CN108181741A - A kind of test device and its method of display panel film layer stripping position - Google Patents
A kind of test device and its method of display panel film layer stripping position Download PDFInfo
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- CN108181741A CN108181741A CN201810012460.4A CN201810012460A CN108181741A CN 108181741 A CN108181741 A CN 108181741A CN 201810012460 A CN201810012460 A CN 201810012460A CN 108181741 A CN108181741 A CN 108181741A
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- 238000012360 testing method Methods 0.000 title claims abstract description 96
- 238000000034 method Methods 0.000 title claims abstract description 21
- 239000007788 liquid Substances 0.000 claims abstract description 91
- 230000005611 electricity Effects 0.000 claims abstract description 54
- 238000005259 measurement Methods 0.000 claims abstract description 28
- 238000002347 injection Methods 0.000 claims abstract description 23
- 239000007924 injection Substances 0.000 claims abstract description 23
- 238000012545 processing Methods 0.000 claims abstract description 20
- 239000003463 adsorbent Substances 0.000 claims description 8
- 238000010998 test method Methods 0.000 claims description 8
- 230000004044 response Effects 0.000 claims description 4
- 238000010586 diagram Methods 0.000 description 6
- 238000001179 sorption measurement Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 4
- 230000008901 benefit Effects 0.000 description 3
- 239000004020 conductor Substances 0.000 description 3
- 239000004973 liquid crystal related substance Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 229910052751 metal Inorganic materials 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 239000000565 sealant Substances 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 238000004026 adhesive bonding Methods 0.000 description 2
- 239000003990 capacitor Substances 0.000 description 2
- 238000009413 insulation Methods 0.000 description 2
- QSHDDOUJBYECFT-UHFFFAOYSA-N mercury Chemical compound [Hg] QSHDDOUJBYECFT-UHFFFAOYSA-N 0.000 description 2
- 229910052753 mercury Inorganic materials 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- 229910000906 Bronze Inorganic materials 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000001174 ascending effect Effects 0.000 description 1
- 239000010974 bronze Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- KUNSUQLRTQLHQQ-UHFFFAOYSA-N copper tin Chemical compound [Cu].[Sn] KUNSUQLRTQLHQQ-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004070 electrodeposition Methods 0.000 description 1
- 230000002427 irreversible effect Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Classifications
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- 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
- G02F1/1306—Details
- G02F1/1309—Repairing; Testing
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- Nonlinear Science (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Liquid Crystal (AREA)
Abstract
The embodiment of the invention discloses the test device and its method of a kind of display panel film layer stripping position, which includes multiple measuring electrodes, conduction liquid injection device, capacitance measuring device and the data processing equipment for setting the test trough of display panel to be tested, being arranged on display panel top array arrangement；The position of display panel is corresponding with multiple measuring electrodes of array arrangement, wherein, conduction liquid injection device, for injecting conduction liquid into test trough, the liquid level of conduction liquid is less than the upper surface of display panel；Capacitance measuring device, for after conduction liquid and the power-up of multiple measuring electrodes, measuring the induced electricity capacitance of multiple measuring electrodes；Data processing equipment, for determining the peeling-off position of display panel according to the induced electricity capacitance of multiple measuring electrodes, the embodiment of the present invention can not only reduce the damage to display panel, and can be ensured that measurement accuracy by using the peeling-off position of capacity measurement display panel.
Description
Technical field
The present embodiments relate to display technology fields, and in particular to a kind of test dress of display panel film layer stripping position
It puts and its method.
Background technology
In technical field of liquid crystal display, the leakproofness of display panel influences whether liquid crystal storage and rotation in display panel
Turn, therefore, in order to ensure display effect, therefore, to assure that the leakproofness of display panel is preferable, and in display panel sealant and its
Upper and lower film layer plays a part of completely cutting off liquid crystal and exterior space.
At present, the main reason for display panel leakproofness is caused to fail is that sealant and its upper and lower film layer are peeling-off.And
The peeling-off position of sealant and its upper and lower film layer is mainly confirmed by ink bleed method in the prior art, to test display
The leakproofness of panel.
Through inventor the study found that being confirmed after ink bleed method needs to detach upper and lower base plate by microscope, confirming
Irreversible damage can be caused to display panel in the process, and result can generate difference because analyst's observation is horizontal, because
This, existing display panel film layer peel test method is not only larger to display panel damage, but also measurement accuracy is not also high.
Invention content
In order to solve the above-mentioned technical problem, an embodiment of the present invention provides a kind of tests of display panel film layer stripping position
Devices and methods therefor can not only reduce the damage to display panel, and can be ensured that measurement accuracy.
On one side, an embodiment of the present invention provides a kind of display panel film layer stripping position test device, including with
In setting the test trough of display panel to be tested, be arranged on multiple measuring electrodes, the conduction of array arrangement above display panel
Liquid injection device, capacitance measuring device and data processing equipment；The position of the display panel is multiple with the array arrangement
Measuring electrode is corresponding, wherein,
Conduction liquid injection device, for injecting conduction liquid into the test trough, the liquid level of the conduction liquid is less than described
The upper surface of display panel；
Capacitance measuring device, for after the conduction liquid and the power-up of multiple measuring electrodes, measuring the multiple measurement
The induced electricity capacitance of electrode；
Data processing equipment determines that display panel is peeling-off for the induced electricity capacitance according to the multiple measuring electrode
Position.
Optionally, the data processing equipment is additionally operable to determine display panel according to the induced electricity capacitance that measurement obtains
The film layer of stripping.
Optionally, it further includes：Electrode plate；
The electrode plate is connect by conducting wire with the multiple measuring electrode.
Optionally, it further includes：Supply unit and the current electrode being arranged in the test trough；
The supply unit is connect with the electrode plate and the current electrode, for passing through the current electrode guide
Electro-hydraulic power-up is additionally operable to power up to multiple measuring electrodes by the electrode plate.
Optionally, it further includes：Height measuring device；
The height measuring device is arranged in the test trough, for measuring the conduction liquid being injected into the test trough
Height.
Optionally, it further includes：Adsorbent equipment；
The adsorbent equipment, for the display panel to be fixed on to the bottom end of the test trough.
On the other hand, an embodiment of the present invention provides a kind of test method of display panel film layer stripping position, in application
In the test device for stating display panel film layer stripping position, the method includes：
Conduction liquid is injected into test trough, the liquid level of the conduction liquid is less than the upper surface of display panel；
It is powered up to the conduction liquid and multiple measuring electrodes；
Measure the induced electricity capacitance of the multiple measuring electrode；
The peeling-off position of display panel is determined according to the induced electricity capacitance of the multiple measuring electrode.
Optionally, determine that the peeling-off position of display panel is wrapped according to the induced electricity capacitance of the multiple measuring electrode
It includes：
The position of the measuring electrode of generation inductance capacitance is determined according to the induced electricity capacitance of the multiple measuring electrode；
According to the peeling-off position of the location determination display panel for the measuring electrode for generating inductance capacitance.
Optionally, it further includes：According to the induced electricity capacitance that measurement obtains, the peeling-off film layer of display panel is determined.
Optionally, the induced electricity capacitance obtained according to measurement, determines that the peeling-off film layer of display panel includes：
According to the induced electricity capacitance that measurement obtains, using formulaDetermine that display panel is peeling-off
Film layer；
Wherein, C is to measure obtained induced electricity capacitance；ε0For permittivity of vacuum, S is the response surface of the measuring electrode
Product, d are the distance between upper surface of the measuring electrode and the display panel, ε be the display panel upper surface with
Dielectric constant between the stripping film layer of the display panel, D are the upper surface of the display panel and the display panel
Remove the distance between film layer.
The embodiment of the invention discloses the test device and its method of a kind of display panel film layer stripping position, the device packets
Include for set the test trough of display panel to be tested, be arranged on multiple measuring electrodes of array arrangement above display panel,
Conduction liquid injection device, capacitance measuring device and data processing equipment；The position of display panel and multiple measurements of array arrangement
Electrode is corresponding, wherein, conduction liquid injection device, for injecting conduction liquid into test trough, the liquid level of conduction liquid is less than display
The upper surface of panel；Capacitance measuring device, for after conduction liquid and the power-up of multiple measuring electrodes, measuring multiple measuring electrodes
Induced electricity capacitance；Data processing equipment determines that display panel is shelled for the induced electricity capacitance according to multiple measuring electrodes
From position, for the embodiment of the present invention by using the peeling-off position of capacitance measurement display panel, entire measurement process need not
Human contact can not only reduce the damage to display panel, and can be ensured that measurement accuracy.
Certainly, implement any of the products of the present invention or method it is not absolutely required at the same reach all the above excellent
Point.Other features and advantages of the present invention will illustrate in subsequent specification embodiment, also, partly implement from specification
It becomes apparent in example or is understood by implementing the present invention.The purpose of the embodiment of the present invention and other advantages can pass through
Specifically noted structure is realized and is obtained in specification, claims and attached drawing.
Description of the drawings
Attached drawing is used for providing further understanding technical solution of the embodiment of the present invention, and one of constitution instruction
Point, for explaining the technical solution of the embodiment of the present invention together with embodiments herein, do not form to the embodiment of the present invention
The limitation of technical solution.
Fig. 1 is the structure diagram one for the test device that display panel film layer provided in an embodiment of the present invention removes position；
Fig. 2 is the structure diagram two for the test device that display panel film layer provided in an embodiment of the present invention removes position；
Fig. 3 is the plan view of measuring electrode provided in an embodiment of the present invention；
Fig. 4 is the structure diagram three for the test device that display panel film layer provided in an embodiment of the present invention removes position；
Fig. 5 is the bottom view for the test device that display panel film layer provided in an embodiment of the present invention removes position；
Fig. 6 is the flow chart for the test method that display panel film layer provided in an embodiment of the present invention removes position.
Reference sign：
100：Display panel；
10：Test trough；
11：Injection hole；
12：Adsorption hole；
20：Measuring electrode；
21：Electrode plate；
22：Conducting wire；
30：Conduction liquid injection device；
31：Conduction liquid flow in pipes；
32：Conductive liquid pump；
40：Capacitance measuring device；
50：Data processing equipment；
60：Supply unit；
61：Current electrode；
70：Height measuring device；
81：Adsorb pipeline；
82：Vacsorb pump；
110~140：Step.
Specific embodiment
Purpose, technical scheme and advantage to make the embodiment of the present invention are more clearly understood, below in conjunction with attached drawing pair
The embodiment of the embodiment of the present invention is described in detail.It should be noted that in the absence of conflict, the implementation in the application
Feature in example and embodiment mutually can be combined arbitrarily.
Unless otherwise defined, the embodiment of the present invention discloses the technical term used or scientific terminology should be institute of the present invention
The ordinary meaning that the personage with general technical ability is understood in category field.The " comprising " used in the embodiment of the present invention or " packet
Containing " etc. the element that goes out always before the word of similar word or flase drop cover and appear in the element or object of the word presented hereinafter
And its it is equivalent, and it is not excluded for other elements or object.The similar word such as " connection " or " connected " is not limited to physics
Or mechanical connection, but electrical connection can be included, either directly or indirectly." on ", " under ",
"left", "right" etc. is only used for representing relative position relation, after the absolute position for the object being described changes, the then relative position
Relationship may also correspondingly change.
Embodiment one
Fig. 1 is the structure diagram one for the test device that display panel film layer provided in an embodiment of the present invention removes position,
As shown in Figure 1, the test device of display panel stripping position provided in an embodiment of the present invention includes setting to be tested show
Show the test trough 10 of panel 100, the multiple measuring electrodes 20 for being arranged on 100 top array arrangement of display panel, conduction liquid injection
Device 30, capacitance measuring device 40 and data processing equipment 50, the position of display panel 100 and multiple measurements electricity of array arrangement
Pole 20 is corresponding.
In the present embodiment, conduction liquid injection device 30, for injecting conduction liquid into test trough 10.Capacitance measuring device
40, for after being powered up to conduction liquid and multiple measuring electrodes 20, measuring the induced electricity capacitance of multiple measuring electrodes 20.At data
Device 50 is managed, for determining the peeling-off position of display panel according to the induced electricity capacitance of multiple measuring electrodes 20.
It should be noted that in order to avoid influencing the accuracy of induced electricity capacitance measured, it is arranged in test trough
Display panel 100 needs to cover the insulation gluing of the exposed circuit element on display panel 100.
Optionally, test trough 10 can be closed, and can not also close, can be it is rectangular or can also be other shapes,
The embodiment of the present invention is not limited in any way this, specifically, Fig. 1 be by test trough be closing it is rectangular for illustrate.
Optionally, liquid of the conduction liquid to be capable of conduction, including：Liquid mercury.
In the present embodiment, the liquid level of conduction liquid is less than the upper surface of display panel, it is also necessary to higher than the film of display panel
Layer, specifically, the height of conduction liquid is more than or equal to the height of display panel and the difference of threshold distance, and less than display panel
Highly.
It should be noted that in general the thickness of the upper substrate of display panel is more than 0.25mm, when the height of conduction liquid
More than or equal to display panel height and threshold distance difference when, conduction liquid cover all film layers of display panel contact point.
Optionally, the material of measuring electrode 20 includes metal for conductive material, and the shape of measuring electrode 20 can be circle,
Can also be rectangular, triangle or other shapes, the embodiment of the present invention are not defined the shape of measuring electrode, such as Fig. 1
It is illustrated so that measuring electrode is circle as an example.
Optionally, multiple measuring electrodes 20 are parallel with the bottom of test trough 10.
Optionally, when measuring electrode 20 is disk, a diameter of 1mm of disk.
In the present embodiment, in order to accurately test display panel film layer stripping position, the more of array arrangement are needed
A measuring electrode 20 is corresponding with the position of display panel 100.
Optionally, the quantity of measuring electrode 20 is multiple, and the quantity for testing electrode 20 is related to the size of display panel, this
Inventive embodiments do not limit the quantity of test electrode 20 specifically.
Specifically, when display panel is removed there is no film layer, the induced electricity capacitance of multiple measuring electrodes is 0, when aobvious
Show panel there are during film layer stripping, due to the mobility, electric conductivity and homogeneity of conduction liquid, conduction liquid will be filled in film layer seam
In gap, the conduction liquid being filled in film layer gap will form parallel capacitance plate with multiple measuring electrodes, so as to measure
To the induced electricity capacitance of multiple measuring electrodes.
Optionally, data processing equipment can be microprocessor etc., specifically, data processing equipment measures electricity according to multiple
The induced electricity capacitance of pole determines to generate the position of the test electrode of film layer stripping, according to the position for the test electrode for generating film layer stripping
Put the peeling-off position of determining display panel.
The embodiment of the invention discloses display panel film layer stripping position test device include for setting it is to be tested
Display panel test trough, be arranged on multiple measuring electrodes of array arrangement, conduction liquid injection device, electricity above display panel
Hold measuring device and data processing equipment；The position of display panel is corresponding with multiple measuring electrodes of array arrangement, wherein, it leads
Electro-hydraulic injection device, for injecting conduction liquid into test trough, the liquid level of conduction liquid is less than the upper surface of display panel；Capacitance is surveyed
Device is measured, for after conduction liquid and the power-up of multiple measuring electrodes, measuring the induced electricity capacitance of multiple measuring electrodes；At data
Device is managed, for determining the peeling-off position of display panel according to the induced electricity capacitance of multiple measuring electrodes, the present invention is implemented
Example injects conduction liquid by using conduction liquid injection device to test trough, and when display panel is there are during film layer stripping, conduction liquid is just
It can fill to stripping gap, and capacitor board is formed with multiple measuring electrodes, the sense of multiple measuring electrodes obtained according to measurement
Capacitance is answered to determine the peeling-off position of display panel, entire test process can not only reduce without human contact to aobvious
Show the damage of panel, and can be ensured that measurement accuracy.
Optionally, data processing equipment 50 is additionally operable to determine that display panel is shelled according to the induced electricity capacitance that measurement obtains
From film layer.
Specifically, the induced electricity capacitance that data processing equipment 50 is obtained according to measurement, using formulaDetermine the peeling-off film layer of display panel.
Specifically, C is to measure obtained induced electricity capacitance；ε0For permittivity of vacuum, S is the response surface of measuring electrode
Product, d are the distance between upper surface of measuring electrode and display panel, and ε is the upper surface of display panel and the stripping of display panel
From the dielectric constant between film layer, D is the distance between the upper surface of display panel and the stripping film layer of display panel.
Wherein, D=D1+D2+D3+…；DiFor each thicknesses of layers of display panel.
Wherein, ε=ε1+ε2+ε3+…；εiDielectric constant for each film layer of display panel.
Data processing equipment is according to thicknesses of layers each in display panel and the dielectric constant of each film layer, according to above-mentioned formula,
The peeling-off film layer of display panel is extrapolated using substitution method.
Fig. 2 is the structure diagram two for the test device that display panel film layer provided in an embodiment of the present invention removes position,
Fig. 3 is the plan view of measuring electrode provided in an embodiment of the present invention, as shown in Figures 2 and 3, optionally, in order to reduce wiring
Quantity, the test device of display panel film layer stripping position provided in an embodiment of the present invention further include：Electrode plate 21.
In the present embodiment, electrode plate 21 are connect by conducting wire 22 with multiple measuring electrodes 20.
Specifically, electrode plate 21 is arranged in test trough 10, and the material of electrode plate is conductive material, such as metal etc.,
The embodiment of the present invention is not limited in any way this, and the length of all conducting wires 22 is identical.
As long as the embodiment of the present invention can be achieved with supplying multiple measuring electrodes by the way that electrode plate is set to power up electrode plate
Electricity reduces wiring, simplifies apparatus structure.
Optionally, as shown in Fig. 2, test device provided in an embodiment of the present invention further includes：It supply unit 60 and is arranged on
Current electrode 61 in test trough 10.
Supply unit 60 is connect with electrode plate 21 and current electrode 61, is powered up for passing through current electrode to conduction liquid, also
For being powered up by electrode plate to multiple measuring electrodes.
Optionally, current electrode 61 can be fixed on the side wall of test trough, can also be embedded in the side wall of test trough
On, can be that conduction liquid powers up, the embodiment of the present invention does not limit current electrode specifically as long as can be contacted with conduction liquid
Position, it should be noted that as Fig. 2 be by current electrode setting embedded in test trough side wall on for illustrate.
Optionally, as shown in Fig. 2, conduction liquid injection device 30 provided in an embodiment of the present invention includes：Conduction liquid ascending pipe
Road 31 and conductive liquid pump 32.
Specifically, conduction liquid flow in pipes 31 is connected by the injection hole 11 being arranged in test trough 10 with test trough 10.
Conductive liquid pump 32 injects conduction liquid by conduction liquid flow in pipes 31 to test trough 10.
Optionally, the quantity of the injection hole 11 in test trough 10 is multiple, and injection hole 11 can be arranged on the bottom of test trough
Portion can also be arranged on the side of test trough, can also be arranged on the top of test trough, and the embodiment of the present invention does not limit specifically
The quantity of injection hole 11 and position, the quantity of injection hole 11 is more, the efficiency of the test device of display panel film layer stripping position
It is higher.It should be noted that Fig. 2 is illustrated so that injection hole 11 is arranged on the bottom of test trough 10 as an example.
Fig. 4 is the structure diagram three for the test device that display panel film layer provided in an embodiment of the present invention removes position,
Fig. 5 is the bottom view for the test device that display panel film layer provided in an embodiment of the present invention removes position, as shown in Figure 4 and Figure 5,
Optionally, in order to accurately measure the height of conduction liquid, display panel film layer stripping position provided in an embodiment of the present invention
Test device further includes：Height measuring device 70.
In the present embodiment, height measuring device 70 is arranged in test trough 10, is injected into test trough 10 for measuring
Conduction liquid height.
Optionally, height measuring device includes：Height sensor.
Optionally, the quantity of height measuring device 70 is multiple, and Fig. 5 is illustrated by taking 4 height measuring devices as an example
's.
Optionally, height measuring device 70 can be arranged in measuring flume, can also be arranged on four corners of measuring flume
In, Fig. 5 is illustrated in four corners that height measuring device is arranged on measuring flume.
Optionally, as shown in figure 4, the test device of display panel film layer provided in an embodiment of the present invention stripping position is also wrapped
It includes：Adsorbent equipment.
In the present embodiment, adsorbent equipment, for display panel 100 to be fixed on to the bottom end of test trough 10.
Optionally, adsorbent equipment includes：Pipeline 81 and vacsorb pump 82 are adsorbed, absorption 81 bronze drum of pipeline is arranged on test
The adsorption hole 12 of the bottom end of slot is connected with test trough, and display panel 100 is fixed on by vacsorb pump 82 by adsorbing pipeline 81
The bottom end of test trough 10.
Optionally, the quantity of the adsorption hole 12 in test trough 10 is multiple, and adsorption hole 12 is arranged on the bottom of test trough, this
Inventive embodiments do not limit quantity and the position of adsorption hole 12 specifically, and the quantity of adsorption hole 12 is more, and display panel 100 is fixed
It is more secured.
The work of the test device of display panel film layer stripping position provided in an embodiment of the present invention is further illustrated below
Principle.
Display panel is placed in test trough, display panel is fixed on to the bottom end of test trough 10 by adsorbent equipment,
Conduction liquid injection device injects conduction liquid into test trough, until the height of conduction liquid is more than or equal to the height of display panel
With the difference of threshold distance, and less than the height of display panel, supply unit is respectively by current electrode and electrode plate to conduction
Liquid and measuring electrode power-up, capacitance measuring device measure the inductance capacitance of multiple measuring electrodes, the multiple measurements of data processing equipment
The induced electricity capacitance of electrode determines the peeling-off position of display panel and the peeling-off film layer of display panel.
Embodiment two
Inventive concept based on above-described embodiment, the embodiment of the present invention also provide a kind of display panel film layer stripping position
Test method, one display panel film layer of Application Example are removed in the test device of position, and Fig. 6 is provided in an embodiment of the present invention
The flow chart of the test method of display panel film layer stripping position, as shown in fig. 6, this method specifically includes following steps：
Step 110 injects conduction liquid into test trough.
Optionally, test trough can be closed, and can not also close, can be it is rectangular or can also be other shapes,
Inventive embodiments are not limited in any way this.
Optionally, liquid of the conduction liquid to be capable of conduction, including：Liquid mercury.
In the present embodiment, the liquid level of conduction liquid is less than the upper surface of display panel, it is also necessary to higher than the film of display panel
Layer, specifically, the height of conduction liquid is more than or equal to the height of display panel and the difference of threshold distance, and less than display panel
Highly.
Specifically, before display panel is placed in test trough to be happened at step 110, step can also be happened at
After 110, the embodiment of the present invention does not do this any restriction.
It should be noted that in order to avoid influencing the accuracy of induced electricity capacitance measured, it is arranged in test trough
Display panel needs to cover the insulation gluing of the exposed circuit element on display panel.
Step 120 is powered up to conduction liquid and multiple measuring electrodes.
Optionally, the material of measuring electrode includes metal for conductive material, and the shape of measuring electrode can be circle, also may be used
With rectangular, triangle or other shapes, the embodiment of the present invention are not defined the shape of measuring electrode.
Optionally, when measuring electrode is disk, a diameter of 1mm of disk.
Optionally, the quantity of measuring electrode is multiple, and the quantity for testing electrode is related to the size of display panel, the present invention
Embodiment does not limit the quantity of test electrode specifically.
Step 130, the induced electricity capacitance for measuring multiple measuring electrodes.
Step 140 determines the peeling-off position of display panel according to the induced electricity capacitance of multiple measuring electrodes.
Specifically, step 140 specifically includes：It is determined to generate induced electricity according to the induced electricity capacitance of the multiple measuring electrode
The position of the measuring electrode of appearance；According to the peeling-off position of the location determination display panel for the measuring electrode for generating inductance capacitance
It puts.
The test method of display panel film layer stripping position disclosed by the embodiments of the present invention, is removed using display panel film layer
In the test device of position, including：Conduction liquid is injected into test trough, the liquid level of the conduction liquid is less than the upper table of display panel
Face；It is powered up to the conduction liquid and multiple measuring electrodes；Measure the induced electricity capacitance of the multiple measuring electrode；According to described more
The induced electricity capacitance of a measuring electrode determines the peeling-off position of display panel.The embodiment of the present invention to test trough by injecting
Conduction liquid, when display panel is there are during film layer stripping, conduction liquid will be filled to stripping gap, and with multiple measuring electrode shapes
Into capacitor board, the peeling-off position of display panel is determined according to the induced electricity capacitance of multiple measuring electrodes that measurement obtains, it is whole
A test process can not only reduce the damage to display panel, and can be ensured that measurement accuracy without human contact.
Optionally, the test method of display panel film layer stripping position provided in an embodiment of the present invention further includes：According to survey
The induced electricity capacitance measured determines the peeling-off film layer of display panel.
Optionally, the induced electricity capacitance obtained according to measurement, determines that the peeling-off film layer of display panel includes：
According to the induced electricity capacitance that measurement obtains, using formulaDetermine that display panel is peeling-off
Film layer；
Wherein, C is to measure obtained induced electricity capacitance；ε0For permittivity of vacuum, S is the response surface of the measuring electrode
Product, d are the distance between upper surface of the measuring electrode and the display panel, ε be the display panel upper surface with
Dielectric constant between the stripping film layer of the display panel, D are the upper surface of the display panel and the display panel
Remove the distance between film layer.
Wherein, D=D1+D2+D3+…；DiFor each thicknesses of layers of display panel.
Wherein, ε=ε1+ε2+ε3+…；εiDielectric constant for each film layer of display panel.
Data processing equipment is according to thicknesses of layers each in display panel and the dielectric constant of each film layer, according to above-mentioned formula,
The peeling-off film layer of display panel is extrapolated using substitution method.
There is the following to need to illustrate：
Attached drawing of the embodiment of the present invention pertain only to the present embodiments relate to structure, other structures, which can refer to, usually to be set
Meter.
For clarity, in the attached drawing for describing the embodiment of the present invention, the thickness and size of layer or micro-structure
It is amplified.It is appreciated that ought such as layer, film, region or substrate etc element be referred to as be located at another element "above" or "below"
When, the element can " direct " "above" or "below" another element or there may be intermediary element.
In the absence of conflict, the feature in the embodiment of the present invention, that is, embodiment can be combined with each other new to obtain
Embodiment.
Although the embodiment disclosed by the embodiment of the present invention is as above, only the present invention is real for ease of understanding for the content
The embodiment applied example and used is not limited to the embodiment of the present invention.Skill in any fields of the embodiment of the present invention
Art personnel, can be in the form and details of implementation under the premise of the spirit and scope disclosed by the embodiment of the present invention are not departed from
It is upper to carry out any modification and variation, but the scope of patent protection of the embodiment of the present invention, it still must be with appended claims institute
Subject to the range defined.
Claims (10)
1. a kind of test device of display panel film layer stripping position, which is characterized in that display to be tested is set including being used for
The test trough of panel is arranged on multiple measuring electrodes of array arrangement, conduction liquid injection device, capacitance measurement above display panel
Device and data processing equipment；The position of the display panel is corresponding with multiple measuring electrodes of the array arrangement, wherein,
Conduction liquid injection device, for injecting conduction liquid into the test trough, the liquid level of the conduction liquid is less than the display
The upper surface of panel；
Capacitance measuring device, for after the conduction liquid and the power-up of multiple measuring electrodes, measuring the multiple measuring electrode
Induced electricity capacitance；
Data processing equipment, for determining the peeling-off position of display panel according to the induced electricity capacitance of the multiple measuring electrode
It puts.
2. the apparatus according to claim 1, which is characterized in that the data processing equipment is additionally operable to what is obtained according to measurement
Induced electricity capacitance determines the peeling-off film layer of display panel.
3. the apparatus according to claim 1, which is characterized in that further include：Electrode plate；
The electrode plate is connect by conducting wire with the multiple measuring electrode.
4. device according to claim 3, which is characterized in that further include：It supply unit and is arranged in the test trough
Current electrode；
The supply unit is connect with the electrode plate and the current electrode, for passing through the current electrode to conduction liquid
Power-up, is additionally operable to power up to multiple measuring electrodes by the electrode plate.
5. the apparatus according to claim 1, which is characterized in that further include：Height measuring device；
The height measuring device is arranged in the test trough, for measuring the height for being injected into the conduction liquid in the test trough
Degree.
6. the apparatus according to claim 1, which is characterized in that further include：Adsorbent equipment；
The adsorbent equipment, for the display panel to be fixed on to the bottom end of the test trough.
7. a kind of test method of display panel film layer stripping position, which is characterized in that apply any described in claim 1-6
Display panel film layer stripping position test device in, the method includes：
Conduction liquid is injected into test trough, the liquid level of the conduction liquid is less than the upper surface of display panel；
It is powered up to the conduction liquid and multiple measuring electrodes；
Measure the induced electricity capacitance of the multiple measuring electrode；
The peeling-off position of display panel is determined according to the induced electricity capacitance of the multiple measuring electrode.
8. the method according to the description of claim 7 is characterized in that the induced electricity capacitance according to the multiple measuring electrode determines
The peeling-off position of display panel includes：
The position of the measuring electrode of generation inductance capacitance is determined according to the induced electricity capacitance of the multiple measuring electrode；
According to the peeling-off position of the location determination display panel for the measuring electrode for generating inductance capacitance.
9. it the method according to the description of claim 7 is characterized in that further includes：According to the induced electricity capacitance that measurement obtains, determine
The peeling-off film layer of display panel.
10. according to the method described in claim 9, it is characterized in that, the induced electricity capacitance obtained according to measurement, determines aobvious
Show that the peeling-off film layer of panel includes：
According to the induced electricity capacitance that measurement obtains, using formulaDetermine the peeling-off film of display panel
Layer；
Wherein, C is to measure obtained induced electricity capacitance；ε0For permittivity of vacuum, response areas of the S for the measuring electrode, d
The distance between upper surface for the measuring electrode and the display panel, ε be the display panel upper surface with it is described
Dielectric constant between the stripping film layer of display panel, D are the upper surface of the display panel and the stripping of the display panel
The distance between film layer.
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| CN109739035A (en) * | 2019-03-20 | 2019-05-10 | 深圳市华星光电半导体显示技术有限公司 | Remove the removing detection method of detection system and liquid crystal display panel |
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