CN110220911A - A kind of mobile phone screen detection method and device - Google Patents
A kind of mobile phone screen detection method and device Download PDFInfo
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- CN110220911A CN110220911A CN201910432433.7A CN201910432433A CN110220911A CN 110220911 A CN110220911 A CN 110220911A CN 201910432433 A CN201910432433 A CN 201910432433A CN 110220911 A CN110220911 A CN 110220911A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/8851—Scan or image signal processing specially adapted therefor, e.g. for scan signal adjustment, for detecting different kinds of defects, for compensating for structures, markings, edges
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/84—Systems specially adapted for particular applications
- G01N21/88—Investigating the presence of flaws or contamination
- G01N21/8851—Scan or image signal processing specially adapted therefor, e.g. for scan signal adjustment, for detecting different kinds of defects, for compensating for structures, markings, edges
- G01N2021/8887—Scan or image signal processing specially adapted therefor, e.g. for scan signal adjustment, for detecting different kinds of defects, for compensating for structures, markings, edges based on image processing techniques
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Abstract
The invention discloses a kind of mobile phone screen detection method and devices, which comprises extracts screen to be detected；Photograph or optical scanner are carried out to the screen to be detected, obtain screen picture；Image procossing is carried out to the screen picture of the screen to be detected, extracts the characteristics of image of the screen picture；According to described image feature, determine whether the screen to be detected is non-defective unit.Method and apparatus provided by the invention can improve the detection efficiency and recall rate of circular hole screen.
Description
Technical field
The present invention relates to mobile phone and flat display fields, more particularly, to a kind of mobile phone screen detection method and dress
It sets.
Background technique
Current mobile phone screen largely uses TFT-LCD panel, i.e., shows image as Light modulating device using liquid crystal
Means.In the manufacturing process of liquid crystal display panel, due to the product control problem of volume production, the display panel of production is it is possible that leakage
The defects of light, uneven display, for this purpose, panel manufacturer and cell phone manufacturer can all detect the quality of screen, it will be bad
Product are eliminated.In recent years, in order to improve the screen accounting of mobile phone, cell phone manufacturer constantly proposes more novel screen design, as water droplet screen,
Comprehensive screen, circular hole screen etc..Wherein circular hole screen is punched in the viewing area of liquid crystal display panel, and the one of camera is arranged in circular hole
Kind technological means, can further increase the screen accounting of mobile phone.But complicated technique also results in novel bad generation,
Such as positive hole light leakage, black glue invasion, side leakage light bad item, this field is not yet configured circular hole screen special bad at present
Detection scheme, substantially or in such a way that original liquid crystal display panel detection scheme adds manual inspection, detection efficiency is low,
Recall rate is not high.
It is therefore proposed that a kind of new mobile phone screen detection method and device, improve detection efficiency and the detection of circular hole screen
Rate becomes those skilled in the art's urgent problem to be solved.
Summary of the invention
It is an object of the invention to overcome drawbacks described above in the prior art, provide a kind of mobile phone screen detection method and
Device improves the detection efficiency and recall rate of circular hole screen.
To achieve the above object, technical solution provided by the invention is as follows, provides a kind of mobile phone screen detection method, packet
It includes: extracting screen to be detected；Photograph or optical scanner are carried out to the screen to be detected, obtain screen picture；To described to be checked
The screen picture for surveying screen carries out image procossing, extracts the characteristics of image of the screen picture；According to described image feature, determine
Whether the screen to be detected is non-defective unit.
Specifically, the screen to be detected is equipped with non-aobvious specifically, the screen to be detected is liquid crystal display
The circular hole for showing function positions the position in hole on the screen to be detected after obtaining the screen picture, is extracting described image
In the step of feature, the characteristics of image of the hole peripheral region is extracted.
Furthermore, the step of positioning the position of circular hole on the screen to be detected includes: in the screen to be detected
It is upper to find the region for meeting circular hole feature, it is determined whether to be circular hole.
Furthermore, image procossing is carried out to the screen picture of the screen to be detected, extracts the hole peripheral region
Characteristics of image the step of include:
Behind the position of location hole, binaryzation and mean value computation are carried out to the hole neighboring area, obtained around the hole
The characteristics of image in region；
According to described image feature, determine that the step of whether screen to be detected is non-defective unit includes: to obtain the hole week
After the characteristics of image for enclosing region, compares with the characteristics of image in normal circular region, obtains the defect characteristic in the hole,
Judge whether the screen to be detected is non-defective unit with this.
Furthermore, image procossing is carried out to the screen picture of the screen to be detected, extracts the hole peripheral region
Characteristics of image the step of include: the area-of-interest extracted in the screen picture, by algorithm enhancement method, by the sense
The characteristics of image in interest region and entopic characteristics of image compare, and detect whether the screen to be detected is non-defective unit.
Furthermore, the area-of-interest in the screen picture is extracted, it is by algorithm enhancement method, the sense is emerging
The step of characteristics of image in interesting region is compared with entopic characteristics of image includes: interested in the positioning screen picture
Region carries out region growing processing to the long side edge region of the area-of-interest, finds pixel and change apparent Q-character
It sets, according to preset change threshold, judges the feature locations with the presence or absence of bad.
Furthermore, photograph or optical scanner are carried out to the screen to be detected, the step of obtaining screen picture includes:
To the screen to be detected carry out photograph or optical scanner during, it is described photograph or optical scanner direction with it is described
An inclination angle for being greater than 0 degree is kept between the in-plane of screen to be detected.
Furthermore, photograph or optical scanner are carried out to the screen to be detected, the step of obtaining screen picture includes:
It is synchronized using multiple cameras and photograph or optical scanner is carried out to the screen to be detected；
Image procossing is carried out to the screen picture of the screen to be detected, extracts the characteristics of image of the hole peripheral region
Step includes: to carry out independent image procossing to every image of the multiple camera shooting, and then image is overlapped processing and is
One final detection figure.
The present invention also provides a kind of mobile phone screen detection devices, comprising:
Filming apparatus obtains screen picture for screen to be detected to be taken pictures or scanned；
Storage unit is connected with the filming apparatus, for storing the screen picture；
Processing unit is connected with the storage unit, for carrying out image procossing to the screen picture, described in extraction
The characteristics of image of screen picture；
Detection unit is connected with the detection unit, for determining the screen to be detected according to described image feature
It whether is non-defective unit.
Furthermore, the screen to be detected is equipped with the hole of non-display function, the filming apparatus obtain it is described
After screen picture, the processing unit can position the position in hole on the screen to be detected, and extract the hole peripheral region
Characteristics of image；
One is kept between the in-plane in the direction and the screen to be detected of the photograph or optical scanner
Inclination angle more than or equal to 0 degree.
Compared with prior art, the beneficial effects of the present invention are:
Mobile phone screen detection method provided by the invention is included in extract screen to be detected after to the screen to be detected into
Row photograph or optical scanner, obtain screen picture；Image procossing carried out to the screen picture of the screen to be detected, described in extraction
The characteristics of image of screen picture；According to described image feature, determine whether the screen to be detected is non-defective unit.To circular hole mobile phone
In the detection process of screen, the screen is detected by the way of camera system and computer picture detection, is effectively mentioned
High detection efficiency and recall rate.
Further, the screen to be detected is equipped with the hole of non-display function, after obtaining the screen picture, positioning
The image of the hole peripheral region is extracted in the step of extracting described image feature in the position in hole on the screen to be detected
Feature after obtaining the characteristics of image of the hole peripheral region, compares with the characteristics of image in normal circular region, obtains
The defect characteristic in the hole judges whether the screen to be detected is non-defective unit with this.The present invention is for circular hole screen needle
To the system detection scheme of property, for positive hole light leakage, black glue invasion, the detection of side leakage light bad item is obvious, compares artificial lift
80% recall rate, greatly reduces artificial pressure, larger for going out lotus quality-improving amplitude, increases customer satisfaction.
Mobile phone screen detection method of the present invention and device are made furtherly with reference to the accompanying drawings and examples
It is bright.
Detailed description of the invention
Fig. 1 is the step schematic diagram of mobile phone screen detection method of the present invention；
Fig. 2 is the structural schematic diagram of mobile phone screen detection device of the present invention.
Specific embodiment
It is the preferred example of mobile phone screen detection method of the present invention and device below, does not therefore limit this hair
Bright protection scope.
Embodiment one
Referring to FIG. 1, showing a kind of step schematic diagram of mobile phone screen detection method, the present embodiment mobile phone screen in figure
Detection method includes:
Step S1 extracts screen to be detected.
Step S2 carries out photograph or optical scanner to the screen to be detected, obtains screen picture.
Step S3 carries out image procossing to the screen picture of the screen to be detected, extracts the image of the screen picture
Feature.
Step S4 determines whether the screen to be detected is non-defective unit according to described image feature.
Specifically, in the present embodiment, the screen to be detected is liquid crystal display, and the screen to be detected is equipped with non-
The circular hole of display function newly enters the circular hole screen in market.Circular hole screen has the characteristics that screen accounting is high, but complex process is easy
It is existing bad.
In the present embodiment, the method for screen picture is extracted as photograph, can use special optical camera or camera shooting
Equipment shoots the screen to be measured, can also be shot with the camera in existing detection device, in other implementations
It in example, can also be scanned using optical scanning device, the present invention is without limitation.
In the present embodiment, the circular hole being easy to appear for circular hole is bad, such as the positive light leakage of circular hole, is obtaining the screen
After image, the position of circular hole on the screen to be detected is positioned.Specifically, it is found on the screen to be detected and meets circular hole spy
The region of sign, it is determined whether be circular hole.In the present embodiment, using electronic system, the screen picture is analyzed, is found
Meet the region of circular hole feature, it is determined whether be circular hole.It in other embodiments, can also be directly by camera described to be checked
It surveys on screen and positions the position of the circular hole, and this Information Conduction is exported to screen picture.
Behind the position of positioning round orifice, binaryzation and mean value computation are carried out to the screen picture of the circular hole neighboring area,
Obtain the characteristics of image of the hole peripheral region.Binaryzation and mean value computation are that the screen picture is carried out pixelation analysis
Computerized algorithm analysis method, benefit is that the characteristics of image of screen to be detected quantizes according to the difference of gray scale, according to it
Different numerical value is able to reflect out the difference of the screen picture feature to be detected and non-defective unit screen picture feature, can also reflect
Out in the screen to be detected normal region and defect area characteristics of image difference.
In the present embodiment, after the characteristics of image for obtaining the circular region, with normal circular region
Characteristics of image compare, obtain the defect characteristic of the circular hole, judge whether the screen to be detected is non-defective unit with this.Circular hole
Bad is mostly positive bad light-leaking, can be had any different with normal region in the gray scale of circular pixel, can be efficiently using this method
Detect the positive bad light-leaking of circular hole.
Therefore, it according to the mobile phone screen detection method of the present embodiment, using the form of automation, is examined automatically by Mechatronic Systems
The defect characteristic for surveying circular hole screen, effectively increases detection efficiency and recall rate.Compared to the recall rate of artificial lift 80%, for
Artificial pressure greatly reduces, larger for going out lotus quality-improving amplitude, increases customer satisfaction.
It should be noted that in the production process of circular hole screen, it is bad to be also easy to occur black glue invasion, that is, is punching
Cheng Zhong, the viewing area of the sealing compound intrusion circular of liquid crystal display.In the present embodiment, can also bad one be invaded to black glue
And it is detected.Specifically,
Image procossing is carried out in the screen picture to the screen to be detected, extracts the characteristics of image of the hole peripheral region
The step of in, the area-of-interest in the screen picture is extracted, by algorithm enhancement method, by the figure of the area-of-interest
As feature and the comparison of entopic characteristics of image, detect whether the screen to be detected is non-defective unit.
The area-of-interest in the screen picture is extracted, by algorithm enhancement method, by the figure of the area-of-interest
The step of comparing as feature and entopic characteristics of image includes: the area-of-interest in the positioning screen picture, to institute
The long side edge region for stating area-of-interest carries out region growing processing, finds pixel and changes apparent feature locations, according to pre-
The change threshold first set judges the feature locations with the presence or absence of bad.Using this method, it is black that detection can be effectively improved
Glue invades undesirable efficiency, and synchronous with the positive bad light-leaking of test hole can carry out.
It should be noted that being also easy to side bad light-leaking occur or side view being shown in the production process of circular hole screen
Uneven (mura), the side bad light-leaking and side view show that uneven (mura) refers to the hair when observing display screen at a certain angle
It is bad caused by raw grey scale change.
It is uneven for side bad light-leaking or side view display, in the present embodiment, take a picture to the screen to be detected
Or optical scanner, the step of obtaining screen picture, include: during carrying out photograph or optical scanner to the screen to be detected,
Inclining greater than 0 degree is kept between the in-plane in the direction and the screen to be detected of the photograph or optical scanner
Angle.
Specifically, it is synchronized using four cameras and photograph or optical scanner is carried out to the screen to be detected, obtain four sides
To the screen picture of above-mentioned screen to be detected.In other embodiments, can also utilize more than four cameras synchronize to it is described to
Detection screen carries out photograph or optical scanner.
Image procossing is carried out to the screen picture of the screen to be detected, extracts the characteristics of image of the hole peripheral region
Step includes: to carry out independent image procossing to every image of the multiple camera shooting, and then image is overlapped processing and is
One final detection figure.According to this final detection figure, determine whether side bad light-leaking or side view are shown the screen to be detected
It is uneven.
Embodiment two
Referring to FIG. 2, showing a kind of mobile phone screen detection device in Fig. 2, comprising:
Filming apparatus 101 obtains screen picture for screen to be detected to be taken pictures or scanned.
Storage unit 102 is connected, for storing the screen picture with the filming apparatus 101.
Processing unit 103 is connected with the storage unit 102, for carrying out image procossing to the screen picture, mentions
Take the characteristics of image of the screen picture.
Detection unit 104 is connected with the detection unit 103, for determining described to be checked according to described image feature
Survey whether screen is non-defective unit.
Specifically, in the present embodiment, the screen to be detected is liquid crystal display, and the screen to be detected is equipped with non-
The circular hole of display function newly enters the circular hole screen in market.Circular hole screen has the characteristics that screen accounting is high, but complex process is easy
It is existing bad.
In the present embodiment, for filming apparatus 101 for extracting screen picture, filming apparatus 101 can be special optics
Camera or picture pick-up device shoot the screen to be measured, the camera in existing detection device can also be used, at other
It, can also be without limitation for the optical scanning device present invention in embodiment.
In the present embodiment, the circular hole being easy to appear for circular hole is bad, such as the positive light leakage of circular hole, is obtaining the screen
After image, the position of circular hole on the screen to be detected is positioned.Specifically, it is found on the screen to be detected and meets circular hole spy
The region of sign, it is determined whether be circular hole.In the present embodiment, using processing unit 103, the screen picture is analyzed,
Find the region for meeting circular hole feature, it is determined whether be circular hole.It in other embodiments, can also be directly by camera described
The position of the circular hole is positioned on screen to be detected, and this Information Conduction is exported to screen picture.
Behind the position of positioning round orifice, processing unit 103 carries out binaryzation to the screen picture of the circular hole neighboring area
And mean value computation, obtain the characteristics of image of the hole peripheral region.Binaryzation and mean value computation are to carry out the screen picture
The computerized algorithm analysis method of pixelation analysis, benefit is the different numbers by the characteristics of image of screen to be detected according to gray scale
Value is able to reflect out the area of the screen picture feature to be detected and non-defective unit screen picture feature according to its different numerical value
Not, it also can reflect the difference of normal region and defect area characteristics of image in the screen to be detected.
In the present embodiment, after the characteristics of image for obtaining the circular region, detection unit 104 by its with just
The characteristics of image in normal circular region compares, and obtains the defect characteristic of the circular hole, judges the screen to be detected with this
It whether is non-defective unit.Bad circular hole is mostly positive bad light-leaking, can be had any different with normal region in the gray scale of circular pixel, is used
This method can efficiently detect the positive bad light-leaking of circular hole.
Therefore, it according to the mobile phone screen detection device of the present embodiment, using the form of automation, is examined automatically by Mechatronic Systems
The defect characteristic for surveying circular hole screen, effectively increases detection efficiency and recall rate.Compared to the recall rate of artificial lift 80%, for
Artificial pressure greatly reduces, larger for going out lotus quality-improving amplitude, increases customer satisfaction.
It should be noted that in the production process of circular hole screen, it is bad to be also easy to occur black glue invasion, that is, is punching
Cheng Zhong, the viewing area of the sealing compound intrusion circular of liquid crystal display.In the present embodiment, can also bad one be invaded to black glue
And it is detected.Specifically,
Image procossing is carried out in the screen picture to the screen to be detected, extracts the region of interest in the screen picture
Domain is compared the characteristics of image of the area-of-interest and entopic characteristics of image by algorithm enhancement method, detects institute
State whether screen to be detected is non-defective unit.
The area-of-interest in the screen picture is extracted, by algorithm enhancement method, by the figure of the area-of-interest
The step of comparing as feature and entopic characteristics of image includes: the area-of-interest in the positioning screen picture, to institute
The long side edge region for stating area-of-interest carries out region growing processing, finds pixel and changes apparent feature locations, according to pre-
The change threshold first set judges the feature locations with the presence or absence of bad.Using the present apparatus, it is black that detection can be effectively improved
Glue invades undesirable efficiency, and synchronous with the positive bad light-leaking of test hole can carry out.
It should be noted that being also easy to side bad light-leaking occur or side view being shown in the production process of circular hole screen
Uneven (mura), the side bad light-leaking and side view show that uneven (mura) refers to the hair when observing display screen at a certain angle
It is bad caused by raw grey scale change.
Uneven for side bad light-leaking or side view display, in the present embodiment, the filming apparatus 101 includes four phases
Machine, to the screen to be detected carry out photograph or optical scanner during, it is described photograph or optical scanner direction with it is described
An inclination angle for being greater than 0 degree is kept between the in-plane of the screen to be detected.
In other embodiments, the filming apparatus 101 can also include more than four cameras.
Image procossing is carried out to the screen picture of the screen to be detected, extracts the characteristics of image of the hole peripheral region
Step includes: to carry out independent image procossing to every image of the multiple camera shooting, and then image is overlapped processing and is
One final detection figure.According to this final detection figure, determine whether side bad light-leaking or side view are shown the screen to be detected
It is uneven.
The above embodiment is a preferred embodiment of the present invention, but embodiments of the present invention are not by above-described embodiment
Limitation, other any changes, modifications, substitutions, combinations, simplifications made without departing from the spirit and principles of the present invention,
It should be equivalent substitute mode, be included within the scope of the present invention.
Claims (10)
1. a kind of mobile phone screen detection method characterized by comprising
Extract screen to be detected；
Photograph or optical scanner are carried out to the screen to be detected, obtain screen picture；
Image procossing is carried out to the screen picture of the screen to be detected, extracts the characteristics of image of the screen picture；
According to described image feature, determine whether the screen to be detected is non-defective unit.
2. mobile phone screen detection method according to claim 1, it is characterised in that: the screen to be detected is liquid crystal display
Screen, the screen to be detected is equipped with the circular hole of non-display function, after obtaining the screen picture, positions the screen to be detected
The characteristics of image of the hole peripheral region is extracted in the step of extracting described image feature in the position in hole on curtain.
3. mobile phone screen detection method according to claim 2, it is characterised in that: circular hole on the positioning screen to be detected
Position the step of include: to find to meet the region of circular hole feature on the screen to be detected, it is determined whether be circular hole.
4. mobile phone screen detection method according to claim 3, it is characterised in that: to the screen map of the screen to be detected
As the step of carrying out image procossing, extracting the characteristics of image of the hole peripheral region includes:
Behind the position of location hole, binaryzation and mean value computation are carried out to the hole neighboring area, obtain the hole peripheral region
Characteristics of image；
According to described image feature, determine that the step of whether screen to be detected is non-defective unit includes: to obtain the hole peripheral region
After the characteristics of image in domain, compares with the characteristics of image in normal circular region, the defect characteristic in the hole is obtained, with this
Judge whether the screen to be detected is non-defective unit.
5. mobile phone screen detection method according to claim 2, it is characterised in that: to the screen map of the screen to be detected
As the step of carrying out image procossing, extracting the characteristics of image of the hole peripheral region includes: the sense extracted in the screen picture
Interest region is compared the characteristics of image of the area-of-interest and entopic characteristics of image by algorithm enhancement method,
Detect whether the screen to be detected is non-defective unit.
6. mobile phone screen detection method according to claim 5, it is characterised in that: the sense extracted in the screen picture is emerging
Interesting region is compared the characteristics of image of the area-of-interest and entopic characteristics of image by algorithm enhancement method
Step includes: the area-of-interest in the positioning screen picture, to the long side edge region carry out area of the area-of-interest
Domain growth process finds the apparent feature locations of pixel variation according to preset change threshold and judges the feature locations
With the presence or absence of bad.
7. mobile phone screen detection method according to claim 1, it is characterised in that: take a picture to the screen to be detected
Or optical scanner, the step of obtaining screen picture, include: during carrying out photograph or optical scanner to the screen to be detected,
Inclining greater than 0 degree is kept between the in-plane in the direction and the screen to be detected of the photograph or optical scanner
Angle.
8. mobile phone screen detection method according to claim 1, it is characterised in that: take a picture to the screen to be detected
Or optical scanner, the step of obtaining screen picture include: using multiple cameras synchronize to the screen to be detected carry out photograph or
Optical scanner；
The step of is carried out by image procossing, extracts the characteristics of image of the hole peripheral region for the screen picture of the screen to be detected
It include: that independent image procossing is carried out to every image of the multiple camera shooting, it is one that then image, which is overlapped processing,
Final detection figure.
9. a kind of mobile phone screen detection device characterized by comprising
Filming apparatus obtains screen picture for screen to be detected to be taken pictures or scanned；
Storage unit is connected with the filming apparatus, for storing the screen picture；
Processing unit is connected with the storage unit, for carrying out image procossing to the screen picture, extracts the screen
The characteristics of image of image；
Detection unit is connected with the detection unit, for whether determining the screen to be detected according to described image feature
For non-defective unit.
10. mobile phone screen detection device according to claim 9, it is characterised in that: the screen to be detected is equipped with non-
The hole of display function, after obtaining the screen picture, the processing unit can position described to be detected the filming apparatus
The position in hole on screen, and extract the characteristics of image of the hole peripheral region；
One is kept to be greater than between the in-plane in the direction and the screen to be detected of the photograph or optical scanner
Or the inclination angle equal to 0 degree.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201910432433.7A CN110220911A (en) | 2019-05-23 | 2019-05-23 | A kind of mobile phone screen detection method and device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910432433.7A CN110220911A (en) | 2019-05-23 | 2019-05-23 | A kind of mobile phone screen detection method and device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111208148A (en) * | 2020-02-21 | 2020-05-29 | 凌云光技术集团有限责任公司 | Dig hole screen light leak defect detecting system |
| CN111579211A (en) * | 2020-05-19 | 2020-08-25 | Oppo（重庆）智能科技有限公司 | Display screen detection method, detection device and computer storage medium |
| CN113008524A (en) * | 2019-12-20 | 2021-06-22 | 合肥欣奕华智能机器有限公司 | Screen light leakage detection method and device |
-
2019
- 2019-05-23 CN CN201910432433.7A patent/CN110220911A/en not_active Withdrawn
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113008524A (en) * | 2019-12-20 | 2021-06-22 | 合肥欣奕华智能机器有限公司 | Screen light leakage detection method and device |
| CN113008524B (en) * | 2019-12-20 | 2023-05-02 | 合肥欣奕华智能机器股份有限公司 | Screen light leakage detection method and device |
| CN111208148A (en) * | 2020-02-21 | 2020-05-29 | 凌云光技术集团有限责任公司 | Dig hole screen light leak defect detecting system |
| CN111579211A (en) * | 2020-05-19 | 2020-08-25 | Oppo（重庆）智能科技有限公司 | Display screen detection method, detection device and computer storage medium |
| CN111579211B (en) * | 2020-05-19 | 2022-09-30 | Oppo（重庆）智能科技有限公司 | Display screen detection method, detection device and computer storage medium |
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Application publication date: 20190910 |