Full-automatic laminating equipment and method for curved screen panel and storage medium

Abstract

The invention relates to a full-automatic laminating device and method for a curved screen panel and a storage medium. The equipment comprises a plurality of stations including feeding, pretreatment, laminating, finished product detection and discharging. On the feeding station, the curved screen panels to be attached are sequentially conveyed to the pretreatment station through the automatic material taking mechanical arm, surface cleaning is carried out so as to remove dust and impurities, and it is ensured that the subsequent attaching process is smoothly carried out. After assembly is completed, the products enter a finished product detection station, defect detection is conducted on the surfaces of the products, and high-precision detection equipment is arranged for image collection and defect recognition. And according to a detection result, the system marks defects through a defect correction device, and classifies the panel. And finally, the material taking mechanical arm conveys different types of curved screens to the corresponding discharging channels, effective sorting is conducted, and the quality consistency and reliability of the subsequent manufacturing link are ensured. According to the design of the equipment, the production efficiency and the product quality control level are greatly improved, and the requirements of the modern manufacturing industry for high precision and high consistency are met.

Description

Technical Field

[0001] The present invention belongs to the technical field of display screen assembly, and in particular relates to a fully automatic bonding device, method and storage medium for a curved screen panel. Background Art

[0002] In the current technological environment, with the widespread use of electronic devices, the advancement of display technology is particularly important. Traditional straight screen displays have been gradually replaced by curved screens, which have been favored by the market for their wider viewing angles and more immersive visual experience. Curved screens are commonly used in devices such as TVs, mobile phones and computer monitors, especially in high-end products.

[0003] In the current mobile phone manufacturing industry, curved screens are highly favored for their unique visual effects and elegant designs. However, the assembly process of curved screens requires not only high-precision mechanical alignment, but also strict control of screen quality in multiple links. The existing technology usually conducts quality inspection after assembly. The types of defective products detected include: poor edge alignment, uneven pressing, bubbles, air tightness, and poor flatness. The lack of a corresponding mechanism to control the defective rate leads to a high defective rate. Defective products not only increase production costs, but also affect the brand's market competitiveness and damage the consumer's experience.

[0004] In view of the above situation, it is urgent to develop an integrated and automated real-time detection system for display panels. The system is integrated in the display panel bonding equipment to achieve comprehensive monitoring of the curved screen assembly process, fundamentally improve product quality, reduce defective rate, and improve production efficiency. Summary of the invention

[0005] In order to solve the defect of the above-mentioned prior art that the real-time monitoring of the screen during the assembly process is relatively lacking, the present invention proposes a fully automatic bonding device, method and storage medium for curved screen panels.

[0006] The technical solution adopted by the present invention is as follows: A fully automatic bonding device for curved screen panels, comprising a frame, on which a main control unit and a plurality of module components are arranged, for completing a process flow of testing and assembling the curved screen panels, comprising: The loading station includes two loading channels and a loading box, which are used to store and load the curved screen panels and frames respectively; A pre-treatment station is used to perform defect detection and pre-treatment on the curved screen panel before assembling the curved screen panel; The laminating station is used to realize the gluing, alignment, bonding and curing processes of the curved screen panel; Finished product inspection station, used to evaluate the edge alignment, lamination uniformity, bubbles, air tightness and flatness of the assembled curved screen panel, and to classify good and defective products; The unloading station includes three unloading channels and unloading boxes, which are used to unload finished products with different defect types; A robotic arm device is used to grab the curved screen panel and move it to the next workstation.

[0007] Furthermore, the pre-treatment station includes: The first detection device is used for initially detecting the dust particle size of the curved screen panel; High-pressure purge device, used for primary treatment of dust particles on the surface of the curved screen panel; The second detection device is used to re-check the dust particle size of the curved screen panel; The ultrasonic cleaning device is used for secondary treatment of dust particles on the surface of the curved screen panel.

[0008] Furthermore, the main control unit controls the first detection device to be normally open, and controls the high-pressure purge device, the ultrasonic cleaning device and the second detection device to be normally closed; When the curved screen panel is transferred to the pre-processing station, the first detection device obtains image information of the surface of the curved screen panel and transmits it to the main control unit to determine the diameter and density of particle impurities on the surface; If the density of visible particles is less than the standard value, it will directly enter the next station; If the density of visible particles is greater than the standard value, turn on the high-pressure purge device; The high-pressure purge device uses compressed air to purge the particle impurities on the surface of the curved screen panel. After the purge is completed, the second detection device obtains the particle impurity information on the surface of the curved screen panel again; If the density of visible particles is less than the standard value, it will directly enter the next station; If the density of visible particles is greater than the standard value, turn on the ultrasonic cleaning device; The ultrasonic cleaning device performs secondary processing on the curved screen panel through laser. After the ultrasonic processing is completed, the second detection device obtains the particle impurity information on the surface of the curved screen panel again; If the density of visible particles is less than the standard value, it will directly enter the next station; If the density of visible particles is greater than the standard value, continue to treat the curved screen panel with ultrasound.

[0009] Furthermore, the laminating station includes: The glue coating device is used to evenly apply a proper amount of optical glue on the edge of the curved screen panel to prevent excess flow out. When applying glue, ensure that the glue evenly covers the entire edge; Alignment device, used to align the display screen with the frame, ensuring that the curved screen panel is aligned with each edge of the frame to avoid tilting; The bonding device bonds the curved screen panel and the frame together by applying pressure evenly, avoiding the generation of bubbles and applying pressure to ensure good contact; The curing device is used to irradiate the assembled display screen with UV light. The curing time is in accordance with the glue manual, which is usually 30 seconds to several minutes. The subsequent process can be carried out only after the glue is completely cured.

[0010] Furthermore, the finished product inspection station includes: Level 1 flaw detection device, used to detect various defects on curved screen panels; Defect correction device, used to correct and eliminate various defects of the curved screen panel detected; Secondary flaw detection device, used to re-inspect various defects of curved screen panels; Defect marking device, which classifies and marks curved screen panels based on different defect types; The defect classification device classifies the curved screen panels into different levels based on different defect degrees.

[0011] Further, the main control unit controls the primary flaw detection device to be normally open, and controls the defect correction device, the secondary flaw detection device, the secondary flaw detection device, the defect marking device, and the defect classification device to be normally closed; When the curved screen panel is transferred to the finished product inspection station, the first-level flaw detection device collects image data on the surface of the curved screen panel and transmits it to the main control unit. Based on the image processing algorithm, the type and degree of defects on the surface of the curved screen panel are identified; The main control unit controls the defect correction device to start; The defect correction device corrects and eliminates the edge alignment, lamination uniformity, air tightness and electrostatic damage defects of the curved screen panel; The main control unit controls the secondary flaw detection device to start; The secondary flaw detection device re-inspects the type and degree of defects on the curved screen panel; The main control unit controls the marking device and the classification device to start; The marking device marks the surface of the curved screen panel according to the defect classification after re-inspection; The classification device is turned on to compare the severity of the defect with the standard value, and classify the curved screen panels into Class I, Class II and Class III products. Correspondingly, Class I products are non-defective products, Class II products are defective but do not affect subsequent use, and Class III products are defective and cannot be used normally; The material-retrieving robot arm transfers the first, second and third category products to the corresponding unloading channels respectively, and finally temporarily stores them in the unloading box.

[0012] Furthermore, the inspection items of the curved screen panel include edge alignment, lamination uniformity, air tightness and electrostatic damage, and the corresponding classification standards of the curved screen panel are: Edge alignment: Category I products: edge alignment error ≤ 0.2 mm (image processing detection shows that the alignment error is within this range); Category II products: edge alignment error > 0.2mm and ≤ 0.5mm; Category III products: edge alignment error>0.5mm; Pressing uniformity: Category I products: Lamination uniformity difference ≤ 0.1mm (thickness of different areas is compared by image); Category II products: Pressing uniformity difference > 0.1mm and ≤ 0.3mm; Category III products: Pressing uniformity difference > 0.3mm; Airtightness: Category I products: qualified air tightness, no air leakage (bubbles or defects detected by image, the number of bubbles is 0); Category II products: Level 1 air leakage standard (a small number of bubbles are found in the image detection, and the number of bubbles is ≤5); Category III products: Level II air leakage standard (multiple bubbles found in image detection, the number of bubbles > 5); Static Electricity Damage: Category I products: no electrostatic damage (image detection did not find any traces of electrostatic damage); Category II products: Level 1 electrostatic damage standard is slight electrostatic damage (image detection shows a small amount of electrostatic damage, but it does not affect the function); Category III products: Level 2 electrostatic damage standard is relatively obvious electrostatic damage (image detection shows severe electrostatic damage that affects functionality).

[0013] Furthermore, it also includes one or more processors and a storage device, wherein the storage device is used to store one or more programs, and the one or more programs are executed by the one or more processors.

[0014] A fully automatic bonding method for curved screen panels is implemented based on the bonding equipment and is used to achieve comprehensive quality monitoring of the curved screen panel assembly process and reduce the defective rate.

[0015] A computer-readable storage medium stores a computer program, which, when executed by a processor, implements the fully automatic bonding method for curved screen panels as described above.

[0016] In summary, due to the adoption of the above technical solution, the beneficial effects of the present invention are: In general, compared with the prior art, the fully automatic bonding equipment, method and storage medium of the curved screen panel provided by the present invention. Compared with the prior art, the fully automatic bonding equipment of the curved screen panel provided by the present invention realizes efficient and accurate detection and assembly of the curved screen panel by designing an intelligent system with multiple stations working together. The equipment covers multiple stations such as loading, pretreatment, assembly and unloading. Before the curved screen panel is assembled, in the loading station, the curved screen panel to be bonded is temporarily stored by an intelligent loading mechanism, and is sent to the pretreatment station in sequence with the help of an automated material-taking robot arm. The pretreatment station adopts a multi-level detection system to clean the surface of the curved screen to remove dust and particulate matter to avoid interference of impurities with the subsequent bonding process. After the cleaned curved screen panel is assembled, it enters the finished product inspection station to perform defect detection and defect correction on its surface respectively. These two stations are equipped with high-precision detection equipment for image acquisition and defect recognition. Based on the detection results, the system marks the curved screen panel through a defect correction device and classifies and processes it according to the type and degree of defects. Afterwards, the retrieving robot arm delivers different types of curved screens to the corresponding unloading channels for effective sorting to ensure quality consistency and reliability in subsequent manufacturing links. The automated display panel real-time detection system is integrated into the display panel bonding equipment to achieve full-cycle monitoring of the curved screen assembly process, achieving fully automated and efficient bonding of curved screen panels, significantly improving production efficiency and product quality control, reducing defective rates, and meeting the modern manufacturing industry's needs for high precision and high consistency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The present invention will now be described by way of example with reference to the accompanying drawings, in which: Figure 1 Provides an architecture diagram of each functional component in a bonding device for an embodiment of the present invention; Figure 2 Provide a system architecture diagram in a pre-processing station for an embodiment of the present invention; Figure 3 A system architecture diagram in a finished product inspection station is provided for an embodiment of the present invention. DETAILED DESCRIPTION

[0018] To make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all of the embodiments. The components of the embodiments of the present application usually described and shown in the drawings here can be arranged and designed in various configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the application claimed for protection, but merely represents the selected embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without making creative work belong to the scope of protection of the present application.

[0019] Example 1 See also Figure 1 , Figure 1 The present invention provides an embodiment of the present invention with an architecture diagram of each functional component in the bonding device. This embodiment can be applied to the process of assembling curved screen panels during the production of mobile phones, and to perform real-time detection and correction of defects on curved screen panels throughout the entire cycle to reduce the defective rate of the product. The method can be performed by a fully automatic bonding device for curved screen panels, and the bonding device includes a frame, and a main control unit and several module components are arranged on the frame, which are used to complete the process of detecting and assembling curved screen panels, which includes: The loading station includes two loading channels and a loading box, which are used to store and load the curved screen panels and frames respectively; A pre-treatment station is used to perform defect detection and pre-treatment on the curved screen panel before assembling the curved screen panel; The laminating station is used to realize the assembly processes of gluing, alignment, bonding and curing of curved screen panels; Finished product inspection station, used to evaluate the edge alignment, lamination uniformity, bubbles, air tightness and flatness of the assembled curved screen panel, and to classify good and defective products; The unloading station includes three unloading channels and unloading boxes, which are used to unload finished products with different defect types; A robotic arm device, used to grab the curved screen panel to the next station; One or more processors and a storage device, wherein the storage device is used to store one or more programs, and the one or more programs are executed by the one or more processors.

[0020] In this embodiment, it also includes a lifting mechanism. After the material is manually loaded into the upper material box, the lifting mechanism lifts it to the grabbing height of the material picking robot arm. The material picking robot arm grabs the curved screen panel and transports it to the pre-treatment station through the loading channel. The grabbing frame is transported to the bonding station through the loading channel. The loading channel adopts a belt transportation mechanism. In the pre-treatment station, the curved screen panel is inspected for defects (dust particles) and purged and ultrasonically treated. After the treatment is completed, the material transfer robot arm transfers the curved screen panel to the bonding station for gluing, alignment, bonding and The curing process completes the assembly of the curved screen panel and the frame. The finished product after assembly is transferred to the finished product inspection station by the material transfer robot arm, which is used to detect and process the edge alignment, pressing uniformity, bubbles, air tightness and flatness of the curved screen panel after assembly in real time, and classify the processed good and defective products. According to different defect types, the defect marking device is controlled to mark the surface, and each electrode sheet is classified according to its defect degree, and the material picking robot arm is controlled to transfer the finished products of different classifications to the corresponding unloading channels.

[0021] Particle impurities on the surface of the curved screen panel can cause light scattering, affect the display effect, blur or distort the picture, and reduce the final visual effect of the display screen. In addition, particles may hinder the normal operation of the touch sensor, resulting in insensitive or ineffective touch response. Therefore, in the present invention, a pre-treatment station is provided to clean the dust and particle impurities on the surface of the curved screen panel before assembling it with the frame, ensuring that the cleanliness of the surface of the curved screen panel meets the standard for subsequent assembly.

[0022] In this embodiment, refer to Figure 2 , the pre-treatment station includes: The first detection device is used for initially detecting the dust particle size of the curved screen panel; High-pressure purge device, used for primary treatment of dust particles on the surface of the curved screen panel; The second detection device is used to re-check the dust particle size of the curved screen panel; The ultrasonic cleaning device is used for secondary treatment of dust particles on the surface of the curved screen panel.

[0023] Optionally, both the first detection device and the second detection device use a particle detection instrument, which can accurately count the number of visible particles per square meter of the surface and display the detection results in real time, analyze the particle size distribution, and evaluate the potential impact of particles of different sizes on the screen.

[0024] The test results are transmitted to the main control unit in real time to form data records for subsequent statistical analysis.

[0025] Optionally, the high-pressure purge device uses a compressed air purge device, and the main control unit determines whether to turn on the purge device based on the feedback of the first detection device. If turned on, compressed air blows the surface of the curved screen panel through the nozzle to blow the particle impurities away from the surface of the curved screen panel. The compressed air purge device is used to achieve primary treatment of the particle impurities on the surface of the curved screen panel.

[0026] Optional, ultrasonic cleaning device uses ultrasonic cleaning machine, which uses high-frequency sound waves to generate tiny bubbles in the liquid. The strong shock wave generated when the bubbles explode can effectively remove stubborn particles on the surface. When in use, if the dust particles still exceed the standard after the high-pressure purge device is used, the main control unit controls the ultrasonic cleaning device to start. Perform secondary treatment on the particle impurities on the surface of the curved screen panel to ensure that the particle impurities are reduced to the qualified standard. Optionally, the main control unit uses an industrial-grade computer with powerful processing capabilities and stability. It is the core of the entire pre-processing station and is responsible for the following functions: Data reception and processing: Receive data from the first detection device and the second detection device in real time, and perform analysis and judgment.

[0027] Standard value comparison: Compare the test results with the preset standard values. For example, if the particle standard on the display surface requires no more than 100 visible particles per square meter, determine whether it is necessary to start a high-pressure purge or ultrasonic cleaning device.

[0028] Control logic: Set the control logic to determine the start time and sequence of each processing step to ensure that the surface dust particles and impurities of the curved screen panel meet the standards before entering the next station.

[0029] Status monitoring and alarm: Monitor the working status of each device in real time and issue an alarm in case of abnormal conditions to ensure the safety and efficiency of the production process.

[0030] The specific implementation process is as follows: The main control unit is initialized, and the main control unit controls the first detection device to be normally open to ensure that it can obtain information at any time; controls the high-pressure purge device, the ultrasonic cleaning device and the second detection device to be normally closed to save energy and avoid misoperation; When the curved screen panel is transferred to the pre-processing station, the first detection device obtains the number of visible particles per square meter on the surface of the curved screen panel and transmits it to the main control unit, which analyzes the image information; If the density of visible particles is less than the standard value, it will directly enter the next station; If the density of visible particles is greater than the standard value, turn on the high-pressure purge device; The high-pressure blowing device uses compressed air to blow the surface of the curved screen panel to remove dust particles. After the blowing is completed, the second detection device again obtains the particle impurity information on the surface of the curved screen panel; The main control unit analyzes data from the second detection device; If the density of visible particles is less than the standard value, it will directly enter the next station; If the density of visible particles is greater than the standard value, turn on the ultrasonic cleaning device; The ultrasonic cleaning device performs secondary processing on the curved screen panel through laser. After the ultrasonic processing is completed, the second detection device obtains the particle impurity information on the surface of the curved screen panel again; If the density of visible particles is less than the standard value, it will directly enter the next station; If the density of visible particles is greater than the standard value, continue to treat the curved screen panel with ultrasound.

[0031] Since it is very difficult to completely remove the particle impurities on the curved screen panel in theory and almost impossible in practice, the present invention performs cyclic detection and multiple cleaning of the dust and impurity particles on the surface of the curved screen panel to minimize the number of dust and impurities to an acceptable standard value level.

[0032] In this embodiment, the laminating station includes: The glue coating device uses an automated spraying system and is equipped with a high-precision nozzle, which can automatically adjust the spraying angle and glue flow rate according to the shape of the edge of the curved screen panel. The glue is stored in a sealed tank, and a pressure pump is used to transport the glue to the nozzle. The spraying amount is monitored by a sensor to ensure that the glue is evenly covered on the edge.

[0033] The alignment device is used to align the display screen with the frame to ensure that the curved screen panel and each edge of the frame are aligned to avoid tilting; optionally, the alignment device uses a laser alignment system combined with image recognition technology to automatically identify the edges of the curved screen panel and the frame. By adjusting the position of the robotic arm, the edge position of the screen and the frame is perfectly aligned.

[0034] The bonding device bonds the curved screen panel and the frame together by applying pressure evenly, avoiding bubbles, applying pressure, and ensuring good contact; optionally, the bonding device uses a pressure-controlled pressing system, which applies pressure evenly to the contact surface of the curved screen panel and the frame by setting a predetermined pressure value. This process can be adjusted by real-time monitoring of the pressure sensor to ensure good contact.

[0035] The curing device is used to irradiate the assembled display screen with UV light, following the curing time specified in the glue manual (usually 30 seconds to several minutes) to ensure that the glue is fully cured before proceeding with the subsequent process. Optionally, the curing device uses a high-efficiency UV lamp and is equipped with a light intensity sensor to monitor the intensity and duration of UV light exposure. The system is programmable to automatically adjust the exposure time of the UV lamp according to the curing time of different glues.

[0036] Subsequent processes include: Cable connection: Connect the display cable to the motherboard accurately and make sure the socket is stable. Check for loose connections and poor contact.

[0037] Assemble other components: Install cameras, sensors, etc., making sure they do not interfere with the display.

[0038] In this embodiment, please refer to Figure 3 The finished product inspection station includes: The first-level flaw detection device performs preliminary inspections on various defects of the curved screen panel, including edge alignment, lamination uniformity, airtightness, and electrostatic damage. Optionally, a high-resolution industrial camera and laser rangefinder are used. The camera captures the image of the curved screen panel, and the laser rangefinder is used to detect edge alignment, lamination uniformity, airtightness, and electrostatic damage. The camera is combined with computer vision software to analyze the image in real time and identify defective areas.

[0039] The defect correction device is used to correct and eliminate various defects detected on the curved screen panel; optionally, after receiving the defect detection result, the main control unit activates the defect correction device to process the defect. For example, for poor edge alignment, an adjustable clamp is used to ensure the accurate positioning of the screen edge during the lamination process; for uneven lamination, a hot pressing device is used to correct the lamination uniformity through heating and pressure; defects that cannot be corrected (such as airtightness and electrostatic damage) will be directly marked as defective products.

[0040] Secondary flaw detection device, re-inspects the curved screen panel to ensure the accuracy of the initial inspection; optional, machine learning-based image processing system, using high-resolution imaging equipment such as infrared cameras for re-inspection. Working principle: Re-scan the curved screen panel and use a more accurate algorithm to confirm the type and degree of defects. Send the re-inspection results to the main control unit for subsequent processing.

[0041] Defect marking device, classifies and marks the curved screen panel based on different defect types; optional equipment types of defect marking device: laser marking machine and robotic arm. Function: Classifies and marks the electrode sheets based on different defect types. Working principle: The main control unit controls the defect marking device to mark the surface of the electrode sheet according to the analysis results of the defect detection device. The marking content includes the defect type and location, which is convenient for subsequent processing and tracing.

[0042] The defect classification device classifies the curved screen panels according to the different defect levels. The classification system is combined with artificial intelligence algorithms. By establishing a defect database, the defects detected in real time are compared with the standard values ​​in the database and automatically classified into Class I, Class II or Class III.

[0043] Software part: Operating system: Use real-time operating system (RTOS) to ensure the real-time performance and stability of the system.

[0044] Image processing software: Image processing library with integrated deep learning algorithms for defect identification.

[0045] Database management system: stores and manages test data, and supports data query and analysis functions.

[0046] Advantages of the system High degree of automation: fully automatic detection is achieved through robotic arms and automatic flaw detection devices, reducing manual intervention.

[0047] High detection accuracy: Advanced image processing and machine learning technologies are used to ensure high accuracy in defect identification.

[0048] Real-time monitoring and feedback: The system monitors the inspection process in real time, and promptly feeds back defect information to improve production efficiency.

[0049] Data-supported decision-making: Through data analysis, it helps companies identify quality issues and optimize production processes to reduce scrap rates.

[0050] Specific implementation details of the workflow: The main control unit is responsible for the coordination and control of the entire system and controls the switch status of each flaw detection device. During the detection process, the main control unit sets the primary flaw detection device to the normally open state, and the defect correction device, secondary flaw detection device, defect marking device and defect classification device to the normally closed state to ensure that they are activated only when needed. Testing process: The curved screen panel is sent to the inspection station: The curved screen panel is automatically transferred to the finished product inspection station through the conveying system, ready for the first inspection.

[0051] Level 1 flaw detection: Image acquisition: The first-level flaw detection device uses a high-resolution camera to take all-round photos of the curved screen panel surface to obtain image data.

[0052] Defect identification: Image data is transmitted to the main control unit, which identifies the type and degree of defects on the curved screen surface based on advanced image processing algorithms.

[0053] Defect Correction: The main control unit controls the defect correction device to start and perform automatic correction processing.

[0054] Correction items: Edge alignment: The edge alignment error is measured by sensors and adjusted dynamically.

[0055] Pressing uniformity: Use pressure sensors to monitor the pressing conditions of each area to ensure uniformity.

[0056] Air tightness: Use special equipment to test air tightness and detect whether there is any leakage.

[0057] Electrostatic damage: Use image analysis to determine whether there is electrostatic damage and repair it.

[0058] Second level flaw detection: The main control unit controls the secondary flaw detection device to start and conduct re-inspection.

[0059] The secondary flaw detection device once again conducts a detailed inspection of the defects of the curved screen to ensure the accuracy and completeness of the defects.

[0060] Defect marking and classification: Marking device: The main control unit controls the marking device to start, and marks the surface of the curved screen according to the re-inspection results to identify the defect location and type.

[0061] Classification device: According to the severity of the defect, the curved screen is divided into three categories by comparing it with the standard value: Class I products: free from defects and meeting all standards.

[0062] Category II products: have defects, but do not affect subsequent use.

[0063] Category 3 products: defective and cannot be used normally.

[0064] Material collection and unloading: Based on the classification results, the material-retrieving robot arm transfers the first, second and third category products to the corresponding unloading channels respectively, and finally temporarily stores them in the unloading box for subsequent processing or shipment.

[0065] Category III products: obvious electrostatic damage (image detection shows severe electrostatic damage, affecting functionality).

[0066] Testing standards The test items and corresponding classification standards are as follows: Edge alignment: Category I products: edge alignment error ≤ 0.2 mm.

[0067] Category II products: edge alignment error > 0.2 mm and ≤ 0.5 mm.

[0068] Category III products: edge alignment error > 0.5 mm.

[0069] Pressing uniformity: Category I products: Pressing uniformity difference ≤ 0.1 mm.

[0070] Category II products: Pressing uniformity difference > 0.1 mm and ≤ 0.3 mm.

[0071] Category III products: Difference in pressing uniformity > 0.3 mm.

[0072] Airtightness: Category I products: qualified air tightness, no air leakage (number of bubbles = 0).

[0073] Category II products: Level 1 leakage standard is slight leakage (number of bubbles ≤ 5).

[0074] Category III products: Level 2 leakage standard is obvious leakage (number of bubbles > 5).

[0075] Static Electricity Damage: Category 1 products: no electrostatic damage (no obvious scratches and color changes).

[0076] Category II products: Level 1 electrostatic damage standard is slight electrostatic damage (visible but does not affect functionality).

[0077] Category III products: Level 2 electrostatic damage standard is severe electrostatic damage (obvious scratches or color changes that affect visual effects).

[0078] Data Records: The results of each test will be automatically recorded in the database, including test time, test results, defect type, treatment measures and other information.

[0079] Used for subsequent quality tracking and analysis.

[0080] Data Analysis: The system will generate quality reports regularly, analyze the inspection data, identify common defect types and frequencies, and help improve the production process.

[0081] Example 2 A fully automatic bonding method for curved screen panels is implemented based on the bonding equipment, which is used to achieve comprehensive quality monitoring of the curved screen panel assembly process, improve the qualified rate of curved screen panels and reduce production costs through comprehensive quality inspection and defect correction processes. With the implementation of the system, enterprises will be able to significantly improve product quality and enhance market competitiveness.

[0082] Embodiment 3: The computer storage medium of the embodiment of the present invention can adopt any combination of one or more computer-readable media. The computer-readable medium can be a computer-readable signal medium or a computer-readable storage medium. The computer-readable storage medium can be, for example, but not limited to, an electrical, magnetic, optical, electromagnetic, infrared, or semiconductor system, device or device, or any combination of the above. More specific examples (non-exhaustive list) of computer-readable storage media include: an electrical connection with one or more wires, a portable computer disk, a hard disk, a random access memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber, a portable compact disk read-only memory (CDROM), an optical storage device, a magnetic storage device, or any suitable combination of the above. In this document, a computer-readable storage medium can be any tangible medium containing or storing a program, which can be used by an instruction execution system, device or device or used in combination with it.

[0083] Computer-readable signal media may include data signals propagated in baseband or as part of a carrier wave, which carry computer-readable program code. Such propagated data signals may take a variety of forms, including but not limited to electromagnetic signals, optical signals, or any suitable combination of the above. Computer-readable signal media may also be any computer-readable medium other than a computer-readable storage medium, which may send, propagate, or transmit a program for use by or in conjunction with an instruction execution system, apparatus, or device.

[0084] Program code embodied on a computer readable medium may be transmitted using any appropriate medium, including but not limited to wireless, wireline, optical fiber cable, RF, etc., or any suitable combination of the foregoing.

[0085] Computer program code for performing the operations of the present invention may be written in one or more programming languages ​​or a combination thereof, including object-oriented programming languages ​​such as Java, Smalltalk, C++, and conventional procedural programming languages ​​such as "C" or similar programming languages. The program code may be executed entirely on the user's computer, partially on the user's computer, as a separate software package, partially on the user's computer and partially on a remote computer, or entirely on a remote computer or server. In the case of a remote computer, the remote computer may be connected to the user's computer through any type of network, including a local area network (LAN) or a wide area network (WAN), or may be connected to an external computer (e.g., via the Internet using an Internet service provider).

[0086] Note that those skilled in the art may make various changes and modifications to the invention without departing from the spirit and scope of the invention. Thus, if these modifications and variations of the invention fall within the scope of the claims of the invention and their equivalents, the invention is intended to include these modifications and variations. As described above, the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features thereof may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A fully automatic bonding device for curved screen panels, comprising a frame, characterized in that: The frame is provided with a main control unit and several module components, which are used to complete the process of testing and assembling the curved screen panel, which includes: The loading station includes two loading channels and a loading box, which are used to store and load the curved screen panels and frames respectively; A pre-treatment station is used to perform defect detection and pre-treatment on the curved screen panel before assembling the curved screen panel; The laminating station is used to realize the gluing, alignment, bonding and curing processes of the curved screen panel; Finished product inspection station, used to evaluate the edge alignment, lamination uniformity, air tightness and electrostatic damage of the assembled curved screen panel, and to classify good and defective products; The unloading station includes three unloading channels and unloading boxes, which are used to unload finished products with different defect types; A robotic arm device is used to grab the curved screen panel and move it to the next workstation.

2. The fully automatic bonding equipment for curved screen panels according to claim 1, characterized in that: The pre-treatment station includes: The first detection device is used for initially detecting the dust particle size of the curved screen panel; High-pressure purge device, used for primary treatment of dust particles on the surface of the curved screen panel; The second detection device is used to re-check the dust particle size of the curved screen panel; The ultrasonic cleaning device is used for secondary treatment of dust particles on the surface of the curved screen panel.

3. The fully automatic bonding device for curved screen panels according to claim 2, characterized in that: The main control unit controls the first detection device to be normally open, and controls the high-pressure purge device, the ultrasonic cleaning device and the second detection device to be normally closed; When the curved screen panel is transferred to the pre-processing station, the first detection device obtains image information of the surface of the curved screen panel and transmits it to the main control unit to determine the diameter and density of particle impurities on the surface; If the density of visible particles is less than the standard value, it will directly enter the next station; If the density of visible particles is greater than the standard value, turn on the high-pressure purge device; The high-pressure purge device uses compressed air to purge the particle impurities on the surface of the curved screen panel. After the purge is completed, the second detection device obtains the particle impurity information on the surface of the curved screen panel again; If the density of visible particles is less than the standard value, it will directly enter the next station; If the density of visible particles is greater than the standard value, turn on the ultrasonic cleaning device; The ultrasonic cleaning device performs secondary processing on the curved screen panel through laser. After the ultrasonic processing is completed, the second detection device obtains the particle impurity information on the surface of the curved screen panel again; If the density of visible particles is less than the standard value, it will directly enter the next station; If the density of visible particles is greater than the standard value, continue to treat the curved screen panel with ultrasound.

4. The fully automatic bonding equipment for curved screen panels according to claim 1, characterized in that: The laminating station includes: The glue coating device is used to evenly apply a proper amount of optical glue on the edge of the curved screen panel so that the glue evenly covers the entire edge; An alignment device, used to align the display screen with the frame, ensuring that the curved screen panel is aligned with each edge of the frame; A bonding device, which bonds the curved screen panel and the frame together by applying pressure evenly; The curing device is used to irradiate the assembled display screen with UV light for 30 seconds to 2 minutes to ensure that the glue is completely cured before proceeding to the subsequent process.

5. The fully automatic bonding equipment for curved screen panels according to claim 1, characterized in that: The finished product inspection station includes: Level 1 flaw detection device, used to detect various defects on curved screen panels; Defect correction device, used to correct and eliminate various defects of the curved screen panel detected; Secondary flaw detection device, used to re-inspect various defects of curved screen panels; Defect marking device, which classifies and marks curved screen panels based on different defect types; The defect classification device classifies the curved screen panels into different levels based on different defect degrees.

6. The fully automatic bonding device for curved screen panels according to claim 5, characterized in that: The main control unit controls the primary flaw detection device to be normally open, and controls the defect correction device, the secondary flaw detection device, the secondary flaw detection device, the defect marking device, and the defect classification device to be normally closed; When the curved screen panel is transferred to the finished product inspection station, the first-level flaw detection device collects image data on the surface of the curved screen panel and transmits it to the main control unit. Based on the image processing algorithm, the type and degree of defects on the surface of the curved screen panel are identified; The main control unit controls the defect correction device to start; The defect correction device corrects and eliminates the edge alignment, lamination uniformity, air tightness and electrostatic damage defects of the curved screen panel; The main control unit controls the secondary flaw detection device to start; The secondary flaw detection device re-inspects the type and degree of defects on the curved screen panel; The main control unit controls the marking device and the classification device to start; The marking device marks the surface of the curved screen panel according to the defect classification after re-inspection; The classification device is turned on to compare the severity of the defect with the standard value, and classify the curved screen panels into Class I, Class II and Class III products. Correspondingly, Class I products are non-defective products, Class II products are defective but do not affect subsequent use, and Class III products are defective and cannot be used normally; The material-retrieving robot arm transfers the first, second and third category products to the corresponding unloading channels respectively, and finally temporarily stores them in the unloading box.

7. The fully automatic bonding device for curved screen panels according to claim 6, characterized in that: The inspection items of the curved screen panel include edge alignment, lamination uniformity, air tightness and electrostatic damage, and the corresponding classification standards for the curved screen panel are: Edge alignment: Category I products: edge alignment error ≤ 0.2mm; Category II products: edge alignment error > 0.2mm and ≤ 0.5mm; Category III products: edge alignment error>0.5mm; Pressing uniformity: Category I products: Pressing uniformity difference ≤ 0.1mm; Category II products: Pressing uniformity difference > 0.1mm and ≤ 0.3mm; Category III products: Pressing uniformity difference > 0.3mm; Airtightness: Category I products: qualified air tightness, 0 bubbles, no leakage; Category II products: Level 1 air leakage standard, the number of bubbles is ≤5; Category III products: Level II air leakage standard, number of bubbles > 5; Static Electricity Damage: Category 1 products: no electrostatic damage; Category II products: Level 1 electrostatic damage standard; Category III products: Level 2 electrostatic damage standard.

8. The fully automatic bonding equipment for curved screen panels according to claim 1, characterized in that: The system also includes one or more processors and a storage device, wherein the storage device is used to store one or more programs, and the one or more programs are executed by the one or more processors.

9. A method for fully automatic bonding of curved screen panels, characterized in that: The fully automatic bonding equipment for curved screen panels according to any one of claims 1 to 8 is used to achieve comprehensive quality monitoring of the curved screen panel assembly process and reduce the defective rate.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the fully automatic bonding method for curved screen panels as described in claim 9 is implemented.

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