A LCD screen lighting detection device

Abstract

The present invention discloses a liquid crystal screen lighting detection device, comprising: a controller; a correction platform, which can correct and position the liquid crystal screen located thereon; a first driving mechanism, which is used to drive the correction platform to a material picking position; a barcode scanner, which is used to scan the identification code of the liquid crystal screen located on the correction platform; a conduction unit, which can conduct and light up the liquid crystal screen located on its carrier; a visual detection device, which is used to take a photo of the liquid crystal screen lit on the conduction unit, and the controller can analyze the defects of the liquid crystal screen according to the photographed image of the visual detection device and generate a detection result, and can store the identification code recognized by the barcode scanner and the corresponding detection result in correspondence; a manipulator, which is used to transfer the liquid crystal screen on the correction platform located at the material picking position to the carrier of the conduction unit, and can transfer the liquid crystal screen on the carrier of the conduction unit to the unloading position. The liquid crystal screen lighting detection device can effectively solve the problems of slow liquid crystal screen detection efficiency and difficult recording of detection results.

Description

Technical Field

[0001] The present invention relates to the technical field of screen detection, and more specifically to a liquid crystal screen lighting detection device. Background Art

[0002] There are two types of C-check lighting inspection methods commonly used in LCD screen components: the first type uses a jig method, which is visually recognized and manually loaded and unloaded; the second type uses a semi-automatic machine method, which uses equipment recognition and manual loading and unloading. Therefore, there are currently problems such as high labor costs, missed judgments, low production capacity, high misjudgment rate, and no traceability.

[0003] In summary, how to effectively solve the problem of slow LCD screen detection efficiency and difficulty in recording detection results is an issue that technical personnel in this field urgently need to solve. Summary of the invention

[0004] In view of this, an object of the present invention is to provide a liquid crystal screen lighting detection device, which can effectively solve the problems of slow liquid crystal screen detection efficiency and difficulty in recording detection results.

[0005] In order to achieve the above object, the present invention provides the following technical solutions:

[0006] A liquid crystal screen lighting detection device comprises: a controller; a correction platform, capable of correcting and positioning a liquid crystal screen located thereon; a first driving mechanism, used to drive the correction platform to a material picking position; a barcode scanner, used to scan an identification code of the liquid crystal screen located on the correction platform; a conduction unit, capable of conducting and lighting up the liquid crystal screen located on its carrier; a visual inspection device, used to take a picture of the lit liquid crystal screen on the conduction unit, the controller being capable of analyzing defects of the liquid crystal screen based on the photographed image of the visual inspection device and generating a detection result, and being capable of storing the identification code recognized by the barcode scanner in correspondence with the corresponding detection result; a manipulator, used to transfer the liquid crystal screen on the correction platform located at the material picking position to the carrier of the conduction unit, and being capable of transferring the liquid crystal screen on the carrier of the conduction unit to a material unloading position.

[0007] Preferably, it also includes a vacuum adsorption platform, a second driving mechanism for driving the vacuum adsorption platform to move to a loading position, and a transfer device for transferring the liquid crystal screen on the vacuum adsorption platform to the correction platform at the loading position.

[0008] Preferably, the transfer device includes a transfer suction cup, a lifting mechanism for driving the transfer suction cup to rise and fall, and a lateral driving mechanism for driving the transfer suction cup to move from the vacuum adsorption platform to the correction platform.

[0009] Preferably, the correction platform is provided with a negative pressure adsorption port for adsorbing and fixing the corrected liquid crystal screen, and the conduction unit is provided with a negative pressure adsorption port for adsorbing and fixing the liquid crystal screen.

[0010] Preferably, the conduction unit comprises a conduction probe and a pushing device for pushing the conduction probe to be inserted or pulled out of the liquid crystal screen interface.

[0011] Preferably, it also includes a display, which is used to display the detection result and the corresponding identification code.

[0012] Preferably, a robot and a plurality of conducting units are respectively arranged on both sides of the material taking position, and the visual detection device is arranged at each conducting unit.

[0013] The present invention provides a liquid crystal screen lighting detection device. When the liquid crystal screen lighting detection device is used, a correction platform is loaded, and then a first driving mechanism drives the correction platform to a material picking position, and the correction platform corrects the position of the liquid crystal screen, and a barcode scanner scans the liquid crystal screen on the correction platform and transmits the scanning result to a controller; a manipulator transfers the liquid crystal screen on the correction platform located at the material picking position to a supporting platform of a conduction unit, and then the conduction unit turns on and lights up the liquid crystal screen on the supporting platform, a visual inspection device takes a photo of the lit liquid crystal screen and transmits the photographed image to the controller, the controller analyzes the defects of the liquid crystal screen according to the photographed image and generates a detection result, and then stores the identification code recognized by the barcode scanner in correspondence with the corresponding detection result; after the visual inspection device completes taking the photo of the image, the manipulator transfers the liquid crystal screen on the supporting platform to the unloading position.

[0014] In the above-mentioned LCD screen lighting detection equipment, the automatic detection of the LCD screen is realized through structures such as a manipulator, a visual detection device, and a conduction unit, without the need for staff operation. In addition, the detection results are stored through a barcode scanner and a controller to facilitate the subsequent understanding of the detection results of the current LCD screen at any time, so as to avoid the detection results not corresponding to the current detection screen, and ensure that the entire automatic detection is more monitorable to ensure the detection accuracy. In summary, the LCD screen lighting detection equipment can effectively solve the problems of slow LCD screen detection efficiency and difficult recording of detection results. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0016] Figure 1A schematic diagram of a top view of the structure of a liquid crystal screen lighting detection device provided in an embodiment of the present invention;

[0017] Figure 2 A schematic diagram of the isometric structure of a liquid crystal screen lighting detection device provided in an embodiment of the present invention.

[0018] The following are marked in the accompanying drawings:

[0019] Vacuum adsorption platform 1, correction platform 2, first driving mechanism 3, barcode scanner 4, conduction unit 5, visual detection device 6, manipulator 7, unloading position 8, second driving mechanism 9, transfer device 10. DETAILED DESCRIPTION

[0020] The embodiment of the present invention discloses a liquid crystal screen lighting detection device, which effectively solves the problems of low liquid crystal screen detection efficiency and difficulty in recording detection results.

[0021] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0022] See also Figure 1-Figure 2 , Figure 1 A schematic diagram of a top view of the structure of a liquid crystal screen lighting detection device provided in an embodiment of the present invention; Figure 2 A schematic diagram of the isometric structure of a liquid crystal screen lighting detection device provided in an embodiment of the present invention.

[0023] In a specific embodiment, this embodiment provides a liquid crystal screen lighting detection device, which specifically includes a controller, a correction platform 2, a first driving mechanism 3, a barcode scanner 4, a conduction unit 5, a visual detection device 6 and a manipulator 7.

[0024] The correction platform 2 can correct and position the LCD screen thereon to ensure that the position of the LCD screen on the correction platform 2 relative to the correction platform 2 can be determined. The specific correction form of the correction platform 2 is mainly related to the positioning reference point on the LCD screen, such as taking the two boundaries of the LCD screen that are set at right angles to each other as the positioning reference boundaries, that is, two limiting walls that are used to respectively abut against the two positioning reference boundaries of the LCD screen can be set on the correction platform 2, and two groups of pushing mechanisms are set to push the LCD screen respectively, so that the two limiting walls are respectively abutted against the positioning reference boundaries corresponding to the LCD screen, so as to perform horizontal positioning of the LCD screen. Of course, other positioning methods can also be used, and the specific structure of the correction platform 2 can also refer to the prior art.

[0025] The first driving mechanism 3 is used to drive the correction platform 2 to the material picking position to facilitate the manipulator 7 to pick up the material. The first driving mechanism 3 can be a conveyor belt device or a telescopic cylinder, and can be specifically set according to needs. Considering the need to continuously detect a large number of LCD screens, the first driving mechanism 3 is preferably able to drive the correction platform 2 to the material picking position, and after the manipulator 7 picks up the material, it should also be able to transport the correction platform 2 to the loading position to facilitate the transportation of the next LCD screen.

[0026] The barcode scanner 4 is used to scan the identification code of the LCD screen on the correction platform 2. Specifically, it can be fixed at the material picking position to scan when the manipulator 7 picks up the material. It can also be fixed on the correction platform 2 to move with the correction platform 2 to fully ensure the recognition time and thus the recognition accuracy. It can also be used as a detector to indicate that the LCD screen has been placed on the correction platform 2 when the identification code of the correction platform 2 is detected. It should be noted that the specific structure of the barcode scanner 4 is not limited here, and can refer to the prior art. Specifically, it should also be selected according to the type of identification code. Here, the identification code is preferably a two-dimensional code, and the barcode scanner 4 is a two-dimensional code scanner.

[0027] The conduction unit 5 can conduct and light up the liquid crystal screen located on its carrier. The carrier of the conduction unit 5 carries the liquid crystal screen, and the conduction unit 5 has a power supply module. The power supply module supplies power to the liquid crystal screen to light up the liquid crystal screen, so as to detect whether there are bad pixels on the liquid crystal screen. It should be noted that how the power supply module supplies power to the liquid crystal screen should be set according to the corresponding setting of the power receiving module of the liquid crystal screen, and wireless power supply can be performed. Considering that the power receiving module of the current liquid crystal screen is mainly a plug-in interface, based on this, it is preferred that the conduction unit 5 here includes a conduction pin and a pushing device, wherein the conduction pin is used to connect with the power supply, that is, it is energized, and the pushing device is used to push the conduction probe to be plugged in and out of the liquid crystal screen interface, wherein plugging and unplugging means that the pushing device can not only push the conduction probe into the liquid crystal screen interface to power the liquid crystal screen; it can also push the conduction probe out of the liquid crystal screen interface to power off the liquid crystal screen. The pushing device can use a telescopic cylinder with a telescopic end fixedly connected to the conduction probe.

[0028] The visual inspection device 6 is used to take a picture of the LCD screen lit on the conduction unit 5 so that the display status of the LCD screen can be displayed in the photographed image, and the controller can analyze the defects of the LCD screen according to the photographed image of the visual inspection device 6 and generate a detection result. For example, the bad pixels of the LCD screen, that is, the display area, can be analyzed according to the photographed image. The part with color difference and large difference is considered to be a bad area. The specific analysis method can also refer to the prior art and will not be repeated here. The controller should also be provided with a storage unit to store the identification code recognized by the scanner 4 and the corresponding detection result, so that the corresponding detection result can be queried in the storage unit of the controller later through the identification code of the LCD screen. In order to facilitate the staff to view, a display is preferably provided here, and the display is used to display the detection results and the corresponding identification code, so that the monitoring personnel can check the detection status of the LCD screen lighting detection device in time.

[0029] The manipulator 7 is used to transfer the LCD screen on the correction platform 2 at the material picking position to the supporting platform of the conduction unit 5, and can transfer the LCD screen on the supporting platform of the conduction unit 5 to the unloading position 8, so as to complete the detection. The manipulator 7 can be a six-axis manipulator, and the manipulator 7 can take the LCD screen by grabbing or sucking. Considering the characteristics of the LCD screen, it is preferred that the manipulator 7 has a vacuum suction cup for sucking the LCD screen. The specific structure of the manipulator 7 can also refer to the prior art. It should be noted that the unloading position 8 is generally also provided with a discharging device for outputting the LCD screen, and the discharging device is generally a conveyor belt.

[0030] In this embodiment, when the LCD screen lighting detection device is applied, the correction platform 2 is loaded, and then the first driving mechanism 3 drives the correction platform 2 to the material picking position, and the correction platform 2 corrects the position of the LCD screen, and the barcode scanner 4 scans the LCD screen on the correction platform 2, and transmits the scanning result to the controller; the manipulator 7 transfers the LCD screen on the correction platform 2 located at the material picking position to the carrier platform of the conduction unit 5, and then the conduction unit 5 conducts and lights up the LCD screen on the carrier platform, the visual inspection device 6 takes a photo of the lit LCD screen and transmits the photographed image to the controller, the controller analyzes the defects of the LCD screen according to the photographed image and generates a detection result, and then stores the identification code recognized by the barcode scanner 4 and the corresponding detection result in correspondence; after the visual inspection device 6 completes the image photography, the manipulator 7 transfers the LCD screen on the carrier platform to the unloading position 8. Through the above-mentioned LCD screen lighting detection device, through the structures such as the manipulator 7, the visual inspection device 6 and the conduction unit 5, the LCD screen can be automatically inspected without the need for staff operation. In addition, the detection result storage is realized through the barcode scanner 4 and the controller, so as to facilitate the later understanding of the detection result of the current LCD screen at any time, so as to avoid the detection result not corresponding to the current detection screen, and ensure that the entire automatic detection is more monitorable to ensure the detection accuracy. In summary, the LCD screen lighting detection device can effectively solve the problems of slow LCD screen detection efficiency and difficult detection result recording.

[0031] Furthermore, considering that the correction platform 2 only takes a short time to correct and the LCD screen is not well protected during movement, it is not suitable for long-distance transportation. Based on this, it is preferably also provided with a vacuum adsorption platform 1, a second driving mechanism 9 for driving the vacuum adsorption platform 1 to move to a loading position, and a transfer device 10 for transferring the LCD screen on the vacuum adsorption platform 1 to the correction platform 2 at the loading position. The LCD screen can be fixed by the vacuum adsorption platform 1 and can effectively ensure the mobile stability of the LCD screen. This is suitable for long-distance transportation and convenient for docking with other equipment. The conveying directions of the second driving mechanism 9 and the first driving mechanism can be the same or vertically arranged. The second driving mechanism 9 can adopt a telescopic cylinder or a conveyor belt.

[0032] The transfer device 10 can use a manipulator 7, but considering that the conveying requirements are not high, in order to avoid high costs and complex structures, based on this, the transfer device 10 preferably includes a transfer suction cup, a lifting mechanism for driving the transfer suction cup to rise and fall, and a transverse driving mechanism for driving the transfer suction cup to move from the vacuum adsorption platform 1 to the correction platform 2. Specifically, when the LCD screen needs to be transferred, the transverse driving mechanism drives the transfer suction cup to move to the bottom of the vacuum adsorption platform 1, the lifting mechanism drives the transfer suction cup to descend to counter the LCD screen, and then adsorbs and fixes the LCD screen, the lifting mechanism drives the transfer suction cup to rise, so as to drive the LCD screen to rise, and under the drive of the transverse driving mechanism, it moves to the top of the correction platform 2, the lifting mechanism drives the transfer suction cup to descend to place the LCD screen steadily on the correction platform 2, releases the suction cup and drives the transfer suction cup to rise through the lifting mechanism to complete the transfer. It should be noted that when the driving directions of the first driving mechanism 3 and the second driving mechanism 9 are arranged vertically, the transfer device 10 should also be provided with a rotating mechanism that drives the transfer suction cup to rotate 90 degrees. The rotating mechanism can drive the transfer suction cup to rotate after the lifting mechanism drives the LCD screen to rise.

[0033] Furthermore, considering that when the first driving mechanism 3 drives the correction platform 2 to move, the shaking of the correction platform 2 easily causes the LCD screen to shift, and when the manipulator 7 just contacts the LCD screen, the vibration of the manipulator 7 itself also causes the LCD screen to shift, based on this, it is preferred that the correction platform 2 is provided with an adsorption port for adsorbing and fixing the corrected LCD screen. Correspondingly, it is preferred that the conduction unit 5 is provided with a negative pressure adsorption port for adsorbing and fixing the LCD screen.

[0034] In order to improve the detection efficiency, it is preferred that a manipulator 7, a conduction unit 5 and a visual inspection device 6 are respectively provided on both sides of the material taking position. Furthermore, in order to improve the use efficiency of each component. Considering that the LCD screen stays on the conduction unit 5 for a long time, based on this, it is preferred that a manipulator 7 and multiple conduction units 5 are respectively provided on both sides of the material taking position. Specifically, three conduction units 5 can be provided. It should be noted that each conduction unit 5 should be provided with a visual inspection device 6.

[0035] The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same or similar parts between the various embodiments can be referenced to each other.

[0036] The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A liquid crystal screen lighting detection device, characterized in that: include: Controller; A correction platform capable of correcting the positioning of the LCD screen thereon; A first driving mechanism, used for driving the correction platform to a material taking position; A code scanner, used to scan the identification code of the liquid crystal screen located on the correction platform; The conduction unit can conduct and light up the liquid crystal screen located on its carrier; A visual inspection device, used to take a photo of the LCD screen lit on the conduction unit, the controller can analyze the defects of the LCD screen and generate a detection result based on the photographed image of the visual inspection device, and can store the identification code recognized by the scanner in correspondence with the corresponding detection result; The manipulator is used to transfer the liquid crystal screen on the correction platform located at the material-picking position to the bearing platform of the conduction unit, and can transfer the liquid crystal screen on the bearing platform of the conduction unit to the unloading position; it also includes a vacuum adsorption platform, a second driving mechanism for driving the vacuum adsorption platform to move to the loading position, and a transfer device for transferring the liquid crystal screen on the vacuum adsorption platform to the correction platform at the loading position; the transfer device includes a transfer suction cup, a lifting mechanism for driving the transfer suction cup to rise and fall, and a horizontal mechanism for driving the transfer suction cup to move from the vacuum adsorption platform to the correction platform. Toward driving mechanism; the correction platform is provided with a negative pressure adsorption port for adsorbing and fixing the corrected LCD screen, and the conduction unit is provided with a negative pressure adsorption port for adsorbing and fixing the LCD screen; the conduction unit includes a conduction probe and a pushing device for pushing the conduction probe to be inserted and pulled out of the LCD screen interface; the correction platform is provided with two limiting walls for respectively abutting against two positioning reference boundaries of the LCD screen, and two groups of pushing mechanisms are provided for respectively pushing the LCD screen so that the two limiting walls can respectively abut against the positioning reference boundaries corresponding to the LCD screen to achieve positioning of the LCD screen.

2. The LCD lighting detection device according to claim 1, characterized in that: It also includes a display, which is used to display the detection result and the corresponding identification code.

3. The LCD lighting detection device according to claim 2, characterized in that: A manipulator and a plurality of conducting units are respectively arranged on both sides of the material taking position, and the visual detection device is arranged at each conducting unit.

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