CN102736280A - Polarizing plate attached precision detection device and method - Google Patents
Polarizing plate attached precision detection device and method Download PDFInfo
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- CN102736280A CN102736280A CN2012101605799A CN201210160579A CN102736280A CN 102736280 A CN102736280 A CN 102736280A CN 2012101605799 A CN2012101605799 A CN 2012101605799A CN 201210160579 A CN201210160579 A CN 201210160579A CN 102736280 A CN102736280 A CN 102736280A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/14—Measuring arrangements characterised by the use of optical techniques for measuring distance or clearance between spaced objects or spaced apertures
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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
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/133528—Polarisers
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Abstract
The invention discloses a polarizing plate attached precision detection device relating to the field of display panel manufacturing. The polarizing plate attached precision detection device comprises an image collecting unit and a precision detection control unit, wherein the image collecting unit is used for collecting an image of a substrate to be detected attached on a polarizing plate and analyzing a distance value from the polarizing plate to the edge of the substrate according to the image; and the precision detection control unit is connected with the image collecting unit, is used for comparing the distance value with a pre-set standard value range, and gives an alarm if the distance value is not in the standard value range. The invention also discloses a polarizing plate attached precision detection method. By utilizing the polarizing plate attached precision detection device and the polarizing plate attached precision detection method, the attached detection precision of the polarizing plate is improved.
Description
Technical field
The present invention relates to display panel manufacturing technology field, particularly a kind of Polarizer attaches accuracy detecting device and method.
Background technology
It is extremely important one procedure in TFT LCD (TFT-LCD) manufacturing process that Polarizer attaches, and it is that Polarizer is pasted to glass baseplate surface.Its edge was weighed to the distance at glass substrate edge after Polarizer attaching precision attached completion through Polarizer, and the more little precision of distance is high more, otherwise the big more precision of distance is low more.Owing to attach the quality of precision, can directly have influence on the display effect of TFT-LCD, therefore, need attach precision to Polarizer and detect.
At present, the operating personnel manually inspects by random samples the attaching precision of product through 10 times of magnification eyepieces, and accuracy of detection is low, and accuracy of detection can only guarantee 0.1mm; Because it is long that for detecting manually, detection speed is slow, individual panel (Panel) detects the time consuming time; Detection speed is slow, can only take the mode inspected by random samples, and therefore, the attaching precision that can't guarantee each Panel all is qualified, and the omission defective products makes defective products flow into lower procedure easily.In addition; Need special supervisory personnel to carry out correspondence and detect, produce huge human cost, and adopt and manually write down the testing result that attaches precision; Elapsed time not only; And the difficult preservation of measurement result, the operating personnel manually carries out picking and placeing of Panel, causes adverse consequencess such as Panel breakage easily.
Summary of the invention
The technical matters that (one) will solve
The technical matters that the present invention will solve is: how to improve the accuracy that Polarizer attaches accuracy detection.
(2) technical scheme
For solving the problems of the technologies described above, the invention provides a kind of Polarizer and attach accuracy detecting device, comprising:
Image acquisition units is used to gather the image of the substrate to be measured that attaches Polarizer, and goes out the distance value of Polarizer apart from substrate edges according to said image analysis;
The accuracy detection control module connects said image acquisition units, is used for said distance value and the comparison of predefined standard value range, if said distance value not in standard value range, is then reported to the police.
Wherein, Also comprise: the mechanical motion unit; Connect said image acquisition units and accuracy detection control module; Said accuracy detection control module also is used for controlling the said image acquisition units of said mechanical motion unit drives and said substrate to be measured moves according to preset positional parameter, makes image acquisition units gather the image of substrate assigned address to be measured.
Wherein, said mechanical motion unit comprises: erecting frame and be positioned at first detent mechanism, second detent mechanism and the connecting gear of said erecting frame;
First detent mechanism is used under the control of said accuracy detection control module clamping said substrate to be measured and makes it move and locate at vertical/transverse direction, sends a signal to said accuracy detection control module behind the location;
Second detent mechanism is used under the control of said accuracy detection control module, making image acquisition units to move and locate at vertical/transverse direction;
Connecting gear is used under the control of said accuracy detection control module, transmitting said substrate to be measured and vertically moves.
Wherein, First detent mechanism comprises: first servomotor, vertical push cylinder, sensor, horizontal fastening mobile mechanism and a vertical mechanism of inferring; Laterally fastening mobile mechanism comprises and vertically moves plate and intermediate plate; Intermediate plate is fixed on the track that vertically moves plate slidably, and said first servomotor is used to drive said intermediate plate and clamps substrate to be measured and the be along the longitudinal movement track of plate of said intermediate plate is laterally moved under the control of said accuracy detection control module; Said connecting gear is used for vertically transmitting the said plate that vertically moves; Said vertical push cylinder is used to drive the said vertical said plate that vertically moves of a mechanism urges of inferring to moving in the opposite direction with the vertical sender of said connecting gear under the control of said accuracy detection control module, said sensor is used to detect substrate to be measured and props up and vertically send signal to said accuracy detection control module after inferring a mechanism.
Wherein, Second detent mechanism comprises: second servomotor, the 3rd servomotor, transverse-moving mechanism and vertical shift mechanism; Said transverse-moving mechanism comprises transverse plate and longitudinal extension plate; The longitudinal extension plate is fixed in the track of transverse plate slidably, and second servomotor is used to drive the longitudinal extension plate and laterally moves along the track on the transverse plate under the control of said accuracy detection control module; Said vertical shift mechanism is fixed in the track of said longitudinal extension plate slidably, and the 3rd servomotor is positioned on the longitudinal extension plate, under the control of said accuracy detection control module, is used to drive the track that vertical shift mechanism extends longitudinally on the plate and vertically moves.
Wherein, connecting gear comprises: the 4th servomotor, the 5th servomotor and two groups of delivery wheels, said the 4th servomotor and the 5th servomotor are used for respectively driving one group of delivery wheel and rotate under the control of said accuracy detection control module.
Wherein, also comprise: with the input-output unit that said accuracy detection control module is connected, be used to import said standard value range and said positional parameter, and the output testing result.
Wherein, also comprise:, be used to adjust the acquisition parameter of the camera of said image acquisition units with the joystick that said image acquisition units is connected.
The present invention also provides a kind of Polarizer to attach accuracy checking method, may further comprise the steps:
S1: gather the image of the substrate to be measured that attaches Polarizer, and go out the distance value of Polarizer apart from substrate edges according to said image analysis;
S2: with said distance value and the comparison of predefined standard value range, if said distance value not in standard value range, is then reported to the police.
Wherein, before the image of gathering the substrate to be measured that attaches Polarizer, also comprise step:
S0: clamp said substrate to be measured, and move said substrate to be measured and camera, make camera gather the image of assigned address on the said substrate to be measured according to preset positional parameter.
Wherein, said step S0 comprises step: clamp said substrate to be measured and move to the fixed position, camera moves to said positional parameter appointed positions according to preset positional parameter then.
Wherein, also comprise step between said step S0 and the S1: the acquisition parameter of regulating camera.
Wherein, going out Polarizer according to said image analysis among the said step S1 comprises apart from the step of the distance value of substrate edges:
Obtain the pixel value of several millimeters corresponding cameras of Steel Ruler according to any several millimeters image of Steel Ruler of the master scale of prior collection;
Pixel value and millimeter value are carried out division arithmetic, obtain the ratio value of pixel value and millimeter value;
The pixel value that will attach Polarizer Edge Distance substrate edges in the image of substrate to be measured of Polarizer according to said ratio value converts the distance value of representing with long measure to.
Wherein, after detecting distance value, also comprise the step of storing said distance value, statistics qualification rate after detection is accomplished, and storage statistics.
(3) beneficial effect
Polarizer of the present invention attaches accuracy detecting device and method obtains the distance value of Polarizer edge to substrate edges through the real-time image of gathering substrate to be measured of camera; Attach precision through this distance value and standard value range to recently judging Polarizer, thereby improved the accuracy of detection that Polarizer attaches.
Description of drawings
Fig. 1 is that a kind of Polarizer of the embodiment of the invention 1 attaches the accuracy detecting device structural representation;
Fig. 2 is the synoptic diagram of the substrate behind the attaching Polarizer;
Fig. 3 is that a kind of Polarizer of the embodiment of the invention 2 attaches the accuracy detecting device structural representation;
Fig. 4 is the structural representation (vertical view) that Polarizer attaches mechanical motion unit in the accuracy detecting device among Fig. 3.
Embodiment
Below in conjunction with accompanying drawing and embodiment, specific embodiments of the invention describes in further detail.Following examples are used to explain the present invention, but are not used for limiting scope of the present invention.
Embodiment 1
As shown in Figure 1; The Polarizer of present embodiment attaches accuracy detecting device and comprises: image acquisition units and accuracy detection control module; Image acquisition units connects the accuracy detection control module; Be used to gather the image of the substrate to be measured that attaches Polarizer, and go out the distance value of Polarizer apart from substrate edges according to image analysis.The accuracy detection control module connects said image acquisition units, is used for said distance value and the comparison of predefined standard value range, if said distance value not in standard value range, is then reported to the police.
In the present embodiment, image acquisition units comprises: camera (a plurality of cameras can be arranged), image processor and power supply.Camera is connected with image processor through data line, and power supply is camera and image processor power supply.Camera sends to image processor with the image that collects and handles.Image processor is resolved this image, obtains the pixel value of Polarizer Edge Distance substrate edges in the image.As shown in Figure 2, be the synoptic diagram of the substrate 2 that is pasted with Polarizer 1.Camera sends to image processor with the image of this substrate 2, and image processor obtains the pixel value at Polarizer 1 Edge Distance substrate 2 edges from image, for example obtains the pixel value that is labeled as 5 place's Polarizers, 1 Edge Distance substrate, 2 edges.Image processor converts pixel value to the distance value of representing with long measure mm.Concrete conversion regime is: the image to the Steel Ruler that master scale is arranged is any several millimeters is gathered; Thereby obtain the pixel value of several millimeters corresponding cameras of Steel Ruler; Pixel value and millimeter value are carried out division arithmetic; Thereby obtain the ratio value of pixel value and millimeter value, pixel value is converted to the distance value of representing with long measure according to this ratio value.Image processor is transferred to the accuracy detection control module through the serial line interface on it with this distance value.
In the present embodiment, the accuracy detection control module is that (Programmable Logic Controller PLC), mainly comprises programmable logic controller (PLC): CPU, serial line interface and some storer (not shown)s.CPU accomplishes the logic control of total system through pre-designed PLC program.Serial line interface is used for PLC and above-mentioned image processor carries out data transmission.CPU obtains the distance value that image processor transmits according to pre-designed PLC program, distance value and preset standard value range is compared, if distance value is in standard value range; Explain that then Polarizer attaching precision is higher on the substrate to be detected; This substrate is specification product, otherwise gives a warning, as the alarm luminous and sounding type on the PLC with the prompting user; Simultaneously can trigger the Polarizer attaching device immediately and stop automatically, so that the staff in time adjusts the Polarizer attaching device.Above-mentioned pre-designed PLC program, standard value range and other correlation parameters can be written in the storer of PLC through the mode of host computer programming.
Above-mentioned image acquisition units can adopt existing image capture device to realize, the accuracy detection control module can also adopt based on FPGA and CPLD control chip and realize except PLC.
Further, more accurate in order to make accuracy detection, the Polarizer of present embodiment attaches accuracy detecting device and also comprises joystick.Joystick is connected with image processor, realizes the control to camera through image processor, is used to select the regional extent of photographic images, as regulate the acquisition parameter of camera through handle.As when gathering,, change the area size of photographic images through the focal length of the adjustment of the button on handle camera; Parameters such as adjustment time shutter, brightness make that Polarizer edge and glass substrate edge are more clear in the image, the error when reducing image analysis, thus make accuracy detection more accurate.
Further, because in the line flow procedure of reality, each size of substrate of producing is different, and is therefore also different to the requirement of precision, for ease according to different size of substrate established standards value scope and show the distance value that detects in real time.The Polarizer of present embodiment attaches accuracy detecting device and also comprises input-output device, i.e. touch-screen.Touch-screen is connected with PLC; Standard value range and other related parameter values in the storer of PLC are set through this touch-screen in real time; The mode that need not at every turn programme through host computer writes parameter, and can the distance value that detect be shown on the touch-screen in real time, and user experience is provided.
The Polarizer of present embodiment attaches accuracy detecting device and obtains the distance value of Polarizer edge to substrate edges through the real-time image of gathering substrate to be measured of camera; Attach precision through this distance value and standard value range to recently judging Polarizer; Because the high pixel of camera can make measuring accuracy reach 20um.Thereby improved the accuracy of detection that Polarizer attaches.
This device is arranged on the streamline; Substrate behind the attaching Polarizer on the pipeline carries out online detection; Guaranteed that every Panel can both attach the detection of precision; Avoid bad product to flow into lower procedure, practiced thrift human cost simultaneously, the damage of also having avoided personnel operation that Panel is caused.
In order to reach better accuracy of detection, the Polarizer of present embodiment attaches accuracy detecting device and on the basis of embodiment 1, improves, and has increased the mechanical motion unit.As shown in Figure 3, the mechanical motion unit connects image acquisition units and accuracy detection control module.The accuracy detection control module is used for controlling mechanical moving cell driven image collecting unit and substrate to be measured moves according to preset positional parameter, makes image acquisition units gather the image of substrate assigned address to be measured.
The concrete structure of mechanical motion unit is as shown in Figure 4, comprising: erecting frame 3 and be installed in first detent mechanism, second detent mechanism and the connecting gear in the erecting frame 3.
First detent mechanism is used to clamp said substrate to be measured and makes it move and locate at vertical/transverse direction.In the present embodiment; First detent mechanism comprises: servomotor 11, vertical push cylinder (not shown), sensor (not shown), horizontal fastening mobile mechanism and the vertical mechanism 26 of inferring; Laterally fastening mobile mechanism comprises and vertically moves plate 31 and 15, two intermediate plates 15 of two intermediate plates are fixed on the track that vertically moves plate 31 slidably.Servomotor 11 laterally moves at the track that drives under the control of accuracy detection control module on two intermediate plates, the 15 clamping substrates to be measured and the plate 31 that can be along the longitudinal movement, thereby makes substrate to be measured along laterally moving.Clamped substrate to be measured drives whole horizontal fastening mobile mechanism and vertically moves under the transmission of connecting gear; Move to a vertical mechanism 26 places of inferring always; Connecting gear stops to transmit; Vertical push cylinder drives the vertical mechanism 26 of inferring to mobile in the opposite direction with the vertical sender of connecting gear under the control of accuracy detection control module, prop up to indulge and infer a mechanism 26 so that obtain substrate to be measured, positions collection thereby substrate to be measured is moved to the fixed position to make things convenient for image acquisition units.Sensor is used to detect substrate to be measured to be withstood and vertical sends signal to the accuracy detection control module after inferring a mechanism.The accuracy detection control module receives that the control connecting gear stops to transmit behind this signal, and controls second detent mechanism and position according to preset positional parameter.
Wherein, first detent mechanism is not limited to the implementation of present embodiment.Vertical push cylinder also can adopt a servomotor to realize, or servomotor 11 and corresponding gear set thereof realize, props up the vertical mechanism 26 of inferring to reach substrate to be measured.Laterally fastening mobile mechanism can be one can clamp substrate to be measured can laterally move the moving component that can vertically move again along planned orbit, sensor can be a pressure transducer.
Second detent mechanism is used to make image acquisition units to move and locate at vertical/transverse direction.In the present embodiment, second detent mechanism comprises: servomotor 9, servomotor 10, transverse-moving mechanism and vertical shift mechanism 29.Transverse-moving mechanism comprises transverse plate 27 and longitudinal extension plate 28, and longitudinal extension plate 28 is fixed in the track of transverse plate 27 slidably.Servomotor 9 laterally moves along the track on the transverse plate 27 at driving longitudinal extension plate 28 under the control of accuracy detection control module.Servomotor 10 is positioned on the longitudinal extension plate 28, and vertical shift mechanism 29 is fixed in the track of said longitudinal extension plate 28 slidably.Vertically move at the track that driving vertical shift mechanism 29 under the control of accuracy detection control module extends longitudinally on the plate 28 at servomotor 10.The camera 16 of image acquisition units is fixed in the vertical shift mechanism 29, and laterally mobile and the vertically moving of vertical shift mechanism of longitudinal extension plate 28 makes camera 16 horizontal and vertically to move.
Wherein, second detent mechanism is not limited to the implementation of present embodiment.Servomotor 9 also can adopt a servomotor and corresponding gear set thereof to realize with servomotor 10.Transverse-moving mechanism and vertical shift mechanism 29 can be one can laterally move the moving component that is loaded with camera that can vertically move again along planned orbit.
Connecting gear is used to transmit substrate to be measured, makes it on streamline, flow into, stop the Polarizer attaching accuracy detecting device that detects and flow out present embodiment.In the present embodiment, transmit the structure machine and comprise: servomotor 12, servomotor 13 and two groups of delivery wheels 14 that drive by servomotor 12 and 13 respectively.Servomotor 12 and 13 drives two groups of delivery wheels 14 respectively under the control of accuracy detection control module.Sensor to substrate to be measured move to vertical infer a mechanism 26 and prop up after, send a signal to the accuracy detection control module, stop to drive two groups of delivery wheels 14 with control servomotor 12 with servomotor 13, in order to avoid scratch substrate.When transmitting; First group of delivery wheel 14 transmits a substrate to be measured; Two intermediate plates 15 pick up location, back, images acquired with it; First group of delivery wheel 14 can transmit next substrate to be measured to the zone wait that is picked up simultaneously, and first substrate to be measured is sent to next flow process through second group of delivery wheel 14 after detecting, and can improve detection efficiency like this.Certainly connecting gear also can be an electric servomotor and by one group of delivery wheel of this driven by servomotor, or the many groups delivery wheel that is driven by this servomotor and corresponding gear set.
Because substrate to be measured is fixed through first detent mechanism, camera 16 can be gathered the image of a plurality of fixed positions on the substrate to be measured through second detent mechanism, makes accuracy of detection more accurate.
In order to realize the location, the accuracy detection control module (PLC) of present embodiment is different with embodiment 1, also comprises: positioning control module and servo-driver, servo-driver connects the positioning control module.The positioning control module is controlled servo driver drives servomotor separately to realize the location to camera 16 and substrate to be measured according to preset positional parameter; Make camera 16 can gather the image of assigned address, can set many group positional parameters simultaneously to gather the image of a plurality of assigned addresses.As shown in Figure 2, can set the image of four groups of positional parameters with 5,6,7 and 8 places on the edge of gathering Polarizer 1 and substrate 2.Realized the many places at edge are detected, thereby made accuracy detection more accurate.Positional parameter is set preferably through being touch-screen setting.Preset positional parameter is under the coordinate system that PLC sets up, the coordinate of specified point (like 5,6,7 and 8 places among Fig. 2) on the edge of Polarizer 1 and substrate 2.PLC has been a very proven technique of program control field to the control of servomotor and vertical push cylinder etc., repeats no more here.
In the present embodiment, the concrete structure of image acquisition units and acquisition principle and embodiment 1 are similar, repeat no more here.
The Polarizer of present embodiment attaches the location that accuracy detecting device has adopted the mechanical motion unit to realize camera and substrate to be measured, and it is more accurate than embodiment 1 to make that Polarizer attaches accuracy detection.
Embodiment 3
Present embodiment provides a kind of Polarizer to attach accuracy checking method, and this method can adopt but the device that is not limited to the foregoing description 1 or embodiment 2 is realized, may further comprise the steps:
Gather the image of the substrate to be measured that attaches Polarizer, and go out the distance value of Polarizer apart from substrate edges according to this image analysis, the step of resolving distance value is:
Obtain the pixel value of several millimeters corresponding cameras of Steel Ruler according to any several millimeters image of Steel Ruler of the master scale of prior collection; Pixel value and millimeter value are carried out division arithmetic, obtain the ratio value of pixel value and millimeter value; The pixel value that will attach Polarizer Edge Distance substrate edges in the image of substrate to be measured of Polarizer according to said ratio value converts the distance value of representing with long measure to.
With distance value and the comparison of predefined standard value range, if distance value not in standard value range, is then reported to the police.Standard value range can be set according to actual conditions, as: size of substrate is different, and standard value range is different.
In order to gather the image of assigned address on the substrate to be measured; Before the image of gathering the substrate to be measured that attaches Polarizer, also comprise step: clamp substrate to be measured; And move substrate to be measured and/or camera, make the image of assigned address on the said substrate to be measured of camera collection.Concrete mode is for clamping substrate to be measured and moving to the fixed position, and camera moves to the positional parameter appointed positions according to preset positional parameter then.Wherein, in order to gather the image of assigned address, the acquisition parameter of adjustment camera before the image of gathering assigned address clearerly.As when gathering,, change the area size of photographic images through the focal length of the adjustment of the button on handle camera; Parameters such as adjustment time shutter, brightness make that Polarizer edge and glass substrate edge are more clear in the image, the error when reducing image analysis, thus make accuracy detection more accurate.
After detecting distance value, also comprise the step of storing this distance value, statistics qualification rate after detection is accomplished, and storage statistics.
The image that the method camera of present embodiment is gathered substrate to be measured in real time obtains the distance value of Polarizer edge to substrate edges; Attach precision through this distance value and standard value range to recently judging Polarizer; Because the high pixel of camera can make measuring accuracy reach 20um.Thereby improved the accuracy of detection that Polarizer attaches.But and its this method on-line implement; Guaranteed that every Panel can both attach the detection of precision, avoided bad product to flow into lower procedure, made things convenient for the statistics of testing result simultaneously; Practiced thrift human cost, the damage of also having avoided personnel operation that Panel is caused.
Above embodiment only is used to explain the present invention; And be not limitation of the present invention; The those of ordinary skill in relevant technologies field under the situation that does not break away from the spirit and scope of the present invention, can also be made various variations and modification; Therefore all technical schemes that are equal to also belong to category of the present invention, and scope of patent protection of the present invention should be defined by the claims.
Claims (14)
1. a Polarizer attaches accuracy detecting device, it is characterized in that, comprising:
Image acquisition units is used to gather the image of the substrate to be measured that attaches Polarizer, and goes out the distance value of Polarizer apart from substrate edges according to said image analysis;
The accuracy detection control module connects said image acquisition units, is used for said distance value and the comparison of predefined standard value range, if said distance value not in standard value range, is then reported to the police.
2. Polarizer as claimed in claim 1 attaches accuracy detecting device; It is characterized in that; Also comprise: the mechanical motion unit; Connect said image acquisition units and accuracy detection control module, said accuracy detection control module also is used for controlling the said image acquisition units of said mechanical motion unit drives and said substrate to be measured moves according to preset positional parameter, makes image acquisition units gather the image of substrate assigned address to be measured.
3. Polarizer as claimed in claim 2 attaches accuracy detecting device, it is characterized in that said mechanical motion unit comprises: erecting frame and be positioned at first detent mechanism, second detent mechanism and the connecting gear of said erecting frame;
First detent mechanism is used under the control of said accuracy detection control module clamping said substrate to be measured and makes it move and locate at vertical/transverse direction, sends a signal to said accuracy detection control module behind the location;
Second detent mechanism is used under the control of said accuracy detection control module, making image acquisition units to move and locate at vertical/transverse direction;
Connecting gear is used under the control of said accuracy detection control module, transmitting said substrate to be measured and vertically moves.
4. Polarizer as claimed in claim 3 attaches accuracy detecting device; It is characterized in that; First detent mechanism comprises: first servomotor, vertical push cylinder, sensor, horizontal fastening mobile mechanism and a vertical mechanism of inferring; Laterally fastening mobile mechanism comprises and vertically moves plate and intermediate plate; Intermediate plate is fixed on the track that vertically moves plate slidably, and said first servomotor is used to drive said intermediate plate and clamps substrate to be measured and the be along the longitudinal movement track of plate of said intermediate plate is laterally moved under the control of said accuracy detection control module; Said connecting gear is used for vertically transmitting the said plate that vertically moves; Said vertical push cylinder is used to drive the said vertical said plate that vertically moves of a mechanism urges of inferring to moving in the opposite direction with the vertical sender of said connecting gear under the control of said accuracy detection control module, said sensor is used to detect substrate to be measured and props up and vertically send signal to said accuracy detection control module after inferring a mechanism.
5. Polarizer as claimed in claim 3 attaches accuracy detecting device; It is characterized in that; Second detent mechanism comprises: second servomotor, the 3rd servomotor, transverse-moving mechanism and vertical shift mechanism; Said transverse-moving mechanism comprises transverse plate and longitudinal extension plate, and the longitudinal extension plate is fixed in the track of transverse plate slidably, and second servomotor is used to drive the longitudinal extension plate and laterally moves along the track on the transverse plate under the control of said accuracy detection control module; Said vertical shift mechanism is fixed in the track of said longitudinal extension plate slidably, and the 3rd servomotor is positioned on the longitudinal extension plate, under the control of said accuracy detection control module, is used to drive the track that vertical shift mechanism extends longitudinally on the plate and vertically moves.
6. Polarizer as claimed in claim 3 attaches accuracy detecting device; It is characterized in that; Connecting gear comprises: the 4th servomotor, the 5th servomotor and two groups of delivery wheels, said the 4th servomotor and the 5th servomotor are used for respectively driving one group of delivery wheel and rotate under the control of said accuracy detection control module.
7. Polarizer as claimed in claim 2 attaches accuracy detecting device, it is characterized in that, also comprises: with the input-output unit that said accuracy detection control module is connected, be used to import said standard value range and said positional parameter, and the output testing result.
8. Polarizer as claimed in claim 1 attaches accuracy detecting device, it is characterized in that, also comprises: with the joystick that said image acquisition units is connected, be used to adjust the acquisition parameter of the camera of said image acquisition units.
9. a Polarizer attaches accuracy checking method, it is characterized in that, may further comprise the steps:
S1: gather the image of the substrate to be measured that attaches Polarizer, and go out the distance value of Polarizer apart from substrate edges according to said image analysis;
S2: with said distance value and the comparison of predefined standard value range, if said distance value not in standard value range, is then reported to the police.
10. Polarizer as claimed in claim 9 attaches accuracy checking method, it is characterized in that, before the image of gathering the substrate to be measured that attaches Polarizer, also comprises step:
S0: clamp said substrate to be measured, and move said substrate to be measured and camera, make camera gather the image of assigned address on the said substrate to be measured according to preset positional parameter.
11. Polarizer as claimed in claim 10 attaches accuracy checking method; It is characterized in that; Said step S0 comprises step: clamp said substrate to be measured and move to the fixed position, camera moves to said positional parameter appointed positions according to preset positional parameter then.
12. Polarizer as claimed in claim 10 attaches accuracy checking method, it is characterized in that, also comprises step between said step S0 and the S1: the acquisition parameter of regulating camera.
13. Polarizer as claimed in claim 9 attaches accuracy checking method, it is characterized in that, goes out Polarizer according to said image analysis among the said step S1 and comprises apart from the step of the distance value of substrate edges:
Obtain the pixel value of several millimeters corresponding cameras of Steel Ruler according to any several millimeters image of Steel Ruler of the master scale of prior collection;
Pixel value and millimeter value are carried out division arithmetic, obtain the ratio value of pixel value and millimeter value;
The pixel value that will attach Polarizer Edge Distance substrate edges in the image of substrate to be measured of Polarizer according to said ratio value converts the distance value of representing with long measure to.
14. Polarizer as claimed in claim 9 attaches accuracy checking method, it is characterized in that, after detecting distance value, also comprises the step of storing said distance value, statistics qualification rate after detection is accomplished, and storage statistics.
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| CN2012101605799A CN102736280A (en) | 2012-05-22 | 2012-05-22 | Polarizing plate attached precision detection device and method |
| PCT/CN2012/084848 WO2013174112A1 (en) | 2012-05-22 | 2012-11-19 | Polarizing plate attachment precision detection device and method |
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| CN2012101605799A CN102736280A (en) | 2012-05-22 | 2012-05-22 | Polarizing plate attached precision detection device and method |
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| WO2013174112A1 (en) * | 2012-05-22 | 2013-11-28 | 北京京东方光电科技有限公司 | Polarizing plate attachment precision detection device and method |
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