CN105424710A - Method and device for detecting screen of electronic equipment - Google Patents
Method and device for detecting screen of electronic equipment Download PDFInfo
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- CN105424710A CN105424710A CN201510809029.9A CN201510809029A CN105424710A CN 105424710 A CN105424710 A CN 105424710A CN 201510809029 A CN201510809029 A CN 201510809029A CN 105424710 A CN105424710 A CN 105424710A
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- 238000000034 method Methods 0.000 title claims abstract description 50
- 238000012360 testing method Methods 0.000 claims abstract description 110
- 230000000694 effects Effects 0.000 claims abstract description 102
- 238000001514 detection method Methods 0.000 claims abstract description 74
- 230000001276 controlling effect Effects 0.000 claims description 42
- 230000002950 deficient Effects 0.000 claims description 28
- 230000001105 regulatory effect Effects 0.000 claims description 11
- 238000004140 cleaning Methods 0.000 claims description 10
- 230000003760 hair shine Effects 0.000 claims description 10
- 230000010354 integration Effects 0.000 claims description 3
- 238000005286 illumination Methods 0.000 abstract description 12
- 238000001454 recorded image Methods 0.000 abstract 2
- 230000008569 process Effects 0.000 description 7
- 239000000428 dust Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 230000007547 defect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008439 repair process Effects 0.000 description 2
- 238000012550 audit Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
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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
- G01N21/8806—Specially adapted optical and illumination features
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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
- G01N2021/8893—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 providing a video image and a processed signal for helping visual decision
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N2201/00—Features of devices classified in G01N21/00
- G01N2201/06—Illumination; Optics
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Abstract
The invention provides a method for detecting a screen of electronic equipment. The method comprises the steps that illumination is projected to the screen of the electronic equipment; a testing image is displayed by the screen of the electronic equipment; the testing image displayed by the screen of the electronic equipment is recorded, and a recorded image is obtained; a plurality of image frames are extracted from the recorded image, and the image displaying effect of the detected screen is obtained through a multi-image-frame weighted average method; the image displaying effect of the detected screen is compared with a standard screen image displaying effect, and when similarity reaches a preset value or above, it is judged that screen detection of the electronic equipment is qualified; otherwise, it is judged that screen detection of the electronic equipment is unqualified. The invention further provides a device for detecting the screen of the electronic equipment. The device comprises a module and a structure including instructions capable of being executed by a computer so as to execute the method. By means of the method and device, the problem that due to uneven illumination in the prior art, the photo taking effect is influenced can be effectively solved, and then the caused problem of influencing judgment of the screen image displaying effect is further solved.
Description
Technical field
The present invention relates to electronic equipment screen detection field, espespecially a kind of electronic equipment screen detection method and device.
Background technology
In current electronic equipment manufacturing industry, example is fabricated to mobile phone, the image deflects detection means of mobile phone screen is mainly relied on and is taken pictures by traditional industry camera, the histogrammic method that rear acquisition is taken pictures, thus judge mobile phone screen whether defectiveness by histogram.
But traditional industry camera may produce the problem of uneven illumination when taking pictures, can there is error photo unavoidably.Thus directly use the photo of shooting to draw histogram, its result also there will be certain deviation.
Thus, the present inventor is devoted to design a kind of electronic equipment screen detection method and device, can effectively solve the problem.
Summary of the invention
The object of this invention is to provide a kind of electronic equipment screen detection method and device, effectively can solve taking pictures the problem of effect due to uneven illumination impact of existing in prior art, and solve further cause affect the problem that screen picture display effect judges.
Technical scheme provided by the invention is as follows:
A kind of electronic equipment screen detection method, it comprises the steps:
Shine to electronic equipment screen projection light;
Electronic equipment screen display test pattern;
The described test pattern that electronic equipment screen is play is recorded, obtains recording image;
From described recording image, extract multiple picture frame, and adopt the average weighted method of many picture frames to obtain detecting display image screen effect;
Described detection display image screen effect and standard screen are shown image effect contrast, when similarity reaches preset value and be above, judge that electronic equipment screen detects qualified; Otherwise, judge that electronic equipment screen detects defective.
Preferably, described electronic equipment screen detection method described play test pattern step by electronic equipment screen before also comprise:
Screen surface is cleaned.
Further preferably, the described step to electronic equipment screen projection light photograph comprises further: shining to electronic equipment screen projection light with the position of electronic equipment screen at a distance of predeterminable range;
Further preferably, the step that the described described test pattern play electronic equipment screen is recorded comprises further: recording the described test pattern that electronic equipment screen is play at a distance of the position of presetting shooting distance with electronic equipment screen.
Further preferably, the step of described electronic equipment screen display test pattern comprises further: electronic equipment screen shows multiple solid-color image successively;
Preferably, also comprise after the average weighted method of the many picture frames of described employing obtains the step of detection display image screen effect: extract the area-of-interest on screen; Describedly described detection display image screen effect and standard screen are shown the step that image effect carries out contrasting and comprise further: the detection display image screen effect of the described area-of-interest on screen and standard screen are shown image effect and contrasts.
Further preferably, described detection display image screen effect is histogram; Described standard screen display image effect is histogram.
Preferably, also comprise after described judgement electronic equipment screen detects underproof step:
Whether defective further by manually carrying out detected electrons device screen.
Present invention also offers a kind of electronic equipment screen pick-up unit, it comprises:
Testing light source, it is for shining to electronic equipment screen projection light;
Industrial camera, it is recorded for the described test pattern play electronic equipment screen, obtains recording image;
Control system, it shines to electronic equipment screen projection light for controlling described testing light source; Control electronic equipment screen display test pattern; And record for controlling described industrial camera; And from described recording image, extract multiple picture frame for controlling, and control to adopt the average weighted method of many picture frames to obtain detecting display image screen effect; And control that further described detection display image screen effect and standard screen are shown image effect and contrast, and reach preset value when similarity and above time, judge that electronic equipment screen detection is qualified; Otherwise, judge that electronic equipment screen detects defective.
Preferably, described control system comprises further:
Embedded control panel and controller;
Described embedded control panel shines to electronic equipment screen projection light for controlling described testing light source;
Described controller is for controlling described embedded control panel; And control electronic equipment screen display test pattern; And record for controlling described industrial camera; And from described recording image, extract multiple picture frame for controlling, and control to adopt the average weighted method of many picture frames to obtain detecting display image screen effect; And control that further described detection display image screen effect and standard screen are shown image effect and contrast, and reach preset value when similarity and above time, judge that electronic equipment screen detection is qualified; Otherwise, judge that electronic equipment screen detects defective.
Preferably, described electronic equipment screen pick-up unit also comprises:
Screen cleaning structure, it is for cleaning screen surface;
And/or;
Light source position adjustment structure, it is for regulating the position of described testing light source, is shining with the position of electronic equipment screen at a distance of predeterminable range for described testing light source to electronic equipment screen projection light;
And/or;
Industrial camera position adjustment structure, it is for regulating the position of described industrial camera, is recording with electronic equipment screen for described industrial camera at a distance of the position of presetting shooting distance to the described test pattern that electronic equipment screen is play;
And/or;
Electronic apparatus fixing structure, it is for placing and stationary electronic devices.
Preferably, described electronic equipment screen pick-up unit also comprises:
Shielding case body, its for by described testing light source, described industrial camera, described control system integration in box house.
By electronic equipment screen detection method provided by the invention and device, following at least one beneficial effect can be brought:
1, the present invention is when drawing display image screen effect, is to extract picture frame from the image recorded, and adopts the average weighted method of many picture frames to draw, and eliminates the impact of bad frame.The impact that the reasons such as the illumination existed in prior art cause taking pictures, also the method extracting picture frame after can first recording image by the present invention effectively solves, and ensure that the validity of drawn display image screen effect (such as histogram).
2, the present invention can before electronic equipment dispatches from the factory, realize the automatic detection of screen on a production line, can avoid producer that a large amount of underproof electronic equipment is rendered to market like this, reduce disqualification rate and the repair rate of the product that dispatches from the factory, reduce the defective user caused of screen simultaneously and use trouble.Fundamentally can reduce manpower and the resources costs of manufacturer.
3, the present invention has superiority on project organization, eliminates the external interference condition such as dust, fingerprint on electronic equipment screen before recording image information.
4, the present invention passes through the light position regulating testing light source when detecting, thus can eliminate because electronic equipment screen autoluminescence to be measured causes the reflective impact on shooting effect of minute surface; And by regulating the shooting distance between industrial camera and electronic equipment screen to be measured to optimize shooting effect.
5, testing process of the present invention is carried out in shielding case body, thus effectively ensures that test process (recording image process) carries out under relatively airtight and uniform lighting environment, solves the impact because uneven illumination reason causes recording process.
Accompanying drawing explanation
Below by clearly understandable mode, accompanying drawings preferred implementation, is further described the above-mentioned characteristic of a kind of electronic equipment screen detection method and device, technical characteristic, advantage and implementation thereof.
Fig. 1 is a kind of process flow diagram of electronic equipment screen detection method of the present invention;
Fig. 2 is the another kind of process flow diagram of electronic equipment screen detection method of the present invention;
Fig. 3 is a kind of module diagram of electronic equipment screen pick-up unit of the present invention;
Fig. 4 is the structural representation of a kind of specific embodiment of electronic equipment screen pick-up unit of the present invention;
Fig. 5 is the structural representation that Fig. 4 looks from another angle;
Fig. 6 is the structural representation that electronic equipment screen pick-up unit of the present invention is looked from shielding case body.
Drawing reference numeral illustrates:
101-electronic equipment to be measured; 102-electronic apparatus fixing structure; 103-screen cleaning structure; 104-industrial camera position adjustment structure; 105-light source position adjustment structure; 106-electronic device data interface to be measured; 107-industrial camera; 108-testing light source; 201-first X button; 202-releases the button; 203-second X button; 301-shielding case body; 501-embedded control panel.
Embodiment
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, contrast accompanying drawing is illustrated the specific embodiment of the present invention below.Apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings, and obtain other embodiment.
For making simplified form, only schematically show part related to the present invention in each figure, they do not represent its practical structures as product.In addition, be convenient to make simplified form understand, there are the parts of identical structure or function in some figure, only schematically depict one of them, or only marked one of them.In this article, " one " not only represents " only this ", also can represent the situation of " more than one ".
In embodiments of the invention one, with reference to Fig. 1, electronic equipment screen detection method comprises:
Step S101: shine to electronic equipment screen projection light;
Step S102: electronic equipment screen display test pattern;
Step S103: record the described test pattern that electronic equipment screen is play, obtains recording image;
Step S104: extract multiple picture frame from recording image;
Step S105: adopt the average weighted method of many picture frames to obtain detecting display image screen effect;
Step S106: detection display image screen effect and standard screen are shown image effect and contrasts, whether the similarity of both judgements reaches preset value; When judging that similarity reaches preset value (and reaching more than preset value), perform step S107; When judging that similarity does not reach preset value, perform step S108;
Step S107: judge that electronic equipment screen detects qualified;
Step S108: judge that electronic equipment screen detects defective.
In the present embodiment, electronic equipment can be mobile phone, panel computer etc., and screen can be LCD screen etc.Electronic equipment screen in the present embodiment is electronic equipment screen to be tested.
In embodiments of the invention two, electronic equipment screen detection method comprises the steps:
Shine to electronic equipment screen projection light;
Electronic equipment screen surface is cleaned;
Electronic equipment screen display test pattern;
The described test pattern that electronic equipment screen is play is recorded, obtains recording image;
Multiple picture frame is extracted from recording image;
The average weighted method of many picture frames is adopted to obtain detecting display image screen effect;
Detection display image screen effect and standard screen are shown image effect contrast, whether the similarity of both judgements reaches preset value; When judging that similarity reaches preset value (and reaching more than preset value), judge that electronic equipment screen detects qualified; When judging that similarity does not reach preset value, judge that electronic equipment screen detects defective.
Compared to the embodiment one of method, embodiment adds the step that screen surface is cleaned, the fingerprint etc. stayed when comprising dust on clearing screen and employee's taking and placing.Before recording display image screen, screen is cleaned, the external interference such as the dust on screen, fingerprint can be eliminated on the impact of recording image.
In embodiments of the invention three, electronic equipment screen detection method comprises the steps:
Shining to electronic equipment screen projection light with the position of electronic equipment screen at a distance of predeterminable range;
Electronic equipment screen display test pattern;
The described test pattern that electronic equipment screen is play is recorded, obtains recording image;
Multiple picture frame is extracted from recording image;
The average weighted method of many picture frames is adopted to obtain detecting display image screen effect;
Detection display image screen effect and standard screen are shown image effect contrast, whether the similarity of both judgements reaches preset value; When judging that similarity reaches preset value (and reaching more than preset value), judge that electronic equipment screen detects qualified; When judging that similarity does not reach preset value, judge that electronic equipment screen detects defective.
Compared to the embodiment one of method, the condition of illumination when the present embodiment optimizes test.Illumination can be provided by testing light source, after opening testing light source, regulates the light position of testing light source, such as, heightens or turn down to optimum position, and then eliminates because screen autoluminescence to be measured causes the reflective impact on shooting effect of minute surface.
In embodiments of the invention four, electronic equipment screen detection method comprises the steps:
Shining to electronic equipment screen projection light with the position of electronic equipment screen at a distance of predeterminable range;
Electronic equipment screen display test pattern;
At a distance of the position of presetting shooting distance, the described test pattern that electronic equipment screen is play is being recorded with electronic equipment screen, obtaining recording image;
Multiple picture frame is extracted from recording image;
The average weighted method of many picture frames is adopted to obtain detecting display image screen effect;
Detection display image screen effect and standard screen are shown image effect contrast, whether the similarity of both judgements reaches preset value; When judging that similarity reaches preset value (and reaching more than preset value), judge that electronic equipment screen detects qualified; When judging that similarity does not reach preset value, judge that electronic equipment screen detects defective.
Compared to the embodiment one of method, the condition of illumination when the present embodiment optimizes test.Illumination can be provided by testing light source, after opening testing light source, regulates the light position of testing light source, such as, heightens or turn down to optimum position, and then eliminates because screen autoluminescence to be measured causes the reflective impact on shooting effect of minute surface.
Compared to the embodiment one of method, the present embodiment also optimizes the position of the camera recording test pattern, such as, can adopt industrial camera, regulate the position of industrial camera, such as heighten or turn down, making the shooting distance between industrial camera and screen to be measured reach best, optimize shooting effect.
In embodiments of the invention five, electronic equipment screen detection method comprises the steps:
Shine to electronic equipment screen projection light;
Electronic equipment screen shows multiple pure color test pattern successively;
The described test pattern that electronic equipment screen is play is recorded, obtains recording image;
Multiple picture frame is extracted from recording image;
The average weighted method of many picture frames is adopted to obtain detecting display image screen effect;
Detection display image screen effect and standard screen are shown image effect contrast, whether the similarity of both judgements reaches preset value; When judging that similarity reaches preset value (and reaching more than preset value), judge that electronic equipment screen detects qualified; When judging that similarity does not reach preset value, judge that electronic equipment screen detects defective.
Compared to the embodiment one of method, the present embodiment optimizes the mode of electronic equipment display test pattern.The present embodiment, when showing image, shows multiple solid-color image, such as red, green, blue three kinds of solid-color image successively, and the time of display often kind of solid-color image can set, such as, continue the identical time respectively.Display solid-color image more easily detects the defect of screen, and showing multiple solid-color image can detect screen defect from multiple angles simultaneously.
In embodiments of the invention six, electronic equipment screen detection method comprises the steps:
Shine to electronic equipment screen projection light;
Electronic equipment screen display test pattern;
The described test pattern that electronic equipment screen is play is recorded, obtains recording image;
Multiple picture frame is extracted from recording image;
The average weighted method of many picture frames is adopted to obtain detecting display image screen effect;
Extract the area-of-interest on screen;
The detection display image screen effect of the described area-of-interest on screen and standard screen are shown image effect contrast, whether the similarity of both judgements reaches preset value; When judging that similarity reaches preset value (and reaching more than preset value), judge that electronic equipment screen detects qualified; When judging that similarity does not reach preset value, judge that electronic equipment screen detects defective.
Compared to the embodiment one of method, the present embodiment optimizes contrast and detects the region that display image screen effect and standard screen show image effect, namely the area-of-interest (ROI) on described screen, the edge of such as screen, and screen centre position etc., the test of whole screen can be reduced into the test to the key area on screen like this, contrast more purposive.
In embodiments of the invention seven, electronic equipment screen detection method comprises the steps:
Shine to electronic equipment screen projection light;
Electronic equipment screen display test pattern;
The described test pattern that electronic equipment screen is play is recorded, obtains recording image;
Multiple picture frame is extracted from recording image;
The average weighted method of many picture frames is adopted to obtain detecting the histogram of display image screen effect;
Contrasted by the histogram that the histogram and standard screen that detect display image screen effect show image effect, whether the similarity of both judgements reaches preset value; When judging that similarity reaches preset value (and reaching more than preset value), judge that electronic equipment screen detects qualified; When judging that similarity does not reach preset value, judge that electronic equipment screen detects defective.
Compared to the embodiment one of method, detection display image screen effect and standard screen display image effect are optimized for histogram by the present embodiment, contrast more direct, vivid.In other embodiments, other graphical effects also can be adopted to contrast, such as bar chart or string diagram etc.
In embodiments of the invention eight, electronic equipment screen detection method comprises the steps:
Shine to electronic equipment screen projection light;
Electronic equipment screen display test pattern;
The described test pattern that electronic equipment screen is play is recorded, obtains recording image;
Multiple picture frame is extracted from recording image;
The average weighted method of many picture frames is adopted to obtain detecting display image screen effect;
Detection display image screen effect and standard screen are shown image effect contrast, whether the similarity of both judgements reaches preset value; When judging that similarity reaches preset value (and reaching more than preset value), judge that electronic equipment screen detects qualified; When judging that similarity does not reach preset value, judge that electronic equipment screen detects defective; And it is whether defective further by manually carrying out detected electrons device screen.
Compared to the embodiment one of method, embodiment adds and underproof screen is detected further again by the step of manual detection to production line, can audit further and determine testing result.
In one of electronic equipment screen detection method of the present invention comparatively complete embodiment, with reference to Fig. 2, comprising:
Step S201: shining to electronic equipment screen projection light with the position of electronic equipment screen at a distance of predeterminable range;
Step S202: screen surface is cleaned;
Step S203: electronic equipment screen shows multiple pure color test pattern successively;
Step S204: at a distance of the position of presetting shooting distance, the described test pattern that electronic equipment screen is play is being recorded with electronic equipment screen, obtaining recording image;
Step S205: extract multiple picture frame from recording image;
Step S206: adopt the average weighted method of many picture frames to obtain detecting the histogram of display image screen effect;
Step S207: extract the area-of-interest on screen;
Step S208: contrasted by the histogram that the histogram and standard screen that detect display image screen effect show image effect, whether the similarity of both judgements reaches preset value; When judging that similarity reaches preset value (and reaching more than preset value), perform step S209; When judging that similarity does not reach preset value, perform step S210;
Step S209: judge that electronic equipment screen detects qualified;
Step S210: judge that electronic equipment screen detects defective, and perform step S211;
Step S211: whether manual detection electronic equipment screen is defective.
Present invention also offers a kind of electronic equipment screen pick-up unit, it can apply electronic equipment screen detection method as the aforementioned.
In the embodiment one of electronic equipment screen pick-up unit of the present invention, with reference to Fig. 3, comprising:
Testing light source, it is for shining to electronic equipment screen projection light;
Industrial camera, it is recorded for the described test pattern play electronic equipment screen, obtains recording image;
Control system, it shines to electronic equipment screen projection light for controlling described testing light source; Control electronic equipment screen display test pattern; And record for controlling described industrial camera; And from described recording image, extract multiple picture frame for controlling, and control to adopt the average weighted method of many picture frames to obtain detecting display image screen effect; And control that further described detection display image screen effect and standard screen are shown image effect and contrast, and reach preset value when similarity and above time, judge that electronic equipment screen detection is qualified; Otherwise, judge that electronic equipment screen detects defective.
In the embodiment two of electronic equipment screen pick-up unit of the present invention, comprising:
Testing light source, it is for shining to electronic equipment screen projection light;
Industrial camera, it is recorded for the described test pattern play electronic equipment screen, obtains recording image;
Embedded control panel and controller;
Described embedded control panel shines to electronic equipment screen projection light for controlling described testing light source;
Described controller is for controlling described embedded control panel; And control electronic equipment screen display test pattern; And record for controlling described industrial camera; And from described recording image, extract multiple picture frame for controlling, and control to adopt the average weighted method of many picture frames to obtain detecting display image screen effect; And control that further described detection display image screen effect and standard screen are shown image effect and contrast, and reach preset value when similarity and above time, judge that electronic equipment screen detection is qualified; Otherwise, judge that electronic equipment screen detects defective.
Compared to the embodiment one of device, control system is refined as controller (i.e. PC) and embedded control panel two parts by the present embodiment, and wherein, embedded control panel can embed in shielding case body and arrange.
In the embodiment three of electronic equipment screen pick-up unit of the present invention, comprising:
Testing light source, it is for shining to electronic equipment screen projection light;
Industrial camera, it is recorded for the described test pattern play electronic equipment screen, obtains recording image;
Screen cleaning structure, it is for cleaning screen surface;
Embedded control panel and controller;
Described embedded control panel for controlling described testing light source to electronic equipment screen projection light photograph, and cleans screen surface for controlling screen cleaning structure;
Described controller is for controlling described embedded control panel; And control electronic equipment screen display test pattern; And record for controlling described industrial camera; And from described recording image, extract multiple picture frame for controlling, and control to adopt the average weighted method of many picture frames to obtain detecting display image screen effect; And control that further described detection display image screen effect and standard screen are shown image effect and contrast, and reach preset value when similarity and above time, judge that electronic equipment screen detection is qualified; Otherwise, judge that electronic equipment screen detects defective.
Compared to the embodiment one of device, embodiment adds screen cleaning structure, the fingerprint etc. stayed when may be used for dust on clearing screen and employee's taking and placing.Before recording display image screen, screen is cleaned, the external interference such as the dust on screen, fingerprint can be eliminated on the impact of recording image.
In the embodiment four of electronic equipment screen pick-up unit of the present invention, comprising:
Testing light source, it is for shining to electronic equipment screen projection light;
Industrial camera, it is recorded for the described test pattern play electronic equipment screen, obtains recording image;
Light source position adjustment structure, it is for regulating the position of described testing light source, is shining with the position of electronic equipment screen at a distance of predeterminable range for described testing light source to electronic equipment screen projection light;
Embedded control panel and controller;
Described embedded control panel shines to electronic equipment screen projection light for controlling described testing light source;
Described controller is for controlling described embedded control panel; And control electronic equipment screen display test pattern; And record for controlling described industrial camera; And from described recording image, extract multiple picture frame for controlling, and control to adopt the average weighted method of many picture frames to obtain detecting display image screen effect; And control that further described detection display image screen effect and standard screen are shown image effect and contrast, and reach preset value when similarity and above time, judge that electronic equipment screen detection is qualified; Otherwise, judge that electronic equipment screen detects defective.
Compared to the embodiment one of device, embodiment adds and regulate the light source position adjustment structure of testing light source position, can optimal inspection time illumination condition.Illumination is provided by testing light source, after opening testing light source, is regulated the light position of testing light source, such as, heighten or turn down to optimum position by light source position adjustment structure, and then eliminates because screen autoluminescence to be measured causes the reflective impact on shooting effect of minute surface.
In the embodiment five of electronic equipment screen pick-up unit of the present invention, comprising:
Testing light source, it is for shining to electronic equipment screen projection light;
Industrial camera, it is recorded for the described test pattern play electronic equipment screen, obtains recording image;
Industrial camera position adjustment structure, it is for regulating the position of described industrial camera, is recording with electronic equipment screen for described industrial camera at a distance of the position of presetting shooting distance to the described test pattern that electronic equipment screen is play;
Embedded control panel and controller;
Described embedded control panel shines to electronic equipment screen projection light for controlling described testing light source;
Described controller is for controlling described embedded control panel; And control electronic equipment screen display test pattern; And record for controlling described industrial camera; And from described recording image, extract multiple picture frame for controlling, and control to adopt the average weighted method of many picture frames to obtain detecting display image screen effect; And control that further described detection display image screen effect and standard screen are shown image effect and contrast, and reach preset value when similarity and above time, judge that electronic equipment screen detection is qualified; Otherwise, judge that electronic equipment screen detects defective.
Compared to the embodiment one of device, embodiment adds the industrial camera position adjustment structure regulating the camera position recording test pattern, such as, heighten or turn down, make the shooting distance between industrial camera and screen to be measured reach best, optimize shooting effect.
In the embodiment six of electronic equipment screen pick-up unit of the present invention, comprising:
Testing light source, it is for shining to electronic equipment screen projection light;
Industrial camera, it is recorded for the described test pattern play electronic equipment screen, obtains recording image;
Electronic apparatus fixing structure, it is for placing and stationary electronic devices;
Embedded control panel and controller;
Described embedded control panel shines to electronic equipment screen projection light for controlling described testing light source;
Described controller is for controlling described embedded control panel; And control electronic equipment screen display test pattern; And record for controlling described industrial camera; And from described recording image, extract multiple picture frame for controlling, and control to adopt the average weighted method of many picture frames to obtain detecting display image screen effect; And control that further described detection display image screen effect and standard screen are shown image effect and contrast, and reach preset value when similarity and above time, judge that electronic equipment screen detection is qualified; Otherwise, judge that electronic equipment screen detects defective.
Compared to the embodiment one of device, embodiment adds the electronic apparatus fixing structure placing electronic equipment and stationary electronic devices, it can the position of stationary electronic devices, the screen skew avoiding the electronic equipment change in location when recording image to cause or shake, and then the image effect that impact is recorded.
In the embodiment seven of electronic equipment screen pick-up unit of the present invention, comprising:
Testing light source, it is for shining to electronic equipment screen projection light;
Industrial camera, it is recorded for the described test pattern play electronic equipment screen, obtains recording image;
Embedded control panel and controller;
Described embedded control panel shines to electronic equipment screen projection light for controlling described testing light source;
Described controller is for controlling described embedded control panel; And control electronic equipment screen display test pattern; And record for controlling described industrial camera; And from described recording image, extract multiple picture frame for controlling, and control to adopt the average weighted method of many picture frames to obtain detecting display image screen effect; And control that further described detection display image screen effect and standard screen are shown image effect and contrast, and reach preset value when similarity and above time, judge that electronic equipment screen detection is qualified; Otherwise, judge that electronic equipment screen detects defective;
Shielding case body, its for by described testing light source, described industrial camera, described control system integration in box house.
Compared to the embodiment one of device, embodiment adds shielding case body, relatively airtight and uniform lighting environment can be provided for test, for the stability of test provides guarantee.
In one of electronic equipment screen pick-up unit of the present invention comparatively complete embodiment, with reference to Fig. 4, Fig. 5, Fig. 6, electronic equipment screen pick-up unit comprises electronic equipment 101 to be measured; Electronic apparatus fixing structure 102; Screen cleaning structure 103; Industrial camera position adjustment structure 104; Light source position adjustment structure 105; Electronic device data interface 106 to be measured; Industrial camera 107; Testing light source 108; First X button 201; Release the button 202; Second X button 203; Shielding case body 301; Controller; Embedded control panel 501.In the concrete use procedure of the present embodiment, first, switch on power, open the power switch of shielding case body 301, press and release the button 202, shielding case body 301 is opened, and opens industrial camera 107 and testing light source 108, and reflective impact of LCD screen minute surface of the electronic equipment to be measured 101 (for mobile phone) photographed by industrial camera 107 by regulating light source position adjustment structure 105 and industrial camera position adjustment structure 104 is removed.Data line is inserted electronic device data interface 106 (USB interface) to be measured, press the first X button 201 and the second X button 203, shielding case body 301 closes simultaneously.Controller (PC) sends instruction allows electronic equipment 101 (mobile phone) to be measured show red successively, green, Lan Sanse and each stop 10 seconds (other times numerical value can be set in other embodiments), industrial camera 107 starts capture video, controller by data line industrial camera 107 is photographed 30 second video streaming to controller end, the software program operated on controller will extract for the 2nd second respectively, 4th second, 6th second, 8th second, 12nd second, 14th second, 16th second, 18th second, 22nd second, 24th second, 26th second, the video frame image in the 28th second (also can extract the picture frame in other moment in other embodiments), and use the average weighted method of many picture frames obtain three process after red, green, blueprint sheet histogram.Red, green, blue picture histogram that is last and Electronics Standards contrasts, similarity (also can be set to other numerical value in other embodiments more than 95%, such as 96% or 97% or 98% etc.) then to think that the screen (LCD screen) of this electronic equipment 101 (mobile phone) to be measured detects qualified, otherwise be judged as unacceptable product, by manually again differentiating.
Can before electronic equipment dispatches from the factory by the present invention, realize the automatic detection of screen on a production line, can avoid producer that a large amount of underproof electronic equipment is rendered to market like this, reduce disqualification rate and the repair rate of the product that dispatches from the factory, reduce the defective user caused of screen simultaneously and use trouble.Fundamentally can reduce manpower and the resources costs of manufacturer.
It should be noted that above-described embodiment all can independent assortment as required.The above is only the preferred embodiment of the present invention; it should be pointed out that for those skilled in the art, under the premise without departing from the principles of the invention; can also make some improvements and modifications, these improvements and modifications also should be considered as protection scope of the present invention.
Claims (10)
1. an electronic equipment screen detection method, is characterized in that, comprises the steps:
Shine to electronic equipment screen projection light;
Electronic equipment screen display test pattern;
The described test pattern that electronic equipment screen is play is recorded, obtains recording image;
From described recording image, extract multiple picture frame, and adopt the average weighted method of many picture frames to obtain detecting display image screen effect;
Described detection display image screen effect and standard screen are shown image effect contrast, when similarity reaches preset value and be above, judge that electronic equipment screen detects qualified; Otherwise, judge that electronic equipment screen detects defective.
2. electronic equipment screen detection method according to claim 1, is characterized in that:
Described play test pattern step by electronic equipment screen before also comprise:
Screen surface is cleaned.
3. electronic equipment screen detection method according to claim 1, is characterized in that:
The described step to electronic equipment screen projection light photograph comprises further: shining to electronic equipment screen projection light with the position of electronic equipment screen at a distance of predeterminable range;
And/or;
The step that the described described test pattern play electronic equipment screen is recorded comprises further: recording the described test pattern that electronic equipment screen is play at a distance of the position of presetting shooting distance with electronic equipment screen.
4. electronic equipment screen detection method according to claim 1, is characterized in that:
The step of described electronic equipment screen display test pattern comprises further: electronic equipment screen shows multiple solid-color image successively;
And/or;
Also comprise after the average weighted method of the many picture frames of described employing obtains the step of detection display image screen effect: extract the area-of-interest on screen; Describedly described detection display image screen effect and standard screen are shown the step that image effect carries out contrasting and comprise further: the detection display image screen effect of the described area-of-interest on screen and standard screen are shown image effect and contrasts.
5. electronic equipment screen detection method according to claim 1, is characterized in that:
Described detection display image screen effect is histogram;
Described standard screen display image effect is histogram.
6., according to the arbitrary described electronic equipment screen detection method of claim 1-5, it is characterized in that, in institute
State and judge that electronic equipment screen also comprises after detecting underproof step:
Whether defective further by manually carrying out detected electrons device screen.
7. an electronic equipment screen pick-up unit, is characterized in that, comprising:
Testing light source, it is for shining to electronic equipment screen projection light;
Industrial camera, it is recorded for the described test pattern play electronic equipment screen, obtains recording image;
Control system, it shines to electronic equipment screen projection light for controlling described testing light source; Control electronic equipment screen display test pattern; And record for controlling described industrial camera; And from described recording image, extract multiple picture frame for controlling, and control to adopt the average weighted method of many picture frames to obtain detecting display image screen effect; And control that further described detection display image screen effect and standard screen are shown image effect and contrast, and reach preset value when similarity and above time, judge that electronic equipment screen detection is qualified; Otherwise, judge that electronic equipment screen detects defective.
8. electronic equipment screen pick-up unit according to claim 7, is characterized in that, described control
System comprises further:
Embedded control panel and controller;
Described embedded control panel shines to electronic equipment screen projection light for controlling described testing light source;
Described controller is for controlling described embedded control panel; And control electronic equipment screen display test pattern; And record for controlling described industrial camera; And from described recording image, extract multiple picture frame for controlling, and control to adopt the average weighted method of many picture frames to obtain detecting display image screen effect; And control that further described detection display image screen effect and standard screen are shown image effect and contrast, and reach preset value when similarity and above time, judge that electronic equipment screen detection is qualified; Otherwise, judge that electronic equipment screen detects defective.
9. electronic equipment screen pick-up unit according to claim 8, is characterized in that, also comprise:
Screen cleaning structure, it is for cleaning screen surface;
And/or;
Light source position adjustment structure, it is for regulating the position of described testing light source, is shining with the position of electronic equipment screen at a distance of predeterminable range for described testing light source to electronic equipment screen projection light;
And/or;
Industrial camera position adjustment structure, it is for regulating the position of described industrial camera, is recording with electronic equipment screen for described industrial camera at a distance of the position of presetting shooting distance to the described test pattern that electronic equipment screen is play;
And/or;
Electronic apparatus fixing structure, it is for placing and stationary electronic devices.
10. the electronic equipment screen pick-up unit according to claim 7 or 8, is characterized in that, also comprise:
Shielding case body, its for by described testing light source, described industrial camera, described control system integration in box house.
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| CN201510809029.9A CN105424710A (en) | 2015-11-20 | 2015-11-20 | Method and device for detecting screen of electronic equipment |
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