Peeling apparatus and peeling method

Abstract

The present disclosure provides a peeling device and a peeling method thereof. The peeling device comprises: a peeling assembly for separating a flexible film layer on the display panel from a glass substrate; a conveying assembly for conveying the peeled display panel to a next station; a detection device mounted on the conveying assembly for detecting whether there is an occupying strip fragment in the display panel during transmission; a controller electrically connected with the conveying assembly and the detection device; the controller further comprises a judgment module for controlling the running state of the detection device and the conveying assembly according to the detection result of the detection device; the present application directly detects the occupying strip fragment through the detection device, detects the occupying strip residue anomaly in time, and intercepts the occupying strip residue defect at the station, which greatly improves the product delivery yield.

Description

Technical Field

[0001] This disclosure relates to the field of display screen peeling technology, and more particularly to a peeling device and a peeling method thereof. Background Technology

[0002] In the peeling process of organic light-emitting products, laser lift-off (LLO) is required to separate the glass substrate from the flexible thin film layer. In existing technologies, a laser is typically used to irradiate the glass substrate with the PI (polyimide) film, causing the PI film to lose its adhesiveness and thus separating the flexible film from the glass substrate. During this process, dummy strips are usually located near the product edge. During the PI peeling operation, if the dummy strip is accidentally subjected to excessive stretching or compression, it may occasionally be scratched at the product edge. Once scratched, fragments of the dummy strip may remain on the product surface, and these fragments are often extremely small and difficult to detect. Consequently, when the display panel cutting process begins, the presence of these dummy strip fragments causes the cutting tool to either fail to make proper contact with the product surface, be forced to deviate from the predetermined cutting line, or get stuck at the fragments, preventing normal cutting. This results in the product failing to separate, sticking together, and detaching, leading to a decrease in product yield.

[0003] To address the aforementioned issues, existing technologies utilize specialized testing equipment such as macroscopic inspection devices or automated optical inspection equipment to detect residual fragments in the display panels. However, since display panels are mass-produced and each batch contains a large number of panels, performing a full inspection of all display panels using specialized equipment would require a significant amount of time and effort, potentially leading to delays in delivery. Summary of the Invention

[0004] In view of this, the purpose of this disclosure is to propose a stripping device and method to solve the problems of existing technology being unable to detect abnormalities in placeholder strip residue in a timely manner and intercept defective placeholder strip residue at the station, resulting in untimely delivery and low delivery yield.

[0005] For the purposes described above, this disclosure discloses a stripping device, comprising:

[0006] A peeling assembly for separating the flexible thin film layer on the display panel from the glass substrate;

[0007] The stripping device also includes:

[0008] A conveying assembly for transporting the stripped display panel to the next workstation;

[0009] A detection device, which is installed on the transmission assembly, is used to detect whether there are placeholder strip fragments on the surface of the display panel during the transmission process.

[0010] The controller is electrically connected to the transmission component and the detection device, respectively;

[0011] The controller further includes a judgment module, which controls the operating status of the detection device and the conveying component based on the detection results of the detection device. If the detection device does not detect the presence of the placeholder strip fragment on the surface of the display panel, the judgment module determines that it is normal; if the detection device detects the presence of the placeholder strip fragment on the surface of the display panel, the judgment module determines that it is abnormal and controls the detection device and the conveying component to stop.

[0012] Furthermore, the detection device is a reflective sensor or a transmissive sensor;

[0013] Preferably, the detection device is a reflective sensor.

[0014] Furthermore, the detection device includes a reflection sensor and a reflector, which are respectively installed on both sides of the transmission assembly.

[0015] Furthermore, the detection device is installed downstream of the conveying assembly.

[0016] Furthermore, a mounting base is fixed to one side of the transmission assembly, and the reflection sensor is fixed to the mounting base.

[0017] Furthermore, the mounting base has multiple mounting holes distributed vertically, and the reflective sensor is fixed to the mounting holes by screws.

[0018] Furthermore, the mounting base includes a base plate, a slider, and a locking rod. The base plate is fixedly connected to one side of the conveying assembly, the slider is slidably connected to the base plate, the locking rod is threadedly connected to the slider, and one end of the locking rod abuts against the base plate. The reflective sensor is fixed on the slider.

[0019] Furthermore, the base plate is provided with a slide rail extending in a vertical direction, and the slider can slide up and down along the direction of the slide rail.

[0020] Furthermore, it also includes an alarm, which is electrically connected to the controller.

[0021] A stripping method using the stripping device described above includes the following steps:

[0022] The flexible thin film layer is peeled off from the glass substrate to obtain the peeled display panel.

[0023] The display panel is placed on the conveying assembly, and the surface of the display panel is inspected by a detection device during the conveying process.

[0024] The controller uses a judgment module to determine whether there are placeholder strip fragments on the surface of the display panel.

[0025] If the placeholder strip fragment is not present on the surface of the display panel, the conveying component continues to move and transports the display panel to the next process;

[0026] If the placeholder strip fragment is present on the surface of the display panel, the controller controls the conveying component to stop working and the placeholder strip fragment is manually removed.

[0027] Compared with the prior art, the stripping device provided in this disclosure has the following technical advantages:

[0028] 1. By installing a detection device that can directly detect placeholder strip fragments, the timeliness of defect detection is improved, and residual defective placeholder strips are intercepted at the station, greatly improving the product yield.

[0029] 2. By directly installing the detection device on the stripping equipment, it occupies little space, has a simple design, is easy to modify on existing equipment, and does not require separate detection through additional detection equipment, which greatly improves the efficiency of defect detection and saves costs.

[0030] 3. The detection device can be either a reflective or transmissive sensor, with a wide range of options. At the same time, the market price of sensors is transparent, which is conducive to accurate price comparison, greatly reducing the difficulty of implementing the solution and effectively reducing costs.

[0031] 4. The position of the detection device can be flexibly adjusted according to actual needs, with a large adjustment range and high flexibility, ensuring maximum detection accuracy.

[0032] 5. The alarm's instant response mechanism ensures that operators are promptly notified when fragments of the placeholder strip are detected, reducing downtime and improving production continuity. Attached Figure Description

[0033] To more clearly illustrate the technical solutions in this disclosure or related technologies, the accompanying drawings used in the description of the embodiments or related technologies will be briefly introduced below. Obviously, the accompanying drawings described below are only embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0034] Figure 1 This is a schematic diagram of the structure of the stripping equipment.

[0035] Figure 2 This is a schematic diagram of the structure of a mounting base according to an embodiment of the present invention;

[0036] Figure 3 This is a schematic diagram of the structure of the mounting base according to another embodiment of the present invention;

[0037] Figure 4 This is a block diagram of the control circuit for the stripping equipment;

[0038] Figure 5 This is a schematic diagram of the workflow of the stripping equipment.

[0039] The components include: 1. Display panel; 2. Conveying assembly; 3. Detection device; 30. Reflection sensor; 31. Reflector; 4. Placeholder strip fragment; 5. Controller; 6. Mounting base; 60. Mounting hole; 62. Base plate; 63. Slider; 64. Locking rod; 65. Slide rail; and 7. Alarm. Detailed Implementation

[0040] The following description, with reference to the accompanying drawings, illustrates preferred embodiments of the present invention, demonstrating its implementability. These embodiments provide a complete overview of the invention for those skilled in the art, making its technical content clearer and easier to understand. The present invention can be embodied in many different forms of embodiments, and the scope of protection of the present invention is not limited to the embodiments mentioned herein.

[0041] In the accompanying drawings, components with the same structure are indicated by the same numerical designation, and components with similar structures or functions are indicated by similar numerical designations. The dimensions and thicknesses of each component shown in the drawings are arbitrary, and the present invention does not limit the dimensions and thicknesses of each component. To make the illustrations clearer, the thickness of components is appropriately exaggerated in some places in the drawings.

[0042] Furthermore, the following descriptions of the embodiments of the invention are made with reference to the accompanying illustrations, illustrating specific embodiments in which the invention can be implemented. Directional terms used in this invention, such as "upper," "lower," "front," "rear," "left," "right," "inner," "outer," and "side," are merely directional references to the accompanying drawings. Therefore, the use of directional terms is for better and clearer explanation and understanding of the invention, and does not indicate or imply that the referred device or element must have a specific orientation, or be constructed and operated in a specific orientation; therefore, they should not be construed as limitations on the invention. Furthermore, the terms "first," "second," and "third," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0043] When a component is described as being "on" another component, the component may be placed directly on the other component; alternatively, an intermediate component may exist on which the component is placed, and the intermediate component is placed on the other component. When a component is described as being "installed to" or "connected to" another component, both can be understood as being directly "installed" or "connected" to, or indirectly "installed to" or "connected to" another component via an intermediate component.

[0044] The inventors, through long-term practical work, discovered the following problems in the relevant technology:

[0045] In the peeling process of organic light-emitting products, laser lift-off (LLO) is required to separate the glass substrate from the flexible thin film layer. In existing technologies, a laser is typically used to irradiate the glass substrate with the PI (polyimide) film, causing the PI film to lose its adhesiveness, thereby separating the polyimide layer from the glass substrate. During this process, a placeholder strip is usually located near the product edge. During the PI peeling operation, if the placeholder strip is accidentally subjected to excessive stretching or compression, it may occasionally be scratched at the product edge. Once scratched, placeholder strip fragments (4) may remain on the product surface, forming placeholder strip fragments 4. These fragments are often extremely small and difficult to detect. Consequently, when the display panel cutting process begins, the presence of these placeholder strip fragments 4 causes the cutting tool to either fail to make smooth contact with the product surface, be forced to deviate from the predetermined cutting line, or get stuck at the fragments, preventing normal cutting. This results in the product failing to separate, sticking together and falling off, leading to a decrease in product yield.

[0046] In existing technologies, placeholder strip fragments can be detected by using specialized testing equipment such as macroscopic inspection equipment or automated optical inspection equipment. However, since display panels are mass-produced and each batch contains a large number of panels, if specialized testing equipment is used for inspection, a full inspection of all display panels would require a significant amount of time and effort, potentially leading to delays in delivery.

[0047] For the reasons mentioned above, this application provides a solution for a stripping device to address the aforementioned problems.

[0048] like Figures 1-4The diagram shown is a schematic of a peeling device according to an embodiment of this application. The peeling device specifically includes: a peeling component, a conveying component 2, a detection device 3, and a controller 5. The peeling component is used to separate the polyimide layer on the display panel 1 from the glass substrate. The conveying component 2 is used to transport the peeled display panel 1 to the next station. The detection device 3 is installed on the conveying component 2 and is used to detect whether there are placeholder strip fragments 4 on the display panel 1 during the transmission process.

[0049] The controller is electrically connected to the transmission component and the detection device, respectively;

[0050] The controller further includes a judgment module, which controls the operating status of the detection device and the conveying component based on the detection results of the detection device. If the detection device does not detect the presence of the placeholder strip fragment on the surface of the display panel, the judgment module determines that it is normal; if the detection device detects the presence of the placeholder strip fragment on the surface of the display panel, the judgment module determines that it is abnormal and controls the detection device and the conveying component to stop.

[0051] In this embodiment, the display panel before peeling is a panel with a rigid glass substrate and a flexible film. An array substrate, a light-emitting layer, and other display devices are disposed on the side of the flexible film away from the glass substrate. In this embodiment, the flexible film 220 can be a polyimide film, a polyethylene terephthalate film, etc. Laser peeling technology using polyimide as the interface material plays an important role in flexible electronics manufacturing. Polyimide has good tensile strength and bending properties, stable physical properties, and is durable, making it an ideal substrate for flexible electronic devices. Traditional flexible substrate materials such as polyethylene terephthalate and polycarbonate cannot withstand high temperatures, while polyimide can withstand temperatures up to 400°C and exhibits minimal thermal deformation at high temperatures. This advantage significantly simplifies the overall process flow.

[0052] In this embodiment, the peeling component uses laser peeling technology. The peeling device also includes a laser, a laser control device, and a thickness sensing device. The laser irradiates the display panel 1, while the thickness sensing device acquires the thickness data of the display panel. The laser is turned on and emits laser light, which passes through the glass substrate and irradiates the contact surface between the flexible film and the glass substrate. Simultaneously, the thickness sensing device also detects the thickness. As the laser moves, it drives the thickness sensing device, which detects the thickness of the flexible film in the panel from beginning to end. After the detection is completed, the detected thickness data is sent to the central control device. The central control device controls the laser control device based on the thickness data. After receiving the thickness data, the central control device... The received thickness data is analyzed to determine the laser energy required for a second irradiation of the edge of the flexible film in the display panel. Based on the analysis results, corresponding control commands are sent to the laser control device. The laser control device rotates its axis according to the received control commands, thereby flipping the corresponding light-transmitting plate and adjusting its angle. This adjusts the intensity of the laser, ensuring that the laser emitted during the second irradiation of the panel is specifically targeted at the edge of the thicker flexible film 220. This causes the entire surface of the flexible film in contact with the glass substrate to lose its adhesiveness. The glass substrate is then separated from the flexible film using a suction cup or pickup device, completing the laser peeling process of the display panel.

[0053] Laser peeling technology precisely controls the peeling process using a high-precision laser beam, reducing mechanical contact and thus lowering the risk of damage to the placeholder strip. This innovative design not only significantly reduces the defect rate caused by placeholder strip fragments, but also dramatically improves production line efficiency, ensuring both product quality and timely delivery, bringing revolutionary progress to the display panel manufacturing industry.

[0054] The conveyor assembly 2 employs a high-efficiency belt drive system to ensure smooth transport of the display panel 1. Specifically, it includes a drive motor, a drive pulley, a driven pulley, and a belt. The drive motor rotates the drive pulley, transmitting power to the driven pulley via the belt, achieving precise synchronous transmission. Preferably, the conveyor assembly 2 consists of a series of rollers arranged in a row. The rollers rotate via a motor or other drive device. The display panel 1 is placed on the rollers, and its transport is achieved by the rotation of the rollers. Multiple rollers simultaneously support the display panel 1, effectively distributing its weight and reducing deformation or swaying caused by uneven local stress. This provides stable support and transport for the display panel 1, making it particularly suitable for large, thin display panels and helping to prevent damage caused by swaying during transport. The width, length, and spacing of the roller conveyor can be flexibly adjusted and customized according to different sizes and types of display panels. Whether it's a small mobile phone display panel, a large television display panel, or even a special-sized industrial display panel, all can be efficiently transported using the corresponding roller conveyor system, demonstrating strong versatility and compatibility. The rollers are typically made of smooth, soft materials, such as rubber or polyurethane, which reduces friction and scratches on the display panel when in contact with it. Furthermore, roller conveying is a surface-contact method, which, compared to point-contact or line-contact methods, distributes pressure more evenly on the display panel, reducing the risk of panel breakage or damage due to excessive localized pressure.

[0055] By installing a detection device 3 that can directly detect placeholder strip fragments, the timeliness of defect detection is improved, and residual defective placeholder strips are intercepted at the station, greatly increasing the product yield. The detection device 3 is installed directly on the stripping equipment, requiring little space, with a simple design, and is easy to modify for use on existing equipment. It eliminates the need for separate detection using additional equipment, significantly improving defect detection efficiency and saving costs.

[0056] The detection device 3 is installed downstream of the conveyor assembly 2. Downstream means, viewed from the direction of movement of the conveyor assembly 2, at a position slightly behind it and before it enters the next workstation. Alternatively, the detection device 3 can be positioned midway or upstream of the conveyor assembly 2; its specific location is not limited, as long as it effectively detects the fragments 4 of the placeholder strip on the peeled display panel 1, thereby promptly issuing control signals to prevent the fragments from affecting subsequent processes and improving production efficiency and product yield.

[0057] The detection device 3 employs a high-precision sensor capable of real-time monitoring and identification of minute placeholder strip fragments 4, ensuring that the machine is stopped before the fragments affect cutting, effectively reducing the generation of defective products. Specifically, the detection device 3 can be a reflective sensor or a transmissive sensor; in this embodiment, the detection device 3 is preferably a reflective sensor. The transmissive sensor consists of a transmitter and a receiver, respectively installed at corresponding positions on both sides of the conveying assembly 2. The transmitter emits light; if the light passes smoothly through and is received by the receiver, it indicates that there are no placeholder strip fragments 4 on the display panel 1; if the intensity of the light received by the receiver changes, it indicates that there are placeholder strip fragments 4 on the display panel. When the platform width of the conveying assembly 2 is large and the fold height is relatively high, the transmissive sensor can provide more reliable detection results. This is because it can utilize the light transmission characteristic to detect the situation across the entire platform width, effectively capturing changes in light even if the placeholder strip fragment 4 is at a high position.

[0058] In one embodiment, the detection device 3 is a transmittance sensor, specifically a through-beam sensor. The through-beam sensor includes a transmitter and a receiver. Light emitted by the transmitter needs to travel a certain spatial distance to be received by the receiver, thus forming a light path. The transmitter and receiver are respectively installed on both sides of the transmission assembly 2. The transmitter and receiver must be precisely aligned so that the light emitted by the transmitter accurately illuminates the photosensitive element of the receiver. Even slight deviations can lead to decreased detection performance or even malfunction. By analyzing changes in light intensity, it can be determined whether there is a placeholder strip fragment 4 on the display panel 1: if there is a placeholder strip fragment 4 on the display panel 1, the placeholder strip fragment 4 will block the light, causing a change in the light intensity received by the receiver; if there is no placeholder strip fragment 4 on the display panel 1, the light will not be blocked, and the light intensity received by the receiver will not change.

[0059] In another preferred embodiment, the detection device 3 is a reflective sensor. For example... Figure 1As shown, the detection device 3 includes a reflection sensor 30 and a reflector 31, which are respectively installed on both sides of the transmission assembly 2. The reflection sensor 30 integrates the transmitter and receiver and is installed on one side of the transmission assembly 2. Under normal circumstances, light is received by the receiver according to a certain reflection law; the sensor converts the received light signal into an electrical signal and analyzes it. The characteristics of the light are extracted and analyzed, including the intensity of the reflected light, the angular distribution of the reflected light, and the scattering of the light. Based on the extracted characteristics, a threshold discrimination algorithm is used to finally determine whether there is a placeholder strip fragment 4 on the display panel 1. When light is projected onto the flat and flawless surface of the display panel 1, based on the optical properties of the display panel 1 material, the light will be reflected according to a certain law, and the reflected light returns to the light receiving element in a relatively concentrated and stable mode. At this time, the light intensity, polarization state, and reflection angle of the light received by the light receiving element are all within the preset normal range. The reflection sensor 30 judges based on these standard parameters that no abnormality has been found on the surface of the display panel 1, that is, there is no placeholder strip fragment 4. However, the situation changes drastically once a placeholder fragment 4 is attached to the display panel 1. Because the placeholder fragment 4 differs significantly from the display panel 1 in material, surface roughness, and geometry, its reflection behavior changes drastically when light shines on it. The fragment may cause light to scatter in multiple directions, resulting in significant fluctuations in the light intensity of the reflected light receiving element compared to normal conditions—it may increase or decrease. Furthermore, the polarization state of the reflected light may deviate from normal values, and the angular distribution may become chaotic. By accurately capturing and analyzing these abnormal reflected light characteristics, the reflection sensor 30 can quickly and accurately deduce the presence of the placeholder fragment 4 on the display panel 1.

[0060] like Figure 1 As shown, a reflector 31 is also installed on the other side of the transmission assembly 2. The reflection sensor 30 operates by emitting light and receiving reflected light. Adding the reflector 31 can reflect more light back to the reflection sensor 30, enhancing the intensity of the reflected signal. Especially when the surface of the display panel 1 has low reflectivity, or when the placeholder strip fragment 4 scatters light strongly, the reflector can effectively increase the energy of the reflected light, making it easier for the reflection sensor 30 to detect changes in the reflected light, thereby improving the sensitivity and accuracy of detection. The reflector 31 can also make the path of the reflected light more stable and predictable. It can reflect the light back to the reflection sensor 30 in a specific direction, reducing fluctuations in the intensity and direction of the reflected light caused by factors such as light scattering and diffuse reflection. This can reduce the interference of ambient light and other factors on the detection results, improve the stability and reliability of detection, and ensure that the presence of the placeholder strip fragment 4 can be accurately detected under different environmental conditions.

[0061] In this embodiment, the reflector 31 is made of a high-reflectivity material, and its surface is specially treated to maximize the reflection of incident light. Additionally, the other side of the transmission component 2 is fixed to a mounting plate (not shown). The reflector 31 is secured to the mounting plate with screws to ensure its stable position during the operation of the transmission component, preventing vibration or displacement from affecting the accuracy of the optical path. Furthermore, the mounting plate has multiple screw holes along the vertical direction. The reflector 31 can be fixed by selecting appropriate screw hole positions to ensure optimal relative positioning between the reflector 31 and the reflection sensor 30, thereby maximizing the intensity and stability of the reflected light signal. This design not only improves the performance of the detection system but also extends the service life of the equipment, ensuring continuous and efficient operation of the production line. Furthermore, the surface of the reflector 31 is coated with a dust-proof coating, effectively reducing dust adhesion and maintaining reflection efficiency. The overall structure is compact, facilitating maintenance and replacement, further enhancing the reliability and practicality of the system.

[0062] In addition to transmit and reflective sensors, other sensor models can also be selected, such as KEYENCE LV-S41, KEYENCE LV-NH35 and PZ-G41N, etc. Different types of sensors have different advantages, and you can choose the one that offers the best cost performance.

[0063] The sensor used in this application has a wide range of options, and the sensor market price is transparent, which facilitates accurate price comparison, greatly reduces the difficulty of implementing the solution, and effectively reduces costs.

[0064] A mounting base 6 is fixed to one side of the transmission component 2, and the reflection sensor 30 is fixed to the mounting base 6. In this application, the installation position of the reflection sensor 30 can be flexibly adjusted according to actual needs to ensure the optimal detection position.

[0065] In one embodiment of this application, reference is made to Figure 2 The mounting base 6 has multiple mounting holes 60 arranged vertically, and the reflective sensor 30 is fixed to the mounting holes 60 by screws 61. The multiple mounting holes 60 arranged vertically provide the reflective sensor 30 with great installation flexibility. In actual industrial production processes, the shapes of objects to be inspected vary greatly, and their height ranges are wide. Different product batches or process improvements may significantly change the inspection scenario. In this case, the multiple mounting holes 60 act as a "height adjustment ruler" tailored for the reflective sensor 30. Operators can accurately select the appropriate height position of the mounting hole 60 according to the specific inspection task and firmly fix the reflective sensor 30 with screws 61. This ensures that the reflective sensor 30 can maintain a precise vertical alignment of its optical path regardless of the height of the object to be inspected, effectively avoiding detection deviations caused by height differences and greatly expanding the applicable boundaries of the inspection system.

[0066] In another embodiment of this application, reference is made to Figure 3 The mounting base 6 includes a base plate 62, a slider 63, and a locking rod 64. The base plate 62 is fixedly connected to one side of the conveying assembly 2. The slider 63 is slidably connected to the base plate 63. The locking rod 64 is threadedly connected to the slider 63, with one end of the locking rod 64 abutting against the base plate 62. The reflective sensor 30 is fixed on the slider 63. When the user needs to adjust the position of the reflective sensor 30, they first need to manually rotate the locking rod 64, then slide the slider 63 along the base plate 62 to the desired position, and then rotate the locking rod 64 in the opposite direction to lock it, ensuring the sensor is secure. This design not only simplifies the adjustment process but also improves installation accuracy, adapts to more complex detection scenarios, and further optimizes the flexibility and reliability of the detection system.

[0067] Specifically, the base plate 62 is equipped with a vertically extending slide rail 65, and the slider 63 can slide up and down along the slide rail 65. The slide rail 65 makes it more intuitive and convenient for operators to adjust the vertical height of the detection device 3. Operators only need to push the slider 63 up and down along the slide rail 65 according to the actual height characteristics of the object to be detected to quickly complete the height adaptation of the detection device 3. There is no need for complicated calibration tools or cumbersome debugging steps, which greatly improves the efficiency of equipment debugging and maintenance in daily production and provides a strong guarantee for the efficient advancement of the entire detection process.

[0068] The position of the detection device 3 can be flexibly adjusted according to actual needs, with a large adjustment range and high flexibility, ensuring maximum detection accuracy.

[0069] The stripping device also includes an alarm 7, which is electrically connected to the controller 5. When the detection device 3 detects a placeholder strip fragment 4 on the display panel 1, the detection device 3 transmits this information to the controller 5 in the form of an electrical signal. Upon receiving the electrical signal, the controller 5 immediately controls the conveying assembly to stop working and issues an alarm to remind the operator to remove the placeholder strip fragment 4 in a timely manner. Once the conveying assembly stops operating, it effectively prevents the display panel 1 with the placeholder strip fragment 4 from continuing to flow to the downstream process, avoiding potentially more complex quality problems and equipment damage risks. Simultaneously, the controller 5 activates the electrical connection with the alarm 7, sending a clear alarm command to the alarm 7. Warning signals can take many forms. They can be high-pitched, penetrating sounds that instantly attract the operator's attention, even in noisy workshops. They can also use brightly flashing lights to alert operators to equipment malfunctions in dimly lit or visually obstructed conditions. Furthermore, they can employ a combined sound and light system, using the dual stimulation of high-decibel sound and high-intensity flashing lights to enhance the warning effect and ensure operators don't miss important alerts. Different alarm levels can be set: low, medium, and high. A low alarm indicates minor debris damage with minimal impact on production; a medium alarm indicates damage requiring attention and immediate attention; and a high alarm indicates severe damage requiring immediate shutdown.

[0070] The alarm 7's instant response mechanism ensures that operators are quickly notified when placeholder strip fragments are detected, reducing downtime and improving production continuity.

[0071] like Figure 5 As shown, one embodiment of this application also provides a stripping method for a stripping device, comprising the following steps:

[0072] S1: Peel off the flexible thin film layer from the glass substrate to obtain the peeled display panel 1.

[0073] Specifically, a peeling assembly is used to peel the flexible thin film layer from the glass substrate to obtain the peeled display panel 1. In this embodiment, the display panel 1 before peeling is a panel with a rigid glass substrate and a flexible thin film, wherein an array substrate, a light-emitting layer, and other display devices are provided on the side of the flexible thin film away from the glass substrate. The display panel 1 after peeling is a panel with a flexible thin film, wherein an array substrate, a light-emitting layer, and other display devices are provided on the side of the flexible thin film away from the glass substrate.

[0074] The peeling process in this embodiment utilizes laser peeling technology. Laser peeling technology precisely controls the peeling process using a high-precision laser beam, reducing mechanical contact and thus lowering the risk of damage to the placeholder strip. This innovative design not only significantly reduces the defect rate caused by placeholder strip fragments 4, but also significantly improves the smoothness of the production line, ensuring both product quality and timely delivery, bringing revolutionary progress to the display panel manufacturing industry.

[0075] S2: Place the display panel 1 on the conveying component 2, and at the same time, detect the surface of the display panel 1 through the detection device 3 during the conveying process;

[0076] Specifically, a detection device 3 is installed on the conveying assembly 2 to detect the surface 1 of the display panel 1 during the conveying process. The detection device 3 employs a high-precision sensor capable of real-time monitoring and identification of minute spacer strip fragments 4, ensuring that a stop is triggered before the fragments affect cutting, effectively reducing the generation of defective products. The detection device 3 can be a reflective sensor or a transmissive sensor; in this embodiment, a reflective sensor is preferred.

[0077] S3: Determine whether there is a placeholder strip fragment 4 on the surface of the display panel 1 through the judgment module in the controller;

[0078] If there is no placeholder strip fragment 4 on the surface of display panel 1, the conveying component 2 continues to move and transports the display panel to the next process;

[0079] If there is a placeholder strip fragment 4 on the surface of the display panel 1, the controller 5 controls the conveying component 2 to stop working and manually removes the placeholder strip fragment 4.

[0080] Specifically, when the detection device 3 detects that the placeholder strip fragment 4 remains on the surface of the peeled display panel 1, the detection device 3 sends a control signal to the controller 5. After receiving the control signal, the controller 5 controls the peeling component and the conveying component 2 to stop working and remove the placeholder strip fragment 4. When the detection device 3 does not detect the placeholder strip fragment on the surface of the peeled display panel 1, the conveying component 2 continues to operate and transports the display panel 1 to the next workstation.

[0081] This application has the following technical advantages:

[0082] 1. By installing a detection device that can directly detect placeholder strip fragments, the timeliness of defect detection is improved, and residual defective placeholder strips are intercepted at the station, greatly improving the product yield.

[0083] 2. By directly installing the detection device on the stripping equipment, it occupies little space, has a simple design, is easy to modify on existing equipment, and does not require separate detection through additional detection equipment, which greatly improves the efficiency of defect detection and saves costs.

[0084] 3. The detection device can be either a reflective or transmissive sensor, with a wide range of options. At the same time, the market price of sensors is transparent, which is conducive to accurate price comparison, greatly reducing the difficulty of implementing the solution and effectively reducing costs.

[0085] 4. The position of the detection device can be flexibly adjusted according to actual needs, with a large adjustment range and high flexibility, ensuring maximum detection accuracy.

[0086] 5. The alarm's instant response mechanism ensures that operators are promptly notified when fragments of the placeholder strip are detected, reducing downtime and improving production continuity.

[0087] It should be noted that the above description describes some embodiments of this disclosure. Other embodiments are within the scope of the appended claims. In some cases, the actions or steps recorded in the claims can be performed in a different order than that shown in the above embodiments and still achieve the desired result. Furthermore, the processes depicted in the drawings do not necessarily require a specific or sequential order to achieve the desired result. In some embodiments, multitasking and parallel processing are also possible or may be advantageous.

[0088] This disclosure is intended to cover all such substitutions, modifications, and variations that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this disclosure should be included within the scope of protection of this disclosure.

Claims

1. A stripping device, comprising: A peeling assembly for separating the flexible film layer of a display panel from a glass substrate, characterized in that... The stripping device also includes: A conveying assembly for transporting the stripped display panel to the next workstation; A detection device, which is installed on the transmission assembly, is used to detect whether there are placeholder strip fragments on the surface of the display panel during the transmission process. The controller is electrically connected to the transmission component and the detection device, respectively; The controller further includes a judgment module, which controls the operating status of the detection device and the conveying component based on the detection results of the detection device. If the detection device does not detect the presence of the placeholder strip fragment on the surface of the display panel, the judgment module determines that it is normal; if the detection device detects the presence of the placeholder strip fragment on the surface of the display panel, the judgment module determines that it is abnormal and controls the detection device and the conveying component to stop.

2. The stripping device according to claim 1, characterized in that, The detection device is a reflective sensor or a transmissive sensor; Preferably, the detection device is a reflective sensor.

3. The stripping device according to claim 2, characterized in that, The detection device includes a reflection sensor and a reflector, which are respectively installed on both sides of the transmission assembly.

4. The stripping device according to claim 1, characterized in that, The detection device is installed downstream of the transmission assembly.

5. The stripping device according to claim 3, characterized in that, A mounting base is fixed to one side of the transmission assembly, and the reflection sensor is fixed to the mounting base.

6. The stripping device according to claim 5, characterized in that, The mounting base has multiple mounting holes distributed vertically, and the reflective sensor is fixed to the mounting holes by screws.

7. The stripping device according to claim 5, characterized in that, The mounting base includes a base plate, a slider, and a locking rod. The base plate is fixedly connected to one side of the conveying assembly. The slider is slidably connected to the base plate. The locking rod is threadedly connected to the slider, and one end of the locking rod abuts against the base plate. The reflective sensor is fixed on the slider.

8. The stripping device according to claim 7, characterized in that, The base plate is provided with a slide rail extending in a vertical direction, and the slider can slide up and down along the direction of the slide rail.

9. The stripping device according to claim 1, characterized in that, It also includes an alarm, which is electrically connected to the controller.

10. A stripping method using the stripping device as described in any one of claims 1-9, Its features are, Includes the following steps: The flexible thin film layer is peeled off from the glass substrate to obtain the peeled display panel; The display panel is placed on the conveying assembly, and the surface of the display panel is inspected by a detection device during the conveying process. The controller uses a judgment module to determine whether there are placeholder strip fragments on the surface of the display panel. If the placeholder strip fragment is not present on the surface of the display panel, the conveying component continues to move and transports the display panel to the next process; If the placeholder strip fragment is present on the surface of the display panel, the controller controls the conveying component to stop working and remove the placeholder strip fragment.

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