Full-lamination laser separation equipment for display screen

Abstract

The invention relates to the technical field of display screen manufacturing, in particular to display screen full-lamination laser separation equipment which comprises a machine base, an acoustic thickness measuring module, a laser scanning module, a fine adjustment executing mechanism and a cooling assembly. The acoustic thickness measuring module monitors the thickness through ultrasonic waves, the laser scanning module adjusts the laser position according to data, the fine tuning execution mechanism achieves high-precision displacement control, and the cooling assembly optimizes the heat dissipation performance. The thickness can be monitored in real time, the laser position can be accurately controlled, the heat affected area is reduced, the separation precision and the equipment intelligence level are remarkably improved, and therefore the separation efficiency and the product quality are improved.

Description

Technical Field

[0001] This application relates to the field of display manufacturing technology, and more specifically, to a laser separation device for full lamination of display screens. Background Technology

[0002] Full lamination technology for displays, by seamlessly bonding the screen and touch layer, significantly improves display quality, reduces optical interference, and enhances the touch experience, becoming an important development direction in modern display technology. However, in the separation process of fully laminated displays, existing technologies exhibit certain limitations in terms of precision control, heat-affected zone management, and equipment integration, which affect separation efficiency and product quality.

[0003] Specifically, existing display screen separation technologies have room for improvement in controlling the heat-affected zone, as excessive heat can lead to material performance degradation or damage to the separation interface. Regarding separation precision adjustment, some equipment struggles to achieve micron-level high-precision operation, thus affecting the consistency of separation results. Furthermore, the level of equipment intelligence is relatively limited, lacking real-time feedback and dynamic adjustment capabilities for the separation process. These factors collectively restrict the applicability and stability of separation equipment, failing to fully meet the modern display industry's demand for efficient and intelligent separation devices. Summary of the Invention

[0004] The purpose of this invention is to provide a laser separation device for full lamination of displays. By integrating functional units such as an acoustic thickness measurement module, a laser scanning module, a fine-tuning actuator, and a cooling component, it optimizes the control of the heat-affected zone, the adjustment of separation accuracy, and the level of equipment intelligence during the separation process, thereby improving the separation effect and enhancing the applicability and stability of the equipment.

[0005] To achieve the above objectives, the present invention provides a laser separation device for full lamination of display screens, comprising:

[0006] The base is equipped with a protective cover and has multiple support legs at the bottom;

[0007] An acoustic thickness measurement module includes an ultrasonic transmitter, a receiver, and a signal processing unit. The ultrasonic transmitter and the receiver are fixed on both sides of the base and arranged symmetrically. The signal processing unit is installed on one side of the base and is electrically connected to the ultrasonic transmitter and the receiver. The ultrasonic transmitter is configured to emit ultrasonic signals that penetrate the display screen to be separated. The receiver is configured to receive the reflected signals and transmit them to the signal processing unit. The signal processing unit is configured to detect the thickness data of the display screen from the received signals.

[0008] A laser scanning module includes a laser component and a guide component. The guide component is disposed on the base, and the laser component is mounted on the guide component to follow the movement of the guide component and emit a laser beam.

[0009] The fine-tuning actuator includes a piezoelectric brake and a displacement transmission component. The piezoelectric brake is fixed on the base, and the displacement transmission component is mounted on the laser assembly. One end of the displacement transmission component is connected to the output end of the piezoelectric brake.

[0010] Preferably, the guide assembly includes electric slide rails and electric sliders, a plurality of electric slide rails extending along the lateral direction of the base and fixed on the base, electric sliders being slidably connected to the electric slide rails, a bracket being fixed between the plurality of electric sliders, and the laser assembly being fixed on the bracket.

[0011] Preferably, the bracket is provided with a placement seat, the placement seat is provided with multiple limiting blocks, and the surface of the placement seat is processed with anti-slip texture. The base is provided with multiple limiting grooves, and the placement seat is slidably connected to the limiting grooves.

[0012] Preferably, the signal processing unit includes an analog-to-digital converter, a digital signal processor, and a memory. The analog-to-digital converter converts the ultrasonic echo signal into a digital signal, the digital signal processor filters and denoises the received digital signal, and the memory stores the processed data.

[0013] Preferably, it also includes a control unit and a feedback sensor. The control unit is mounted on one side of the base, and the feedback sensor is fixed on the displacement transmission member and electrically connected to the control unit. The control unit receives the thickness change value transmitted by the signal processing unit and generates an adjustment command to be transmitted to the piezoelectric actuator. The feedback sensor detects the actual displacement of the displacement transmission member and feeds back the detection result to the control unit.

[0014] Preferably, the feedback sensor is a non-contact displacement sensor, and the surface of the displacement transmission component is engraved with high-precision scale marks. The high-precision scale marks cooperate with the non-contact displacement sensor to improve measurement accuracy. The non-contact displacement sensor is fixed to the side of the displacement transmission component by a magnetic base.

[0015] Preferably, the laser scanning module further includes a cooling component, which includes a heat-conducting element and a cooling fan. The heat-conducting element is fixed to the outside of the laser component, and the cooling fan is mounted on a bracket with its air outlet facing the heat-conducting element.

[0016] Preferably, the surface of the heat-conducting component is processed with a plurality of heat dissipation fins, which extend along the length direction of the heat-conducting component.

[0017] Preferably, the laser scanning module further includes a beam shaping component, which includes a lens group and a reflector. The lens group is located at the output end of the laser component and is mounted on the bracket via a fixing bracket. The reflector is located in front of the lens group and is fixed on the bracket via a fixing bracket.

[0018] Preferably, the mounting bracket is provided with an angle adjustment bolt for adjusting the angle of the reflector.

[0019] The laser separation device for fully laminated displays provided by this invention monitors the thickness of the display screen in real time using an acoustic thickness measurement module. An ultrasonic transmitter emits ultrasonic signals, a receiver receives the reflected signals, and a signal processing unit processes the signals to generate thickness data. A laser scanning module adjusts the position of the laser component based on the thickness data. An electric slide rail and an electric slider move the laser component along a predetermined path, and a piezoelectric brake performs micron-level precise adjustments to the laser component via a displacement transmission component. A cooling component reduces the operating temperature of the laser component through heat-conducting components and a cooling fan to prevent performance degradation due to overheating. A beam shaping component shapes the laser beam using a lens group and a reflector to ensure uniform laser energy distribution and precise focusing at the separation interface.

[0020] The above structure, through the collaborative work of multiple modules, solves the problems of inaccurate control of the heat-affected zone, insufficient separation accuracy, and limited intelligence level of equipment in the existing technology, and significantly improves separation efficiency and product quality. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the specific embodiments of this disclosure or the prior art, the accompanying drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this disclosure. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. The illustrative embodiments of this application and their descriptions are used to explain this application and do not constitute an improper limitation of this application.

[0022] Figure 1 This is a schematic diagram of the first three-dimensional structure of the present invention;

[0023] Figure 2 This is a schematic diagram of the second three-dimensional structure of the present invention;

[0024] Figure 3 This is a schematic diagram of a first partial three-dimensional structure of the present invention;

[0025] Figure 4 This is a schematic diagram of the second partial three-dimensional structure of the present invention;

[0026] Figure 5 This is a schematic diagram of the third partial three-dimensional structure of the present invention;

[0027] Figure 6 This is a schematic diagram of the fourth partial three-dimensional structure of the present invention;

[0028] Icons: 1. Base; 2. Ultrasonic transmitter; 3. Receiver; 4. Signal processing unit; 5. Laser assembly; 6. Guide assembly; 7. Piezoelectric brake; 8. Displacement transmission component; 9. Control unit; 10. Feedback sensor; 11. Heat conduction component; 12. Cooling fan; 13. Lens assembly; 14. Reflector; 61. Electric slide rail; 62. Electric slider; 63. Bracket; 631. Placement seat; 632. Limiting groove. Detailed Implementation

[0029] To make the technical solutions and advantages of the embodiments of this application clearer, the exemplary embodiments of this application will be described in further detail below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not an exhaustive list of all embodiments. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of this application can be combined with each other.

[0030] The specific embodiments of the display screen full lamination laser separation device of the present invention will be described in detail with reference to the accompanying drawings. For example... Figure 1 and Figure 2 As shown, the device mainly includes a base 1, an acoustic thickness measurement module, a laser scanning module, a fine-tuning actuator, a cooling assembly, and related auxiliary components. These modules work together through a reasonable layout and connection to achieve efficient separation of the full lamination layer of the display screen.

[0031] The base 1 serves as the fundamental support structure for the entire device, equipped with a protective cover to safeguard internal components, and multiple feet at the bottom for stability. An ultrasonic transmitter 2 and receiver 3 are mounted symmetrically on one side of the base 1 and connected to a signal processing unit 4 via wires. Figure 2 As shown, the ultrasonic transmitter 2 and receiver 3 are fixed on both sides of the base 1, while the signal processing unit 4 is located on one side of the base 1, close to the ultrasonic transmitter 2, for easy wiring and maintenance. The ultrasonic transmitter 2 emits ultrasonic signals that penetrate the display screen to be separated. The receiver 3 receives the reflected signals and transmits them to the signal processing unit 4 for processing. The signal processing unit 4 includes an analog-to-digital converter (ADC), a digital signal processor (DSP), and a memory. The ADC converts the received analog signals into digital signals, and the DSP filters and denoises the received digital signals to generate thickness data, which is then stored in the memory. The signal processing unit 4 is connected to an external control system via a communication interface, enabling real-time transmission and analysis of the thickness data.

[0032] The core components of the laser scanning module include the laser assembly 5, the guiding assembly 6, and the beam shaping assembly. For example... Figure 3 and Figure 4 As shown, the guide assembly 6 consists of electric slide rails 61, electric sliders 62, and a bracket 63. Multiple electric slide rails 61 extend laterally along the base 1 and are fixed to the base 1 with screws. Electric sliders 62 are slidably connected to the electric slide rails 61. A bracket 63 is bolted between the multiple electric sliders 62. The laser assembly 5 is fixed to the bracket 63 with nuts. A placement seat 631 is provided on the bracket 63. The surface of the placement seat 631 is machined with anti-slip textures to enhance friction and prevent displacement of the display screen during operation. Limiting blocks are provided on the surface of the placement seat 631. The number and position of the limiting blocks can be adjusted according to actual needs to ensure the stability of the display screen. Multiple limiting grooves 632 are provided on the base 1, and the placement seat 631 is slidably connected to the limiting grooves 632. The beam shaping assembly includes a lens group 13 and a reflector 14. The lens group 13 is mounted on the bracket 63 via a fixing bracket and is located at the output end of the laser assembly 5. The reflector 14 is located in front of the lens group 13 and is fixed to the bracket 63 via a fixing bracket. The angle of the reflector 14 can be adjusted via an angle adjusting bolt to ensure that the laser beam can be accurately focused on the separation interface. The installation positions of the lens group 13 and the reflector 14 are precisely calculated to ensure uniform energy distribution and optimal focusing effect of the laser beam.

[0033] The fine-tuning actuator includes a piezoelectric brake 7 and a displacement transmission component 8. The piezoelectric brake 7 is fixed to the base 1 by bolts, and the displacement transmission component 8 is mounted on the laser assembly 5, with one end connected to the output end of the piezoelectric brake 7 via a coupling. Figure 5 and Figure 6 As shown, the feedback sensor 10 is fixed to the displacement transmission component 8 with screws and connected to the control unit 9 via wires. The control unit 9 is mounted on one side of the base 1, receives the thickness change value transmitted by the signal processing unit 4, generates adjustment commands, and transmits them to the piezoelectric actuator 7. The feedback sensor 10 detects the actual displacement of the displacement transmission component 8 and feeds back the detection result to the control unit 9. The feedback sensor 10 is a non-contact displacement sensor, which is fixed to the side of the displacement transmission component 8 by a magnetic base. The surface of the displacement transmission component 8 is engraved with high-precision scale marks, which work in conjunction with the non-contact displacement sensor to improve measurement accuracy. The piezoelectric actuator 7 drives the displacement transmission component 8 to perform micron-level precise adjustments according to the commands of the control unit 9, thereby achieving high-precision positioning of the output angle of the laser component 5.

[0034] The cooling assembly includes a heat-conducting component 11 and a cooling fan 12. The heat-conducting component 11 is fixed to the outside of the laser assembly 5 by bolts, and the cooling fan 12 is mounted on a bracket 63 with its air outlet facing the heat-conducting component 11. Figure 6 As shown, the surface of the heat-conducting component 11 is machined with multiple heat dissipation fins, which extend along the length of the heat-conducting component 11. The spacing between the heat dissipation fins is calculated and designed to optimize heat dissipation efficiency. The heat-conducting component 11 is made of aluminum alloy and undergoes anodizing treatment to improve its corrosion resistance. The cooling fan 12 delivers directional airflow through an air duct to ensure that the heat-conducting component 11 can quickly dissipate the heat generated at the output end of the laser component 5, avoiding performance degradation due to overheating.

[0035] The equipment operates as follows: First, the display screen to be separated is placed on the placement seat 631. The surface of the placement seat 631 has anti-slip textures to enhance friction and is equipped with limit blocks to ensure the stability of the display screen. The ultrasonic transmitter 2 emits ultrasonic signals that penetrate the display screen, and the receiver 3 receives the reflected signals and transmits them to the signal processing unit 4. The signal processing unit 4 processes the signals and generates thickness data, which is then transmitted to the control unit 9. The control unit 9 generates adjustment commands based on the thickness data and transmits them to the piezoelectric brake 7. The piezoelectric brake 7 drives the displacement transmission component 8 to make fine adjustments, thereby adjusting the angle position of the output end of the laser component 5. The electric slide rail 61 and the electric slider 62 drive the laser component 5 and the placement seat 631 to move along a predetermined path. The output end of the laser component 5 emits a laser beam, which is shaped by the lens group 13 and the reflector 14 and then focused on the separation interface. During the laser separation process, the cooling fan 12 cools the output end of the laser component 5 through the heat conduction component 11 to ensure stable operation of the equipment over a long period of time. Feedback sensor 10 detects the actual displacement of displacement transmission component 8 in real time and feeds back the detection result to control unit 9. Control unit 9 further optimizes and adjusts the instructions based on the feedback information, thereby realizing closed-loop control of the separation process.

[0036] The modules mentioned above achieve efficient collaboration through reasonable layout and connection, solving the problems of inaccurate control of the heat-affected zone, insufficient separation accuracy, and limited intelligence level of equipment in the existing technology, and significantly improving separation efficiency and product quality.

[0037] To enable those skilled in the art to fully understand and implement this invention, the following supplementary explanation of the implementation principle of this invention is provided in conjunction with a specific application scenario.

[0038] First, the display screen to be separated is placed on the placement base 631, ensuring its surface is flat and centered. After the ultrasonic transmitter 2 is activated, it emits an ultrasonic signal. The signal penetrates the display screen and reflects back through the internal interface. The receiver 3 receives the reflected signal and transmits it to the signal processing unit 4. The analog-to-digital converter in the signal processing unit 4 converts the received analog signal into a digital signal. Subsequently, the digital signal processor filters and denoises the received signal, generating thickness data and storing it in the memory. During this process, the penetration depth and reflection time of the ultrasonic signal are precisely calculated, thereby achieving real-time monitoring of changes in the display screen thickness. The signal processing unit 4 transmits the thickness data to the control unit 9 via a communication interface. The control unit 9 generates adjustment commands based on the thickness data and sends them to the piezoelectric actuator 7.

[0039] After receiving the adjustment command, the piezoelectric actuator 7 drives the displacement transmission component 8 to perform a fine-tuning operation. The surface of the displacement transmission component 8 is engraved with high-precision scale marks. The feedback sensor 10 is fixed to the side of the displacement transmission component 8 via a magnetic base, detecting the actual displacement of the displacement transmission component 8 in real time and feeding the detection result back to the control unit 9. The control unit 9 further optimizes the adjustment command based on the feedback information, forming a closed-loop control system, thereby ensuring that the output angle of the laser component 5 can be positioned at a predetermined position with micron-level accuracy. In this process, the high response speed of the piezoelectric actuator 7 and the high measurement accuracy of the feedback sensor 10 work together to achieve dynamic adjustment of the output angle position of the laser component 5.

[0040] Meanwhile, the electric slide rail 61 and electric slider 62 in the guide assembly 6 drive the laser assembly 5 and the placement seat 631 to move along a predetermined path. The electric slide rail 61 extends laterally along the base 1, and the electric slider 62 is slidably connected on the electric slide rail 61. A bracket 63 is fixed between multiple electric sliders 62 by bolts, and the laser assembly 5 is fixed to the bracket 63 by nuts. The placement seat 631 on the bracket 63 is slidably connected to the limiting groove 632 on the base 1 to ensure that the display screen remains stable during operation. The output end of the laser assembly 5 emits a laser beam, which is focused on the separation interface after being shaped by the lens group 13 and the reflector 14. The installation positions of the lens group 13 and the reflector 14 are precisely calculated. The lens group 13 ensures uniform energy distribution of the laser beam, and the reflector 14 adjusts its angle by angle adjustment bolts to ensure that the laser beam can be accurately focused on the separation interface.

[0041] During laser separation, the cooling components work synchronously to reduce the operating temperature of the laser component 5. The heat-conducting element 11 is bolted to the outside of the laser component 5. Multiple heat dissipation fins are machined onto its surface, extending along the length of the heat-conducting element 11. The spacing between the fins is optimized to improve heat dissipation efficiency. A cooling fan 12 is mounted on a bracket 63 via a support bracket. Its outlet faces the heat-conducting element 11 and directs airflow through an air duct, quickly dissipating the heat absorbed by the heat-conducting element 11. The heat-conducting element 11 is made of aluminum alloy and undergoes anodizing treatment to improve corrosion resistance, thereby ensuring that the cooling components maintain efficient heat dissipation during long-term operation.

[0042] The aforementioned modules work together to solve problems existing in the prior art. For example, the acoustic thickness measurement module monitors the display screen thickness changes in real time, solving the problem of inaccurate control of the heat-affected zone; the combination of the piezoelectric actuator 7 and the feedback sensor 10 achieves micron-level high-precision positioning, solving the problem of insufficient separation accuracy; and the efficient heat dissipation design of the cooling components avoids performance degradation due to overheating, improving equipment stability. These improvements significantly enhance separation efficiency and product quality, meeting the modern display industry's demand for efficient and intelligent separation equipment.

[0043] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

[0044] In the description of this disclosure, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this disclosure and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this disclosure. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0045] In the description of this disclosure, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linkage" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this disclosure based on the specific circumstances.

[0046] Although preferred embodiments of this application have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of this application.

[0047] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Therefore, if such modifications and variations fall within the scope of the claims of this application and their equivalents, this application also intends to include such modifications and variations.

Claims

1. A laser separation device for full lamination of a display screen, characterized in that, include: The base (1) is equipped with a protective cover and has multiple support legs installed at the bottom; An acoustic thickness measurement module includes an ultrasonic transmitter (2), a receiver (3), and a signal processing unit (4). The ultrasonic transmitter (2) and the receiver (3) are respectively fixed on both sides of the base (1) and arranged symmetrically. The signal processing unit (4) is installed on one side of the base (1) and is electrically connected to the ultrasonic transmitter (2) and the receiver (3). The ultrasonic transmitter (2) is configured to emit ultrasonic signals that penetrate the display screen to be separated. The receiver (3) is configured to receive the reflected signals and transmit the signals to the signal processing unit (4). The signal processing unit (4) is configured to detect the thickness data of the display screen from the received signals. The laser scanning module includes a laser component (5) and a guide component (6). The guide component (6) is disposed on the base (1). The laser component (5) is mounted on the guide component (6) to follow the movement of the guide component (6) and emit a laser beam. The fine-tuning actuator includes a piezoelectric brake (7) and a displacement transmission component (8). The piezoelectric brake (7) is fixed on the base (1), and the displacement transmission component (8) is mounted on the laser assembly (5). One end of the displacement transmission component (8) is connected to the output end of the piezoelectric brake (7).

2. The display screen full lamination laser separation equipment according to claim 1, characterized in that, The guide assembly (6) includes an electric slide rail (61) and an electric slider (62). A plurality of electric slide rails (61) extend along the transverse direction of the base (1) and are fixed on the base (1). An electric slider (62) is slidably connected to the electric slide rail (61). A bracket (63) is fixed between the plurality of electric sliders (62). The laser assembly (5) is fixed on the bracket (63).

3. The display screen full lamination laser separation equipment according to claim 2, characterized in that, The bracket (63) is provided with a placement seat (631), the placement seat (631) is provided with multiple limiting blocks, and the surface of the placement seat (631) is processed with anti-slip texture. The base (1) is provided with multiple limiting grooves (632), and the placement seat (631) is slidably connected to the limiting grooves (632).

4. The display screen full lamination laser separation equipment according to claim 1, characterized in that, The signal processing unit (4) includes an analog-to-digital converter, a digital signal processor, and a memory. The analog-to-digital converter converts the ultrasonic echo signal into a digital signal. The digital signal processor performs filtering and noise reduction processing on the received digital signal. The memory is used to store the processed data.

5. The display screen full lamination laser separation equipment according to claim 1, characterized in that, It also includes a control unit (9) and a feedback sensor (10). The control unit (9) is mounted on one side of the base (1). The feedback sensor (10) is fixed on the displacement transmission member (8) and electrically connected to the control unit (9). The control unit (9) receives the thickness change value transmitted by the signal processing unit (4) and generates an adjustment command to be transmitted to the piezoelectric actuator (7). The feedback sensor (10) detects the actual displacement of the displacement transmission member (8) and feeds back the detection result to the control unit (9).

6. The display screen full lamination laser separation equipment according to claim 5, characterized in that, The feedback sensor (10) is a non-contact displacement sensor. The surface of the displacement transmission component (8) is engraved with high-precision scale marks. The high-precision scale marks are used in conjunction with the non-contact displacement sensor to improve measurement accuracy. The non-contact displacement sensor is fixed to the side of the displacement transmission component (8) by a magnetic base.

7. The display screen full lamination laser separation equipment according to claim 2, characterized in that, The laser scanning module also includes a cooling component, which includes a heat-conducting element (11) and a cooling fan (12). The heat-conducting element (11) is fixed to the outside of the laser component (5), and the cooling fan (12) is mounted on a bracket (63). The air outlet of the cooling fan (12) faces the heat-conducting element (11).

8. The display screen full lamination laser separation equipment according to claim 7, characterized in that, The surface of the heat-conducting component (11) is processed with a plurality of heat dissipation fins, which extend along the length direction of the heat-conducting component (11).

9. The display screen full lamination laser separation equipment according to claim 2, characterized in that, The laser scanning module also includes a beam shaping component, which includes a lens group (13) and a reflector (14). The lens group (13) is located at the output end of the laser component (5) and is mounted on the bracket (63) by a fixing bracket. The reflector (14) is located in front of the lens group (13) and is fixed on the bracket (63) by a fixing bracket.

10. The display screen full lamination laser separation equipment according to claim 9, characterized in that, The mounting bracket is equipped with angle adjustment bolts for adjusting the angle of the reflector (14).

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