CN103106859A - Display screen detecting method and device - Google Patents
Display screen detecting method and device Download PDFInfo
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- CN103106859A CN103106859A CN2013100649898A CN201310064989A CN103106859A CN 103106859 A CN103106859 A CN 103106859A CN 2013100649898 A CN2013100649898 A CN 2013100649898A CN 201310064989 A CN201310064989 A CN 201310064989A CN 103106859 A CN103106859 A CN 103106859A
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Abstract
The invention discloses a display screen detecting method and a device, wherein the display screen detecting method comprises: acquiring a plurality of images in a to-be-detected region of a display screen, and storing a parameter value of each image in the plurality of images; comparing the stored parameter values of the plurality of images, if two parameter values which a difference is larger than a presetting threshold exist in the stored parameters of the plurality of images, then the fact that the display screen is abnormal is confirmed. By comparing brightness value information in the plurality of images of the to-be-detected region, the display screen detecting method and the device are capable of judging whether the display screen is defective or not according to the presetting threshold, and functions of an existing display screen detector are replenished, and therefore detecting efficiency of the display screen is improved.
Description
Technical field
The present invention relates to electronic applications, and especially, relate to a kind of detection method and device of display screen.
Background technology
The display screen sight surveymeter is applicable to the detection of the defective products of various display screens (comprising touch-screen), can detection display on screen bad point, colour-difference, character mistake, whether defectives such as " water ripples " is arranged, thereby improve the quality of products and enterprises production efficiency.
The function that existing display screen sight surveymeter major part does not all have " water ripples " to detect because this defective can occur in a lot of display screens, has caused enterprise to have more complicated detection operation when detection display shields like this, has wasted Enterprise Resource.
For display screen detector insufficiency in correlation technique, complicated display screen detects the problem of operation, not yet proposes at present effective solution.
Summary of the invention
For display screen detector insufficiency in correlation technique, complicated display screen detects the problem of operation, the present invention proposes a kind of detection method of display screen, whether can automatically detect display screen exists extremely, replenish the function of existing display screen detector, thereby improved the efficient that display screen detects.
Technical scheme of the present invention is achieved in that
A kind of detection method of display screen is provided according to an aspect of the present invention.
This detection method comprises:
Obtain a plurality of images in the zone to be detected of display screen, store the parameter value of each image in a plurality of images;
The parameter value of a plurality of images to storage compares, if exist difference greater than two parameter values of predetermined threshold in the parameter value of a plurality of images of storage, determines that display screen occurs abnormal.
And, before obtaining multiple image from zone to be detected, specify zone to be detected according to the wrong occurrence frequency of regional in display screen.
In addition, before the parameter value of each image, this detection method further comprises in a plurality of images of storage:
Division rule according to predetermined is divided into a plurality of parameter channel with each image in a plurality of images;
And the parameter value of storing each image in a plurality of images comprises:
According to a parameter channel in a plurality of parameter channel, the parameter value of a plurality of images of storage.
Alternatively, a plurality of parameter channel comprise tone passage, saturation degree passage, luminance channel.
Further, the parameter value of storage is corresponding to luminance channel.
In addition, the parameter value of a plurality of images of storage compared comprise:
According to the size of parameter value, the parameter value of a plurality of images of storage is sorted, and the parameter value of maximum and minimum parameter value are compared.
A kind of pick-up unit of display screen is provided according to an aspect of the present invention.
This pick-up unit comprises:
Memory module is used for storing the parameter value of each image in a plurality of images after a plurality of images in the zone to be detected that obtains display screen;
Determination module compares at the parameter value of a plurality of images to storage, if exist difference greater than two parameter values of predetermined threshold in the parameter value of a plurality of images of storage, is used for determining that display screen occurs abnormal.
And before the parameter value of each image, this pick-up unit further comprises in a plurality of images of memory module storage:
Divide module, the division rule according to predetermined is divided into a plurality of parameter channel with each image in a plurality of images;
And in a plurality of images of memory module storage, the parameter value of each image comprises:
According to a parameter channel in a plurality of parameter channel, the parameter value of a plurality of images of storage.
Alternatively, a plurality of parameter channel comprise tone passage, saturation degree passage, luminance channel.
Further, the parameter value of memory module storage is corresponding to luminance channel.
The present invention can judge whether display screen exists defective, has replenished the function of existing display screen detector according to predetermined threshold by the brightness value information in the multiple image in zone more to be detected, thereby has improved the efficient that display screen detects.
Description of drawings
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, the below will do to introduce simply to the accompanying drawing of required use in embodiment, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, under the prerequisite of not paying creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the process flow diagram according to the detection method of the embodiment of the present invention;
Fig. 2 is the process flow diagram of " water ripples " defective during the detection method detection display of the use embodiment of the present invention shields;
Fig. 3 is the block diagram according to the pick-up unit of the embodiment of the present invention.
Specific implementation method
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, obviously, described embodiment is only the present invention's part embodiment, rather than whole embodiment.Based on the embodiment in the present invention, the every other embodiment that those of ordinary skills obtain belongs to the scope of protection of the invention.
According to embodiments of the invention, provide a kind of detection method of display screen.
As shown in Figure 1, the detection method according to the metadata of the embodiment of the present invention comprises:
Step S101 obtains a plurality of images in the zone to be detected of display screen, stores the parameter value of each image in a plurality of images; Wherein, a plurality of images that obtain the zone to be detected of display screen can be completed by the photo of repeatedly taking zone to be detected
Step S103 compares the parameter value of a plurality of images of storage, if exist difference greater than two parameter values of predetermined threshold in the parameter value of a plurality of images of storage, determines that display screen occurs abnormal.
And, determine that display screen display screen occurs extremely can referring to and " water ripples " or similar defective with other naming occur.Because the visualize of " water ripples " defective is judder, just as a rule water ripples changing, so this defective is present in time dimension.Just because of this, detect this defective and need to take multiple photos.
And, before obtaining multiple image from zone to be detected, specify zone to be detected according to the wrong occurrence frequency of regional in display screen.Because some zone of display screen is not prone to this type of mistake, so will judge in advance the zone of easily makeing mistakes, then can utilize rectangle frame that regional frame to be detected is gone out.Can set the predetermined value that the mistake in each zone occurs during operation, higher than the pre-timing that sets, be zone to be detected with this Region specification when the frequency of makeing mistakes in a zone.
In addition, before the parameter value of each image, this detection method further comprises in a plurality of images of storage:
Division rule according to predetermined is divided into a plurality of parameter channel with each image in a plurality of images;
And the parameter value of storing each image in a plurality of images comprises:
According to a parameter channel in a plurality of parameter channel, the parameter value of a plurality of images of storage.
Alternatively, a plurality of parameter channel comprise tone passage, saturation degree passage, luminance channel.
Further, the parameter value of storage is corresponding to luminance channel.Brightness whether occurs by analysis image and change, and then analyze " water ripples " defective.
In addition, the parameter value of a plurality of images of storage compared comprise:
According to the size of parameter value, the parameter value of a plurality of images of storage is sorted, and the parameter value of maximum and minimum parameter value are compared.
As shown in Figure 2, can be for detection of " water ripples " defective of display screen according to the detection method of the metadata of the embodiment of the present invention, concrete steps are as follows:
After beginning test, execution in step S201 defines zone to be detected;
Execution in step S203 takes N (N＞10) photos, and stores;
Execution in step S205 is divided into the HSV space with every width image, obtains V (brightness) channel value information;
Execution in step S207 deposits the brightness number information of all images in array, and makes quicksort;
Execution in step S209, it is poor that the maximal value of the brightness number information that obtains sorting and minimum value are done, and obtains difference;
Whether execution in step S211 judges resulting difference greater than threshold value, if greater than, judge it is that display screen exists " water ripples " defective, if not correct.Finish.
A kind of pick-up unit of display screen is provided according to an aspect of the present invention.
This pick-up unit comprises:
Memory module 31 is used for storing the parameter value of each image in a plurality of images after a plurality of images in the zone to be detected that obtains display screen;
Determination module 32 compares at the parameter value of a plurality of images to storage, if exist difference greater than two parameter values of predetermined threshold in the parameter value of a plurality of images of storage, is used for determining that display screen occurs abnormal.
And before the parameter value of each image, this pick-up unit further comprises in memory module 31 a plurality of images of storage:
Divide the module (not shown), the division rule according to predetermined is divided into a plurality of parameter channel with each image in a plurality of images;
And in memory module 31 a plurality of images of storage, the parameter value of each image comprises:
According to a parameter channel in a plurality of parameter channel, the parameter value of a plurality of images of storage.
Alternatively, a plurality of parameter channel comprise tone passage, saturation degree passage, luminance channel.
Further, the parameter value of memory module 31 storages is corresponding to luminance channel.
In sum, by means of technique scheme of the present invention, by the brightness value information in the multiple image in zone more to be detected, can judge accurately whether display screen exists defective, thereby replenished the function of existing display screen tester, for the factory testing of display screen provides great convenience, help enterprise to improve the product quality of dispatching from the factory.
The above is only preferred embodiment of the present invention, and is in order to limit the present invention, within the spirit and principles in the present invention not all, any modification of doing, is equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (10)
1. the detection method of a display screen, is characterized in that, described detection method comprises:
Obtain a plurality of images in the zone to be detected of display screen, store the parameter value of each image in described a plurality of images;
The parameter value of described a plurality of images to storage compares, if exist difference greater than two parameter values of predetermined threshold in the parameter value of described a plurality of images of storage, determines that described display screen occurs abnormal.
2. detection method according to claim 1, is characterized in that, before obtaining multiple image from zone to be detected, specifies described zone to be detected according to the wrong occurrence frequency of regional in described display screen.
3. detection method according to claim 1, is characterized in that, before the parameter value of each image, further comprises in the described a plurality of images of storage:
Division rule according to predetermined is divided into a plurality of parameter channel with each image in described a plurality of images;
And the parameter value of storing each image in described a plurality of images comprises:
According to a parameter channel in described a plurality of parameter channel, the parameter value of the described a plurality of images of storage.
4. detection method according to claim 3, is characterized in that, described a plurality of parameter channel comprise tone passage, saturation degree passage, luminance channel.
5. detection method according to claim 4, is characterized in that, the described parameter value of storage is corresponding to described luminance channel.
6. detection method according to claim 1, is characterized in that, the parameter value of described a plurality of images of storage compared comprise:
According to the size of parameter value, the parameter value of described a plurality of images of storage is sorted, and the parameter value of maximum and minimum parameter value are compared.
7. the pick-up unit of a display screen, is characterized in that, described pick-up unit comprises:
Memory module is used for storing the parameter value of each image in described a plurality of images after a plurality of images in the zone to be detected that obtains display screen;
Determination module is used for the parameter value of described a plurality of images of storage is compared, if exist difference greater than two parameter values of predetermined threshold in the parameter value of described a plurality of images of storage, determines that described display screen occurs abnormal.
8. pick-up unit according to claim 7, is characterized in that, further comprises:
Divide module, be used for before the parameter value of described a plurality of each image of image of described memory module storage, the division rule according to predetermined is divided into a plurality of parameter channel with each image in described a plurality of images;
And described memory module storage is used for a parameter channel according to described a plurality of parameter channel, the parameter value of the described a plurality of images of storage.
9. pick-up unit according to claim 8, is characterized in that, described a plurality of parameter channel comprise tone passage, saturation degree passage, luminance channel.
10. pick-up unit according to claim 9, is characterized in that, the described parameter value of described memory module storage is corresponding to described luminance channel.
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016145888A1 (en) * | 2015-09-29 | 2016-09-22 | 中兴通讯股份有限公司 | Display screen processing method and device |
| CN106291187A (en) * | 2016-08-11 | 2017-01-04 | 京东方科技集团股份有限公司 | The electrostatic discharge detection device of a kind of display device and detection method |
| CN108228402A (en) * | 2017-12-29 | 2018-06-29 | 努比亚技术有限公司 | A kind of display effect appraisal procedure, terminal and computer readable storage medium |
| CN108885180A (en) * | 2017-04-12 | 2018-11-23 | 意力(广州)电子科技有限公司 | A kind of detection method and device of display screen |
| CN113362729A (en) * | 2021-06-25 | 2021-09-07 | 利晶微电子技术(江苏)有限公司 | LED display screen overhauling method and device and LED display screen overhauling system |
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| CN101840078A (en) * | 2009-03-20 | 2010-09-22 | 北京京东方光电科技有限公司 | Water ripple grade testing method |
| CN102460106A (en) * | 2009-06-18 | 2012-05-16 | 夏普株式会社 | Defect inspection method and defect inspection device for display panel |
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| WO1997000452A2 (en) * | 1995-06-13 | 1997-01-03 | Photon Dynamics, Inc. | Mura detection apparatus and method |
| CN101840078A (en) * | 2009-03-20 | 2010-09-22 | 北京京东方光电科技有限公司 | Water ripple grade testing method |
| CN102460106A (en) * | 2009-06-18 | 2012-05-16 | 夏普株式会社 | Defect inspection method and defect inspection device for display panel |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2016145888A1 (en) * | 2015-09-29 | 2016-09-22 | 中兴通讯股份有限公司 | Display screen processing method and device |
| CN106291187A (en) * | 2016-08-11 | 2017-01-04 | 京东方科技集团股份有限公司 | The electrostatic discharge detection device of a kind of display device and detection method |
| CN108885180A (en) * | 2017-04-12 | 2018-11-23 | 意力(广州)电子科技有限公司 | A kind of detection method and device of display screen |
| CN108885180B (en) * | 2017-04-12 | 2021-03-23 | 意力(广州)电子科技有限公司 | Display screen detection method and device |
| CN108228402A (en) * | 2017-12-29 | 2018-06-29 | 努比亚技术有限公司 | A kind of display effect appraisal procedure, terminal and computer readable storage medium |
| CN108228402B (en) * | 2017-12-29 | 2021-11-19 | 努比亚技术有限公司 | Display effect evaluation method, terminal and computer readable storage medium |
| CN113362729A (en) * | 2021-06-25 | 2021-09-07 | 利晶微电子技术(江苏)有限公司 | LED display screen overhauling method and device and LED display screen overhauling system |
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| CN103106859B (en) | 2015-11-25 |
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Effective date of registration: 20160310 Address after: 100094, Room 502, building 5, new material building, No. 7 Feng Hui Road, Beijing, Haidian District Patentee after: Beijing Xinghe Taishite Technology Co., Ltd. Address before: 100094, Room 501, building 5, new material building, No. 7 Feng Hui Road, Beijing, Haidian District Patentee before: Beijing Star River Comtes Science & Technology Development Co., Ltd. |