CN108279533A - A kind of backlight module and display device - Google Patents
A kind of backlight module and display device Download PDFInfo
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- CN108279533A CN108279533A CN201810150898.9A CN201810150898A CN108279533A CN 108279533 A CN108279533 A CN 108279533A CN 201810150898 A CN201810150898 A CN 201810150898A CN 108279533 A CN108279533 A CN 108279533A
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- lug
- lamp bar
- side wall
- main part
- rubber belt
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- 238000009792 diffusion process Methods 0.000 claims abstract description 53
- 230000004888 barrier function Effects 0.000 claims abstract description 52
- 239000003292 glue Substances 0.000 claims description 58
- 239000004973 liquid crystal related substance Substances 0.000 claims description 12
- 239000002390 adhesive tape Substances 0.000 claims description 3
- 230000013011 mating Effects 0.000 claims 1
- 238000005516 engineering process Methods 0.000 abstract description 6
- 238000002360 preparation method Methods 0.000 abstract description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 30
- 229910052742 iron Inorganic materials 0.000 description 15
- 239000012528 membrane Substances 0.000 description 13
- 239000000758 substrate Substances 0.000 description 10
- 239000000463 material Substances 0.000 description 8
- 238000010586 diagram Methods 0.000 description 7
- 238000005452 bending Methods 0.000 description 4
- 239000000178 monomer Substances 0.000 description 4
- 230000003287 optical effect Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- 238000005286 illumination Methods 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 239000004831 Hot glue Substances 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000005142 aphototropism Effects 0.000 description 1
- 239000004568 cement Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 125000004122 cyclic group Chemical group 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
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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
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- 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 embodiment of the present invention provides a kind of backlight module and display device, is related to display technology field, can reduce shown caused by prism anamorphic it is bad.The backlight module includes frame, light guide plate, diffusion barrier, the second prism film, the first prism film, lamp bar, shading rubber belt；First prism film includes the first main part and first lug；Second prism film includes the second main part and the second lug；Diffusion barrier and the first, second lug are non-overlapping；Close to the side of lamp bar, first lug is located on the second lug；Frame includes four side walls；Except lamp bar side, prism tip that the top of excess-three side wall is below in the first main part, difference in height are less than the thickness of shading rubber belt；Shading rubber belt is not contacted with the first main part；Shading rubber belt is at least pasted onto in the side wall close to lamp bar side, lamp bar and first lug and the absolute value of the thickness difference of shading rubber belt and diffusion barrier is less than the thickness of shading rubber belt.Preparation for backlight module and display device.
Description
Technical field
The present invention relates to display technology field more particularly to a kind of backlight module and display devices.
Background technology
Liquid crystal display device (LCD) generally includes display panel (Panel) and backlight module.Back Word on the outside of backlight module
Prism film and lower prism film are followed successively by below the shading rubber belt of shape black, upper prism film and the down polaroid in display panel are logical
Shading rubber belt is crossed mutually to be bonded.
To ensure that the stickiness of shading rubber belt, shading rubber belt usually have certain thickness so that upper prism film and down polaroid
Between there is larger gap, be bonded with display panel after it the protective film of optical diaphragm in backlight module will be protected to remove
When, the down polaroid (POL) of upper prism film and display panel will produce Electrostatic Absorption.Since gap between the two (Gap) is larger,
Cause prism film shape convex.Open region among shading rubber belt is usually rectangle, and the convex deformation of prism, which can also be formed, is in
Rectangle with rounded corners is influenced also to will appear the shapes such as circle, ellipse by adsorption area, influences display effect.
Also, larger gap also results in display device and goes out between upper prism film and lower prism film after corresponding test
It now irregularly arches upward, leads to deform prism spacing (Pitch) at interface edge and mutate so that emergent light angle becomes
Change, generate interference, occurs the display uneven phenomenon of annular in the viewing area to make display device, and with rainbow texture, i.e.,
Generate Newton's ring (or being " Newton's ring ") phenomenon.
Invention content
In consideration of it, to solve problem of the prior art, a kind of backlight module of the embodiment of the present invention offer and display device,
It is bad that the display that display device occurs caused by prism anamorphic in backlight module can be reduced.
In order to achieve the above objectives, the embodiment of the present invention adopts the following technical scheme that：
First aspect, the embodiment of the present invention provide a kind of backlight module, including：Frame, light guide plate are sequentially located at described lead
Diffusion barrier, the second prism film and the first prism film on tabula rasa, positioned at the incidence surface side of the light guide plate lamp bar and be located at
Shading rubber belt on the frame；Wherein, first prism film includes：First main part and the first lug extended；
The first lug is located at least in first main part close to the side of the lamp bar；Second prism film includes：The
Two main parts and the second lug extended；Second lug is located at least in second main part close to the lamp bar
Side；The diffusion barrier and the first lug, second lug are non-overlapping；Close to the side of the lamp bar, institute
First lug is stated to be located on second lug；The frame includes：Four side walls；Except the institute close to the side of the lamp bar
It states except side wall, the top prism tip being below in first main part of the excess-three side wall and is less than
Difference in height is less than the thickness of the shading rubber belt；The shading rubber belt is not contacted with first main part；The shading glue
Band is at least pasted onto in the side wall close to the side of the lamp bar, the lamp bar and the first lug and the shading
Adhesive tape is less than the thickness of the shading rubber belt with the absolute value of the thickness difference of the diffusion barrier.
Optionally, the backlight module further includes：Light-emitting surface edge for the lamp bar to be pasted onto to the light guide plate
On lamp bar glue；The lamp bar glue extension not covered by the lamp bar is extended on the lamp bar glue；Close to the lamp bar
Side, the length of the second lug extending direction is more than the length of the first lug extending direction and described second convex
It is not pasted onto on the lamp bar glue extension by the subregion that the first lug covers on ear extending direction.
Optionally, the backlight module further includes：Be set on the diffusion barrier and positioned at first main part,
Light shielding block between second main part and the lamp bar；The frame includes：Outline border and positioned at the outline border with it is described
Glue frame between light guide plate；The outline border includes：Four the first sub- side walls；The glue frame includes：At least opposite two second
Sub- side wall；At least include in the side of the close lamp bar and close to the side wall of the lamp bar offside：First son
Side wall and the second sub- side wall；Upper surface of the light shielding block far from the diffusion barrier and the institute close to the side of the lamp bar
The top for stating the described second sub- side wall in side wall flushes；Alternatively, the frame is glue frame；The light shielding block is far from the diffusion
The upper surface of film is flushed with the top of the side wall close to the side of the lamp bar.
Optionally, the first lug is also located at first main part in its excess-three side wall at least
The side of one side wall, and/or, second lug is also located at second main part close to its excess-three side
The side of at least one of wall side wall；The top of at least one of its excess-three side wall side wall is provided with
Groove, the groove is for accommodating the close first lug and/or second lug；The shading rubber belt is also pasted onto
It is provided with the top of the side wall of the groove and the first lug in the groove and second lug two
On at least one of person；Wherein, in addition to close to the side of the lamp bar, for the first lug and second lug
The case where being respectively positioned on the same side of the light guide plate, the first lug are staggered with second lug, alternatively, described
One lug is located on second lug and the length of the second lug extending direction is more than the first lug extension side
To length.
Second aspect, the embodiment of the present invention provide another backlight module, including：Frame, light guide plate are sequentially located at described
Diffusion barrier, the second prism film on light guide plate and the first prism film are located at lamp bar and the position of the incidence surface side of the light guide plate
Shading rubber belt on the frame；Wherein, first prism film includes：First main part and extend first convex
Ear；The diffusion barrier and the non-overlapping region of the first lug；The frame includes：Four side walls；Except close to the lamp bar
Side the side wall except, the top of the excess-three side wall is below the prism top in first main part
End and the difference in height being less than are less than the thickness of the shading rubber belt；At least one of its excess-three side wall side wall
Top setting it is fluted, the groove is for accommodating the close first lug；The shading rubber belt is led with described first
Body portion does not contact；The shading rubber belt is at least pasted onto the side wall close to the side of the lamp bar, the lamp bar, setting
There is the top of the side wall of the groove and in the first lug in the groove.
Optionally, second prism film includes：Second main part and the second lug extended；The diffusion barrier with
The non-overlapping region of second lug；The groove is also a housing for close second lug；It is convex for described first
The case where ear and second lug are located at not the same side of the light guide plate, the first lug and second lug difference
It is contained in the groove of the different side walls；The light guide plate is located at for the first lug and second lug
The case where the same side, the first lug and second lug are contained in the groove of the same side wall；Wherein,
The first lug is staggered with second lug, alternatively, the first lug is located on second lug and institute
The length for stating the second lug extending direction is more than the length of the first lug extending direction.
The third aspect, the embodiment of the present invention provide another backlight module, including：Frame, diffuser plate are sequentially located at described
Diffusion barrier, the second prism film on diffuser plate and the first prism film, and the shading rubber belt on the frame；Wherein, described
First prism film includes：First main part and the first lug extended；The diffusion barrier and the first lug are non-overlapping
Region；The frame includes：Four side walls；The top of the side wall be less than first main part in prism tip,
And the difference in height being less than is less than the thickness of the shading rubber belt；The top setting of at least one side wall is fluted, described recessed
Slot is for accommodating the close first lug；The shading rubber belt is not contacted with first main part；The shading glue
Band is at least pasted onto the top for the side wall for being provided with the groove and in the first lug in the groove.
Optionally, second prism film includes：Second main part and the second lug extended；The diffusion barrier with
The non-overlapping region of second lug；The groove is also a housing for close second lug；It is convex for described first
The case where ear and second lug are located at not the same side of the diffuser plate, the first lug and second lug difference
It is contained in the groove of the different side walls；The diffuser plate is located at for the first lug and second lug
The case where the same side, the first lug and second lug are contained in the groove of the same side wall；Wherein,
The first lug is staggered with second lug, alternatively, the first lug is located on second lug and institute
The length for stating the second lug extending direction is more than the length of the first lug extending direction.
Optionally, for the side for first main part for extending the first lug, the first lug point
Edges at two ends of the cloth in the side；And/or the side of second main part for extending second lug,
Second lug is distributed in the edges at two ends of the side.
Fourth aspect, the embodiment of the present invention provide a kind of display device, including liquid crystal display panel；The LCD display
Plate includes：Positioned at the first polaroid of display side and far from second polaroid for showing side；The display device further includes：
Backlight module described in any one of the above embodiments；The shading rubber belt in the backlight module is also mutually glued with second polaroid
Patch.
Based on this, the above-mentioned backlight module provided through the embodiment of the present invention by the way that frame sinks, narrows shading rubber belt
So that it is not contacted with the prism tip of the first prism film, and diffusion barrier is improved in lamp bar side, the first prism can be reduced
Gap between film and the down polaroid of display panel, or even can remove gap between the two and make the first prism film and display
The down polaroid of panel is in direct contact, while can also at least fix the first prism film, and passes through securing first prism film
The second prism film for pushing down fixed lower section is realized that the stickup of backlight module and display panel is fixed, can even be eliminated to reduce
The display that display device occurs caused by prism anamorphic in backlight module is bad.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
Obtain other attached drawings according to these attached drawings.
Fig. 1 is a kind of cross-sectional view one for backlight module that the embodiment of the present invention 1 provides；
Fig. 2 a are the common structure schematic diagram one of prism film；
Fig. 2 b are the common structure schematic diagram two of prism film；
Fig. 3 is the principle schematic that prism film enhances light；
Fig. 4 a are the cross-sectional view one for the liquid crystal display device that the prior art provides；
Fig. 4 b are the local overlooking structural schematic diagram of backlight module corresponding with Fig. 4 a；
Fig. 5 a are that the cross-sectional view after Newton's ring phenomenon occurs for the liquid crystal display device that the prior art provides；
Fig. 5 b are the local overlooking structural schematic diagram of backlight module corresponding with Fig. 5 a；
Fig. 6 is a kind of cross-sectional view two for backlight module that the embodiment of the present invention 1 provides；
Fig. 7 is a kind of assembling flow path schematic diagram for backlight module that the embodiment of the present invention 1 provides；
Fig. 8 is a kind of close-up schematic view for backlight module that the embodiment of the present invention 1 provides；
Fig. 9 is a kind of cross-sectional view three for backlight module that the embodiment of the present invention 1 provides；
Figure 10 is a kind of cross-sectional view four for backlight module that the embodiment of the present invention 1 provides；
Figure 11 is a kind of cross-sectional view for backlight module that the embodiment of the present invention 2 provides；
Figure 12 is the cross-sectional view two for the liquid crystal display device that the prior art provides；
Figure 13 is a kind of cross-sectional view one for display device that the embodiment of the present invention 3 provides；
Figure 14 is a kind of cross-sectional view two for display device that the embodiment of the present invention 3 provides.
Specific implementation mode
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation describes, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
It is exemplary, the term " first " used in present patent application specification and claims, " second "
And similar word is not offered as any sequence, quantity or importance, is intended merely to distinguish different component parts." packet
Including " element or object that either the similar word such as "comprising" means to occur before the word cover and appear in the word presented hereinafter
Element either object and its equivalent and be not excluded for other elements or object." upper/top ", " under/lower section ", etc. instructions
The term of orientation or positional relationship is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience and purposes of illustration of the skill of the present invention
Art scheme simplifies description, does not indicate or imply the indicated device or element must have a particular orientation, with specific
Azimuth configuration and operation, therefore be not considered as limiting the invention.
Embodiment 1
As shown in Figure 1, the embodiment of the present invention 1 provides a kind of backlight module, including：Frame, light guide plate 10, is sequentially located at and leads
Diffusion barrier 20, the second prism film 32 on tabula rasa 10 and the first prism film 31 are located at the lamp bar of the incidence surface side of light guide plate 10
40 and the shading rubber belt 50 on frame；Wherein, the first prism film 31 includes：First main part 310 and extend the
One lug 311；First lug 311 is located at least in the first main part 310 close to the side of lamp bar 40；Second prism film 32 wraps
It includes：Second main part 320 and the second lug 321 for extending；Second lug 321 is located at least in the second main part 320 and leans on
The side of low beam item 40；The region non-overlapping with first lug 311, the second lug 321 of diffusion barrier 20；Close to lamp bar side,
First lug 311 is located on the second lug 321；Frame includes：Four side walls 60；Except the side wall 60 close to the side of lamp bar 40
Except, the top prism tip being below in the first main part 310 of the excess-three side wall 60 and difference in height being less than is less than
The thickness of shading rubber belt 50；Shading rubber belt 50 is not contacted with the first main part 310；50 band of shading glue is at least pasted onto by low beam
In the side wall 60 of the side of item 40, lamp bar 40 and first lug 311 and shading rubber belt 50 and the thickness difference of diffusion barrier 20 it is exhausted
To being worth the thickness less than shading rubber belt 50.
The concrete structure of the 1 above-mentioned backlight module provided in order to illustrate the embodiments of the present invention more clearly, it is right first below
The generation of the concrete structure of prism film and Newton's ring phenomenon illustrates in the prior art.
There are many arranged in parallel small for the upper surface prism film (Brightness Enhancement Film, BEF) distribution
Prism structure, prism structure extending direction be prism angle.
As shown in Figure 2 a, arrangement mode can be that the height (Height, label is in figure) of each prism structure is homogeneous
Together, spacing (Pitch, label is in figure) also all same, the plane at the stupefied place of prism tip, that is, each prism structure.
Alternatively, the arrangement mode of the prism structure of prism film upper table EDS maps can also be as shown in Figure 2 b, several have
It is inserted between the prism structure of low height (Height 1, label is in figure) and small spacing (Pitch1, mark in figure be)
One prism structure with more big height (Height 2, label is in figure), two neighboring height are the prism structure of H2
Between spacing (Pitch 2, label is in figure) it is wider.Under such structure, prism tip is the maximum each prism knot of height
The plane at the stupefied place of structure.
As shown in figure 3, light passes through the refraction of prism structure, emergent light angle will be converged, to realize the enhancing back of the body
The effect for the light luminance that optical mode group is sent out.To realize that blast maximizes, the upper and lower prism angle in backlight module is usually vertical
Setting.
As shown in fig. 4 a, in the prior art, it is typically to hollow out among shading rubber belt 50, makes the VA from backlight module 01
The light that area's (View Area, visible area) projects can further for directive display panel 02 to be shown, shading rubber belt 50 be viscous
It is attached between the down polaroid 104 of display panel 02 and upper prism film 31.
As shown in Figure 4 b, the solid line of vertical direction indicates that upper prism angle, the dotted line of horizontal direction indicate lower prism in figure
Angle, when upper prism film 31, lower prism film 32 do not deform, stupefied spacing is uniformly constant, interference phenomenon does not occur.
As shown in figure 5 a and 5b, after occurring irregularly to arch upward between upper and lower prism film, it will produce prism gap diminution
Area's (label is in figure) and prism gap expand area (label is in figure) so that the prism spacing at deformation interface edge
(Pitch) it can mutate, emergent light angle is caused to change, all can in gap shrinks area (S1) and gap enlargement area (S2)
The interference phenomenon of light is generated, so that occur the display uneven phenomenon of annular in the viewing area of display device, and with color
Rainbow texture, that is, generate Newton's ring.
The above-mentioned backlight module that the embodiment of the present invention 1 provides, it is intended to by reduce the first prism film 31 (i.e. upper prism) with
Due to the deformation space generated there are gap (GAP) between down polaroid, to effectively reduce Newton's ring risk.
It should be noted that above-mentioned backlight module is specially side entrance back module, a side of light guide plate 10 is
Incidence surface.Lamp bar 40 is usually made of wiring board 41 (such as FPC) and illumination region (such as LED chip) 42, is sent out from illumination region 42
Light injects the incidence surface 11 of light guide plate 10.
First prism film 31 is the usually said upper prism film of those skilled in the art, and the first main part 310 is ascended the throne
The main part in the areas VA in backlight module, first lug 311 are to extend from the first main part 310 along film direction.
Second prism film 32 is the usually said lower prism film of those skilled in the art, and the second main part 320 is ascended the throne
The main part in the areas VA in backlight module, the second lug 321 are to extend from the second main part 320 along film direction.
The one that above-mentioned frame is specifically as follows glue frame or is joined together to form by glue frame and outline border (being usually iron frame)
The glue iron frame of structure.
In addition to the side wall 60 close to the side (hereinafter referred to as lamp bar side) of lamp bar 40, the top of excess-three side wall 60
The prism tip being below in the first main part 310, and the difference in height being less than is less than the thickness of shading rubber belt 50, i.e., it will be existing
Frame in technology sinks.Meanwhile narrowing shading rubber belt in the prior art in the areas VA, make shading rubber belt 50 and first
Main part 310 does not contact, and reduces the height of upper surface and the prism tip of the first prism film 31 after shading rubber belt 50 sinks
Difference reduces after above-mentioned backlight module is bonded with liquid crystal display panel, between the first prism film 31 and down polaroid by
In the deformation space generated there are larger gap (GAP).
Here, above-mentioned frame is generally included there are four sequentially connected side wall 60.To ensure backlight module and display panel
The adherence force of fitting is enough, and display panel is avoided to be detached from, and has shading rubber belt 50 on aforementioned four side wall 60, that is, is formed cyclic annular.
Since shading rubber belt narrows in the areas VA, generate that membrane material is mobile, draws to prevent 31 surrounding of the first prism film to be not fixed
Wound, foreign matter etc. are bad, and separately consider that the monomer test request of the display device after fitting and client display device are frequently present of
Fall situation, need with shading rubber belt 50 mutually to fix the first prism film 31 by way of stickup.
In order to fix above-mentioned first prism film 31, the above-mentioned backlight module that the embodiment of the present invention 1 provides is specifically by first
The first lug 311 extended on prism film 31 is fixed on the larger lamp bar side of area, and in order to keep first lug 311 opposite
There can be downward sinking space in the first main part 310 of the first prism film 31, diffusion barrier 20 is changed in lamp bar side
Into so that first lug 311,321 lower section of the second lug do not have diffusion barrier 20, and control shading rubber belt 50 and diffusion barrier 20
The absolute value of thickness difference is less than the thickness of shading rubber belt 50, due to 321 equitant region of first lug 311 and the second lug
There is no diffusion barrier 20 so that can also connect while sinking after lamp bar side first lug 311 is overlapped on the second lug 321
Shading rubber belt 50 is contacted in the part of lamp bar side, so that the first prism film 31 is fixed on by the first lug 311 of sinking
50 lower section of shading rubber belt.
In addition to the side wall 60 except lamp bar side, the top of excess-three side wall 60 is less than the rib in the first main part 310
Vertex end difference in height is equal or approximately equal to the thickness of shading rubber belt 50, and shading rubber belt 50 and the thickness difference of diffusion barrier 20 are
Zero or be approximately zero (both i.e. uniform thickness or thickness is approximate) when, can make the first main part 310 of the first prism film 31 with
The surface that shading rubber belt 50 is pasted onto on remaining 60 top of side wall flushes or approximately flush, while the first master of the first prism film 31
The part for the first lug 311 that body portion 310 is pasted onto lamp bar side with shading rubber belt 50, which can also be realized, to be flushed or approximately flush
Effect so that after above-mentioned backlight module and display panel are pasted, can realize the first prism film 31 (i.e. upper prism film) with
Only have the tiny air gap (Air Gap) of 0~0.02mm between the down polaroid of display panel, while can also maintain the areas VA all
The down polaroid for being with shading rubber belt and display panel is mutually pasted.
Based on this, the 1 above-mentioned backlight module provided, by the way that frame sinks, narrows shading glue through the embodiment of the present invention
Band makes it not contacted with the prism tip of the first prism film, and is improved to diffusion barrier in lamp bar side, can reduce the first rib
Gap between mirror film and the down polaroid of display panel, or even can remove gap between the two and make the first prism film and show
Show that the down polaroid of panel is in direct contact, while can also at least fix the first prism film, and passes through securing first prism
Membrane pressure lives the second prism film of fixed lower section, realizes that the stickup of backlight module and display panel is fixed, can even disappear to reduce
Except the display that display device occurs caused by prism anamorphic in backlight module is bad.
Further, to improve each mutually fixed fastness of membrane material in above-mentioned backlight module, to the second prism film 32 in lamp
The second lug 32 that side is extended also is fixed, and concrete structure is as described below：
Refering to what is shown in Fig. 1, above-mentioned backlight module further includes：12 side of light-emitting surface for lamp bar 40 to be pasted onto to light guide plate 10
Lamp bar glue 70 on edge；The lamp bar glue extension 71 not covered by lamp bar 40 is extended on lamp bar glue 70；Close to lamp bar side,
The length of second lug, 321 extending direction is more than the length and 321 extending direction of the second lug of 311 extending direction of first lug
On be not pasted onto on lamp bar glue extension 70 by the subregion that first lug 311 covers.
Here, first lug 311,321 width of the second lug are not answered excessive, and in lamp bar side, first lug 311, second is convex
Ear 321, that is, far from viewing area, prevents lug bending from causing prism anamorphic as possible in both sides.
By taking the backlight module applied to small size handheld terminal LCD as an example, size and manufacturing tolerance, first lug are considered
311,1~2mm of width of the second lug 321 is advisable；Second lug 321 overlaps between lamp bar glue and shading glue, and reserved one
Overlapping interference occurs after preventing each membrane material structure from assembling for fixed gap (such as 0.2~0.25mm).
Further, as shown in fig. 6, above-mentioned backlight module further includes：It is set on diffusion barrier 20 and is located at the first main body
Light shielding block 80 between part 310, the second main part 320 and lamp bar 40.
Light shielding block 80 (also referred to as spreading secret note) can push down diffusion barrier 20, and shelter from and leaked from the incidence surface 11 of light guide plate 10
The strong light gone out.
Since light shielding block 80 is between the first main part 310, the second main part 320 and lamp bar 40, therefore above-mentioned
It can't see the first lug 311 extended from the first main part 310 in the cross-section structure of Fig. 6, from the second main part 320
On the second lug 321 for extending.
In the above-mentioned backlight module that the embodiment of the present invention 1 provides, frame can be glue iron frame, i.e., refering to what is shown in Fig. 1, above-mentioned
Frame includes：Outline border (being, for example, iron frame) and the glue frame between outline border and light guide plate 10；Wherein, outline border includes：Four
One sub- side wall 61；Glue frame includes：Two at least opposite the second sub- side walls 62；At least close to lamp bar side and close to lamp bar offside
Side wall 60 include：First sub- side wall 61 and the second sub- side wall 62；Upper surface of the light shielding block 80 far from diffusion barrier 20 with it is close
The top of the second sub- side wall 62 (i.e. the side wall of glue frame) in the side wall 60 of lamp bar side flushes, so that shading rubber belt 50 is in lamp bar
The part of side can be pasted onto in light shielding block 80.
Alternatively, the frame in above-mentioned backlight module may be the individual glue frame in conventional module, then light shielding block is separate
The upper surface of diffusion barrier is flushed with the top of the side wall close to lamp bar side.
Further, refering to what is shown in Fig. 1, above-mentioned backlight module may also include：Reflector plate 90 positioned at 10 lower section of light guide plate.
As shown in fig. 7, assembling process of the above-mentioned backlight module in lamp bar side is as described below：
(1) reflector plate is assembled：It is first to incite somebody to action for identical as the glue iron frame that iron frame is integrally formed and conventional glue frame by glue frame
Reflector plate is assembled on backboard, for the sake of simplifying, does not illustrate reflector plate and backboard in Fig. 7.
(2) light guide plate 10 and lamp bar 40 are assembled：Lamp bar 40 is assembled integrally with light guide plate 10 by lamp bar glue 70.Its
In, the lamp bar glue extension 71 (i.e. ear) not covered by lamp bar 40 extended is designed in 70 both sides of lamp bar glue；Lamp bar glue
The wiring board length that extension 71 stretches out lamp bar 40 is about 0.6mm~0.8mm, and width is 1mm or so.
(3) light guide plate 10 and lamp bar 40 are assembled on reflector plate：The bottom surface of light guide plate 10 is covered in reflector plate
On.
(4) diffusion barrier 20 and light shielding block 80 are assembled：In 10 over-assemble diffusion barrier 20 of light guide plate, 20 both sides of diffusion barrier fluting with
Realize the first prism film, on the second prism film respective ledge sinking and fixation.In 20 over-assemble light shielding block 80 of diffusion barrier, shading
Block 80 be located at the first prism film to be assembled the first main part, the second main part of the second prism film and lamp bar 40 it
Between.80 both sides of light shielding block cut removal, and width is wider by 0.15 than respective ledge on the first prism film to be assembled, the second prism film~
0.2mm.Light shielding block 80 laterally top and 40 0.2~0.25mm of distance of lamp bar, longitudinal 71 distances 0.15 with lamp bar glue extension~
0.2mm, thickness is interfered after preventing assembling；
(5) the second prism film 32 is assembled：Second lug 321 of the second prism film 32 is more than the first prism film to be assembled
First lug, the second lug 321 overlap 0.3~0.5mm with lamp bar glue extension 71, to ensure the fastness pasted；
(6) the first prism film 31 is assembled：311 to the second lug 321 of first lug of first prism film 31 is short, is located at second
Left hand edge 0.3mm or so on lug 321 and apart from lamp bar glue main part；
(7) shading rubber belt 50 is assembled：In lamp bar side, be reduced in shading rubber belt 50 80 left hand edge of light shielding block not with the first prism
Prism tip in first main part of film 31 is pasted, and 50 downside of shading rubber belt is pasted with light shielding block 80.
Finally, protective film can be attached on shading rubber belt 50, frame is run out of to limit outermost first prism film, and
It prevents foreign matter from entering, is bonded with display panel to pack shipment to module factory.
In above-mentioned Fig. 7, along cross-section structure, that is, as shown in Figure 1 above, the side B-B' in the directions A-A' after backlight module assembling
To cross-section structure, that is, it is as shown in Figure 6 above.
Here, as shown in part (a) in Fig. 8, the second lug 321 can be designed as rectangle, correspondingly, diffusion barrier 20 exists
The opening with the 321 equitant region design of the second lug is not rectangle yet.
Preferably, as shown in part (b) in Fig. 8, in the region close to lamp bar side light leakage occurs for light guide plate in order to prevent, also
Second lug 321 can be can be designed as it is trapezoidal, correspondingly, diffusion barrier 20 is not being set with 321 equitant region of the second lug
The opening of meter is inverted trapezoidal.
Frame is the structure of glue frame and iron frame one in above-mentioned backlight module, and the embodiment of the present invention 1 is without being limited thereto, equally may be used
Suitable for conventional glue frame backlight module, the cross-section structure of its excess-three side (i.e. top side and left and right sides) in addition to lamp bar side is as schemed
Shown in 9, i.e., in backlight module, the frame of 10 surrounding of light guide plate is glue frame, and the first prism film and the second prism film are in lamp bar side
Fixed form referring to earlier figures 1, details are not described herein again.
On the basis of the above, be improve the first prism film, the second prism film fix tightly solidity, further can also except
Its excess-three side (i.e. top side and left and right sides) except lamp bar side carries out lug and fixes, and concrete structure is as described below：
First lug 311 is also located at the first main part 310 close at least one of its excess-three side wall 60 side wall 60
Side, and/or, the second lug 321 is also located at the second main part 32 close at least one of its excess-three side wall 60 side
The side of wall 60；Fluted 60a is arranged at least one of its excess-three side wall 60 side wall 60, and groove 60a is close for accommodating
First lug 311 and/or the second lug 321；Shading rubber belt 50 be also pasted onto the side wall 60 that fluted 60a is set top and
In at least one of both first lug 311 and the second lug 321 in groove 60a.
Wherein, in addition to close to lamp bar side, the same of light guide plate 10 is respectively positioned on for first lug 311 and the second lug 321
The case where side, first lug 311 are staggered with the second lug 321, alternatively, first lug 311 be located at the second lug 321 it
Upper and 321 extending direction of the second lug length is more than the length of 311 extending direction of first lug.
In Figure 10 shown in the part (a), due to except close to lamp bar side side wall 60 in addition to, the top of excess-three side wall 60
The prism tip being below in the first main part of the first prism film and the difference in height being less than are less than the thickness of shading rubber belt 50
Degree, i.e. the top of its excess-three side wall 60 sinks, when light guide plate 10 only extend on the side in addition to lamp bar side the
When one lug 311, groove 60a is that first lug 311 provides a sinking and fixed space, and groove depth can be by membrane material thickness
Degree design is that is, identical as the thickness of the first prism film.
Likewise, as shown in part (b) in Figure 10, only extend on the side in addition to lamp bar side when light guide plate 10
When the second lug 321, groove 60a is that the second lug 321 provides a sinking and fixed space, groove depth can be by membrane materials
Thickness designs, i.e., identical as the thickness of the second prism film.
That is, have corresponding lug when all extending on the first prism film and the second prism film, and first lug 311, second
When lug 321 stretches to different lateral 60 respectively, first lug 311, the second lug 321 are located in the groove 60a of different lateral 60.
Alternatively, all extending on the first prism film and the second prism film has corresponding lug, and the same side wall 60 is stretched to,
That is the groove 60a of same side wall 60 accommodates first lug 311, the second lug 321.
Here, in order to enable the shading rubber belt 50 being arranged on side wall 60 can also be pasted onto in groove 60a it is first convex
On ear 311, the second lug 321, the case where the same side of light guide plate 10 is respectively positioned on for first lug 311 and the second lug 321,
In Figure 10 shown in (c) and the part (d), first lug 311 is staggered with the second lug 321.
Alternatively, as shown in part (e) in Figure 10, first lug 311 can also be designed on the second lug 321, simultaneously
And the length of 321 extending direction of the second lug is made to be more than the length of 311 extending direction of first lug, that is, expose the second lug
321 so as to 50 phase of shading rubber belt of top paste.
It should be noted that with reference to (a) in figure 10, (b) and (e) shown in part, when above-mentioned frame include outline border (such as
Iron frame) and when glue frame, portion that groove 60a can be by the second sub- side wall 62 of glue frame less than the first sub- side wall 61 of the outline border in outside
Divide and is formed；Alternatively, can also be with reference to shown in part (c) in figure 10, when above-mentioned frame includes outline border (such as iron frame) and glue frame
When, groove 60a can be formed on the second sub- side wall 62 of the glue frame of inside.
It is only the structure of glue frame for the frame in conventional backlight module, groove is with reference to the part (c) institute in figure 10
Show, is the recessed portion on side wall top.
Here, first lug 311 should be pre- between the top of extending direction and the groove 60a for accommodating the first lug 311
Certain interval is stayed, prevents assembling from interfering；And/or second lug 321 along the top of extending direction with accommodate second lug 321
Groove 60a between should reserve certain interval, prevent assembling interfere.
Further, for the side for the first main part for extending first lug 311, first lug 311 is distributed in
The edges at two ends of the side；And/or the side of the second main part for extending the second lug 321, the second lug 321
It is distributed in the edges at two ends of the side.That is the ear extended on the first prism film and/or the second prism film should far from viewing area,
Prevent lug bending from causing prism anamorphic.
Embodiment 2
As shown in figure 11, the embodiment of the present invention 2 provides another backlight module, including：Frame, light guide plate 10, successively position
In diffusion barrier 20, the second prism film 32 (in Figure 11 unmarked go out) and the first prism film 31 on light guide plate 10, it is located at light guide plate
The lamp bar 40 of 10 11 side of incidence surface and the shading rubber belt 50 on frame；Wherein, the first prism film 31 includes：First master
Body portion 310 and the first lug 311 extended；Diffusion barrier and the non-overlapping region of 20 first lugs 311；Frame includes：Four
A side wall 60；In addition to the side wall 60 close to lamp bar side, the top of excess-three side wall 60 is below in the first main part 310
Prism tip and the difference in height that is less than be less than the thickness of shading rubber belt 50；At least one of its excess-three side wall 60 side wall
Fluted 60a is arranged in 60 top, and groove 60a is for accommodating close first lug 311；Shading rubber belt 50 and the first main part
310 are divided not contact；Shading rubber belt 50 is at least pasted onto the side wall 60 close to lamp bar side, lamp bar 40, the side wall that fluted 60a is arranged
60 top and in the first lug 311 in groove 60a.
It should be noted that the side entrance back module that above-described embodiment 2 provides is compared to the side that previous embodiment 1 provides
Enter formula backlight module, the fixed form of the first prism film 31 is selected in its excess-three side wall 60 in addition to lamp bar side
At least side.Frame is sunk, shading rubber belt 50 narrow not with the prism in the first main part 310 of the first prism film 31
Top is in contact, and shading rubber belt 50 pastes the first lug 311 in groove 60a, to fix the first prism film 31.
For the second prism film 32 of 31 lower section of the first prism film is further firmly fixed, the second prism film 32 includes：
Second main part 320 and the second lug 321 for extending；Diffusion barrier 20 and the non-overlapping region of the second lug 321；Groove
60a is also a housing for the second close lug 321.
Here, with reference to (a) in Figure 10 of previous embodiment 1 partly and shown in the part (b), for first lug 311 and the
Two lugs 321 are located at the case where not the same side of light guide plate 10, and first lug 311 and the second lug 321 are respectively accommodated in difference
In the groove 60a of side wall 60.
With reference to previous embodiment 1 Figure 10 in (c) part, (d) partly and the part (e) shown in, for 311 He of first lug
Second lug 321 is located at the case where the same side of light guide plate 10, and first lug 311 and the second lug 321 are contained in the same side
In the groove 60a of wall 60；Wherein, first lug 311 is staggered with the second lug 321, alternatively, first lug 311 is located at the
On two lugs 321 and the length of 321 extending direction of the second lug is more than the length of 311 extending direction of first lug.
Further, for the side for the first main part for extending first lug 311, first lug 311 is distributed in
The edges at two ends of the side；And/or the side of the second main part for extending the second lug 321, the second lug 321
It is distributed in the edges at two ends of the side.That is the ear extended on the first prism film and/or the second prism film should far from viewing area,
Prevent lug bending from causing prism anamorphic.
In above-described embodiment 2, outline border can be only made of glue frame, alternatively, above-mentioned outline border also can be by outline border (such as iron
Frame) and glue frame constitute, as glue iron frame.Outline border side wall upper groove 60a open up mode and the specific set-up mode of each lug can
With reference to previous embodiment 1, details are not described herein again.
Embodiment 3
The embodiment of the present invention 3 further provides for a kind of backlight module, with reference to previous embodiment Figure 10 in the part (a) institute
Show, the backlight module, including：Frame, diffuser plate 10, diffusion barrier 20,32 and of the second prism film being sequentially located on diffuser plate 10
First prism film 31, and the shading rubber belt 50 on frame；Wherein, the first prism film 31 includes：First main part, 310 He
The first lug 311 extended；Diffusion barrier 20 and the non-overlapping region of first lug 311；Frame includes：Four (figures of side wall 60
In only illustrate the side wall 60 of side)；The top of side wall 60 is less than the prism tip in first main part 310 and is less than
Difference in height is less than the thickness of shading rubber belt 50；Fluted 60a is arranged in the top of at least one side wall 60, and the groove 60 is for accommodating
Close first lug 311；Shading rubber belt 50 is not contacted with the first main part 310；Shading rubber belt 50 is at least pasted onto setting
The top of the side wall 60 of fluted 60a and in the first lug 311 in groove 60a.
It should be noted that the down straight aphototropism mode set that above-described embodiment 3 provides is compared to previous embodiment 1 and embodiment
The fixed form of first prism film 31 is selected at least side in four side walls 60 by 2 side entrance back modules provided.
Frame is sunk, shading rubber belt 50 is narrowed not to connect with the prism tip in the first main part 310 of the first prism film 31
It touches, shading rubber belt 50 pastes the first lug 311 in groove 60a, to fix the first prism film 31.
For the second prism film 32 of 31 lower section of the first prism film is further firmly fixed, the second prism film 32 includes：
Second main part 320 and the second lug 321 for extending；Diffusion barrier 20 and the non-overlapping region of the second lug 321；Groove
60a is also a housing for the second close lug 321.
Here, with reference to (a) in Figure 10 of previous embodiment 1 partly and shown in the part (b), for first lug 311 and the
Two lugs 321 are located at the case where not the same side of light guide plate 10, and first lug 311 and the second lug 321 are respectively accommodated in difference
In the groove 60a of side wall 60.
With reference to previous embodiment 1 Figure 10 in (c) part, (d) partly and the part (e) shown in, for 311 He of first lug
Second lug 321 is located at the case where the same side of light guide plate 10, and first lug 311 and the second lug 321 are contained in the same side
In the groove 60a of wall 60；Wherein, first lug 311 is staggered with the second lug 321, alternatively, first lug 311 is located at the
On two lugs 321 and the length of 321 extending direction of the second lug is more than the length of 311 extending direction of first lug.
Further, for the side for the first main part for extending first lug 311, first lug 311 is distributed in
The edges at two ends of the side；And/or the side of the second main part for extending the second lug 321, the second lug 321
It is distributed in the edges at two ends of the side.That is the ear extended on the first prism film and/or the second prism film should far from viewing area,
Prevent lug bending from causing prism anamorphic.
In above-described embodiment 3, above-mentioned outline border also can be only made of glue frame, alternatively, above-mentioned outline border also can by outline border (such as
Iron frame) and glue frame constitute, as glue iron frame.The specific set-up mode for opening up mode and each lug of outline border side wall upper groove 60a
Previous embodiment 1 is can refer to, details are not described herein again.
After the above-mentioned backlight module that the embodiment of the present invention 1 is provided to embodiment 3 is bonded with display panel, in removal the
While gap between one prism film and the down polaroid of display panel so that shading rubber belt can also fix the first prism film
On the first lug extended so that the membrane material in backlight module can fix, and avoid generating shaking, to meet backlight module
Monomer and complete machine structure class testing requirement；Also, backlight module can pack shipment in the form of monomer, in display module factory
It is assembled with display panel, maintains the industrial chain division of labor.Since the major part of shading rubber belt is still arranged on frame so that the back of the body
Adherence force is enough after optical mode group is assembled with display panel, and display panel is prevented to be detached from, meanwhile, it not will produce in backlight module larger
Light leakage；In view of membrane material deformation retract so that each prism film upper lug is arranged far from display area on one side of each main part
Both ends at, to meet monomer and complete machine environmental reliability requirement.
Embodiment 4
The embodiment of the present invention 4 further provides a kind of display device, including liquid crystal display panel；Liquid crystal display panel packet
It includes：Positioned at the first polaroid (i.e. commonly called upper polaroid) of display side and far from second polaroid for showing side
(i.e. commonly called down polaroid)；And the backlight module that above-described embodiment 1 is provided to embodiment 3；Wherein, above-mentioned backlight mould
Shading rubber belt in group is also mutually pasted with the second polaroid.
Above-mentioned display device can be specifically liquid crystal display, LCD TV, Digital Frame, mobile phone, tablet computer, navigation
Instrument etc. has the product or component of any display function.
To prevent the areas backlight module VA edge light leakage, the BM (black matrix) of display panel from needing to cover all backlight
Shading region on module.
Backlight module that is exemplary, being provided respectively with the side entrance back module of the prior art and previous embodiment 1 herein
For, Figure 12 is the display device overall structure diagram after prior art display panel is bonded with backlight module, and Figure 13 is this
Inventive embodiments 1 provide backlight module be bonded with display panel after structural schematic diagram.
In above-mentioned Figure 12 and Figure 13, display panel 02 generally includes：To the color membrane substrates 100 of box and array substrate 101,
Be encapsulated in the liquid crystal layer between color membrane substrates 100 and array substrate 101 (because not illustrated in thickness smaller Figure 12 and Figure 13),
It is remote to be fitted in array substrate 101 for the upper polaroid 103 being fitted on a side surface of the color membrane substrates 100 far from array substrate 101
It is located at outside color membrane substrates 100 in array substrate 101 from the down polaroid 104 and being arranged on a side surface of color membrane substrates 100
The control circuit 105 of side.Concrete structure can continue to use the prior art, and the embodiment of the present invention 3 does not repeat this.
In above-mentioned Figure 12, the gap with 50 thickness of shading rubber belt between down polaroid 104 and upper prism film 31；And this
The backlight module 01 that inventive embodiments 1 to embodiment 3 provides will be under the side wall 60 in the frame of lamp bar offside and left and right sides
It is heavy, and make shading rubber belt 50 narrows on the areas VA periphery not connect with the prism tip of the first prism film 31 (i.e. upper prism film)
It touches, but is pasted onto in the first lug 311 extended from the first prism film 31.
It so, can after the backlight module that above-described embodiment 1 to embodiment 3 provides is bonded with display panel
To reduce the gap between the first prism film and the down polaroid of display panel, or even it can remove gap between the two and make the
The down polaroid of one prism film and display panel is in direct contact, so as to reduce in addition can further eliminate in backlight module due to
The display that display device occurs caused by prism anamorphic is bad.
Further, when requiring smaller due to handheld terminal display device left and right sides module frame design, work as shading rubber belt
The minimum widith that can be cut out when being difficult to meet the design requirement of display device module frame left and right sides, as shown in figure 14,
The side wall of glue frame in the outline border of left and right sides in backlight module 01 can be removed, only using outline border (such as iron frame) as frame,
That is the left and right sides of light guide plate 10 only has the first side wall 61 of outline border；After backlight module 01 is bonded with display panel 02, and adopt
With side coating (such as the hot melt adhesive or UV optical cements) mode of glue material 106 by display panel and backlight module outline border (such as
Iron frame) it bonds.The upper and lower sides of display device are smaller to the requirement of module frame design, and the structure of the larger bonding of shading can be used, have
Body structure can refer to the illustrating to embodiment 3 of previous embodiment 1, and details are not described herein again.
It should be noted that above-mentioned left and right sides refer to display device four sides in, with two lines of viewer
Two perpendicular offsides；Upper and lower sides refer in four sides of display device parallel with two lines of viewer two
A offside.
The above description is merely a specific embodiment, but scope of protection of the present invention is not limited thereto, any
Those familiar with the art in the technical scope disclosed by the present invention, can easily think of the change or the replacement, and should all contain
Lid is within protection scope of the present invention.Therefore, protection scope of the present invention should be based on the protection scope of the described claims.
Claims (10)
1. a kind of backlight module, which is characterized in that including：Frame, light guide plate, the diffusion barrier being sequentially located on the light guide plate,
Second prism film and the first prism film, the lamp bar positioned at the incidence surface side of the light guide plate and shading on the frame
Adhesive tape；Wherein,
First prism film includes：First main part and the first lug extended；The first lug is located at least in institute
The first main part is stated close to the side of the lamp bar；Second prism film includes：Second main part and extend the
Two lugs；Second lug is located at least in second main part close to the side of the lamp bar；
The diffusion barrier and the first lug, second lug are non-overlapping；Close to the side of the lamp bar, described the
One lug is located on second lug；
The frame includes：Four side walls；In addition to the side wall close to the side of the lamp bar, the excess-three side wall
The top prism tip being below in first main part and the difference in height that is less than be less than the thickness of the shading rubber belt
Degree；
The shading rubber belt is not contacted with first main part；The shading rubber belt is at least pasted onto close to the lamp bar
In the side wall of side, the lamp bar and the first lug and the thickness difference of the shading rubber belt and the diffusion barrier
Absolute value be less than the shading rubber belt thickness.
2. backlight module according to claim 1, which is characterized in that the backlight module further includes：
Lamp bar glue for being pasted onto the lamp bar on the light-emitting surface edge of the light guide plate；It is extended with not on the lamp bar glue
The lamp bar glue extension covered by the lamp bar；
It is more than the first lug extending direction in the length close to the side of the lamp bar, the second lug extending direction
The lamp bar glue is not pasted onto by the subregion that the first lug covers on length and the second lug extending direction
On extension.
3. backlight module according to claim 1, which is characterized in that the backlight module further includes：
It is set on the diffusion barrier and between first main part, second main part and the lamp bar
Light shielding block；
The frame includes：Outline border and the glue frame between the outline border and the light guide plate；The outline border includes：Four
One sub- side wall；The glue frame includes：Two at least opposite the second sub- side walls；At least close to the side of the lamp bar and close
The side wall of the lamp bar offside includes：The first sub- side wall and the second sub- side wall；
Upper surface of the light shielding block far from the diffusion barrier and described the in the side wall of the side of the lamp bar
The top of two sub- side walls flushes；
Alternatively,
The frame is glue frame；
Upper surface of the light shielding block far from the diffusion barrier is flushed with the top of the side wall close to the side of the lamp bar.
4. backlight module according to claim 1, which is characterized in that
The first lug is also located at first main part close at least one of its excess-three side wall side
The side of wall, and/or, second lug is also located at second main part in its excess-three side wall at least
The side of one side wall；
The top setting of at least one of its excess-three side wall side wall is fluted, and the groove is close for accommodating
The first lug and/or second lug；
The shading rubber belt be also pasted onto the top for the side wall for being provided with the groove and in the groove described in
In at least one of both first lug and second lug；
Wherein, in addition to close to the side of the lamp bar, described lead is respectively positioned on for the first lug and second lug
The case where the same side of tabula rasa, the first lug are staggered with second lug, alternatively, the first lug is located at institute
It states on the second lug and the length of the second lug extending direction is more than the length of the first lug extending direction.
5. a kind of backlight module, which is characterized in that including：Frame, light guide plate, be sequentially located at diffusion barrier on the light guide plate,
Second prism film and the first prism film, the lamp bar for being located at the incidence surface side of the light guide plate and the shading on the frame
Adhesive tape；Wherein,
First prism film includes：First main part and the first lug extended；The diffusion barrier and described first convex
The non-overlapping region of ear；
The frame includes：Four side walls；In addition to the side wall close to the side of the lamp bar, the excess-three side wall
The top prism tip being below in first main part and the difference in height that is less than be less than the thickness of the shading rubber belt
Degree；
The top setting of at least one of its excess-three side wall side wall is fluted, and the groove is close for accommodating
The first lug；
The shading rubber belt is not contacted with first main part；The shading rubber belt is at least pasted onto close to the lamp bar
The side wall of side, the lamp bar, be provided with the groove the side wall top and in the groove described in
In first lug.
6. backlight module according to claim 5, which is characterized in that
Second prism film includes：Second main part and the second lug extended；The diffusion barrier and described second convex
The non-overlapping region of ear；The groove is also a housing for close second lug；
The case where not the same side of the light guide plate is located at for the first lug and second lug, the first lug
It is respectively accommodated in the Bu Tong groove of the side wall with second lug；
The case where the same side of the light guide plate is located at for the first lug and second lug, the first lug and
Second lug is contained in the groove of the same side wall；Wherein, the first lug and second lug
It is staggered, alternatively, the first lug is located on second lug and the length of the second lug extending direction is big
In the length of the first lug extending direction.
7. a kind of backlight module, which is characterized in that including：Frame, diffuser plate, be sequentially located at diffusion barrier on the diffuser plate,
Second prism film and the first prism film, and the shading rubber belt on the frame；Wherein,
First prism film includes：First main part and the first lug extended；The diffusion barrier and described first convex
The non-overlapping region of ear；
The frame includes：Four side walls；The top of the side wall is less than the prism tip and low in first main part
In difference in height be less than the shading rubber belt thickness；
The top setting of at least one side wall is fluted, and the groove is for accommodating the close first lug；
The shading rubber belt is not contacted with first main part；The shading rubber belt, which is at least pasted onto, is provided with the groove
The side wall top and in the first lug in the groove.
8. backlight module according to claim 7, which is characterized in that
Second prism film includes：Second main part and the second lug extended；The diffusion barrier and described second convex
The non-overlapping region of ear；The groove is also a housing for close second lug；
The case where not the same side of the diffuser plate is located at for the first lug and second lug, the first lug
It is respectively accommodated in the Bu Tong groove of the side wall with second lug；
The case where the same side of the diffuser plate is located at for the first lug and second lug, the first lug and
Second lug is contained in the groove of the same side wall；Wherein, the first lug and second lug
It is staggered, alternatively, the first lug is located on second lug and the length of the second lug extending direction is big
In the length of the first lug extending direction.
9. according to the backlight module described in claim 4 or 6 or 8, which is characterized in that
Side for first main part for extending the first lug, the first lug are distributed in the side
Edges at two ends；
And/or
Side for second main part for extending second lug, second lug are distributed in the side
Edges at two ends.
10. a kind of display device, including liquid crystal display panel；The liquid crystal display panel includes：First positioned at display side is inclined
Second polaroid of mating plate and the separate display side；It is characterized in that, the display device further includes：Such as claim 1 to 9
Any one of them backlight module；
The shading rubber belt in the backlight module is also mutually pasted with second polaroid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810150898.9A CN108279533B (en) | 2018-02-13 | 2018-02-13 | Backlight module and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810150898.9A CN108279533B (en) | 2018-02-13 | 2018-02-13 | Backlight module and display device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108279533A true CN108279533A (en) | 2018-07-13 |
| CN108279533B CN108279533B (en) | 2021-04-30 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810150898.9A Expired - Fee Related CN108279533B (en) | 2018-02-13 | 2018-02-13 | Backlight module and display device |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020252941A1 (en) * | 2019-06-19 | 2020-12-24 | 武汉华星光电技术有限公司 | Backlight module and display device thereof |
| CN112649909A (en) * | 2020-12-22 | 2021-04-13 | 凯鑫森(上海)功能性薄膜产业有限公司 | Prism lens and application thereof |
| CN113253381A (en) * | 2021-05-24 | 2021-08-13 | 佘晓峰 | Light guide structure capable of controlling light emitting position |
| CN113759606A (en) * | 2021-09-13 | 2021-12-07 | 京东方科技集团股份有限公司 | Backlight module and display device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102313174A (en) * | 2010-06-30 | 2012-01-11 | 欧姆龙株式会社 | Area light source device |
| CN203703815U (en) * | 2014-03-06 | 2014-07-09 | 京东方光科技有限公司 | Prismatic lens, backlight module and display device |
| US20150198756A1 (en) * | 2014-01-13 | 2015-07-16 | Samsung Display Co., Ltd | Optical pattern sheet, backlight unit, and liquid crystal display having the same |
| CN106896582A (en) * | 2017-04-25 | 2017-06-27 | 武汉华星光电技术有限公司 | Backlight module and display |
| CN206505202U (en) * | 2017-03-08 | 2017-09-19 | 信利半导体有限公司 | A kind of backlight |
| CN206531989U (en) * | 2017-03-06 | 2017-09-29 | 芜湖华瑞光电有限公司 | A kind of Novel backlight |
| CN206671723U (en) * | 2016-04-05 | 2017-11-24 | 株式会社日本显示器 | Backlight arrangement and the liquid crystal display device for possessing the backlight arrangement |
-
2018
- 2018-02-13 CN CN201810150898.9A patent/CN108279533B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102313174A (en) * | 2010-06-30 | 2012-01-11 | 欧姆龙株式会社 | Area light source device |
| US20150198756A1 (en) * | 2014-01-13 | 2015-07-16 | Samsung Display Co., Ltd | Optical pattern sheet, backlight unit, and liquid crystal display having the same |
| CN203703815U (en) * | 2014-03-06 | 2014-07-09 | 京东方光科技有限公司 | Prismatic lens, backlight module and display device |
| CN206671723U (en) * | 2016-04-05 | 2017-11-24 | 株式会社日本显示器 | Backlight arrangement and the liquid crystal display device for possessing the backlight arrangement |
| CN206531989U (en) * | 2017-03-06 | 2017-09-29 | 芜湖华瑞光电有限公司 | A kind of Novel backlight |
| CN206505202U (en) * | 2017-03-08 | 2017-09-19 | 信利半导体有限公司 | A kind of backlight |
| CN106896582A (en) * | 2017-04-25 | 2017-06-27 | 武汉华星光电技术有限公司 | Backlight module and display |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020252941A1 (en) * | 2019-06-19 | 2020-12-24 | 武汉华星光电技术有限公司 | Backlight module and display device thereof |
| CN112649909A (en) * | 2020-12-22 | 2021-04-13 | 凯鑫森(上海)功能性薄膜产业有限公司 | Prism lens and application thereof |
| CN113253381A (en) * | 2021-05-24 | 2021-08-13 | 佘晓峰 | Light guide structure capable of controlling light emitting position |
| CN113253381B (en) * | 2021-05-24 | 2023-08-25 | 佘晓峰 | Light guide structure capable of controlling luminous position |
| CN113759606A (en) * | 2021-09-13 | 2021-12-07 | 京东方科技集团股份有限公司 | Backlight module and display device |
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| CN108279533B (en) | 2021-04-30 |
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