for being provided with shading rubber belt, the positioning column is pressed into the appearance
It receives chamber, and the shading rubber belt is attached on the fringe region and the display panel loading end of the optical film material；
Wherein, it is non-bulging in the display panel loading end to be pressed into the positioning column after the accommodating chamber.
Optionally, the accommodating chamber is structure as a whole with the positioning column,
It is described that pressure is applied to the positioning column using the pressure head for being provided with shading rubber belt, the positioning column is pressed into institute
Accommodating chamber is stated, including：
Pressure is applied to the positioning column using the pressure head so that the accommodating chamber is disconnected with the positioning column junction
It splits, the positioning column is pressed into the accommodating chamber.
Optionally, the thickness range of the junction is 0.15~0.2 millimeter；
The altitude range that the positioning column protrudes the display panel loading end is 0.2~0.3 millimeter；
The depth bounds of the accommodating chamber are 0.4~0.7 millimeter.
Optionally, the difference range of the bed-plate dimension of the accommodating chamber and the bed-plate dimension of the positioning column is 0.2~0.4
Millimeter.
Optionally, the side of the accommodating chamber towards the positioning column is provided with opening, and the positioning column holding is described
Opening；
It is described that pressure is applied to the positioning column using the pressure head for being provided with shading rubber belt, the positioning column is pressed into institute
Accommodating chamber is stated, including：
Pressure is applied to the positioning column using the pressure head, the positioning column is pressed into the receiving from the opening
Chamber.
Optionally, the accommodating chamber is circular cylindrical cavity, and the positioning column is cylindrical structure；
Alternatively, the accommodating chamber is cube cylindrical chamber, the positioning column is cube rod structure.
Optionally, the optical diaphragm includes positioning tab,
The positioning module is arranged in a one-to-one correspondence with the positioning tab.
Optionally, the framework is rectangular box, and at least two positioning module includes four positioning modules,
Four positioning modules are separately positioned on four square positions of the framework.
Second aspect, provides a kind of backlight module, and the backlight module includes：
Backboard, framework, light guide plate, optical film material and shading rubber belt, the framework and the light guide plate are arranged in the back of the body
On plate, the framework is arranged in the side of the light guide plate, and the light emission side in the light guide plate is arranged in the optical film material, described
Shading rubber belt is attached on the fringe region of the optical film material and the display panel loading end of the framework；
Wherein, the framework includes at least two positioning between the light guide plate and the display panel loading end
Module, each positioning module include accommodating chamber and positioning column, and each positioning module is by being located at the receiving
The positioning column that on chamber and one end protrudes from the display panel loading end applies pressure so that described in the positioning column indentation
The structure that accommodating chamber is formed.
The third aspect, provides a kind of display device, and the display device includes：Backlight module described in second aspect.
The advantageous effect that technical solution provided in an embodiment of the present invention is brought is：
Backlight module and its assemble method provided in an embodiment of the present invention, display device, framework are located at including at least two
The positioning module of light guide plate and the display panel loading end of framework, when optical film material is arranged, due to the positioning in positioning module
One end of column protrudes from the display panel loading end of framework, even if the edge warping of optical film material or automation equipment are in group
Rotation keeps optical film material subject to centrifugal forces during dress, and optical film material can not all cross display panel loading end, i.e. light
Learning membrane material will not climb, and when attaching shading rubber belt, apply pressure to positioning column by pressure head, positioning column is pressed into and is held
Receive chamber, the positioning column being pressed into after accommodating chamber is non-bulging in display panel loading end, i.e. positioning column will not be to subsequent display panel
Installation etc. impact, while ensureing the reliability of backlight module, improve the reliability of display device.
Description of the drawings
Fig. 1 is a kind of part-structure schematic diagram of the backlight module provided in the related technology；
Fig. 2 is a kind of structural schematic diagram of the backlight module provided in the related technology；
Fig. 3 is a kind of flow chart of the assemble method of backlight module provided in an embodiment of the present invention；
Fig. 4 is the process flow for assembling figure of backlight module provided in an embodiment of the present invention；
Fig. 5 A are a kind of structural schematic diagrams of positioning module provided in an embodiment of the present invention；
Fig. 5 B are the structural schematic diagrams of another positioning module provided in an embodiment of the present invention；
Fig. 6 is a kind of structural schematic diagram of framework provided in an embodiment of the present invention；
Fig. 7 is a kind of structural schematic diagram of backlight module provided in an embodiment of the present invention.
Specific implementation mode
To make the object, technical solutions and advantages of the present invention clearer, below in conjunction with attached drawing to embodiment party of the present invention
Formula is described in further detail.
Backlight module can be divided into down straight aphototropism mode set and side entrance back module, and Fig. 2 is one kind in the related technology
The structural schematic diagram of side entrance back module, as shown in Fig. 2, the side entrance back module includes backboard 11, glue frame 12, light guide plate
13, reflection tape 14, reflector plate 15, optical film material 16 and shading rubber belt 17.It is general first in the assembling process of the backlight module
Semi-finished product assembling as shown in Figure 1 is completed, i.e., first completes backboard 11, glue frame 12, light guide plate 13, reflection tape 14 and reflector plate 15
Assembling；Then the semi-finished product are put into automation equipment to complete the assembling of optical film material 16 and the patch of shading rubber belt 17
It is attached, wherein optical film material 16 includes the diffusion sheet 161 set gradually along the direction far from light guide plate and brightening piece 162.Due to the back of the body
The requirement of the thickness of optical mode group, after the assembling that automation equipment completes optical film material 16, as shown in Fig. 2, the upper table of brightening piece
The vertical range very little between display panel loading end on face and glue frame 12, generally between 0.05~0.1 millimeter.Due to light
Learn membrane material warpage issues itself presence and automation equipment spinning movement in an assembling process make optical film material by from
The effect of mental and physical efforts may cause optical film material that climbing (the display panel loading end for crossing glue frame), optical film material climbing occurs
Afterwards, automation equipment can not fix optical film material when attaching shading rubber belt, may go out between optical film material and shading rubber belt
Existing gap, causes the edge of backlight module light leakage phenomena occur, to cause display device existing in the edges big visual angle Xia Shi light leakage
The generation of elephant, therefore the reliability of display device is relatively low；In addition, after optical film material climbing, when installing display panel, optical film
The position meeting recurring structure interference of material climbing, causes the corner areas of display panel to be jacked up, and influences the display effect of display panel
While fruit, the thickness of display device can also exceed specification, and recurring structure is interfered when complete machine being caused to assemble.
An embodiment of the present invention provides a kind of assemble methods of backlight module, as shown in figure 3, this method includes：
Step 301 provides a backboard.
Light guide plate and framework is arranged in step 302 on backboard, and framework is located at the side of light guide plate, and framework includes at least two
A positioning module between light guide plate and the display panel loading end of framework, each positioning module include the appearance being superposed
Receive chamber and positioning column, the one end of positioning column far from accommodating chamber protrudes from display panel loading end.
It should be noted that orthographic projection of the positioning rod structure in accommodating chamber is located in accommodating chamber region.
Step 303, the light emission side setting optical film material in light guide plate.
Step 304 applies pressure using the pressure head for being provided with shading rubber belt to positioning column, and positioning column is pressed into and is accommodated
Chamber, and shading rubber belt is attached on the fringe region and display panel loading end of optical film material.
Wherein, the positioning column being pressed into after accommodating chamber is non-bulging in display panel loading end.
In embodiments of the present invention, in above-mentioned steps 303 in the setting of optical film material and step 304 shading rubber belt patch
It is attached to be completed by automation equipment.
In conclusion the assemble method of backlight module provided in an embodiment of the present invention, framework is located at including at least two to be led
The positioning module of tabula rasa and the display panel loading end of framework, when optical film material is arranged, due to the positioning column in positioning module
One end protrude from the display panel loading end of framework, even if the edge warping of optical film material or automation equipment are assembling
Rotation keeps optical film material subject to centrifugal forces in the process, and optical film material can not all cross display panel loading end, i.e. optics
Membrane material will not climb, and when attaching shading rubber belt, apply pressure to positioning column by pressure head, positioning column is pressed into and is accommodated
Chamber, the positioning column being pressed into after accommodating chamber is non-bulging in display panel loading end, i.e. positioning column will not be to subsequent display panel
Installation etc. impacts, and while ensureing the reliability of backlight module, improves the reliability of display device.
Optionally, Fig. 4 is the process flow for assembling figure of backlight module provided in an embodiment of the present invention：
S1, backboard 401 is provided.
Optionally, backboard can be metal backing.
S2, setting light guide plate 402 and framework 403, framework 403 are located at the side of light guide plate 402, framework on backboard 401
403 include at least two positioning modules between light guide plate 402 and the display panel loading end M of framework 403, each to position
Module includes the accommodating chamber 403a being superposed and positioning column 403b, and the one end of positioning column 403b far from accommodating chamber 403a protrudes from
Display panel loading end M.
Optionally, framework can be glue frame, and the framework can be prepared by injection molding process.
S3, the light emission side setting optical film material 404 in light guide plate 402.
Optionally, optical film material 404 may include 4041 He of diffusion sheet being stacked along the direction far from light guide plate 402
Brightening piece 4042.Wherein, diffusion sheet can be used for homogenizing the light of light guide plate light-emitting surface outgoing, and brightening piece can be used for improving certain
The light luminance in a region.
S4, pressure is applied to positioning column 403b using the pressure head A for being provided with shading rubber belt 405, positioning column 403b is pressed
Enter accommodating chamber 403a.
S5, shading rubber belt 405 is attached on the fringe region and display panel loading end of optical film material 404.
In practical application, after setting up optical film material, first pressure head can be used to apply pressure to positioning column, will positioned
Column is pressed into accommodating chamber, then shading rubber belt is attached to the fringe region and display panel loading end of optical film material by attaching tool
On, the embodiment of the present invention is not construed as limiting this.
In embodiments of the present invention, positioning module can be structure as a whole, or package assembly.
When positioning module is structure as a whole, as shown in Figure 5A, accommodating chamber 403a is structure as a whole with positioning column 403b, adopts
Pressure is applied to positioning column with the pressure head for being provided with shading rubber belt, may include by the method that positioning column is pressed into accommodating chamber：
Pressure is applied to positioning column using pressure head so that accommodating chamber is broken with positioning column junction, and positioning column is pressed into
Accommodating chamber.
It should be noted that height of the depth of accommodating chamber not less than positioning column protrusion display panel loading end and junction
The sum of thickness so that after positioning column is pressed into accommodating chamber, the non-bulging display panel loading end of positioning column avoids influencing shading
The attaching of adhesive tape and the installation of follow-up display panel.
Optionally, the thickness range of junction is 0.15~0.2 millimeter；Positioning column protrudes the height of display panel loading end
Ranging from 0.2~0.3 millimeter；The depth bounds of accommodating chamber are 0.4~0.7 millimeter, and the depth and positioning column of optional accommodating chamber are convex
The difference range for going out the height of display panel loading end is 0.2~0.4 millimeter.
Wherein, as shown in Figure 5A, the difference of the bed-plate dimension L2 of the bed-plate dimension L1 and positioning column 403b of accommodating chamber 403a
Ranging from 0.2~0.4 millimeter, the bottom surface of accommodating chamber is the section in the directions AA ', and the bed-plate dimension of accommodating chamber is more than positioning column
Bed-plate dimension, after the junction fracture to ensure accommodating chamber and positioning column, positioning column can be pressed into accommodating chamber.
When positioning module is package assembly, as shown in Figure 5 B, accommodating chamber 403a is arranged towards the side of positioning column 403b
There is opening, positioning column 403b holdings are in opening；Pressure is applied to positioning column using the pressure head for being provided with shading rubber belt, will be determined
Position column indentation accommodating chamber method may include：
Pressure is applied to positioning column using pressure head, positioning column is pressed into accommodating chamber from opening.
It should be noted that height of the depth of accommodating chamber not less than positioning column protrusion display panel loading end, so that
After positioning column is pressed into accommodating chamber, the non-bulging display panel loading end of positioning column avoids the attaching for influencing shading rubber belt and follow-up
The installation of display panel.
In embodiments of the present invention, accommodating chamber is identical as the shape of positioning column, so that accommodating chamber and positioning column are preferably
Matching, optionally, accommodating chamber is circular cylindrical cavity, and positioning column is cylindrical structure；Alternatively, accommodating chamber is cube cylindrical chamber, it is fixed
Position column is cube rod structure.
Optionally, optical diaphragm includes positioning tab, and positioning module can be arranged in a one-to-one correspondence with positioning tab.
Optionally, as shown in fig. 6, when framework 403 is rectangular box, above-mentioned at least two positioning module may include four
Positioning module X, four positioning module X are separately positioned on four square positions of framework.
It should be noted that the sequencing of the assemble method step of backlight module provided in an embodiment of the present invention can be into
The appropriate adjustment of row, step according to circumstances can also accordingly be increased and decreased, and any one skilled in the art is in this hair
In the technical scope of bright exposure, the method that can readily occur in variation should be covered by the protection scope of the present invention, therefore not
It repeats again.
In conclusion the assemble method of backlight module provided in an embodiment of the present invention, framework is located at including at least two to be led
The positioning module of tabula rasa and the display panel loading end of framework, when optical film material is arranged, due to the positioning column in positioning module
One end protrude from the display panel loading end of framework, even if the edge warping of optical film material or automation equipment are assembling
Rotation keeps optical film material subject to centrifugal forces in the process, and optical film material can not all cross display panel loading end, i.e. optics
Membrane material will not climb, and when attaching shading rubber belt, apply pressure to positioning column by pressure head, positioning column is pressed into and is accommodated
Chamber, the positioning column being pressed into after accommodating chamber is non-bulging in display panel loading end, i.e. positioning column will not be to subsequent display panel
Installation etc. impacts, and while ensureing the reliability of backlight module, improves the reliability of display device.
Fig. 7 is a kind of structural schematic diagram of backlight module provided in an embodiment of the present invention, as shown in fig. 7, backlight module can
To include：
Backboard 401, framework 403, light guide plate 402, optical film material 404 and shading rubber belt 405, framework 403 and light guide plate 402
It is arranged on backboard 401, framework 403 is arranged in the side of light guide plate 402, and the light extraction in light guide plate 402 is arranged in optical film material 404
Side, shading rubber belt 405 are attached on the fringe region of optical film material 404 and the display panel loading end of framework 403.
Wherein, framework 403 includes at least two positioning modules, and each positioning module includes accommodating chamber and positioning column, each
Positioning module is by accommodating chamber and one end protrudes from the positioning column of display panel loading end and applies pressure so that fixed
The structure that position column indentation accommodating chamber is formed.
Optionally, as shown in fig. 7, optical film material 404 may include the expansion being stacked along the direction far from light guide plate 402
Discrete piece 4041 and brightening piece 4042.
Further, as shown in fig. 7, backlight module further includes reflector plate 406, which is arranged in light guide plate 402
Between backboard 401, reflector plate can be used for reflex in light guide plate from the light escaped in light guide plate, to improve backlight mould
The light utilization of group.
Optionally, backlight module provided in an embodiment of the present invention is side entrance back module, employed in the backlight module
Lamp bar can be light emitting diode (English：Light Emitting Diode；Referred to as：LED), or cold-cathode fluorescent
Lamp (English：Cold Cathode Fluorescent Lamp；Referred to as：CCFL), the embodiment of the present invention is not construed as limiting this.
In conclusion backlight module provided in an embodiment of the present invention, framework includes at least two positioned at light guide plate and framework
Display panel loading end positioning module, when optical film material is arranged, due to the positioning column in positioning module one end protrude
In the display panel loading end of framework, even if the edge warping of optical film material or automation equipment rotate in an assembling process
Keep optical film material subject to centrifugal forces, optical film material can not all cross display panel loading end, i.e. optical film material will not be sent out
Raw climbing applies pressure by pressure head when attaching shading rubber belt to positioning column, positioning column is pressed into accommodating chamber, indentation is held
Receive that the positioning column after chamber is non-bulging in display panel loading end, i.e. positioning column will not cause the installation etc. of subsequent display panel
It influences, while ensureing the reliability of backlight module, improves the reliability of display device.
An embodiment of the present invention provides a kind of display device, which may include：Backlight mould as shown in Figure 7
Group.
Optionally, display device provided in an embodiment of the present invention can be mobile phone, tablet computer, television set, display, pen
Remember any product or component with display function such as this computer, Digital Frame, navigator.
In conclusion display device provided in an embodiment of the present invention, including backlight module in framework include at least two
A positioning module positioned at light guide plate and the display panel loading end of framework, when optical film material is arranged, due in positioning module
One end of positioning column protrude from the display panel loading end of framework, even if the edge warping of optical film material, or automation are set
Standby rotation in an assembling process keeps optical film material subject to centrifugal forces, and optical film material can not all cross display panel carrying
Face, i.e. optical film material will not climb, and when attaching shading rubber belt, apply pressure to positioning column by pressure head, will position
Column is pressed into accommodating chamber, and the positioning column being pressed into after accommodating chamber is non-bulging in display panel loading end, i.e. positioning column will not be to subsequent
The installation etc. of display panel impacts, and while ensureing the reliability of backlight module, improves the reliability of display device.
The foregoing is merely the present invention alternative embodiment, be not intended to limit the invention, it is all the present invention spirit and
Within principle, any modification, equivalent replacement, improvement and so on should all be included in the protection scope of the present invention.
Claims (10)
1. a kind of assemble method of backlight module, which is characterized in that the method includes：
One backboard is provided；
Light guide plate and framework are set on the backboard, and the framework is located at the side of the light guide plate, and the framework includes extremely
Few two positioning modules between the light guide plate and the display panel loading end of the framework, each positioning module
Including the accommodating chamber being superposed and positioning column, the one end of the positioning column far from the accommodating chamber protrudes from the display panel
Loading end；
In the light emission side of the light guide plate, optical film material is set；
Pressure is applied to the positioning column using the pressure head for being provided with shading rubber belt, the positioning column is pressed into the receiving
Chamber, and the shading rubber belt is attached on the fringe region and the display panel loading end of the optical film material；
Wherein, it is non-bulging in the display panel loading end to be pressed into the positioning column after the accommodating chamber.
2. according to the method described in claim 1, it is characterized in that, the accommodating chamber is structure as a whole with the positioning column,
It is described that pressure is applied to the positioning column using the pressure head for being provided with shading rubber belt, the positioning column is pressed into the appearance
Receive chamber, including：
Pressure is applied to the positioning column using the pressure head so that the accommodating chamber is broken with the positioning column junction, with
The positioning column is pressed into the accommodating chamber.
3. according to the method described in claim 2, it is characterized in that,
The thickness range of the junction is 0.15~0.2 millimeter；
The altitude range that the positioning column protrudes the display panel loading end is 0.2~0.3 millimeter；
The depth bounds of the accommodating chamber are 0.4~0.7 millimeter.
4. according to the method described in claim 2, it is characterized in that,
The difference range of the bed-plate dimension of the accommodating chamber and the bed-plate dimension of the positioning column is 0.2~0.4 millimeter.
5. according to the method described in claim 1, it is characterized in that, the side of the accommodating chamber towards the positioning column is provided with
Opening, the positioning column holding is in the opening；
It is described that pressure is applied to the positioning column using the pressure head for being provided with shading rubber belt, the positioning column is pressed into the appearance
Receive chamber, including：
Pressure is applied to the positioning column using the pressure head, the positioning column is pressed into the accommodating chamber from the opening.
6. according to the method described in claim 1, it is characterized in that,
The accommodating chamber is circular cylindrical cavity, and the positioning column is cylindrical structure；
Alternatively, the accommodating chamber is cube cylindrical chamber, the positioning column is cube rod structure.
7. according to the method described in claim 1, it is characterized in that, the optical diaphragm includes positioning tab,
The positioning module is arranged in a one-to-one correspondence with the positioning tab.
8. according to the method described in claim 1, it is characterized in that, the framework is rectangular box, described at least two position
Module includes four positioning modules,
Four positioning modules are separately positioned on four square positions of the framework.
9. a kind of backlight module, which is characterized in that the backlight module includes：
Backboard, framework, light guide plate, optical film material and shading rubber belt, the framework and the light guide plate are arranged on the backboard,
The framework is arranged in the side of the light guide plate, and the light emission side in the light guide plate, the shading is arranged in the optical film material
Adhesive tape is attached on the fringe region of the optical film material and the display panel loading end of the framework；
Wherein, the framework includes at least two positioning mould between the light guide plate and the display panel loading end
Group, each positioning module include accommodating chamber and positioning column, and each positioning module is by being located at the accommodating chamber
The positioning column that upper and one end protrudes from the display panel loading end applies pressure so that the positioning column is pressed into the appearance
The structure that chamber of receiving is formed.
10. a kind of display device, which is characterized in that the display device includes：Backlight module described in claim 9.
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| CN201810012514.7A CN108563064B (en) | 2018-01-05 | 2018-01-05 | Backlight module, assembling method thereof and display device |
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| CN201810012514.7A CN108563064B (en) | 2018-01-05 | 2018-01-05 | Backlight module, assembling method thereof and display device |
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| Publication number | Publication date |
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| CN108563064B (en) | 2021-04-13 |
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