CN105336287B - Test method, the device and system of display screen - Google Patents
Test method, the device and system of display screen Download PDFInfo
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- CN105336287B CN105336287B CN201410384523.0A CN201410384523A CN105336287B CN 105336287 B CN105336287 B CN 105336287B CN 201410384523 A CN201410384523 A CN 201410384523A CN 105336287 B CN105336287 B CN 105336287B
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Abstract
The invention discloses a kind of test methods of display screen, device and system.Wherein, this method comprises: display screen tester obtains the standard parameter of multiple components of display screen to be tested；Display screen tester acquires the test data of multiple components of display screen to be tested, and test data includes: the current value of the reference voltage value of display screen to be tested, the low and high level value of the infrared receiving terminal of display screen to be tested, high/low currents value and decoding result, the LED current value of display screen to be tested, charactron；Each test data is compared display screen tester respectively with corresponding standard parameter, obtains test result.By means of the invention it is possible to solve the problems, such as effect low to the test method testing efficiency of display screen in related art, and then realizing the testing efficiency of raising test display screen.
Description
Technical field
The present invention relates to testing fields, test method, device and system in particular to a kind of display screen.
Background technique
Split air conditioner bar-indicators test at present still relies upon inspector manual testing judgement, and test needs the item of artificial judgment
Mesh has reception failure etc. caused by facial mask defect, aluminium foil defect, functional fault, and artificial test for a long time is very easy to cause to regard
Feel fatigue, and some more difficult grasps of aesthetic appearance problem scale, is easy to appear missing inspection.It can be seen that existing artificial judgment mode
There is certain influence to quality control.
At present for the low problem of the test method testing efficiency to display screen in the related technology, not yet propose at present effective
Solution.
Summary of the invention
For the low problem of the test method testing efficiency in the related technology to display screen, effective solution is not yet proposed at present
Certainly scheme, for this purpose, the main purpose of the present invention is to provide a kind of test method of display screen, device and system, on solving
State problem.
To achieve the goals above, according to an aspect of the invention, there is provided a kind of test method of display screen, the party
Method includes: the standard parameter that display screen tester obtains multiple components of display screen to be tested；Display screen tester acquisition to
The test data of multiple components of the display screen of test, test data include: the reference voltage value, to be measured of display screen to be tested
Low and high level value, high/low currents value and decoding result, the LED of display screen to be tested of the infrared receiving terminal of the display screen of examination are electric
The current value of flow valuve, charactron；Each test data is compared display screen tester respectively with corresponding standard parameter, obtains
To test result.
To achieve the goals above, according to another aspect of the present invention, a kind of test device of display screen is provided, the dress
Setting includes: acquisition module, the standard parameter of multiple components for obtaining display screen to be tested；Acquisition module, for acquiring
The test data of multiple components of display screen to be tested, test data include: display screen to be tested reference voltage value, to
The LED of the low and high level value of the infrared receiving terminal of the display screen of test, high/low currents value and decoding result, display screen to be tested
The current value of current value, charactron；Test module, for comparing each test data respectively with corresponding standard parameter
It is right, obtain test result.
To achieve the goals above, according to another aspect of the present invention, a kind of test macro of display screen is provided, this is
System includes: display screen to be tested；Display screen tester is connect with display screen to be tested, for acquiring display to be tested
The test data of multiple components of screen, and the standard parameter of multiple components of display screen to be tested is obtained, by each test number
It is compared respectively according to corresponding standard parameter, obtains test result；Wherein, display screen tester test data include: to
The reference voltage value of the display screen of test, the low and high level value of the infrared receiving terminal of display screen to be tested, high/low currents value and
Decoding result, the LED current value of display screen to be tested, charactron current value.
Through the invention, the standard parameter of multiple components of display screen to be tested is obtained using display screen tester；It is aobvious
Display screen tester acquires the test data of multiple components of display screen to be tested, and test data includes: display screen to be tested
Reference voltage value, display screen to be tested infrared receiving terminal low and high level value, high/low currents value and decoding result, to be measured
The current value of the LED current value of the display screen of examination, charactron；Display screen tester joins each test data with corresponding standard
Number is compared respectively, obtains test result, solves low to the test method testing efficiency of display screen in related art
The problem of, and then realize the effect for improving the testing efficiency of test display screen.
Detailed description of the invention
The drawings described herein are used to provide a further understanding of the present invention, constitutes part of this application, this hair
Bright illustrative embodiments and their description are used to explain the present invention, and are not constituted improper limitations of the present invention.In the accompanying drawings:
Fig. 1 is the structural schematic diagram of the test macro of according to embodiments of the present invention one display screen；
Fig. 2 is the circuit diagram of the FLASH memory in the test macro of according to embodiments of the present invention one display screen；
Fig. 3 is the circuit signal of the eeprom memory in the test macro of according to embodiments of the present invention one display screen
Figure；
Fig. 4 is the high-precision AD acquisition reference voltage source in the test macro of according to embodiments of the present invention one display screen
Circuit diagram；
Fig. 5 is that the infrared integrated in the test macro of according to embodiments of the present invention one display screen receives head current detection electricity
The circuit diagram on road；
Fig. 6 is the circuit of the telecommunication circuit externally exported in the test macro of according to embodiments of the present invention one display screen
Schematic diagram；
Fig. 7 is the flow chart of the test method of according to embodiments of the present invention two display screen；And
Fig. 8 is the structural schematic diagram of the test device of according to embodiments of the present invention three display screen.
Specific embodiment
It should be noted that in the absence of conflict, the features in the embodiments and the embodiments of the present application can phase
Mutually combination.The present invention will be described in detail below with reference to the accompanying drawings and embodiments.
In order to enable those skilled in the art to better understand the solution of the present invention, below in conjunction in the embodiment of the present invention
Attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is only
The embodiment of a part of the invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill people
The model that the present invention protects all should belong in member's every other embodiment obtained without making creative work
It encloses.
It should be noted that description and claims of this specification and term " first " in above-mentioned attached drawing, "
Two " etc. be to be used to distinguish similar objects, without being used to describe a particular order or precedence order.It should be understood that using in this way
Data be interchangeable under appropriate circumstances, so as to the embodiment of the present invention described herein can in addition to illustrating herein or
Sequence other than those of description is implemented.In addition, term " includes " and " having " and their any deformation, it is intended that cover
Cover it is non-exclusive include, for example, the process, method, system, product or equipment for containing a series of steps or units are not necessarily limited to
Step or unit those of is clearly listed, but may include be not clearly listed or for these process, methods, product
Or other step or units that equipment is intrinsic.
Embodiment one:
Fig. 1 is the structural schematic diagram of the test macro of display screen according to an embodiment of the present invention.As shown in Figure 1, the display
The test macro of screen may include: display screen tester 10 and display screen 12 to be tested.
Wherein, display screen tester 10 is connect, for acquiring the more of display screen to be tested with display screen 10 to be tested
The test data of a component, and obtain the standard parameter of multiple components of display screen to be tested, by each test data with it is right
The standard parameter answered is compared respectively, obtains test result；Wherein, display screen tester test data includes: to be tested
The reference voltage value of display screen, the low and high level value of the infrared receiving terminal of display screen to be tested, high/low currents value and decoding knot
Fruit, the LED current value of display screen to be tested, charactron current value.
The test macro that the above embodiments of the present application provide provides a kind of automatic test work by display screen tester
Dress, the tester by the test data of collecting test object, then by test data and the standard parameter that has learnt into
Row compares, so that it is determined that whether display screen to be tested is qualified.This invents the automatic test that can be used for air-conditioning display, phase
Artificial judgment is tested, improves testing reliability and testing efficiency, and then inspection quality can be improved, reduces failure after sale
Rate.
Display screen tester 10 in the above embodiments of the present application may include: memory 101, in starting display screen
After the learning functionality of tester, saves the standard as obtained from the supplemental characteristic for the multiple components for acquiring conventional display and join
Number, wherein standard parameter includes: standard low and high level value, standard high/low currents value and the mark of standard voltage value, infrared receiving terminal
Quasi- solution code value, standard LED current value, the standard current value of charactron.
Preferably, it in the above embodiments of the present application, before the learning functionality of starting display screen tester, can also be performed
Following function: being arranged the upper limit float value and lower limit float value of standard parameter so that standard parameter according to upper limit float value or under
Limit float value is adjusted.
Specifically, study function can be triggered by clicking the study button on the display screen that display screen tester provides
Can, display screen tester is connected to a conventional display at this time, and each parameters of operating part data of the display screen can be used as other
The standard parameter of display screen to be tested, after conventional display to be connected to display screen tester and clicks study button,
Display screen tester just can read corresponding supplemental characteristic, and be saved in storage for the supplemental characteristic of each component as standard parameter
In device, governor circuit is waited to call.
Herein it should be noted that the display screen that above-mentioned display screen tester provides provides not only study button, may be used also
To show that the set content of each standard parameter, the set content of the standard parameter can be repaired directly manually on a display screen
Change, in addition, upper limit float value and lower limit float value that input frame to input standard parameter for tester are additionally provided, so that
After the study to standard parameter of display screen tester, tester is floated by the upper limit float value and lower limit of established standards parameter
Value is adjusted the standard parameter got, for example, standard value, which is floated, 10% or floats downward 10%.
In conjunction with shown in Fig. 2 and Fig. 3, the above-mentioned memory of the application can be FLASH memory or eeprom memory, above-mentioned
Memory is used for storage section bound parameter and model in addition to storage bound storage circuit.
In a kind of alternative embodiment provided by the present application, the circuit of above-mentioned display screen tester 10 may include following each
Component: governor circuit 103, and be separately connected with governor circuit 103 reference voltage Acquisition Circuit 105, infrared receiving terminal inspection
Slowdown monitoring circuit 107, LED Acquisition Circuit 109 and charactron Acquisition Circuit 121.
Wherein, governor circuit provided by the present application can be ARM governor circuit, which can be model are as follows:
The display governor circuit of STC15F2K60S2, may include reset, oikocryst vibration, and the circuits such as real-time clock are mainly used for colored liquid
Crystalline substance screen driving, touch control, some models storage, the functions such as communication.
Reference voltage Acquisition Circuit, for acquiring the reference voltage value of display screen to be tested.Benchmark provided by the present application
Voltage collection circuit can be high-precision AD acquisition reference voltage source as shown in Figure 4.
Specifically, the reference voltage value of display screen to be tested is compared by governor circuit with standard voltage value, if
The difference of reference voltage value and standard voltage value is within the first preset range, then test result is at display screen to be tested
In open-circuit condition, otherwise test result is that display screen to be tested is in short-circuit condition.
Infrared receiving terminal detection circuit, for acquiring the low and high level value and height of the infrared receiving terminal of display screen to be tested
Low current value.
Above-mentioned infrared receiving terminal detection circuit can be infrared integrated as shown in Figure 5 and receive head current detection circuit, main
The circuit power consumption electric current that circuit receives head by acquisition infrared integrated, output voltage amplitude, decoding result are controlled, while can be combined
The upper and lower limits of parameter setting differentiate that infrared integrated receives the working condition of head.
Specifically, governor circuit is by by the low and high level value and high/low currents of the infrared receiving terminal of display screen to be tested
Value is compared with the standard low and high level value of infrared receiving terminal and standard high/low currents value respectively, if low and high level value and mark
The level difference value of quasi- low and high level value is within the second preset range, and the electric current of high/low currents value and standard high/low currents value
Difference is within third preset range, then test result is that the infrared receiving terminal of verifying display screen to be tested is in normal work
Make state, otherwise test result is that there are failures for the infrared receiving terminal of verifying display screen to be tested.
Preferably, display screen tester can also include: driving device, for driving remote controler to emit infrared remote instruction
To the infrared receiving terminal of display screen to be tested.
Therefore, governor circuit is also used to after receiving the infrared remote instruction that infrared receiving terminal forwarding comes, to infrared
Telecommand is decoded, and obtained decoding result is compared with standard solution code value, if decoding result and standard decode
Identical, then the infrared receiving terminal for verifying display screen to be tested is in normal operating conditions, otherwise verifies display screen to be tested
Infrared receiving terminal there are failures.
Remote controler in the application above scheme can be decaying remote controler, and display screen tester passes through automatic testing tool
The decaying remote controler is driven to complete automatic transmitting, i.e., (i.e. remote controler is manually pressed in simulation to display screen tester simulation triggering command
Remote control button) give remote controler, remote controler generate infrared remote instruction (such as: IX10010001), and by infrared remote instruction
Governor circuit is returned to, is decoded for governor circuit, and obtained decoding result is compared with standard solution code value.From
And auto testing instrument is furthermore achieved and receives head power consumption electric current by calculating, output voltage amplitude, the parameters such as decoding integrate
Judge whether accepting header is qualified.
It follows that judge infrared receiving terminal whether be in normal working condition be referred to infrared receiving terminal with
Under any one or more parameters confirmed: the decoding result of low and high level value, high/low currents value and infrared remote instruction.
LED Acquisition Circuit, for acquiring the LED current of display screen to be tested.
Specifically, governor circuit can compare the LED current value of display screen to be tested and standard LED current value
Compared with if the difference of LED current value and standard LED current value is within the 4th preset range, test result is to be tested
The LED particle of display screen be in normal operating conditions, otherwise test result be the LED particle of display screen to be tested exist therefore
Barrier.
Charactron Acquisition Circuit, the current value of the charactron for acquiring display screen to be tested.
Specifically, governor circuit can compare the current value of the charactron of display screen to be tested with standard current value
Compared with if the difference of the standard current value of charactron and standard current value is within the 5th preset range, test result is
The charactron of display screen to be tested is in normal operating conditions, and otherwise test result is that the charactron of display screen to be tested is deposited
In failure.
In summary, this application provides one kind researches and develops in aggregation routine person, structural engineer, hardware circuit engineer etc.
After the scheme that personnel determine, the production of detection device hardware and software is completed by display screen tester.It realizes as follows
Function: opening for display board is measured come the voltage return value acquired using the governor circuit in display screen tester as single-chip microcontroller
Short-circuit state, and the low and high level value and current value of the infrared receiving terminal according to single-chip microcontroller acquisition, judge infrared receiving terminal is
It is no normal.According to the LED of single-chip microcontroller acquisition and the current value of charactron, judge whether LED and charactron work normally.Test is closed
Cylinder is used to pull out line automatically after lattice.
Preferably, the display screen tester in the above embodiments of the present application is connected by test fixture and display screen to be tested
It connects, wherein test fixture includes: at least one set of display screen connecting interface and test interface, wherein the company of display screen to be tested
Wiring accesses display screen connecting interface, and the test connecting line of display screen tester accesses test interface, display screen connecting interface and
Connection terminal is laid between test interface；Electric cylinders are connect with connection terminal, for surveying in the end for receiving display screen tester
After examination instruction, driving electric cylinders separate connection terminal with display screen connecting interface or test interface.
Above scheme realizes a kind of automatic Ba Xian mechanism, the movement for manually pulling out line is eliminated, to prevent inspector from pulling out line
It is improper, it causes that terminal removal and line are pulled apart and waits man-made faults, increased in system design and pull out line function automatically, be implanted into tooling
Small-sized electric cylinders.When comprehensive tester complete test after issue instruction, at this time electric cylinders act retracted downward, whole terminals by vertically to
Under power and separated with tooling, realize and pull out line automatically.
Herein it should be noted that the communication externally exported that the display screen tester in the above embodiments of the present application provides
Circuit can use device as shown in FIG. 6 (not reserving outside the type of part).
Herein it should be noted that the application develops a kind of display auto testing instrument, the equipment can in 2-3 seconds intelligence
It is capable of measuring and differentiates whether display is qualified, and by the corresponding test value of liquid crystal display real-time display, partial function is as follows:
1, the power consumption electric current of automatic measurement display board LED and charactron；
2, band learning functionality, can learn the measured parameter of different display boards, can store the display board of different model；
3, beginning road detection function is had, detects switch road situation between each line automatically after plugging display board；
4, driving pulls out cable architecture realization automatically and pulls out line automatically after test passes；
5, measurement receives the power consumption electric current of head, the amplitude of output signal, the correctness of exports coding；
6,3.7 cun of color touch liquid crystal displays show test mode and test result.
Embodiment two:
Fig. 7 is the flow chart of the test method of according to embodiments of the present invention two display screen.This method includes as shown in Figure 7
Following steps:
Step S20, display screen tester obtain the standard parameter of multiple components of display screen to be tested.
Step S22, display screen tester acquire the test data of multiple components of display screen to be tested, test data packet
It includes: the reference voltage value of display screen to be tested, the low and high level value of the infrared receiving terminal of display screen to be tested, high/low currents
Value and decoding result, the LED current value of display screen to be tested, charactron current value.
Each test data is compared respectively with corresponding standard parameter, is surveyed by step S24, display screen tester
Test result.
The test method that the above embodiments of the present application provide provides a kind of automatic test work by display screen tester
Dress, the tester by the test data of collecting test object, then by test data and the standard parameter that has learnt into
Row compares, so that it is determined that whether display screen to be tested is qualified.This invents the automatic test that can be used for air-conditioning display, phase
Artificial judgment is tested, improves testing reliability and testing efficiency, and then inspection quality can be improved, reduces failure after sale
Rate.
In the above embodiments of the present application, display screen tester obtains the standard parameter of multiple components of display screen to be tested
The step of may include: to be communicatively coupled conventional display and display screen tester；Start the study of display screen tester
Function acquires the supplemental characteristic of multiple components of conventional display as standard parameter, wherein standard parameter includes: standard electric
Pressure value, the standard low and high level value of infrared receiving terminal, standard high/low currents value and standard solution code value, standard LED current value, number
The standard current value of pipe.Above-mentioned standard parameter can store in memory.
Preferably, in the scheme that the application realizes, before the learning functionality of starting display screen tester, method can be with
It include: the upper limit float value and lower limit float value that standard parameter is set, so that standard parameter is floating according to upper limit float value or lower limit
Dynamic value is adjusted.
Specifically, study function can be triggered by clicking the study button on the display screen that display screen tester provides
Can, display screen tester is connected to a conventional display at this time, and each parameters of operating part data of the display screen can be used as other
The standard parameter of display screen to be tested, after conventional display to be connected to display screen tester and clicks study button,
Display screen tester just can read corresponding supplemental characteristic, and be saved in storage for the supplemental characteristic of each component as standard parameter
In device, governor circuit is waited to call.
Herein it should be noted that the display screen that above-mentioned display screen tester provides provides not only study button, may be used also
To show that the set content of each standard parameter, the set content of the standard parameter can be repaired directly manually on a display screen
Change, in addition, upper limit float value and lower limit float value that input frame to input standard parameter for tester are additionally provided, so that
After the study to standard parameter of display screen tester, tester is floated by the upper limit float value and lower limit of established standards parameter
Value is adjusted the standard parameter got, for example, standard value, which is floated, 10% or floats downward 10%.
In the above embodiments of the present application, display screen tester carries out each test data with corresponding standard parameter respectively
The step of comparing, obtaining test result includes following any one or more schemes:
Scheme one: the reference voltage value of display screen to be tested is compared with standard voltage value, if reference voltage
The difference of value and standard voltage value is within the first preset range, then test result is that display screen to be tested is in open circuit shape
State, otherwise test result is that display screen to be tested is in short-circuit condition.
Scheme two: by the low and high level value of the infrared receiving terminal of display screen to be tested and high/low currents value respectively with it is infrared
The standard low and high level value and standard high/low currents value for receiving head are compared, if low and high level value and standard low and high level value
Level difference value be within the second preset range, and the current differential of high/low currents value and standard high/low currents value is in third
Within preset range, then test result is that the infrared receiving terminal of verifying display screen to be tested is in normal operating conditions, otherwise
Test result is that there are failures for the infrared receiving terminal of verifying display screen to be tested.
Preferably, in a kind of alternative embodiment provided by the present application, in the infrared receiver for verifying display screen to be tested
Following steps can also be performed before normal operating conditions in head: display screen tester drives remote controler transmitting infrared remote control
It instructs to the infrared receiving terminal of display screen to be tested；Infrared remote instruction is transmitted to display screen tester by infrared receiving terminal
Governor circuit；Governor circuit is decoded infrared remote instruction, and obtained decoding result is compared with standard solution code value,
If decoding result is identical as standard decoding, the infrared receiving terminal for verifying display screen to be tested is in normal operating conditions,
Otherwise verifying the infrared receiving terminal of display screen to be tested, there are failures.
Remote controler in the application above scheme can be decaying remote controler, and display screen tester passes through automatic testing tool
The decaying remote controler is driven to complete automatic transmitting, i.e., (i.e. remote controler is manually pressed in simulation to display screen tester simulation triggering command
Remote control button) give remote controler, remote controler generate infrared remote instruction (such as: IX10010001), and by infrared remote instruction
Governor circuit is returned to, is decoded for governor circuit, and obtained decoding result is compared with standard solution code value.From
And auto testing instrument is furthermore achieved and receives head power consumption electric current by calculating, output voltage amplitude, the parameters such as decoding integrate
Judge whether accepting header is qualified.
It follows that judge infrared receiving terminal whether be in normal working condition be referred to infrared receiving terminal with
Under any one or more parameters confirmed: the decoding result of low and high level value, high/low currents value and infrared remote instruction.
Scheme three: the LED current value of display screen to be tested is compared with standard LED current value, if LED current
The difference of value and standard LED current value is within the 4th preset range, then test result is LED of display screen to be tested
Grain be in normal operating conditions, otherwise test result be display screen to be tested LED particle there are failures.
Scheme four: the current value of the charactron of display screen to be tested is compared with standard current value, if digital
The standard current value of pipe and the difference of standard current value are within the 5th preset range, then test result is display to be tested
The charactron of screen is in normal operating conditions, otherwise test result be display screen to be tested charactron there are failures.
In summary, this application provides one kind researches and develops in aggregation routine person, structural engineer, hardware circuit engineer etc.
After the scheme that personnel determine, the production of detection device hardware and software is completed by display screen tester.It realizes as follows
Function: opening for display board is measured come the voltage return value acquired using the governor circuit in display screen tester as single-chip microcontroller
Short-circuit state, and the low and high level value and current value of the infrared receiving terminal according to single-chip microcontroller acquisition, judge infrared receiving terminal is
It is no normal.According to the LED of single-chip microcontroller acquisition and the current value of charactron, judge whether LED and charactron work normally.Test is closed
Cylinder is used to pull out line automatically after lattice.
Preferably, the display screen tester in above-described embodiment can be connected by test fixture and display screen to be tested
It connects, wherein test fixture includes: at least one set of display screen connecting interface and test interface, wherein the company of display screen to be tested
Wiring accesses display screen connecting interface, and the test connecting line of display screen tester accesses test interface, display screen connecting interface and
Connection terminal is laid between test interface；Electric cylinders are connect with connection terminal, for surveying in the end for receiving display screen tester
After examination instruction, driving electric cylinders separate connection terminal with display screen connecting interface or test interface.
Above scheme realizes a kind of automatic Ba Xian mechanism, the movement for manually pulling out line is eliminated, to prevent inspector from pulling out line
It is improper, it causes that terminal removal and line are pulled apart and waits man-made faults, increased in system design and pull out line function automatically, be implanted into tooling
Small-sized electric cylinders.When comprehensive tester complete test after issue instruction, at this time electric cylinders act retracted downward, whole terminals by vertically to
Under power and separated with tooling, realize and pull out line automatically.
Herein it should be noted that the application develops a kind of display auto testing instrument, the equipment can in 2-3 seconds intelligence
It is capable of measuring and differentiates whether display is qualified, and by the corresponding test value of liquid crystal display real-time display, partial function is as follows:
1, the power consumption electric current of automatic measurement display board LED and charactron；
2, band learning functionality, can learn the measured parameter of different display boards, can store the display board of different model；
3, beginning road detection function is had, detects switch road situation between each line automatically after plugging display board；
4, driving pulls out cable architecture realization automatically and pulls out line automatically after test passes；
5, measurement receives the power consumption electric current of head, the amplitude of output signal, the correctness of exports coding；
6,3.7 cun of color touch liquid crystal displays show test mode and test result.
It should be noted that step shown in the flowchart of the accompanying drawings can be in such as a group of computer-executable instructions
It is executed in computer system, although also, logical order is shown in flow charts, and it in some cases, can be with not
The sequence being same as herein executes shown or described step.
Embodiment three:
Fig. 8 is the structural schematic diagram of the test device of according to embodiments of the present invention three display screen.As shown in figure 8, this is aobvious
The test device of display screen includes: to obtain module 80, acquisition module 82 and test module 84.
Wherein, module 80, the standard parameter of multiple components for obtaining display screen to be tested are obtained；Acquisition module
82, the test data of multiple components for acquiring display screen to be tested, test data includes: the base of display screen to be tested
It is quasi- voltage value, the low and high level value of the infrared receiving terminal of display screen to be tested, high/low currents value and decoding result, to be tested
The current value of the LED current value of display screen, charactron；Test module 84, for joining each test data with corresponding standard
Number is compared respectively, obtains test result.
Preferably, above-mentioned acquisition module 80 may include: communication module 801, for surveying conventional display and display screen
Examination instrument is communicatively coupled；Sub- acquisition module 803 acquires conventional display for starting the learning functionality of display screen tester
Multiple components supplemental characteristic as standard parameter, wherein standard parameter includes: the mark of standard voltage value, infrared receiving terminal
Quasi- low and high level value, standard high/low currents value and standard solution code value, standard LED current value, the standard current value of charactron.
Preferably, before the learning functionality of starting display screen tester, the upper limit float value of standard parameter can be set
With lower limit float value so that standard parameter is adjusted according to upper limit float value or lower limit float value.
Test module 84 in above-described embodiment may include following any one or more functional modules:
Open-short circuit module 841, for comparing the reference voltage value of display screen to be tested with standard voltage value
Compared with if the difference of reference voltage value and standard voltage value is within the first preset range, test result is to be tested
Display screen is in open-circuit condition, and otherwise test result is that display screen to be tested is in short-circuit condition；
Infrared receiving terminal test module 843, for by the low and high level value of the infrared receiving terminal of display screen to be tested and
High/low currents value is compared with the standard low and high level value of infrared receiving terminal and standard high/low currents value respectively, if height electricity
The level difference value of level values and standard low and high level value is within the second preset range, and high/low currents value and standard high/low currents
The current differential of value is within third preset range, then test result is at the infrared receiving terminal of verifying display screen to be tested
In normal operating conditions, otherwise test result is that there are failures for the infrared receiving terminal of verifying display screen to be tested；
LED particle test module 845, for carrying out the LED current value of display screen to be tested and standard LED current value
Compare, if the difference of LED current value and standard LED current value is within the 4th preset range, test result is to be measured
The LED particle of the display screen of examination is in normal operating conditions, and otherwise test result is that the LED particle of display screen to be tested exists
Failure；
Charactron test module 847, for by the current value of the charactron of display screen to be tested and standard current value into
Row compares, if the difference of the standard current value of charactron and standard current value is within the 5th preset range, tests knot
Fruit is that the charactron of display screen to be tested is in normal operating conditions, and otherwise test result is the number of display screen to be tested
There are failures for pipe.
Preferably, it in above-described embodiment, is executed in infrared receiving terminal test module 843 and verifies the red of display screen to be tested
Outer reception head is in front of the function of normal operating conditions, and device can also run following functional module: drive module, for driving
Dynamic remote controler emits the infrared receiving terminal of infrared remote instruction to display screen to be tested；Receiving module, for receiving infrared connect
Receive the infrared remote instruction of head forwarding；Decoder module, for being decoded to infrared remote instruction；Telecommand test module,
For obtained decoding result to be compared with standard solution code value, if decoding result is identical as standard decoding, verifying to
The infrared receiving terminal of the display screen of test is in normal operating conditions, and the infrared receiving terminal for otherwise verifying display screen to be tested is deposited
In failure.
Preferably, the display screen tester in above-described embodiment is connect by test fixture with display screen to be tested,
In, test fixture may include: at least one set of display screen connecting interface and test interface, wherein the company of display screen to be tested
Wiring accesses display screen connecting interface, and the test connecting line of display screen tester accesses test interface, display screen connecting interface and
Connection terminal is laid between test interface；Electric cylinders are connect with connection terminal, for surveying in the end for receiving display screen tester
After examination instruction, driving electric cylinders separate connection terminal with display screen connecting interface or test interface.
As seen through the above description of the embodiments, those skilled in the art can be understood that the application can
It realizes by means of software and necessary general hardware platform.Based on this understanding, the technical solution essence of the application
On in other words the part that contributes to existing technology can be embodied in the form of software products, the computer software product
It can store in storage medium, such as ROM/RAM, magnetic disk, CD, including some instructions are used so that a computer equipment
(can be personal computer, server or the network equipment etc.) executes the certain of each embodiment of the application or embodiment
Partial method.
All the embodiments in this specification are described in a progressive manner, same and similar portion between each embodiment
Dividing may refer to each other, and each embodiment focuses on the differences from other embodiments.Especially for system reality
For applying example, since it is substantially similar to the method embodiment, so being described relatively simple, related place is referring to embodiment of the method
Part explanation.
The application can be used in numerous general or special purpose computing system environments or configuration.Such as: personal computer, service
Device computer, handheld device or portable device, laptop device, multicomputer system, microprocessor-based system, top set
Box, programmable consumer-elcetronics devices, network PC, minicomputer, mainframe computer, including any of the above system or equipment
Distributed computing environment etc..
Obviously, those skilled in the art should be understood that each module of the above invention or each step can be with general
Computing device realize that they can be concentrated on a single computing device, or be distributed in multiple computing devices and formed
Network on, optionally, they can be realized with the program code that computing device can perform, it is thus possible to which they are stored
Be performed by computing device in the storage device, perhaps they are fabricated to each integrated circuit modules or by they
In multiple modules or step be fabricated to single integrated circuit module to realize.In this way, the present invention is not limited to any specific
Hardware and software combines.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (14)
1. a kind of test method of display screen characterized by comprising
Display screen tester obtains the standard parameter of multiple components of display screen to be tested；
The display screen tester acquires the test data of the multiple component of the display screen to be tested, the test number
According to the height electricity for the infrared receiving terminal for including: the reference voltage value of the display screen to be tested, the display screen to be tested
Level values, high/low currents value and decoding result, the LED current value of the display screen to be tested, charactron current value；
Each test data is compared the display screen tester respectively with corresponding standard parameter, obtains test result；
Wherein, the display screen tester is also used to that remote controler is driven to emit infrared remote instruction to the display screen to be tested
Infrared receiving terminal, and receive the infrared remote instruction of infrared receiving terminal forwarding, to the infrared remote instruction into
Row decoding obtains the decoding result；
Wherein, the display screen tester is connect by test fixture with the display screen to be tested, wherein the test work
Dress includes:
At least one set of display screen connecting interface and test interface, wherein described in the connecting line access of the display screen to be tested
The test connecting line of display screen connecting interface, the display screen tester accesses the test interface, and the display screen connects
Connection terminal is laid between mouth and test interface；
Electric cylinders are connect with the connection terminal, for driving after the end test instruction for receiving the display screen tester
It moves the electric cylinders and separates the connection terminal with the display screen connecting interface or test interface.
2. the method according to claim 1, wherein display screen tester obtains the multiple of display screen to be tested
The step of standard parameter of component includes:
Conventional display and the display screen tester are communicatively coupled；
The learning functionality for starting the display screen tester acquires the supplemental characteristic conduct of multiple components of the conventional display
The standard parameter, wherein the standard parameter includes: standard voltage value, standard low and high level value, the standard of infrared receiving terminal
High/low currents value and standard solution code value, standard LED current value, the standard current value of charactron.
3. according to the method described in claim 2, it is characterized in that, the learning functionality for starting the display screen tester it
Before, the method also includes: the upper limit float value and lower limit float value of standard parameter are set, so that the standard parameter is according to institute
It states upper limit float value or the lower limit float value is adjusted.
4. according to the method in claim 2 or 3, which is characterized in that the display screen tester by each test data with
The step of corresponding standard parameter is compared respectively, obtains test result includes following any one or more schemes:
The reference voltage value of the display screen to be tested is compared with the standard voltage value, if the reference voltage
The difference of value and the standard voltage value is within the first preset range, then the test result is the display to be tested
Screen is in open-circuit condition, and otherwise the test result is that the display screen to be tested is in short-circuit condition；
The low and high level value of the infrared receiving terminal of the display screen to be tested and high/low currents value infrared are connect with described respectively
The standard low and high level value and standard high/low currents value for receiving head are compared, if the low and high level value and standard height
The level difference value of level value is within the second preset range, and the electricity of the high/low currents value and the standard high/low currents value
Stream difference is within third preset range, then the test result is to verify the infrared receiving terminal of the display screen to be tested
In normal operating conditions, otherwise the test result is that the infrared receiving terminal for verifying the display screen to be tested has event
Barrier；
The LED current value of the display screen to be tested is compared with the standard LED current value, if the LED is electric
The difference of flow valuve and the standard LED current value is within the 4th preset range, then the test result is described to be tested
The LED particle of display screen be in normal operating conditions, otherwise the test result is LED of the display screen to be tested
There are failures for grain；
The current value of the charactron of the display screen to be tested is compared with the standard current value, if the number
The difference of the standard current value of pipe and the standard current value is within the 5th preset range, then the test result is described
The charactron of display screen to be tested is in normal operating conditions, and otherwise the test result is the display screen to be tested
There are failures for charactron.
5. according to the method described in claim 4, it is characterized in that, in the infrared receiving terminal for verifying the display screen to be tested
Before normal operating conditions, the method also includes:
The display screen tester driving remote controler emits the infrared receiver of infrared remote instruction to the display screen to be tested
Head；
The infrared remote instruction is transmitted to the governor circuit of the display screen tester by the infrared receiving terminal；
The governor circuit is decoded the infrared remote instruction, and the obtained decoding result and the standard are decoded
Value is compared, if the decoding result is identical as the standard decoding, verifies the infrared of the display screen to be tested
It receives head and is in normal operating conditions, otherwise verifying the infrared receiving terminal of the display screen to be tested, there are failures.
6. a kind of test macro of display screen characterized by comprising
Display screen to be tested；
Display screen tester is connect with the display screen to be tested, for acquiring multiple portions of the display screen to be tested
The test data of part, and obtain the standard parameter of multiple components of the display screen to be tested, by each test data with it is right
The standard parameter answered is compared respectively, obtains test result；
Wherein, test data described in the display screen tester includes: the reference voltage value, described of the display screen to be tested
Low and high level value, high/low currents value and the decoding result of the infrared receiving terminal of display screen to be tested, the display to be tested
The current value of the LED current value of screen, charactron；
Wherein, the display screen tester further include:
Driving device, for driving remote controler to emit the infrared receiving terminal of infrared remote instruction to the display screen to be tested；
Wherein, the display screen tester is also used to receive the infrared remote instruction of the infrared receiving terminal forwarding, to institute
Infrared remote instruction is stated to be decoded to obtain the decoding result；
Wherein, the display screen tester is connect by test fixture with the display screen to be tested, wherein the test work
Dress includes:
At least one set of display screen connecting interface and test interface, wherein described in the connecting line access of the display screen to be tested
The test connecting line of display screen connecting interface, the display screen tester accesses the test interface, and the display screen connects
Connection terminal is laid between mouth and test interface；
Electric cylinders are connect with the connection terminal, for driving after the end test instruction for receiving the display screen tester
It moves the electric cylinders and separates the connection terminal with the display screen connecting interface or test interface.
7. system according to claim 6, which is characterized in that the display screen tester includes:
Memory, for saving by acquiring the standard shows after the learning functionality for starting the display screen tester
Screen multiple components supplemental characteristic obtained from the standard parameter, wherein the standard parameter include: standard voltage value,
Standard low and high level value, standard high/low currents value and the standard solution code value of infrared receiving terminal, standard LED current value, charactron
Standard current value.
8. system according to claim 7, which is characterized in that the display screen tester includes:
Reference voltage Acquisition Circuit, for acquiring the reference voltage value of the display screen to be tested；
Infrared receiving terminal detection circuit, for acquiring the low and high level value and height of the infrared receiving terminal of the display screen to be tested
Low current value；
LED Acquisition Circuit, for acquiring the LED current of the display screen to be tested；
Charactron Acquisition Circuit, the current value of the charactron for acquiring the display screen to be tested；
Governor circuit, it is electric with the reference voltage Acquisition Circuit, the infrared receiving terminal detection circuit, LED acquisition respectively
Road is connected with the charactron Acquisition Circuit, for by the reference voltage value of the display screen to be tested and the normal voltage
Value is compared, if the difference of the reference voltage value and the standard voltage value is within the first preset range, institute
Stating test result is that the display screen to be tested is in open-circuit condition, and otherwise the test result is the display to be tested
Screen is in short-circuit condition；
The governor circuit is also used to the low and high level value and high/low currents of the infrared receiving terminal of the display screen to be tested
Value is compared with the standard low and high level value of the infrared receiving terminal and standard high/low currents value respectively, if the height is electric
The level difference value of level values and the standard low and high level value is within the second preset range, and the high/low currents value with it is described
The current differential of standard high/low currents value is within third preset range, then the test result is that verifying is described to be tested
The infrared receiving terminal of display screen is in normal operating conditions, and otherwise the test result is the verifying display screen to be tested
There are failures for infrared receiving terminal；
The governor circuit is also used to carry out the LED current value of the display screen to be tested and the standard LED current value
Compare, if the difference of the LED current value and the standard LED current value is within the 4th preset range, the survey
Test result be the display screen to be tested LED particle be in normal operating conditions, otherwise the test result be described in
There are failures for the LED particle of the display screen of test；
The governor circuit be also used to by the current value of the charactron of the display screen to be tested and the standard current value into
Row compares, if the difference of the standard current value of the charactron and the standard current value is within the 5th preset range,
Then the test result is that the charactron of the display screen to be tested is in normal operating conditions, and otherwise the test result is
There are failures for the charactron of the display screen to be tested.
9. system according to claim 8, which is characterized in that the governor circuit is also used to the decoding knot that will be obtained
Fruit is compared with the standard solution code value, if the decoding result is identical as the standard decoding, verifies described to be measured
The infrared receiving terminal of the display screen of examination is in normal operating conditions, otherwise verifies the infrared receiving terminal of the display screen to be tested
There are failures.
10. a kind of test device of display screen characterized by comprising
Obtain module, the standard parameter of multiple components for obtaining display screen to be tested；
Acquisition module, the test data of the multiple component for acquiring the display screen to be tested, the test data
Include: the reference voltage value of the display screen to be tested, the display screen to be tested infrared receiving terminal low and high level
Value, high/low currents value and decoding result, the LED current value of the display screen to be tested, charactron current value；
Test module obtains test result for each test data to be compared respectively with corresponding standard parameter；
Wherein, described device further include: drive module, for driving remote controler to emit infrared remote instruction to described to be tested
The infrared receiving terminal of display screen；
Receiving module, for receiving the infrared remote instruction of the infrared receiving terminal forwarding；
Decoder module obtains the decoding result for being decoded to the infrared remote instruction；
Wherein, the display screen tester is connect by test fixture with the display screen to be tested, wherein the test work
Dress includes:
At least one set of display screen connecting interface and test interface, wherein described in the connecting line access of the display screen to be tested
The test connecting line of display screen connecting interface, the display screen tester accesses the test interface, and the display screen connects
Connection terminal is laid between mouth and test interface；
Electric cylinders are connect with the connection terminal, for driving after the end test instruction for receiving the display screen tester
It moves the electric cylinders and separates the connection terminal with the display screen connecting interface or test interface.
11. device according to claim 10, which is characterized in that the acquisition module includes:
Communication module, for conventional display and the display screen tester to be communicatively coupled；
Sub- acquisition module acquires multiple portions of the conventional display for starting the learning functionality of the display screen tester
The supplemental characteristic of part is as the standard parameter, wherein the standard parameter includes: the mark of standard voltage value, infrared receiving terminal
Quasi- low and high level value, standard high/low currents value and standard solution code value, standard LED current value, the standard current value of charactron.
12. device according to claim 11, which is characterized in that the learning functionality for starting the display screen tester it
Before, the test device is also used to be arranged the upper limit float value and lower limit float value of standard parameter, so that the standard parameter is pressed
It is adjusted according to the upper limit float value or the lower limit float value.
13. device according to claim 11 or 12, which is characterized in that the test module include it is following any one or
Multiple functional modules:
Open-short circuit module, for comparing the reference voltage value of the display screen to be tested with the standard voltage value
Compared with, if the difference of the reference voltage value and the standard voltage value is within the first preset range, the test knot
Fruit is that the display screen to be tested is in open-circuit condition, and otherwise the test result is that the display screen to be tested is in short
Line state；
Infrared receiving terminal test module, for by the low and high level value and height of the infrared receiving terminal of the display screen to be tested
Current value is compared with the standard low and high level value of the infrared receiving terminal and standard high/low currents value respectively, if the height
The level difference value of low level value and the standard low and high level value be within the second preset range, and the high/low currents value and
The current differential of the standard high/low currents value is within third preset range, then the test result is that verifying is described to be measured
The infrared receiving terminal of the display screen of examination is in normal operating conditions, and otherwise the test result is the verifying display to be tested
There are failures for the infrared receiving terminal of screen；
LED particle test module, for by the LED current value of the display screen to be tested and the standard LED current value into
Row compares, described if the difference of the LED current value and the standard LED current value is within the 4th preset range
Test result is that the LED particle of the display screen to be tested is in normal operating conditions, and otherwise the test result is described
There are failures for the LED particle of display screen to be tested；
Charactron test module, for by the current value of the charactron of the display screen to be tested and the standard current value into
Row compares, if the difference of the standard current value of the charactron and the standard current value is within the 5th preset range,
Then the test result is that the charactron of the display screen to be tested is in normal operating conditions, and otherwise the test result is
There are failures for the charactron of the display screen to be tested.
14. device according to claim 13, which is characterized in that in the infrared receiver for verifying the display screen to be tested
Head is before normal operating conditions, described device further include:
Telecommand test module, for the obtained decoding result to be compared with the standard solution code value, if institute
State that decoding result is identical as the standard decoding, then the infrared receiving terminal for verifying the display screen to be tested, which is in, to be worked normally
State, otherwise verifying the infrared receiving terminal of the display screen to be tested, there are failures.
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| CN107610628B (en) * | 2017-10-26 | 2020-12-04 | 福州海天微电子科技有限公司 | LED display unit board detection device and method |
| CN107909952A (en) * | 2017-12-06 | 2018-04-13 | 广东欧珀移动通信有限公司 | Detect the method and gauge of display screen |
| CN108646118A (en) * | 2018-06-26 | 2018-10-12 | 格力电器（武汉）有限公司 | The air-conditioner display panel test fixture, method, apparatus, storage medium and test system |
| CN108877609A (en) * | 2018-07-09 | 2018-11-23 | 格力电器（武汉）有限公司 | A kind of test desk of automatic detection display function |
| CN109059198A (en) * | 2018-07-23 | 2018-12-21 | 珠海格力电器股份有限公司 | Equipment automatic engineering adjustment method, device, system and computer equipment |
| CN109741698B (en) * | 2019-01-04 | 2019-12-03 | 精电(河源)显示技术有限公司 | Show data flaw detection method and device |
| CN110794333B (en) * | 2019-11-25 | 2022-03-18 | 伯恩光学(惠州)有限公司 | LCD short circuit detection circuit and detection method |
| CN112344992A (en) * | 2020-10-30 | 2021-02-09 | 重庆军通汽车有限责任公司 | Special tester for decontamination vehicle |
| CN115083320B (en) * | 2022-07-21 | 2022-11-15 | 深圳益实科技有限公司 | Display control device with diagnosis function and diagnosis method |
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