CN102592530A - Detecting equipment of liquid crystal display module - Google Patents
Detecting equipment of liquid crystal display module Download PDFInfo
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- CN102592530A CN102592530A CN201210050632XA CN201210050632A CN102592530A CN 102592530 A CN102592530 A CN 102592530A CN 201210050632X A CN201210050632X A CN 201210050632XA CN 201210050632 A CN201210050632 A CN 201210050632A CN 102592530 A CN102592530 A CN 102592530A
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Abstract
The invention belongs to the technical field of LCD display and discloses a piece of detecting equipment of a liquid crystal display module, which comprises a working platform, and a module splicing device, a detecting unit and a processor, which are installed on the working platform, wherein the module splicing device is used for splicing a liquid crystal display module to be detected; the detecting unit is electrically connected with the splicing module and is used for detecting and outputting parameter signals of items to be detected of the liquid crystal display module; and the processor is used for processing the received corresponding parameter signals and comparing the processed data with standard data, and the obtained comparison result is used for further processing. According to the invention, the testing equipment is installed on the same working platform, the standard values of the parameters are preset, and whether the testing results exceed the preset standard values can be judged by the comparison of the processor during the testing. The whole detecting process reduces an intermediate step of connecting the equipment, and the module to be detected is inserted in the module splicing device for testing, so that errors caused by artificial factors in the test are avoided.
Description
Technical field
The present invention relates to LCD display technique field, be specifically related to a kind of checkout equipment of LCD MODULE.
Background technology
Test for the electric property of different LCD MODULEs mainly contains the following aspects: WV (VDD), working current (IDD), backlight driving voltage (VBL), backlight drive electric current (IBL), liquid crystal drive voltage (VLCD), common level voltage (VCOM), triode cut-in voltage (VGH) and triode are closed voltage parameters such as (VGL).There is following problem in existing detection mode: 1, when test, need test many group voltage and currents, this just needs a plurality of multimeters, because testing apparatus is many, so be easy to produce error; 2, the characterisitic parameter of LCD MODULE driving changes along with temperature variation; Operating personnel will carry out high low-temperature test and adjust the parameter under the different temperatures through connecting a series of equipment; During this time because the influence of factor such as artificial is easy to cause measurement result incorrect; Need remeasure inefficiency.
Summary of the invention
In view of this, the present invention provides a kind of checkout equipment of LCD MODULE, owing to be provided with a plurality of TCH test channels, the multiple electric property parameter that can on an equipment, test brilliant display module reduces the error that artificial connection error causes.
For solving above technical matters; Technical scheme of the present invention is; A kind of checkout equipment of LCD MODULE; Comprise workbench and be installed in module plug assembly, detecting unit and the processor on the workbench, wherein: said module plug assembly is used to the LCD MODULE to be detected of pegging graft; Said detecting unit is electrically connected to said module plug assembly, is used to detect and export the parameter signal of each project to be measured of LCD MODULE; Said processor is handled the relevant parameter signal that receives, and data after will handling and normal data comparison, and the gained comparative result is in order to carry out subsequent treatment.
Said detecting unit comprises the voltage detecting passage that has voltage control circuit, the current detecting passage that has current-sensing circuit and the temperature detection passage that is provided with temperature sensor.
Be connected to analog to digital converter between said detecting unit and the processor.
Said workbench is provided with display, and this display is electrically connected to said processor, is used to show accordingly result.
Also be provided with alarm on the said workbench, this alarm is electrically connected with processor, reports to the police when the relevant parameter that characterizes LCD MODULE to be measured at comparative result exceeds canonical parameter.
Said alarm output sound, light, electricity or vibration signal.
Also be provided with the control panel with some control buttons on the said workbench, this control panel is electrically connected with said processor, is used for rise/the stopping of control detection process, the selection of project to be measured and the input of canonical parameter.
Said processor is circumscribed with communication unit, and this communication unit is electrically connected with external unit and interaction data.
Said communication unit is the rs-232 standard interface, is used for carrying out serial communication with exterior PC.
Said checkout equipment also comprises storer, and this storer is electrically connected with said processor, is used for the read/write testing result.
Compared with prior art; The present invention is installed in testing apparatus on the same worktable; Preset the standard value of each parameter, in test process,, can judge whether test result exceeds preset standard value through the comparison of processor; Show through follow-up handling procedure again or report to the police, make the staff clear and accurate know test result.Whole testing process has reduced the step of middle connection device, only need module insert module plug assembly to be measured be tested getting final product, and has avoided the error that human factor causes in the test process.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is the syndeton synoptic diagram of each module among the present invention;
Fig. 3 is the connection synoptic diagram of the present invention's each module when carrying out temperature detection;
Fig. 4 is the circuit diagram of temperature detection passage among Fig. 3;
Fig. 5 is the connection synoptic diagram of the present invention's each module when carrying out voltage tester;
Fig. 6 is the circuit diagram of voltage detecting passage among Fig. 5;
Fig. 7 is the connection synoptic diagram of the present invention's each module when carrying out testing current;
Fig. 8 is the circuit diagram of current detecting passage among Fig. 7;
Fig. 9 is the circuit diagram of analog to digital converter.
Among the figure: 1, workbench, 2, the module plug assembly, 3, detecting unit, 4, display, 5, control panel, 6, alarm, 7, power switch, 8, temperature sensor, 9, voltage monitor, 10, current inductor.
Embodiment
In order to make those skilled in the art understand technical scheme of the present invention better, the present invention is done further detailed description below in conjunction with accompanying drawing and specific embodiment.
Referring to Fig. 1, a kind of checkout equipment of LCD MODULE comprises workbench 1 and is installed in module plug assembly 2, detecting unit 3 and the processor on the workbench 1.Wherein, detecting unit 3 comprises the voltage detecting passage that has voltage control circuit, the current detecting passage that has current-sensing circuit and the temperature detection passage that is provided with temperature sensor.1 also be provided with display 4 on the workbench, have control panel 5, alarm 6 and the power switch 7 of controlling button.
Referring to Fig. 2, the annexation of each several part is following:
Detecting unit 3 is electrically connected with processor (MPU) through analog to digital converter (ADC), and each item argument to be measured of the first detection of each passage in the detecting unit flows to processor after converting parameter signal to digital signal through analog to digital converter again.Owing to be preset with the standard value of each item argument signal to be measured in the processor, thus behind processor reception relevant parameters signal, can be to the data processing of comparing, the result sends with gained, so that accomplish follow-up work.
Workbench 1 is provided with display 4, and this display 4 is electrically connected to processor, is used for the comparison result of video-stream processor, can let the clear and definite parameter of clearly recognizing each project to be measured of operating personnel, and the comparison through data judges whether to exceed standard.
Also be provided with alarm 6 on the workbench 1, this alarm 6 is electrically connected with processor, reports to the police when the relevant parameter that characterizes LCD MODULE to be measured when the comparative result of processor exceeds canonical parameter.Alarm 6 exportable sound, light, electricity or vibration signal, whether qualified, need not operating personnel and observe display always if can let operating personnel grasp LCD MODULE to be measured more intuitively, reduced working strength.
Also be provided with the control panel 5 with some control buttons on the workbench 1, this control panel 5 is electrically connected with processor, is used to control rise/the stopping of whole testing process, the selection of project to be measured and input of canonical parameter etc.Also comprise storer (figure is output not) on the workbench 1, this storer is electrically connected with processor, is used for the read/write testing result.
Processor is circumscribed with communication unit (be preferably the rs-232 standard interface, be used for carrying out serial communication with exterior PC), and this communication unit is electrically connected with external unit (like the PC terminal) and interaction data.Thus, can realize that measured parameter signal transmits at a distance, make things convenient for crossing of data between each department.
Be without loss of generality, voltage, the galvanometer temperature parameter with frequent test is example below, and each sense channel in the detecting unit is elaborated:
Referring to Fig. 3 and Fig. 4; Temperature sensor 8 can be thermistor in the temperature detection passage, with the characteristic that temperature variation changes, the voltage of exporting in the circuit is changed through thermistor; Magnitude of voltage under the different temperatures is transported to digital to analog converter; Digital to analog converter is sent to processor after the voltage signal that receives is converted into digital signal, and processor shows the gained result through display after signal is compared again.
Wherein, the model of thermistor can be selected NCP18XH103G03RB for use.
Referring to Fig. 5 and Fig. 6; After voltage controller 9 in the voltage detecting passage carries out electric resistance partial pressure with the voltage of LCD MODULE to be measured; Magnitude of voltage is comprised that WV (VDD), liquid crystal drive voltage voltages such as (VLCD) are transported to digital to analog converter; Digital to analog converter is sent to processor after the voltage signal that receives is transformed position digital signal, and processor shows the gained result through display after signal is compared again.
Referring to Fig. 7 and Fig. 8; Be designed with several roads current monitoring circuit through current inductor 10 in the current detecting passage; These circuit can carry out the magnitude of voltage that the adjustment of different multiples obtains being fit to according to the difference of load current, and the voltage of adjusting flows to digital to analog converter, and digital to analog converter is sent to processor after the voltage signal that receives is transformed position digital signal; Processor shows the gained result through display after signal is compared again.
Wherein, current inductor 10 used models can be MP88110.
Voltage control circuit among the present invention and current-sensing circuit can carry out the detection and the judgement of electric current and voltage value under the different temperatures through matching with temperature sensing circuit.
Referring to Fig. 9, be a kind of circuit diagram of common digital to analog converter, it can convert the magnitude of voltage that obtains into and flow to processor after the digital signal and handle.
Principle of work of the present invention is to turn on the power switch 7, through control panel 5 control whole test process.Concrete workflow is referring to table 1; Grafting LCD MODULE to be tested on module plug assembly 2; Sense channel through corresponding in the detecting unit 3 detects the corresponding item argument of LCD MODULE; Testing result is through the processing of analog to digital converter, and parameter sends to processor with the form of digital signal, processor with the parameter signal that receives through with preset parameter and standard comparison; Obtain the LCD MODULE of surveying result whether up to standard, this result is shown to operating personnel intuitively through display 4 and alarm 6.Because processor also is provided with communication unit, external unit sends through the signal of communication unit, can at a distance net result carried out can reaching the purpose of remote monitoring alternately.
Table 1 is mainly treated the project testing process and the port selection table of comparisons
Only be preferred implementation of the present invention below, should be pointed out that above-mentioned preferred implementation should not be regarded as limitation of the present invention, protection scope of the present invention should be as the criterion with claim institute restricted portion.For those skilled in the art, do not breaking away from the spirit and scope of the present invention, can also make some improvement and retouching, these improvement and retouching also should be regarded as protection scope of the present invention.
Claims (10)
1. the checkout equipment of a LCD MODULE is characterized in that, comprises workbench and is installed in module plug assembly, detecting unit and the processor on the workbench, and wherein: said module plug assembly is used to the LCD MODULE to be detected of pegging graft; Said detecting unit is electrically connected to said module plug assembly, is used to detect and export the parameter signal of each project to be measured of LCD MODULE; Said processor is handled the relevant parameter signal that receives, and data after will handling and normal data comparison, and the gained comparative result is in order to carry out subsequent treatment.
2. checkout equipment as claimed in claim 1 is characterized in that, said detecting unit comprises the voltage detecting passage that has voltage control circuit, the current detecting passage that has current-sensing circuit and the temperature detection passage that is provided with temperature sensor.
3. checkout equipment as claimed in claim 1 is characterized in that, is connected to analog to digital converter between said detecting unit and the said processor.
4. checkout equipment as claimed in claim 1 is characterized in that said workbench is provided with display, and this display is electrically connected to said processor, is used to show accordingly result.
5. checkout equipment as claimed in claim 1 is characterized in that, also is provided with alarm on the said workbench, and this alarm is electrically connected with said processor, reports to the police when the relevant parameter that characterizes LCD MODULE to be measured at comparative result exceeds canonical parameter.
6. checkout equipment as claimed in claim 5 is characterized in that, said alarm output sound, light, electricity or vibration signal.
7. checkout equipment as claimed in claim 1; It is characterized in that; Also be provided with the control panel with some control buttons on the said workbench, this control panel is electrically connected with said processor, is used for rise/the stopping of control detection process, the selection of project to be measured and the input of canonical parameter.
8. checkout equipment as claimed in claim 1 is characterized in that said processor is circumscribed with communication unit, and this communication unit is electrically connected with external unit and interaction data.
9. checkout equipment as claimed in claim 8 is characterized in that said communication unit is the rs-232 standard interface, is used for carrying out serial communication with exterior PC.
10. like each described checkout equipment of claim 1～9, it is characterized in that also comprise storer, this storer is electrically connected with said processor, is used for the read/write testing result.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210050632XA CN102592530A (en) | 2012-02-29 | 2012-02-29 | Detecting equipment of liquid crystal display module |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210050632XA CN102592530A (en) | 2012-02-29 | 2012-02-29 | Detecting equipment of liquid crystal display module |
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| CN102592530A true CN102592530A (en) | 2012-07-18 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103746864A (en) * | 2013-12-19 | 2014-04-23 | 广西科技大学 | Intelligent aging detection method based on frequency shift code sending device |
| CN104360185A (en) * | 2014-10-30 | 2015-02-18 | 惠州市创仕实业有限公司 | LCM (liquid crystal module) electric measurement function expansion device |
| CN107677913A (en) * | 2017-11-20 | 2018-02-09 | 深圳同兴达科技股份有限公司 | A kind of automatic system for detecting electrical property of LCM |
| CN108873411A (en) * | 2018-07-10 | 2018-11-23 | 中航华东光电有限公司 | Promote the test macro of LCD MODULE test efficiency |
| CN112286753A (en) * | 2019-07-22 | 2021-01-29 | 腾讯科技（深圳）有限公司 | Method, device, server and storage medium for testing image processing accuracy |
| CN112327525A (en) * | 2020-11-17 | 2021-02-05 | 深圳同兴达科技股份有限公司 | System and method for detecting liquid crystal display module |
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| CN201514750U (en) * | 2009-09-29 | 2010-06-23 | 深圳市国显科技有限公司 | Multifunctional liquid crystal display (LCD) module testing system |
| CN201804530U (en) * | 2010-09-10 | 2011-04-20 | 京东方科技集团股份有限公司 | Liquid crystal display panel detecting device |
| CN202034003U (en) * | 2011-03-17 | 2011-11-09 | 华容电子（昆山）有限公司 | Mainboard testing controller for liquid crystal display and liquid crystal television |
| CN202084271U (en) * | 2010-09-08 | 2011-12-21 | 佛山市进步科技有限公司 | Driver board detecting system for LCD TV and LCD |
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| KR100777702B1 (en) * | 2001-06-04 | 2007-11-21 | 삼성전자주식회사 | Flat panel display and driving method thereof |
| CN201514750U (en) * | 2009-09-29 | 2010-06-23 | 深圳市国显科技有限公司 | Multifunctional liquid crystal display (LCD) module testing system |
| CN202084271U (en) * | 2010-09-08 | 2011-12-21 | 佛山市进步科技有限公司 | Driver board detecting system for LCD TV and LCD |
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Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103746864A (en) * | 2013-12-19 | 2014-04-23 | 广西科技大学 | Intelligent aging detection method based on frequency shift code sending device |
| CN104360185A (en) * | 2014-10-30 | 2015-02-18 | 惠州市创仕实业有限公司 | LCM (liquid crystal module) electric measurement function expansion device |
| CN107677913A (en) * | 2017-11-20 | 2018-02-09 | 深圳同兴达科技股份有限公司 | A kind of automatic system for detecting electrical property of LCM |
| CN108873411A (en) * | 2018-07-10 | 2018-11-23 | 中航华东光电有限公司 | Promote the test macro of LCD MODULE test efficiency |
| CN112286753A (en) * | 2019-07-22 | 2021-01-29 | 腾讯科技（深圳）有限公司 | Method, device, server and storage medium for testing image processing accuracy |
| CN112286753B (en) * | 2019-07-22 | 2023-03-17 | 腾讯科技（深圳）有限公司 | Method, device, server and storage medium for testing image processing accuracy |
| CN112327525A (en) * | 2020-11-17 | 2021-02-05 | 深圳同兴达科技股份有限公司 | System and method for detecting liquid crystal display module |
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Application publication date: 20120718 |