CN101666923A - Processing method, processing system and maintenance equipment for defects of liquid crystal display panel - Google Patents
Processing method, processing system and maintenance equipment for defects of liquid crystal display panel Download PDFInfo
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Abstract
The invention provides a processing method, a processing system and maintenance equipment for defects of a liquid crystal display panel. The processing method for the defects of the liquid crystal display panel comprises the steps of: acquiring defect images in a defect area on the liquid crystal display panel; analyzing the defect images and judging defect types; and searching corresponding maintenance schemes according to the defect types. The processing system for the defects of the liquid crystal display panel comprises an image acquisition module, a defect judgment module and a maintenance selection module. The maintenance equipment for the defects of the liquid crystal display panel comprises the processing system, a laser system, an electromechanical system and at least one controlhost computer. The processing method, the processing system and the maintenance equipment for the defects of the liquid crystal display panel can improve the accuracy of judging the defect types and improve the maintenance efficiency by analyzing the defect images, judging the defect types and then maintaining the liquid crystal panel according to the corresponding maintenance schemes.
Description
Technical field
The present invention relates to the manufacturing field of LCD, relate in particular to a kind of disposal route, disposal system and maintenance of equipment of defects of liquid crystal display panel.
Background technology
In the manufacture process of Thin Film Transistor-LCD (Thin Film Transistor Liquid CrystalDisplay is hereinafter to be referred as TFT-LCD), may make product produce defective owing to clean room foreign matter, technological parameter are provided with problem.Detection to defective at present generally has three kinds of methods, first kind is artificial vision's detection method (Human Visual Inspection), second kind is Machine Vision Detection method (Machine Visual Inspection), and the third is electrical parameter detection method (ElectricalParameter Inspection).Present most of producer still uses first kind of detection method, and the shortcoming of this method is that the subjectivity with detection person has much relations, and detection can cause the fatigue of human eye and influence the accuracy of testing result for a long time.
Finish defects detection at the detection operator, after determining defective locations, maintenance activity person at first finds defective locations, carry out type identification according to features such as the actual form of defective, position, brightness, sizes, determine defect type, for example picture element flaw or signal line imperfection manually select corresponding maintenance program to keep in repair at last.General maintenance all be to use laser maintaining equipment to the defective generation area cut, technologies such as welding or chemical gaseous phase deposition repair defective, and enter subsequent processing through detecting qualified back again according to normal product.
This shows, differentiation defect type of the prior art and maintenance program such as determine at process a large amount of human factor of having mixed, require maintenance activity person very familiar on the one hand to undesirable feature and genesis mechanism, also needing has more practical experience to operation of equipment and parameter, the accuracy rate that causes defect type to judge on the other hand is lower, maintenance efficiency is lower, and the equipment mobility is lower.
Summary of the invention
The objective of the invention is provides a kind of disposal route, disposal system and maintenance of equipment of defects of liquid crystal display panel in order to overcome the shortcoming that the type judging nicety rate is lower, maintenance efficiency is lower of defects of liquid crystal display panel in the prior art.
For achieving the above object, the invention provides a kind of disposal route of defects of liquid crystal display panel, comprising:
The defect image of defect area on step 1, the collection display panels;
Above-mentioned steps 2 is specially:
After defect image carried out Filtering Processing, to carrying out dividing processing through the defect image after the Filtering Processing;
Defect image after the dividing processing is carried out binary conversion treatment, extract the image of each layer in the defect image;
Textural characteristics and edge continuity feature to each tomographic image are analyzed;
From textural characteristics and the undesirable extracted region defect characteristic of edge continuity feature;
Obtain corresponding defect type according to described defect characteristic.
Can also comprise after the above-mentioned steps 3:
Step 4, keep in repair according to the defect area of described maintenance program to display panels.
A kind of disposal system of defects of liquid crystal display panel is characterized in that, comprising:
Image capture module is used to obtain the defect image of defect area on the display panels;
The defective discrimination module is connected with described image capture module, is used for described defect image is analyzed and judged defect type;
Module is selected in maintenance, be connected with described defective discrimination module, simultaneously with the memory module connection that stores various defect types and corresponding maintenance program, be used for selecting maintenance program according to described defect type, the maintenance program in the described memory module comes from the graphical user interface typing or programmable device is downloaded.
Above-mentioned defective discrimination module can comprise:
Feature extraction unit is connected with described image capture module, is used for extracting defect characteristic from described defect image;
The defective judgement unit is connected with described feature extraction unit, is used for judging defect type according to described defect characteristic;
Defected memory cell is connected with described defective judgement unit, is used to write down the defect characteristic of various defect types.
Above-mentioned feature extraction unit comprises:
The image filtering subelement is used for the defect image that obtains is carried out filtering;
The image segmentation subelement is connected with described image filtering subelement, is used for filtered defect image is carried out dividing processing;
Tomographic image extracts subelement, is connected with described image segmentation subelement, is used for the image after the described dividing processing is carried out binary conversion treatment, extracts the image of each layer of thin film transistor (TFT);
The feature extraction subelement extracts subelement with tomographic image and is connected, and analyzes by image texture features and edge continuity feature to described each layer, extracts defect characteristic from textural characteristics and the undesirable zone of edge continuity feature.
A kind of maintenance of equipment of defects of liquid crystal display panel of the disposal system that comprises above-mentioned defects of liquid crystal display panel comprises:
Laser system is used for according to maintenance program defects of liquid crystal display panel being carried out laser maintaining;
Mechatronic Systems is used to provide gas and uses electric control, assists the disposal system of laser system and defects of liquid crystal display panel to finish defect image collection and defective maintenance;
At least one main control system is used to the disposal system of described Mechatronic Systems, laser system and defects of liquid crystal display panel that operations necessary instruction and software support are provided.
Above-mentioned laser system comprises:
Laser instrument is used to provide maintenance laser;
Wavelength selector is arranged in the transmission light path of keeping in repair laser, and contiguous described laser instrument is used for selecting the maintenance Wavelength of Laser;
Many multiplying powers eyepiece group is arranged in the transmission light path of keeping in repair laser, and the contiguous display panels that will keep in repair is used to guide described maintenance laser that display panels is keeped in repair;
Transmitted light source is positioned at the board below of placing the display panels that will keep in repair, for maintenance provides background illumination with backlight.
Above-mentioned Mechatronic Systems comprises the horizontal support that is positioned on the board, is fixed on the horizontal support and the longitudinal carrier vertical with horizontal support, is equipped with the disposal system of described laser system and display panels planar defect on the longitudinal carrier.
The disposal system of above-mentioned defects of liquid crystal display panel also comprises:
Input/output module is used for getting in touch with main control system.
The invention provides a kind of disposal route, disposal system and maintenance of equipment of defects of liquid crystal display panel, by gathering defect image, defect image analysis is obtained defect characteristic, differentiate defect type according to defect characteristic, make that the differentiation of defect type is more accurate, according to the selected maintenance program of defect type, under the control of main control system, finish maintenance to the defective liquid crystal panel by Mechatronic Systems, laser system, improve maintenance efficiency, the mobility of maintenance of equipment also is improved.
Below by drawings and Examples, technical scheme of the present invention is described in further detail.
Description of drawings
Fig. 1 is the process flow diagram of the disposal route embodiment one of defects of liquid crystal display panel of the present invention;
Fig. 2 is the process flow diagram of the disposal route embodiment two of defects of liquid crystal display panel of the present invention;
Fig. 3 is the structural representation of the disposal system embodiment of defects of liquid crystal display panel of the present invention;
Fig. 4 is the structural representation of defective discrimination module among the disposal system embodiment of defects of liquid crystal display panel of the present invention;
Fig. 5 is the structural representation of the maintenance of equipment embodiment of defects of liquid crystal display panel of the present invention;
Fig. 6 forms synoptic diagram for laser system among the maintenance of equipment embodiment of defects of liquid crystal display panel of the present invention;
Fig. 7 is a defect type synoptic diagram one in the embodiment of the invention;
Fig. 8 is a defect type synoptic diagram two in the embodiment of the invention;
Fig. 9 is a maintenance program typing schematic flow sheet in the embodiment of the invention;
Figure 10 is the concrete implementing procedure figure when in the embodiment of the invention liquid crystal panel defective being keeped in repair.
Embodiment
The TFT device of the TFT-LCD that laser maintaining equipment in the embodiment of the invention is keeped in repair is multilayer, many cross-like normally, figure complexity height, the feature of defective also has diversity and complicacy, but the liquid crystal panel device architecture basically identical of while same model, the TFT figure has stronger repeatability.The genesis mechanism difference of every kind of defective may need different maintenance programs, and the technical scheme that the embodiment of the invention provides can be judged defective automatically and select maintenance program to keep in repair according to defect type.
Fig. 1 comprises the steps: for the process flow diagram of the disposal route embodiment one of defects of liquid crystal display panel of the present invention
The defect image of defect area on step 101, the collection display panels;
Step 102, defect image is analyzed and judged defect type;
Step 103, search corresponding maintenance program according to defect type.
In the present embodiment defect image is analyzed and judged that defect type is specially: after defect image is carried out Filtering Processing, carrying out dividing processing through the defect image after the Filtering Processing; Image after the dividing processing is carried out binary conversion treatment, extract the image of each layer in the defect image; Textural characteristics and edge continuity feature to each tomographic image are analyzed; From textural characteristics and the undesirable extracted region defect characteristic of edge continuity feature; Obtain corresponding defect type according to described defect characteristic.The module that stores the maintenance program corresponding with defect type is set simultaneously, can directly searches corresponding maintenance program according to defect type.The step of in the present embodiment defect image analysis being obtained defect characteristic can realize by special IC or universal integrated circuit.
Can analyze by defect image in the present embodiment defect area, judge defect type, automatically select maintenance program according to defect characteristic then, can improve the accuracy that defect type is differentiated, determine maintenance program, and can further increase the maintenance step, according to maintenance program display panels is keeped in repair.Fig. 2 as shown in Figure 2, comprises the steps: for the process flow diagram of the disposal route embodiment two of defects of liquid crystal display panel of the present invention
The defect image of defect area on step 201, the collection display panels;
Present embodiment is on the basis of the foregoing description, has increased the step of defects of liquid crystal display panel being keeped in repair according to maintenance program.
Can be in the present embodiment by gathering defect image, then the defect image of gathering is analyzed and judged defect type, search corresponding maintenance program according to defect type again, the accuracy of defects detection can be improved, and maintenance efficiency can be improved.
Fig. 3 is the structural representation of the disposal system embodiment of defects of liquid crystal display panel of the present invention, as shown in Figure 3, disposal system comprises image capture module 1, defective discrimination module 2, maintenance selection module 3 and memory module 4, and wherein image capture module 1 is used to obtain the defect image of defect area on the display panels; Defective discrimination module 2 is connected with described image capture module 1, is used for described defect image is analyzed and judged defect type; Maintenance selects module 3 to be connected with defective discrimination module 2, simultaneously with memory module 4 connections of various defect types of storage and corresponding maintenance program, be used for selecting corresponding maintenance program according to described defect type, maintenance program in the memory module 4 comes from graphical user interface (GUI) typing or programmable device is downloaded, this memory module 4 is extraneous input for neural network structure can receive, also can self-teaching.
The disposal system of the defects of liquid crystal display panel in the present embodiment, can differentiate defect type according to the defect image of the defect area that collects automatically, and can select and the corresponding maintenance program of this defect type, can improve the accuracy rate that defective is differentiated, improve maintenance efficiency.
Defective discrimination module in the present embodiment can further be divided according to function, Fig. 4 is the structural representation of defective discrimination module among the disposal system embodiment of defects of liquid crystal display panel of the present invention, as shown in Figure 4, defective discrimination module 2 further comprises feature extraction unit 21, defective judgement unit 22 and defected memory cell 23, feature extraction unit 21 is used for the defect image of defect area is analyzed, extract defect characteristic, defective judgement unit 22 is used for differentiating defect type according to the record of the defect characteristic of 23 pairs of defect types of defected memory cell and correspondence thereof, defected memory cell 23 is used for recording defect type and corresponding defect characteristic thereof, and present embodiment is that defect type and corresponding defect characteristic thereof and defect type and corresponding maintenance program thereof are stored respectively.
Wherein feature extraction unit 21 comprises that image filtering subelement 211, image segmentation subelement 212, tomographic image extract subelement 213, feature extraction subelement 214, wherein image filtering subelement 211 is used for the defect image that obtains is carried out filtering, image segmentation subelement 212 is connected with image filtering subelement 211, be used for filtered defect image is cut apart, tomographic image extracts subelement 213 and is used for the image after the dividing processing is carried out binary conversion treatment, extracts the image of each layer of thin film transistor (TFT); Feature extraction subelement 214 extracts subelement with tomographic image and is connected, analyze by image texture features and edge continuity feature described each layer, from textural characteristics and the undesirable zone of edge continuity feature, extract defect characteristic, judge defect type by defective judgement unit 22 according to defect characteristic again, select module 3 from memory module 4, to select maintenance program by maintenance at last according to defect type.The function that feature extraction unit in the present embodiment is handled image can pass through special IC (ASIC) or universal integrated circuit is realized, also can be to realize by software.
The disposal system of the defects of liquid crystal display panel in the present embodiment can be obtained defect image, judges defect type according to defect image, searches corresponding maintenance program again, can improve the accuracy rate that defect type is differentiated, and searches corresponding maintenance program accurately.
Defect processing device in the present embodiment can use in the maintenance of equipment embodiment of following defects of liquid crystal display panel, also can carry out simultaneously the step among the disposal route embodiment of above-mentioned defects of liquid crystal display panel.
The present invention also provides a kind of maintenance of equipment of defects of liquid crystal display panel, the disposal system of the defects of liquid crystal display panel in comprising the foregoing description, also comprise: laser system, Mechatronic Systems and main control system, wherein the disposal system of defects of liquid crystal display panel can be judged defect type according to defect image, and judges maintenance program; Laser system is carried out laser maintaining according to selected maintenance program; Mechatronic Systems is used to provide gas and uses electric control, assists the disposal system of laser system and defects of liquid crystal display panel to carry out the defect image collection and display panels is carried out laser maintaining; Main control system is used to the disposal system of laser system, Mechatronic Systems and defects of liquid crystal display panel that operations necessary instruction and software support are provided.
Mechatronic Systems in the present embodiment is the basis of maintenance of equipment, comprise the gas on basis and with indispensable parts such as electric control unit and sensors, Fig. 5 is the structural representation of the maintenance of equipment embodiment of defects of liquid crystal display panel of the present invention, as shown in Figure 5, place liquid crystal panel 62 to be keeped in repair on the board 61 of maintenance of equipment, board can use the marble structure, horizontal support 63 is fixed on the board, horizontal support 63 comprises X-axis linear motor and track, longitudinal carrier 64 is fixed on the horizontal support 63, comprise Y-axis linear motor and track, on longitudinal carrier 64, be equipped with the optical system 65 of the disposal system formation of laser system and defects of liquid crystal display panel.Optical system 65 can be moved on the Z-direction vertical with liquid crystal panel, and its motion is controlled by Z axle step motor.Mechatronic Systems also is connected with main control system 7, and dotted line represents that main control system comes the CD-ROM drive motor motion by the total line traffic control motor driver of PLC, can also control the optical system 65 that is assemblied on the longitudinal carrier 64 simultaneously among the figure.
The maintenance of equipment of the defects of liquid crystal display panel that provides in the present embodiment can be classified to defective automatically, and selects corresponding maintenance program to keep in repair according to defect type, can improve the accuracy rate that defect type detects, and maintenance efficiency is provided.
Fig. 6 forms synoptic diagram for laser system among the maintenance of equipment embodiment of defects of liquid crystal display panel of the present invention, as shown in Figure 6, laser system in the present embodiment comprises: laser instrument 50, many multiplying powers eyepiece group 58, transmitted light source 521, reflection source 522, other optical device in slit (Slit light source) 523 and the laser maintaining light path, as deviation prism 53, frequency multiplier 54, wavelength selector 55, slit selector switch (Slit selector switch) 56, condenser lens 57, first spectroscope 591, second spectroscope 592, the 3rd spectroscope 593, wherein laser instrument 50 is used to provide detection and maintenance laser, the principle of laser instrument is the pulse laser that the photon that produces stimulated radiation in the resonator cavity sends different wave length that acts on that gain medium is subjected to encouraging pumping source, also be provided with laser cooling device 51 in the present embodiment, come cooling laser device 50 with recirculated water.Light source comprises transmitted light source 521, reflection source 522 and slit 523, transmitted light source 521 is positioned at the board below, for maintenance fluid crystal panel 62 provides background illumination with backlight, reflection source 522 is parts of laser optical path, for the CCD pickup image provides illumination, slit 523 also is the part of laser optical path, and illumination is provided when adjusting shape for slit selector switch 56; Wherein deviation prism 53 makes laser finish the deflection of certain angle, change the laser outbound course, frequency multiplier 54 is used for amplifying laser, wavelength selector 55 can effectively be selected printing opacity laser, slit selector switch 56 is used for controlling the shape that laser penetrates, spectroscope can see through different light according to the refractive index difference of light, comprise 3 spectroscopes in the present embodiment light path, wherein first spectroscope 591 light that reflection source 522 is sent is incorporated in the light path, second spectroscope 592 outputs to defect image the disposal system 8 of defects of liquid crystal display panel, the light that the 3rd spectroscope 593 sends slit is incorporated in the light path, the defect image of 57 pairs of picked-ups of condenser lens is assembled to obtain distinct image, many multiplying powers eyepiece group 58 is made up of the camera lens of a plurality of multiplying powers, comprise 5X in the present embodiment, 20X, 50X, 100X, the conversion of the camera lens of different multiplying is finished by the drive of eyepiece selector switch.The effect of 5X, 20X is to be used for observing object, determines defect area; 50X, 100X can be used for amplifying defective and determine characteristics such as defective border and form color, and can carry out laser maintaining by transmission laser.
The disposal system of the defects of liquid crystal display panel in the present embodiment wherein can also comprise the input/output module of getting in touch with main control system.
In specific implementation process, the image information input is to be assembled through convergent lens by the defect image that the eyepiece group obtains, be transferred to the ccd image acquisition module via the spectroscope reflected light path again, image capture module is gathered the signal that transmits with the light form and is obtained colored image information and send the defective discrimination module to.The defective discrimination module is divided into three unit, first is a feature extraction unit, its effect is that color image data is carried out analyzing and processing, via image filtering filtering clutter, with certain proportion every width of cloth coloured image being carried out equal portions then cuts apart, dwindle process range, again image is carried out image binaryzation, image binaryzation is meant according to coloured image, be being of different shades of each part of TFT device, as grid line layer is golden yellow, and the source-drain electrode layer is light yellow, sets gray threshold, each layer is extracted, at last image is carried out rim detection, i.e. each tomographic image of Detection and Extraction and textural characteristics between each layer and edge continuity feature, the discontinuous or undesirable part of textural characteristics is carried out defect characteristic and is extracted for figure; The defect characteristic that extracts is input to the defective judgement unit, carry out the judgement of defect type according to the record of defected memory cell by the defective judgement unit, the selected maintenance program of module is selected in maintenance, after input/output module is sent to main control system, there is main control system control to finish further maintenance job, store the defect characteristic of various defectives in the defected memory cell, have ability of self-teaching.
Also comprise a main control system in the embodiment of the invention, for the disposal system of Mechatronic Systems, laser system and defects of liquid crystal display panel provides operations necessary instruction and software support.Main control system can be by control able to programme (PLC) bus driver linear motor, (Cable) links to each other with optical system by cable, realize relevant control of laser and image transmission result's transmission by user interface (UI), the defect characteristic of the various defectives of mentioning in the above-described embodiments and to maintenance program that should defective can be from main control system typing and be written to stored data base.
The maintenance of equipment of the defects of liquid crystal display panel that the embodiment of the invention provides, can judge defect type according to the defect image of defect area, and search corresponding maintenance program panel of LCD is keeped in repair, this technical scheme has reduced the interference of human factor, improved the accuracy rate and the maintenance efficiency of defects detection, the equipment mobility is improved.
The picture element flaw that causes with grid line (Gate) layer metal residual is that example describes disposal route involved in the present invention, disposal system and maintenance of equipment now.Grid line layer metal residual defective can be as shown in Figure 7 and Figure 8, the ITO electrode 93, TFT device 94, the metal residual 95 that comprise grid line figure 91, data line figure 92, each color pixel correspondence among Fig. 7 on the display panels, the image that collects is carried out can obtaining after the binary conversion treatment as shown in Figure 8 image, comprising normal binaryzation grid line figure 96 and binaryzation metal residual figure 98, obtain maintenance program through handling, determine and to implement excision (cutting) to metal residual, excise along the excision maintenance thread 97 shown in Fig. 7 during maintenance.
In order to use correct method for maintaining, should be in defected memory cell the defect characteristic of the defective correspondence of typing the type, select the typing maintenance program corresponding, i.e. some maintenance parameters in the module in maintenance with defect type, detailed process comprises the steps: as shown in Figure 9
The title of step 301, typing defective and corresponding defect characteristic, at the grid line layer metal residual in the foregoing description, defect characteristic is the sudden change of grid line layer pattern edge gradient, and is discontinuous;
The eyepiece multiple that step 303, selection are used, for example the eyepiece of 50X is used in selection;
Finish the back as maintenance program one use for typing, defective and maintenance program thereof for other types also can take same mode from the main control system typing, and final in memory module, form the defect characteristic corresponding with each defect type, and corresponding maintenance program, more than can pass through the main control system typing to the typing of defect characteristic and maintenance program, the parameter that maintenance parameter wherein is not limited only to enumerate in the above-mentioned steps also comprises for example parameter such as back light source brightness; Can be written in the random-access memory (ram) by software UI for maintenance program, or download, can use neural network and realize self-teaching, improve maintenance program from programmable device.
When the liquid crystal panel that has grid line layer metal residual defective is keeped in repair, as shown in figure 10, comprise the steps:
The disposal route of defects of liquid crystal display panel provided by the invention, disposal system and maintenance of equipment, by gathering the defect area defect image, defect image analysis is obtained defect characteristic, differentiate defect type according to defect characteristic, make that the differentiation of defect type is more accurate, according to the selected maintenance program of defect type, under the control of main control system, Mechatronic Systems, laser system are finished the maintenance to the defective liquid crystal panel, have improved maintenance efficiency, and the mobility of maintenance of equipment also is improved.
It should be noted that at last: above embodiment is only in order to technical scheme of the present invention to be described but not limit it, although the present invention is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that: it still can make amendment or be equal to replacement technical scheme of the present invention, and these modifications or be equal to replacement and also can not make amended technical scheme break away from the spirit and scope of technical solution of the present invention.
Claims (10)
1, a kind of disposal route of defects of liquid crystal display panel is characterized in that, comprising:
The defect image of defect area on step 1, the collection display panels;
Step 2, described defect image is analyzed and judged defect type;
Step 3, search corresponding maintenance program according to described defect type.
2, the disposal route of defects of liquid crystal display panel according to claim 1 is characterized in that, described step 2 is specially:
After defect image carried out Filtering Processing, to carrying out dividing processing through the defect image after the Filtering Processing;
Defect image after the dividing processing is carried out binary conversion treatment, extract the image of each layer in the defect image;
Textural characteristics and edge continuity feature to each tomographic image are analyzed;
From textural characteristics and the undesirable extracted region defect characteristic of edge continuity feature;
Obtain corresponding defect type according to described defect characteristic.
3, the disposal route of defects of liquid crystal display panel according to claim 1 and 2 is characterized in that, also comprises after the described step 3:
Step 4, keep in repair according to the defect area of described maintenance program to display panels.
4, a kind of disposal system of defects of liquid crystal display panel is characterized in that, comprising:
Image capture module is used to obtain the defect image of defect area on the display panels;
The defective discrimination module is connected with described image capture module, is used for described defect image is analyzed and judged defect type;
Module is selected in maintenance, be connected with described defective discrimination module, simultaneously with the memory module connection that stores various defect types and corresponding maintenance program, be used for selecting maintenance program according to described defect type, the maintenance program in the described memory module comes from the graphical user interface typing or programmable device is downloaded.
5, the disposal system of defects of liquid crystal display panel according to claim 4 is characterized in that, described defective discrimination module comprises:
Feature extraction unit is connected with described image capture module, is used for extracting defect characteristic from described defect image;
The defective judgement unit is connected with described feature extraction unit, is used for judging defect type according to described defect characteristic;
Defected memory cell is connected with described defective judgement unit, is used to write down the defect characteristic of various defect types.
6, the disposal system of defects of liquid crystal display panel according to claim 5 is characterized in that, described feature extraction unit comprises:
The image filtering subelement is used for the defect image that obtains is carried out filtering;
The image segmentation subelement is connected with described image filtering subelement, is used for filtered defect image is carried out dividing processing;
Tomographic image extracts subelement, is connected with described image segmentation subelement, is used for the image after the described dividing processing is carried out binary conversion treatment, extracts the image of each layer of thin film transistor (TFT);
The feature extraction subelement extracts subelement with tomographic image and is connected, and analyzes by image texture features and edge continuity feature to described each layer, extracts defect characteristic from textural characteristics and the undesirable zone of edge continuity feature.
7, a kind of maintenance of equipment of defects of liquid crystal display panel of the disposal system that comprises the arbitrary described defects of liquid crystal display panel of claim 4-6 is characterized in that, comprising:
Laser system is used for according to maintenance program defects of liquid crystal display panel being carried out laser maintaining;
Mechatronic Systems is used to provide gas and uses electric control, assists the disposal system of laser system and defects of liquid crystal display panel to finish defect image collection and defective maintenance;
At least one main control system is used to the disposal system of described Mechatronic Systems, laser system and defects of liquid crystal display panel that operations necessary instruction and software support are provided.
8, the maintenance of equipment of defects of liquid crystal display panel according to claim 7 is characterized in that, described laser system comprises:
Laser instrument is used to provide maintenance laser;
Wavelength selector is arranged in the transmission light path of described maintenance laser, and contiguous described laser instrument is used for selecting the maintenance Wavelength of Laser;
Many multiplying powers eyepiece group is arranged in the transmission light path of described maintenance laser, and the contiguous display panels that will keep in repair is used to guide described maintenance laser that display panels is keeped in repair;
Transmitted light source is positioned at the board below of placing the display panels that will keep in repair, for maintenance provides background illumination with backlight.
9, the maintenance of equipment of defects of liquid crystal display panel according to claim 7, it is characterized in that, described Mechatronic Systems comprises the horizontal support that is positioned on the board, be fixed on the horizontal support and the longitudinal carrier vertical, be equipped with the disposal system of described laser system and display panels planar defect on the described longitudinal carrier with horizontal support.
10, the maintenance of equipment of defects of liquid crystal display panel according to claim 7 is characterized in that, the disposal system of described defects of liquid crystal display panel also comprises:
Input/output module is used for and described main control system contact.
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