CN217688624U - Device for detecting edge defects of display panel and test equipment - Google Patents
Device for detecting edge defects of display panel and test equipment Download PDFInfo
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- CN217688624U CN217688624U CN202222399932.0U CN202222399932U CN217688624U CN 217688624 U CN217688624 U CN 217688624U CN 202222399932 U CN202222399932 U CN 202222399932U CN 217688624 U CN217688624 U CN 217688624U
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Abstract
The utility model discloses a device and test equipment for display panel edge defect detects belongs to display panel test field. The apparatus includes a reflective component and a camera. The reflecting component comprises a top surface reflecting mirror, a bottom surface reflecting mirror and a side surface reflecting mirror group. The side reflector group at least comprises a first side reflector and a second side reflector, the reflecting surfaces of the first side reflector and the second side reflector are arranged in a relatively parallel and inclined mode, and the first side reflector is used for reflecting the image on the side face of the display panel to the camera through the second side reflector. The camera lens is axially vertical to the side surface of the display panel and is used for receiving images of different positions of the display panel reflected by the top reflector, the bottom reflector and the side reflector group. The device provided by the utility model, can realize the edge defect and detect, need not the polyphaser and get for instance many times, improved detection efficiency.
Description
Technical Field
The utility model belongs to display panel tests the field, more specifically relates to a device and test equipment for display panel edge defect detects.
Background
The display panel is a major component of the display device, and the quality of the display panel determines the quality of the display device. In the production process of the display panel, edge defects of the display panel are often required to be detected, the display panel is sequentially photographed and detected through an industrial vision camera, so that the display panel with the edge defects is picked out, and the vision detection is to use the camera to replace human eyes for measurement and judgment. The visual detection means that a camera converts a shot target into an image signal, transmits the image signal to a special image processing system, and converts the image signal into a digital signal according to information such as pixel distribution, brightness and color, so as to finally determine whether the edge of the display panel has defects.
In the camera technology, the detection method of the edge defect of the display panel is to photograph the top edge, the bottom edge and the side surface of the display panel respectively through three independent cameras, so that the detection of the edge defect is realized.
However, the above detection requires the use of three cameras and three imaging analysis processes, resulting in low detection efficiency.
SUMMERY OF THE UTILITY MODEL
To the above defect of prior art or improve the demand, the utility model provides a device and test equipment for display panel edge defect detects, its aim at can once get for instance through single camera and acquire the image of the upper surface that the display panel edge corresponds, lower surface and side simultaneously, realize edge defect and detect, need not the polyphaser and get for instance many times, improved detection efficiency.
In a first aspect, the present invention provides an apparatus for edge defect detection of a display panel, the apparatus comprising a reflective assembly and a camera;
the reflecting assembly comprises a top surface reflecting mirror positioned at the end part of the upper surface of the display panel, a bottom surface reflecting mirror positioned at the end part of the lower surface of the display panel and a side surface reflecting mirror group positioned at the side surface of the display panel;
an acute angle is formed between the reflecting surface of the top surface reflector and the upper surface of the display panel, and an acute angle is formed between the reflecting surface of the bottom surface reflector and the lower surface of the display panel;
the side reflector group at least comprises a first side reflector and a second side reflector, the reflecting surfaces of the first side reflector and the second side reflector are arranged in a relatively parallel and inclined mode, and the first side reflector is used for reflecting the image on the side surface of the display panel to the camera through the second side reflector;
the camera lens is axially vertical to the side surface of the display panel and is used for receiving images of different positions of the display panel reflected by the top surface reflector, the bottom surface reflector and the side surface reflector group.
Optionally, the apparatus further comprises a support assembly, the support assembly comprising a test stand and a stage, the stage being located on the test stand, the camera being located on the test stand.
Optionally, the support assembly further includes a lifting structure, the lifting structure is located on the test bench, an output end of the lifting structure is in transmission connection with the stage to lift the stage, the camera can slide on the test bench in a direction close to or away from the stage, and the first side reflector and the second side reflector are slidably disposed on the test bench to adjust a distance between the first side reflector and the second side reflector.
Optionally, the lifting structure is a cylinder or an electric push rod.
Optionally, the support assembly further includes a first support frame and a second support frame on the test bench, the top surface mirror and the bottom surface mirror are arranged on the first support frame at intervals, and the first side surface mirror and the second side surface mirror are slidably arranged on the second support frame.
Optionally, the support assembly further includes a third support frame, the third support frame is located on the test table, and the camera is located on the third support frame.
Optionally, the test platform is provided with a graduated scale, and the graduated scale is located on the side edge of the test platform.
Optionally, the device further comprises an illumination assembly, the illumination assembly comprising a support bar and an illumination lamp, the support bar being located at one side of the camera, the illumination lamp being located at the top end of the support bar.
Optionally, the device further comprises an integrated motor, the integrated motor is at least connected with the top surface reflector, the bottom surface reflector, the first side surface reflector, the second side surface reflector and the camera, and the integrated motor controls the top surface reflector, the bottom surface reflector, the first side surface reflector, the second side surface reflector and the camera to move so as to adjust the focusing.
In a second aspect, the present invention is directed to a test apparatus comprising a device for edge defect detection of a display panel as set forth in the first aspect.
The embodiment of the utility model provides a beneficial effect that technical scheme brought is:
for the method for detecting the edge defect of the display panel provided by this embodiment, when detecting the edge defect of the display panel, the field of view of the camera may be divided into three parts by using a mirror image-taking principle, each part respectively detects the upper surface end (obtained after being reflected by the top surface mirror), the lower surface end (obtained after being reflected by the bottom surface mirror) and the side surface (obtained after being reflected by the first side surface mirror and the second side surface mirror) of the display panel correspondingly, that is, the camera obtains the image of the upper surface end through the top surface mirror, the camera obtains the image of the lower surface end through the bottom surface mirror, the camera obtains the image of the side surface through the first side surface mirror and the second side surface mirror, and further, the camera can simultaneously obtain the images of the upper surface, the lower surface and the side surface corresponding to the edge of the display panel at one time without multi-image-taking. And finally, analyzing the image to obtain the defect information of the edge of the display panel.
That is to say, the embodiment of the utility model provides a pair of a device for display panel edge defect detects can once get for instance through single camera and acquire the image of the upper surface that the display panel edge corresponds simultaneously, lower surface and side, realizes edge defect and detects, need not the polyphaser and gets for instance many times, has improved detection efficiency.
Drawings
Fig. 1 is a schematic structural diagram of an apparatus for detecting edge defects of a display panel according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a side mirror group according to an embodiment of the present invention.
The symbols in the drawings represent the following meanings:
1. a reflective component; 11. a top surface mirror; 12. a bottom surface mirror; 13. a side mirror group; 131. a first side mirror; 132. a second side reflector; 2. a camera; 3. a support assembly; 31. a test bench; 311. leveling bolts; 32. a stage; 33. a lifting structure; 34. a first support frame; 35. a second support frame; 36. a third support frame; 37. a slider; 4. a lighting assembly; 41. a support bar; 42. a lighting lamp; 100. a display panel.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention. Furthermore, the technical features mentioned in the embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.
Fig. 1 is a schematic structural diagram of an apparatus for detecting edge defects of a display panel according to an embodiment of the present invention, as shown in fig. 1, the apparatus includes a reflection assembly 1 and a camera 2.
The reflection assembly 1 includes a top surface mirror 11 at an end portion of an upper surface of the display panel 100, a bottom surface mirror 12 at an end portion of a lower surface of the display panel 100, and a side surface mirror group 13 at a side surface of the display panel 100.
The reflecting surface of the top reflector 11 forms an acute angle with the upper surface of the display panel 100, and the reflecting surface of the bottom reflector 12 forms an acute angle with the lower surface of the display panel 100.
The side mirror group 13 includes at least a first side mirror 131 and a second side mirror 132, the reflecting surfaces of the first side mirror 131 and the second side mirror 132 are arranged obliquely with respect to the parallel, and the first side mirror 131 is configured to reflect the image of the side surface of the display panel 100 to the camera 2 through the second side mirror 132.
The lens of the camera 2 is axially perpendicular to the side surface of the display panel 100, and is used for receiving images of different positions of the display panel 100 reflected by the top reflector 11, the bottom reflector 12 and the side reflector group 13.
For the method for detecting the edge defect of the display panel 100 provided in this embodiment, when detecting the edge defect of the display panel 100, the field of view of the camera 2 may be divided into three parts by using a reflector image-taking principle, each part respectively and correspondingly detects the upper surface end (obtained after being reflected by the top reflector 11), the lower surface end (obtained after being reflected by the bottom reflector 12), and the side surface (obtained after being reflected by the first side reflector 131 and the second side reflector 132, see fig. 2), that is, the camera 2 obtains the image of the upper surface end through the top reflector 11, the camera 2 obtains the image of the lower surface end through the bottom reflector 12, the camera 2 obtains the image of the side surface through the first side reflector 131 and the second side reflector 132, and further, the camera 2 can obtain the image of the upper surface, the lower surface, and the side surface corresponding to the edge of the display panel 100 at the same time by image-taking for one time, without obtaining more images. Finally, by analyzing the image, defect information of the edge of the display panel 100 is obtained.
That is to say, the embodiment of the utility model provides a device for display panel edge defect detects can once get for instance through single camera 2 and acquire the image of the upper surface that the display panel 100 edge corresponds, lower surface and side simultaneously, realizes edge defect and detects, need not 2 of polyphasers and gets for instance many times, has improved detection efficiency.
Illustratively, the tilt angle of the top mirror 11 is 45 °, and the tilt angles of the bottom mirror 12, the first side mirror 131, and the second side mirror 132 are 135 °.
The edge defects of the display surface can be cracks, crazes, scratches, cracks, and wrinkles and lacerations after wrapping black adhesive tapes.
With continued reference to fig. 1, the apparatus further comprises a support assembly 3, the support assembly 3 comprising a test station 31 and a stage 32, the stage 32 being located on the test station 31 and the camera 2 being located on the test station 31.
In the above embodiment, stage 32 may support display panel 100, and stage 31 may support stage 32.
Illustratively, the bottom of the test stand 31 has a plurality of leveling bolts 311.
It will be readily appreciated that when the display panel 100 is placed on the stage 32, the edge area is disposed protruding from the stage 32.
In this embodiment, the supporting assembly 3 further comprises a lifting mechanism 33, the lifting mechanism 33 is located on the testing platform 31, an output end of the lifting mechanism 33 is in transmission connection with the stage 32 to lift the stage 32, the camera 2 can slide on the testing platform 31 in a direction close to or far away from the stage 32, and the first side reflector 131 and the second side reflector 132 are slidably arranged on the testing platform 31 to adjust a distance between the first side reflector 131 and the second side reflector 132.
In the above embodiment, the lifting structure 33 can lift the display panels 100 with different thicknesses, so that the central axis of the display panel 100 is always perpendicular to the axial direction of the lens of the camera 2, and the top reflector 11 and the bottom reflector 12 are arranged along the axial direction of the lens of the camera 2, and at this time, the relative distances between the top reflector 11, the bottom reflector 12 and the camera 2 can be adjusted only by sliding the camera 2, so that the camera 2 can simultaneously obtain focused images of the upper surface and the lower surface of the display panel 100. Whereas the first side mirror 131 and the second side mirror 132 are slidably arranged on the test bench 31, the distance between the two first side mirror 131 and the second side mirror 132 may be adjusted so that the camera 2 is also able to simultaneously obtain focused images of the sides.
It should be noted that, through adjusting the relative position relationship between the top surface reflector 11, the bottom surface reflector 12, the side reflector group 13 and the camera 2, not only the camera 2 focuses on the three detection area of the display panel 100, but also can adapt to the focusing of the display panel 100 with different thicknesses, thereby increasing the utility model discloses an application scope.
That is, by checking the display panel 100 with the same thickness, when the adjustment of the relative positional relationship among the top mirror 11, the bottom mirror 12, the side mirror group 13, and the camera 2 is completed, the camera 2 does not need to be adjusted again after focusing. When the display panel 100 with different thickness is detected, the relative position relationship among the top reflector 11, the bottom reflector 12, the side reflector set 13 and the camera 2 needs to be adjusted again, so that the camera 2 can obtain the focused images of the upper surface, the lower surface and the side surface of the edge area of the new display panel 100 at the same time (refocusing).
The utility model discloses an among the implementation, the device still includes integrated motor (not shown), and integrated motor is connected with top surface reflecting mirror 11, bottom surface reflecting mirror 12, first side reflecting mirror 131, second side reflecting mirror 132 and camera 2 at least, removes through integrated motor control top surface reflecting mirror 11, bottom surface reflecting mirror 12, first side reflecting mirror 131, second side reflecting mirror 132 and camera 2 to focus on the adjustment, avoid artifical the regulation.
In this embodiment, the lifting structure 33 is a cylinder or an electric push rod.
In addition, the support assembly 3 further comprises a first support bracket 34 and a second support bracket 35 located on the test bench 31, the top mirror 11 and the bottom mirror 12 are arranged on the first support bracket 34 at intervals, and the first side mirror 131 and the second side mirror 132 are slidably arranged on the second support bracket 35.
In the above embodiment, the first support frame 34 may realize the support of the top surface mirror 11 and the bottom surface mirror 12. The second support bracket 35 may enable sliding support of the first side mirror 131 and the second side mirror 132.
Illustratively, the top of the second support frame 35 has two slidably arranged sliders 37, and the first side mirror 131 and the second side mirror 132 are both located on the sliders 37.
Illustratively, the support assembly 3 further comprises a third support frame 36, the third support frame 36 is located on the test bench 31, and the camera 2 is located on the third support frame 36, so as to support the camera 2.
In this embodiment, the testing platform 31 has a scale, and the scale is located on the side of the testing platform 31.
In the above embodiment, the scale can ensure that the placing accuracy is consistent in the process of placing the stage 32 on the display panels 100 in the same batch.
In an implementation manner of the present invention, the device further includes an illumination assembly 4, the illumination assembly 4 includes a support rod 41 and a lighting lamp 42, the support rod 41 is located on one side of the camera 2, and the lighting lamp 42 is located on the top of the support rod 41, so as to provide an illumination environment for the camera 2 through the illumination assembly 4.
The utility model also provides a test equipment, this test equipment include like foretell a device that is used for display panel edge defect to detect.
It will be understood by those skilled in the art that the foregoing is merely a preferred embodiment of the present invention, and is not intended to limit the invention to the particular forms disclosed, but on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. An apparatus for edge defect detection of a display panel, characterized in that the apparatus comprises a reflective assembly (1) and a camera (2);
the reflection assembly (1) comprises a top surface reflector (11) positioned at the end part of the upper surface of the display panel (100), a bottom surface reflector (12) positioned at the end part of the lower surface of the display panel (100) and a side surface reflector group (13) positioned at the side surface of the display panel (100);
an acute angle is formed between the reflecting surface of the top surface reflector (11) and the upper surface of the display panel (100), and an acute angle is formed between the reflecting surface of the bottom surface reflector (12) and the lower surface of the display panel (100);
the side reflecting mirror group (13) at least comprises a first side reflecting mirror (131) and a second side reflecting mirror (132), the reflecting surfaces of the first side reflecting mirror (131) and the second side reflecting mirror (132) are arranged in a relatively parallel and inclined manner, and the first side reflecting mirror (131) is used for reflecting the image on the side surface of the display panel (100) to the camera (2) through the second side reflecting mirror (132);
the lens axis of the camera (2) is perpendicular to the side surface of the display panel (100) and is used for receiving images of different positions of the display panel (100) reflected by the top surface reflector (11), the bottom surface reflector (12) and the side surface reflector group (13).
2. An apparatus for edge defect detection of display panels according to claim 1, characterized in that the apparatus further comprises a support assembly (3), the support assembly (3) comprising a test bench (31) and a stage (32), the stage (32) being located on the test bench (31), the camera (2) being located on the test bench (31).
3. The apparatus for edge defect detection of display panel according to claim 2, wherein the support assembly (3) further comprises a lifting mechanism (33), the lifting mechanism (33) is located on the test platform (31), an output end of the lifting mechanism (33) is in transmission connection with the platform (32) to lift the platform (32), and the camera (2) can slide on the test platform (31) in a direction close to or away from the platform (32), the first side reflector (131) and the second side reflector (132) are slidably arranged on the test platform (31) to adjust a distance between the first side reflector (131) and the second side reflector (132).
4. The apparatus of claim 3, wherein the lifting mechanism (33) is an air cylinder or an electric push rod.
5. An apparatus for edge defect inspection of display panels according to claim 3, wherein the support assembly (3) further comprises a first support frame (34) and a second support frame (35) on the test table (31), the top mirror (11) and the bottom mirror (12) being arranged on the first support frame (34) at a distance, the first side mirror (131) and the second side mirror (132) being slidably arranged on the second support frame (35).
6. An apparatus for edge defect detection of display panels according to claim 2, wherein the support assembly (3) further comprises a third support frame (36), the third support frame (36) being located on the test bench (31), the camera (2) being located on the third support frame (36).
7. The apparatus for edge defect inspection of display panel according to claim 2, wherein the test table (31) has graduated scales thereon, and the graduated scales are located on the side of the test table (31).
8. The apparatus according to any one of claims 1 to 7, further comprising an illumination assembly (4), wherein the illumination assembly (4) comprises a support rod (41) and an illumination lamp (42), the support rod (41) is located at one side of the camera (2), and the illumination lamp (42) is located at the top end of the support rod (41).
9. The apparatus according to any of claims 1-7, further comprising an integrated motor connected to at least the top mirror (11), the bottom mirror (12), the first side mirror (131), the second side mirror (132) and the camera (2), wherein the integrated motor controls the top mirror (11), the bottom mirror (12), the first side mirror (131), the second side mirror (132) and the camera (2) to move for focus adjustment.
10. A test apparatus, characterized in that the test apparatus comprises a device for edge defect detection of a display panel according to any of claims 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222399932.0U CN217688624U (en) | 2022-09-09 | 2022-09-09 | Device for detecting edge defects of display panel and test equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222399932.0U CN217688624U (en) | 2022-09-09 | 2022-09-09 | Device for detecting edge defects of display panel and test equipment |
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| Publication Number | Publication Date |
|---|---|
| CN217688624U true CN217688624U (en) | 2022-10-28 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222399932.0U Active CN217688624U (en) | 2022-09-09 | 2022-09-09 | Device for detecting edge defects of display panel and test equipment |
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| CN (1) | CN217688624U (en) |
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- 2022-09-09 CN CN202222399932.0U patent/CN217688624U/en active Active
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