CN106249450A - A kind of LCDs detecting system - Google Patents
A kind of LCDs detecting system Download PDFInfo
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- CN106249450A CN106249450A CN201610804536.8A CN201610804536A CN106249450A CN 106249450 A CN106249450 A CN 106249450A CN 201610804536 A CN201610804536 A CN 201610804536A CN 106249450 A CN106249450 A CN 106249450A
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- 230000003287 optical effect Effects 0.000 claims abstract description 42
- 238000003384 imaging method Methods 0.000 claims abstract description 4
- 238000001514 detection method Methods 0.000 claims description 53
- 239000000284 extract Substances 0.000 claims description 3
- 239000013078 crystal Substances 0.000 claims 3
- 239000007788 liquid Substances 0.000 claims 3
- 239000004973 liquid crystal related substance Substances 0.000 abstract description 16
- 238000012360 testing method Methods 0.000 abstract description 7
- 238000000034 method Methods 0.000 description 11
- 230000007547 defect Effects 0.000 description 8
- 238000004364 calculation method Methods 0.000 description 5
- 238000005516 engineering process Methods 0.000 description 5
- 230000000007 visual effect Effects 0.000 description 3
- 238000007689 inspection Methods 0.000 description 2
- 238000010420 art technique Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
- 238000012372 quality testing Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/1306—Details
- G02F1/1309—Repairing; Testing
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- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Liquid Crystal (AREA)
- Testing Of Optical Devices Or Fibers (AREA)
Abstract
The open a kind of LCDs detecting system of the present invention, controls frock, industrial control computer, the first industrial camera and the first optical lens including display screen frock, reflecting mirror, reflecting mirror；Industrial control computer controls frock with reflecting mirror respectively and the first industrial camera is connected, and reflecting mirror controls frock and is also connected with reflecting mirror, and the first industrial camera, the first optical lens and LCDs to be detected are positioned at the side that reflecting mirror is reflective；LCDs to be detected is carried in display screen frock, and imaging in reflecting mirror；Reflecting mirror controls frock control reflecting mirror and is sequentially adjusted in multiple angles；First industrial camera coordinates the first optical lens collection mirror image of liquid crystal display screen image to be detected when each angle, and sends an image to industrial control computer；According to image, industrial control computer detects whether LCDs to be detected has gross imperfection.The present invention can reduce system installing space when detecting LCDs gross imperfection and testing cost.
Description
Technical field
The present invention relates to LCDs quality testing and control technical field, particularly to a kind of LCDs detection
System.
Background technology
In recent years, LCDs technology develops more and more faster, and application scenario also gets more and more, such as TV, mobile phone,
The display screen majority of the various electronic equipment such as panel computer, intelligent vehicle-carried equipment all have employed LCDs.Along with people are raw
The raising of quality of living, people are more and more higher to the requirement of LCDs performance.To this end, manufacturer is also stepping up life
Production. art and detection technique, detect all kinds of LCDs defect being likely to occur, such as bright spot, stain, the black reversion of brightness, different
Thing, scuffing, mura, colour cast etc..
At present, in the detection technique of LCDs, detection method is gradually changed into machine by traditional eye-observation
Vision-based detection.When specifically detecting, for the defect of some microcosmic classes, i.e. under magnifier it is observed that defect, such as brightness
Point, stain etc., can shoot from surface with high resolution industrial camera and camera lens combination, and then utilize figure in general
As treatment technology detects.And for the defect of some macroscopic view classes, such as mura, colour cast etc., under magnifier, local is observed
It is difficult to find, and often with angularity, only observe in a certain angle, just can be found.Therefore, as it is shown in figure 1, phase
In the technology of pass, by the way of being respectively mounted industrial camera 11 and camera lens 12 at multiple visual angles, obtain LCDs 13 multiple
Image under visual angle, to realize the gross imperfections such as the detection mura of LCDs 13, colour cast.
Owing to the technical scheme of correlation technique is when detecting the gross imperfections such as the mura of LCDs, colour cast, need to join
Standby multiple industrial cameras and camera lens.For avoiding occurring between multiple industrial camera and camera lens mutually blocking, it is required to be multiple industry phase
Machine and camera lens provide enough installing spaces, so the technical scheme of correlation technique is required to be detecting system and provides installing space relatively
Greatly.It addition, be equipped with multiple industrial camera and camera lens too increases the testing cost of LCDs.
Summary of the invention
The embodiment of the present invention provides a kind of LCDs detecting system, scarce to reduce detection LCDs macroscopic view
System installing space when falling into and testing cost.
In order to solve above-mentioned technical problem, the embodiment of the invention discloses following technical scheme:
The embodiment of the present invention provides a kind of LCDs detecting system, described system include display screen frock, reflecting mirror,
Reflecting mirror controls frock, industrial control computer, the first industrial camera and the first optical lens；Described industrial control computer divides
Do not control frock with described reflecting mirror and described first industrial camera be connected, described reflecting mirror control frock also with described reflection
Mirror is connected, and described first industrial camera, described first optical lens and LCDs to be detected are respectively positioned on described reflecting mirror
Reflective side；Wherein, described LCDs to be detected is carried in described display screen frock, and becomes in described reflecting mirror
Picture；Described reflecting mirror control frock controls described reflecting mirror under the control of described industrial control computer and is sequentially adjusted in multiple
The angle one_to_one corresponding all to be detected of angle, the plurality of angle and described LCDs to be detected；Described first industry
Camera coordinates described first optical lens to gather described reflecting mirror in each angle under the control of described industrial control computer
Shi Suoshu LCDs to be detected image of picture in described reflecting mirror, and described image is sent to described Industry Control meter
Calculation machine；Described industrial control computer, when receiving described image, detects described liquid crystal display to be detected according to described image
Whether screen has gross imperfection.
Alternatively, described reflecting mirror control frock includes reflecting mirror fixing tool and reflecting mirror motion frock, described reflection
Mirror fixing tool is used for fixing described reflecting mirror, and described reflecting mirror motion frock is for the control at described industrial control computer
The lower described reflecting mirror of control moves with described reflecting mirror fixing tool, so that described reflecting mirror is sequentially adjusted in the plurality of
Angle.
Alternatively, when described system electrification, described industrial control computer controls frock to described reflecting mirror and initializes
Instruction, so that described reflecting mirror controls frock and initializes, angle residing for described reflecting mirror and described liquid crystal to be detected after initialization
The minimum angles of the angle to be detected of display screen or maximum angle are corresponding.
Alternatively, described industrial control computer to described reflecting mirror control frock send control signal so that described instead
Penetrate mirror and control the frock described reflecting mirror of control from an angle adjustment to another adjacent angle；One is completed at described reflecting mirror
During secondary angle adjustment, described industrial control computer sends image capture instruction to described first industrial camera, so that described the
One industrial camera coordinate when receiving described image capture instruction described first optical lens gather in described reflecting mirror as
In image, and the described reflecting mirror that will be collected, the image of picture is sent to described industrial control computer；Described Industry Control
The image that computer sends according to received described first industrial camera detects described LCDs to be detected in correspondence
Whether gross imperfection is had in angle to be detected；When described industrial control computer determines that described LCDs to be detected is in correspondence
When not having gross imperfection in angle to be detected, described industrial control computer again controls frock to described reflecting mirror and sends control
Signal, to complete the gross imperfection detection in next angle to be detected, when all not having after the detection completing all angles to be detected
When finding gross imperfection, determine that described LCDs to be detected is qualified.
Alternatively, determine that described LCDs to be detected is in corresponding angle to be detected when described industrial control computer
When having gross imperfection, stop the detection to described LCDs to be detected.
Alternatively, described industrial control computer to described reflecting mirror control frock send control signal so that described instead
Penetrate the mirror control frock described reflecting mirror of control and carry out an angle adjustment every Preset Time；Described industrial control computer is to institute
State the first industrial camera and send image capture instruction, so that described first industrial camera is when receiving described image capture instruction
Coordinate described first optical lens gather described reflecting mirror when each angle described LCDs to be detected in described reflection
In the image of picture in mirror, and the described reflecting mirror that will be collected, the image of picture is sent to described industrial control computer；Described
The image that industrial control computer sends according to received described first industrial camera detects described liquid crystal display to be detected
Whether screen has gross imperfection in each angle to be detected.
Alternatively, described industrial control computer, when receiving described image, extracts the monochrome information in described image
With color uniformity information, according to liquid crystal to be detected described in the monochrome information in described image and color uniformity infomation detection
Whether display screen has gross imperfection.
Alternatively, described display screen frock includes display screen carrying frock and back light, described display screen carrying frock
For carrying described LCDs to be detected, described back light is positioned at the underface of described display screen to be detected, be used for be
LCDs described to be detected in described display screen carrying frock provides backlight.
Alternatively, described system also includes the second industrial camera and the second optical lens, described second industrial camera and institute
Stating industrial control computer to be connected, described second industrial camera and described second optical lens are positioned at described display screen frock
Surface, described second industrial camera coordinates described second optical lens to gather institute under the control of described industrial control computer
State the image of LCDs to be detected, and the image of the LCDs described to be detected collected is sent to described work
Industry controls computer, so that described industrial control computer detects described to be checked according to the image of described LCDs to be detected
Survey whether LCDs has microdefect.
Alternatively, the primary optical axis of described first industrial camera and described second industrial camera is parallel to each other.
The technical scheme that embodiments of the invention provide can include following beneficial effect:
A kind of LCDs detecting system that the embodiment of the present invention provides, described system includes display screen frock, reflection
Mirror, reflecting mirror control frock, industrial control computer, the first industrial camera and the first optical lens；Described Industry Control calculates
Machine controls frock with described reflecting mirror respectively and described first industrial camera is connected, and described reflecting mirror controls frock also with described
Reflecting mirror is connected；Wherein, LCDs to be detected is carried in described display screen frock, and becomes in described reflecting mirror
Picture；Described reflecting mirror control frock controls described reflecting mirror under the control of described industrial control computer and is sequentially adjusted in multiple
The angle one_to_one corresponding all to be detected of angle, the plurality of angle and described LCDs to be detected；Described first industry
Camera coordinates described first optical lens to gather described reflecting mirror in each angle under the control of described industrial control computer
Shi Suoshu LCDs to be detected image of picture in described reflecting mirror, and described image is sent to described Industry Control meter
Calculation machine；Described industrial control computer, when receiving described image, detects described liquid crystal display to be detected according to described image
Whether screen has gross imperfection.
When applying the scheme of the embodiment of the present invention, utilize the image-forming principle of reflecting mirror by reflector alignment to be detected
The most multiple angle of angle all to be detected of LCDs, only need to utilize an industrial camera and an optical frames
Head collection mirror image of liquid crystal display screen image to be detected in reflecting mirror when each angle, can realize liquid crystal to be detected
The gross imperfection detection of display screen.Compared with correlation technique, owing to the cost of reflecting mirror control frock and reflecting mirror will be far below many
Individual industrial camera and the cost of multiple optical lens, so technical scheme can reduce LCDs detection macroscopic view
The testing cost of defect.Further, since it is real merely with an industrial camera and an optical lens in technical scheme
The gross imperfection detection of existing LCDs detection, so mutually hiding without the concern for multiple industrial cameras and multiple optical lens
The problem of gear, it is possible to reduce system installing space during LCDs detection gross imperfection.
It should be appreciated that it is only exemplary and explanatory, not that above general description and details hereinafter describe
The disclosure can be limited.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
In having technology to describe, the required accompanying drawing used is briefly described, it should be apparent that, for those of ordinary skill in the art
Speech, on the premise of not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
The structural representation of a kind of LCDs detecting system that Fig. 1 provides for prior art；
The structural representation of a kind of LCDs detecting system that Fig. 2 provides for the embodiment of the present invention；
The flow chart of a kind of LCDs detection method that Fig. 3 provides for the embodiment of the present invention.
Detailed description of the invention
The embodiment of the present invention provides a kind of LCDs detecting system, scarce to reduce detection LCDs macroscopic view
System installing space when falling into and testing cost.
For the technical scheme making those skilled in the art be more fully understood that in the embodiment of the present invention, and make the present invention real
Execute the above-mentioned purpose of example, feature and advantage can become apparent from understandable, below in conjunction with the accompanying drawings to technical side in the embodiment of the present invention
Case is described in further detail.
As in figure 2 it is shown, the structural representation of a kind of LCDs detecting system provided for the embodiment of the present invention, described
LCDs detecting system includes that display screen frock (being not drawn in figure), reflecting mirror 21, reflecting mirror control frock and (do not draw in figure
Go out), industrial control computer (being not drawn in figure), the first industrial camera 22 and the first optical lens 23；Described Industry Control meter
Calculation machine controls frock and described first industrial camera 22 with described reflecting mirror respectively and is connected, described reflecting mirror control frock also with
Described reflecting mirror 21 is connected, described first industrial camera 22, described first optical lens 23 and LCDs to be detected 24
It is respectively positioned on the side that described reflecting mirror 21 is reflective.
Wherein, when utilizing described LCDs detecting system detection LCDs, described liquid crystal display to be detected
Screen 24 is carried in described display screen frock, and imaging in described reflecting mirror 21.Described reflecting mirror controls frock in described work
Controlling described reflecting mirror 21 under the control of industry control computer to be sequentially adjusted in multiple angles, the plurality of angle is to be checked with described
Survey the angle one_to_one corresponding all to be detected of LCDs 24；Described first industrial camera 22 is at described industrial control computer
Control under coordinate described first optical lens 23 to gather described reflecting mirror 21 described liquid crystal display to be detected when each angle
Screen 24 is the image of picture 25 in described reflecting mirror, and described image is sent to described industrial control computer；Described industry control
According to described image, computer processed, when receiving described image, detects whether described LCDs 24 to be detected has macroscopic view to lack
Fall into.Here reflecting mirror 21 can be front surface mirror, it is also possible to back-surface mirror, preferably front surface mirror.Here
Angle to be detected can determine according to actually detected demand.Such as, multiple angles to be detected are 20 degree, 40 degree, 60 degree time, corresponding
Reflector alignment angle be 10 degree, 20 degree and 30 degree.The most such as, multiple angles to be detected can be 30 degree, 45 degree, 60 degree and
When 75 degree, corresponding reflector alignment angle is 15 degree, 22.5 degree, 30 degree and 37.5 degree of (light paths in schematic diagram as shown in Figure 1
Understand: angle [alpha] to be detected is equal to 2 times that adjust angle beta between primary optical axis and the reflecting mirror 21 of the first industrial camera 22).
Specifically, during the embodiment of the present invention is embodied as, described display screen frock is described to be detected in carrying
During LCDs 24, described LCDs 24 to be detected can be directly placed at the ad-hoc location of described display screen frock.Example
As, described display screen frock arranges the groove that mates with described LCDs 24 size to be detected, be used for placing described in
LCDs 24 to be detected.It addition, fixing described LCDs 24 to be detected can also be arranged in described display screen frock
Fixed mechanism.Such as, the clamping device clamping described LCDs 24 to be detected can be set in described display screen frock,
Described LCDs 24 to be detected is clamped on described clamping device.
Described reflecting mirror is controlled frock and directly can be connected with described reflecting mirror 21 by rotating shaft, controls at described reflecting mirror
Frock receive described industrial control computer send control signal time, drive described rotating shaft to rotate, so drive described instead
Penetrate mirror 21 and realize the adjustment between multiple angle.Wherein, when the embodiment of the present invention implements, described reflecting mirror controls frock
Can often receive the control signal that the most described industrial control computer sends, adjust the angle of the most described reflecting mirror 21.
Now, described industrial control computer can every the first specific duration (such as 5s, 10s etc.) to as described in reflecting mirror control frock send out
Send a secondary control signal, it is also possible to be that described reflecting mirror controls frock when often completing an angle adjustment, to described Industry Control
Computer send adjustment complete instruction, described industrial control computer receive described adjustment complete instruction time to described reflection
Mirror controls frock and sends a secondary control signal.Described reflecting mirror controls frock can also receive the most described Industry Control meter
After the control signal that calculation machine sends, every the angle of reflecting mirror 21 as described in the second specific duration (such as 5s, 8s etc.) adjustment once, depend on
The secondary adjustment realized between more than 21 angle of described reflecting mirror.Described first specific duration and the second specific duration are examined according to reality
Survey it needs to be determined that, determine that principle is that described first industrial camera 22 can be made to coordinate described first optical lens 23 to collect is described
When reflecting mirror 21 is in each angle adjusted, described LCDs 24 to be detected institute's imaging 25 in described reflecting mirror
Image.
In a kind of detailed description of the invention of the embodiment of the present invention, described reflecting mirror controls frock and may also comprise reflecting mirror admittedly
Determining frock and reflecting mirror motion frock, described reflecting mirror fixing tool is used for fixing described reflecting mirror 21, and described reflecting mirror moves
Frock is for controlling described reflecting mirror 21 with described reflecting mirror fixing tool under the control of described industrial control computer
Motion, so that described reflecting mirror 21 is sequentially adjusted in the plurality of angle.Such as, described reflecting mirror motion frock passes through gear
Structure and described reflecting mirror fixing tool connect, and rotate by controlling described reflecting mirror fixing tool, it is achieved described reflecting mirror 21 exists
Adjustment between multiple angles.This embodiment, owing to described reflecting mirror 21 is integrally fixed on described reflecting mirror fixing tool,
So this embodiment can reduce described reflecting mirror 21 owing to adjusting the impaired probability of angle.
Described industrial control computer, when receiving the image that described first industrial camera 22 sends, can extract image
The information such as monochrome information, color uniformity information, and according to information inspections such as the monochrome information extracted and color uniformity information
Survey whether described LCDs to be detected 24 has the gross imperfection such as mura, colour cast.
A kind of LCDs detecting system that the embodiment of the present invention provides, described system includes display screen frock, reflection
Mirror, reflecting mirror control frock, industrial control computer, the first industrial camera and the first optical lens；Described Industry Control calculates
Machine controls frock with described reflecting mirror respectively and described first industrial camera is connected, and described reflecting mirror controls frock also with described
Reflecting mirror is connected；Wherein, LCDs to be detected is carried in described display screen frock, and becomes in described reflecting mirror
Picture；Described reflecting mirror control frock controls described reflecting mirror under the control of described industrial control computer and is sequentially adjusted in multiple
The angle one_to_one corresponding all to be detected of angle, the plurality of angle and described LCDs to be detected；Described first industry
Camera coordinates described first optical lens to gather described reflecting mirror in each angle under the control of described industrial control computer
Shi Suoshu LCDs to be detected image of picture in described reflecting mirror, and described image is sent to described Industry Control meter
Calculation machine；Described industrial control computer, when receiving described image, detects described liquid crystal display to be detected according to described image
Whether screen has gross imperfection.
When applying the scheme of the embodiment of the present invention, utilize the image-forming principle of reflecting mirror by reflector alignment to be detected
The most multiple angle of angle all to be detected of LCDs, only need to utilize an industrial camera and an optical frames
Head collection mirror image of liquid crystal display screen image to be detected in reflecting mirror when each angle, can realize liquid crystal to be detected
The gross imperfection detection of display screen.Compared with correlation technique, owing to the cost of reflecting mirror control frock and reflecting mirror will be far below many
Individual industrial camera and the cost of multiple optical lens, so technical scheme can reduce LCDs detection macroscopic view
The testing cost of defect.Further, since it is real merely with an industrial camera and an optical lens in technical scheme
The gross imperfection detection of existing LCDs detection, so mutually hiding without the concern for multiple industrial cameras and multiple optical lens
The problem of gear, it is possible to reduce system installing space during LCDs detection gross imperfection.
When LCDs detecting system shown in Fig. 1 is actually used, be likely to be due to a collection of LCDs detected,
Or the reasons such as power failure, described LCDs detecting system there will be the situation of power-off.Now, when described system electrification,
Described industrial control computer controls frock to described reflecting mirror and sends initialization directive, so that described reflecting mirror controls at the beginning of frock
Beginningization, the minimum angle of the angle to be detected of angle residing for described reflecting mirror 21 and described LCDs 24 to be detected after initialization
Degree or maximum angle are corresponding.Wherein, the concrete minimum angles with angle to be detected of angle residing for described reflecting mirror 21 after initialization
Or maximum angle correspondence can determine according to practical situation.Such as, detection is from the beginning of the minimum angles of angle to be detected every time
, then when initializing, what angle residing for described reflecting mirror 21 was corresponding is exactly the minimum angles of angle to be detected, otherwise, during initialization
What angle residing for described reflecting mirror 21 was corresponding is the maximum angle of angle to be detected.
Utilize LCDs detecting system shown in Fig. 1 LCDs is carried out actually detected during, some
LCDs carries backlight (such as LED display), now when detection without providing light source for detection LCDs.And it is right
For the LCDs not carrying backlight, it is required to be its back light that backlight is provided when detection.To this end, in the present invention
In a kind of detailed description of the invention of embodiment, described display screen frock can include display screen carrying frock and back light, institute
State display screen carrying frock for carrying described LCDs to be detected 24, described back light is positioned at described display to be detected
The underface of screen, for providing backlight for the LCDs 24 described to be detected in described display screen carrying frock.This is concrete
Embodiment can realize the detection to the LCDs not carrying backlight.
During the embodiment of the present invention is embodied as, for realizing the gross imperfection of LCDs 24 to be detected and
Detecting while microdefect, the LCDs detecting system shown in Fig. 1 can also include that the second industrial camera (is not drawn in figure
Go out) and the second optical lens (being not drawn in figure), described second industrial camera is connected with described industrial control computer, described
Second industrial camera and described second optical lens are positioned at the surface of described display screen frock, and described second industrial camera is in institute
That states industrial control computer controls the lower image coordinating the described second optical lens described LCDs 24 to be detected of collection,
And the image of the LCDs 24 described to be detected collected is sent to described industrial control computer, so that described work
Industry controls computer and treats whether LCDs 24 has microcosmic according to the image detection of described LCDs 24 to be detected
Defect.
Specifically, described industrial control computer can send image pick-up signal to described second industrial camera, so that institute
Stating the second industrial camera coordinates described second optical lens to gather the image of described LCDs 24 to be detected, and will be gathered
To the image of LCDs 24 described to be detected be sent to described industrial control computer.Wherein, specifically real in the present invention
During executing, the pixel of described second industrial camera should be sufficiently high, so that described industrial control computer is according to described
The image that two industrial cameras collect is capable of detecting when the microdefects such as the bright spot of described LCDs to be detected, stain.
Preferably, for avoiding the visual field of described first industrial camera 22 and described second industrial camera to interfere, at this
In a kind of detailed description of the invention of inventive embodiments, the primary optical axis of described first industrial camera 22 and described second industrial camera can
It is parallel to each other.
It addition, LCDs detecting system shown in Fig. 1 is when actually used, the multiple inspection to LCDs can be there is
Survey method, citing below illustrates:
As it is shown on figure 3, the flow chart of a kind of LCDs detection method provided for the embodiment of the present invention, the method should
For the LCDs detecting system shown in Fig. 2, it may include following steps:
In step S310, described industrial control computer controls frock to described reflecting mirror and sends control signal, so that
Described reflecting mirror controls frock and controls described reflecting mirror 21 from an angle adjustment to another adjacent angle.
In step s 320, when described reflecting mirror 21 completes an angle adjustment, described industrial control computer is to institute
State the first industrial camera 22 and send image capture instruction, so that described first industrial camera 22 refers to receiving described image acquisition
Described first optical lens 23 is coordinated to gather the image of picture 25 in described reflecting mirror 21, and the described reflection that will be collected when making
In mirror 21, the image as 25 is sent to described industrial control computer.
Specifically, when the described reflecting mirror control frock described reflecting mirror 21 of control completes an angle adjustment, can be to institute
Stating industrial control computer and be sent completely instruction, described first control computer is when completing instruction described in receiving, to described
First industrial camera 22 sends image capture instruction.
In step S330, described industrial control computer sends according to received described first industrial camera 22
Image detects whether described LCDs 24 to be detected has gross imperfection in corresponding angle to be detected.
When described industrial control computer determines that described LCDs to be detected 24 does not has in corresponding angle to be detected
During gross imperfection, in step S340, described industrial control computer again controls frock to described reflecting mirror and sends control letter
Number, to complete the gross imperfection detection in next angle to be detected, when the most not sending out after the detection completing all angles to be detected
During existing gross imperfection, determine that described LCDs to be detected 24 is qualified.
Specifically, as long as described industrial control computer determines that described LCDs to be detected 24 is in corresponding angle measurement to be checked
Not having gross imperfection on degree, described Industry Control camera the most again controls frock to described reflecting mirror and sends control signal, repeats
Perform and step S310 step S330, if when the most not finding gross imperfection after the detection completing all angles to be detected,
Determine that described LCDs to be detected 24 is qualified.
When described industrial control computer, to determine that described LCDs to be detected 24 has in corresponding angle to be detected grand
When seeing defect, in step S350, stop the detection to described LCDs 24 to be detected.
Specifically, determine that described LCDs to be detected 24 is in corresponding angle to be detected when described industrial control computer
On when having gross imperfection, stop controlling frock to described reflecting mirror and send control signal, to stop described liquid crystal to be detected
The detection of display screen 24.
LCDs detection method shown in Fig. 3, is realizing the basis to the detection of described LCDs 24 to be detected
On, when described industrial control computer determines that described LCDs to be detected 24 has gross imperfection in corresponding angle to be detected
Time, the detection with described LCDs 24 to be detected can be stopped, saving the testing process of the LCDs having gross imperfection.
It addition, LCDs detection method shown in Fig. 3 is only based on of LCDs detecting system shown in Fig. 2
Plant detection method, can also have other LCDs detection methods based on the LCDs detecting system shown in Fig. 2.Example
As, in a kind of detailed description of the invention of the embodiment of the present invention, determine described liquid crystal to be detected at described industrial control computer
When display screen 24 has gross imperfection in corresponding angle to be detected, described industrial control computer can first record and detect
Angle during gross imperfection, continues the detection of other angles follow-up, until it is angled to have detected institute, and then determines to be detected
The institute that LCDs 24 exists gross imperfection is angled.
The most such as, in the another kind of detailed description of the invention of the embodiment of the present invention, examine based on the LCDs shown in Fig. 2
Examining system can also complete the detection to LCDs as follows.
Described industrial control computer controls frock to described reflecting mirror and sends control signal, so that described reflecting mirror controls
Frock controls described reflecting mirror 21 and carries out an angle adjustment every Preset Time.
Described industrial control computer sends image capture instruction to described first industrial camera 22, so that described first work
Industry camera 22 coordinates described first optical lens 23 to gather described reflecting mirror 21 often when receiving described image capture instruction
During individual angle described LCDs 24 to be detected in described reflecting mirror 21 as 25 image, and by collected described instead
Penetrate in mirror 21 image as 25 and be sent to described industrial control computer；
The image detection that described industrial control computer sends according to received described first industrial camera 22 is described
Whether LCDs 24 to be detected has gross imperfection in each angle to be detected.
Specifically, in this detailed description of the invention, the length of described Preset Time should be able to meet described first industrial camera
22 can collect described reflecting mirror 21 is positioned at during each angle described LCDs 24 to be detected in described reflecting mirror 21
As the image of 25.The angled image collected can once be occurred to described Industry Control by described first industrial camera 22
Computer, it is also possible to when often collecting the image of an angle, the image of this angle is sent to described industrial control computer.
Wherein, at described first industrial camera 22, the angled image collected once is occurred to described industrial control computer
Time, the angle that recordable each image collected of described first industrial camera 22 is corresponding, so that in described liquid crystal to be detected
When display screen 24 has gross imperfection, described industrial control computer is capable of detecting when to exist the angle of gross imperfection.
Additionally, in previous embodiment, can mutually use for reference between different embodiments, formed by after different embodiment combinations
Scheme, fall within protection scope of the present invention.
It should be noted that in this article, such as the relational terms of " first " and " second " or the like is used merely to one
Individual entity or operation separate with another entity or operating space, and not necessarily require or imply these entities or operate it
Between exist any this reality relation or order.And, term " includes ", " comprising " or its any other variant are intended to
Contain comprising of nonexcludability, so that include that the process of a series of key element, method, article or equipment not only include those
Key element, but also include other key elements being not expressly set out, or also include for this process, method, article or set
Standby intrinsic key element.
Invention described above embodiment, is not intended that limiting the scope of the present invention.Any in the present invention
Spirit and principle within amendment, equivalent and the improvement etc. made, should be included within the scope of the present invention.
Claims (10)
1. a LCDs detecting system, it is characterised in that described system includes display screen frock, reflecting mirror, reflecting mirror
Control frock, industrial control computer, the first industrial camera and the first optical lens；Described industrial control computer respectively with institute
Stating reflecting mirror control frock to be connected with described first industrial camera, described reflecting mirror controls frock and is also connected with described reflecting mirror
Connecing, it is reflective that described first industrial camera, described first optical lens and LCDs to be detected are respectively positioned on described reflecting mirror
Side；
Wherein, described LCDs to be detected is carried in described display screen frock, and imaging in described reflecting mirror；Described
Reflecting mirror control frock controls described reflecting mirror under the control of described industrial control computer and is sequentially adjusted in multiple angles, institute
State the angle one_to_one corresponding all to be detected of multiple angle and described LCDs to be detected；Described first industrial camera is in institute
State and under the control of industrial control computer, coordinate the described first optical lens described reflecting mirror of collection to treat described in when each angle
Detection LCDs image of picture in described reflecting mirror, and described image is sent to described industrial control computer；Institute
State industrial control computer when receiving described image, detect whether described LCDs to be detected has according to described image
Gross imperfection.
System the most according to claim 1, it is characterised in that described reflecting mirror controls frock and includes reflecting mirror fixing tool
With reflecting mirror motion frock, described reflecting mirror fixing tool is used for fixing described reflecting mirror, and described reflecting mirror motion frock is used for
Under the control of described industrial control computer, control described reflecting mirror move with described reflecting mirror fixing tool, so that institute
State reflecting mirror to be sequentially adjusted in the plurality of angle.
System the most according to claim 1, it is characterised in that when described system electrification, described industrial control computer
Frock initialization directive is controlled to described reflecting mirror, so that described reflecting mirror controls frock and initializes, described reflection after initialization
Angle residing for mirror is corresponding with the minimum angles of the angle to be detected of described LCDs to be detected or maximum angle.
System the most according to claim 1, it is characterised in that described industrial control computer controls work to described reflecting mirror
Dress sends control signal, so that described reflecting mirror controls frock and controls described reflecting mirror from an angle adjustment to adjacent another
Individual angle；When described reflecting mirror completes an angle adjustment, described industrial control computer is sent out to described first industrial camera
Send image capture instruction, so that described first industrial camera coordinates described first optics when receiving described image capture instruction
Camera lens gathers the image of picture in described reflecting mirror, and in the described reflecting mirror that will be collected, the image of picture is sent to described industry
Control computer；The image detection that described industrial control computer sends according to received described first industrial camera is described
Whether LCDs to be detected has gross imperfection in corresponding angle to be detected；When described industrial control computer determines described
When LCDs to be detected does not has gross imperfection in corresponding angle to be detected, described industrial control computer is again to described
Reflecting mirror controls frock and sends control signal, to complete the gross imperfection detection in next angle to be detected, when completing to be needed
When the most not finding gross imperfection after the detection of detection angles, determine that described LCDs to be detected is qualified.
System the most according to claim 4, it is characterised in that when described industrial control computer determines described liquid to be detected
When crystal display screen has gross imperfection in corresponding angle to be detected, stop the detection to described LCDs to be detected.
System the most according to claim 1, it is characterised in that described industrial control computer controls work to described reflecting mirror
Dress sends control signal, so that described reflecting mirror controls the frock described reflecting mirror of control and carries out an angle tune every Preset Time
Whole；Described industrial control computer sends image capture instruction to described first industrial camera, so that described first industrial camera
Coordinate described first optical lens to gather described reflecting mirror described in when each angle when receiving described image capture instruction
LCDs to be detected is the image of picture in described reflecting mirror, and in the described reflecting mirror that will be collected, the image of picture sends
To described industrial control computer；The figure that described industrial control computer sends according to received described first industrial camera
As detecting whether described LCDs to be detected has gross imperfection in each angle to be detected.
7. according to the system described in any one of claim 1-6, it is characterised in that described industrial control computer is receiving
When stating image, extract the monochrome information in described image and color uniformity information, according to the monochrome information in described image and
Described in color uniformity infomation detection, whether LCDs to be detected has gross imperfection.
System the most according to claim 7, it is characterised in that described display screen frock includes display screen carrying frock and the back of the body
Radiant, described display screen carrying frock be used for carrying described LCDs to be detected, described back light be positioned at described in treat
The underface of detection display screen, for providing backlight for the LCDs described to be detected in described display screen carrying frock.
System the most according to claim 8, it is characterised in that described system also includes the second industrial camera and the second optics
Camera lens, described second industrial camera is connected with described industrial control computer, described second industrial camera and described second light
Learning camera lens and be positioned at the surface of described display screen frock, described second industrial camera is under the control of described industrial control computer
Described second optical lens is coordinated to gather the image of described LCDs to be detected, and the liquid described to be detected that will be collected
The image of crystal display screen is sent to described industrial control computer, so that described industrial control computer is according to described liquid to be detected
The image of crystal display screen detects whether described LCDs to be detected has microdefect.
System the most according to claim 9, it is characterised in that described first industrial camera and described second industrial camera
Primary optical axis be parallel to each other.
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| CN201610804536.8A CN106249450A (en) | 2016-09-05 | 2016-09-05 | A kind of LCDs detecting system |
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| CN201610804536.8A CN106249450A (en) | 2016-09-05 | 2016-09-05 | A kind of LCDs detecting system |
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Application publication date: 20161221 |