CN110082962A - A kind of side entrance back module that structure is lightening - Google Patents
A kind of side entrance back module that structure is lightening Download PDFInfo
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- CN110082962A CN110082962A CN201910464547.XA CN201910464547A CN110082962A CN 110082962 A CN110082962 A CN 110082962A CN 201910464547 A CN201910464547 A CN 201910464547A CN 110082962 A CN110082962 A CN 110082962A
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- China
- Prior art keywords
- lower casing
- guide plate
- light guide
- lampshade
- lightening
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- 230000007704 transition Effects 0.000 claims abstract description 4
- 239000002390 adhesive tape Substances 0.000 claims description 19
- 238000009434 installation Methods 0.000 claims description 9
- 238000005452 bending Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 13
- 239000004973 liquid crystal related substance Substances 0.000 description 10
- 239000003292 glue Substances 0.000 description 6
- 238000005282 brightening Methods 0.000 description 5
- 230000017525 heat dissipation Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000003287 optical effect Effects 0.000 description 3
- 239000004568 cement Substances 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 2
- 238000000576 coating method Methods 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 239000011148 porous material Substances 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 235000010210 aluminium Nutrition 0.000 description 1
- 201000009310 astigmatism Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000003760 hair shine Effects 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 230000000116 mitigating effect Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 230000017260 vegetative to reproductive phase transition of meristem Effects 0.000 description 1
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
- G02B6/0033—Means for improving the coupling-out of light from the light guide
- G02B6/0035—Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it
- G02B6/0036—2-D arrangement of prisms, protrusions, indentations or roughened surfaces
-
- 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
- G02B6/0033—Means for improving the coupling-out of light from the light guide
- G02B6/0035—Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it
- G02B6/0045—Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it by shaping at least a portion of the light guide
- G02B6/0046—Tapered light guide, e.g. wedge-shaped light guide
-
- 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
- G02B6/0033—Means for improving the coupling-out of light from the light guide
- G02B6/0058—Means for improving the coupling-out of light from the light guide varying in density, size, shape or depth along 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
- G02F1/133615—Edge-illuminating devices, i.e. illuminating from the side
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)
- Non-Portable Lighting Devices Or Systems Thereof (AREA)
Abstract
The invention discloses a kind of side entrance back modules that structure is lightening, including lower casing (1), lampshade (2), lamp bar (3), light guide plate (4) and diaphragm structure (5), the lamp bar (3) is mounted in lampshade (2), the lampshade (2) is fixed on lower casing (1), and the light guide plate (4) and diaphragm structure (5) are each attached in lower casing (1)；The lower casing (1) is plastic parts, and the lower casing (1) bottom is engraved structure, and the lampshade (2) is metalwork；The light guide plate (4) is wedge structure, and the lamp bar (3) enters light from the thicker side of thickness on light guide plate (4)；Lattice point structure is distributed on the light guide plate (4), and the site on light guide plate from thicker side to relatively thin side by dilute to close gradually transition.The present invention is used to mitigate the weight of backlight module, and the volume of backlight module is thinned.
Description
Technical field
The present invention relates to back light source technique fields, and in particular to a kind of side entrance back module that structure is lightening.
Background technique
Backlight be it is a kind of provide the structure of light source, such as the backlight module of display from the back side for display device, now
Display in the market is in the majority with liquid crystal display, and liquid crystal display cannot shine, and needs the backlight provided by backlight module
Display function is realized in source；And liquid crystal display panel is than relatively thin, more crisp, it is also necessary to could be pacified by backlight module as structural member
Dress uses, thus backlight module is the light source of liquid crystal display, and the structural member as liquid crystal display, for liquid crystal display
It is particularly significant for device.
Backlight module needs to support self structure and liquid crystal display panel, thus needs to consider the stability of structure；Backlight module
Need to provide area source for liquid crystal display panel, the luminous optical effect that uniformly just can guarantee liquid crystal display of backlight module, thus
The luminous uniformity of backlight module is also the important performance of backlight module；Present backlight module is mostly using LED light bar as back
Light source, LED can only convert a part of electric energy to luminous energy, and most of electric energy is discharged in the form of thermal energy, and the temperature of use environment
Degree height directly affects service life and the performance of LED, thus heat dissipation performance is also that backlight module needs to consider important parameter index；Separately
Outside, display it is lightening be display development trend.Present backlight module is difficult while simultaneous while realizing lightening
Care for structural stability, uniformity of luminance and heat dissipation performance.
Summary of the invention
Present invention solves the technical problem that being that it is frivolous to provide a kind of soluble structure for the deficiency in background technique
The side entrance back module of change.
In order to solve the above technical problems, the technical scheme is that a kind of side entrance back module that structure is lightening,
Including lower casing, lampshade, lamp bar, light guide plate and diaphragm structure, the lamp bar is mounted in lampshade, and the lampshade is fixed on lower casing
On, the light guide plate and diaphragm structure are each attached in lower casing；The lower casing is plastic parts, and the lower casing bottom is hollow out knot
Structure, the lampshade are metalwork；The light guide plate is wedge structure, and the thicker side of lamp bar thickness from light guide plate enters
Light；Lattice point structure is distributed on the light guide plate, and the site on light guide plate from thicker side to relatively thin side by it is dilute to it is close by
Gradual transition.
Further, the lampshade is U-shaped structure, is adhesively fixed on the downside of lower casing on the upside of the lampshade, institute
It states lampshade and also passes through screw and be screwed on lower casing.
Further, the face of the lower casing bonding lampshade is multi-stage stairs structure, and high close to the step of light guide plate side
Spend lower, the lampshade forms gap between the two after connecting with lower casing, the light guide plate and/or diaphragm structure are inserted into
In gap between lampshade and lower casing.
Further, ground strip is connected on the lampshade, the ground strip is connected to the back side of lower casing.
Further, it is additionally provided with groove on the lower casing medial surface, is provided on the light guide plate and diaphragm structure convex
The convex block of block, the light guide plate and diaphragm structure is caught in groove and lower casing is installed.
Further, the groove side is step structure, and steps at different levels are respectively used to installation light guide plate and diaphragm structure
On convex block.
Further, adhesive tape is bonded on the convex block, light guide plate and diaphragm structure are adhesively fixed on down by the adhesive tape
On shell, upper surface is equal with the step upper surface at the highest level of step structure after the adhesive tape bonding.
Further, it is provided with location hole on the convex block, positioning column, the positioning column insertion are provided on the lower casing
The positioning hole being arranged on to convex block.
Further, the lamp bar includes connecting line, and the connecting line is FPC；The connecting line is connected to lamp bar front,
And lamp bar front is reached after attaching to the bending of the lamp bar back side again.
Further, the lamp bar includes connecting line, and the connecting line is conducting wire.
The beneficial effect that the present invention realizes mainly has the following: using the lampshade of metal material, that is, can guarantee backlight mould
The heat dissipation performance of group；The efficiency that the luminous utilization rate of lamp bar can also be increased, improve backlight module；Lamp bar can also be protected,
Lamp bar is unlikely to deform when backlight module is deformed by external force, and the route and lamp for avoiding lamp bar are damaged；And the lamp of metal material
The lower casing of cover and plastic cement material is installed together the intensity that can also reinforce backlight module, and both metal shade and lower casing combine,
It is easy for producing line assembling in this way.Using the plastic cement lower casing of hollow out, back can be mitigated while guaranteeing back light module unit structure intensity
The weight of optical mode group.Using the light guide plate of wedge structure, the lamp bigger using shape, brightness is brighter can be matched, is carried on the back improving
The lightening of backlight module, the use of reduction raw material, the Material Cost for reducing product are realized while optical mode group brightness；Together
When light guide plate on lay lattice point structure, guarantee the luminous uniformity of backlight module.In short, guaranteeing backlight module properties
In the case of, realize the lightening of backlight module.
Detailed description of the invention
Fig. 1 is the configuration schematic diagram for the side entrance back module that structure is lightening in the embodiment of the present invention one；
Fig. 2 is the structural schematic diagram of the lower casing for the side entrance back module that structure is lightening in the embodiment of the present invention one；
Fig. 3 is the enlarged structure schematic diagram in the portion A in Fig. 2；
Fig. 4 is the enlarged structure schematic diagram in the portion B in Fig. 2；
Fig. 5 is the structural schematic diagram of the ground strip for the side entrance back module that structure is lightening in the embodiment of the present invention one；
Fig. 6 is the structural schematic diagram of the reflector for the side entrance back module that structure is lightening in the embodiment of the present invention one；
Fig. 7 is the structural schematic diagram of the light guide plate for the side entrance back module that structure is lightening in the embodiment of the present invention one；
Fig. 8 is the structural schematic diagram of the scattering sheet for the side entrance back module that structure is lightening in the embodiment of the present invention one；
Fig. 9 is the structural schematic diagram of the brightening piece for the side entrance back module that structure is lightening in the embodiment of the present invention one；
Figure 10 is the structural schematic diagram of the lamp bar for the side entrance back module that structure is lightening in the embodiment of the present invention one；
Figure 11 is the enlarged structure schematic diagram in the portion C in Figure 10；
Figure 12 be the lower casing, lampshade of the lightening side entrance back module of structure in the embodiment of the present invention one, lamp bar, light guide plate,
The schematic diagram of the longitudinal profile structure of diaphragm installation；
Figure 13 is the structural schematic diagram of the adhesive tape for the side entrance back module that structure is lightening in the embodiment of the present invention one.
The attached figures are only used for illustrative purposes and cannot be understood as limitating the patent；In order to better illustrate this embodiment, attached
Scheme certain components to have omission, zoom in or out, does not represent the size of actual product；To those skilled in the art,
The omitting of some known structures and their instructions in the attached drawings are understandable；The same or similar label corresponds to same or similar
Component；The terms describing the positional relationship in the drawings are only for illustration, should not be understood as the limitation to this patent.
Specific embodiment
In order to facilitate the understanding of those skilled in the art, being carried out below in conjunction with attached drawing and embodiment to the present invention further
Detailed description.
Embodiment one
Refering to fig. 1 ~ 13, a kind of side entrance back module that structure is lightening, including lower casing 1, lampshade 2, lamp bar 3,4 and of light guide plate
Diaphragm structure 5.Mounting structure of the lower casing 1 as 5 entirety of lampshade 2, light guide plate 4 and diaphragm structure, also as terminal display
The mounting structure of liquid crystal display panel；The lower casing 1 preferably with lightweight plastic parts, and 1 bottom of the lower casing be arranged engraved structure,
Such as multiple hollow outs 13 are set in setting Fig. 2, so that the weight of backlight module can be mitigated while guaranteeing structural strength.Institute
It states lamp bar 3 to be adhesively fixed in lampshade 2 by bond plies, lamp bar 3 is radiated by lampshade 2 when work；And lampshade 2 can
So that the light that lamp bar 3 issues is pointed into light guide plate to greatest extent, thus the efficiency for improving the utilization rate of light, enhancing mould group；
Metalwork of the lampshade 2 preferably with good heat dispersion performances such as aluminiums.The lampshade 2 is fixed on lower casing 1, can be using viscous
It the modes such as connects, be spirally connected to fix.
Refering to fig. 1 ~ 11, the light guide plate 4 and diaphragm structure 5 are each attached in lower casing 1, are formed together an astigmatism knot
The point light source that lamp bar issues is converted to area source, forms the uniform backlight module that shines by structure.The light guide plate 4 is wedge
Shape structure, the lamp bar 3 enter light from the thicker side of thickness on light guide plate 4, so as to which larger using shape, brightness is higher
Light source (such as LED light of 3.0mm*1.4mm) and the light guide plate cooperate, and while improving the brightness of mould group light guide plate are integrally tied
Structure is thinned, to realize the mitigation of backlight module and be thinned, realizes the lightening of backlight module.In order to improve backlight module
Lattice point structure is distributed on the light guide plate 4 in luminous uniformity, and the site on light guide plate is from thicker side to relatively thin side
Make itself and close lamp bar side to close gradually transition by dilute so as to improve the brightness on backlight module far from lamp bar side
Brightness it is consistent so that backlight module Integral luminous is more uniform；In addition, the size of site can also be with optimal setting, such as net
Point is become larger from thicker side to relatively thin side by small, can also be increased the brightness on backlight module far from lamp bar side, be mentioned
The luminous uniformity of high backlight module.Upper ledge can be set to fix diaphragm structure in backlight module, can also be not provided with upper ledge, this
Using the form for being not provided with upper ledge in embodiment, but diaphragm structure 5 is fixed on lower casing 1 by other fixed forms such as bondings
On, to further be thinned and mitigate backlight module.
Refering to Fig. 6 and Figure 12, lampshade 2 can be set to that section is L-shaped structure or section is the structure of U-shaped, preferably set
It is set to the structure that section is U-shaped, for the opening of U-shaped structure towards light guide plate, this structure can be from upper and lower, rear three sides of lamp bar
The reflective light for issuing lamp bar is reflected towards light guide plate, and the utilization rate to shine to lamp bar is higher；In addition it is preferably coated on the inside of lampshade 2
The preferable coating of reflective function or the bonding preferable diaphragm of reflective function, further increase lampshade reflection efficiency, to improve lamp
The service efficiency of item sending light.The present embodiment is illustrated so that the lampshade 2 of U-shaped structure is in section as an example, and lamp bar 3 passes through thermally conductive double
Face glue sticking is in the bottom of U-shaped structure；Lampshade 2 and the mounting means of lower casing 1 are as follows: lower casing 1 is opened up in the position of installation lampshade 2
The groove 14(groove of strip is opened up in 1 outside bottom surface of lower casing, is not got through in 1 upper side position of lower casing, close to light guide plate side
Get through so that lamp bar shine can be with directive light guide plate), the upside of the lampshade 2 is adhesively fixed on lower casing 1 by double-sided adhesive tape 9
On downside (i.e. the top surface of groove)；The lampshade 2 is also screwed on lower casing 1 by screw, can be opened in the downside of lampshade 2
If lampshade 2 is spirally connected from the back side of lower casing 1 by screw and is fixed on lower casing 1 by screw hole 21；Using the side of bonding and threaded
Formula fixes lampshade more reliable and more stable.
Refering to fig. 12, preferably, the face (i.e. the top surface of groove) that the lower casing 1 is bonded lampshade 2 is multistage
Step structure, and the step height close to 4 side of light guide plate is lower, the lampshade 2 forms empty between the two after connecting with lower casing 1
Gap, the light guide plate 4 and/or diaphragm structure 5 are inserted into the gap between lampshade 2 and lower casing 1 and are fixedly mounted；Such as Figure 12
In show the mode that two-stage step is set on lower casing 1, level-one step is used to cooperate with lampshade 2, another grade of step be used for
Light guide plate and diaphragm structure cooperation, can be clamping in the gap that lampshade and lower casing are formed by light guide plate and diaphragm structure, thus
Better lightguide plate fixing and diaphragm structure, make up and are not provided with upper ledge to fix the deficiency of diaphragm structure；Meanwhile it can will glue
The wider of the setting of adhesive tape 9 of lampshade 2 is connect, allows to be adhered to two-stage step, so that light guide plate and diaphragm structure can be into one
Step is be bonded by adhesive tape 9 with lower casing, further enhances light guide plate and the diaphragm structure reliability Nian Jie with lower casing, and only use
One adhesive tape is pasted convenient and efficient；Such as light guide plate and scattering sheet can be mounted in above-mentioned gap, by scattering sheet and lower casing 1
It is adhesively fixed by adhesive tape 9.In addition, step structure may be set to be the multistage of two-stage or more, such as setting three-level, come respectively
Fastening lampshades, light guide plate and diaphragm structure.
Refering to Fig. 6, the LED light bar that lamp bar generally uses LED light and PCB to make, LED light to electrostatic sensitive, be easy by
The damage of electrostatic, thus ground strip 6 is connected on the lampshade 2, ground strip is generally a sheet metal.It can be in ground strip
Screw hole 61 is set on 6, ground strip 6 and lampshade 2 are spirally connected together by same screw and are fixed on lower casing 2, ground strip 6 is fixed on
On ground strip installation position 15；The ground strip 6 is connected to the back side of lower casing 1, when assembling makes display terminal, can will be grounded
Piece 6 is connect with the ground wire of display terminal, and when work can timely discharge the electrostatic on lampshade 2, is avoided in electrostatic damage lamp bar 3
Lamp.In addition ground strip 6 can also be arranged in other positions of the lower casing in addition to lampshade, to protect each knot installed on lower casing
Structure.
Refering to Fig. 3,4,7 ~ 9, groove 11, the light guide plate 4 and diaphragm structure 5 are additionally provided on 1 medial surface of lower casing
On be provided with convex block 7, the convex block 7 of the light guide plate 4 and diaphragm structure 5 is caught in groove 11 and lower casing 1 is installed, so as into
One step guarantees the stability that light guide plate 4 and diaphragm structure 5 are installed；Simultaneously on groove can bonded adhesives item 8, in light guide plate 4 and film
Light guide plate 4 and diaphragm structure 5 are fixed on lower casing 1 by 7 top of convex block of chip architecture 5, further strengthen light guide plate 4 and diaphragm knot
The installation of structure 5 and lower casing 1.
Refering to Fig. 3 and Fig. 4, preferably, it is preferably provided as step structure, Ge Jitai for 11 side of groove
Rank is respectively used to the convex block 7 on installation light guide plate 4 and diaphragm structure 5, can be by light guide plate 4 and diaphragm after step structure is arranged
Convex block 7 in structure 5 is set as different sizes, the step for the smaller and lower layer that the convex block 7 on lower layer's light guide plate 4 is arranged
Match, the step on the larger and upper layer that the convex block 7 on upper layer diaphragm structure 5 is arranged is matched, so as to avoid light guide plate and film
Chip architecture is with the wrong location when installing.When can ignore the adhesive tape 8 that thickness is disregarded using thinner thickness, groove 11 can be by such as lower section
Formula setting: top layer's convex block 7 is caught in the step upper surface at the highest level of upper surface and 11 side step structure of groove after groove 11
It is equal；Adhesive tape 8 is bonded on top layer's convex block 7,8 both sides of adhesive tape are adhered to the highest level of 11 side step structure of groove
On ledge surface；When needing to use has certain thickness adhesive tape 8, groove is preferably used such as flowering structure: as level Four is arranged in Fig. 3
Convex block on step structure, lowest level step 11a and light guide plate cooperates, and second layer step 11b matches with the convex block on diaphragm structure
Close, the step of third layer 11c is bonded adhesive tape 8, adhesive tape 8 be bonded after with the uppermost steps 11d(step as being installed on lower casing 1
The step of display terminal) it is equal, display terminal can be preferably installed.Adhesive tape 8 can front setting glue surface below, can also be with
Glue surface is arranged in both sides below, and the structure that glue surface is not provided among a kind of both sides setting glue surface is shown in Figure 13.In addition, may be used also
With as shown in Figure 4, jack 16 is set in 1 medial surface of lower casing, the convex block 7 of light guide plate is inserted into jack 16 leaded light is fixedly mounted
Plate, this structure lightguide plate fixing are more reliable and more stable than the structure of groove and convex block cooperation lightguide plate fixing.
Refering to fig. 1,3,4,7 ~ 9, diaphragm structure 5 includes reflector plate 51, scattering sheet 52, lower brightening piece 53 and upper brightening piece
54, reflector plate 51 can be bonded in 1 inside bottom surface of lower casing, light guide plate 4, scattering sheet 52, lower brightening piece 53 and upper brightening piece 54
It successively folds and is located on reflector plate 51.It is provided with location hole 71 on convex block 7 on diaphragm, is provided with positioning column 12 on the lower casing 1,
It is highly equal with top layer's diaphragm in the location hole 71 being arranged on the convex block 7 that the positioning column 12 is inserted on diaphragm.Location hole
71 can be set to may be set to be such as the gap structure in Fig. 9, preferably pore structure and notch such as the pore structure in Fig. 8
Structure matching uses, i.e., existing certain freedom degree, also guarantees the stabilization of diaphragm installation when guarantee diaphragm is installed.Scattering sheet 52 weeks
It encloses and can according to need one circle dirty oil layer 521 of coating to solve the problems, such as that backlight module surrounding is bright.
Refering to fig. 10 and 11, the lamp bar 3 includes connecting line 31, and the connecting line 31 is being connected to 3 pcb board of lamp bar just
Face, the connecting line 31 can use FPC or conducting wire, when using FPC, after connecting line 31 is first welded on the front of lamp bar 3, then to
The bending of the lamp bar back side is attached to behind the lamp bar back side reaches 3 front of lamp bar again, and this structure can be to avoid connecting line 31 by external force
It breaks.
Obviously, the above embodiment of the present invention be only to clearly illustrate example of the present invention, and not be pair
The restriction of embodiments of the present invention.For those of ordinary skill in the art, may be used also on the basis of the above description
To make other variations or changes in different ways.There is no necessity and possibility to exhaust all the enbodiments.It is all this
Made any modifications, equivalent replacements, and improvements etc., should be included in the claims in the present invention within the spirit and principle of invention
Protection scope within.
Claims (10)
1. a kind of side entrance back module that structure is lightening, it is characterised in that: including lower casing (1), lampshade (2), lamp bar (3),
Light guide plate (4) and diaphragm structure (5), the lamp bar (3) are mounted in lampshade (2), and the lampshade (2) is fixed on lower casing (1),
The light guide plate (4) and diaphragm structure (5) are each attached in lower casing (1)；The lower casing (1) is plastic parts, and the lower casing (1)
Bottom is engraved structure, and the lampshade (2) is metalwork；The light guide plate (4) is wedge structure, and the lamp bar (3) is from leaded light
The thicker side of thickness enters light on plate (4)；Lattice point structure is distributed on the light guide plate (4), and the site on light guide plate from compared with
Thick side is to relatively thin side by dilute to close gradually transition.
2. the lightening side entrance back module of structure according to claim 1, it is characterised in that: the lampshade (2) is U
Shape structure is adhesively fixed on the downside of lower casing (1) on the upside of the lampshade (2), and the lampshade (2) is also spirally connected by screw
On lower casing (1).
3. the lightening side entrance back module of structure according to claim 2, it is characterised in that: the lower casing (1) is viscous
The face for connecing lampshade (2) is multi-stage stairs structure, and the step height close to light guide plate (4) side is lower, and the lampshade (2) is under
Form gap between the two after shell (1) connection, the light guide plate (4) and/or diaphragm structure (5) be inserted into lampshade (2) with
In gap between lower casing (1).
4. the lightening side entrance back module of structure according to claim 2, it is characterised in that: on the lampshade (2)
It is connected with ground strip (6), the ground strip (6) is connected to the back side of lower casing (1).
5. the lightening side entrance back module of described in any item structures according to claim 1 ~ 4, it is characterised in that: under described
It is additionally provided with groove (11) on shell (1) medial surface, is provided with convex block (7), institute on the light guide plate (4) and diaphragm structure (5)
The convex block (7) for stating light guide plate (4) and diaphragm structure (5) is caught in groove (11) and lower casing (1) installation.
6. the lightening side entrance back module of structure according to claim 5, it is characterised in that: groove (11) side
Face is step structure, and steps at different levels are respectively used to the convex block (7) on installation light guide plate (4) and diaphragm structure (5).
7. the lightening side entrance back module of structure according to claim 6, it is characterised in that: on the convex block (7)
It is bonded with adhesive tape (8), light guide plate (4) and diaphragm structure (5) are adhesively fixed on lower casing (1) by the adhesive tape (8), the adhesive tape
(8) upper surface is equal with the step upper surface at the highest level of step structure after being bonded.
8. the lightening side entrance back module of structure according to claim 7, it is characterised in that: on the convex block (7)
It is provided with location hole (71), is provided with positioning column (12) on the lower casing (1), the positioning column (12) is inserted on convex block (7)
In the location hole (71) of setting.
9. the lightening side entrance back module of described in any item structures according to claim 1 ~ 4, it is characterised in that: the lamp
Item (3) includes connecting line (31), and the connecting line (31) is FPC；The connecting line (31) be connected to lamp bar (3) front, and to
The bending of the lamp bar back side reaches lamp bar (3) front again after attaching.
10. the lightening side entrance back module of described in any item structures according to claim 1 ~ 4, it is characterised in that: described
Lamp bar (3) includes connecting line (31), and the connecting line (31) is conducting wire.
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| CN201910464547.XA CN110082962A (en) | 2019-05-30 | 2019-05-30 | A kind of side entrance back module that structure is lightening |
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| CN201910464547.XA CN110082962A (en) | 2019-05-30 | 2019-05-30 | A kind of side entrance back module that structure is lightening |
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