An aligning and bonding system

Abstract

The utility model relates to display technical field discloses a kind of alignment and attachment systems, by setting first alignment mark and second alignment mark respectively on display panel and electromagnetic film, and using acquisition device to carry out high-precision identification and position deviation calculation to these marks, can significantly improve the alignment accuracy of display panel and electromagnetic film under the cooperation of alignment and attachment execution device. Compared with prior art, the system is no longer dependent on the edge of display panel and electromagnetic film as alignment reference, thereby effectively avoiding the center point deviation problem caused by shape cutting tolerance, can ensure that the touch area center point of electromagnetic film and the display area center point of display panel are accurately aligned, even in the presence of manufacturing tolerance, high-precision alignment and attachment can also be realized. In addition, it can also reduce the problem of writing accuracy decline and poor user experience caused by inaccurate alignment, thereby providing more stable and reliable writing experience, meeting the needs of high-precision writing and drawing.

Description

Technical Field

[0001] This utility model relates to the field of display technology, and in particular to an alignment and bonding system. Background Technology

[0002] In modern electronic devices, tablets with writing capabilities typically employ two main technologies: electromagnetic pen technology and capacitive pen technology. Electromagnetic pen technology achieves writing functionality by using an electromagnetic resonance (EMR) membrane. In this design, the EMR membrane is placed on the back of the display panel to enable precise positioning and signal sensing of the electromagnetic pen.

[0003] like Figure 1 As shown, during the bonding process between the electromagnetic film and the display panel, perfect alignment is difficult to achieve due to manufacturing and assembly tolerances. To ensure accurate recognition of writing content at any location on the display panel, the touch area of ​​the electromagnetic film must cover the entire display area of ​​the display panel, and the edge of the touch area should extend appropriately beyond the edge of the display area. Typically, the distance (denoted as 'a') between the edge of the touch area of ​​the electromagnetic film and the edge of the display area of ​​the display panel should be 0.5 mm.

[0004] Currently, in the process of aligning and bonding display panels and electromagnetic films, the industry commonly uses a CCD camera to capture the two right-angled edges of both the display panel and the electromagnetic film as alignment references. Figure 2 As shown. However, due to the shape cutting tolerances during the manufacturing process of the display panel and the electromagnetic film, the outer diameter (OD) tolerance of the display panel is ±0.13mm, while the outer diameter tolerance of the electromagnetic film is ±0.25mm. Therefore, when using the edge as the alignment reference, the distance between the edge and the center point of the display panel is not fixed (the same applies to the electromagnetic film), and there is a tolerance between them. This causes the center points of the display panel and the electromagnetic film to be misaligned after alignment and bonding, with a typical misalignment of 0.5mm. This misalignment not only affects the writing accuracy of the device but may also lead to a decline in the user experience.

[0005] In view of the above problems, the existing alignment and bonding technology between the display panel and the electromagnetic film can no longer meet the growing demand for high-precision writing. Therefore, it is necessary to improve and optimize the existing alignment and bonding technology to enhance the alignment accuracy between the display panel and the electromagnetic film, ensure the accuracy and stability of the writing function, and thus improve the overall performance of the product and the user experience.

[0006] The above information is provided as background information only to aid in understanding this disclosure and does not constitute an assertion or admission that any of the above content can be used as prior art relative to this disclosure. Utility Model Content

[0007] This invention provides an alignment and bonding system to achieve high-precision alignment and bonding between the display panel and the electromagnetic film.

[0008] To achieve the above objectives, this utility model provides the following technical solution:

[0009] A alignment and bonding system includes a display panel, an electromagnetic film, a data acquisition device, and an alignment and bonding execution device; wherein,

[0010] The display panel is provided with a first alignment mark;

[0011] The electromagnetic membrane is provided with a second alignment mark;

[0012] The acquisition device is used to acquire images of the display panel and the electromagnetic film, identify the first alignment mark and the second alignment mark, and calculate the positional deviation between the first alignment mark and the second alignment mark;

[0013] The alignment and bonding execution device is connected to the acquisition device and is used to align and bond the electromagnetic film to the display panel according to the positional deviation.

[0014] Furthermore, in the alignment and bonding system, the display area of ​​the display panel and the first alignment mark are produced using the same set of stencils;

[0015] The touch area of ​​the electromagnetic film and the second alignment mark are produced using the same set of stencils.

[0016] Furthermore, in the alignment and bonding system, the first alignment mark is located near the edge of the display panel;

[0017] The second alignment mark is located near the edge of the electromagnetic membrane.

[0018] Furthermore, in the alignment and bonding system, the display panel is provided with two first alignment marks;

[0019] The two first alignment marks are respectively located at two adjacent corners of the display panel;

[0020] The electromagnetic membrane is provided with two second alignment marks;

[0021] The two second alignment marks are located at two adjacent corners of the electromagnetic membrane.

[0022] Furthermore, in the alignment and bonding system, the acquisition device includes a first acquisition component and a second acquisition component;

[0023] The first acquisition component is used to acquire an image of a corner of the display panel and the electromagnetic film, identify the first alignment mark and the second alignment mark located at the corner, and calculate the positional deviation between the first alignment mark and the second alignment mark located at the corner;

[0024] The second acquisition component is used to acquire an image of the other corner of the display panel and the electromagnetic film, identify the first alignment mark and the second alignment mark located on the other corner, and calculate the positional deviation between the first alignment mark and the second alignment mark located on the other corner.

[0025] Furthermore, in the alignment and bonding system, both the first acquisition component and the second acquisition component include a camera and an image processing module;

[0026] The camera is used to acquire images of the display panel and the electromagnetic film;

[0027] The image processing module is used to analyze the acquired image to identify the first alignment mark and the second alignment mark, and to calculate the positional deviation between them.

[0028] Furthermore, in the alignment and bonding system, the alignment and bonding execution device includes a drive device, a joint structure, and an end effector; wherein,

[0029] The drive device is used to provide power and control the movement of the alignment and bonding actuator;

[0030] The joint structure is used to connect the drive device and the end effector to achieve multi-degree-of-freedom motion control;

[0031] The end effector is used to grasp the electromagnetic film and adjust its position according to the positional deviation, so as to align and bond the electromagnetic film with the display panel.

[0032] Furthermore, in the alignment and bonding system, both the first alignment mark and the second alignment mark are high-contrast optical marks.

[0033] Compared with the prior art, the present invention has the following beneficial effects:

[0034] This invention provides a alignment and bonding system that significantly improves the alignment accuracy between the display panel and the electromagnetic film by setting first and second alignment marks on the display panel and the electromagnetic film respectively, and using a data acquisition device to perform high-precision identification and positional deviation calculation on these marks. Compared with existing technologies, this system no longer relies on the edges of the display panel and the electromagnetic film as alignment references, thus effectively avoiding center point misalignment caused by shape cutting tolerances. By accurately identifying the alignment marks and adjusting the position of the electromagnetic film in real time, this system ensures precise alignment between the center point of the touch area of ​​the electromagnetic film and the center point of the display area of ​​the display panel, achieving high-precision alignment and bonding even with manufacturing tolerances. Furthermore, this system reduces the decrease in writing accuracy and poor user experience caused by inaccurate alignment, thus providing a more stable and reliable writing experience for tablet devices with writing functions, meeting the needs of high-precision writing and drawing.

[0035] This invention has other features and advantages that will be apparent from or will be set forth in detail in the accompanying drawings and the following detailed description, which together serve to explain the particular principles of this invention. Attached Figure Description

[0036] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0037] Figure 1 This is a schematic diagram of the structure of bonding electromagnetic film to display panel in the prior art;

[0038] Figure 2 This is a schematic diagram of existing technology that uses a CCD camera to capture the two right-angled edges of the display panel and the electromagnetic film for alignment and bonding.

[0039] Figure 3 This is a schematic diagram of the alignment and bonding system provided in an embodiment of the present invention;

[0040] Figure 4 This is a schematic diagram of the structure provided in this embodiment of the utility model, showing that the display panel and the electromagnetic film are respectively provided with alignment marks.

[0041] Figure label:

[0042] Display panel 1, electromagnetic film 2, acquisition device 3, alignment and bonding execution device 4, first alignment mark 5, second alignment mark 6;

[0043] First acquisition component 301, second acquisition component 302. Detailed Implementation

[0044] To illustrate the possible application scenarios, technical principles, implementable specific solutions, and achievable objectives and effects of this application in detail, the following description, in conjunction with the listed specific embodiments and accompanying drawings, provides a detailed explanation. The embodiments described herein are merely illustrative of the technical solutions of this application and are therefore intended to limit the scope of protection of this application.

[0045] In this document, the term "embodiment" means that a specific feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The term "embodiment" appearing in various places throughout the specification does not necessarily refer to the same embodiment, nor does it specifically limit its independence or connection with other embodiments. In principle, in this application, as long as there are no technical contradictions or conflicts, the technical features mentioned in each embodiment can be combined in any way to form corresponding implementable technical solutions.

[0046] Unless otherwise defined, the technical terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the use of related terms herein is merely for the purpose of describing particular embodiments and is not intended to limit this application.

[0047] In the description of this application, the term "and / or" is used to describe the logical relationship between objects, indicating that three relationships can exist. For example, A and / or B means: A exists, B exists, and A and B exist simultaneously. Additionally, the character " / " in this document generally indicates that the preceding and following objects have an "or" logical relationship.

[0048] In this application, terms such as “first” and “second” are used only to distinguish one entity or operation from another, and do not necessarily require or imply any actual quantity, hierarchy or order relationship between these entities or operations.

[0049] Unless otherwise specified, the use of terms such as “comprising,” “including,” “having,” or other similar expressions in this application is intended to cover non-exclusive inclusion, which does not exclude the presence of additional elements in a process, method, or product that includes the stated elements, such that a process, method, or product that includes a list of elements may include not only those defined elements but also other elements not expressly listed, or elements inherent to such a process, method, or product.

[0050] In this application, expressions such as "greater than", "less than", and "exceeding" are understood to exclude the stated number; expressions such as "above", "below", and "within" are understood to include the stated number. Furthermore, in the description of the embodiments of this application, "multiple" means two or more (including two), and similar expressions related to "multiple" are also understood in this way, such as "multiple groups" and "multiple times", unless otherwise explicitly specified.

[0051] In the description of the embodiments of this application, the space-related expressions used, such as "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "vertical," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," indicate the orientation or positional relationship based on the orientation or positional relationship shown in the specific embodiments or drawings. They are only for the purpose of describing the specific embodiments of this application or for the reader's understanding, and do not indicate or imply that the device or component referred to must have a specific position, a specific orientation, or be constructed or operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0052] Unless otherwise expressly specified or limited, the terms "installation," "connection," "linking," "fixing," and "setting," as used in the description of the embodiments of this application, should be interpreted broadly. For example, "connection" can be a fixed connection, a detachable connection, or an integral setting; it can be a mechanical connection, an electrical connection, or a communication connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be the internal connection of two components or the interaction between two components. For those skilled in the art to which this application pertains, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0053] Please refer to Figure 3-4 This utility model provides an alignment and bonding system, including a display panel 1, an electromagnetic film 2, a data acquisition device 3, and an alignment and bonding execution device 4;

[0054] Specifically, a first alignment mark 5 is provided on the display panel 1. The setting of this alignment mark is not arbitrary, but rather the result of rigorous design considerations. Its position, shape, and features have all been precisely calculated and optimized to provide accurate positioning basis for subsequent alignment and bonding operations.

[0055] The electromagnetic membrane 2 is also provided with a second alignment mark 6. The design of the second alignment mark 6 also fully considers the matching and coordination with the first alignment mark 5 on the display panel 1, so as to ensure that the two can achieve efficient and accurate information interaction in the subsequent recognition and calculation process.

[0056] The acquisition device 3 plays a crucial role in the entire alignment and bonding system. It possesses powerful image acquisition capabilities, enabling it to accurately acquire images of the display panel 1 and the electromagnetic film 2. After acquiring the images, the acquisition device 3 uses advanced image recognition algorithms and technologies to identify the first alignment mark 5 and the second alignment mark 6 in the images. By accurately extracting the feature information of the alignment marks, the acquisition device 3 can further calculate the positional deviation between the first alignment mark 5 and the second alignment mark 6. This calculation process requires extremely high precision and accuracy to ensure the reliability of subsequent alignment and bonding operations.

[0057] The alignment and bonding actuator 4 is tightly connected to the acquisition device 3, forming an organic whole. It can receive the positional deviation calculated by the acquisition device 3 in real time and precisely adjust the position of the electromagnetic membrane 2 based on this information. Under the precise control of the alignment and bonding actuator 4, the electromagnetic membrane 2 can achieve high-precision alignment and bonding with the display panel 1, ensuring that the relative position between the two reaches the optimal state.

[0058] The alignment and bonding system provided in this embodiment significantly improves the alignment accuracy between the display panel 1 and the electromagnetic film 2 by setting a first alignment mark and a second alignment mark on the display panel 1 and the electromagnetic film 2 respectively, and by using a data acquisition device 3 to perform high-precision identification and positional deviation calculation on these marks, combined with the precise operation of the alignment and bonding execution device 4. Compared with existing alignment and bonding technologies, this system has obvious advantages. Traditional alignment and bonding technologies often rely on the edges of the display panel 1 and the electromagnetic film 2 as alignment references. However, due to the unavoidable shape cutting tolerances in the manufacturing process of the display panel and the electromagnetic film, this edge-based alignment method is prone to center point misalignment, thus affecting the accuracy and quality of alignment and bonding. This system breaks through the limitations of this traditional mode, no longer relying on the edges as alignment references, thereby effectively avoiding center point misalignment caused by shape cutting tolerances.

[0059] By precisely identifying alignment marks and adjusting the position of the electromagnetic membrane 2 in real time, this system ensures accurate alignment between the center point of the operating area of ​​the electromagnetic membrane 2 and the center point of the visible area of ​​the display panel 1. Even with manufacturing tolerances, this system can still achieve high-precision alignment and bonding thanks to its high-precision identification and adjustment capabilities. Furthermore, this system significantly reduces problems such as decreased writing accuracy and poor user experience caused by inaccurate alignment. For tablet devices with writing functions, writing accuracy and user experience are crucial factors. By providing a more stable and reliable writing experience, this system fully meets the needs of high-precision writing and drawing, providing strong technical support for improving the performance and enhancing the market competitiveness of related products.

[0060] In one embodiment of this invention, the manufacturing process of the display panel 1 and the electromagnetic film 2 has been optimized. Specifically, the display area of ​​the display panel 1 and the first alignment mark 5 are manufactured using the same stencil. This manufacturing method has significant advantages. By using the same stencil, it is possible to ensure a high degree of consistency between the display area and the first alignment mark 5 in terms of process parameters, material properties, and processing precision during the manufacturing process. Under this strict production process control, the tolerance between the display area and the first alignment mark 5 can be precisely controlled within an extremely small range of ±0.002mm. Such a small tolerance means that during the production process, the deviations in key parameters such as the position and size of the display area and the first alignment mark 5 are minimal, which lays a solid foundation for subsequent high-precision alignment and bonding operations.

[0061] Similarly, the touch area of ​​the electromagnetic film 2 and the second alignment mark 6 are also produced using the same set of stencils. This production arrangement is also based on considerations of high-precision alignment and bonding. Using the same set of stencils to produce the touch area and the second alignment mark 6 can minimize deviations in size, position, etc., caused by differences between different stencils. Through meticulous production process control, the tolerance of the touch area of ​​the electromagnetic film 2 and the second alignment mark 6 can reach ±0.01mm. Although this tolerance is slightly larger than the tolerance of the display area of ​​the display panel 1 and the first alignment mark 5, it still meets the requirements of high-precision alignment in the entire alignment and bonding system.

[0062] After the display panel 1 and electromagnetic film 2 are manufactured according to the above production process, an alignment and bonding operation is performed. Through precise alignment adjustment and bonding, the misalignment after bonding can be controlled within a small range of 0.2mm. Compared with traditional alignment and bonding technology, the misalignment has been significantly reduced from 0.5mm to 0.2mm. This significant improvement brings several positive impacts. On the one hand, the reduction in misalignment directly improves the accuracy of alignment and bonding. During the alignment and bonding process of display panel 1 and electromagnetic film 2, a smaller misalignment means that the relative positions between the two are more accurate, enabling better functional matching and synergy, thereby improving the performance and stability of the entire tablet device. On the other hand, the reduction in misalignment also makes it possible to increase the screen-to-body ratio. In the design of tablet devices, the screen-to-body ratio is an important indicator, which directly affects the user's visual experience and the overall aesthetics of the device. Due to the reduction in misalignment, the layout of display panel 1 and electromagnetic film 2 can be arranged more rationally during the design and manufacturing process, reducing unnecessary bezel width, thereby achieving a higher screen-to-body ratio and bringing users a more immersive visual experience.

[0063] In one embodiment of this invention, the positions of the first alignment mark 5 and the second alignment mark 6 are carefully and scientifically designed to ensure that while achieving high-precision alignment and bonding, the impact on the core functional areas of the display panel 1 and the electromagnetic film 2 is minimized.

[0064] Specifically, the first alignment mark 5 is cleverly positioned near the edge of the display panel 1. This design decision was not arbitrary, but based on a thorough consideration of the functional characteristics of the display panel 1 and the user experience. The core functional area of ​​the display panel 1 is undoubtedly its display area, which is responsible for presenting images, text, and other information, directly affecting the user's visual experience. Placing the first alignment mark 5 near the edge keeps it away from the display area, effectively preventing it from obstructing or interfering with the display area. In practical applications, this arrangement ensures that the display panel 1 can display various information completely and clearly, without affecting the integrity and clarity of the image due to the presence of the alignment mark, providing users with a higher quality and smoother visual experience.

[0065] Similarly, the second alignment mark 6 is positioned near the edge of the electromagnetic membrane 2. The core functional area of ​​the electromagnetic membrane 2 is its touch area, which is responsible for sensing user touch operations and enabling human-computer interaction. Positioning the second alignment mark 6 near the edge keeps it away from the touch area, thus reducing its potential impact on touch operations. In practical use, this arrangement ensures that users will not make operational errors or experience unresponsiveness due to accidental touches on the alignment mark, guaranteeing the accuracy and smoothness of touch operations and improving the user experience.

[0066] In summary, by setting the first alignment mark 5 near the edge of the display panel 1 and the second alignment mark 6 near the edge of the electromagnetic film 2, this embodiment achieves high-precision alignment and bonding while fully considering the core functional requirements of the display panel 1 and the electromagnetic film 2, effectively reducing the impact on the display area and touch area, and providing a more stable and reliable performance guarantee for tablet devices with writing and touch functions.

[0067] Please refer to this again. Figure 4 In one embodiment of this invention, the alignment marks of the display panel 1 and the electromagnetic film 2 are further planned and arranged to achieve high-precision alignment and bonding, thereby ensuring the overall performance and user experience of the tablet device.

[0068] Specifically, two first alignment marks 5 are provided on the display panel 1. The positions of these two first alignment marks 5 are not randomly selected, but rather carefully considered and calculated, and are respectively placed at two adjacent corners of the display panel 1. Corner positions have unique geometric characteristics; their positions are relatively fixed and easy to identify, providing a stable and reliable positioning reference for the alignment operation. Placing the two first alignment marks 5 at two adjacent corners forms a positioning system with a clear direction and spatial relationship. In the subsequent alignment and bonding process, the acquisition device can accurately determine the spatial orientation and position of the display panel 1 by precisely identifying the position information of these two first alignment marks 5, laying a solid foundation for precise alignment with the electromagnetic film 2. At the same time, this arrangement also fully considers the integrity of the display area of ​​the display panel 1, avoiding unnecessary obstruction or interference to the display area, and ensuring the clarity and integrity of the display effect.

[0069] Correspondingly, two second alignment marks 6 are also provided on the electromagnetic film 2. These two second alignment marks 6 are positioned to correspond to the first alignment mark 5 on the display panel 1, located at two adjacent corners of the electromagnetic film 2. By placing the second alignment marks 6 at adjacent corners of the electromagnetic film 2, a one-to-one matching relationship can be formed with the first alignment mark 5 on the display panel 1. During the alignment and bonding process, the acquisition device can simultaneously identify the first alignment mark 5 on the display panel 1 and the second alignment marks 6 on the electromagnetic film 2, and by calculating the positional deviation between them, provide precise adjustment instructions to the alignment and bonding execution device. This arrangement not only helps improve the accuracy of alignment and bonding but also ensures that the touch area of ​​the electromagnetic film 2 and the display area of ​​the display panel 1 are precisely aligned in space, thereby guaranteeing the accuracy and stability of the writing and touch functions of the tablet device.

[0070] In summary, this embodiment constructs an efficient and precise alignment mark system by setting two first alignment marks 5 at two adjacent corners of the display panel 1 and two second alignment marks 6 at two adjacent corners of the electromagnetic film 2. This system can provide a reliable positioning basis for the alignment and bonding operation of the display panel 1 and the electromagnetic film 2, effectively improving alignment accuracy and reducing performance problems caused by inaccurate alignment.

[0071] Please refer to this again. Figure 3 In one embodiment of this invention, the acquisition device 3 is ingeniously designed and fully functional, consisting of a first acquisition component 301 and a second acquisition component 302. This dual-component architecture provides solid technical support for high-precision alignment and bonding operations.

[0072] Specifically, the first acquisition component 301 undertakes a specific and crucial task. It is responsible for acquiring images of a corner of the display panel 1 and the electromagnetic film 2. After acquiring a clear and accurate image, the first acquisition component 301 uses advanced image recognition technology to accurately identify the first alignment mark 5 and the second alignment mark 6 located at that corner. These two alignment marks serve as key positioning bases for alignment and bonding, and their recognition accuracy directly affects the accuracy of subsequent alignment operations. After successfully identifying the alignment marks, the first acquisition component 301 further uses algorithms and computational models to accurately calculate the positional deviation between the first alignment mark 5 and the second alignment mark 6 located at that corner. This positional deviation data is an important reference for the precise adjustment of the alignment and bonding execution device 4, providing crucial information to ensure accurate alignment of the display panel 1 and the electromagnetic film 2 at that corner.

[0073] The second acquisition component 302, working in conjunction with the first acquisition component 301, is responsible for acquiring images of another corner of the display panel 1 and the electromagnetic film 2. Its workflow is similar to that of the first acquisition component 301: it first acquires image information of the corner, then uses image processing technology to perform in-depth analysis of the image, accurately identifying the first alignment mark 5 and the second alignment mark 6 located at that corner. After identification, the second acquisition component 302 calculates the positional deviation between these two alignment marks. By separately acquiring images, identifying marks, and calculating positional deviations at two different corners, the first acquisition component 301 and the second acquisition component 302 jointly construct a comprehensive, multi-angle alignment information acquisition system, providing comprehensive and accurate data support for subsequent alignment and bonding operations.

[0074] Further investigation into the internal structure of the first acquisition component 301 and the second acquisition component 302 reveals that they both consist of two core parts: a camera and an image processing module. The camera, as the key device for image acquisition, possesses high resolution and high sensitivity, enabling it to quickly and accurately acquire image information from the display panel 1 and the electromagnetic film 2. Its optical system is meticulously designed and optimized to ensure clear, distortion-free images are acquired under various lighting conditions, providing high-quality raw data for subsequent image processing and alignment mark recognition.

[0075] The image processing module is the "brain" of the entire acquisition assembly, undertaking the crucial task of analyzing and processing the acquired images. Utilizing advanced image processing algorithms and technologies, the module performs a series of operations on the images acquired by the camera, including preprocessing, feature extraction, and marker recognition. During marker recognition, it accurately distinguishes the features of the first alignment marker 5 and the second alignment marker 6, precisely determining their positional information within the image. After marker recognition, the image processing module further calculates the positional deviation between the two alignment markers using mathematical models and algorithms. This calculation process requires extremely high precision and accuracy to ensure that the alignment and bonding execution device 4 can make precise adjustments based on this data, achieving high-precision alignment and bonding between the display panel 1 and the electromagnetic film 2.

[0076] In summary, this embodiment constructs a highly efficient and accurate acquisition device 3 by setting up a first acquisition component 301 and a second acquisition component 302, assigning them clear division of labor and functions, and combining the collaborative work of the camera and image processing module. This acquisition device 3 can provide comprehensive and accurate positional deviation information for the alignment and bonding operation of the display panel 1 and the electromagnetic film 2, providing strong technical support for improving alignment and bonding accuracy and ensuring the performance and user experience of the tablet device.

[0077] In one embodiment of this invention, the design of the alignment and bonding execution device 4 fully embodies the characteristics of high precision and high flexibility. It is composed of three key parts: a drive device, a joint structure, and an end effector, which work closely together to provide strong technical support for achieving high-precision alignment and bonding between the display panel 1 and the electromagnetic film 2.

[0078] The drive unit, as the power source of the entire alignment and bonding actuator 4, plays a crucial role. It acts as the "heart" of the device, providing a continuous power source for the movement of the entire system. The drive unit employs advanced power control technology, enabling precise control of the motion state of the alignment and bonding actuator 4, including parameters such as speed, acceleration, and direction. Through precise adjustment of these parameters, the drive unit ensures that the alignment and bonding actuator 4 moves according to the predetermined trajectory and requirements, laying a solid foundation for subsequent alignment and bonding operations. Its efficient and stable power output allows the alignment and bonding actuator 4 to maintain stable performance in various complex working environments, meeting the needs of high-precision alignment and bonding.

[0079] The joint structure is the core component of the alignment and bonding actuator 4, enabling multi-degree-of-freedom motion control. It cleverly connects the drive device and the end effector, much like a human joint, giving the device flexible movement capabilities. Utilizing high-precision mechanical design and manufacturing processes, the joint structure possesses multiple degrees of freedom, allowing the alignment and bonding actuator 4 to perform complex movements in three-dimensional space. Driven by the drive device, the joint structure can precisely adjust the posture and position of the alignment and bonding actuator 4, ensuring the end effector accurately reaches the designated working position. This multi-degree-of-freedom motion control capability allows the alignment and bonding actuator 4 to adapt to the alignment and bonding requirements of display panels 1 and electromagnetic films 2 of different shapes and sizes, greatly improving the device's versatility and adaptability.

[0080] As the direct operating component of the alignment and bonding device 4, the end effector undertakes the crucial task of gripping the electromagnetic membrane 2 and adjusting its position according to the positional deviation. The end effector employs advanced gripping technology and a high-precision position adjustment mechanism, enabling it to stably and reliably grip the electromagnetic membrane 2, ensuring it does not slip or get damaged during the gripping process. After gripping the electromagnetic membrane 2, the end effector interacts with the acquisition device 3 in real time to obtain the positional deviation information between the first alignment mark 5 and the second alignment mark 6. Based on this precise positional deviation data, the end effector uses advanced motion control algorithms to finely adjust the position of the electromagnetic membrane 2. By continuously fine-tuning the position and orientation of the electromagnetic membrane 2, the end effector ensures that the electromagnetic membrane 2 and the display panel 1 achieve high-precision alignment and bonding, optimizing their relative position to meet the high-precision writing and touch control requirements of the tablet device.

[0081] In summary, the alignment and bonding device 4 in this embodiment forms a highly efficient and precise alignment and bonding system through the coordinated operation of the drive device, joint structure, and end effector. The drive device provides power support, the joint structure realizes multi-degree-of-freedom motion control, and the end effector completes the gripping and position adjustment of the electromagnetic membrane 2. The three work together to ensure high-precision alignment and bonding between the display panel 1 and the electromagnetic membrane 2.

[0082] In one embodiment of this invention, both the first alignment mark 5 and the second alignment mark 6 are designed as high-contrast optical marks. This design choice incorporates many technical considerations and advantages, and plays a crucial role in achieving high-precision alignment and bonding between the display panel 1 and the electromagnetic film 2.

[0083] High-contrast optical markers are characterized by a striking difference in brightness or color between themselves and the surrounding background during image acquisition. This difference makes the first alignment marker 5 and the second alignment marker 6 easily identifiable and distinguishable in the acquired image. From an optical perspective, high contrast means that the light reflection or emission characteristics of the marker area differ significantly from those of the background area. When image acquisition devices such as cameras capture images, this difference is reflected in the image as a noticeable difference in pixel values.

[0084] In the actual alignment and bonding operation, the acquisition device 3 needs to quickly and accurately identify the position information of the first alignment mark 5 and the second alignment mark 6. Because the first alignment mark 5 and the second alignment mark 6 adopt a high-contrast optical design, the camera in the acquisition device 3 can easily capture clear images of these marks. Even under different lighting conditions, such as strong light, weak light or complex lighting environments, the high contrast characteristic can ensure the visibility and recognizability of the marks in the image.

[0085] Subsequently, when the image processing module in the acquisition device 3 analyzes and processes the acquired image, the high-contrast optical markers greatly simplify the algorithmic complexity of marker recognition. The image processing module can quickly and accurately locate the contours and center positions of the first alignment marker 5 and the second alignment marker 6 using simple threshold segmentation and edge detection algorithms. This not only improves the speed of image processing but also reduces errors that may be introduced due to algorithmic complexity, thereby ensuring the accuracy of alignment marker position recognition.

[0086] In summary, designing the first alignment mark 5 and the second alignment mark 6 as high-contrast optical marks fully utilizes their advantages such as easy identification and strong anti-interference ability, effectively improving the identification accuracy and speed of the alignment marks.

[0087] Although this application uses terms such as acquisition device and alignment mark frequently, the possibility of using other terms is not excluded. These terms are used merely for the convenience of describing and explaining the essence of this utility model; interpreting them as any additional limitation would contradict the spirit of this utility model.

[0088] Finally, it should be noted that although the above embodiments have been described in the text and drawings of this application, this should not limit the scope of patent protection of this application. Any technical solutions that are based on the essential concept of this application and utilize the content described in the text and drawings of this application, resulting in equivalent structural or procedural substitutions or modifications, as well as the direct or indirect application of the technical solutions of the above embodiments to other related technical fields, are all included within the scope of patent protection of this application.

Claims

1. A fitting and bonding system, characterized in that, It includes a display panel (1), an electromagnetic film (2), a data acquisition device (3), and an alignment and bonding execution device (4); among which, The display panel (1) is provided with a first alignment mark (5); The electromagnetic membrane (2) is provided with a second alignment mark (6); The acquisition device (3) is used to acquire images of the display panel (1) and the electromagnetic film (2), identify the first alignment mark (5) and the second alignment mark (6), and calculate the positional deviation between the first alignment mark (5) and the second alignment mark (6); The alignment and bonding execution device (4) is connected to the acquisition device (3) and is used to align and bond the electromagnetic film (2) to the display panel (1) according to the position deviation. Both the first alignment mark (5) and the second alignment mark (6) are high-contrast optical marks.

2. The alignment and bonding system according to claim 1, characterized in that, The display area of ​​the display panel (1) and the first alignment mark (5) are produced using the same set of stencils; The touch area of ​​the electromagnetic film (2) and the second alignment mark (6) are produced using the same set of stencils.

3. The alignment and bonding system according to claim 1, characterized in that, The first alignment mark (5) is located near the edge of the display panel (1); The second alignment mark (6) is located near the edge of the electromagnetic membrane (2).

4. The alignment and bonding system according to claim 3, characterized in that, The display panel (1) is provided with two first alignment marks (5); The two first alignment marks (5) are respectively located at two adjacent corners of the display panel (1); The electromagnetic membrane (2) is provided with two second alignment marks (6); The two second alignment marks (6) are located at two adjacent corners of the electromagnetic membrane (2).

5. The alignment and bonding system according to claim 4, characterized in that, The acquisition device (3) includes a first acquisition component (301) and a second acquisition component (302); The first acquisition component (301) is used to acquire an image of a corner of the display panel (1) and the electromagnetic film (2), identify the first alignment mark (5) and the second alignment mark (6) located at the corner, and calculate the positional deviation between the first alignment mark (5) and the second alignment mark (6) located at the corner; The second acquisition component (302) is used to acquire an image of another corner of the display panel (1) and the electromagnetic film (2), identify the first alignment mark (5) and the second alignment mark (6) located on the other corner, and calculate the positional deviation between the first alignment mark (5) and the second alignment mark (6) located on the other corner.

6. The alignment and bonding system according to claim 5, characterized in that, Both the first acquisition component (301) and the second acquisition component (302) include a camera and an image processing module; The camera is used to acquire images of the display panel (1) and the electromagnetic film (2); The image processing module is used to analyze the acquired image to identify the first alignment mark (5) and the second alignment mark (6) and to calculate the positional deviation between them.

7. The alignment and bonding system according to claim 1, characterized in that, The alignment and fitting actuator (4) comprises a drive device, a joint structure, and an end effector; wherein... The drive device is used to provide power and control the movement of the alignment and bonding actuator (4); The joint structure is used to connect the drive device and the end effector to achieve multi-degree-of-freedom motion control; The end effector is used to grasp the electromagnetic membrane (2) and adjust the position of the electromagnetic membrane (2) according to the position deviation, so as to align and attach the electromagnetic membrane (2) with the display panel (1).

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