CN108318503A - LCD screen dust detection method and device - Google Patents
LCD screen dust detection method and device Download PDFInfo
- Publication number
- CN108318503A CN108318503A CN201810118473.XA CN201810118473A CN108318503A CN 108318503 A CN108318503 A CN 108318503A CN 201810118473 A CN201810118473 A CN 201810118473A CN 108318503 A CN108318503 A CN 108318503A
- Authority
- CN
- China
- Prior art keywords
- image
- lcd screen
- capture device
- foreign matter
- image capture
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- 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
- G01N21/95—Investigating the presence of flaws or contamination characterised by the material or shape of the object to be examined
-
- 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
- G01N21/95—Investigating the presence of flaws or contamination characterised by the material or shape of the object to be examined
- G01N2021/9513—Liquid crystal panels
Abstract
A kind of LCD screen dust detection method and device, image analysis equipment, obtain the image information of LCD screen to be detected, the image information of LCD screen to be detected includes the first image and the second image, first image capture device and the second image capture device include the angle of α degree, and the first image and the second image respectively include foreign matter point；Image analysis equipment determines the offset between the foreign matter point of the first image and the foreign matter point of the second image according to the coordinate for the foreign matter point for including on the first image and the second image；When the offset between the foreign matter point of the first image and the foreign matter point of the second image and the difference between theoretical offset are less than first threshold, it is LCD screen internal dust point that image analysis equipment, which determines foreign matter point not,.The application is analyzed by the way that two image capture devices are acquired with the image of tested LCD screen different angle respectively, determines on the LCD screen whether the foreign matter point for including is foreign matter on LCD screen liquid crystal layer.
Description
Technical field
This application involves LCD screen production technical field more particularly to a kind of LCD screen dust detection method and dresses
It sets.
Background technology
LCD screen as display equipment application daily life every aspect.LCD screen needs after the completion of production
It is detected, to ensure the quality of product.LCD screen is clapped in liquid crystal display detection process, including by camera
According to, analysis, determine inside LCD screen with the presence or absence of dust, foreign matter etc..
But the image that the upper and lower surface dirt of liquid crystal display is formed after taking pictures with liquid crystal display internal dust is closely similar, is
Black picture bright spot or white picture dim spot.When image analysis equipment to liquid crystal display take pictures the picture of image analyze when, Bu Nengtong
It crosses imaging picture and distinguishes and divide dust and the upper and lower surface dirt of LCD screen inside LCD screen.To cannot distinguish between non-defective unit with
Substandard products, or upper and lower surface dirt is judged as liquid crystal display internal dust when LCD screen is detected.
Invention content
In order to solve the above technical problems, a kind of LCD screen dust detection method of the application specific embodiment offer and dress
It sets, by being tested the image of LCD screen in the different angle acquisition of tested LCD screen and carrying out comparison determination to multiple images
The foreign matter point for including on image whether be LCD screen liquid crystal layer foreign matter.
What the embodiment of the present application was realized in：
In a first aspect, the application specific embodiment provides a kind of LCD screen dust detection system, described device includes：
Image capture device, including the first image capture device and the second image capture device, pass through the first Image Acquisition
Equipment is set for acquiring the first image, second image capture device for acquiring the second image, described first image acquisition
The standby angle with X degree between the second image capture device, X are more than 0 and are less than 180；
Image analysis equipment, the first image and the second image for obtaining image capture device acquisition, first figure
Picture and the second image respectively include foreign matter point, the foreign matter point and second that described image analytical equipment passes through analysis described first image
The coordinate shift amount of the foreign matter point of image determines whether the foreign matter point is LCD screen internal dust point.
In a possible design, described first image collecting device and/or the second image capture device are linear array phase
Machine.
In a possible design, symmetrically setting exists for described first image collecting device and the second image capture device
Above tested LCD screen.
In a possible design, on a mobile station, described first image acquisition is set for the tested LCD screen setting
The arragement direction of standby and described second image capture device is identical as the movement technique of LCD screen or the first image capture device
It is vertical with the direction of motion of LCD screen with the arragement direction of second image capture device.
In a possible design, described first image collecting device is area array cameras, and second Image Acquisition is set
Standby is the area array cameras for including shifting lens shaft.
In a possible design, described first image collecting device is at a distance from LCD screen and the second Image Acquisition
Equipment is identical at a distance from LCD screen.
In a possible design, the method further includes：
Determine the coordinate of LCD screen ash dirt pits, the coordinate of grey dirt pits is the ash dirt pits in liquid crystal display in the LCD screen
The coordinate of pixel on curtain；
Send the coordinate of grey dirt pits in the LCD screen.
In a possible design, the method further includes：
Determine the coordinate of LCD screen ash dirt pits, the coordinate of grey dirt pits is the ash dirt pits in liquid crystal display in the LCD screen
The coordinate of pixel on curtain；
Send the coordinate of grey dirt pits in the LCD screen.
Second aspect, the application specific embodiment provide a kind of LCD screen dust detection method, the method includes：
Image analysis equipment obtains the image information of LCD screen to be detected, the image letter of the LCD screen to be detected
Breath includes the first image and the second image, and described first image is acquired by the first image capture device, and second image is logical
The acquisition of the second image capture device is crossed, described first image collecting device and the second image capture device include the angle of α degree, institute
It states the first image and the second image respectively includes foreign matter point；
Image analysis equipment determines described first according to the coordinate for the foreign matter point for including on the first image and the second image
Offset between the foreign matter point of image and the foreign matter point of the second image；
When the offset between the foreign matter point and the foreign matter point of the second image of described first image and between theoretical offset
Difference be less than first threshold when, it is LCD screen internal dust point that described image analytical equipment, which determines the foreign matter point not,.
In a possible design, the theory offset is：
X=l*tan (α)
Wherein, X is theoretical offset, and l is distance of the liquid crystal layer apart from screen upper and lower surface, and α is that the first Image Acquisition is set
The standby angle between the second image capture device.
In a possible design, described image analytical equipment further includes sending the seat of LCD screen liquid crystal layer ash dirt pits
Mark.
The application specific embodiment provides a kind of LCD screen backhaul detection method and device, including image detecting apparatus and
Image analysis equipment.The image detecting apparatus includes two image capture devices, which acquires quilt respectively
Survey the image of LCD screen different angle.The liquid crystal image that two image capture devices of the image analysis equipment pair acquire respectively into
Row analysis, and to multiple images compare the foreign matter point for including on determining image whether be LCD screen liquid crystal layer foreign matter.
Description of the drawings
Attached drawing described herein is used for providing further understanding of the present application, constitutes part of this application, this Shen
Illustrative embodiments and their description please do not constitute the improper restriction to the application for explaining the application.In the accompanying drawings：
Fig. 1 is a kind of LCD screen dust detection system that the application specific embodiment provides；
Fig. 2 is the schematic diagram that a kind of image capture device acquisition that the application specific embodiment provides is tested LCD screen；
Fig. 3 is the schematic diagram of image capture device and stage position in the application specific embodiment；
Fig. 4 is a kind of image analysis method that the application specific embodiment provides；
Fig. 5 is a kind of diagrammatic cross-section for tested LCD screen that the application specific embodiment provides；
Fig. 6 is the image for the tested LCD screen that two image capture devices acquire under different angle.
Specific implementation mode
To keep the purpose, technical scheme and advantage of the application clearer, below in conjunction with the application specific embodiment and
Technical scheme is clearly and completely described in corresponding attached drawing.Obviously, described embodiment is only the application one
Section Example, instead of all the embodiments.Based on the embodiment in the application, those of ordinary skill in the art are not doing
Go out the every other embodiment obtained under the premise of creative work, shall fall in the protection scope of this application.
Below in conjunction with attached drawing, the technical solution that each embodiment of the application provides is described in detail.
Fig. 1 is a kind of LCD screen dust detection system that the application specific embodiment provides.As shown in Figure 1, including figure
As collecting device and image analysis system.Image capture device is used to acquire the image of tested LCD screen, image analysis equipment
For analyzing the image that image capture device acquires, determine foreign matter point that image includes whether LCD screen liquid
Crystal layer.When the foreign matter point is the foreign matter point that liquid crystal layer dust is formed in LCD screen, image analysis equipment exports the foreign matter point
Coordinate.
Fig. 2 is the schematic diagram that a kind of image capture device acquisition that the application specific embodiment provides is tested LCD screen.
As shown in Fig. 2, including the first image capture device and the second image capture device.Described first image collecting device and the second figure
As between collecting device include certain angle, and the first image capture device to be tested liquid crystal display distance and the second image
The distance of collecting device to tested LCD screen is identical.Due to described first image collecting device and the second image capture device it
Between include angle, therefore, the first image capture device and the second image capture device can obtain tested LCD screen difference angle
The image information of degree.
Fig. 3 is the schematic diagram of image capture device and stage position in the application specific embodiment.As shown in figure 3,
In the specific embodiment of the application, angle between described first image collecting device and the second image capture device either
Shown in Fig. 3 A, the first image capture device is arranged in the surface again without platform, and the first image capture device and tested liquid crystal
Screen vertical.Second image capture device and the first image capture device keep a row consistent with stage movement direction to set
It sets.Wherein, it is in the angle of α between the first image capture device and the second image capture device.Can also be it is as shown in Figure 3B,
Two cameras are symmetrical arranged or two camera any angle settings.
In the specific embodiment of the application, described first image collecting device and/or the second image capture device can be with
It is line-scan digital camera, to obtain the image for being tested LCD screen one or more columns per page pixel.By selecting two-wire array camera, system is improved
System resolution ratio, angle of inclination is big, to which offset pixels difference becomes apparent from, is calculated convenient for algorithm.Alternatively, first image capture device
And/or second image capture device can also be the larger area array cameras of resolution ratio, or move lens shaft and area array cameras combination.
Wherein, the first image capture device and the second image capture device are arranged in the top of tested LCD screen.It is tested
LCD screen is arranged on objective table, in embodiments herein, what objective table can move.
Optionally, it on shown objective table can also include backlight, can also include just on shown tested LCD screen
Area source.Light source is respectively set by the front and back in LCD screen, makes the LCD screen of image capture device acquisition
Image is more clear.
Optionally, further include jig on shown objective table, shown tested LCD screen is arranged on jig.Wherein, this is controlled
Have more demanding, it is necessary to not block two viewing field of camera.The jig is for fixing the tested liquid crystal display.To ensure
State the fixation for the process Zhang Hong that tested liquid crystal display moves on objective table.
Fig. 4 is a kind of image analysis method that the application specific embodiment provides.As shown in figure 4, this method includes：
The image information of S401, the image information for obtaining LCD screen to be detected, LCD screen to be detected includes the first figure
Picture and the second image, described first image are acquired by the first image capture device, and second image is adopted by the second image
Collect equipment acquisition, described first image collecting device and the second image capture device include the angle of α degree, described first image and
Second image respectively includes foreign matter point.
Wherein, the first image capture device described in the application specific embodiment and the second image capture device can be as
Shown in Fig. 1 to Fig. 3.After first image capture device and the second image capture device obtain the image information of tested LCD screen,
Also the image information of acquisition is sent to image analysis equipment.When tested LCD screen includes dust, the first Image Acquisition is set
The first image information and the second image information that standby and the second image capture device obtains respectively will also respectively include foreign matter electricity.
S402, according to the coordinate for the foreign matter point for including on the first image and the second image, determine the different of described first image
Offset between object point and the foreign matter point of the second image.
Described first image and the second image are the image information for including tested LCD screen one or more columns per page pixel.It is described
Image analysis equipment determines the foreign matter point on tested LCD screen according to the foreign matter point of the image information and the image information
Coordinate.When determining the coordinate of foreign matter point on the first image and the second image respectively, the foreign matter point of the first image and the is determined
Offset between the foreign matter point of two images.
S403, when between the foreign matter point and the foreign matter point of the second image of described first image offset and theoretical offset
Between difference be less than first threshold when, it is LCD screen internal dust that described image analytical equipment, which determines the foreign matter point not,
Point.
In the specific embodiment of the application, when position between the first image capture device and the second image capture device
Different, angle difference, will lead to the variation of the first threshold of theoretical offset.
Specifically：
X=l*tan (α)
Wherein, X is theoretical offset, and l is distance of the liquid crystal layer apart from screen upper and lower surface, and α is that the first Image Acquisition is set
The standby angle between the second image capture device.
In the specific embodiment of the application, described image analytical equipment determines the foreign matter point and the second image of the first image
Foreign matter point after, by theoretical offset and real offset come determine the foreign matter point be LCD screen inside liquid crystal layer dust
Or the dust of LCD screen upper and lower surface.When real offset is more than the theory offset, image analysis equipment determines that this is different
Object point is LCD screen upper and lower surface dust.When real offset is less than the theory offset, image analysis equipment determines should
Foreign matter point is the dust of liquid crystal layer in LCD screen.
Described image analytical equipment is when it is the dust of liquid crystal layer in LCD screen to determine the obligation point, described image analysis
Equipment also needs to determine the actual coordinate of the grey dirt pits of liquid crystal layer in the LCD screen.The coordinate of grey dirt pits in the LCD screen
It is the coordinate of ash dirt pits pixel on LCD screen.Described image analytical equipment determines dust in the LCD screen liquid crystal layer
When the actual coordinate of point, determined by first image and/or the second image.
When the first image or the second image are the image that the image capture device vertical with objective table acquires, by this with
The image of the vertical image capture device acquisition of objective table determines the actual coordinate of grey dirt pits in LCD screen liquid crystal layer.Specifically
, determine the coordinate of the opposite LCD screen pixel of foreign matter point in the image of vertical with objective table image capture device acquisition,
The coordinate of the pixel is the actual coordinate of grey dirt pits in LCD screen liquid crystal layer.
When the image capture device for acquiring the first image and the second image is not vertical with objective table, described image point
Desorption device determines described first image and second analyze simultaneously, determines the actual coordinate of grey dirt pits in LCD screen liquid crystal layer.
Image analysis equipment exports after the actual coordinate for determining in LCD screen liquid crystal layer grey dirt pits in the LCD screen
The coordinate of grey dirt pits.
Since the first image is vertically oriented the image of acquisition, when the liquid on upper surface including dust, LCD screen
It includes dust in same row or same row that crystal layer, which includes the lower surface of dust and LCD screen, the acquisition of the first image capture device
Image on, it is impossible to area's dust be LCD screen upper and lower surface dust or LCD screen in liquid crystal layer dust.
In the following, image analysis method in the embodiment of the present application is specifically described by specific implementation.Wherein,
Fig. 5 is a kind of diagrammatic cross-section for tested LCD screen that the application specific embodiment provides.The LCD screen includes upper surface
501, lower surface 503 and liquid crystal layer 502.Include dust 504, the liquid crystal of LCD screen on the upper surface 501 of the LCD screen
Layer 502 includes dust 505, and the lower surface 503 of LCD screen includes dust 506.The thickness of LCD screen is 0.4mm, liquid crystal layer
Thickness to upper surface is 0.20mm, and the thickness of liquid crystal layer to lower surface is 0.20mm.
Image capture device carries out Image Acquisition using liquid crystal layer as focal plane to the LCD screen.When the first image is adopted
When collection equipment is tested the image of LCD screen with the direction acquisition overlooked, the image that dust 504 is formed on liquid crystal layer 502 is
5041, the image or 505 that dust 502 is formed on liquid crystal layer, the image that dust 506 is formed on liquid crystal layer 502 is 5061.
When the second image capture device is tested the image of LCD screen with opposite first image capture device α angle acquisitions, dust 504
The image formed on liquid crystal layer 502 is 5042, and the image or 505 that dust 502 is formed on liquid crystal layer, dust 506 is in liquid
The image formed on crystal layer 502 is 5063.Wherein, specific as shown in Figure 6 A and 6B.
Fig. 6 is the image for the tested LCD screen that two image capture devices acquire under different angle.As shown in Figure 6A,
The image be the first image capture device setting acquire in the vertical direction by altimetric image.Including the first foreign matter point 5041,
Two foreign matter points 505 and third foreign matter point 5061, wherein the first foreign matter point 5041, the second foreign matter point 505 and third foreign matter point 5061
It is being in that a row arrange on the image.
As shown in Figure 6B, which is provided in the first image capture device for the second image capture device and is set in α angles
Set acquisition by altimetric image.Including the first foreign matter point 5042, the second foreign matter point 505 and third foreign matter point 5062, wherein first is different
Object point 5042 is that foreign matter point, the second foreign matter point 505 that LCD screen upper surface dust is formed on the image are inside LCD screen
The foreign matter point that liquid crystal layer dust is formed on the image, third foreign matter point 5062 are that LCD screen lower surface dust is formed on the image
Foreign matter point.
Image analysis equipment is adopted by the first image and the second image capture device for acquiring the first image capture device
Second image of collection is synthesized in a figure, determines the offset between corresponding foreign matter point in the first image and the second image
Amount.If imaging point can match or offset pixels are seldom, illustrate that this point is defect point；If imaging point offset pixels are very
It is more, then illustrate that this point is dust, need to filter out, avoid as defect detection.
It also proposed a kind of computer program product in the specific embodiment of the application, which can be used for
Access network equipment is run.When the computer program product is run on access network equipment so that access network equipment executes such as Fig. 4
Shown in method.
It should be noted that it is the alternative embodiment that the application is introduced, art technology that the application, which provides embodiment,
Personnel on this basis, can be designed that more embodiments, therefore do not repeat here completely.
Those of ordinary skill in the art may realize that lists described in conjunction with the examples disclosed in the embodiments of the present disclosure
Member and algorithm steps can be realized with the combination of electronic hardware or computer software and electronic hardware.These functions are actually
It is implemented in hardware or software, depends on the specific application and design constraint of technical solution.Professional technician
Each specific application can be used different methods to achieve the described function, but this realization is it is not considered that exceed
Scope of the present application.
It is apparent to those skilled in the art that for convenience and simplicity of description, the system of foregoing description,
The specific work process of device and unit, can refer to corresponding processes in the foregoing method embodiment, and details are not described herein.
In several embodiments provided herein, it should be understood that disclosed systems, devices and methods, it can be with
It realizes by another way.For example, the apparatus embodiments described above are merely exemplary, for example, the division of unit,
Only a kind of division of logic function, formula that in actual implementation, there may be another division manner, such as multiple units or 40 components can
To combine or be desirably integrated into another system, or some features can be ignored or not executed.Another point, it is shown or beg for
The mutual coupling, direct-coupling or communication connection of opinion can be the INDIRECT COUPLING by some interfaces, device or unit
Or communication connection, can be electrical, machinery or other forms.The unit illustrated as separating component can be or can also
It is not physically separated, the component shown as unit may or may not be physical unit, you can be located at one
A place, or may be distributed over multiple network units.Part therein or complete can be selected according to the actual needs
Portion unit achieves the purpose of the solution of this embodiment.
In addition, each functional unit in each embodiment of the application can be integrated in a processing unit, it can also
It is that each unit physically exists alone, it can also be during two or more units be integrated in one unit.If function is with soft
The form of part functional unit realizes and when sold or used as an independent product, can be stored in one and computer-readable deposit
In storage media.Based on this understanding, the technical solution of the application substantially the part that contributes to existing technology in other words
Or the part of the technical solution can be expressed in the form of software products, which is stored in one and deposits
In storage media, including some instructions are used so that a computer equipment (can be personal computer, server or network
Equipment etc.) or processor (processor) execute each embodiment method of the application all or part of step.And it above-mentioned deposits
Storage media includes：USB flash disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM,
Random Access Memory), the various media that can store program code such as magnetic disc or CD.
More than, the only specific implementation mode of the application, but the protection domain of the application is not limited thereto, and it is any to be familiar with
Those skilled in the art can easily think of the change or the replacement in the technical scope that the application discloses, and should all cover
Within the protection domain of the application.Therefore, the protection domain of the application should be subject to the protection scope in claims.
Claims (10)
1. a kind of LCD screen dust detection method, which is characterized in that the method includes：
Image analysis equipment obtains the image information of LCD screen to be detected, the image information packet of the LCD screen to be detected
The first image and the second image are included, described first image is acquired by the first image capture device, and second image passes through
Two image capture devices acquire, and described first image collecting device and the second image capture device include the angle of α degree, and described the
One image and the second image respectively include foreign matter point；
Image analysis equipment determines described first image according to the coordinate for the foreign matter point for including on the first image and the second image
Foreign matter point and the foreign matter point of the second image between offset；
When the offset between the foreign matter point and the foreign matter point of the second image of described first image and the difference between theoretical offset
When value is less than first threshold, it is LCD screen internal dust point that described image analytical equipment, which determines the foreign matter point not,.
2. according to the method described in claim 1, it is characterized in that, the theory offset is：
X=l*tan (α)
Wherein, X is theoretical offset, and l is distance of the liquid crystal layer apart from screen upper and lower surface, α be the first image capture device with
Angle between second image capture device.
3. according to the method described in claim 1, it is characterized in that, the method further includes：
Determine the coordinate of LCD screen ash dirt pits, the coordinate of grey dirt pits is the ash dirt pits on LCD screen in the LCD screen
The coordinate of pixel；
Send the coordinate of grey dirt pits in the LCD screen.
4. a kind of LCD screen dust detection system, which is characterized in that described device includes：
Image capture device, including the first image capture device and the second image capture device, pass through the first image capture device
For acquiring the first image, second image capture device for acquiring the second image, described first image collecting device and
Angle with X degree between second image capture device, X are more than 0 and are less than 180；
Image analysis equipment, for obtain image capture device acquisition the first image and the second image, described first image and
Second image respectively includes foreign matter point, the foreign matter point and the second image that described image analytical equipment passes through analysis described first image
Foreign matter point coordinate shift amount determine the foreign matter point whether be LCD screen liquid crystal layer grey dirt pits.
5. system according to claim 4, which is characterized in that described first image collecting device and/or the second image are adopted
Integrate equipment as line-scan digital camera.
6. system according to claim 4, which is characterized in that described first image collecting device and the second Image Acquisition are set
Standby symmetrical setting is above tested LCD screen.
7. system according to claim 4, which is characterized in that the tested LCD screen setting is on a mobile station, described
The arragement direction of first image capture device and second image capture device is identical as the movement technique of LCD screen or
The arragement direction of one image capture device and second image capture device is vertical with the direction of motion of LCD screen.
8. system according to claim 4, which is characterized in that described first image collecting device is area array cameras, described
Second image capture device is the area array cameras for including shifting lens shaft.
9. system according to claim 4, which is characterized in that described first image collecting device is at a distance from LCD screen
It is identical at a distance from LCD screen with the second image capture device.
10. system according to claim 4, which is characterized in that described image analytical equipment further includes sending LCD screen
The coordinate of liquid crystal layer ash dirt pits.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810118473.XA CN108318503A (en) | 2018-02-06 | 2018-02-06 | LCD screen dust detection method and device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810118473.XA CN108318503A (en) | 2018-02-06 | 2018-02-06 | LCD screen dust detection method and device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108318503A true CN108318503A (en) | 2018-07-24 |
Family
ID=62903524
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810118473.XA Pending CN108318503A (en) | 2018-02-06 | 2018-02-06 | LCD screen dust detection method and device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108318503A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109100363A (en) * | 2018-08-31 | 2018-12-28 | 凌云光技术集团有限责任公司 | A kind of differentiating method and system being bonded foreign matter defect and dust |
| CN109829904A (en) * | 2019-01-29 | 2019-05-31 | 京东方科技集团股份有限公司 | Detect the method, apparatus of dust, electronic equipment, readable storage medium storing program for executing on screen |
| CN110007493A (en) * | 2019-03-28 | 2019-07-12 | 凌云光技术集团有限责任公司 | Broken bright spot detection method in liquid crystal display |
| CN110596139A (en) * | 2019-08-26 | 2019-12-20 | 武汉精立电子技术有限公司 | Screen defect detection method and system |
| WO2020187173A1 (en) * | 2019-03-15 | 2020-09-24 | Oppo广东移动通信有限公司 | Foreign object detection method, foreign object detection device, and electronic apparatus |
| CN112798613A (en) * | 2021-03-31 | 2021-05-14 | 惠州高视科技有限公司 | LCD foreign matter defect color imaging detection method, electronic equipment and storage medium |
| CN114040181A (en) * | 2021-10-29 | 2022-02-11 | 中国铁塔股份有限公司盐城市分公司 | Holographic display system and holographic display method |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6144446A (en) * | 1996-11-29 | 2000-11-07 | Matsushita Electric Industrial Co., Ltd. | Method and apparatus for inspecting foreign substance |
| CN101655463A (en) * | 2008-08-20 | 2010-02-24 | Asml控股股份有限公司 | Particle detection on object surface |
| CN102411005A (en) * | 2010-09-17 | 2012-04-11 | 株式会社东芝 | Cell substrate inspection system and method |
| CN102954970A (en) * | 2011-08-18 | 2013-03-06 | 三星康宁精密素材株式会社 | Apparatus and method for detecting the surface defect of the glass substrate |
| CN104359917A (en) * | 2014-11-18 | 2015-02-18 | 北京凌云光技术有限责任公司 | Method and device for detecting internal dust of liquid crystal screen |
| CN107607557A (en) * | 2017-08-28 | 2018-01-19 | 深圳市兴华炜科技有限公司 | The method of testing and Related product of transparent substance |
-
2018
- 2018-02-06 CN CN201810118473.XA patent/CN108318503A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6144446A (en) * | 1996-11-29 | 2000-11-07 | Matsushita Electric Industrial Co., Ltd. | Method and apparatus for inspecting foreign substance |
| CN101655463A (en) * | 2008-08-20 | 2010-02-24 | Asml控股股份有限公司 | Particle detection on object surface |
| CN102411005A (en) * | 2010-09-17 | 2012-04-11 | 株式会社东芝 | Cell substrate inspection system and method |
| CN102954970A (en) * | 2011-08-18 | 2013-03-06 | 三星康宁精密素材株式会社 | Apparatus and method for detecting the surface defect of the glass substrate |
| CN104359917A (en) * | 2014-11-18 | 2015-02-18 | 北京凌云光技术有限责任公司 | Method and device for detecting internal dust of liquid crystal screen |
| CN107607557A (en) * | 2017-08-28 | 2018-01-19 | 深圳市兴华炜科技有限公司 | The method of testing and Related product of transparent substance |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109100363A (en) * | 2018-08-31 | 2018-12-28 | 凌云光技术集团有限责任公司 | A kind of differentiating method and system being bonded foreign matter defect and dust |
| CN109100363B (en) * | 2018-08-31 | 2021-10-29 | 凌云光技术股份有限公司 | Method and system for distinguishing defects of attached foreign matters from dust |
| CN109829904A (en) * | 2019-01-29 | 2019-05-31 | 京东方科技集团股份有限公司 | Detect the method, apparatus of dust, electronic equipment, readable storage medium storing program for executing on screen |
| US11156564B2 (en) | 2019-01-29 | 2021-10-26 | Beijing Boe Optoelectronics Technology Co., Ltd. | Dirt detection on screen |
| CN109829904B (en) * | 2019-01-29 | 2022-01-14 | 京东方科技集团股份有限公司 | Method and device for detecting dust on screen, electronic equipment and readable storage medium |
| WO2020187173A1 (en) * | 2019-03-15 | 2020-09-24 | Oppo广东移动通信有限公司 | Foreign object detection method, foreign object detection device, and electronic apparatus |
| EP3923037A4 (en) * | 2019-03-15 | 2022-03-23 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Foreign object detection method, foreign object detection device, and electronic apparatus |
| US11789491B2 (en) | 2019-03-15 | 2023-10-17 | Guangdong Oppo Mobile Telecommunications Corp., Ltd. | Method for detecting foreign object and related electronic devices |
| CN110007493A (en) * | 2019-03-28 | 2019-07-12 | 凌云光技术集团有限责任公司 | Broken bright spot detection method in liquid crystal display |
| CN110596139A (en) * | 2019-08-26 | 2019-12-20 | 武汉精立电子技术有限公司 | Screen defect detection method and system |
| CN112798613A (en) * | 2021-03-31 | 2021-05-14 | 惠州高视科技有限公司 | LCD foreign matter defect color imaging detection method, electronic equipment and storage medium |
| CN114040181A (en) * | 2021-10-29 | 2022-02-11 | 中国铁塔股份有限公司盐城市分公司 | Holographic display system and holographic display method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108318503A (en) | LCD screen dust detection method and device | |
| US11665427B2 (en) | Still image stabilization/optical image stabilization synchronization in multi-camera image capture | |
| CN104749184B (en) | Automatic optical detection method and system | |
| CN109100363B (en) | Method and system for distinguishing defects of attached foreign matters from dust | |
| CN100565630C (en) | Display multiangle measurement system and method | |
| CN103471512B (en) | A kind of glass plate width detecting system based on machine vision | |
| JP4970901B2 (en) | Computer program for operating visual inspection device and review machine for visual inspection device | |
| CN105812790B (en) | Method for evaluating verticality between photosensitive surface and optical axis of image sensor and optical test card | |
| GB2529943A (en) | Tracking processing device and tracking processing system provided with same, and tracking processing method | |
| WO2007074770A1 (en) | Defect inspection device for inspecting defect by image analysis | |
| TW201310023A (en) | Apparatus and method for detecting the surface defect of the glass substrate | |
| CN111970506A (en) | Lens dirt detection method, device and equipment | |
| JP2011010266A (en) | Method and system of evaluating stereo image displaying panel | |
| CN106248684B (en) | Optical device and method for detecting internal defects of transparent substrate | |
| US8315457B2 (en) | System and method for performing multi-image training for pattern recognition and registration | |
| CN104463827B (en) | A kind of automatic testing method and corresponding electronic equipment of image capture module | |
| CN104749801B (en) | High Precision Automatic optical detecting method and system | |
| CN109905641A (en) | A kind of target monitoring method, apparatus, equipment and system | |
| CN104641395B (en) | Image processing equipment and image processing method | |
| KR20100025001A (en) | Imaging device and method | |
| JP2009198290A (en) | Flaw detection method and detector | |
| CN113176275A (en) | Method, device and system for retesting display panel | |
| JP5509465B2 (en) | Glass bottle inspection equipment | |
| JP5257063B2 (en) | Defect detection method and defect detection apparatus | |
| CN106872483A (en) | Optical detection apparatus are solved because of the method for the aeration detection in transparent material |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 100094 Beijing city Haidian District Cui Hunan loop 13 Hospital No. 7 Building 7 room 701 Applicant after: Lingyunguang Technology Co.,Ltd. Address before: 100094 Beijing city Haidian District Cui Hunan loop 13 Hospital No. 7 Building 7 room 701 Applicant before: Beijing lingyunguang Technology Group Co.,Ltd. Address after: 100094 Beijing city Haidian District Cui Hunan loop 13 Hospital No. 7 Building 7 room 701 Applicant after: Beijing lingyunguang Technology Group Co.,Ltd. Address before: 100094 Beijing city Haidian District Cui Hunan loop 13 Hospital No. 7 Building 7 room 701 Applicant before: LUSTER LIGHTTECH GROUP Co.,Ltd. |
|
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20180724 |