CN109001208A - A kind of defect positioning device and defect positioning method of display panel - Google Patents
A kind of defect positioning device and defect positioning method of display panel Download PDFInfo
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- CN109001208A CN109001208A CN201810520532.6A CN201810520532A CN109001208A CN 109001208 A CN109001208 A CN 109001208A CN 201810520532 A CN201810520532 A CN 201810520532A CN 109001208 A CN109001208 A CN 109001208A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/8851—Scan or image signal processing specially adapted therefor, e.g. for scan signal adjustment, for detecting different kinds of defects, for compensating for structures, markings, edges
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/8851—Scan or image signal processing specially adapted therefor, e.g. for scan signal adjustment, for detecting different kinds of defects, for compensating for structures, markings, edges
- G01N2021/8854—Grading and classifying of flaws
- G01N2021/8861—Determining coordinates of flaws
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/8851—Scan or image signal processing specially adapted therefor, e.g. for scan signal adjustment, for detecting different kinds of defects, for compensating for structures, markings, edges
- G01N2021/8854—Grading and classifying of flaws
- G01N2021/8861—Determining coordinates of flaws
- G01N2021/8864—Mapping zones of defects
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/8851—Scan or image signal processing specially adapted therefor, e.g. for scan signal adjustment, for detecting different kinds of defects, for compensating for structures, markings, edges
- G01N2021/8887—Scan or image signal processing specially adapted therefor, e.g. for scan signal adjustment, for detecting different kinds of defects, for compensating for structures, markings, edges based on image processing techniques
- G01N2021/8893—Scan or image signal processing specially adapted therefor, e.g. for scan signal adjustment, for detecting different kinds of defects, for compensating for structures, markings, edges based on image processing techniques providing a video image and a processed signal for helping visual decision
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/89—Investigating the presence of flaws or contamination in moving material, e.g. running paper or textiles
- G01N21/8901—Optical details; Scanning details
- G01N2021/8908—Strip illuminator, e.g. light tube
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- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/95—Investigating the presence of flaws or contamination characterised by the material or shape of the object to be examined
- G01N2021/9513—Liquid crystal panels
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2201/00—Features of devices classified in G01N21/00
- G01N2201/06—Illumination; Optics
- G01N2201/061—Sources
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2201/00—Features of devices classified in G01N21/00
- G01N2201/10—Scanning
- G01N2201/102—Video camera
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Abstract
The invention discloses a kind of defect positioning devices of display panel, the defect positioning device of the display panel using automatically with combined manually by the way of, panel zone selection and flaw labeling are carried out manually, defect positioning device automation carries out region movement and label captures, not only it had reduced personnel's operating quantity but also had reduced costs, again can be with the specific coordinate position of accurate calibration defect, calibration accuracy is high, convenient for be automatically repaired equipment and be used cooperatively；It is widely used in number of drawbacks type, including 3D panel types are bad, flash type bright spot or specific type are bad (the bad crosspoint such as S-G, stain etc. on S-C line)；The invention also discloses the defect positioning methods for the defect positioning device for being applied to the display panel.
Description
Technical field
The present invention relates to the defect positioning devices and defect location side of field of display technology more particularly to a kind of display panel
Method.
Background technique
The bad incidence of display panel is higher before and after the processing procedure of polarizer attaching at this stage, for bright spot, stain, black line etc.
It is bad to be modified to improve product yield, but undesirable quick and precisely automatic amendment needs are with the accurate coordinate of defect
Premise.
In the prior art, there are mainly three types of modes for the defect location of display panel: positioning, camera light after full-contact checks
Learn automatic Calibration and the positioning of personnel's hand labeled.Wherein, positioning is to utilize Full connected after lighting inspection after full-contact inspection
Formula point modulation characteristic carries out defect calibration；The accuracy that this mode positions is high, up to 99.8%, but need to purchase about 300 contingency platforms
Full-contact lighting board, at high cost, and the activity duration is longer, each display panel needs 12s.Camera optics automatic positioning
Manipulating object limitation, for amendment failure product, used device is demarcated again, and production capacity is caused to waste；Not for 3D panel types
Good, flash type bright spot or specific type bad (the bad crosspoint such as S-G, S-C line on stain) there are spill tag is fixed or calibration not
Accurate situation.Personnel's manual positioning is by manually demarcating position, and corrective is found according to position, at low cost,
But coordinate accuracy is only capable of reaching 5%, while being automatically repaired equipment and can not be used cooperatively, job area is limited.
Summary of the invention
In order to solve the above technical problems, the present invention provides defect positioning device and the defect location side of a kind of display panel
Method, can be with the specific coordinate position of accurate calibration defect, and is widely used in number of drawbacks type.
Technical solution provided by the invention is as follows:
The invention discloses a kind of defect positioning device of display panel, which includes: acquisition image letter
Detection unit, the control detection unit of breath mobile mobile unit and computing unit, the computing unit is according to detection unit
Moving distance and image information calculate display panel position compensating value and defect coordinate；
The detection unit includes camera；
The mobile unit includes the motor for controlling detection unit and moving along X-axis, Y-axis, Z-direction；X-axis and Y-axis are mutual
Vertically and each parallel to panel surface, Z axis is perpendicular to measured panel surface；
The computing unit includes the control panel for connecting the monitor and connection monitor of mobile unit and detection unit；Prison
The image information that the moving distance and detection unit of control device receiving mobile unit control detection unit are transmitted；Control panel be used for into
Row panel zone chooses and defect proving operation.
Preferably, the defect positioning device of the display panel further includes controlling the display panel the lighting unit lighted；It is described
Lighting unit includes lighting jig, backlight, signal generator and input and output controller；
Backlight is located at below display panel；
Lighting jig fixed display panel and backlight, and signal input display panel will be shown by signal terminal；
Signal generator connects the monitor and lighting jig, and output display signal is with the display picture of control panel；
Input and output controller connects the monitor and backlight, control backlight light and luminance is adjusted.
Preferably, the monitor the first picture of changeable display and the second picture；Display panel is divided into N number of sub-district
Domain；
First picture be display panel overall picture, to n-th shown by the first picture (1≤n≤N, and n, N be it is whole
Number) subregion clicked, and so that the center of the camera is moved to the center of the n-th subregion of display panel, camera is along Z axis side
To mobile zoom, monitor switches to the picture that the second picture shows the n-th subregion.
The invention also discloses a kind of defect positioning methods of display panel, the defect location applied to above-mentioned display panel
Device, comprising steps of
Step 1: being pre-seted to the defect positioning device of the display panel；
Step 2: defect coordinate measures, including following sub-step:
Step21: by the fixed simultaneously lighting of display panel, at least two correspondence markings is grabbed, determine the first label coordinate (Xa1,
Ya1) and the second label coordinate (Xa2, Yb2)；By respectively with the first preset mark coordinate (Xa, Ya) and the second preset mark coordinate
(Xb, Yb) contrast conting, obtain the position compensating value (X of display paneloffset, Yoffset)；
Step22: monitor shows the first picture, and confirmation defect is located at the n-th subregion of panel, by clicking monitor
The first picture shown by the n-th subregion, the center of mobile unit control camera is moved to the regional center of the n-th subregion,
Camera zoom, monitor switch to the picture that the second picture shows the n-th subregion, determine defective locations by monitor and mark
It is fixed, obtain defect coordinate (X1, Y1)；
Step23: conversion obtains the pixel coordinate (A, B) of sub-pixel locating for defect.
Based on identical inventive concept, the invention discloses a kind of defect positioning devices of display panel, it is preferable that described
Monitor includes first area and second area, and monitor can show the first picture in first area simultaneously and show in second area
Show the second picture；Display panel is divided into N number of subregion；
First picture shown by first area is display panel overall picture, with n-th (1≤n shown by the first picture
≤ N, and n, N are integer) subregion clicked, it is moved to the center of the camera in the n-th subregion of display panel
The heart, camera move zoom along Z-direction, and the second screen switching shown by second area is the picture of the n-th subregion.
The invention also discloses a kind of defect positioning methods of display panel, the defect location applied to above-mentioned display panel
Device, comprising steps of
Step 1: being pre-seted to the defect positioning device of the display panel；
Step 2: defect coordinate measures, including following sub-step:
Step21: by the fixed simultaneously lighting of display panel, at least two correspondence markings is grabbed, determine the first label coordinate (Xa1,
Ya1) and the second label coordinate (Xa2, Yb2)；By respectively with the first preset mark coordinate (Xa, Ya) and the second preset mark coordinate
(Xb, Yb) contrast conting, obtain the position compensating value (X of paneloffset, Yoffset)；
Step22: the first area of monitor shows the first picture, and confirmation defect is located at the n-th subregion of panel, passes through
The n-th subregion shown by the first picture is clicked, the center of mobile unit control camera is moved in the region of the n-th subregion
The heart, camera zoom, the second screen switching shown by second area are the picture of the n-th subregion, determine defect by monitor
Position is simultaneously demarcated, and defect coordinate (X is obtained1, Y1)；
Step23: conversion obtains the pixel coordinate (A, B) of sub-pixel locating for defect.
Preferably, the pixel coordinate meets:
A=(X1+Xoffset-X0)/x；B=(Y1+Yoffset-Y0)/y；
Wherein, (A, B) is the pixel coordinate of sub-pixel locating for defect, (X1, Y1) it is defect coordinate, (Xoffset, Yoffset) be
The position compensating value of display panel, (X0, Y0) it is panel origin, x is first direction sub-pixel spacing, and y is second direction
Pel spacing.
Preferably, the first step includes following sub-step:
Step11: the resolution of display panel is set；
Step12: setting first direction sub-pixel spacing x and second direction sub-pixel spacing y；
Step13: camera is moved to equipment origin (0,0)；
Step14: the face plate indicia type and predeterminated position that setting needs to grab include at least the first preset mark coordinate
(Xa, Ya) and the second preset mark coordinate (Xb, Yb)；
Step15: camera is moved to panel origin, records the coordinate (X of panel origin0, Y0)。
Compared with prior art, the present invention can bring it is at least one of following the utility model has the advantages that
1, can be with the specific coordinate position of accurate calibration defect, calibration accuracy is high, convenient for be automatically repaired equipment cooperation
It uses；
2, personnel's operating quantity had not only been reduced with the mode combined manually automatically but also reduced costs；
3, be widely used in number of drawbacks type, including 3D panel types are bad, flash type bright spot or specific type not
Good (the bad crosspoint such as S-G, stain etc. on S-C line).
Detailed description of the invention
Below by clearly understandable mode, preferred embodiment is described with reference to the drawings, the present invention is given furtherly
It is bright.
Fig. 1 is that the invention shows the block schematic illustrations of the defect positioning device of panel；
Fig. 2 is the structural schematic diagram of the defect positioning device of display panel shown in Fig. 1；
Fig. 3 is that the invention shows the face plate indicia schematic diagrames of panel；
Fig. 4 is display panel pixel structural schematic diagram；
Fig. 5 is that the monitor of one embodiment of the invention shows picture drawing；
Fig. 6-7 is that the invention shows the step schematic diagrames that face plate indicia is grabbed in the defect positioning method of panel.
Specific embodiment
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, Detailed description of the invention will be compareed below
A specific embodiment of the invention.It should be evident that drawings in the following description are only some embodiments of the invention, for
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings other
Attached drawing, and obtain other embodiments.
To make simplified form, part related to the present invention is only schematically shown in each figure, they are not represented
Its practical structures as product.In addition, there is identical structure or function in some figures so that simplified form is easy to understand
Component only symbolically depicts one of those, or has only marked one of those.
The invention shows the frame structure of the defect positioning device of panel as shown in Figure 1, including the inspection of acquisition image information
Survey the mobile mobile unit 02 of unit 01, control detection unit 01, moving distance and image information meter according to detection unit 01
Calculate the position compensating value of display panel and the computing unit 03 of defect coordinate.For non-spontaneous smooth display panel, defect location dress
Setting further includes lighting unit 04；For light-emitting display panel, then lighting unit 04 is not necessarily to.
The structure of defect positioning device is specifically as shown in Figure 2, wherein detection unit 01 includes camera 011, and camera 011 is adopted
The image information for collecting display panel obtains the position of measured panel using face plate indicia (" ten " font mark as shown in Figure 3)
Compensating value, operating personnel demarcates defective locations by camera 011 later.
Mobile unit 02 includes the high-precision motor that controllable camera 011 is moved along X-axis, Y-axis, Z-direction, X-axis and Y-axis
It is mutually perpendicular to and each parallel to measured panel surface, for moving camera 011 to capture face plate indicia and defective locations along it；
Auto-focusing of the Z axis perpendicular to measured panel surface, for camera 011.
Computing unit 03 is counted according to camera 011 along the face plate indicia position that X-axis, the moving distance of Y-axis and camera 011 capture
Calculate the position compensating value of measured panel, and the defective locations meter demarcated according to camera 011 along X-axis, the moving distance of Y-axis and personnel
Calculate the coordinate value of defect.Computing unit 03 includes monitor 031 (PC), control panel 032.031 connecting detection unit 01 of monitor
With mobile unit 02, the image information that receiving mobile unit 02 controls the mobile distance of camera 011 and camera 011 transmits, and control
Lighting unit 04 processed lights display panel.Control panel 032 connects monitor 031, and staff is facilitated to carry out panel zone selection
With defect calibration etc. operation.
Lighting unit 04 includes lighting jig 041, backlight 042, signal generator 043 (PG, Program
) and input and output controller 044 (I/O controller) Guidance.Backlight 042 is located at below measured panel, and when lighting provides
Light source.The fixed measured panel of lighting jig 042 and backlight 042, and signal input display panel will be shown by signal terminal.
Signal generator 043 connects monitor 031 and lighting jig 041, generates display signal with the display picture of control panel.Input
O controller 044 connects monitor 031 and backlight 042, control backlight 042 light and luminance is adjusted.
As shown in figure 4, display panel includes multiple sub-pixels of rectangular arrangement, sub-pixel short side extending direction is denoted as
First direction, sub-pixel short side extending direction are denoted as first direction, and first direction sub-pixel spacing is denoted as x, second direction pixel
Spacing is denoted as y.Below in an example, when display panel is fixed on defect positioning device, make first direction substantially
It is parallel to the X-axis of device, second direction is made to be roughly parallel to the Y-axis of device, defect positioning device can be to the placement location of panel
It carries out coordinate correction (offset).In actual use, first direction can also be made to be roughly parallel to the Y-axis of device, makes second direction
It is roughly parallel to the X-axis of device, needs to carry out computing unit 03 model selection at this time to select corresponding calculation method.
The first picture of changeable display of monitor 031 and the second picture in the present invention, when monitor 031 shows the first picture
For panel overall picture, display panel is divided into N number of subregion, such as 9,16 rectangularly；Monitor 031 is being shown
It is the picture of one of subregion when the second picture.Operator can be by shown by the first picture of mouse or touch click
N-th (1≤n≤N, and n, N be integer) subregion, so that the center of camera 011 is automatically moved to the region of the n-th subregion
Center, monitor 031 is automatically by the first screen switching to the second picture of corresponding n-th subregion.First picture and the second picture
It can also include lateral marking line and longitudinal marking line, the square crossing point of lateral marking line and longitudinal marking line indicates mouse
Or touch point position, facilitate personnel to operate.
The invention also discloses a kind of defect positioning methods of display panel, are applied to drawbacks described above positioning device, including
Following steps:
Step 1: pre-set, specifically includes the following steps:
Step11: being arranged the resolution of measured panel, and wherein first direction is needed due to RGB arrangement by sub-pixel (sub-
Pixel) quantity inputs, and such as 1080P resolution ratio, first direction number of sub-pixels is 1920*3, and second direction number of sub-pixels is
1080；
Step12: setting first direction sub-pixel spacing x and second direction sub-pixel spacing y；
Step13: camera 011 is moved to equipment point (0,0)；
Step14: as shown in fig. 6, according in measured panel face plate indicia type (L-type mark, cross mark etc.) and
Technological parameter, the face plate indicia type and predeterminated position that setting needs to grab, includes at least the first preset mark coordinate (Xa, Ya)
With the second preset mark coordinate (Xb, Yb)；
Step15: camera 011 is moved to panel origin, records panel origin (X0, Y0)。
Step 2: defect coordinate measures, specifically includes the following steps:
Step21: the fixed simultaneously lighting of measured panel is grabbed at least two correspondence markings as shown in Figure 6 and Figure 7, is determined
First label coordinate (Xa1, Ya1) and the second label coordinate (Xa2, Yb2)；By respectively with the first preset mark coordinate (Xa, Ya) and
Second preset mark coordinate (Xb, Yb) contrast conting, obtain the position compensating value (X of paneloffset, Yoffset)；
Step22: monitor 031 shows the first picture, and personnel confirm that defect is located at the n-th subregion of panel, by clicking
N-th subregion shown by 031 first picture of monitor, the center that mobile unit 02 controls camera 011 are moved to the son
The regional center in region, 011 zoom of camera, monitor 031 switch to the picture that the second picture shows the n-th subregion, Ren Yuantong
It crosses monitor 031 to determine defective locations and demarcate, obtains defect coordinate (X1, Y1)；
Step23: conversion obtains the pixel coordinate (A, B) of defect, and pixel coordinate (A, B) meets:
A=(X1+Xoffset-X0)/x；B=(Y1+Yoffset-Y0)/y；
Sub-pixel is located at line a column b sub-pixel with respect to panel origin where wherein pixel coordinate (A, B) represents defect.
As another embodiment, as shown in figure 5, monitor 031 of the invention may include first area and second area,
Monitor 031 can show the first picture in first area and show the second picture in second area simultaneously.Shown by first area
The first picture be display panel overall picture, personnel can be by clicking (1≤n≤N, and n, N n-th shown by the first picture
For integer) subregion, so that the center of the camera 011 is moved to the center of the n-th subregion of display panel, camera 011 can be along Z
Axis direction moves zoom, and the second screen switching shown by second area is the picture of the n-th subregion.
Correspondingly, above-mentioned Step22 is adjusted:
Step22: the first area of monitor shows the first picture, and personnel confirm that defect is located at the n-th subregion of panel,
By clicking the n-th subregion shown by 031 first picture of monitor, the center that mobile unit 02 controls camera 011 is moved
Move the regional center of the subregion, 011 zoom of camera, the second screen switching shown by second area is the n-th subregion
Picture, personnel determine defective locations by monitor 031 and demarcate, and obtain defect coordinate (X1, Y1)。
As another embodiment, as shown in figure 5, monitor 031 of the invention may include first area (such as upper right corner)
With second area (such as the upper right corner is with exterior domain), monitor 031 can while show the first picture in first area and in the secondth area
Domain shows the second picture.First picture shown by first area is display panel overall picture, and personnel can be by clicking first
(1≤n≤N, and n, N are integer) subregion, makes the center of the camera 011 be moved to display panel n-th shown by picture
The n-th subregion center, camera 011 can move zoom along Z-direction, and the second screen switching shown by second area is the
The picture of n subregion.
It should be noted that as another embodiment, when carrying out regional choice, can make 031 area of monitor compared with
Big second area display panel is whole or amplified partial picture, and aspect personnel observe and click, after the completion of clicking
Second area is set to show the picture of the n-th subregion again.
The defect positioning device and localization method of display panel of the invention using automatically with combined manually by the way of, personnel
Panel zone selection and flaw labeling are carried out manually, and defect positioning device automation carries out region movement and label captures, and both drops
Low personnel's operating quantity reduces costs again, and can be with the specific coordinate position of accurate calibration defect, and calibration accuracy is high, be convenient for
It is used cooperatively with equipment is automatically repaired；It is widely used in number of drawbacks type, including 3D panel types are bad, flash type bright spot
Or specific type is bad (the bad crosspoint such as S-G, stain etc. on S-C line).
It should be noted that above-described embodiment can be freely combined as needed.The above is only of the invention preferred
Embodiment, it is noted that for those skilled in the art, in the premise for not departing from the principle of the invention
Under, multiple improvements and modifications can also be made, these modifications and embellishments should also be considered as the scope of protection of the present invention.
Claims (8)
1. a kind of defect positioning device of display panel characterized by comprising acquire detection unit, the control of image information
The mobile mobile unit of detection unit and computing unit, the computing unit are believed according to the moving distance and image of detection unit
Breath calculates the position compensating value and defect coordinate of display panel；
The detection unit includes camera；
The mobile unit includes the motor for controlling detection unit and moving along X-axis, Y-axis, Z-direction；X-axis and Y-axis are mutually perpendicular to
And each parallel to panel surface, Z axis is perpendicular to measured panel surface；
The computing unit includes the control panel for connecting the monitor and connection monitor of mobile unit and detection unit；Monitor
The image information that the moving distance and detection unit of receiving mobile unit control detection unit are transmitted；Control panel is for carrying out face
Plate region chooses and defect proving operation.
2. display panel positioning device according to claim 1, it is characterised in that: further include controlling the display panel to light
Lighting unit；The lighting unit includes lighting jig, backlight, signal generator and input and output controller；
Backlight is located at below display panel；
Lighting jig fixed display panel and backlight, and signal input display panel will be shown by signal terminal；
Signal generator connects the monitor and lighting jig, and output display signal is with the display picture of control panel；
Input and output controller connects the monitor and backlight, control backlight light and luminance is adjusted.
3. display panel positioning device according to claim 2, it is characterised in that:
The monitor the first picture of changeable display and the second picture；Display panel is divided into N number of subregion；
First picture is the overall picture of display panel, to (1≤n≤N, and n, N are integer) son n-th shown by the first picture
Region is clicked, and the center of the camera is made to be moved to the center of the n-th subregion of display panel, and camera is moved along Z-direction
Dynamic zoom, monitor switch to the picture that the second picture shows the n-th subregion.
4. a kind of defect positioning method of display panel, applied to the defect positioning device of display panel as claimed in claim 3,
Characterized in that it comprises the following steps:
Step 1: being pre-seted to the defect positioning device of the display panel；
Step 2: defect coordinate measures, including following sub-step:
Step21: by the fixed simultaneously lighting of display panel, at least two correspondence markings is grabbed, determine the first label coordinate (Xa1, Ya1)
With the second label coordinate (Xa2, Yb2)；By respectively with the first preset mark coordinate (Xa, Ya) and the second preset mark coordinate (Xb,
Yb) contrast conting, obtain the position compensating value (X of display paneloffset, Yoffset)；
Step22: monitor shows the first picture, and confirmation defect is located at the n-th subregion of panel, by click monitor the
The center of n-th subregion shown by one picture, mobile unit control camera is moved to the regional center of the n-th subregion, camera
Zoom, monitor switch to the picture that the second picture shows the n-th subregion, determine defective locations by monitor and demarcate, obtain
To defect coordinate (X1, Y1)；
Step23: conversion obtains the pixel coordinate (A, B) of sub-pixel locating for defect.
5. display panel positioning device according to claim 2, it is characterised in that:
The monitor includes first area and second area, and monitor in first area can show the first picture simultaneously and the
Two regions show the second picture；Display panel is divided into N number of subregion；
First picture shown by first area be display panel overall picture, with n-th shown by the first picture (1≤n≤N,
And n, N are integer) subregion clicked, and so that the center of the camera is moved to the center of the n-th subregion of display panel, phase
Machine moves zoom along Z-direction, and the second screen switching shown by second area is the picture of the n-th subregion.
6. a kind of defect positioning method of display panel, applied to the defect positioning device of the display panel described in claim 5,
Characterized in that it comprises the following steps:
Step 1: being pre-seted to the defect positioning device of the display panel；
Step 2: defect coordinate measures, including following sub-step:
Step21: by the fixed simultaneously lighting of display panel, at least two correspondence markings is grabbed, determine the first label coordinate (Xa1, Ya1)
With the second label coordinate (Xa2, Yb2)；By respectively with the first preset mark coordinate (Xa, Ya) and the second preset mark coordinate (Xb,
Yb) contrast conting, obtain the position compensating value (X of paneloffset, Yoffset)；
Step22: the first area of monitor shows the first picture, and confirmation defect is located at the n-th subregion of panel, by clicking
The center of n-th subregion shown by first picture, mobile unit control camera is moved to the regional center of the n-th subregion, phase
Machine zoom, the second screen switching shown by second area are the picture of the n-th subregion, determine defective locations simultaneously by monitor
Calibration, obtains defect coordinate (X1, Y1)；
Step23: conversion obtains the pixel coordinate (A, B) of sub-pixel locating for defect.
7. the defect positioning method of the display panel according to claim 4 or 6, which is characterized in that the pixel coordinate is full
Foot:
A=(X1+Xoffset-X0)/x；B=(Y1+Yoffset-Y0)/y；
Wherein, (A, B) is the pixel coordinate of sub-pixel locating for defect, (X1, Y1) it is defect coordinate, (Xoffset, Yoffset) it is display
The position compensating value of panel, (X0, Y0) it is panel origin, x is first direction sub-pixel spacing, and y is second direction sub-pixel
Spacing.
8. the defect positioning method of the display panel according to claim 4 or 6, which is characterized in that the first step includes
Following sub-step:
Step11: the resolution of display panel is set；
Step12: setting first direction sub-pixel spacing x and second direction sub-pixel spacing y；
Step13: camera is moved to equipment origin (0,0)；
Step14: the face plate indicia type and predeterminated position that setting needs to grab include at least the first preset mark coordinate (Xa,
Ya) and the second preset mark coordinate (Xb, Yb)；
Step15: camera is moved to panel origin, records the coordinate (X of panel origin0, Y0)。
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Effective date of registration: 20200828 Address after: No.7 Tianyou Road, Qixia District, Nanjing City, Jiangsu Province Applicant after: NANJING CEC PANDA FPD TECHNOLOGY Co.,Ltd. Address before: Nanjing Crystal Valley Road in Qixia District of Nanjing City Tianyou 210033 Jiangsu province No. 7 Applicant before: NANJING CEC PANDA FPD TECHNOLOGY Co.,Ltd. Applicant before: NANJING CEC PANDA LCD TECHNOLOGY Co.,Ltd. Applicant before: NANJING HUADONG ELECTRONICS INFORMATION & TECHNOLOGY Co.,Ltd. |
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