CN107490543A - Device and cohesive force for simulating two-sided tape cohesive force determine method - Google Patents
Device and cohesive force for simulating two-sided tape cohesive force determine method Download PDFInfo
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- CN107490543A CN107490543A CN201710814227.3A CN201710814227A CN107490543A CN 107490543 A CN107490543 A CN 107490543A CN 201710814227 A CN201710814227 A CN 201710814227A CN 107490543 A CN107490543 A CN 107490543A
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- G01N19/04—Measuring adhesive force between materials, e.g. of sealing tape, of coating
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Abstract
The invention discloses a kind of device for being used to simulate two-sided tape cohesive force and cohesive force to determine method, to determine the cohesive force of the two-sided tape both sides for adhering to display panel and backlight, improves the service life of display module.Device for simulating two-sided adhesive type cohesive force measuring includes：Adjustable first adsorption plate of absorption affinity；Adjustable second adsorption plate of absorption affinity；Adsorbed layer between first adsorption plate and second adsorption plate.Pass through the first adsorption plate of setting and the second adsorption plate and adsorbed layer, display panel, backlight and the two-sided tape in simulative display module can be distinguished, tested by carrying out peel test and reliability, obtain the second cohesive force between the first bonding force and two-sided tape and the backlight between two-sided tape and display panel.
Description
Technical field
The present invention relates to display preparing technical field, disclose a kind of device for being used to simulate two-sided tape cohesive force and
Cohesive force determines method.
Background technology
Traditional display module is in the preparation, it is necessary to the two-sided tape that display panel and backlight are passed through into black non transparent
It is bonded together, the one side of two-sided tape pastes display panel, and another side pastes backlight, typically by two-sided tape two sides
Bond area and the difference for bonding dynamics design, the cohesive force for the one side that two-sided tape is used to paste backlight are more than double faced adhesive tape
Band is used for the one side for pasting display panel, so when later maintenance is dismantled, two-sided tape could be separated with display panel,
Backlight with two-sided tape can be with recycling.
But in actually generating, set up due to the variation of display module size, during the cohesive force on two-sided tape two sides
That counts is unreasonable, easily causes display module in use for some time, display panel separates with backlight, or is dismantling
When, two-sided tape separates with backlight, causes backlight damaged, can not be recycled, reduce maintenance rate.
The content of the invention
The invention provides a kind of device for being used to simulate two-sided tape cohesive force and cohesive force to determine method, to determine
For the cohesive force for the two-sided tape both sides for adhering to display panel and backlight, the service life of display module is improved, improves dimension
Repair efficiency.
To reach above-mentioned purpose, the present invention provides following technical scheme：
The invention provides a kind of device for being used to simulate two-sided tape cohesive force, including：
Adjustable first adsorption plate of absorption affinity；
Adjustable second adsorption plate of absorption affinity；
Adsorbed layer between first adsorption plate and second adsorption plate.
Device provided by the present invention for simulating two-sided tape cohesive force, is inhaled by the first adsorption plate of setting and second
Attached plate and adsorbed layer, display panel, backlight and two-sided tape in simulative display module can be distinguished, pass through progress
Peel test and reliability experiment, obtain the first bonding force and two-sided tape and backlight between two-sided tape and display panel
Between the second cohesive force, the first cohesive force and the second cohesive force are respectively equal to：In peel test, keep the first adsorption plate with
Adsorbed layer separation and the second adsorption plate does not separate with adsorbed layer, and in reliability experiment, the first adsorption plate of holding and by
When adsorption layer, the second adsorption plate and adsorbed layer do not separate, the first adsorption plate and the second adsorption plate are respectively applied to be adsorbed
Power on layer.Display panel and backlight are not fit together first, and first passed through for simulating two-sided tape cohesive force
Device carries out simulation test, obtains the cohesive force of two-sided tape both sides, and display panel and backlight are carried out further according to obtained result
The fitting assembling in source.It can so avoid, because the cohesive force size of the two-sided tape both sides of selection is unreasonable, causing peeling off
In experiment, two-sided tape and display panel together, and with the generation of backlight segregation phenomenon, can also avoid what is fitted together
When display panel and backlight work under later stage hot and humid environment, the generation of display panel and backlight segregation phenomenon.
Therefore provided by the present invention for simulating the device of two-sided tape cohesive force, it may be determined that for adhering to display panel
With the cohesive force of the two-sided tape both sides of backlight, the service life of display module is improved, improves maintenance efficiency.
In some optional embodiments, metallic is filled with the adsorbed layer；
First adsorption plate includes：First power supply unit, the output current of first power supply unit is adjustable, the first gold medal
Category portion, the first magnet coil being wrapped in first metal portion, the both ends of first magnet coil connect described respectively
The first electrode and second electrode of first power supply unit；The first metal portion with producing magnetic after energization occurs the of electromagnetic induction
Two metal portions, second metal portion are used to the adsorbed layer being adsorbed in it towards the one side of the adsorbed layer；
Second adsorption plate includes：Second power supply unit, the output current of second power supply unit is adjustable, the 3rd gold medal
Category portion, the second magnet coil being wrapped in the 3rd metal portion, the both ends of second magnet coil connect described respectively
The first electrode and second electrode of second power supply unit；The 3rd metal portion with producing magnetic after energization occurs the of electromagnetic induction
Four metal portions, the 4th metal portion are used to the adsorbed layer being adsorbed in the 4th metal portion towards the adsorbed layer
One side.It is powered by the first magnet coil and the second magnet coil so that the first metal portion and the 3rd metal portion produce into electricity
Because electromagnetic induction band is magnetic, the second metal portion and the 4th metal portion can adsorb quilt for magnetic, the second metal portion and the 4th metal portion
Metallic particles in adsorption layer, the size of electric current, Ke Yigai are passed through in the first magnet coil and the second magnet coil by changing
The absorption affinity become between the absorption affinity size between the second metal portion and adsorbed layer and the 4th metal portion and adsorbed layer is big
It is small.
In some optional embodiments, the adsorbed layer is big towards the roughness of the one side of the 4th metal portion
Roughness in the adsorbed layer towards the one side of second metal portion.Roughness is different so that adsorbed layer and the 4th
Absorption affinity between metal portion and the second metal portion is different.
In some optional embodiments, the 4th metal portion is the border structure of middle part hollow out.
In some optional embodiments, area that every side frame of the 4th metal portion contacts with the adsorbed floor
The length in domain is smaller than the length of the frame of the respective side of the display panel to be bonded 0.1 millimeter~and 0.4 millimeter.
In some optional embodiments, the temperature of the reliability experiment is more than or equal to 60 degrees Celsius and is less than or equal to
90 degrees Celsius, the humidity of the reliability experiment is more than or equal to 90%.
In some optional embodiments, the above-mentioned device for being used to simulate two-sided adhesive type cohesive force measuring, in addition to：
Arm, the first separating arm and the second separating arm are prized, wherein the sled arm, first separating arm and described second
Separating arm is used for first adsorption plate, the adsorbed layer and described the to being attached together in the peel test
Two adsorption plates apply separating force.It is easy to peel test.
Present invention also offers a kind of cohesive force of the device based on for simulating two-sided adhesive type cohesive force measuring to determine method, described
Device includes：Adjustable first adsorption plate of absorption affinity, adjustable second adsorption plate of absorption affinity, positioned at first adsorption plate and institute
State the adsorbed layer between the second adsorption plate；
The cohesive force determines that method includes：Tested by peel test and reliability, obtain the two-sided tape and institute
State the second cohesive force between the first bonding force and the two-sided tape and the backlight between display panel, described first
Cohesive force and second cohesive force are respectively equal to：First adsorption plate is kept to be adsorbed with described in the peel test
Layer separates and second adsorption plate does not separate with the adsorbed layer, and keeps described first to inhale in reliability experiment
When the attached plate and adsorbed layer, the second adsorption plate and adsorbed layer do not separate, first adsorption plate and institute
State the power that the second adsorption plate is respectively applied on the adsorbed layer.
In some optional embodiments, step is tested by peel test and reliability, obtains the two-sided tape
The second cohesive force between the first bonding force and the two-sided tape and the backlight between the display panel is specific
Including：
First adsorption plate and second adsorption plate adsorb adsorbed layer respectively；
To between first adsorption plate and the adsorbed layer and second adsorption plate and the adsorbed layer it
Between apply setting separating force, the absorption affinity of first adsorption plate and second adsorption plate is adjusted, until the described first absorption
Plate separates with the adsorbed layer and second adsorption plate does not separate with the adsorbed layer, will now first adsorption plate
The power put on the adsorbed layer is recorded as the first absorption affinity, and second adsorption plate is put on the adsorbed layer
Power is recorded as the second absorption affinity；
First adsorption plate adsorbs the adsorbed layer with first absorption affinity, and second adsorption plate is with described the
Two absorption affinities adsorb the adsorbed layer, to first adsorption plate, second adsorption plate and the quilt being attached together
Adsorption layer carries out the reliability experiment, with the first absorption affinity described in same adjustment proportion adjustment and second absorption affinity, directly
Do not separated to first adsorption plate and the adsorbed layer and second adsorption plate and the adsorbed layer, will now institute
State the power that the first adsorption plate is put on the adsorbed layer and be recorded as the 3rd absorption affinity, second adsorption plate puts on described
Power on adsorbed layer is recorded as the 4th absorption affinity, and first cohesive force is equal to the 3rd absorption affinity, and described second bonds
Power is equal to the 4th absorption affinity.
In some optional embodiments, when being filled with metallic in the adsorbed layer；First adsorption plate
Including：First power supply unit, the output current of first power supply unit is adjustable, the first metal portion, is wrapped in first gold medal
The first magnet coil in category portion, the both ends of first magnet coil connect the first electrode of first power supply unit respectively
And second electrode；Second metal portion of electromagnetic induction, second metal occur for the first metal portion with producing magnetic after energization
Portion is used to the adsorbed layer being adsorbed in it towards the one side of the adsorbed layer；Second adsorption plate includes：Second supplies
Electric unit, the output current of second power supply unit is adjustable, the 3rd metal portion, second be wrapped in the 3rd metal portion
Magnet coil, the both ends of second magnet coil connect the first electrode and second electrode of second power supply unit respectively；
4th metal portion of electromagnetic induction occurs for the 3rd metal portion with producing magnetic after energization, and the 4th metal portion is used for by described in
Adsorbed layer be adsorbed in the 4th metal portion towards the adsorbed layer one side when；
Step is tested by peel test and reliability, obtains first between the two-sided tape and the display panel
The second cohesive force between bonding force and the two-sided tape and the backlight specifically includes：
Determine absorption affinity in unit area suffered by the adsorbed layer towards the second metal portion one side and described the
The relation for the electric current being passed through in one metal portion；
Determine absorption affinity in unit area suffered by the adsorbed layer towards the 4th metal portion one side and described the
The current relationship being passed through in three metal portions；
First power supply unit and second power supply unit are respectively to first metal portion and second metal
Portion exports the first setting electric current, and it is first prestored to adjust second metal portion and the contact area of the adsorbed layer
Area is set, the contact area for adjusting the 4th metal portion and the adsorbed layer is the second setting area prestored；
The peel test is carried out, between second metal portion and the adsorbed layer and the 4th metal portion
Apply setting separating force between the adsorbed layer, adjust the output current of first power supply unit and second power supply
The output current of unit, until second metal portion separates and the 4th metal portion is inhaled with described with the adsorbed layer
Attached layer does not separate, and the output current of first power supply unit now is recorded as into the first output current, second power supply is single
The output current of member now is recorded as the second output current；
First power supply unit is controlled to be exported with the first output current, second power supply unit is with the second output current
Output, the reliability is carried out to second metal portion, the 4th metal portion and the adsorbed layer being attached together
Experiment, with the output electricity of the output current of the first power supply unit described in same adjustment proportion adjustment and second power supply unit
Stream, until second metal portion and the adsorbed layer and the 4th metal portion and the adsorbed layer do not separate,
The output current of now first power supply unit is recorded as the 3rd output current, the output current of second power supply unit
It is recorded as the 4th output current；
According to the 3rd output current, one side institute of the adsorbed layer towards second metal portion in unit area
The absorption affinity received and the relation for the electric current being passed through in first metal portion, and the first setting area obtain described first
Cohesive force；
According to the 4th output current, one side institute of the adsorbed layer towards the 3rd metal portion in unit area
The absorption affinity received and the current relationship being passed through in the 4th metal portion, and the second setting area obtain described second and glued
Tie power.
Brief description of the drawings
Fig. 1 is a kind of structural representation provided in an embodiment of the present invention for being used to simulate the device of two-sided adhesive type cohesive force measuring；
Fig. 2 be it is provided in an embodiment of the present invention be used to simulating the device of two-sided adhesive type cohesive force measuring tested one kind in should
Use schematic diagram；
Fig. 3 is a kind of flow chart that cohesive force provided in an embodiment of the present invention determines method；
Fig. 4 is another flow chart that cohesive force provided in an embodiment of the present invention determines method.
Reference：
1- the first adsorption plate the first metal portions of 11-
12- the second metal portion the first magnet coils of 13-
The metal portions of the second adsorption plates of 2- 21- the 3rd
The magnet coils of the 4th metal portion 23- of 22- the 3rd
3- is adsorbed layer 31- metallics
4- prizes arm the first separating arms of 5-
The separating arms of 6- second
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, rather than whole embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other under the premise of creative work is not made
Embodiment, belong to the scope of patent protection of the present invention.
As shown in figure 1, the invention provides a kind of device for being used to simulate two-sided tape cohesive force, including：Absorption affinity can
The first adsorption plate 1 adjusted；Adjustable second adsorption plate 2 of absorption affinity；Quilt between the first adsorption plate 1 and the second adsorption plate 2
Adsorption layer 3.
Device provided by the present invention for simulating two-sided tape cohesive force, passes through the first adsorption plate 1 and second of setting
Adsorption plate 2 and adsorbed layer 3, display panel, backlight and two-sided tape in simulative display module can be distinguished, passed through
Peel test and reliability experiment are carried out, constantly adjusts the absorption affinity between the first adsorption plate and adsorbed layer and the second absorption
Absorption affinity between plate and adsorbed layer, until obtaining the first bonding force and the two-sided tape between two-sided tape and display panel
The second cohesive force between backlight, the first cohesive force and the second cohesive force are respectively equal to：In peel test, first is kept
Adsorption plate 1 separates with adsorbed layer 3 and the second adsorption plate 2 does not separate with adsorbed layer 3, and in reliability experiment, keeps the
When one adsorption plate 1 and adsorbed layer 3, the second adsorption plate 2 and adsorbed layer 3 do not separate, the first adsorption plate 1 and the second adsorption plate
2 are respectively applied to the power on adsorbed layer 3.Display panel and backlight are not fit together first, and first passed through for mould
The device for intending two-sided tape viscous force carries out simulation test, obtains the cohesive force of two-sided tape both sides, enters further according to obtained result
The fitting assembling of row display panel and backlight.Can so avoid due to the two-sided tape both sides of selection cohesive force size not
Rationally, cause in peel test, two-sided tape and display panel together, and with the generation of backlight segregation phenomenon, can also
When avoiding the display panel that fits together and the backlight from being worked under later stage hot and humid environment, display panel and backlight point
From the generation of phenomenon.
Therefore provided by the present invention for simulating the device of two-sided tape cohesive force, it may be determined that for adhering to display panel
With the cohesive force of the two-sided tape both sides of backlight, the service life of display module is improved, improves maintenance efficiency.
Because two-sided tape is in addition to display panel and backlight are bonded together, two-sided tape also has backlight
In other modules fix effect, therefore dismounting when, in order to not damage backlight, pollution displaying panel is not, it is necessary to double faced adhesive tape
Band separates together with backlight with display panel, if two-sided tape separates with backlight, and is bonded with display panel, follow-up
It is cumbersome during removal double faced adhesive tape, and easily because removing method is improper, damage display panel.
The concrete structure of above-mentioned first adsorption plate 1, the second adsorption plate 2 and adsorbed layer 3 can have a variety of, the first absorption
Can be that physical absorption can also be chemisorbed between plate 1 and adsorbed layer 3, between the second adsorption plate 2 and adsorbed layer 3.
In a kind of optional embodiment provided by the invention, metallic 31 is filled with adsorbed layer 3；
First adsorption plate 1 includes：First power supply unit (not shown), the output current of the first power supply unit is adjustable,
First metal portion 11, the first magnet coil 13 being wrapped in the first metal portion 11, the both ends of the first magnet coil 13 connect respectively
Connect the first electrode and second electrode of the first power supply unit；Electromagnetic induction occurs for the first metal portion 11 with producing magnetic after energization
The second metal portion 12, the second metal portion 12 is used to adsorbed layer 3 being adsorbed in it towards the one side of adsorbed layer 3；
Second adsorption plate 2 includes：Second power supply unit (not shown), the output current of the second power supply unit is adjustable,
3rd metal portion 21, the second magnet coil 23 being wrapped in the 3rd metal portion 21, the both ends of the second magnet coil 23 connect respectively
Connect the first electrode and second electrode of the second power supply unit；Electromagnetic induction occurs for the 3rd metal portion 21 with producing magnetic after energization
The 4th metal portion 22, the 4th metal portion 22 is used to adsorbed layer 3 being adsorbed in the 4th metal portion 22 towards the one of adsorbed layer 3
Face.It is powered by the first magnet coil 13 and the second magnet coil 23 so that the first metal portion 11 and the 3rd metal portion 21 are produced
Into electromagnetism, the second metal portion 12 and the 4th metal portion 22 are because electromagnetic induction band is magnetic, the second metal portion 12 and the 4th metal
The metallic particles in adsorbed layer 3 can be adsorbed in portion 22, be passed through by changing in the first magnet coil 13 and the second magnet coil 23
The size of electric current, thus it is possible to vary absorption affinity size between the second metal portion 12 and adsorbed layer 3 and the 4th metal portion 22 with
Absorption affinity size between adsorbed layer 3.It is to contact suction between second metal portion 12 and the 4th metal portion 22 and adsorbed layer 3
It is attached, contacted between the size of the absorption affinity between the second metal portion 12 and adsorbed layer 3 and the second metal portion 12 and adsorbed layer 3
The size of area is related, and the size of the absorption affinity between the 4th metal portion 22 and adsorbed layer 3 is with the 4th metal portion 22 with being inhaled
The size of contact area between attached layer 3 is related, therefore test device provided by the invention can select as needed before testing
Contact area.
Generally when selecting contact area, the contact area between the second metal portion 12 and adsorbed layer 3 has several numerical value,
These numerical value are empirical value or experiment value, and the contact area between the 4th metal portion 22 and adsorbed layer 3 can be according to reality
The length setting of the frame of border product, because the width of two-sided tape is sometimes fixation, therefore can only adjust length, and the usual 4th
Metal portion 22 and the length of the adsorbed contact position of layer 3 are smaller than the length of the frame of corresponding position actual product by 0.1 millimeter~0.4
Millimeter.The width of certain two-sided tape is also related to the width of the frame of actual product, and the width of two-sided tape is no more than production
The width of the frame of product, accordingly, the width of the 4th metal portion and adsorbed layer contact position is than corresponding position actual product
The width of frame can also it is small 0.1 millimeter~0.4 millimeter.
Device provided by the present invention for simulating two-sided tape cohesive force, in test, first determine quilt in unit area
Absorption affinity and the relation for the electric current being passed through in the first metal portion 11 suffered by adsorption layer 3 towards the one side of the second metal portion 12；
Determine to be adsorbed the absorption affinity and the 3rd metal portion 21 suffered by layer 3 towards the one side of the 4th metal portion 22 in unit area
The current relationship being inside passed through；
Specifically, as shown in Fig. 2 to electric current is passed through in first coil, the first metal portion 11 is passed through electric current in first coil
Under the influence of produce magnetic field, the second metal portion 12 has magnetic, attracts adsorbed layer 3, now with sled arm 4 by the second metal portion 12
Separated with adsorbed layer 3, it is assumed that now the absorption affinity size between the second metal portion 12 and adsorbed layer 3 is F3, the second metal
Contact area between portion 12 and adsorbed layer 3 is S1, then be adsorbed in unit area between layer 3 and second metal portion 12 by
Power f3 (I)=F3/S1, stress f4 (the I)=F4/S2 similarly, in unit area being adsorbed between the metal portion 22 of layer 3 and the 4th,
Absorption affinity sizes of the wherein F4 between the 4th metal portion 22 and adsorbed layer 3, S2 be the 4th metal portion 22 and adsorbed layer 3 it
Between contact area.
First power supply unit and the second power supply unit are set to the first metal portion 11 and the second metal portion 12 output first respectively
Determine electric current, the contact area of the second metal portion of adjustment 12 and adsorbed layer 3 is the first setting area B prestored, adjustment the
Four metal portions 22 and the contact area of adsorbed layer 3 are the second setting area A prestored；
Peel test is carried out, between the second metal portion 12 and adsorbed layer 3 and the 4th metal portion 22 and adsorbed layer 3
Between apply setting separating force, the output current of the first power supply unit and the output current of the second power supply unit are adjusted, until the
Two metal portions 12 separate with adsorbed layer 3 and the 4th metal portion 22 does not separate with adsorbed layer 3, by the first power supply unit now
Output current is recorded as the first output current, and the output current of the second power supply unit now is recorded as the second output current；
The first power supply unit is controlled to be exported with the first output current, the second power supply unit is exported with the second output current, right
The second metal portion 12, the 4th metal portion 22 and the adsorbed layer 3 being attached together carry out reliability experiment, with same adjustment ratio
The output current of the first power supply unit and the output current of the second power supply unit are adjusted, until the second metal portion 12 and adsorbed layer
3 and the 4th metal portion 22 and adsorbed layer 3 do not separate, it is defeated that the output current of now the first power supply unit is recorded as into the 3rd
Go out electric current, the output current of the second power supply unit is recorded as the 4th output current；
According to the 3rd output current, the absorption suffered by layer 3 towards the one side of the second metal portion 12 is adsorbed in unit area
Power and the relation for the electric current being passed through in the first metal portion 11, and the first setting area B obtain the first cohesive force；
According to the 4th output current, the absorption suffered by layer 3 towards the one side of the 3rd metal portion 21 is adsorbed in unit area
Power and the current relationship being passed through in the 4th metal portion 22, and the second setting area A obtain the second cohesive force.Subsequently, producing
During product, two-sided tape can be designed according to the first obtained cohesive force and the second cohesive force.
Actual product in production, bonding force intensity between display panel and two-sided tape and backlight and two-sided tape
Between bonding force intensity it is different, in order to be mutually matched with actual product, be adsorbed one side of the layer 3 towards the 4th metal portion 22
Roughness is more than adsorbed roughness of the layer 3 towards the one side of the second metal portion 12.Roughness is different so that adsorbed layer 3 with
Absorption affinity between 4th metal portion 22 and the second metal portion 12 is different.
The concrete shape of the above-mentioned metal portion 22 of second metal portion 12 and the 4th, it can be set according to being actually needed, optionally,
4th metal portion 22 is the border structure of middle part hollow out.
Optionally, the length in the region that the 4th metal portion 22 contacts per side frame with adsorbed layer 3 is than display to be bonded
The length of the frame of the respective side of panel is small 0.1 millimeter~and 0.4 millimeter.
The temperature of above-mentioned reliability experiment is more than or equal to 60 degrees Celsius and less than or equal to 90 degrees Celsius, and reliability is tested wet
Degree is more than or equal to 90%.Optionally, the temperature of reliability experiment can be 60 degrees Celsius, 70 degrees Celsius, 80 degrees Celsius, it is 90 Celsius
Degree etc., is just no longer repeated one by one here.
For the ease of doing peel test, the above-mentioned device for being used to simulate two-sided adhesive type cohesive force measuring, in addition to：
Arm 4, the first separating arm 5 and the second separating arm 6 are prized, wherein sled arm 4, the first separating arm 5 and the second separating arm 6
For applying separating force to the first adsorption plate 1, the adsorbed adsorption plate 2 of layer 3 and second being attached together in peel test.
As shown in figure 1, the direction for the power that the first separating arm 5 is acted on the second adsorption plate 2, as shown in figure F1, the second separating arm 6 acts on
The direction of power on the first adsorption plate 1 is as shown in figure F2.
Present invention also offers a kind of cohesive force of the device based on for simulating two-sided adhesive type cohesive force measuring to determine method, described
Device includes：Adjustable first adsorption plate of absorption affinity, adjustable second adsorption plate of absorption affinity, positioned at first adsorption plate and institute
State the adsorbed layer between the second adsorption plate；
The cohesive force determines that method includes：Tested by peel test and reliability, obtain two-sided tape and display surface
The second cohesive force between the first bonding force and two-sided tape and backlight between plate, the first cohesive force and the second cohesive force point
It is not equal to：Keep that the first adsorption plate separates with adsorbed layer in peel test and the second adsorption plate does not separate with adsorbed layer,
And when keeping the first adsorption plate and adsorbed layer, the second adsorption plate and adsorbed layer not to separate in reliability experiment, first
Adsorption plate and the second adsorption plate are respectively applied to the power on adsorbed layer.
Optionally, step is tested by peel test and reliability, obtains first between two-sided tape and display panel
The second cohesive force between bonding force and two-sided tape and backlight specifically includes：
First adsorption plate and the second adsorption plate adsorb adsorbed layer respectively；
To applying setting separating force between the first adsorption plate and adsorbed layer and between the second adsorption plate and adsorbed layer,
Adjust the absorption affinity of the first adsorption plate and the second adsorption plate, until the first adsorption plate separated with adsorbed layer and the second adsorption plate and
Adsorbed layer is not separated, and the power that now the first adsorption plate is put on adsorbed layer is recorded as into the first absorption affinity, the second absorption
The power that plate is put on adsorbed layer is recorded as the second absorption affinity；
First adsorption plate adsorbs adsorbed layer with the first absorption affinity, and the second adsorption plate is adsorbed with the absorption of the second absorption affinity
Layer, reliability experiment is carried out to the first adsorption plate, the second adsorption plate and adsorbed layer being attached together, with same adjustment ratio
The first absorption affinity and the second absorption affinity are adjusted, until the first adsorption plate and adsorbed layer and the second adsorption plate and adsorbed layer are not
Separation, the power that now the first adsorption plate is put on adsorbed layer is recorded as the 3rd absorption affinity, the second adsorption plate put on by
Power on adsorption layer is recorded as the 4th absorption affinity, and the first cohesive force is equal to the 3rd absorption affinity, and the second cohesive force is equal to the 4th absorption
Power.
In a kind of optional embodiment, as shown in figure 3, being filled with metallic when adsorbed layer is interior；First adsorption plate
Including：First power supply unit, the output current of the first power supply unit is adjustable, the first metal portion, is wrapped in the first metal portion
First magnet coil, the both ends of the first magnet coil connect the first electrode and second electrode of the first power supply unit respectively；With leading to
Second metal portion of electromagnetic induction occurs for the first metal portion that magnetic is produced after electricity, and the second metal portion is used to adsorb on adsorbed layer
One side in it towards adsorbed layer；Second adsorption plate includes：Second power supply unit, the output current of the second power supply unit can
Adjust, the 3rd metal portion, the second magnet coil being wrapped in the 3rd metal portion, the both ends of the second magnet coil connect second respectively
The first electrode and second electrode of power supply unit；4th gold medal of electromagnetic induction occurs for the 3rd metal portion with producing magnetic after energization
Category portion, when the 4th metal portion is used to adsorbed layer being adsorbed in the 4th metal portion towards the one side for being adsorbed layer；
Step is tested by peel test and reliability, obtain the first bonding force between two-sided tape and display panel and
The second cohesive force between two-sided tape and backlight specifically includes：
Step S301：Determine to be adsorbed layer in unit area towards the absorption affinity suffered by the second metal portion one side and the first gold medal
The relation for the electric current being passed through in category portion；
Step S302：Determine to be adsorbed layer in unit area towards the absorption affinity suffered by the 4th metal portion one side and the 3rd gold medal
The current relationship being passed through in category portion；
Step S303：First power supply unit and the second power supply unit are respectively to the first metal portion and the output of the second metal portion the
One setting electric current, the contact area of adjustment the second metal portion and adsorbed layer are the first setting area prestored, adjustment the
Four metal portions and the contact area of adsorbed layer are the second setting area prestored；
Step S304：Peel test is carried out, between the second metal portion and adsorbed layer and the 4th metal portion and being inhaled
Apply setting separating force between attached layer, adjust the output current of the first power supply unit and the output current of the second power supply unit, directly
Separated to the second metal portion with adsorbed layer and the 4th metal portion does not separate with adsorbed layer, by the first power supply unit now defeated
Go out electric current and be recorded as the first output current, the output current of the second power supply unit now is recorded as the second output current；
Step S305：The first power supply unit is controlled to be exported with the first output current, the second power supply unit is with the second output electricity
Stream output, reliability experiment is carried out to the second metal portion, the 4th metal portion and adsorbed layer being attached together, with same adjustment
The output current of the power supply unit of proportion adjustment first and the output current of the second power supply unit, up to the second metal portion and it is adsorbed
Layer and the 4th metal portion and adsorbed layer are not separated, and the output current of now the first power supply unit is recorded as into the 3rd output
Electric current, the output current of the second power supply unit are recorded as the 4th output current；
Step S306：According to the 3rd output current I3, one side institute of the layer towards the second metal portion is adsorbed in unit area
The absorption affinity received and the relation for the electric current being passed through in the first metal portion, and the first setting area obtain the first cohesive force Fn (I3)
=f3 (I3) * B；
Step S307：According to the 4th output current I4, one side institute of the layer towards the 3rd metal portion is adsorbed in unit area
The absorption affinity received and the current relationship being passed through in the 4th metal portion, and the second setting area obtain the second cohesive force Fn (I4)=
f4(I4)*A。
The specific deterministic process of above-mentioned test process is as shown in figure 4, first such as step S401：According to the frame of display module
A values are determined, then determine B values, corresponding step when step (step S4021 or 4022 or step S4023) is performed according to B values, entered
Row peel test, perform step S403；Perform step S404：Whether adsorbed layer separates with the first adsorption plate, if not separating
Perform step S409：The output current of the first power supply unit and the second power supply unit is adjusted, then carries out peel test, repeat step
S404 and step S409, until adsorbed layer is separated with the first adsorption plate and do not separated with the second adsorption plate；If separation, performs step
Rapid S405：Carry out reliability experiment；Perform step S406：Whether adsorbed layer separates with the first adsorption plate, the second adsorption plate,
If separation, perform step S407：With the output current of the power supply unit of same adjustment proportion adjustment first and the second power supply unit,
Until adsorbed layer does not separate with the first adsorption plate and the second adsorption plate；If not separating, step S408 is performed：Record is now
Absorption affinity between first adsorption plate and adsorbed layer, the absorption affinity between the second adsorption plate and adsorbed layer, to determine first
Cohesive force and the second cohesive force.
Obviously, those skilled in the art can carry out the essence of various changes and modification without departing from the present invention to the present invention
God and scope.So, if these modifications and variations of the present invention belong to the scope of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to comprising including these changes and modification.
Claims (10)
- A kind of 1. device for being used to simulate two-sided tape cohesive force, it is characterised in that including：Adjustable first adsorption plate of absorption affinity；Adjustable second adsorption plate of absorption affinity；Adsorbed layer between first adsorption plate and second adsorption plate.
- 2. the device according to claim 1 for being used to simulate two-sided tape cohesive force, it is characterised in that the adsorbed layer It is interior to be filled with metallic；First adsorption plate includes：First power supply unit, the output current of first power supply unit is adjustable, the first metal Portion, the first magnet coil being wrapped in first metal portion, the both ends of first magnet coil connect described respectively The first electrode and second electrode of one power supply unit；The first metal portion with producing magnetic after energization occurs the second of electromagnetic induction Metal portion, second metal portion are used to the adsorbed layer being adsorbed in it towards the one side of the adsorbed layer；Second adsorption plate includes：Second power supply unit, the output current of second power supply unit is adjustable, the 3rd metal Portion, the second magnet coil being wrapped in the 3rd metal portion, the both ends of second magnet coil connect described respectively The first electrode and second electrode of two power supply units；The 3rd metal portion with producing magnetic after energization occurs the 4th of electromagnetic induction Metal portion, the 4th metal portion are used to the adsorbed layer being adsorbed in the 4th metal portion towards the adsorbed layer Simultaneously.
- 3. the device according to claim 2 for being used to simulate two-sided tape cohesive force, it is characterised in that the adsorbed layer Towards the 4th metal portion roughness be more than the adsorbed layer towards second metal portion while it is thick Rugosity.
- 4. the device according to claim 2 for being used to simulate two-sided tape cohesive force, it is characterised in that the 4th metal Portion is the border structure of middle part hollow out.
- 5. the device according to claim 4 for being used to simulate two-sided tape cohesive force, it is characterised in that the 4th metal Side of the length in the region that every side frame in portion contacts with the adsorbed layer than the respective side of the display panel to be bonded The length of frame is small 0.1 millimeter~and 0.4 millimeter.
- 6. the device for being used to simulate two-sided tape cohesive force according to any one of Claims 1 to 5, it is characterised in that institute The temperature for stating reliability experiment is more than or equal to 60 degrees Celsius and less than or equal to 90 degrees Celsius, and the humidity of the reliability experiment is more than Equal to 90%.
- 7. the device according to claim 6 for being used to simulate two-sided tape cohesive force, it is characterised in that also include：Arm, the first separating arm and the second separating arm are prized, wherein the sled arm, first separating arm and second separation Arm is used for first adsorption plate, the adsorbed layer and second suction to being attached together in the peel test Attached plate applies separating force.
- 8. a kind of cohesive force based on the device as claimed in claim 1 for being used to simulate two-sided tape cohesive force determines method, The both sides of the two-sided tape are respectively used to bond display panel and backlight, it is characterised in that the cohesive force determines method Including：Tested by peel test and reliability, obtain the first bonding force between the two-sided tape and the display panel The second cohesive force between the two-sided tape and the backlight, first cohesive force and second cohesive force difference It is equal to：First adsorption plate is kept to be separated and second adsorption plate and institute with the adsorbed layer in the peel test State adsorbed layer not separate, and keep in reliability experiment first adsorption plate and the adsorbed layer, described the When two adsorption plates and the adsorbed layer do not separate, first adsorption plate and second adsorption plate are respectively applied to described Power on adsorbed layer.
- 9. cohesive force according to claim 8 determines method, it is characterised in that step is real by peel test and reliability Test, obtain the first bonding force between the two-sided tape and the display panel and the two-sided tape and the backlight it Between the second cohesive force specifically include：First adsorption plate and second adsorption plate adsorb adsorbed layer respectively；To being applied between first adsorption plate and the adsorbed layer and between second adsorption plate and the adsorbed layer Add and determine separating force, adjust the absorption affinity of first adsorption plate and second adsorption plate, until first adsorption plate with The adsorbed layer separates and second adsorption plate does not separate with the adsorbed layer, now first adsorption plate will apply The first absorption affinity, the power note that second adsorption plate is put on the adsorbed layer are recorded as in the power on the adsorbed layer Record as the second absorption affinity；First adsorption plate adsorbs the adsorbed layer with first absorption affinity, and second adsorption plate is inhaled with described second Attached power adsorbs the adsorbed layer, to first adsorption plate, second adsorption plate and described adsorbed being attached together Layer carries out the reliability experiment, with the first absorption affinity described in same adjustment proportion adjustment and second absorption affinity, until institute State the first adsorption plate and the adsorbed layer and second adsorption plate and the adsorbed layer does not separate, will now described The power that one adsorption plate is put on the adsorbed layer is recorded as the 3rd absorption affinity, and second adsorption plate puts on described inhaled Power on attached layer is recorded as the 4th absorption affinity, and first cohesive force is equal to the 3rd absorption affinity, second cohesive force etc. In the 4th absorption affinity.
- 10. cohesive force according to claim 9 determines method, it is characterised in that golden when being filled with the adsorbed layer Belong to particle；First adsorption plate includes：First power supply unit, the output current of first power supply unit is adjustable, the first gold medal Category portion, the first magnet coil being wrapped in first metal portion, the both ends of first magnet coil connect described respectively The first electrode and second electrode of first power supply unit；The first metal portion with producing magnetic after energization occurs the of electromagnetic induction Two metal portions, second metal portion are used to the adsorbed layer being adsorbed in it towards the one side of the adsorbed layer；It is described Second adsorption plate includes：Second power supply unit, the output current of second power supply unit is adjustable, the 3rd metal portion, is wrapped in The second magnet coil in 3rd metal portion, the both ends of second magnet coil connect second power supply unit respectively First electrode and second electrode；4th metal portion of electromagnetic induction, institute occur for the 3rd metal portion with producing magnetic after energization State the 4th metal portion be used for by the adsorbed layer be adsorbed in the 4th metal portion towards the adsorbed layer one side when；Step is tested by peel test and reliability, is obtained first Nian Jie between the two-sided tape and the display panel The second cohesive force between power and the two-sided tape and the backlight specifically includes：Determine the absorption affinity in unit area suffered by the adsorbed layer towards the second metal portion one side and first gold medal The relation for the electric current being passed through in category portion；Determine the absorption affinity in unit area suffered by the adsorbed layer towards the 4th metal portion one side and the 3rd gold medal The current relationship being passed through in category portion；First power supply unit and second power supply unit are defeated to first metal portion and second metal portion respectively Go out the first setting electric current, the contact area for adjusting second metal portion and the adsorbed layer is the first setting prestored Area, the contact area for adjusting the 4th metal portion and the adsorbed layer is the second setting area prestored；The peel test is carried out, between second metal portion and the adsorbed layer and the 4th metal portion and institute Application sets separating force between stating adsorbed layer, adjusts the output current of first power supply unit and second power supply unit Output current, until second metal portion separates and the 4th metal portion and the adsorbed layer with the adsorbed layer Do not separate, the output current of first power supply unit now be recorded as the first output current, second power supply unit this When output current be recorded as the second output current；First power supply unit is controlled to be exported with the first output current, second power supply unit is defeated with the second output current Go out, the reliability examination is carried out to second metal portion, the 4th metal portion and the adsorbed layer being attached together Test, with the output current of the first power supply unit described in same adjustment proportion adjustment and the output current of second power supply unit, Until second metal portion and the adsorbed layer and the 4th metal portion and the adsorbed layer do not separate, by this The output current of the power supply units of Shi Suoshu first is recorded as the 3rd output current, the output current record of second power supply unit For the 4th output current；According to the 3rd output current, in unit area suffered by the adsorbed layer towards the one side of second metal portion Absorption affinity and the relation for the electric current being passed through in first metal portion, and the first setting area obtain described first and bonded Power；According to the 4th output current, in unit area suffered by the adsorbed layer towards the one side of the 3rd metal portion Absorption affinity and the current relationship being passed through in the 4th metal portion, and the second setting area obtain described second and bonded Power.
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| CN201710814227.3A CN107490543B (en) | 2017-09-11 | 2017-09-11 | Device for simulating adhesion of double-sided adhesive tape and adhesion determination method |
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| CN1773241A (en) * | 2004-11-11 | 2006-05-17 | 香港理工大学 | Testing box for measuring anti-pulling force of soil nailing mechanical property |
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| CN105334109A (en) * | 2015-11-27 | 2016-02-17 | 中国矿业大学 | Test device for simulating complicated loads based on electromagnetic field, and test method using test device |
| CN105334160A (en) * | 2015-10-14 | 2016-02-17 | 京东方科技集团股份有限公司 | Thin film adhesion testing equipment and thin film adhesion testing method |
| US20160349171A1 (en) * | 2015-05-29 | 2016-12-01 | The Boeing Company | Systems and methods for testing internal bonds |
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| SU974224A2 (en) * | 1981-05-13 | 1982-11-15 | Харьковское Высшее Военное Авиационное Инженерное Училище | Adhesion meter |
| CN1773241A (en) * | 2004-11-11 | 2006-05-17 | 香港理工大学 | Testing box for measuring anti-pulling force of soil nailing mechanical property |
| CN103196827A (en) * | 2013-03-25 | 2013-07-10 | 奥瑞金包装股份有限公司 | Device and method for detecting adhesive force of surface of film-coated iron |
| US20160349171A1 (en) * | 2015-05-29 | 2016-12-01 | The Boeing Company | Systems and methods for testing internal bonds |
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