CN208607472U - It is a kind of for fixing the adhesive tape, backlight module and liquid crystal display device of diaphragm - Google Patents
It is a kind of for fixing the adhesive tape, backlight module and liquid crystal display device of diaphragm Download PDFInfo
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- CN208607472U CN208607472U CN201821339375.0U CN201821339375U CN208607472U CN 208607472 U CN208607472 U CN 208607472U CN 201821339375 U CN201821339375 U CN 201821339375U CN 208607472 U CN208607472 U CN 208607472U
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- diaphragm
- adhesive tape
- fixing
- bonding plane
- hole
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Abstract
The utility model discloses a kind of for fixing the adhesive tape, backlight module and liquid crystal display device of diaphragm, belongs to liquid-crystal apparatus technical field.The adhesive tape for being used to fix diaphragm is double-sided adhesive, double-sided adhesive includes two bonding planes being oppositely arranged, wherein the first bonding plane, for Nian Jie with diaphragm, the second bonding plane is for Nian Jie with backboard, and double-sided adhesive is provided with engraved structure, engraved structure extends from the first bonding plane towards the second bonding plane.A kind of backlight module, including above-mentioned for fixing the adhesive tape of diaphragm.A kind of liquid crystal display device, including above-mentioned backlight module.The adhesive tape for fixing diaphragm of the utility model on the adhesive tape for fixing diaphragm by being provided with engraved structure, when diaphragm expansion, part diaphragm is able to enter the moving distance in engraved structure to reduce diaphragm relative to backboard, to avoid being easy to happen degumming phenomenon between diaphragm and adhesive tape.
Description
Technical field
The utility model relates to liquid-crystal apparatus technical field more particularly to a kind of adhesive tapes for fixing diaphragm, backlight mould
Group and liquid crystal display device.
Background technique
Liquid crystal display device (Liquid Crystal Display, LCD) has thin fuselage, power saving, radiationless etc. numerous
Advantage is widely used, such as: mobile phone, personal digital assistant (PDA), digital camera, computer screen or notes
This computer screen etc..
Liquid crystal display device on existing market is largely backlight liquid crystal display device comprising shell is set to shell
Intracorporal liquid crystal display panel and the backlight module being set in the housing (Backlight module).Since liquid crystal display panel itself is not sent out
Light, needs the light source provided by backlight module normally to show image, and therefore, backlight module becomes the pass of liquid crystal display device
One of key asembly.Backlight module is divided into side entrance back module and down straight aphototropism mode set according to the difference of light source incidence position.
Wherein, backlight module generally comprises: light source, bottom reflector plate (REF), light guide plate (LGP), prismatic lens (Brightness
Enhancement Film, BEF), diffusion sheet (DF) and reflective polarizers (DBEF) etc..Bottom reflector plate is assembled in light guide plate
Its main function of downside be to reflect below the light guide plate light being pierced by, improve the utilization rate of light source.Light guide plate is then by light
The linear light source that source is issued is converted to area source；Diffusion sheet is generally used for generating diffusion and light enhancing effect；Prismatic lens are used for will
The light that light source issues has the function that add lustre to centre aggregation；Reflective polarizers are used for that for being sponged script by polaroid
Part light back into backlight source recycles, and when use must be consistent with angle inclined under glass, uses reflective polarizers backlight
Light when brightness can reduce but penetrate glass will increase.
It can be seen that optics of the above-mentioned several optical diaphragms (bottom reflector plate, prismatic lens and diffusion sheet etc.) to entire mould group
Display effect has strong influence, it is necessary to strict guarantee optical diaphragm flatness with higher and metastable position essence
Degree, cannot especially make optical diaphragm that the play of relative displacement occur in mould group, therefore study the fixing means of its optical diaphragm
Seem particularly necessary.
The fixed form of its optical diaphragm of general traditional backlight module is mainly that the muscle position for utilizing backboard side to stretch out hangs drawing
The hangers that four side length of diaphragm goes out.The muscle position of different number, corresponding diaphragm are generally reserved on backboard according to the size of mould group
On also design the hangers of different number and match (the muscle position of the general bigger setting of mould packet size is more) with reinforcing rib.However,
There are optical diaphragms to need the aperture at hangers for the fixed form, and diaphragm producting process difficulty increases, increased costs；Optical diaphragm
When assembling with backboard muscle position, due to weaker at diaphragm hangers, it is easy to make diaphragm hangers from aperture greatly if dilatory force is spent
Position cracking (be easy to appear at hole location stress concentration), this will result in diaphragm and places in internal out-of-flatness, influence optics
Display effect, the reliability decrease for causing mould group integrally to use；And the presence of muscle position keeps the frame of entire mould group thick on backboard
Degree increases, and the aesthetics of complete machine is made the problems such as to decline.
In view of the above-mentioned problems, existing backlight module is bonded together optical diaphragm and backboard progress using fixation adhesive tape
Fixed, this kind of fixed form can save the muscle position being arranged on backboard relative to ear suspension type fixed form, reduce entire mould group
Thickness.
However, the adhesive tape that this kind of fixed form uses has that retractility is poor, so that optical diaphragm was using
In journey when fever expansion, backboard and adhesive tape cannot stretch together with diaphragm, so that being easy hair between diaphragm and adhesive tape
Raw degumming phenomenon, and then do not have fixed function.
For this purpose, it is urgent to provide a kind of for fixing the adhesive tape, backlight module and liquid crystal display device of diaphragm, it is above-mentioned to solve
Problem.
Utility model content
Being designed to provide for the utility model embodiment is a kind of for fixing the adhesive tape of diaphragm, to solve diaphragm expansion,
When so that there is relative movement between diaphragm and backboard, degumming phenomenon is easy to happen between diaphragm and adhesive tape, and then adhesive tape rises not
To fixed function.
The another object of the utility model embodiment is to provide a kind of backlight module, even if to realize that it is swollen that diaphragm occurs
It is swollen, so that it is there is relative movement between backboard, backlight module still can guarantee being fixedly connected between backboard and diaphragm.
The further object of the utility model embodiment is to provide a kind of liquid crystal display device, so that liquid crystal display device
High reliablity, picture quality are stablized.
For this purpose, the utility model embodiment uses following technical scheme:
It is a kind of that for fixing the adhesive tape of diaphragm, the adhesive tape is double-sided adhesive, the double-sided adhesive include be oppositely arranged it is two viscous
Junction, wherein the first bonding plane, for Nian Jie with diaphragm, the second bonding plane is for Nian Jie with backboard, and the double-sided adhesive is provided with
Engraved structure, the engraved structure extend from first bonding plane towards the second bonding plane.
By being provided with engraved structure on the adhesive tape for fixing diaphragm, engraved structure is from for be bonded with diaphragm
One bonding plane extends towards for the second bonding plane Nian Jie with backboard, and when diaphragm expansion, part diaphragm is able to enter hollow out
To reduce moving distance of the diaphragm relative to backboard in structure, to avoid being easy to happen degumming phenomenon between diaphragm and adhesive tape.
As above-mentioned for fixing a kind of preferred embodiment of the adhesive tape of diaphragm, the engraved structure is through-hole or blind hole.
As above-mentioned for fixing a kind of preferred embodiment of the adhesive tape of diaphragm, between the two neighboring through-hole edge away from
From for 1-2mm.
As above-mentioned for fixing a kind of preferred embodiment of the adhesive tape of diaphragm, the cross section of the through-hole is square, justifies
Shape or triangle.
As above-mentioned for fixing a kind of preferred embodiment of the adhesive tape of diaphragm, when the cross section of the through-hole is round,
Aperture is 3-5mm.
As above-mentioned for fixing a kind of preferred embodiment of the adhesive tape of diaphragm, along from first bonding plane towards described the
The cross-sectional area of through-hole described in the direction of two bonding planes is gradually reduced.
As above-mentioned for fixing a kind of preferred embodiment of the adhesive tape of diaphragm, when the cross section of the through-hole is round, institute
The maximum gauge for stating through-hole is 3-5mm.
As above-mentioned for fixing a kind of preferred embodiment of the adhesive tape of diaphragm, the adhesive tape is grey or black belt.
A kind of backlight module, including above-mentioned for fixing the adhesive tape of diaphragm, the first bonding plane and diaphragm of the adhesive tape are viscous
It connects, the second bonding plane of the adhesive tape is Nian Jie with backboard.
The backlight module is using above-mentioned for even if realizing that diaphragm expands, making itself and back after fixing the adhesive tape of diaphragm
There is relative movement between plate, backlight module still can guarantee being fixedly connected between backboard and diaphragm.
A kind of liquid crystal display device, including above-mentioned backlight module.
After adopting the above structure, so that the high reliablity of liquid crystal display device, picture quality are stablized.
The utility model embodiment the utility model has the advantages that
By being provided with engraved structure on the adhesive tape for fixing diaphragm, the engraved structure is from for Nian Jie with diaphragm
The first bonding plane extend towards for second bonding plane Nian Jie with backboard, when diaphragm expands, part diaphragm is able to enter
To reduce moving distance of the diaphragm relative to backboard in engraved structure, so that it is existing to avoid being easy to happen degumming between diaphragm and adhesive tape
As.
Detailed description of the invention
Fig. 1 is provided by the embodiment of the utility model a kind of for fixing the schematic cross-section of the adhesive tape of diaphragm；
Fig. 2 be it is provided by the embodiment of the utility model another be used for fix diaphragm adhesive tape schematic cross-section；
Fig. 3 is a kind of schematic cross-section of backlight module provided by the embodiment of the utility model；
Fig. 4 is the schematic cross-section of another backlight module provided by the embodiment of the utility model.
In figure:
1, adhesive tape；11, the first bonding plane；12, the second bonding plane；13, through-hole；
2, diaphragm；3, backboard.
Specific embodiment
Further illustrate the technical solution of the utility model below with reference to the accompanying drawings and specific embodiments.
Disclosed in an embodiment of the present invention it is a kind of for fixing the adhesive tape of diaphragm, as shown in Figure 1, this is used to fix film
The adhesive tape 1 of piece is double-sided adhesive, and double-sided adhesive includes two bonding planes being oppositely arranged, wherein the first bonding plane 11 is used to glue with diaphragm 2
It connects, the second bonding plane 12 is for Nian Jie with backboard 3, and double-sided adhesive is provided with engraved structure, and engraved structure is from the first bonding plane 11
Extend towards the second bonding plane 12.By being provided with engraved structure on the adhesive tape 1 for fixing diaphragm 2, engraved structure is from being used for
First bonding plane 11 Nian Jie with diaphragm 2 is towards for second bonding plane 12 extension Nian Jie with backboard 3, when diaphragm 2 expands, portion
Diaphragm 2 is divided to be able to enter in engraved structure to reduce moving distance of the diaphragm 2 relative to backboard 3, to avoid diaphragm 2 and glue
Degumming phenomenon is easy to happen between band 1.
Specifically, the engraved structure on adhesive tape 1 is through-hole 13 or blind hole.In this present embodiment, engraved structure is through-hole 13,
And the distance between two neighboring 13 edge of through-hole is 1-2mm, can guarantee can have when the first adhesive layer is Nian Jie with diaphragm 2 in this way
There is certain adhesive strength.Wherein, the cross section of through-hole 13 be square, the arbitrary shapes such as round or triangle, the present embodiment
This is not restricted.It should be noted that when its cross section of the through-hole 13 of engraved structure is round, aperture 3-5mm；When logical
When the cross section in hole 13 is square, its side length is 3-5mm, in this way can be when diaphragm 2 expands, and part diaphragm 2 is able to enter
Into through-hole 13, to reduce moving distance of the diaphragm 2 relative to backboard 3.About adjacent two through hole 13 in other embodiments
The distance at edge and the size in aperture, can be adjusted according to the actual situation.
Disclosed in the another preferred embodiment of the utility model it is a kind of for fixing the adhesive tape of diaphragm, as shown in Fig. 2, should
Adhesive tape 1 and above-mentioned adhesive tape 1 are essentially identical, and the difference of the two is, through-hole 13 is along from 11 direction of the first bonding plane in engraved structure
The direction of second bonding plane 12, cross-sectional area are gradually reduced.It can guarantee have between the second bonding plane 12 and backboard 3 in this way
There are enough adhesive strengths.When the cross section of through-hole 13 is round simultaneously, the maximum gauge of through-hole 13 is 3-5mm.
In addition, adhesive tape 1 is grey or black belt, to play interception.
A kind of backlight module is also disclosed in the present embodiment, as shown in Figure 3-4, including above-mentioned for fixing the adhesive tape of diaphragm, glue
1 first bonding plane 11 of band is Nian Jie with diaphragm 2, and the second bonding plane 12 of adhesive tape 1 is Nian Jie with backboard 3.The backlight module is using above-mentioned
After fixing the adhesive tape 1 of diaphragm 2, even if realizing that diaphragm 2 expands, it is made to there is relative movement, backlight between backboard 3
Mould group still can guarantee being fixedly connected between backboard 3 and diaphragm 2.
The present embodiment discloses a kind of liquid crystal display device, including above-mentioned backlight module.After adopting the above structure, so that liquid
The high reliablity of crystal device, picture quality are stablized.
Obviously, the above embodiments of the present invention is used for the purpose of clearly illustrating examples for clearly illustrating the present invention, and
It is not limitations of the embodiments of the present invention.For those of ordinary skill in the art, in above description
On the basis of can also make other variations or changes in different ways.There is no need and unable to give all embodiments
Exhaustion.Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention etc., should be included in
Within the protection scope of the utility model claims.
Claims (10)
1. a kind of for fixing the adhesive tape of diaphragm, which is characterized in that the adhesive tape (1) is double-sided adhesive, and the double-sided adhesive includes phase
To two bonding planes of setting, wherein the first bonding plane (11) is for Nian Jie with diaphragm (2), the second bonding plane (12) is used for and backboard
(3) it is bonded, and the double-sided adhesive is provided with engraved structure, the engraved structure is from first bonding plane (11) towards described second
Bonding plane (12) extends.
2. according to claim 1 for fixing the adhesive tape of diaphragm, which is characterized in that the engraved structure is through-hole (13)
Or blind hole.
3. according to claim 2 for fixing the adhesive tape of diaphragm, which is characterized in that two neighboring through-hole (13) side
The distance between edge is 1-2mm.
4. according to claim 2 for fixing the adhesive tape of diaphragm, which is characterized in that the cross section of the through-hole (13) is
Square, round or triangle.
5. according to claim 4 for fixing the adhesive tape of diaphragm, which is characterized in that the cross section of the through-hole (13) is
When round, aperture 3-5mm.
6. according to claim 2 for fixing the adhesive tape of diaphragm, which is characterized in that along from first bonding plane (11)
It is gradually reduced towards the cross-sectional area of through-hole (13) described in the direction of second bonding plane (12).
7. according to claim 6 for fixing the adhesive tape of diaphragm, which is characterized in that the cross section of the through-hole (13) is
When round, the maximum gauge of the through-hole (13) is 3-5mm.
8. according to claim 1 for fixing the adhesive tape of diaphragm, which is characterized in that the adhesive tape (1) be grey or
Black belt.
9. a kind of backlight module, which is characterized in that the glue including being used to fix diaphragm described in claim 1-8 any one
The first bonding plane (11) of band, the adhesive tape (1) is Nian Jie with diaphragm (2), the second bonding plane (12) and backboard of the adhesive tape (1)
(3) it is bonded.
10. a kind of liquid crystal display device, which is characterized in that including backlight module as claimed in claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821339375.0U CN208607472U (en) | 2018-08-17 | 2018-08-17 | It is a kind of for fixing the adhesive tape, backlight module and liquid crystal display device of diaphragm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821339375.0U CN208607472U (en) | 2018-08-17 | 2018-08-17 | It is a kind of for fixing the adhesive tape, backlight module and liquid crystal display device of diaphragm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208607472U true CN208607472U (en) | 2019-03-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821339375.0U Active CN208607472U (en) | 2018-08-17 | 2018-08-17 | It is a kind of for fixing the adhesive tape, backlight module and liquid crystal display device of diaphragm |
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| CN (1) | CN208607472U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112859425A (en) * | 2021-03-05 | 2021-05-28 | 福州京东方光电科技有限公司 | Backlight module, manufacturing method thereof and display device |
-
2018
- 2018-08-17 CN CN201821339375.0U patent/CN208607472U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112859425A (en) * | 2021-03-05 | 2021-05-28 | 福州京东方光电科技有限公司 | Backlight module, manufacturing method thereof and display device |
| WO2022183746A1 (en) * | 2021-03-05 | 2022-09-09 | 京东方科技集团股份有限公司 | Backlight module and method for manufacturing same, and display device |
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