CN205157919U - Automatic optical detector - Google Patents

Automatic optical detector Download PDF

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Publication number
CN205157919U
CN205157919U CN201520934042.2U CN201520934042U CN205157919U CN 205157919 U CN205157919 U CN 205157919U CN 201520934042 U CN201520934042 U CN 201520934042U CN 205157919 U CN205157919 U CN 205157919U
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China
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module
detection
sidelight
thing
platform
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CN201520934042.2U
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Chinese (zh)
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伍毫剑
江鹤飞
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Lingju Sci & Tech Co Ltd
Giantplus Technology Co Ltd
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Lingju Sci & Tech Co Ltd
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Abstract

The utility model relates to an automatic optical detector, it contains testing platform and is located the image sensor below, testing platform has fretwork portion, image sensor corresponds fretwork portion, backlight module is located the testing platform below, and corresponding to fretwork portion, backlight module is born to the lift platform module, low angle sidelight module setting is under testing platform, and lie in one side of lift platform module, low angle sidelight module is corresponding to fretwork portion, high angle sidelight module setting is on testing platform, and corresponding to the top of hanging down angle sidelight module, automatic control module respectively with image sensor, testing platform, backlight module, the lift platform module, low angle sidelight module and high angle sidelight module electric connection, wherein automatic control module utilizes low angle sidelight module and high angle sidelight module to carry out optical detection, can reduce the interference of granule such as pollutant or dust to detecting in the environment.

Description

Automatic optical detection device
Technical field
The utility model relates to a kind of optical detection apparatus, is espespecially directed to automatic optical detection device.
Background technology
Along with the development of science and technology, to live more and more progress, add the arrival of digital times, promote high-tech industry flourish, have about liquid crystal display (LiquidCrystalDisplay, LCD) industry size and the world large inter-plant cut-throat competition expanding day of aspect, liquid crystal indicator because have that high image quality, volume are little, lightweight, the many merits such as low driving voltage and low consumpting power.Therefore, be widely used in personal digital assistant (PDA), mobile phone, shoot with video-corder on the consumer communications such as projector, notebook computers, desktop displays, vehicle display and projection TV or electronic product, and become the main flow of display.
Generally speaking, have that the assembly about liquid crystal indicator includes light emitting source (LightSource) usually, light guide plate (LightGuidePlate), reflecting element (Reflector), display panels (LCDPanel) formed.Display panels can not be luminous, and backlight module can provide sufficient brightness and the light source be evenly distributed, and provides light source to display panels, and form liquid crystal indicator through backlight module, makes the normal show image of display panels energy.For liquid crystal indicator, wherein again with one of important document that display panels is wherein indispensable, so when display panels is after manufacture completes, in order to ensure being supplied to the reliable product of user, and avoid needing in follow-up manufacture or after completing again placing under repair to display panels or the behavior such as adjustment, and cause unnecessary maintenance or waste, usually after having manufactured display panels, all need the complete detection that tries again, the content detected then has testing electrical property about display panels or defect inherently, as stain, white point, concealed wire or bright line etc.
In the middle of known techniques, usual employing backlight module carries out polishing for display panels, again with eye recognition product defects, in actual testing process, the light-source brightness existed due to testing environment is poor, even results is bad, problem that adjustable range is little etc., have a strong impact on visual perception for the fineness on Product checking, moreover, also likely because human eye is overtired, and cause detect and incomplete, also or in detection display panels while, due to the impact of dust in environment, and be piled up on display panels, how dust and foreign matter are effectively distinguished, also one of difficult problem relating to detection system, in addition, known utilized automatic optics inspection (automatedopticalinspection, AOI) testing process is comparatively numerous and diverse, make the known efficiency utilizing pick-up unit to detect operation not good.
In view of this, be directed to the shortcoming in known techniques, utility model people develops a kind of automatic optical detection device further, except can the interference of filtering environmental dust, increase the recall rate of automatic optics inspection defect and reduced inspection rate, also main frame can be utilized to operate automated optical detection equipment, promote and detect operating efficiency.
Utility model content
The interference of enough filtering environmental dusts, increases robotization optical detection apparatus and detects the recall rate of defect and reduced inspection rate.
The purpose of this utility model, is to provide a kind of automatic optical detection device, utilizes robotization and not numerous and diverse testing process, improves and detects operating efficiency.
For reaching above-mentioned censured object and effect, the utility model is a kind of automatic optical detection device, it comprises an image sensor, a detection platform, a backlight module, a hoistable platform module, one low angle sidelight module, a high angle sidelight module and an automatic control module, this detection platform is positioned at below this image sensor, this detection platform has a hollow-out parts, and this image sensor is to should hollow-out parts, this backlight module is positioned at below this detection platform, and corresponds to this hollow-out parts, this hoistable platform module carries this backlight module, and this low angle sidelight module installation under this detection platform, and is positioned at the side of this hoistable platform module, and this low angle sidelight module corresponds to this hollow-out parts, this high angle sidelight module installation on this detection platform, and corresponds to the top of this low angle sidelight module, and this automatic control module is electrically connected with this image sensor, this detection platform, this backlight module, this hoistable platform module, this low angle sidelight module and this high angle sidelight module respectively, wherein, detect thing by one and be placed in this detection platform, and correspond to this hollow-out parts, this backlight module coincides in this detection thing, starting this automatic control module makes this detection thing of this detection platform electrically conduct, light this backlight module and irradiate this detection thing, this image sensor captures the image of this detection thing, close this backlight module, light this this detection thing of high angle sidelight module radiates, this image sensor captures the image of this detection thing, close this high angle sidelight module, fall this hoistable platform module and this backlight module, light this low angle sidelight module, and through this detection thing of direct irradiation, this image sensor captures the image of this detection thing.
An embodiment of the present utility model, be that exposure arranges a fixed mount, this fixed mount is arranged at the side of this hollow-out parts, and for fixing this detection thing.
An embodiment of the present utility model, be that exposure arranges one first holder and one second holder, this first holder is arranged in this detection platform, under this second holder is arranged at this detection platform, this this first holder of high angle sidelight module pivot joint, this this second holder of low angle sidelight module pivot joint.
An embodiment of the present utility model, is to disclose this low angle sidelight module and this high angle sidelight module all has at least one blue LED chip.
An embodiment of the present utility model, be that disclosing at least one blue LED chip sends a blue light, the wavelength of this blue light is between 380nm ~ 460nm.
An embodiment of the present utility model, be to be exposed in and detect one before thing is placed in this detection platform, light this backlight module, this image detector captures the image of this backlight module.
An embodiment of the present utility model, before being to be exposed in the energising of this detection thing, this backlight module irradiates this detection thing, and this image sensor captures the image of this detection thing.
An embodiment of the present utility model, is that disclosing this image sensor is photosensitive coupling component.
An embodiment of the present utility model, is that disclosing this detection thing is a display panels, a colored filter of this this display panels of high angle sidelight module radiates, a thin film transistor (TFT) of this this display panels of low angle sidelight module radiates.
Accompanying drawing explanation
Fig. 1: it is the stereographic map of automatic optical detection device of the present utility model;
Fig. 2: it is the electric connection figure of automatic optical detection device of the present utility model;
Fig. 3: it is the detection schematic diagram one of automatic optical detection device of the present utility model;
Fig. 4: it is the detection schematic diagram two of automatic optical detection device of the present utility model;
Fig. 5: it is the detection schematic diagram three of automatic optical detection device of the present utility model;
Fig. 6: it is the detection schematic diagram four of automatic optical detection device of the present utility model; And
Fig. 7: it is the detection schematic diagram five of automatic optical detection device of the present utility model.
[figure number is to as directed]
1 automatic optical detection device
11 image sensors
12 detection platform
1211 first holders
1212 second holders
122 fixed mounts
123 hollow-out parts
13 backlight modules
14 low angle sidelight modules
15 hoistable platform modules
16 high angle sidelight modules
17 automatic control modules
2 detect thing (display panels)
21 colored filters
22 thin film transistor (TFT)s
Embodiment
In order to make architectural feature of the present utility model and effect of reaching have a better understanding and awareness, spy's preferred embodiment and coordinate detailed description, is described as follows:
The utility model is improved for the technology of known automatic optics inspection, automatic optics inspection (automatedopticalinspection, AOI) be high-speed, high precision optical image detection system, use machine vision as examination criteria technology, optical instrument is used to carry out the shortcoming detected with manpower traditionally as improvement, but known automatic optics inspection cannot avoid dust for the interference detected, and cause undetected increase and cross examining situation about increasing, or in order to avoid dust Interference Detection, promote the dustless grade of environment, although can above-mentioned situation be improved, but add production cost on the contrary, in addition, the detection action of known utilized automatic optical detection device is too numerous and diverse, reduce it on the contrary and detect operating efficiency, the utility model is improved for above-mentioned situation, and a kind of automatic optical detection device is provided.
Refer to Fig. 1 and Fig. 2, its be automatic optical detection device of the present utility model stereographic map be electrically connected scheme; As shown in the figure, the present embodiment relates to a kind of automatic optical detection device 1, and it comprises image sensor 11, detection platform 12, backlight module 13, hoistable platform module 15, low angle sidelight module 14, high angle sidelight module 16 and an automatic control module 17.
From the above, this detection platform 12 is positioned at below this image sensor 11, and this detection platform 12 has a hollow-out parts 123, and this image sensor 11 is to should hollow-out parts 123; This backlight module 13 is positioned at below this detection platform 12, and corresponds to this hollow-out parts 123; This hoistable platform module 15 carries this backlight module 13, and this low angle sidelight module 14 is arranged under this detection platform 12, and is positioned at the side of this hoistable platform module 15, and this low angle sidelight module 14 corresponds to this hollow-out parts 123; This high angle sidelight module 16 is arranged on this detection platform 12, and corresponds to the top of this low angle sidelight module 14; And this automatic control module 17 is electrically connected with this image sensor 11, this detection platform 12, this backlight module 13, this hoistable platform module 15, this low angle sidelight module 14 and this high angle sidelight module 16 respectively, wherein this image sensor 11 is photosensitive coupling component.This low angle sidelight module 14 is positioned at below this detection platform 12, and by the side irradiating and detecting thing 2 upward relative to this hollow-out parts 123 (namely detecting thing 2 placement location) lower position, this high angle sidelight module 16 is positioned at above this detection platform 12, and by the side irradiating and detecting thing 2 downward relative to this hollow-out parts 123 (namely detecting thing 2 placement location) higher position, though only this high angle sidelight module 16 correspondence is arranged at the top of this low angle sidelight module 14, but be not limited to the same side being arranged at this hoistable platform module 15 with this low angle sidelight module 14.
Moreover, the present embodiment is provided with a fixed mount 122 further, this fixed mount 122 is arranged at the side of this hollow-out parts 123, and for fixing a detection thing 2, make this detection thing 2 can be fixed on this hollow-out parts 123, wherein this fixed mount 122 has various ways to can be used for fixing this detection thing 2, such as clamping or supporting way, and the utility model does not limit above-mentioned fixed form.
In addition, the light source that the illumination optical of the present embodiment detects mainly comes from this backlight module 13, this low angle sidelight module 14 and this high angle sidelight module 16, this backlight module 13 is arranged at the top of this hoistable platform module 15, elevating control is carried out by this hoistable platform module 15, make backlight module 13 can supply light source to this detection thing 2, one first holder 1211 and one second holder 1212 is set further, this first holder 1211 is arranged at this detection platform 12 upper surface, and be positioned at the side of this hollow-out parts 123, this second holder 1212 is arranged at this detection platform 12 lower surface, and be positioned at the side of this hollow-out parts 123, this this first holder 1211 of high angle sidelight module 16 pivot joint, this this second holder 1212 of low angle sidelight module 14 pivot joint, this high angle sidelight module 16 pivotable can adjust angle on this first holder 1211, this high angle sidelight module 16 is made to maintain an inclination angle, wherein this inclination angle is the direction being adjusted to the former direction of illumination (horizontal direction) of this high angle sidelight module 16 relative to this hollow-out parts 123 (this detection thing 2 putting position) downwards, and the radiation source of this high angle sidelight module 16 can correspond to this detection thing 2, and this low angle sidelight module 14 pivotable can adjust angle on this second holder 1212, this low angle sidelight module 14 is made to maintain an inclination angle, wherein this inclination angle is the former direction of illumination (horizontal direction) of this low angle sidelight module 14 is adjusted upward the direction to relative to this hollow-out parts 123 (this detection thing 2 putting position), and the radiation source of this low angle sidelight module 14 can correspond to this detection thing 2, wherein have, about this low angle sidelight module 14 and this high angle sidelight module 16, all there is at least one blue LED chip, and this at least one blue LED chip sends a blue light, the wavelength of this blue light is between 380nm ~ 460nm.
See also Fig. 3 to Fig. 7, it is that the detection schematic diagram one of automatic optical detection device of the present utility model is to detecting schematic diagram five, as shown in the figure, the present embodiment will sequentially carry out the explanation of detecting step from Fig. 3 to Fig. 7, Fig. 3 of the present embodiment illustrates the board state of this automatic optical detection device 1 before not yet detecting, moreover, the present embodiment utilizes this automatic control module 17 respectively for this image sensor 11, this detection platform 12, this backlight module 13, this hoistable platform module 15, this low angle sidelight module 14 and this high angle sidelight module 16 control, whole process operates with automatic control mode, below illustrate and just repeat no more this point, in addition, there is the standard video of comparing about this image detector 11, it can adopt the imaging results previously utilizing this detection thing 2 good to detect, facilitate the use the comparison that this result carries out each detection imaging results following.
Fig. 4 of the present embodiment illustrates that this automatic optical detection device 1 first carries out basic board test before detecting, first this hoistable platform module 15 is risen, make the elevated height of this backlight module 13 in this hollow-out parts 123, and light this backlight module 13, the image of this backlight module 13 is captured again through this image detector 11, there is free from dust on the surface that this step detects this backlight module 13, defect or any meeting have influence on the problem of this backlight module 13 luminescence, after first detecting through this image detector 11, the problem that impact detects can be removed in advance, with guarantee follow-up trace routine be in the normal state of board under detect, also or remember the position that this backlight module 13 surface above-mentioned can affect detection, through the position that board memory impact detects, when carrying out Image detection comparison after detecting, automatically can discharge and originally cause detecting affected part because of this backlight module.
Fig. 5 of the present embodiment illustrates and is placed in this detection platform 12 by this detection thing 2 (as: display panels), and correspond to this hollow-out parts 123, make this detection thing 2 can coincide on this backlight module 13, if this detection thing 2 cannot coincide completely with this backlight module 13 herein, this detection thing 2 should be made to be less than 1 millimeter with the gap of this backlight module 13, comparatively testing result can not be affected, recycle this fixed mount 122 this detection thing 2 is fixed, to prevent when this detection thing 2 is tested, can not offset because of external force, and cause testing result to have error to produce, before the energising of this detection thing 2, light this backlight module 13 and irradiate this detection thing 2, this image sensor 11 captures the image of this detection thing 2, this step detects under this detection thing 2 carries out the situation used at no power, the surface of this detection thing 2 is with or without the defect in mechanism, damage or have any problem causing having light leakage phenomena.
In addition, recycling this automatic control module 17 makes this detection thing 2 electrically conduct use, light this backlight module 13 and irradiate this detection thing 2 after being energized, the image of this detection thing 2 after this image sensor 11 acquisition energising, this step detect this detection thing 2 energising carry out the situation used under, the surface of this detection thing 2 with or without the defect in mechanism, damage or have any problem causing having light leakage phenomena.
Fig. 6 of the present embodiment illustrates the light source of closing this backlight module 13, light the upper surface (as: side of the colored filter 21 of display panels) that this high angle sidelight module 16 irradiates this detection thing 2, this image sensor 11 captures the surface image of this detection thing 2, the upper surface that this step detects this detection thing 2 has the image of free from dust or defect, if have dust accretions or defect, then through the position of these dust accretions of portrait memory or defect.
Fig. 7 of the present embodiment illustrates and closes this high angle sidelight module 16, and fall this hoistable platform module 15 with this backlight module 13 to original height and position (namely returning back to state before using), this hollow-out parts 123 is made to expose the lower surface (as: side of the thin film transistor (TFT) 22 of display panels) of this detection thing 2, light this low angle sidelight module 14, and through the lower surface of this detection thing 2 of direct irradiation, this image sensor 11 captures the surface image of this detection thing 2, the lower surface that this step detects this detection thing 2 has the image of free from dust or defect, if have dust accretions or defect, then through the position of these dust accretions of portrait memory or defect.
In final step, by above-mentioned each image detecting this detection thing 2 of acquisition, after carrying out mutual compare of analysis, this image detector 11 detect acquisition image in, there is the part of the detection image being subject to dust interference effectively can be got rid of and distinguish, to prevent the facts of dust Interference Detection from occurring, carry out precision and correct automatic optics inspection.
The shortcoming that the present embodiment provides an automatic optical detection device to be directed to known techniques improves, have about known automatic optics inspection Chang Yinwei dust for the interference detected, and cause undetected increase and cross examining situation about increasing, or the detection action of automatic optical detection device is too numerous and diverse, reduces it on the contrary and detect operating efficiency.And the advantage of the automatic optical detection device of the present embodiment is, it improves the structural design of this automatic optical detection device 1, the Image detection of dust or defect is directed to through this low angle sidelight module 14 and this high angle printing opacity module 16, after the mutual comparison through detection image, can effectively get rid of because dust cause image to disturb part, improve and detect accurate and accuracy, in addition, utilize the structural design of this automatic optical detection device 1, with whole-course automation and not numerous and diverse testing process, improve detection efficiency.
In sum, the utility model relates to a kind of automatic optical detection device, it controls an image sensor respectively through this automatic control module, one detection platform, one backlight module, one hoistable platform module, one low angle sidelight module and a high angle sidelight module, through this backlight module, this low angle sidelight module and this angle sidelight module are irradiated on this detection thing respectively, and after capturing detection image respectively by image sensor, after carrying out mutual compare of analysis, this image detector detect in the image of acquisition, there is the part of the detection image being subject to dust interference effectively can be got rid of and distinguish, occur to prevent the facts of dust Interference Detection, carry out precision and correct automatic optics inspection, in addition, also by the respective outer side edges of this detection platform and this hoistable platform module, enable this automatic optical detection device with whole-course automation and not numerous and diverse testing process, improve detection efficiency.
Above is only preferred embodiment of the present utility model, not be used for limit the utility model implement scope, all equalizations of doing according to shape, structure, feature and the spirit described in the utility model right change and modify, and all should be included in right of the present utility model.

Claims (9)

1. an automatic optical detection device, is characterized in that, it comprises:
One image sensor;
One detection platform, it is positioned at below this image sensor, and this detection platform has a hollow-out parts, and this image sensor is to should hollow-out parts;
One backlight module, it is positioned at below this detection platform, and corresponds to this hollow-out parts;
One hoistable platform module, it carries this backlight module;
One low angle sidelight module, it is arranged under this detection platform, and is positioned at the side of this hoistable platform module, and this low angle sidelight module corresponds to this hollow-out parts;
One high angle sidelight module, it is arranged on this detection platform, and corresponds to the top of this low angle sidelight module; And
One automatic control module, it is electrically connected with this image sensor, this detection platform, this backlight module, this hoistable platform module, this low angle sidelight module and this high angle sidelight module respectively;
Wherein, detect thing by one and be placed in this detection platform, and correspond to this hollow-out parts, this backlight module coincides in this detection thing, starting this automatic control module makes this detection thing of this detection platform electrically conduct, light this backlight module and irradiate this detection thing, this image sensor captures the image of this detection thing, close this backlight module, light this this detection thing of high angle sidelight module radiates, this image sensor captures the image of this detection thing, close this high angle sidelight module, fall this hoistable platform module and this backlight module, light this low angle sidelight module, and through this detection thing of direct irradiation, this image sensor captures the image of this detection thing.
2. automatic optical detection device as claimed in claim 1, it is characterized in that, arrange a fixed mount further, this fixed mount is arranged at the side of this hollow-out parts, and for fixing this detection thing.
3. automatic optical detection device as claimed in claim 1, it is characterized in that, one first holder and one second holder are set further, this first holder is arranged in this detection platform, under this second holder is arranged at this detection platform, this this first holder of high angle sidelight module pivot joint, this this second holder of low angle sidelight module pivot joint.
4. automatic optical detection device as claimed in claim 1, it is characterized in that, wherein this low angle sidelight module and this high angle sidelight module all have at least one blue LED chip.
5. automatic optical detection device as claimed in claim 4, it is characterized in that, wherein this at least one blue LED chip sends a blue light, and the wavelength of this blue light is between 380nm ~ 460nm.
6. automatic optical detection device as claimed in claim 1, is characterized in that, wherein before detecting thing by one and being placed in this detection platform, light this backlight module, this image detector captures the image of this backlight module.
7. automatic optical detection device as claimed in claim 1, is characterized in that, wherein before the energising of this detection thing, this backlight module irradiates this detection thing, and this image sensor captures the image of this detection thing.
8. automatic optical detection device as claimed in claim 1, it is characterized in that, wherein this image sensor is photosensitive coupling component.
9. automatic optical detection device as claimed in claim 1, it is characterized in that, wherein this detection thing is a display panels, the side of this this display panels colored filter of high angle sidelight module radiates, the side of this this display panels thin film transistor base plate of low angle sidelight module radiates.
CN201520934042.2U 2015-11-20 2015-11-20 Automatic optical detector Active CN205157919U (en)

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Application Number Priority Date Filing Date Title
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Application Number Priority Date Filing Date Title
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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107300790A (en) * 2017-06-23 2017-10-27 南京中电熊猫平板显示科技有限公司 A kind of device for measuring liquid crystal module twill angle
CN109470452A (en) * 2018-11-13 2019-03-15 安徽江淮汽车集团股份有限公司 The detection method of HUD optical parameter

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107300790A (en) * 2017-06-23 2017-10-27 南京中电熊猫平板显示科技有限公司 A kind of device for measuring liquid crystal module twill angle
CN109470452A (en) * 2018-11-13 2019-03-15 安徽江淮汽车集团股份有限公司 The detection method of HUD optical parameter

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