CN104570411B - Multistation lighting AOI system - Google Patents
Multistation lighting AOI system Download PDFInfo
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- CN104570411B CN104570411B CN201310487891.3A CN201310487891A CN104570411B CN 104570411 B CN104570411 B CN 104570411B CN 201310487891 A CN201310487891 A CN 201310487891A CN 104570411 B CN104570411 B CN 104570411B
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- lighting
- liquid crystal
- crystal display
- display panel
- detected
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Classifications
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/1306—Details
- G02F1/1309—Repairing; Testing
Abstract
The present invention relates to automated optical vision-based detection, technical field of image processing, and in particular to a kind of multistation lighting AOI system.The lighting AOI system includes：Lighting jig module：Including the operating desk for housing multiple liquid crystal display panels to be detected；Image collection module：It is arranged on above the lighting jig, for the lighting picture capture to the liquid crystal display panel to be detected, and sends to image industry control unit；Image industry control unit：It is connected with described image acquisition module, for analyzing the lighting picture, obtains defects detection result.The present invention can carry out defects detection simultaneously to multiple liquid crystal display panels to be detected, therefore the detection efficiency and detection speed of lighting AOI system can be lifted, save defects detection required time and manpower, the automaticity of lighting AOI system is improved, the needs especially suitable for the production of modern liquid crystal display panel industry.
Description
Technical field
The present invention relates to automated optical vision-based detection, technical field of image processing, and in particular to a kind of multistation lighting AOI
（Automatic Optic Inspection, automatic optics inspection）Defect detecting system.
Background technology
Thin Film Transistor-LCD（Thin Film Transistor-Liquid Crystal Display, TFT-
LCD）Due to there is frame stabilization, image fidelity, eliminate radiation, save space and save energy consumption, it is widely used
In the electronic products such as TV, mobile phone, display, the leading position of plane display field has been occupied.
Liquid crystal display panel lighting AOI system, it is weight essential in the management of the modern liquid crystal display panel quality of production
Want link.Lighting AOI system is primarily adapted for use in Cell（It is filling）Section and Module（Module）The liquid crystal display panel lighting of section is drawn
Face quality testing, mainly detecting mura（It is uneven）、particle（Particulate）And foreign matter etc., so as to lift the good of product
Rate.However as the continuous improvement of Automation of Manufacturing Process degree, the requirement to the precision and speed of liquid crystal panel quality testing
More and more higher, high accuracy, at high speed, operation is simple, the lighting AOI system of strong applicability is increasingly becoming the production of modern liquid crystal panel
The main trend of demand.
The content of the invention
（One）Technical problems to be solved
Simple, strong applicability multistation lighting AOI system is operated it is an object of the invention to provide a kind of, so as to enter one
The detection efficiency and detection speed of step lifting lighting AOI system, save defects detection required time and manpower.
（Two）Technical scheme
Technical solution of the present invention is as follows：
A kind of multistation lighting AOI system, including：
Lighting jig module：Including the operating desk for housing multiple liquid crystal display panels to be detected；
Image collection module：It is arranged on above the lighting jig, for the point to the liquid crystal display panel to be detected
Lamp picture capture, and send to image industry control unit；
Image industry control unit：It is connected with described image acquisition module, for analyzing the lighting picture, obtains and lack
Fall into testing result.
Preferably, in addition to：
Transport module：For the liquid crystal display panel to be detected to be transported into operating desk or by the liquid crystal to be detected
Display panel is walked from operating desk transhipment.
Preferably, in addition to：
Control and the communication server：For being shown and managed to testing result, detection process is controlled and
Realize the communication inside the detecting system.
Preferably, the lighting jig module includes at least two operating desks；Each operating desk can at least accommodate
Two liquid crystal display panels to be detected.
Preferably, the lighting jig inside modules are additionally provided with polishing unit, for for the liquid crystal display to be detected
Panel provides radiation source.
Preferably, described image acquisition module includes：
For the camera unit shot to the liquid crystal display panel to be detected；
For carrying the camera support unit of the camera unit；
And for adjusting the camera adjustment unit of the camera unit present position.
Preferably, the transhipment module includes：
Delivery unit, for transmitting the liquid crystal display panel to be detected and entering to the liquid crystal display panel to be detected
Row positioning and adjustment；
Manipulator Transportation unit, for being carried to or moving away from the operating desk by the liquid crystal display panel to be detected.
Preferably, the manipulator unit includes at least three co-operating manipulators.
Preferably, in addition to：
The printing device being connected with the control and the communication server.
Preferably, in addition to：
The UPS uninterrupted power sources being connected respectively with described image industry control unit and control and the communication server.
（Three）Beneficial effect
The multistation lighting AOI system that the embodiment of the present invention is provided, mainly include lighting jig module, image obtains mould
Block and image industry control unit, lighting jig module include being used for the operating desk for housing multiple liquid crystal display panels to be detected, with
Traditional lighting AOI system is compared, and can carry out defects detection to multiple liquid crystal display panels to be detected simultaneously with single, therefore can
To lift the detection efficiency of lighting AOI system and detection speed, defects detection required time and manpower are saved, is improved
The automaticity of lighting AOI system, the needs especially suitable for the production of modern liquid crystal display panel industry.
Brief description of the drawings
Fig. 1 is the structural representation of multistation lighting AOI system in the embodiment of the present invention.
In figure：1：Manipulator Transportation unit；2：Image collection module；3：Lighting jig module；4：Polishing unit；5：Image
Industry control unit；6：Control and the communication server；7：UPS uninterrupted power sources；8：Printing device.
Embodiment
With reference to the accompanying drawings and examples, the embodiment of the present invention is described further.Following examples are only
For illustrating the present invention, but it is not limited to the scope of the present invention.
A kind of integration is provided in the present embodiment to be automatically brought into operation, and without manual intervention in testing process, is automatically performed AOI
Defects detection and detection efficiency and the faster multistation lighting AOI system of detection speed.The multistation lighting AOI system mainly wraps
Include：
Lighting jig module：Including multiple operating desks for being used to house liquid crystal display panel to be detected；
Image collection module：It is arranged on above the lighting jig, for the point to the liquid crystal display panel to be detected
Lamp picture capture, and send to image industry control unit；
Image industry control unit：It is connected with described image acquisition module, for analyzing the lighting picture, obtains and lack
Fall into testing result.
Compared with traditional lighting AOI system, the lighting AOI system provided in the present embodiment can be treated with single to multiple
Detection liquid crystal display panel carries out defects detection simultaneously, therefore can lift the detection efficiency and detection speed of lighting AOI system
Degree, defects detection required time and manpower are saved, improve the technological level and efficiency of liquid crystal panel quality testing, especially
Suitable for the needs of modern liquid crystal display panel industry production.With reference to Fig. 1 to the multistation lighting AOI systems in the present embodiment
System is further detailed.
As shown in fig. 1, the multistation lighting AOI system provided in the present embodiment also include transhipment module, control and
Communication server 6 etc.；Wherein, module is transported to be used to liquid crystal display panel to be detected being transported to operating desk or by liquid to be detected
LCD panel from operating desk transhipment walk, control and the communication server 6 be used for testing result is shown and managed, to detection
Process is controlled and realized the communication inside detecting system.
Above-mentioned lighting jig module 3 includes at least two operating desks；Each operating desk can at least accommodate two it is to be detected
Liquid crystal display panel, i.e. lighting AOI system can realize the detection at least four liquid crystal display panels with single；It is also, each
The fixture of operating desk possesses detachable and changes function, i.e. lighting AOI system can be at least realized to a kind of liquid crystal display of size
Panel carries out four station defects detections.
In the present embodiment, polishing unit 4 is additionally provided with inside lighting jig module 3, operating desk is placed on for irradiating
Liquid crystal display panel to be detected, as liquid crystal display panel to be detected provides radiation source.
Lighting jig module 3 and polishing unit 4 therein, view data is provided for following image collection modules 2
Source.
In the present embodiment, image collection module 2 includes：Camera unit, camera support unit and adjustment unit；Camera list
Member is used to shoot liquid crystal display panel to be detected, and the camera that camera unit is configured can at least realize a kind of liquid of size
LCD panel detects；Camera support unit is used to carry camera unit；Adjustment unit is arranged on camera support unit, is used for
Camera unit present position is adjusted, the adjustment of camera unit upright position and various dimensions angle can be achieved.
Image industry control unit 5 is connected with image collection module 2, for analyzing the lighting picture, obtains defect
Testing result.Image industry control unit 5 is one of core of lighting AOI system, what it was inputted to image collection module 2 first
Image information is pre-processed, remove noise with interference, and isolated from image it is " lofty " point or region, should it is " lofty " point or
Region is just defect point or region, demarcates afterwards and records defect point or region, and according to algorithmic rule, to defect point or area
Domain carries out kind judging；Meanwhile based on industry ethernet by defect information be transferred to control and the communication server 6, by control and
Defective data is managed the communication server 6 and real-time display.
Further, above-mentioned transhipment module includes delivery unit and Manipulator Transportation unit 1；Delivery unit is used to lack
Fall into detection process, transmit liquid crystal display panel to be detected and positioning action and adjustment are carried out to liquid crystal display panel to be detected
Operation, such as liquid crystal display panel are handled by a robotic arm unit 1 and carry the initial alignment after entering lighting AOI system, position liquid
The orientation of LCD panel and progress depth of parallelism adjustment etc., ensure that Manipulator Transportation unit 1 carries liquid crystal display panel to point
Film releasing orientation meets lighting requirement with the depth of parallelism during operating desk in lamp tool module 3.Manipulator Transportation unit 1, for by institute
State liquid crystal display panel to be detected and be carried to or move away from the operating desk, in the present embodiment, manipulator unit includes at least three
Individual co-operating manipulator, it is respectively used to carry liquid crystal display panel and arrives each position, such as initial positioning table, operating desk, with
And for liquid crystal display panel to be moved away from into operating desk.
Manipulator Transportation unit 1 and delivery unit cooperative cooperating, complete to turn in defects of liquid crystal display panel detection process
Fortune operation, such as：Liquid crystal display panel system input, output are carried and process is carried etc., during ensureing system detectio, without
Manual intervention, full-automatic detection.
Control and the communication server 6, the image analysis result of the transmission of image industry control unit 5 is received, testing result is carried out
Display and management, are monitored, while the data and signal communication of whole system are realized based on Ethernet to detection process.Control
System and the CCC that the communication server 6 is lighting AOI system, possessed functional module include technological process, detection
Process and testing result control module, AOI defects detections parameter setting module, system hardware equipment operation condition monitoring module,
Signal control module, TCP/IP industry ethernet communication modules.Wherein, factually border should for client root for detection parameters setup module
With accuracy of detection requirement that sets related production task, need to meet etc.；Technological process, detection process and testing result control mould
Block mainly realizes the control to delivery unit, Manipulator Transportation flow and AOI defect inspection process, and AOI defects detection knots
Management of fruit etc.；Signal control module, the input/output signal of control input output signal, mainly motion control card, including
The switching of lighting jig module lighting picture, manipulator command signal etc..
Further, the lighting AOI system in the present embodiment also includes printing device 8；Printing device 8 is with controlling and communicating
Server 6 connects, for realizing the functions such as report printing.
In addition, the lighting AOI system in the present embodiment also include respectively with image industry control unit 5 and control and communicate
The UPS uninterrupted power sources 7 that server 6 connects, ensure under unexpected powering-off state will not caused by system data lose or other
The problems such as abnormal.For example, a set of UPS uninterrupted power sources 7 are equipped with, to ensure situation of the lighting AOI system in outside power failure
Under can work independently more than 30min.
In actual applications, the lighting AOI system in the present embodiment and LCD board assembly line line can be run.
In actual defects detection process, it is handled by a robotic arm unit 1 and liquid crystal display panel is transported on delivery unit；Delivery unit
Liquid crystal display panel is transmitted to initial alignment platform, the orientation and the depth of parallelism of liquid crystal display panel are adjusted；Again by machine
Liquid crystal display panel after initial alignment is carried in liquid crystal display panel lighting jig module 3 by tool hand handling unit 1, by liquid
LCD panel lighting jig module 3 completes the pressing of liquid crystal display panel and lighting operates, and liquid is completed by image collection module 2
The capture of LCD panel lighting picture；Wherein, polishing unit 4 is that liquid crystal display panel lighting jig module 3 provides illumination；By
Image industry control unit 5 carries out quality analysis to the image of input, and transmits the result to control and the communication server 6；By controlling
And the communication server 6 completes data management and other operations.Multistation lighting AOI system provided in the present embodiment, can be with
For detecting the liquid crystal display panel lighting defect of Cell sections and Module sections, including the electric information defect such as point, line, Mura etc.
Non-electrical class defect, and the surface defect such as impression, scuffing；And integrated operation, i.e., complete liquid crystal by manipulator
Show the film releasing, tabletting, lighting of panel with taking piece, sending piece to operate, at the same there is image to show, flaw labeling, quality analysis and report
The functions such as table printing；It is better than domestic like product in terms of characterization processes, accuracy of detection and automatization level.
To sum up shown, the multistation lighting AOI system provided in the present embodiment can mainly be realized：
1st, applied to Cell sections and the work station point lamp quality testing of Module sections liquid crystal display panel four, and by controlling and communicating
Server is uniformly controlled the operation with coordinating whole lighting AOI system, that is, collects various functions and one, be uniformly controlled and manage,
Convenient operation and monitoring.
2nd, Optimum Design technological design, Product checking ability is improved, with the lighting AOI system phase in conventional art
Than possessing the advantage at least more than three times in terms of detection efficiency.
3rd, Robot actions technical flow design technology, cooperate between designed 3 manipulators, operation is accurate, stream
Freely, and stably.
4th, designed delivery unit, comprising liquid crystal display panel initial positioning mechanism, it is placed into by liquid crystal display panel
Before operating desk, initial alignment is carried out to liquid crystal display panel, ensures the lighting accuracy rate of liquid crystal display panel in operating desk.
5th, multistation operating desk designs, and is independent of each other, i.e., is detected in units of two stations between station two-by-two, and current two
When individual station or latter two station are had vacant position, manipulator is carried liquid crystal display panel and is filled in time, ensure that defects detection
During station maximum utilization ratio.
The 6th, different detection parameters and detection rank are set, ensure the quality testing demand for meeting different production tasks.
7th, be equipped with uninterruptible power system, it is ensured that system in the case of outside power failure continuous firing 30min with
On.
Embodiment of above is merely to illustrate the present invention, and not limitation of the present invention, about the common of technical field
Technical staff, without departing from the spirit and scope of the present invention, it can also make a variety of changes and modification, thus it is all
Equivalent technical scheme falls within the protection category of the present invention.
Claims (8)
- A kind of 1. multistation lighting AOI system, it is characterised in that including：Lighting jig module：Including at least two operating desks, each operating desk can at least accommodate two liquid crystal to be detected Display panel；Image collection module：It is arranged on above the lighting jig, is drawn for the lighting to the liquid crystal display panel to be detected Face capture, and send to image industry control unit；Control and the communication server：For being shown and being managed to testing result, detection process is controlled and realized Communication inside the multistation lighting AOI system；Image industry control unit：It is connected with described image acquisition module, for analyzing the lighting picture, obtains defect inspection Result is surveyed, including：The lighting picture of described image acquisition module input is pre-processed, removes noise and interference, and from figure " lofty " point or region are isolated in picture, " lofty " should put or region is just defect point or region, and demarcate afterwards and record lacks Trapping spot or region, and according to algorithmic rule, kind judging is carried out to defect point or region, meanwhile, it will be lacked based on industry ethernet Information transfer is fallen into control and the communication server, defective data is managed by control and the communication server and shown in real time Show.
- 2. multistation lighting AOI system according to claim 1, it is characterised in that also include：Transport module：For the liquid crystal display panel to be detected to be transported into operating desk or by the liquid crystal display to be detected Panel is walked from operating desk transhipment.
- 3. multistation lighting AOI system according to claim 1, it is characterised in that the lighting jig inside modules are also Polishing unit is provided with, for providing radiation source for the liquid crystal display panel to be detected.
- 4. the multistation lighting AOI system according to claim 1-3 any one, it is characterised in that described image obtains Module includes：For the camera unit shot to the liquid crystal display panel to be detected；For carrying the camera support unit of the camera unit；And for adjusting the camera adjustment unit of the camera unit present position.
- 5. multistation lighting AOI system according to claim 2, it is characterised in that the transhipment module includes：Delivery unit, for transmitting the liquid crystal display panel to be detected and determining the liquid crystal display panel to be detected Position and adjustment；Manipulator Transportation unit, for being carried to or moving away from the operating desk by the liquid crystal display panel to be detected.
- 6. multistation lighting AOI system according to claim 5, it is characterised in that the Manipulator Transportation unit includes At least three co-operating manipulators.
- 7. multistation lighting AOI system according to claim 1, it is characterised in that also include：The printing device being connected with the control and the communication server.
- 8. multistation lighting AOI system according to claim 7, it is characterised in that also include：The UPS uninterrupted power sources being connected respectively with described image industry control unit and control and the communication server.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310487891.3A CN104570411B (en) | 2013-10-17 | 2013-10-17 | Multistation lighting AOI system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310487891.3A CN104570411B (en) | 2013-10-17 | 2013-10-17 | Multistation lighting AOI system |
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| CN104570411A CN104570411A (en) | 2015-04-29 |
| CN104570411B true CN104570411B (en) | 2018-02-16 |
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Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105158264A (en) * | 2015-09-11 | 2015-12-16 | 苏州威盛视信息科技有限公司 | Automatic optical detection device with universal touch panel |
| CN106569352B (en) * | 2015-10-13 | 2024-01-26 | 北京兆维电子(集团)有限责任公司 | Device and method for acquiring detection image of liquid crystal display |
| CN105204200A (en) * | 2015-10-20 | 2015-12-30 | 北京兆维电子(集团)有限责任公司 | LCD lighting defect detecting system and method |
| CN105259684B (en) * | 2015-11-20 | 2018-10-19 | 武汉精测电子集团股份有限公司 | A kind of double-station liquid crystal display panel off-line checking system and method |
| CN105511123B (en) * | 2015-11-27 | 2018-12-14 | 武汉精测电子集团股份有限公司 | A kind of High Precision Automatic Systems for optical inspection and method based on mechanical arm |
| CN107920207B (en) * | 2017-12-15 | 2020-04-03 | 武汉精测电子集团股份有限公司 | Image transmission system and method based on PPC software improved AOI system |
| CN107979649B (en) * | 2017-12-15 | 2021-01-12 | 武汉精测电子集团股份有限公司 | AOI multi-line multi-station system and method based on Inline server |
| CN108594484B (en) * | 2018-04-19 | 2022-11-11 | 武汉精测电子集团股份有限公司 | Panel detection and repair integrated system |
| CN108646679B (en) * | 2018-05-09 | 2019-12-17 | 歌尔股份有限公司 | distributed visual detection system and industrial personal computer |
| CN109283473A (en) * | 2018-08-20 | 2019-01-29 | 浙江凯耀照明股份有限公司 | A kind of long point service life method for tracing and system |
| CN112285957B (en) * | 2020-10-30 | 2022-09-23 | 苏州精濑光电有限公司 | Display panel detection device |
| CN114113054A (en) * | 2021-10-29 | 2022-03-01 | 合肥维信诺科技有限公司 | Stamp test analysis device and stamp test analysis method |
| CN114199523B (en) * | 2021-12-09 | 2022-12-06 | 苏州华星光电技术有限公司 | Lighting jig and multi-station lighting system |
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