CN106680635A - Touch screen test system and touch screen test method - Google Patents
Touch screen test system and touch screen test method Download PDFInfo
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- CN106680635A CN106680635A CN201710002805.3A CN201710002805A CN106680635A CN 106680635 A CN106680635 A CN 106680635A CN 201710002805 A CN201710002805 A CN 201710002805A CN 106680635 A CN106680635 A CN 106680635A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/001—Measuring interference from external sources to, or emission from, the device under test, e.g. EMC, EMI, EMP or ESD testing
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Abstract
The invention belongs to the technical field of display and particularly relates to a touch screen test system and a touch screen test method. The touch screen test system comprises a signal provision unit, a signal integration unit, a static electricity applying unit and a test unit, the signal provision unit is used for providing the single touch screen with required power supply voltage and a driving signal in a working condition; the signal integration unit is used for converting the power supply voltage and the driving signal of the signal provision unit and the converted power supply voltage and the driving signal are applied to the single touch screen; the static electricity applying unit is used for providing the single touch screen with a static electricity trigger signal; the test unit for analyzing the static electricity discharge condition of the single touch screen according to the analysis of the test signal receives the test signal of the single touch screen. According to the touch screen test system and the touch screen test method, an anti-ESD performance test basically in sync with production and for the touch screen in the work condition can be achieved, and the current touch screen product performance is learnt timely.
Description
Technical field
The invention belongs to display technology field, and in particular to a kind of testing touch screen system and testing touch screen method.
Background technology
Touch screen (Touch Panel, abbreviation TP) can provide the user brand-new manipulation experience, take as own duty at present
Become a kind of widely used external input device, the environment which uses is also more and more diversified, this resists to touching screen products
ESD (Electro Static Discharge, static discharge) ability it is also proposed harsh requirement.
Under normal circumstances, anti-ESD test of the manufacturer after touch screen product output, due to also not assembling with display base plate
Machine product is formed together, therefore touch screen test status under normal operating condition can not possibly be provided, anti-ESD now
Test is only capable of the anti-ESD abilities for reflecting one-body touch screen, it is impossible to which it (can be band to obtain touch screen and rear whole machine is combined with display base plate
Any end product of touch screen) anti-ESD abilities；And the client of downstream display floater manufacturer is invited carrying out system test
Have that the cycle is longer, cannot know the situation of current touch screen products performance in time again, it is difficult in time feedback touch screen producing line and
Design and adjusted in time.
It can be seen that, design it is a kind of suitable for production basic synchronization, can to touch screen in working order under anti-ESD performances
The test system tested, becomes at present urgently after exhausted technical problem.
The content of the invention
The technical problem to be solved is for above-mentioned deficiency present in prior art, there is provided a kind of touch screen
Test system and testing touch screen method, it is proposed that a kind of anti-ESD testing schemes of the whole machine of the simulation based on touch screen, at least partly
Solve with production basic synchronization, can to touch screen in working order under the test problem tested of anti-ESD performances.
The technical scheme adopted by solution present invention problem is the testing touch screen system, for one-body touch screen
Whole machine electrostatic discharge simulation test, which includes that signal provides unit, signal integrated unit, electrostatic applying unit and test cell,
Wherein：
The signal provides unit, for the supply voltage needed for providing working condition for the one-body touch screen and driving
Signal；
The signal integrated unit, provides the supply voltage and drive signal of unit, and applies for changing the signal
To the one-body touch screen；
The electrostatic applying unit, for providing electrostatic trigger to the one-body touch screen；
The test cell, receives the test signal of the one-body touch screen, for the analysis according to test signal to institute
The static discharge state for stating one-body touch screen is analyzed.
Preferably, the signal integrated unit includes signal input module, signal conversion module and signal output module,
Wherein：
The signal input module, provides unit with the signal and is detachably connected, and provides single for receiving the signal
Supply voltage and drive signal that unit provides；
The signal conversion module, be connected with the signal input module, and with the signal output module may be selected connect
Connect, the voltage and signal for the signal to be provided unit offer is converted to the voltage swing suitable for the one-body touch screen
With required signal；
The signal output module, is detachably connected with the one-body touch screen, for by supply voltage and drive signal
Export to the one-body touch screen, so that the one-body touch screen is in running order.
Preferably, the signal conversion module includes that voltage and signal adapter, the voltage and signal adapter are used
In supply voltage and drive signal are converted to supply voltage corresponding with the one-body touch screen to be measured and drive signal.
Preferably, the signal integrated unit also includes protection module, the protection module and the signal input mould
Block connects, and protects for providing unit to the external signal.
Preferably, the protection module is antistatic IC.
Preferably, the signal input module includes at least one USB connector, the USB connector for institute
State signal and unit connection is provided.
Preferably, the signal input module also includes signal adapter, and the signal adapter is used to make the letter
Number provide unit Jing described in USB connector provide signal it is mutually compatible with the signal conversion module, in order to signal described in Jing
Match with the one-body touch screen after modular converter conversion.
Preferably, the signal adapter is I2C interface units, and the USB connector is connected with the I2C interface units company
Connect.
Preferably, the signal output module includes the multiple connector with differing needles number, and respectively with it is described
Adapter correspondence connection pricking with needle, the adapter for being connected with the one-body touch screen to be measured, in various pricking with needle
Any one be selectively connected with the signal conversion module.
A kind of testing touch screen method, for the whole machine electrostatic discharge simulation test of one-body touch screen, which includes step：
Supply voltage and drive signal needed for the one-body touch screen working condition is provided；
Conversion supply voltage and drive signal, and apply to the one-body touch screen；
Electrostatic trigger is provided to the one-body touch screen；
The test signal of the one-body touch screen is received, the electrostatic according to the analysis of test signal to the one-body touch screen
Discharge condition is analyzed.
The invention has the beneficial effects as follows：Testing touch screen system and testing touch screen method in the present invention, it is possible to achieve
With production basic synchronization, can to touch screen in working order under anti-ESD performance tests, know current touch screen products in time
The situation of performance, timely feedback touch screen producing line and designs and is adjusted in time, improves product yield and creates preferably Jing
Ji benefit.
Description of the drawings
Fig. 1 is the structural representation of testing touch screen system in the embodiment of the present invention 1；
Fig. 2 is the structural representation of signal integrated unit in Fig. 1；
Topology example figures of the Fig. 3 for Fig. 2；
In reference：
1- signals provide unit；
2- signal integrated units；21- signal input modules；22- signal conversion modules；23- signal output module；
24- protection modules；
3- electrostatic applying units；
4- test cells；
5- one-body touch screens.
Specific embodiment
To make those skilled in the art more fully understand technical scheme, below in conjunction with the accompanying drawings and specific embodiment party
Formula is described in further detail to inventive touch screen test system and testing touch screen method.
The present embodiment provides a kind of testing touch screen system and testing touch screen method, for tactile without including in current factory
Touch the display floater machine product of screen, the electrostatic discharge testing of touch screen can only be reflected one-body touch screen anti-ESD abilities and
The problem of the anti-ESD abilities of whole machine cannot be tested, it is based on working condition of the one-body touch screen come simulated touch screen in whole machine, real
The whole machine electrostatic discharge simulation test of existing one-body touch screen, can touch for judgement according to anti-ESD test results under the whole machine of the simulation
Anti- ESD situation of the screen in whole machine, to reference certain in factory.
As shown in figure 1, a kind of testing touch screen system, for the whole machine electrostatic discharge simulation test of one-body touch screen 5, its
Unit 1, signal integrated unit 2, electrostatic applying unit 3 and test cell 4 are provided including signal, wherein：
Signal provides unit 1, for supply voltage and drive signal needed for providing working condition for one-body touch screen 5；
Signal integrated unit 2, provides the supply voltage and drive signal of unit 1 for conversion signal, and applies to monomer
On touch screen 5；
Electrostatic applying unit 3, for providing electrostatic trigger to one-body touch screen 5；
Test cell 4, receives the test signal of one-body touch screen 5, for according to the analysis of test signal to one-body touch
The static discharge state of screen 5 is analyzed.
Under normal circumstances, the anti-ESD tests of whole machine are carried out under touch screen open state, and the testing touch screen system is led to
Signal integrated unit 2 is crossed, i.e., by increasing an interface card newly, realizes that the whole machine electrostatic discharge simulation of one-body touch screen 5 is surveyed
Examination.Signal in the present embodiment provides unit 1 can be to provide the electricity suitable for one-body touch screen 5 in normal operating conditions
Sub- device or circuit, such as desktop computer or notebook computer or other similar signaling systeies, i.e., it is whole equivalent to being originally used for
The unit of machine system offer signal is individually taken out and provides signal to one-body touch screen 5, provides unit 1 by signal and obtains signal
Source, it is ensured that one-body touch screen 5 is that anti-ESD tests are carried out under electric power thus supplied, reflects the test result of whole machine with this.
In addition, electrostatic applying unit 3 for can provide suitable for 5 electrostatic discharge testing of one-body touch screen electronic device or electricity
Road, test cell 4 are the system for 5 static discharge effect of test unit touch screen.
Signal provides unit 1, electrostatic applying unit 3 and test cell 4 more perfect alternative set at present
Standby, I will not elaborate.
As shown in Fig. 2 signal integrated unit 2 includes signal input module 21, signal conversion module 22 and signal output mould
Block 23, wherein：
Signal input module 21, provides unit 1 with signal and is detachably connected, and provides what unit 1 was provided for receiving signal
Supply voltage and drive signal, are input in machine system usb signal or the I2C signals for needing to provide one-body touch screen 5.Signal
Input module 21 includes at least one USB connector, and USB connector is connected for providing unit 1 with signal, is one-body touch screen
5 provide usb signal.
Signal input module 21 provides the concrete device that unit 1 is connected as with signal, there is provided realize to one-body touch screen 5
In running order voltage and signal.Preferably, signal input module 21 also includes signal adapter, and signal adapter is used
It is mutually compatible with signal conversion module 22 in the signal for providing signal 1 Jing USB connectors of offer unit, change in order to Jing signals
Module 22 is matched with one-body touch screen 5 after changing.I.e. according to signal provide unit 1 with signal integrated unit 2 it is general with
Match somebody with somebody, USB connector and signal are provided and can also include the signal for being compatible with USB connector and signal offer unit 1 between unit 1
The signal adapter of conversion.Wherein, for the particular type of specific adapter, it is compatible with USB connector and provides single with signal
Into I2C interface units, USB connector is connected in series the signal adapter that the signal of unit 1 is changed with I2C interface units, is one-body touch
Screen 5 provides I2C signals.Using the particular type of different adapters so that signal provides the identical signal reality that unit 1 is provided
Existing different types of output, improves versatility.
Signal conversion module 22, be connected with signal input module 21, and with signal output module 23 may be selected be connected, be used for
The voltage and signal that signal offer unit 1 is provided is converted to voltage swing and required signal suitable for one-body touch screen 5.
Signal conversion module 22 includes voltage and signal adapter, voltage and signal adapter for supply voltage and drive signal are turned
It is changed to and 5 corresponding supply voltage of one-body touch screen to be measured and drive signal.By the voltage in signal conversion module 22 and
Signal adapter, is capable of achieving the conversion of multiple voltage.
Signal output module 23, is detachably connected with one-body touch screen 5, for by supply voltage and drive signal export to
One-body touch screen 5, so that one-body touch screen 5 is in running order.In signal integrated unit 2, carry for different signals
For unit 1 and different types of one-body touch screen 5, signal output module 23 includes the multiple connector with differing needles number
(connector), and the respectively pricking with needle of connection corresponding with adapter, adapter for being connected with one-body touch screen 5 to be measured,
Any one in various pricking with needle is selectively connected with signal conversion module 22 (equally can be used as connection end by pricking with needle form),
So as to realize the connection of different types of one-body touch screen 5, versatility is improved.
Preferably, signal integrated unit 2 also includes protection module 24, and protection module 24 is connected with signal input module 21
Connect, protect for unit 1 being provided to external signal.By protection module 24, realize providing unit 1 to external signal
The effect protected.It may further be preferable that protection module 24 is antistatic IC, adopted according to different electrostatic potential grades
Different grades of antistatic IC, be simulated when the anti-ESD of whole machine is tested can to the desktop computer that connects or notebook computer (
PC) play preferable protected effect.
With reference to shown in Fig. 3, when PC does anti-ESD tests by the connection one-body touch of signal integrated unit 2 screen 5：Signal is integrated
Signal input module 21 in unit 2, according to the test needs of one-body touch screen 5, can be connected to USB interface by data wire
(be designated A1, can be A type USB females, it is adaptable to connect FPCA (Flexible Printed Circuit Assembly,
That is flexible printed wiring board) or PCBA (Printed Circuit Board Assembly, i.e. finished printed wiring boards) be USB
5) the one-body touch screen of interface receives the usb signal directly provided by notebook computer, and transmits to 23 (mark of signal conversion module
Know for B1)；Or the USB interface being connected with I2C interface tandems is connected to by data wire (is designated A3, can be Type B USB
Female, it is adaptable to connect FPCA or PCBA and 5) USB provided by notebook computer is provided believes for the one-body touch screen of I2C interfaces
Number, the usb signal conversion that notebook computer is provided by I2C interface units (being designated E) is turned by the USB in signal integrated unit 2
To transmit to signal conversion module 23 after I2C signals；
Signal transmission from notebook computer input is converted to suitable for one-body touch screen 5 to signal conversion module 23
Voltage swing and required signal, and feed back to pricking with needle C6 (outputs of the C6 as conversion signal), touched with being eventually fed monomer
Touch screen 5 and do anti-ESD tests；
Adapter connector of the signal output module 23 there is provided several varying number stitch pin, according to one-body touch
Connection the circuit FPCA or PCBA of screen 5, selection are connected to corresponding adapter connector (being designated D1-D5), further root
According to needs, it is connected on the pricking with needle (being designated C1-C5) of certain pin number being adapted, while by the corresponding pricking with needle according to pin
Definition is connected on the pricking with needle C6 of signal conversion module 22, is normally supplied for the IC on FPCA or PCBA so as to realize notebook computer
Electricity and offer drive signal, realize the simulation of 5 working condition of one-body touch screen；
Finally, static discharge is applied to one-body touch screen 5 by electrostatic applying unit 3, is resisted in test cell 4
ESD tests can simulate anti-ESD situation of the one-body touch screen 5 in whole machine, complete the anti-ESD tests of one-body touch screen 5.
Wherein, as one-body touch screen 5 and connected notebook computer are common ground, the i.e. ground of one-body touch screen 5
By the ground wire of the signal integrated unit 2 and notebook computer altogether, external interference affects little to which to line.In addition, protection module
24 (being designated A2) are in case the electrostatic that anti-ESD is produced when testing is damaged to notebook computer, it is to avoid notebook computer is damaged.
Therefore, for one-body touch screen 5, whether through FPCA (Flexible Printed Circuit
Assembly, i.e. flexible printed wiring board) or PCBA (Printed Circuit Board Assembly, i.e. finished product printings
Wiring board) as external connection circuit (used as touch screen connection member, general and one-body touch screen 5 forms entirety), and not
By FPCA or PCBA access signals is USB interface or I2C interfaces, is capable of achieving the anti-ESD that one-body touch screen 5 simulates whole machine
Situation is tested.
Accordingly, the present embodiment also provides a kind of testing touch screen method, for the whole machine static discharge of one-body touch screen
Simulation, realizes the whole machine electrostatic discharge testing of one-body touch screen.The testing touch screen method includes step：
Supply voltage and drive signal needed for 5 working condition of one-body touch screen is provided；
Conversion supply voltage and drive signal, and apply to one-body touch screen 5；
Electrostatic trigger is provided to one-body touch screen 5；
The test signal of one-body touch screen 5 is received, the static discharge shape according to the analysis of test signal to one-body touch screen 5
State is analyzed.
The operation principle of the testing touch screen system is：It is integrated that one-body touch screen 5 is connected to signal by PCBA or FPCA
23 region of signal output module of unit 2, the USB regions of the signal input module 21 of signal integrated unit 2 are connected by USB line
To notebook computer, notebook computer provides usb signal, is that the IC normal power supplies on the FPCA or PCBA of one-body touch screen 5 (can
The FPCA or PCBA for meeting one-body touch screen 5 accesses signal for usb signal or I2C signals)；Supplying one-body touch screen 5 is kept
In the case of electricity, static discharge is applied to one-body touch screen 5 by electrostatic applying unit 3, test cell 4 carries out touch screen antistatic
Discharge test.
Present embodiments provide a kind of whole machine of simulation based on one-body touch screen (Simulation of the whole
Machine) the testing scheme of anti-electrostatic discharging, can be used for simulating anti-ESD abilities of the one-body touch screen on whole machine, according to survey
The anti-ESD data of touch screen or test result judging anti-ESD performance of the touch screen in whole machine, with certain referential,
For example：If measuring the one-body touch screen anti-ESD under electric power thus supplied by the method for testing tests OK, it can be determined that whole machine resists
ESD tests are had no problem substantially；In addition, the simulation of one-body touch screen is under in working order, test result now more may be used
By, it is credible.
Testing touch screen system and testing touch screen method in the present invention, it is possible to achieve with production basic synchronization, energy
To touch screen in working order under anti-ESD performance tests, know the situation of current touch screen products performance, timely feedback in time
Touch screen producing line and design and adjusted in time, improve product yield and create preferably economic benefit.
It is understood that the embodiment of above principle being intended to be merely illustrative of the present and the exemplary enforcement for adopting
Mode, but the invention is not limited in this.For those skilled in the art, in the essence without departing from the present invention
In the case of god and essence, various modifications and improvement can be made, these modifications and improvement are also considered as protection scope of the present invention.
Claims (10)
1. a kind of testing touch screen system, for the whole machine electrostatic discharge simulation test of one-body touch screen, it is characterised in that include
Signal provides unit, signal integrated unit, electrostatic applying unit and test cell, wherein：
The signal provides unit, for the supply voltage needed for providing working condition for the one-body touch screen and driving letter
Number；
The signal integrated unit, provides the supply voltage and drive signal of unit, and applies to institute for changing the signal
State on one-body touch screen；
The electrostatic applying unit, for providing electrostatic trigger to the one-body touch screen；
The test cell, receives the test signal of the one-body touch screen, for the analysis according to test signal to the list
The static discharge state of body touch screen is analyzed.
2. testing touch screen system according to claim 1, it is characterised in that the signal integrated unit includes that signal is defeated
Enter module, signal conversion module and signal output module, wherein：
The signal input module, provides unit with the signal and is detachably connected, and carries for receiving the signal offer unit
For supply voltage and drive signal；
The signal conversion module, be connected with the signal input module, and with the signal output module may be selected be connected, use
Voltage swing and institute suitable for the one-body touch screen are converted in the voltage and signal that the signal is provided unit offer
Need signal；
The signal output module, is detachably connected with the one-body touch screen, for supply voltage and drive signal are exported
To the one-body touch screen, so that the one-body touch screen is in running order.
3. testing touch screen system according to claim 2, it is characterised in that the signal conversion module include voltage and
Signal adapter, the voltage and signal adapter are for supply voltage and drive signal are converted to and the monomer to be measured
The corresponding supply voltage of touch screen and drive signal.
4. testing touch screen system according to claim 2, it is characterised in that the signal integrated unit also includes protection
Module, the protection module are connected with the signal input module, are protected for providing unit to the external signal.
5. testing touch screen system according to claim 4, it is characterised in that the protection module is antistatic IC.
6. testing touch screen system according to claim 2, it is characterised in that the signal input module includes at least
Individual USB connector, the USB connector are connected for providing unit with the signal.
7. testing touch screen system according to claim 6, it is characterised in that the signal input module also includes signal
Transducer, the signal adapter are used to make the signal provide signal and the letter that USB connector described in unit Jing is provided
Number modular converter is mutually compatible, in order to match with the one-body touch screen after the signal conversion module conversion described in.
8. testing touch screen system according to claim 7, it is characterised in that the signal adapter is I2C interface units,
The USB connector is connected in series with the I2C interface units.
9. testing touch screen system according to claim 2, it is characterised in that the signal output module includes having not
With the multiple connector of pin number, and the pricking with needle of connection corresponding with the adapter respectively, the adapter for it is to be measured
The one-body touch screen connection, any one in various pricking with needle are selectively connected with the signal conversion module.
10. a kind of testing touch screen method, for the whole machine electrostatic discharge simulation test of one-body touch screen, it is characterised in that bag
Include step：
Supply voltage and drive signal needed for the one-body touch screen working condition is provided；
Conversion supply voltage and drive signal, and apply to the one-body touch screen；
Electrostatic trigger is provided to the one-body touch screen；
The test signal of the one-body touch screen is received, the static discharge according to the analysis of test signal to the one-body touch screen
State is analyzed.
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| CN107238769A (en) * | 2017-05-31 | 2017-10-10 | 晶晨半导体(上海)股份有限公司 | A kind of method of the Electro-static Driven Comb ability of analysis chip cabling |
| CN112882879A (en) * | 2021-02-04 | 2021-06-01 | 北京小米移动软件有限公司 | Detection method and device of touch screen and storage medium |
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| CN105182648A (en) * | 2015-10-28 | 2015-12-23 | 深圳市华星光电技术有限公司 | Liquid crystal display panel and liquid crystal display panel ESD monitoring method |
| CN205301465U (en) * | 2015-12-21 | 2016-06-08 | 国网四川省电力公司电力科学研究院 | Purchase electricity card antistatic effect testing arrangement |
| CN106249085A (en) * | 2016-08-30 | 2016-12-21 | 京东方科技集团股份有限公司 | Static discharge detection method and system |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107238769A (en) * | 2017-05-31 | 2017-10-10 | 晶晨半导体(上海)股份有限公司 | A kind of method of the Electro-static Driven Comb ability of analysis chip cabling |
| CN112882879A (en) * | 2021-02-04 | 2021-06-01 | 北京小米移动软件有限公司 | Detection method and device of touch screen and storage medium |
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| CN106680635B (en) | 2019-08-16 |
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