CN106680635B - Testing touch screen system and testing touch screen method - Google Patents
Testing touch screen system and testing touch screen method Download PDFInfo
- Publication number
- CN106680635B CN106680635B CN201710002805.3A CN201710002805A CN106680635B CN 106680635 B CN106680635 B CN 106680635B CN 201710002805 A CN201710002805 A CN 201710002805A CN 106680635 B CN106680635 B CN 106680635B
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- signal
- touch screen
- unit
- body touch
- testing
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Classifications
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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
Abstract
The invention belongs to field of display technology, and in particular to a kind of testing touch screen system and testing touch screen method.The testing touch screen system includes that signal provides unit, signal integrated unit, electrostatic applying unit and test cell: the signal provides unit, for supply voltage and driving signal needed for providing working condition for the one-body touch screen；The signal integrated unit provides the supply voltage and driving signal of unit for converting the signal, and is applied on the one-body touch screen；The electrostatic applying unit, for providing electrostatic trigger signal to the one-body touch screen；The test cell receives the test signal of the one-body touch screen, for being analyzed according to the analysis of test signal the static discharge state of the one-body touch screen.The testing touch screen system and testing touch screen method, may be implemented it is with production basic synchronization, can be to the anti-ESD performance test of touch screen in the operating condition, the case where timely learning current touch screen products performance.
Description
Technical field
The invention belongs to field of display technology, and in particular to a kind of testing touch screen system and testing touch screen method.
Background technique
Touch screen (Touch Panel, abbreviation TP) can provide completely new manipulation experience for user, take as own duty at present
As a kind of widely used external input device, the environment used is also more and more diversified, this resists to screen products are touched
ESD (Electro Static Discharge, static discharge) ability also proposed harsh requirement.
Under normal conditions, anti-ESD test of the manufacturer after touch screen product output, due to not assembled with display base plate also
Complete product is formed together, therefore the test status of touch screen under normal operating condition, anti-ESD at this time can not be provided
Test is only capable of the anti-ESD ability of reflection one-body touch screen, and can not obtain touch screen rear complete machine in conjunction with display base plate (can be band
Any end product of touch screen) anti-ESD ability；And the client of downstream display panel manufacturer is invited to carry out system test
Have that the period is longer, is unable to learn in time the case where current touch screen products performance again, it is difficult to timely feedback touch screen producing line and
It designs and is adjusted in time.
As it can be seen that design it is a kind of suitable for production basic synchronization, can be to the anti-ESD performance of touch screen in the operating condition
The test macro tested becomes at present urgently after exhausted technical problem.
Summary of the invention
The technical problem to be solved by the present invention is to aiming at the above shortcomings existing in the prior art, provide a kind of touch screen
Test macro and testing touch screen method propose a kind of anti-ESD testing scheme of the simulation complete machine based on touch screen, at least partly
Solve test problem with production basic synchronization, being tested the anti-ESD performance of touch screen in the operating condition.
Solving technical solution used by present invention problem is the testing touch screen system, for one-body touch screen
The test of complete machine electrostatic discharge simulation comprising signal provides unit, signal integrated unit, electrostatic applying unit and test cell,
Wherein:
The signal provides unit, for supply voltage and driving needed for providing working condition for the one-body touch screen
Signal；
The signal integrated unit provides the supply voltage and driving signal of unit for converting the signal, and applies
On to the one-body touch screen；
The electrostatic applying unit, for providing electrostatic trigger signal to the one-body touch screen；
The test cell receives the test signal of the one-body touch screen, for according to test signal analysis 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 list for receiving the signal
The supply voltage and driving signal that member provides；
The signal conversion module connect with the signal input module and may be selected to connect with the signal output module
It connects, for providing the signal to voltage that unit provides and signal is converted to 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, is used for supply voltage and driving signal
Output is to the one-body touch screen, so that the one-body touch screen is in running order.
Preferably, the signal conversion module includes voltage and signal adapter, and the voltage and signal adapter are used
In supply voltage and driving signal are converted to supply voltage corresponding with the one-body touch screen to be measured and driving signal.
Preferably, the signal integrated unit further includes protective module, and the protective module and the signal input mould
Block connection is protected for providing unit to the external signal.
Preferably, the protective module is antistatic IC.
Preferably, the signal input module includes at least one USB connector, and the USB connector is used for and institute
It states signal and unit connection is provided.
Preferably, the signal input module further includes signal adapter, and the signal adapter is for making the letter
It is mutually compatible with the signal conversion module number to provide the signal that provides through the USB connector of unit, in order to through the signal
Match after conversion module conversion with the one-body touch screen.
Preferably, the signal adapter is I2C interface device, and the USB connector is connected company with the I2C interface device
It connects.
Preferably, the signal output module includes the multiple connector with differing needles number, and respectively with it is described
Row's needle that connector is correspondingly connected with, the connector with the one-body touch screen to be measured for connecting, in a variety of row's needles
Any selectively connect with the signal conversion module.
A kind of testing touch screen method, the complete machine electrostatic discharge simulation for one-body touch screen are tested comprising step:
Supply voltage and driving signal needed for the one-body touch screen working condition is provided；
Supply voltage and driving signal are converted, and is applied on the one-body touch screen；
Electrostatic trigger signal is provided to the one-body touch screen；
The test signal for receiving the one-body touch screen, according to the analysis of test signal to the electrostatic of the one-body touch screen
Discharge condition is analyzed.
The beneficial effects of the present invention are: testing touch screen system and testing touch screen method in the present invention, may be implemented
With production basic synchronization, can be to the anti-ESD performance test of touch screen in the operating condition, timely learning current touch screen products
The case where performance, timely feedback touch screen producing line and design are simultaneously adjusted in time, improve product yield and creation preferably passes through
Ji benefit.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of testing touch screen system in the embodiment of the present invention 1；
Fig. 2 is the structural schematic diagram of signal integrated unit in Fig. 1；
Fig. 3 is the topology example figure of Fig. 2；
In appended drawing reference:
1- signal provides unit；
2- signal integrated unit；21- signal input module；22- signal conversion module；23- signal output module；
24- protective module；
3- electrostatic applying unit；
4- test cell；
5- one-body touch screen.
Specific embodiment
Technical solution in order to enable those skilled in the art to better understand the present invention, with reference to the accompanying drawing and specific embodiment party
Formula is described in further detail inventive touch screen test macro and testing touch screen method.
The present embodiment provides a kind of testing touch screen system and testing touch screen methods, for no including touching in current factory
The display panel complete product for touching screen, to the electrostatic discharge testing of touch screen can only reflect one-body touch screen anti-ESD ability and
The problem of being unable to test the anti-ESD ability of complete machine, the working condition based on one-body touch screen come simulated touch screen in complete machine are real
The complete machine electrostatic discharge simulation test of existing one-body touch screen can be touched according to ESD test result anti-under the simulation complete machine for judgement
Shield the anti-ESD situation in complete machine, to reference certain in factory.
As shown in Figure 1, a kind of testing touch screen system, the complete machine electrostatic discharge simulation for one-body touch screen 5 is tested,
Unit 1, signal integrated unit 2, electrostatic applying unit 3 and test cell 4 are provided including signal, in which:
Signal provides unit 1, for supply voltage and driving signal needed for providing working condition for one-body touch screen 5；
Signal integrated unit 2 provides the supply voltage and driving signal of unit 1 for conversion signal, and is applied to monomer
On touch screen 5；
Electrostatic applying unit 3, for providing electrostatic trigger signal to one-body touch screen 5；
Test cell 4, receive one-body touch screen 5 test signal, for according to test signal analysis to one-body touch
The static discharge state of screen 5 is analyzed.
Under normal conditions, the anti-ESD test of complete machine is carried out under touch screen open state, and the testing touch screen system is logical
Signal integrated unit 2 is crossed, i.e., by increasing an interface card newly, realizes that the complete machine electrostatic discharge simulation of one-body touch screen 5 is surveyed
Examination.It can be that can provide the electricity that normal operating conditions is in suitable for one-body touch screen 5 that signal in the present embodiment, which provides unit 1,
Sub- device or circuit, such as desktop computer or laptop or other similar signal system, that is, will be originally used for whole
The unit that machine system provides signal, which is individually taken out, provides signal to one-body touch screen 5, provides unit 1 by signal and obtains signal
Source is guaranteed that one-body touch screen 5 is to carry out anti-ESD test under electric power thus supplied, the test result of complete machine is reflected with this.
In addition, electrostatic applying unit 3 is the electronic device or electricity that can be provided suitable for 5 electrostatic discharge testing of one-body touch screen
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 are having more perfect alternative set at present
Standby, I will not elaborate.
As shown in Fig. 2, signal integrated unit 2 includes that signal input module 21, signal conversion module 22 and signal export mould
Block 23, in which:
Signal input module 21 provides unit 1 with signal and is detachably connected, and provides what unit 1 provided for receiving signal
Supply voltage and driving signal input the usb signal or I2C signal for needing to provide one-body touch screen 5 in machine system.Signal
Input module 21 includes at least one USB connector, and it is one-body touch screen that USB connector, which is used to provide unit 1 with signal and connect,
5 provide usb signal.
Signal input module 21 provides the specific device that unit 1 is connect as with signal, provides realization to one-body touch screen 5
In running order voltage and signal.Preferably, signal input module 21 further includes signal adapter, and signal adapter is used
It is mutually compatible with signal conversion module 22 in the signal for providing signal offer unit 1 through USB connector, in order to be converted through signal
Module 22 matches after converting with one-body touch screen 5.I.e. according to signal provide the general of unit 1 and signal integrated unit 2 with
Match, can also include the signal that USB connector and signal offer unit 1 are provided between USB connector and signal offer unit 1
The signal adapter of conversion.Wherein, it for the concrete type of specific connector, is compatible with USB connector and signal provides list
Into I2C interface device, USB connector and I2C interface device are connected in series the signal adapter that the signal of member 1 is converted, and are one-body touch
Screen 5 provides I2C signal.Using the concrete type of different connectors, so that signal provides the identical signal reality that unit 1 provides
Existing different types of output, improves versatility.
Signal conversion module 22 connect with signal input module 21 and connection may be selected with signal output module 23, is used for
It provides signal to voltage that unit 1 provides and signal is converted to voltage swing and required signal suitable for one-body touch screen 5.
Signal conversion module 22 includes voltage and signal adapter, and voltage and signal adapter are used to turn supply voltage and driving signal
It is changed to supply voltage corresponding with one-body touch screen 5 to be measured and driving signal.By voltage in signal conversion module 22 and
Signal adapter, it can be achieved that multiple voltage conversion.
Signal output module 23 is detachably connected with one-body touch screen 5, for by supply voltage and driving signal export to
One-body touch screen 5, so that one-body touch screen 5 is in running order.In signal integrated unit 2, mentioned 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), the row's needle and being respectively correspondingly connected with connector, connector are used to connect with one-body touch screen 5 to be measured,
Any one of a variety of row's needles are selectively connect with signal conversion module 22 (equally can be by row's aciculiform formula as connecting pin),
To realize the connection of different types of one-body touch screen 5, versatility is improved.
Preferably, signal integrated unit 2 further includes protective module 24, and protective module 24 and signal input module 21 connect
It connects, is protected for providing unit 1 to external signal.By protective module 24, realizes and provide unit 1 to external signal
The effect protected.It may further be preferable that protective module 24 is antistatic IC, used according to different electrostatic potential grades
Different grades of antistatic IC, can be to the desktop computer or laptop of connection (i.e. when carrying out the anti-ESD test of simulation complete machine
PC preferable protecting effect) is played.
Refering to what is shown in Fig. 3, when PC does anti-ESD test by the connection one-body touch screen 5 of signal integrated unit 2: signal is integrated
Signal input module 21 in unit 2 can be connected to USB interface by data line according to the test needs of one-body touch screen 5
(be identified as A1, can be A type USB female, be suitable for connection 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
The one-body touch screen 5 of interface) usb signal directly provided by laptop is provided, and it is transmitted to (the mark of signal conversion module 23
Knowing is B1)；Or the USB interface being connected in series with I2C interface is connected to by data line and (is identified as A3, can be Type B USB
Female, suitable for connecting the one-body touch screen 5 that FPCA or PCBA is I2C interface) it receives and is believed by the USB that laptop provides
Number, the usb signal that I2C interface device (being identified as E) provides laptop is turned by the USB in signal integrated unit 2 and is converted
To be transmitted to signal conversion module 23 after I2C signal；
After the signal inputted from laptop is transmitted to signal conversion module 23, be converted to suitable for one-body touch screen 5
Voltage swing and required signal, and the row of feeding back to needle C6 (output of the C6 as conversion signal), to be eventually fed monomer touching
It touches screen 5 and does anti-ESD test；
Signal output module 23 provides the connector connector of several different number stitch pin, according to one-body touch
Connection the circuit FPCA or PCBA of screen 5, selection are connected to corresponding connector connector (being identified as D1-D5), further root
It according to needs, is connected on row's needle (being identified as C1-C5) of certain compatible pin number, while by corresponding row's needle according to pin
Definition is connected on row's needle C6 of signal conversion module 22, to realize that laptop normally supplies for the IC on FPCA or PCBA
Electricity and offer driving signal, realize the simulation of 5 working condition of one-body touch screen；
Finally, applying static discharge to one-body touch screen 5 by electrostatic applying unit 3, resisted in test cell 4
ESD tests analog one-body touch screen 5 in the anti-ESD situation of complete machine, completes the anti-ESD test of one-body touch screen 5.
Wherein, since one-body touch screen 5 and laptop connected to it are total ground, the i.e. ground of one-body touch screen 5
Altogether by the ground wire of the signal integrated unit 2 and laptop, external interference influences it small line.In addition, protective module
24 (being identified as A2) damage laptop to prevent the electrostatic generated when anti-ESD test, avoid laptop impaired.
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 printing
Wiring board) as external connection circuit (as touch screen connecting component, general and one-body touch screen 5 forms entirety), and not
What it is by FPCA or PCBA access signal is USB interface or I2C interface, and the anti-ESD that one-body touch screen 5 simulates complete machine can be achieved
Situation test.
Correspondingly, the present embodiment also provides a kind of testing touch screen method, the complete machine static discharge for one-body touch screen
The complete machine electrostatic discharge testing of one-body touch screen is realized in simulation.The testing touch screen method comprising steps of
Supply voltage and driving signal needed for 5 working condition of one-body touch screen is provided；
Supply voltage and driving signal are converted, and is applied on one-body touch screen 5；
Electrostatic trigger signal is provided to one-body touch screen 5；
The test signal for receiving one-body touch screen 5, according to the analysis of test signal to the static discharge shape of one-body touch screen 5
State is analyzed.
The working principle of the testing touch screen system are as follows: one-body touch screen 5 is connected to signal by PCBA or FPCA and integrates
The region USB in 23 region of signal output module of unit 2, the signal input module 21 of signal integrated unit 2 is connected by USB line
To laptop, laptop provides usb signal, and the IC normal power supply for the FPCA of one-body touch screen 5 or on PCBA (can
FPCA or PCBA the access signal for meeting one-body touch screen 5 are usb signal or I2C signal)；One-body touch screen 5 is being kept to supply
In electric situation, static discharge is applied to one-body touch screen 5 by electrostatic applying unit 3, it is antistatic that test cell 4 carries out touch screen
Discharge test.
Present embodiments provide a kind of simulation complete machine (Simulation of the whole based on one-body touch screen
Machine) the testing scheme of anti-electrostatic discharging can be used for simulating anti-ESD ability of the one-body touch screen in complete machine, according to survey
The anti-ESD data of touch screen or test result judge that touch screen in the anti-ESD performance of complete machine, has certain referential,
Such as: if measuring the one-body touch screen anti-ESD under electric power thus supplied by the test method tests OK, it can be determined that complete machine is anti-
ESD test has no problem substantially；In addition, the simulation of one-body touch screen is in the operating condition, test result at this time more may be used
It leans on, is credible.
Testing touch screen system and testing touch screen method in the present invention may be implemented and production basic synchronization, energy
To the anti-ESD performance test of touch screen in the operating condition, the case where timely learning current touch screen products performance, timely feedback
Touch screen producing line and design are simultaneously adjusted in time, are improved product yield and are created preferable economic benefit.
It is understood that the principle that embodiment of above is intended to be merely illustrative of the present and the exemplary implementation that uses
Mode, however the present invention is not limited thereto.For those skilled in the art, essence of the invention is not being departed from
In the case where mind and essence, various changes and modifications can be made therein, these variations and modifications are also considered as protection scope of the present invention.
Claims (10)
1. a kind of testing touch screen system, the complete machine electrostatic discharge simulation for one-body touch screen is tested, which is characterized in that including
Signal provides unit, signal integrated unit, electrostatic applying unit and test cell, in which:
The signal provides unit, for 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 driving signal of unit for converting the signal, and is applied to institute
It states on one-body touch screen；Wherein, the ground wire of the one-body touch screen is provided single by the signal integrated unit and the signal
The ground wire of member is altogether；
The electrostatic applying unit, for providing electrostatic trigger signal to the one-body touch screen；
The test cell receives the test signal of the one-body touch screen, for according to test signal analysis to the list
The static discharge state of body touch screen is analyzed.
2. testing touch screen system according to claim 1, which is characterized in that the signal integrated unit includes that signal is defeated
Enter module, signal conversion module and signal output module, in which:
The signal input module provides unit with the signal and is detachably connected, and mentions for receiving the signal offer unit
The supply voltage and driving signal of confession；
The signal conversion module connect with the signal input module and connection may be selected with the signal output module, uses
In providing the signal to voltage that unit provides and signal is converted to voltage swing and institute suitable for the one-body touch screen
Need signal；
The signal output module is detachably connected with the one-body touch screen, for exporting supply voltage and driving signal
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, which is characterized in that the signal conversion module include voltage and
Signal adapter, the voltage and signal adapter are for being converted to and the monomer to be measured supply voltage and driving signal
The corresponding supply voltage of touch screen and driving signal.
4. testing touch screen system according to claim 2, which is characterized in that the signal integrated unit further includes protection
Module, the protective module are connect with the signal input module, are protected for providing unit to the external signal.
5. testing touch screen system according to claim 4, which is characterized in that the protective module is antistatic IC.
6. testing touch screen system according to claim 2, which is characterized in that the signal input module includes at least one
A USB connector, the USB connector are used to provide unit with the signal and connect.
7. testing touch screen system according to claim 6, which is characterized in that the signal input module further includes signal
Converter, the signal adapter are used to that the signal to be made to provide the signal and the letter that unit is provided through the USB connector
Number conversion module is mutually compatible with, in order to match after signal conversion module conversion with the one-body touch screen.
8. testing touch screen system according to claim 7, which is characterized in that the signal adapter is I2C interface device,
The USB connector and the I2C interface device are connected in series.
9. testing touch screen system according to claim 2, which is characterized in that the signal output module includes having not
With the multiple connector of needle number, and the row's needle being correspondingly connected with respectively with the connector, the connector be used for it is to be measured
The one-body touch screen connection, any one of a variety of described row's needles are selectively connect with the signal conversion module.
10. a kind of testing touch screen method, the complete machine electrostatic discharge simulation for one-body touch screen is tested, which is characterized in that packet
Include step:
Supply voltage and driving signal needed for the one-body touch screen working condition is provided；
Supply voltage and driving signal are converted, and is applied on the one-body touch screen；Wherein, the ground wire of the one-body touch screen
The ground wire of unit is provided altogether with the signal for being used to provide the described supply voltage and driving signal；
Electrostatic trigger signal is provided to the one-body touch screen；
The test signal for receiving the one-body touch screen, according to the analysis of test signal to the static discharge of 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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