CN106556607B - Identify the device and method of panel surface dust - Google Patents

Identify the device and method of panel surface dust Download PDF

Info

Publication number
CN106556607B
CN106556607B CN201510633270.0A CN201510633270A CN106556607B CN 106556607 B CN106556607 B CN 106556607B CN 201510633270 A CN201510633270 A CN 201510633270A CN 106556607 B CN106556607 B CN 106556607B
Authority
CN
China
Prior art keywords
laser
panel
hot spot
polarizing film
transparent
Prior art date
Application number
CN201510633270.0A
Other languages
Chinese (zh)
Other versions
CN106556607A (en
Inventor
徐齐钱
张彩梅
彭琪
何祥飞
单庆增
Original Assignee
苍南县三维电子塑胶有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 苍南县三维电子塑胶有限公司 filed Critical 苍南县三维电子塑胶有限公司
Priority to CN201510633270.0A priority Critical patent/CN106556607B/en
Publication of CN106556607A publication Critical patent/CN106556607A/en
Application granted granted Critical
Publication of CN106556607B publication Critical patent/CN106556607B/en

Links

Abstract

The invention discloses a kind of devices for identifying panel surface dust, including bracket, hot spot display station is arranged in bracket side, polarizing film and transparent material plate is arranged in parallel above hot spot display station, the edge of polarizing film and transparent material plate and hot spot display station is respectively provided with detection sensor, halogen lamp or light emitting diode and light-blocking mechanical structure, the routine inspection to form halogen lamp region, for panel surface dust is arranged in cradle top;Space between polarizing film and cellotone sheet and hot spot display station forms laser region, and laser light source is arranged in upper corner, is used to form the laser region of surface dirt identification.The invention also discloses the methods of identification panel surface dust.Compared with prior art, the present invention only visually inspects in two regions, it is completed within the time less than 5s, greatly improve efficiency, simultaneously, the present invention has done deep thinking design from the angle of user and energy-saving angle, the energy-saving effect with comfortable manipulation experience and 50% or more.

Description

Identify the device and method of panel surface dust
Technical field
The invention belongs to display panel detection technique fields, specifically, the present invention relates to a kind of panel surface ashes The identification device of dirt and recognition methods.
Background technique
Existing small-medium size display module includes liquid crystal LCD, OLED etc., and manufacturing process is complex, wherein transporting It is a basic sport technique segment, but as the requirement of ultra-thin, Touch touch etc. is higher and higher, existing conveying technology, More and more expose following problem: when being transported using sucker mode, clast etc. of sucker attachment often by surface scratching, The pressure of sucker can also destroy pixel display area support construction, bad so as to cause showing.When using crawler type or roller type When conveying, also can regular scratch surface, cause breakage etc..In addition, when display module from 1T be thinned to 0.4T or it is thinner when, These situations also will further deteriorate.
Therefore, detection is very important before carrying out display panel modularity engineering, before factory.The prior art is being examined Survey process dips in acetone alcohol using non-dust cloth or IPA is wiped, and to identify whether being dust and real defect, the general speed that detects exists 15s~30s in order to reduce actuation time, while will also carry out the investment of cleaning equipment, lead to higher cost.In addition, above-mentioned inspection Survey generallys use human eye detection, and False Rate is also high.There are also external machine vision special equipments, but technically not at It is ripe, the poor universality, particularly accuracy rate, low efficiency of detection are shown as, basic reason is not break through conducive to defect inspection Key technique out, especially either human eye detection still uses the machine vision such as linear array, area array cameras, linear array laser 3D System all keeps away the identification technology problem of not cleaved surface dust and real defect.
Summary of the invention
In consideration of it, the purpose of the present invention is to provide a kind of device for identifying panel surface dust, which passes through Human eye halogen lamp detection zone and human eye laser detection zone is arranged to realize the identification of dust and surface defect in layering.
Another object of the present invention is to provide a kind of sides for being easy to identify panel surface dust by optical instrument Method, this method is simple and easy, can quickly and easily realize the identification of dust and surface defect.
Technical scheme is as follows:
The device for identifying panel surface dust, including the bracket with pedestal, the setting of bracket side is to be checked for carrying The hot spot display station of display panel is surveyed, polarizing film and transparent material plate are arranged in parallel above hot spot display station, polarizing film setting exists In glass pane surface, the edge of polarizing film and transparent material plate is also provided with the detection sensor for detecting measured object, branch Halogen lamp or light emitting diode and light-blocking mechanical structure is arranged in top of the trellis, to form halogen lamp with polarizing film and transparent material plate Region or light emitting diode matrix region, the routine inspection for panel surface dust;Polarizing film and cellotone sheet one It plays the space between hot spot display station and forms laser region, laser light source, hot spot display station is arranged in upper corner Edge be arranged detection sensor, with the identification for surface dirt.
Wherein, in halogen lamp region or LED area, the edge of polarizing film and transparent material plate is also provided with Detection sensor, for detecting the presence or absence of measured object, when measured object appears in the region, detection sensor output signal is sent to Light source controller opens illumination after controller judgement;Conversely, closing halogen lamp illumination.
Wherein, in laser region, when measured object appears in the region, detection sensor output signal is sent to light source control Device processed opens laser illumination after controller judgement;Conversely, closing laser illumination.
Wherein, the angle of light-blocking mechanical structure is adjusted according to the height of user and comfort level, halogen lamp is made to show up It is irradiated downwards with 30 degree of -80 degree, does not make light direct projection human eye.
Further, the transparent material plate is high-definition glass or transparent acrylic.
Further, laser light source is laser diode or diode laser matrix, and RGB is preferably red.
Further, hot spot face display station is the supporting surface of metal material or acrylic material or other materials.
Wherein, polarizing film and transparent material plate are at the surface of hot spot face display station, distance 10-30cm, so that light source Decaying, human eye observe panel surface by it.
Using the method for above-mentioned apparatus identification panel surface dust, include the following steps:
1) display panel to be detected is placed in halogen lamp region or LED area, be now placed in polarizing film and thoroughly The detector at bright plate of material edge detects being put into for detectable substance or manpower, and controller opens light source illumination, it is visual to carry out human eye Observation, when finding panel surface without any unknown object, product testing result is normal, takes out and carries out next;When discovery panel When there is unknown object on surface, display panel is moved into laser region;
2) display panel to be detected is placed in the laser region above hot spot display station, to the same area of display panel Domain is confirmed, through the human eye detection baffle that polarizing film and transparent material plate are constituted, if finding this unknown object in hot spot meaning In range, shows extremely to become clear, then regard as surface dirt, conversely, regarding as real defect.
Wherein, 1.5 to 3 times extremely to become clear for brightness at least more than hot spot.
Wherein, halogen light source or diode matrix lamp brightness are 1000nit to 15000nit, preferably 5000nit.Swash Light device light source is diode laser matrix, and array size range is depending on tested display panel size.
Wherein, real defect is that concave point, scuffing or surface oily are dirty.
The device of identification panel surface dust of the invention and recognition methods have the advantages that and use this Signified laser lighting identification technology and device are invented, can be realized the identification of dust and real defect, is used for eye recognition or machine Device visual identity.The prior art is dipped in acetone alcohol or IPA using non-dust cloth in detection process and is wiped, with identify whether be dust and Real defect, the general speed that detects is in 15s~30s, in order to reduce actuation time, the general throwing that also carry out cleaning equipment simultaneously Enter.And technology of the invention is used, and only visually inspected in two regions, it is complete within the time less than 5s after general skilled At greatly improving efficiency.Meanwhile the present invention has done deep thinking from the angle of user and energy-saving angle and has set Meter, the energy-saving effect with comfortable manipulation experience and 50% or more.
Detailed description of the invention
Fig. 1 is the panel surface state diagram of eye-observation or area array cameras shooting in common halogen lamp illumination, In, visually display that panel surface defect and dust cannot be distinguished under halogen light source;
Fig. 2 is the apparatus structure schematic diagram of identification panel surface dust of the invention, wherein branch of the 1- with pedestal Frame;2- hot spot display station;3- glass plate;4- polarizing film;5- halogen lamp or light emitting diode (or light emitting diode matrix) light source; 6- laser diode (or diode laser matrix) light source;7- detection sensor;8- detection sensor;9- light source baffle;
Fig. 3 is panel surface defect and dust and its corresponding A-A ' sectional view;
Wherein, 31 be surface defect;32 be surface dirt.
Fig. 4 is the schematic diagram that dust and surface defect are identified using identification panel surface ash dust collecting method of the invention, Wherein, 6- laser diode arrays;11- diode laser matrix light source hot spot.
Specific embodiment
The device of identification panel surface dust of the invention is further described with reference to the accompanying drawing, the explanation It is only exemplary, it is no intended to limit the scope of the invention.
Fig. 1 is to illuminate the panel surface state diagram of eye-observation or area array cameras shooting in common halogen lamp, by scheming As it can be seen that being flooded with a large amount of dust in environment, and determine from display panel grade, simply by the presence of one, that is, is identified as not Qualified products.And if all these " defects " are dust capable of washing, with regard to will appear the problem of killing, i.e., good product quilt It is judged as defective product, brings massive losses to enterprise, for this purpose, effectively identification surface defect and dust is very important detection Content.
The structural schematic diagram of the device of identification panel surface dust of the invention, the dress are shown referring to Fig. 2, Fig. 2 It sets including the bracket 1 with pedestal, the setting of 1 side of bracket for laser hot spot display station 2, the hot spot display station of acrylic material At 2 top 20cm, polarizing film 4 and glass plate (high-definition glass plate) 3 is arranged in parallel, surface on the glass sheets 3 is arranged in polarizing film 4 On, halogen lamp 5 is set at the top of bracket 1 with the routine inspection for panel surface dust, between bracket 1 and glass plate 3 Laser diode (diode laser matrix) 6 is arranged with the identification for surface dirt in space above corner.Polarizing film 4 and glass Glass plate (high-definition glass plate) 3 is with respect to detection sensor 7 is provided on an end margin of bracket, if being put into display panel to be detected When, it is opened by the illumination that the controller that detection sensor 7 is electrically connected controls 5 light source of halogen lamp;With a halogen lamp 100W function Rate calculates, and 50% or more power consumption can be reduced using this structure, reaches energy-efficient purpose.The side setting light source of halogen lamp 5 is kept off Plate 9, for the light direct beam human eye (human eye can also be replaced with industrial camera) of stop portions halogen lamp 5, the angle of the light source baffle 9 Degree, according to the height of user, comfort level is adjusted.Detection sensor 8 is equally arranged in the edge of hot spot display station 2, uses Detect the movement that is put into of measured object, detection sensor 8 is equally controlled by the controller of electrical connection, when measured object appearance At laser region, 8 output signal of detection sensor is sent to light source controller and opens laser diode 6 after controller judgement Illumination;It is illuminated conversely, closing laser diode 6.
In another specific embodiment, hot spot display station 2 is made of metal material, and laser diode is by two pole of laser Pipe array replaces, and the supporting surface surface coating of hot spot display station is white, or alternatively, hot spot face display station is metal material The frame of matter or acrylic material or other materials, top are covered with the thing of the fiber that surface is white or cloth class as its table Face, main purpose are that, when laser light source irradiation, human eye is observed that a hot spot on its surface, and measured object is placed In spot area.
In a specific embodiment, 5x5 array is can be used in laser diode, is generated length and width in hot spot face display station and is The hot spot of 10cm or so.Laser diode has feux rouges (650-660nm, 635nm), green light (515-520nm, 532nm), blue light (445-450nm) and blue violet light (405nm) etc., can be used for testing panel surface, it is preferable that laser diode is Red laser diode.
Firstly, the identification that can carry out dust and surface defect in the device of the invention is tested, the present invention is using hand-held Formula laser pen irradiates display panel normal region, defect area, dust area respectively, and only dust is shown as extremely Bright reflection, effect diagram are as shown in Figure 3.Wherein, surface defect 31 and surface dirt 32 are located at detection display On the surface of panel.
Characterization processes proposed by the present invention are as follows: firstly, display panel is placed in halogen lamp working region, detected, When finding that panel surface has unknown object, panel is moved into laser work zone, the same area is confirmed, this is unknown if finding Object is to show extremely to become clear, i.e., visual brightness then regards as table at least more than 1.5 to 3 times of hot spot in hot spot signified scope Face dust, rather than the real defect of display panel.Conversely, regarding as real defect, i.e., concave point, scuffing or surface oily are dirty Deng.
Using the method for above-mentioned apparatus identification panel surface dust, include the following steps:
1) display panel to be detected is placed in halogen light source working region, is now placed in polarizing film and transparent material plate The detector 7 at edge detects being put into for detectable substance or manpower, and controller is opened halogen lamp 5 and illuminated, and carries out human eye and visually observes, When finding panel surface without any unknown object, product testing result is normal, takes out and carries out next.When discovery panel surface has When unknown object, display panel is moved into laser work zone;
2) display panel to be detected is placed in laser light source workspace, the detector 8 of 2 one side edge of hot spot display station Detect being put into for detectable substance or manpower, controller is opened diode laser matrix light source 6 and illuminated, and carries out to the same area true Recognize, is observed through the human eye detection baffle for thering is glass plate 3 and polarizing film 4 to constitute, if finding this unknown object in hot spot signified scope It is interior, it shows extremely to become clear, then regards as surface dirt, conversely, regarding as real defect.It is to utilize this for example, see Fig. 4, Fig. 4 The schematic diagram of identification panel surface ash dust collecting method the identification dust and surface defect of invention, in diode laser matrix light source It under 6 illuminations, is observed by the brightness of unknown object in the diode laser matrix light source hot spot to formation, is lacked to identify surface Sunken and dust.
The present invention simultaneously it is also proposed that, future scans panel surface, or the following planar laser irradiation using linear array laser Entire panel surface and the Machine Vision Detection method taken pictures using industrial camera, if existing in discovery image extremely bright The unknown object of (1.5 to 3 times of visual brightness at least more than hot spot), is aided with other light sources Comprehensive affirming, regards as surface dirt, The real defect of non-panel.Conversely, regard as real defect, i.e., concave point, scuffing or surface oily are dirty etc..All uses are similar What principle carried out, be after being illustrated with reference to the technology of the present invention, what technical staff was readily conceivable that, belong to rights protection scope of the present invention.
Although the detailed description and description of the specific embodiments of the present invention are given above, it should be noted that We can carry out various equivalent changes and modification to above embodiment according to the concept of the present invention, and generated function is made It, should all be within protection scope of the present invention when with the spirit still covered without departing from specification and attached drawing.

Claims (11)

1. identifying the device of panel surface dust, including the bracket with pedestal, the setting of bracket side is to be detected for carrying Polarizing film and transparent material plate is arranged in parallel in the hot spot display station of display panel, hot spot display station top, and polarizing film is arranged in glass On glass plate surface, the edge of polarizing film and transparent material plate is also provided with the detection sensor for detecting measured object, bracket Halogen lamp or light emitting diode and light-blocking mechanical structure is arranged in top, to form halogen lamp area with polarizing film and transparent material plate Domain or light emitting diode matrix region, the routine inspection for panel surface dust;Polarizing film and transparent material plate are together Space between hot spot display station forms laser region, and laser light source is arranged in upper corner, hot spot display station Detection sensor is arranged in edge, with the identification for surface dirt;Wherein, polarizing film and transparent material plate are in hot spot display station Surface, at distance 10-30cm, so that light source is decayed, human eye observes panel surface by it.
2. device as described in claim 1, wherein in halogen lamp region or LED area, polarizing film and transparent material The edge of flitch is also provided with detection sensor, for detecting the presence or absence of measured object, when measured object appears in the region, visits It surveys sensor output signal and is sent to light source controller, after controller judgement, unlatching illumination;Conversely, closing halogen lamp or luminous two Pole pipe illumination.
3. device as described in claim 1, wherein in laser region, when measured object appears in the region, detection sensing Device output signal is sent to light source controller and opens laser illumination after controller judgement;Conversely, closing laser illumination.
4. device as described in any one of claims 1-3, wherein the angle of light-blocking mechanical structure, according to the height of user And comfort level is adjusted, and so that halogen lamp is shown up and is irradiated downwards with 30 degree of -80 degree, does not make light direct projection human eye.
5. device as described in any one of claims 1-3, wherein the transparent material plate is high-definition glass or transparent acrylic Plate.
6. device as described in any one of claims 1-3, wherein laser light source is laser diode or laser diode battle array Column, laser color are red green or blue.
7. device as described in any one of claims 1-3, wherein hot spot face display station is metal material or acrylic material.
8. being included the following steps: using the method for any one of claim 1-7 described device identification panel surface dust
1) display panel to be detected is placed in halogen lamp region or LED area, is now placed in polarizing film and transparent material The detector at flitch edge detects being put into for detectable substance or manpower, and controller opens light source illumination, carries out human eye and visually observes, When finding panel surface without any unknown object, product testing result is normal, takes out and carries out next;When discovery panel surface has When unknown object, display panel is moved into laser region;
2) display panel to be detected is placed in the laser region above hot spot display station, to the same area of display panel into Row confirmation, through the human eye detection baffle that polarizing film and transparent material plate are constituted, if finding this unknown object in hot spot signified scope It is interior, it shows extremely to become clear, then regards as surface dirt, conversely, regarding as real defect.
9. method according to claim 8, wherein 1.5 to 3 times extremely to become clear for brightness at least more than hot spot.
10. method according to claim 8, wherein halogen light source or diode matrix lamp brightness be 1000nit extremely 15000nit;Laser light source is diode laser matrix, and array size range is depending on tested display panel size.
11. method according to claim 8, wherein real defect is that concave point, scuffing or surface oily are dirty.
CN201510633270.0A 2015-09-30 2015-09-30 Identify the device and method of panel surface dust CN106556607B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201510633270.0A CN106556607B (en) 2015-09-30 2015-09-30 Identify the device and method of panel surface dust

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201510633270.0A CN106556607B (en) 2015-09-30 2015-09-30 Identify the device and method of panel surface dust

Publications (2)

Publication Number Publication Date
CN106556607A CN106556607A (en) 2017-04-05
CN106556607B true CN106556607B (en) 2019-10-08

Family

ID=58414654

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201510633270.0A CN106556607B (en) 2015-09-30 2015-09-30 Identify the device and method of panel surface dust

Country Status (1)

Country Link
CN (1) CN106556607B (en)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107219229B (en) * 2017-05-16 2020-07-03 武汉精测电子集团股份有限公司 Panel dust filtering method and device
CN107390393B (en) * 2017-07-24 2020-09-22 惠州高视科技有限公司 Re-judgment layering method after defect detection of liquid crystal module
CN107884414B (en) * 2017-11-03 2019-12-27 电子科技大学 System and method for detecting surface defects of mirror surface object by eliminating influence of dust
CN108174098A (en) * 2017-12-29 2018-06-15 武汉大学 A kind of dust detection and method
CN108961185A (en) * 2018-06-29 2018-12-07 凌云光技术集团有限责任公司 The method and device of removal dust interference in a kind of Demura detection

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4794452A (en) * 1986-07-31 1988-12-27 Westinghouse Electric Corp. Through flame optical viewing
JP3188250B2 (en) * 1999-05-31 2001-07-16 オリンパス光学工業株式会社 Visual observation device and visual / microscope observation device using it
CN100476518C (en) * 2006-03-16 2009-04-08 奥林巴斯株式会社 Appearance checking device
CN102037348A (en) * 2008-05-22 2011-04-27 独立行政法人产业技术综合研究所 Method for inspecting defects, and defect inspecting apparatus
CN102661955A (en) * 2012-04-25 2012-09-12 北京先驱威锋技术开发公司 Detection system of visible foreign matters
CN103245678A (en) * 2013-04-26 2013-08-14 深圳市华星光电技术有限公司 Foreign matter detection device
CN103439812A (en) * 2013-08-26 2013-12-11 成都中光电科技有限公司 Liquid crystal glass substrate 45-degree inspection method
CN103940832A (en) * 2013-01-17 2014-07-23 北京兆维电子(集团)有限责任公司 Lighting device for automatic optical detection on flat display screen

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4794452A (en) * 1986-07-31 1988-12-27 Westinghouse Electric Corp. Through flame optical viewing
JP3188250B2 (en) * 1999-05-31 2001-07-16 オリンパス光学工業株式会社 Visual observation device and visual / microscope observation device using it
CN100476518C (en) * 2006-03-16 2009-04-08 奥林巴斯株式会社 Appearance checking device
CN102037348A (en) * 2008-05-22 2011-04-27 独立行政法人产业技术综合研究所 Method for inspecting defects, and defect inspecting apparatus
CN102661955A (en) * 2012-04-25 2012-09-12 北京先驱威锋技术开发公司 Detection system of visible foreign matters
CN103940832A (en) * 2013-01-17 2014-07-23 北京兆维电子(集团)有限责任公司 Lighting device for automatic optical detection on flat display screen
CN103245678A (en) * 2013-04-26 2013-08-14 深圳市华星光电技术有限公司 Foreign matter detection device
CN103439812A (en) * 2013-08-26 2013-12-11 成都中光电科技有限公司 Liquid crystal glass substrate 45-degree inspection method

Also Published As

Publication number Publication date
CN106556607A (en) 2017-04-05

Similar Documents

Publication Publication Date Title
JP4132046B2 (en) Device for inspecting defects of sheet-like transparent body
CN101639452B (en) 3D detection method for rail surface defects
CN104101608B (en) Intelligent detecting device for detecting defects of multi-type irregularly shaped product
US9025246B2 (en) Observation system and method of controlling observation system
EP1995553A1 (en) System and method for identifying a feature of a workpiece
JP6134422B2 (en) Stem cell observation method and stem cell observation apparatus
CN102636495B (en) All-round automatic detection device for surface defects of workpieces
US9060684B2 (en) Observation device, observation program, and observation system
CN203209331U (en) Roller side defect detection system
TWI333544B (en) Substrate inspection apparatus
CN101008622B (en) System and method for inspecting patterned devices having microscopic conductors
JP5145487B2 (en) Observation program and observation apparatus
CN203124215U (en) Frame sealant coating machine
CN103706575B (en) A kind of online classification sorting equipment of eyeglass based on two-stage image collection and method
CN105242423B (en) The detection of TFT-LCD coloured silk film glass substrates and restorative procedure and its system
CN103175847B (en) Grating surface defect detecting device
CN203405419U (en) Device for detecting defects of surfaces of workpieces
EP2256212B1 (en) Living cell judging method for cell observation, image processing program for cell observation, and image processing device
CN201489795U (en) Display flaw automatic detecting device
CN101750422A (en) On-line automatic detection device for glass defect
CN101666923B (en) Processing method, processing system and maintenance equipment for defects of liquid crystal display panel
CN102305793A (en) Method and equipment for detecting appearance quality of product
CN101718714B (en) System and method for detecting surface defects of flat glass
KR101721965B1 (en) Device and method for inspecting appearance of transparent substrate
CN103645573A (en) Liquid crystal display (LCD) detection method and system based on machine vision

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant