KR101743477B1 - Display glass vision inspection appratus - Google Patents

Display glass vision inspection appratus Download PDF

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Publication number
KR101743477B1
KR101743477B1 KR1020150188467A KR20150188467A KR101743477B1 KR 101743477 B1 KR101743477 B1 KR 101743477B1 KR 1020150188467 A KR1020150188467 A KR 1020150188467A KR 20150188467 A KR20150188467 A KR 20150188467A KR 101743477 B1 KR101743477 B1 KR 101743477B1
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KR
South Korea
Prior art keywords
inspection
unit
lens
camera
inspection object
Prior art date
Application number
KR1020150188467A
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Korean (ko)
Inventor
이성희
민상기
정재훈
김수길
Original Assignee
(주)진성이엔지
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Priority to KR1020150188467A priority Critical patent/KR101743477B1/en
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Publication of KR101743477B1 publication Critical patent/KR101743477B1/en

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    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/1303—Apparatus specially adapted to the manufacture of LCDs

Abstract

The present invention relates to a display glass vision inspection apparatus, and more particularly, to a display glass vision inspection apparatus which includes a main frame unit for absorbing an external shock or vibration to minimize deformation, a transfer unit for moving the inspection object to the inspection area, The inspection system consists of three parts: an inspection part in which the combined optical system is divided into three areas, and a defect detector is arranged so as to detect the defects of the product by a simultaneous continuous method; a cover part installed for the purpose of reducing errors in detection results due to scattering of light and various external factors; A vision inspection system operation and an image processing algorithm according to a process order.

Description

[0001] DISPLAY GLASS VISION INSPECTION APPRATUS [0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vision inspection system for detecting defects on various glass and sheet surfaces widely used as display components and discriminating and inspecting defective products.

In recent years, tempered glass substrates have been mainly used for display devices that are mounted on multimedia devices, smart phones, TVs, and Phablets, and images are formed, and sheets and flexible materials are also applied .

Glass of reinforced glass substrate may be defective due to various factors in the process of being made from the molding process (cutting, polishing, cleaning, drying, strengthening treatment, coating, etc.) to final product. The defects mentioned here refer to scratches, stains, scratches, foreign matter, cracks, black spots, and the like generated on the glass substrate. If defects are present on the glass substrate, the entire display performance is deteriorated and, in some cases, it is required to be treated as a defective product.

Conventionally, inspection of a glass substrate has been performed by a visual inspection of a worker. This method is a method of inspecting one surface of an inspection object and then inspecting the back surface of the inspection object. The deviation of the inspection result according to the skill and condition of the operator The reliability was poor. And, in handling the object to be inspected, carelessness often caused secondary contamination and defect.

Therefore, although a few companies have constructed inspection apparatuses using a jig or semi-auto method, they have not been able to solve problems such as insufficient detection capability, insufficient type of defect discrimination, and reliability uncertainty. Problems of the conventional inspection apparatus will be briefly described as follows.

(1) Due to the diffuse reflection of light, it is impossible to inspect the crack of the cover glass interface (Fig. 1).

② In order to inspect the defective surface of the product, a separate inspection system is required to rotate the product by 90 ° twice. (Fig. 2)

③ Other system for printing inspection, logo inspection, foreign body inspection and inspection of shot should be separately configured.

(4) Generally, in a clean room, a magnetic conveyor is used to prevent foreign matter from being transferred during product transportation, thereby causing discontinuous operation of magnetic (Fig. 3).

⑤ Slip, bump, and wave phenomenon occur due to the application of conveyor roller system. In order to solve this problem, if the product transfer method is changed to robot, unchecked area may occur due to interference of inspection area. 4)

SUMMARY OF THE INVENTION The present invention has been conceived to solve the problems as described above, and it is an object of the present invention to provide a method and apparatus for inspecting and inspecting an object to be inspected successively by providing a plurality of inspection bodies along a conveying direction of the object to be inspected Such a plurality of inspection objects is composed of a camera, a lens, and illumination. The inspection object is coaxial with the object to be inspected, coaxial with the object to be inspected, Which is capable of inspecting the surface of a display component with certainty by reducing inspection time, improving reliability, ensuring inspection stability, and improving precision, by implementing various types of optical devices such as a display glass vision inspection device .

Other objects and advantages of the present invention will be described hereinafter and will be understood by the embodiments of the present invention. Further, the objects and advantages of the present invention can be realized by the means and the combination shown in the claims.

In order to solve the above-mentioned problems, the present invention provides a display device comprising: a conveying part (10) for conveying a glass inspection object (G) of a display component in one direction; An inspection unit 20 that continuously detects and inspects the presence or absence of defects of the object G to be inspected at one side of the transfer unit 10 while continuously inspecting the object G while being spaced apart from each other so as to correspond to the object G to be inspected; And a control unit.

As described above, according to the present invention,

① In a typical crack inspection system, light is emitted by the printed part of the cover glass

It is impossible to detect cracks due to the lack of transmission. However, in the present invention, this problem is solved by applying the coaxial light source method.

② By integrating various lighting systems such as coaxial illumination, backlighting, and side lighting system into one system, it is possible to inspect the crack of cover glass, and it is possible to make scratching and inspection of foreign objects as one system. have.

(3) Through the conveyance of the object to be inspected using the LM guide, there is an effect that the vibration occurring in the conveyor for conveying the object to be inspected and the slip, bump, and wave phenomenon of the object to be inspected do not occur.

④ It has the effect of securing inspection stability and reliability by securing vibration suppression designing technique that minimizes vibration when moving the object to be inspected and designing technique to avoid interference in the inspection area.

⑤ It is possible to maximize the defect detection by the control technology that improves the position and speed accuracy by applying precise control of the object to be inspected and section interpolation technology.

⑥ In order to conduct crack detection and double inspection of scratches which can not be examined by conventional inspection method, it is possible to shorten the inspection time by applying optical design technology which can uniformly, concentrate and collimate light irradiation. It is possible to obtain a result value that is reliable and reliable.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a view showing a conventional cover-class interface crack inspection example. FIG.
Figure 2 shows a conventional 90 ° inspection system according to the surface scratch direction.
3 is an illustration of an embodiment showing surface defects due to discontinuous drive of conventional product transport.
4 is a view of one embodiment showing a problem factor according to a conventional conveyor conveying system.
5 is a conceptual diagram of an embodiment showing three inspection bodies (optical devices) according to the present invention.
Figure 6 is a perspective view of one embodiment shown in Figure 5;
7 is a perspective view of an embodiment of a display glass vision inspection apparatus according to the present invention.
8 is a perspective view of an embodiment showing a configuration of a camera and a lens of first and second inspection bodies according to the present invention;
9 is a perspective view of an embodiment showing a first illumination coaxially installed on a first inspection body according to the present invention;
10 is a perspective view of an embodiment showing a second illumination used in a second inspection body according to the present invention.
11 is a perspective view of an embodiment showing a third inspecting body according to the present invention.
12 is a perspective view of an embodiment of a cover according to the present invention.
13 is a perspective view of a display glass vision inspection apparatus according to an embodiment of the present invention.

Before describing in detail several embodiments of the invention, it will be appreciated that the application is not limited to the details of construction and arrangement of components set forth in the following detailed description or illustrated in the drawings. The invention may be embodied and carried out in other embodiments and carried out in various ways. It should also be noted that the device or element orientation (e.g., "front,""back,""up,""down,""top,""bottom, Expressions and predicates used herein for terms such as "left,"" right, "" lateral, " and the like are used merely to simplify the description of the present invention, Or that the element has to have a particular orientation.

The present invention has the following features in order to achieve the above object.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Reference will now be made in detail to the preferred embodiments of the present invention, examples of which are illustrated in the accompanying drawings. Prior to this, terms and words used in the present specification and claims should not be construed as limited to ordinary or dictionary terms, and the inventor should appropriately interpret the concepts of the terms appropriately It should be interpreted in accordance with the meaning and concept consistent with the technical idea of the present invention based on the principle that it can be defined.

Therefore, the embodiments described in this specification and the configurations shown in the drawings are merely the most preferred embodiments of the present invention and do not represent all the technical ideas of the present invention. Therefore, It is to be understood that equivalents and modifications are possible.

According to an embodiment of the present invention, a transfer unit 10 for transferring a glass inspection object G of a display component in one direction; An inspection unit 20 that continuously detects and inspects the presence or absence of defects of the object G to be inspected at one side of the transfer unit 10 while continuously inspecting the object G while being spaced apart from each other so as to correspond to the object G to be inspected; And a control unit.

The inspection unit 20 includes a first camera 21a, a first lens 21b and a first illumination unit 21c corresponding to the inspection object G conveyed in one direction by the transfer unit 10, (21) of a coaxial illumination type for inspecting cracks, scratches and foreign matter of the object (G) to be inspected by arranging and fixing the object (G) in a straight line; The second camera 22a and the second lens 22b are arranged in a straight line on one surface of the object to be inspected G corresponding to the inspection object G to be transferred in one direction by the transferring unit 10, A second inspection body 22 of a backlight illumination type for inspecting the printing of the inspection object G and the logo failure by arranging and operating the inspection object G on the rear surface of the inspection object G; The third camera 23a and the third lens 23b are arranged and fixed in such a manner that the third camera 23a and the third lens 23b are arranged in such a manner as to be inclined at a predetermined angle to the inspection object G conveyed in one direction by the transferring unit 10, Is disposed obliquely on the inspection object G at a predetermined angle of inclination different from that of the third camera 23a and the third lens 23b so as to detect the unevenness of the inspection object G, 23); Or two or more of them.

The inspection unit 20 includes first, second, and third inspection units 21, 22, and 23, and each of the first, second, and third inspection units 21, 22, And is provided so as to be rotatable left and right on the installed main frame portion 30 and is provided so as to be capable of changing its position upward, downward, forward and backward by the unit 25 and the conveying means 27,

A main frame 30 fixedly mounted on the upper surface of the transfer unit 10 and the inspection unit 20; In order to protect the transfer unit 10 and the inspection unit 20 from scattering of light generated from the inspection unit 20 and external impact and to reduce the discrimination and inspection error of the inspection unit 20, A cover part 40 for protecting the transfer part 10 and the inspection part 20 from the upper part of the inspection part 20; A control unit for controlling the transfer unit 10 and the inspection unit 20; Is further provided.

In addition, the main frame unit 30 includes a frame 31 on which a conveying member is installed so as to enable height adjustment and conveyance; A pedestal 33 fixed to the upper portion of the frame 31 to prevent external vibrations or shocks from being transmitted to the conveyance unit 10 and the inspection unit 20; A buffer member 32 provided between the stone stone table 33 and the frame 31 and having a buffering function; And a control unit.

The cover plate 40 has an unillustrated acrylic plate assembled on an aluminum rim and has an entrance and exit door on all four sides. The acrylic plate is used for scattering light and for controlling the conveying unit 10 and the inspection unit 20, And is post-treated in black to protect it.

Hereinafter, a display glass vision inspection apparatus according to a preferred embodiment of the present invention will be described in detail with reference to FIGS. 1 to 13. FIG.

The display glass vision inspection apparatus according to the present invention includes a main frame unit 30, a transfer unit 10, an inspection unit 20, a cover unit 40, and a control unit (not shown).

The main frame portion 30 is a welded structure formed by connecting a plurality of pipes (e.g., square pipes) to each other. The main frame portion 30 may be configured to have a plurality of stages according to an embodiment of the user, (E.g., a wheel) for transporting and transporting can be provided, and a structure capable of adjusting the height in the upward and downward directions through various combinations and fastening can be provided.

The main frame unit 30 includes a frame 31 composed of a plurality of pipes, a transfer unit 10 installed at the upper end of the frame 31, an inspection unit 20, a cover unit 40, And a cushioning member 32 (ex. Rubber material) provided between the frame 31 and the cushioning member 32 and having a buffering action.

In other words, the stone pot 33 is installed at the upper end of the frame 31 so as to prevent deformation, so that the plurality of constructions can be firmly fixed and floated.

Further, on the side surface of the main frame unit 30, additional devices for operation of the present invention such as a hard part, a pneumatic and vacuum device corresponding to a control part can be assembled.

The conveyance unit 10 is provided at the upper end of the main frame unit 30 described above (more specifically, on the upper surface of the stoning table 33), and a linear LM guide is used to inspect the conveyance unit 10 It is possible to move leftward and rightward (forward and backward along the viewing direction) in the longitudinal direction of the conveying unit 10 in a state where the object G (various glass and sheets widely used as display components) is fixedly installed (Of course, the LM guide is provided with a mounting device for vertically standing and fixing the inspection object G on the ground, and the LM guide is vertically fixed to the mounting device so as to be transferred .)

Of course, in the present invention, the conveying unit 10 is used as an LM guide. However, it is to be understood that various types of apparatuses may be alternatively used as long as the inspection object G can be conveyed to the left and right in a fixed state Of course.

The inspection unit 20 is installed on the upper surface of the main frame unit 30 together with the transfer unit 10 and the inspection unit 20 is formed of a plurality of inspection units and a plurality of inspection units are arranged on one surface of the transfer unit 10 And are disposed along the installation direction of the transfer unit 10 and spaced apart from each other.

Since the inspection object G fixed to the conveyance unit 10 is conveyed along the installation direction of the conveyance unit 10 and a plurality of inspection bodies are installed in the conveyance direction of the inspection object G, As the object G is transferred, various defects of the surface are continuously inspected.

In the present invention, the inspection object is composed of first, second, and third inspection objects, and one of the plurality of inspection objects may be used, or two or more inspection objects may be used together according to the embodiment of the user.

The first inspection body 21 (coaxial illumination type) comprises a first illumination 21c, a first lens 21b and a first camera 21a. The first inspection body 21 has a crack (30 占 퐉 or more) That is, to be arranged in a straight line with the object G to be inspected fixed to the transferring section 10, for inspection of scratch (30 占 퐉 or more), foreign object (30 占 퐉 or more) The first lens 21b and the first camera 21a are arranged in this order in the order of the first illumination 21c, the first lens 21b and the first camera 21a spaced apart from one surface (front surface) of the transfer unit 10, The illumination 21c, the first lens 21b, and the first camera 21a are arranged in a straight line. The first camera 21a, the first lens 21b, the first illumination 21c, and the object to be inspected (G)

The second inspection body 22 (backlight illumination system) is composed of another second illumination 22c, a second lens 22b and a second camera 22a as in the case of the first inspection body 21, The inspected object G inspected by the inspecting body 21 is conveyed to the one side by the conveying unit 10 and subjected to the second inspection by the second inspected object 22, (30 탆 or more) and logo defects (30 탆 or more) are inspected. At this time, the second inspection body 22 is arranged such that the second lens 22b and the second camera 22a are sequentially arranged on the front surface of the inspection object G, and the rear surface of the inspection object G The second illumination 22c is provided so as to face the rear surface of the object G to be inspected. This time is referred to as a second inspection area. (Arrangement order: the second camera 22a, the second lens 22b, the inspection object G, the second illumination 22c)

The third inspection object 23 (oblique illumination method) is a method in which the inspection object G sequentially passes through the first and second inspection objects and then finishes the inspection of the final inspection object G The third inspection object 23 at this time is composed of another third camera 23a, a third lens 23b and a third illumination 23c similarly to the first and second inspection objects, The third lens 23b and the third camera are arranged so as to be inclined in order at a predetermined angle at a predetermined angle from one side (ex. Left side) of the third lens 23b and the third lens 23c, (Ex: right side) of one side of the inspection object G at a predetermined angle, unlike the third camera 23a. This time is called the third inspection area.

As described above, the first inspection member 21 for cracking, scratching, foreign objects inspection, the second inspection member 22 for printing inspection, and the third inspection member 23 for stain inspection are disposed in the conveying direction of the inspection object G So that the inspection object G is continuously conveyed in one direction while being stopped for each inspection object and continuously inspected.

In the case of the first, second, and third inspection bodies 21, 22, and 23 described above, the camera and the lens are formed as an integral assembly for each inspection object, and a separate unit 25 (Capable of adjusting the installation height so as to be opposed to the object G to be inspected) up and down on the main frame portion 30 and fixed to the mounting frame 24) In this state, the integrated assembly of the camera and the lens can be finely adjusted in the forward and backward directions through the sliding member 26 provided in the assembly. Thus, the camera and the lens- The unit 25 is a structure in which a conveying means 27 such as an LM guide or a linear bushing is provided so as to be opposed to the conveying unit 10 (the inspection object G) at the upper and lower ends thereof, It is possible to adjust the separation distance from the object G to be inspected) The upper and lower ends of the unit 25 are assembled to the conveying means 27 by the circular workpiece 28 and can be pivoted left and right so that the tilting angle .

In the above description, the inspection object G conveyed through the conveyance unit 10 is inspected in the order of the first, second and third inspection bodies 21, 22 and 23. However, according to the embodiment of the present invention, Depending on the order of the multiple test specimens and the type of test specimen to be used, the test order and type of test can be varied in various ways.

The cover portion 40 is provided in the main frame portion 30 described above and has a structure for protecting the transfer portion 10 and the inspection portion 20 while forming the outer portion of the transfer portion 10 and the inspection portion 20 described above .

The cover 40 is provided with an unlocked acrylic plate on an aluminum frame so that an on / off door is provided on each side of the cover 40, So that the inspection and inspection errors of the inspection unit 20 can be reduced by preventing the scattering of the inspection unit 20 and the post-processing of the transfer unit 10 and the inspection unit 20 from the outside.

The control unit is for controlling the transfer unit 10 and the inspection unit 20. The control unit may be installed at a desired site such as the main frame unit 30, The operation of the vision inspection apparatus according to the present invention and the image processing algorithm of the inspection unit 20 are controlled in accordance with the process order, which is connected to the transfer unit 10 and the inspection unit 20 of the present invention.

That is, in addition to the control of the overall operation of the transferring unit 10 such as the conveyance of the conveying unit 10, the conveying speed, and the stopping position for the inspection, the image acquiring / The operation control over the entire vision inspection apparatus of the present invention, such as defect inspection, discrimination, and the like.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. It is to be understood that various changes and modifications may be made without departing from the scope of the appended claims.

10: transfer part 20: inspection part
21: first inspection body 21a: first camera
21b: first lens 21c: first illumination
22: second inspection body 22a: second inspection body
22b: second lens 22c: second illumination
23: third inspection member 23a: third camera
23b: third lens 23c: third illumination
24: Installation frame 25: Unit
26: Sliding member 27: Feeding means
28: Round work piece 30: Main frame part
31: frame 32: buffer member
33: Stone stool half 40: Cover part
G: Inspection object

Claims (6)

A glass inspection object G of a display component is transferred in one direction, an LM guide is used, and the LM guide is provided with a mounting device capable of vertically standing and fixing the inspection object G on the ground, A conveying portion 10 having a form in which the LM guide is vertically conveyed while being fixed;
An inspection unit 20 that continuously detects and inspects the presence or absence of defects of the object G to be inspected at one side of the transfer unit 10 while continuously inspecting the object G while being spaced apart from each other so as to correspond to the object G to be inspected;
A main frame part 30 fixed to the upper surface of the transfer part 10 and the inspection part 20;
In order to protect the transfer unit 10 and the inspection unit 20 from scattering of light generated from the inspection unit 20 and external impact and to reduce the discrimination and inspection error of the inspection unit 20, A cover part 40 for protecting the transfer part 10 and the inspection part 20 from the upper part of the inspection part 20;
And a control unit for controlling the transfer unit 10 and the inspection unit 20,
The inspection unit 20 is provided with a first camera 21a, a first lens 21b and a first illumination unit 21c corresponding to the inspection object G conveyed in one direction by the conveyance unit 10, A first inspection body 21 of a coaxial illumination type for inspecting a crack, a scratch and a foreign substance of the inspection object G and a second inspection body 21 of a coaxial illumination type which inspects the inspection object G in a one- The second camera 22a and the second lens 22b are arranged in a straight line on one surface of the inspection object G while the second illumination 22c is arranged on the rear surface of the inspection object G The second inspection member 22 of the backlight illumination type which inspects the printing of the inspection object G and the logo defect and the inspection object G conveyed in the one direction by the conveyance unit 10 The third camera 23a and the third lens 23b are arranged and fixed such that the third camera 23a and the third lens 23b correspond to each other in an inclined form, And a third inspection body (23) of an oblique illumination type arranged obliquely on the inspection object (G) at a predetermined angle of inclination different from that of the inspection object (G) and inspecting the unevenness of the inspection object (G)
The inspecting unit 20 comprises first, second and third inspecting bodies 21, 22 and 23 and each of the first inspecting bodies 21, And is rotatably provided to the frame portion 30 in the left and right directions and is provided so as to be capable of changing its position upward, downward, forward and backward by the unit 25 and the conveying means 27,
The main frame part 30 is fixed to the upper part of the frame 31 so that a height of the main frame part 30 can be adjusted and conveyed and an external vibration or impact is applied to the conveying part 10 and the inspection part And a cushioning member 32 installed between the stone block 33 and the frame 31 and acting as a buffering member,
The cover plate 40 has an unillustrated acrylic plate assembled on an aluminum frame and has an entrance and exit door on all four sides. The acrylic plate protects the conveyance unit 10 and the inspection unit 20 from external scattering, To be post-processed in black to make
The camera and the lens are integrally assembled in each of the first, second and third inspecting bodies 21, 22 and 23 so that the first and second inspecting bodies 21, So that the integrated assembly of the camera and the lens can be moved in the forward and backward directions through the sliding member 26 provided on the assembly in a state in which the installation height can be adjusted so as to be opposed to the object G to be inspected, It is possible to fine-tune the position even if it is installed,
The unit 25 for raising and lowering the camera and the lens-integrated assembly has a structure in which the conveying means 27 is installed so as to be opposed to the inspection object G at the upper and lower ends thereof, The upper and lower ends of the unit 25 can be rotated in the left and right directions by assembling the circular workpiece 28 to the transfer means 27 so that the inspection object G The display glass vision inspection apparatus according to claim 1,
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KR1020150188467A 2015-12-29 2015-12-29 Display glass vision inspection appratus KR101743477B1 (en)

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Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101954089B1 (en) * 2018-08-21 2019-03-06 (주)트라이시스 System for inspecting mura of display panel
US11216935B2 (en) 2018-01-31 2022-01-04 Samsung Electronics Co., Ltd. Vision inspection management method and system inspecting based on process data
KR102350996B1 (en) * 2021-10-27 2022-01-14 (주)메티스 Inspection apparatus for particle of glass using optical lens

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013164371A (en) 2012-02-13 2013-08-22 Nippon Electric Glass Co Ltd Inspection device and inspection method for phosphor-containing glass member

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2013164371A (en) 2012-02-13 2013-08-22 Nippon Electric Glass Co Ltd Inspection device and inspection method for phosphor-containing glass member

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11216935B2 (en) 2018-01-31 2022-01-04 Samsung Electronics Co., Ltd. Vision inspection management method and system inspecting based on process data
KR101954089B1 (en) * 2018-08-21 2019-03-06 (주)트라이시스 System for inspecting mura of display panel
KR102350996B1 (en) * 2021-10-27 2022-01-14 (주)메티스 Inspection apparatus for particle of glass using optical lens

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