An OLED module and a production process
By coating fluorocarbon and polysiloxane coatings on the glass substrate of the OLED module and using all-round irradiation technology in the ultraviolet curing system, the problems of high equipment investment, high maintenance costs and uneven curing in the production of existing OLED modules are solved, and higher production efficiency and quality are achieved.
Patent Information
- Application Number
- CN202510422164.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-07
- Publication Date
- 2025-07-01
- Estimated Expiration
- 2045-04-07
AI Technical Summary
In the existing OLED module production technology, the equipment investment is huge, the operating and maintenance costs are high, and blind spots are prone to occur when ultraviolet rays are cured, resulting in a decline in production quality.
Using an OLED module and production process, the light transmittance and surface smoothness are improved by simultaneously coating fluorocarbon compounds and polysiloxane coatings on the glass substrate, and the UV light curing system is used to drive the rotation of the turntable and the drive rod, so that the UV lamp tube can be irradiated in all directions.
The light transmittance and curing quality of the OLED module are improved, and the secondary curing or rework is required due to incomplete local curing, which improves production efficiency and quality and reduces costs.
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Figure CN119968020B_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of OLED module production, and specifically provides an OLED module and a production process. Background Art
[0002] OLED (organic light-emitting diode) is a light-emitting device composed of a very thin organic material coating and a glass substrate. When an electric charge passes through these organic materials, they emit light. The color of the light emitted by the OLED depends on the material of the organic light-emitting layer. Therefore, manufacturers can obtain the required color by changing the material of the light-emitting layer. The active matrix organic light-emitting display has a built-in electronic circuit system, and each pixel is independently driven by a corresponding circuit.
[0003] Common OLED modules include an OLED display screen, a printed circuit board, and a frame. When producing an OLED module, methods include evaporation deposition (forming a thin film layer by depositing metal or organic material vapor in a vacuum environment onto a substrate), inkjet printing (using a nozzle to precisely eject a liquid material to a specified position to form a required pattern), and laser-induced thermal imaging (using a laser to irradiate the organic material on a transfer medium so that it is heated and transferred to a target substrate).
[0004] However, although the evaporation deposition method can ensure high-quality thin film preparation, the equipment investment is huge, and the operation and maintenance costs are high. The inkjet printing method is flexible and convenient, but it is difficult to ensure long-term stability and consistency. The laser-induced thermal imaging method is limited by the processing speed and output, and cannot meet the needs of large-scale production. Moreover, before these steps, it is necessary to keep the display screen substrate of the common OLED module clean to avoid affecting the subsequent coating coverage, resulting in high precision required for the entire process. And during irradiation curing, it is carried out by ultraviolet irradiation. Since the ultraviolet lamp irradiates within a fixed range, it is easy to have dead corners during curing, especially for modules with irregular shapes or multi-layer structures, resulting in incomplete curing in some areas, reducing the production quality of the OLED module and not meeting the working requirements of OLED module production. Therefore, an OLED module and a production process are proposed. Summary of the Invention
[0005] (I) Technical Problems to be Solved
[0006] Aiming at the deficiencies of the prior art, the present invention provides an OLED module and a production process to solve the technical problems of huge production equipment investment, high operation and maintenance costs, and easy occurrence of dead corners during irradiation curing, which reduce the production quality of the OLED module.
[0007] (II) Technical Solutions
[0008] To achieve the above object, the present invention provides the following technical solutions: An OLED module, comprising:
[0009] A printed circuit board, on the assembly surface of which a display screen module is mounted. The input end of the display screen module is connected to a flexible circuit board. Pins are mounted on the back of the printed circuit board. The display screen module includes a glass substrate, an organic material coating, a pixel module, a polarizer, and a UV-cured MCL adhesive. A fluorocarbon compound coating and a polysiloxane coating are coated on the surface of the glass substrate;
[0010] The production process device of the OLED module includes a roller conveyor belt, a multi-channel coater, an ultraviolet light curing system, a heating and drying furnace, an automatic detection platform, and a packaging module. The ultraviolet light curing system includes a cabinet. An installation seat is installed inside the cabinet through a support. A driving motor is inserted into the upper side inside the installation seat, and the rotor of the driving motor penetrates through the corresponding position of the installation seat. A turntable is coaxially connected to the outer end of the rotor of the driving motor;
[0011] A swing frame is installed on the lower front side of the installation seat through a bearing. A flange is installed on the lower part of the swing frame through a bolt-nut fitting. A UV lamp tube is connected to the front part of the flange. A through groove is opened on the upper side inside the swing frame. A driving rod is inserted into the through groove. The rear end of the driving rod is connected to the corresponding position of the turntable. The multi-channel coater is installed above the roller conveyor belt. The ultraviolet light curing system is installed above the roller conveyor belt and at the outlet of the multi-channel coater. The heating and drying furnace is installed outside the roller conveyor belt and at the downstream station of the ultraviolet light curing system. The automatic detection platform is installed at the tail of the roller conveyor belt. The packaging module is installed at the tail of the automatic detection platform.
[0012] Roller conveyor belt: Photoelectric sensors are installed on both sides of the roller conveyor belt at positions below the multi-channel coater. Pneumatic clamps are installed on both upper sides of the roller conveyor belt corresponding to the photoelectric sensors. The installation height of the photoelectric sensors is adapted to the transmission plane of the glass substrate to ensure that the glass substrate can accurately block light during normal transmission. The emitting end and receiving end of the photoelectric sensor are both integrated inside the housing of the photoelectric sensor. The housing of the photoelectric sensor is fixed on the frames on both sides of the roller conveyor belt through brackets. The cylinder and solenoid valve of the pneumatic clamp are connected by an air pipe. The jaws of the pneumatic clamp are connected to the piston of the cylinder through a mechanical structure. The control systems of the photoelectric sensor and the pneumatic clamp are both connected by cable lines. Sensor signal acquisition modules, clamp control modules, human-machine interaction modules, and data recording modules are respectively installed inside the photoelectric sensor and the pneumatic clamp. The sensor signal acquisition module is responsible for collecting and processing the signals of the photoelectric sensor. The clamp control module sends control instructions to the clamp according to the sensor signals and preset logic. The human-machine interaction module provides an interaction interface between the operator and the system for setting parameters and viewing status. The data recording module is used to record relevant data during the production process.
[0013] Heating and drying furnace: The heating and drying furnace includes heating elements, temperature sensors, temperature controllers, and fans. The heating elements are connected to the power supply by cables. The temperature sensors are connected to the temperature controllers by signal lines. The fans are connected to the power supply and the temperature controllers by cables.
[0014] Automatic detection platform: High-precision cameras are installed above the automatic detection platform. The number of high-precision cameras is 3 - 6 groups. The high-precision cameras are respectively installed at different positions above the automatic detection platform. Lighting devices are installed at positions above the automatic detection platform corresponding to the high-precision cameras. Image acquisition cards are installed inside the high-precision cameras. The image acquisition cards are used to convert the analog electrical signals collected by the cameras into digital signals and transmit the digital signals to a computer for analysis.
[0015] Encapsulation module: The encapsulation module includes a thin-film encapsulation device, sensors, and an encapsulation material conveying system. The sensors include a temperature sensor, a thickness sensor, and a vacuum sensor. The temperature sensor is used to monitor the temperature during coating, curing, and deposition processes. The thickness sensor is used to measure the coating thickness of the sealing material or the deposition thickness of the thin film. The vacuum sensor is used to monitor the vacuum environment during thin-film deposition. Inside the thin-film encapsulation device, there are a control module, a process parameter management module, a data acquisition and analysis module, and a user interface module. The control module is used to control the startup, stop, and operating parameters of the encapsulation device. The process parameter management module is used to set and store the parameters of the encapsulation process. The data acquisition and analysis module is used to collect and analyze sensor data. The user interface module is used to provide an interaction interface between the operator and the software.
[0016] The present invention provides a production process for an OLED module, including:
[0017] S1. Pretreatment of the glass substrate: Place the glass substrate in the OLED module on the surface of the roller conveyor belt for transportation, and at the same time, coat a fluorocarbon compound coating and a polysiloxane coating on the surface of the glass substrate to ensure that no dust adheres to the surface of the glass substrate.
[0018] S2. Coating of organic materials: Transport the OLED module through the roller conveyor belt into the multi-channel coater, detect it through a photoelectric sensor, then control the pneumatic fixture to limit and fix the OLED module, and then coat the organic materials through the nozzles inside the multi-channel coater.
[0019] S3. Ultraviolet curing: The coated glass substrate continues to be transported to the ultraviolet curing system station through the roller conveyor belt, and then start the drive motor to drive the rotation of the turntable and the drive rod, so that the swing frame and the flange can be swung left and right through the through groove, and then the just-coated material layer can be quickly hardened by the UV lamp tubes to avoid changes caused by long-term exposure to air.
[0020] S4. Heating and drying: The cured OLED module continues to be transported into the heating and drying furnace through the roller conveyor belt to further strengthen the bonding force between the material layers and remove the residual solvent.
[0021] S5. Automatic detection: The dried OLED module is transported to the surface of the automatic detection platform, and image data is collected and analyzed through a high-precision camera to reject unqualified products.
[0022] S6. Encapsulation and packaging: The OLED module after completion of detection is placed inside the encapsulation module for packaging.
[0023] (III) Beneficial effects
[0024] Compared with the prior art, the present invention provides an OLED module and a production process, which have the following beneficial effects:
[0025] 1. For the OLED module and the production process, by simultaneously coating a fluorocarbon compound coating and a polysiloxane coating on the surface of the glass substrate of the OLED module, the light transmittance can be improved. After coating, the fluorocarbon compound coating and the polysiloxane coating can form a uniform and smooth surface. This smooth surface can reduce the scattering of light, enabling the light to pass through the substrate more directly, thereby improving the light transmittance of the OLED module. Moreover, the fluorocarbon compound coating has the characteristic of low surface energy, making it difficult for dust and oil contaminants to adhere to the surface, thus keeping the surface of the substrate clean. The polysiloxane coating can effectively prevent the generation and accumulation of static electricity, improving the precision of the production process flow of the OLED module;
[0026] 2. For the OLED module and the production process, by driving the rotation of the turntable and the driving rod with a driving motor, the swing frame and the flange can be driven to swing left and right through the through groove, so that the UV lamp tube can irradiate in all directions, making the UV light energy received by each part of the OLED module more uniform. Especially for modules with irregular shapes or multi-layer structures, the curing quality of the entire module is improved. And because the material can be cured more uniformly, the situation of secondary curing or rework due to incomplete local curing is reduced. This can improve production efficiency and reduce production costs in large-scale production. At the same time, uniform curing can make the internal structure of the material more regular, thereby improving the physical and chemical properties of the material and enhancing the production quality of the OLED module. BRIEF DESCRIPTION OF THE DRAWINGS
[0027] Figure 1 It is a schematic structural diagram of the OLED module of the present invention;
[0028] Figure 2 It is a block diagram of the display screen module of the present invention;
[0029] Figure 3 It is a schematic diagram of the mounting seat of the present invention;
[0030] Figure 4 It is a process flow diagram of the OLED module and the production process of the present invention.
[0031] In the figure: 1. Printed circuit board; 2. Display screen module; 3. Flexible circuit board; 4. Pin; 10. Mounting seat; 11. Driving motor; 12. Turntable; 13. Swing frame; 14. Through groove; 15. Driving rod; 16. Flange; 17. UV lamp tube. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.
[0033] Please refer to Figure 1 , a display screen module 2 is installed on the assembly surface of the printed circuit board 1. The input end of the display screen module 2 is connected to a flexible circuit board 3. Pins 4 are installed on the back of the printed circuit board 1. Please refer to Figure 2 , the display screen module 2 includes a glass substrate, an organic material coating, a pixel module, a polarizer, and UV-curable MCL glue. A fluorocarbon coating and a polysiloxane coating are coated on the surface of the glass substrate;
[0034] The production process device of the OLED module includes a roller conveyor belt, a multi-channel coater, an ultraviolet light curing system, a heating and drying furnace, an automatic detection platform, and a packaging module. The ultraviolet light curing system includes a cabinet. Please refer to Figure 4 , an installation seat 10 is installed inside the cabinet through a support. A driving motor 11 is inserted into the upper side inside the installation seat 10, and the rotor of the driving motor 11 penetrates through the corresponding position of the installation seat 10. A turntable 12 is coaxially connected to the outer end of the rotor of the driving motor 11;
[0035] A swing frame 13 is installed on the lower front side of the installation seat 10 through a bearing. A flange 16 is installed on the lower part of the swing frame 13 through a bolt and nut fitting. A UV lamp tube 17 is connected to the front part of the flange 16. A through groove 14 is opened on the upper side inside the swing frame 13. A driving rod 15 is inserted into the through groove 14. The rear end of the driving rod 15 is connected to the corresponding position of the turntable 12. The multi-channel coater is installed above the roller conveyor belt. The ultraviolet light curing system is installed above the roller conveyor belt and at the outlet of the multi-channel coater. The heating and drying furnace is installed outside the roller conveyor belt and at the downstream station of the ultraviolet light curing system. The automatic detection platform is installed at the tail of the roller conveyor belt. The packaging module is installed at the tail of the automatic detection platform.
[0036] Photoelectric sensors are installed on both sides of the roller conveyor belt at the lower part of the multi-channel coater. Pneumatic clamps are installed on both upper sides of the roller conveyor belt corresponding to the photoelectric sensors. The installation height of the photoelectric sensors is adapted to the transmission plane of the glass substrate to ensure that the glass substrate can accurately block light during normal transmission. The transmitting end and receiving end of the photoelectric sensor are both integrated inside the housing of the photoelectric sensor. The housing of the photoelectric sensor is fixed to the frame on both sides of the roller conveyor belt through brackets. The cylinder and solenoid valve of the pneumatic clamp are connected by an air pipe. The jaws of the pneumatic clamp are connected to the piston of the cylinder through a mechanical structure. The control systems of the photoelectric sensor and the pneumatic clamp are both connected by cable lines. Inside the photoelectric sensor and the pneumatic clamp, there are respectively installed a sensor signal acquisition module, a clamp control module, a human-machine interaction module, and a data recording module. The sensor signal acquisition module is responsible for collecting and processing the signals of the photoelectric sensor. The clamp control module sends control instructions to the clamp according to the sensor signals and preset logic. The human-machine interaction module provides an interaction interface between the operator and the system for setting parameters and viewing status. The data recording module is used to record relevant data during the production process.
[0037] The heating and drying furnace includes heating elements, temperature sensors, temperature controllers, and fans. The heating elements are connected to the power supply through cables. The temperature sensors are connected to the temperature controllers through signal lines. The fans are connected to the power supply and the temperature controllers through cables.
[0038] High-precision cameras are installed above the automatic detection platform. The number of high-precision cameras is 3 - 6 groups. The high-precision cameras are respectively installed in different positions above the automatic detection platform. Lighting devices are installed at positions corresponding to the high-precision cameras above the automatic detection platform. Image acquisition cards are installed inside the high-precision cameras. The image acquisition cards are used to convert the analog electrical signals collected by the cameras into digital signals and transmit the digital signals to a computer for analysis.
[0039] The encapsulation module includes thin-film encapsulation equipment, sensors, and an encapsulation material conveying system. The sensors include temperature sensors, thickness sensors, and vacuum sensors. The temperature sensors are used to monitor the temperature during coating, curing, and deposition processes. The thickness sensors are used to measure the coating thickness of the sealing material or the deposition thickness of the thin film. The vacuum sensors are used to monitor the vacuum environment during thin-film deposition.
[0040] Inside the thin-film encapsulation equipment, there are installed a control module, a process parameter management module, a data acquisition and analysis module, and a user interface module. The control module is used to control the start, stop, and operating parameters of the encapsulation equipment. The process parameter management module is used to set and store the parameters of the encapsulation process. The data acquisition and analysis module is used to collect and analyze sensor data. The user interface module is used to provide an interaction interface between the operator and the software.
[0041] Through a series of precise designs, advanced integrated design concepts and control technologies, this solution integrates multiple systems such as a roller conveyor belt, a multi-channel coater, an ultraviolet light curing system, a heating drying furnace, an automatic detection platform, and a packaging module. In the overall production process flow, the glass substrate can be pre-treated first, then the uniform coverage of each layer of material is completed by the multi-channel coater, followed by two processes of ultraviolet light curing and heating drying to ensure that the material layer is completely shaped. Subsequently, it enters the automatic detection platform for quality control, and finally is packaged and packed to generate the final product. The whole process is highly automated, which not only significantly improves the production efficiency and the yield rate, but also effectively reduces the risk of manual intervention and greatly reduces the manufacturing cost.
[0042] The core of this solution is that by simultaneously coating a fluorocarbon compound coating and a polysiloxane coating on the surface of the glass substrate of the OLED module, the light transmittance can be improved. After being coated, the fluorocarbon compound coating and the polysiloxane coating can form a uniform and smooth surface. This smooth surface can reduce the scattering of light, enabling the light to pass through the substrate more directly, thereby improving the light transmittance of the OLED module. Moreover, the fluorocarbon compound coating has the characteristic of low surface energy, making it difficult for dust and oil pollution to adhere to the surface, thus keeping the surface of the substrate clean. The polysiloxane coating can effectively prevent the generation and accumulation of static electricity, improving the precision of the production process flow of the OLED module.
[0043] At the same time, in the structural design of the ultraviolet light curing system, this solution drives the rotation of the turntable and the driving rod through a driving motor, thereby driving the left and right swing of the swing frame and the flange through the through groove, enabling the UV lamp tube to irradiate in all directions, making the ultraviolet light energy received by each part of the OLED module more uniform. Especially for modules with irregular shapes or multi-layer structures, the curing quality of the entire module is improved. And because the material can be cured more uniformly, the situation of secondary curing or rework due to incomplete local curing is reduced. This can improve the production efficiency and reduce the production cost in large-scale production. At the same time, uniform curing can make the internal structure of the material more regular, thereby improving the physical and chemical properties of the material and enhancing the production quality of the OLED module.
[0044] In summary, through a series of innovative designs and intelligent and integrated management strategies, this solution has successfully achieved a high degree of automation in the entire production process of the OLED module, not only significantly improving the production efficiency and the yield rate, but also effectively reducing the risk of manual intervention and greatly reducing the manufacturing cost. And in the entire production process of the OLED module, it is difficult for dust and oil pollution to adhere to the surface of the glass substrate, thus keeping the surface of the substrate clean and improving the precision of the production process flow of the OLED module.
[0045] Please refer toFigure 4 , the production process of the OLED module of the present invention includes the following processes:
[0046] S1. Pretreatment of the glass substrate. Place the glass substrate in the OLED module on the surface of the roller conveyor for transportation. At the same time, apply a fluorocarbon compound coating and a polysiloxane coating on the surface of the glass substrate to ensure that no dust adheres to the surface of the glass substrate. The precautions for this process are as follows: 1. Before placing the glass substrate on the roller conveyor, it is necessary to ensure that the surface of the roller conveyor is clean and free of impurities, and regularly clean the rollers to prevent dust or foreign objects remaining on the rollers from being transferred to the glass substrate and affecting the coating quality. 2. Check whether the rollers rotate smoothly to avoid uneven transportation of the glass substrate caused by roller jamming, resulting in uneven coating thickness. 3. Thoroughly stir the fluorocarbon compound coating and polysiloxane coating materials before use to ensure uniform mixing of the materials. For materials that have not been used for a long time, check whether there is precipitation or stratification. 4. Accurately control the dosage of the coating materials. According to the size of the glass substrate and the required thickness of the coating, adjust the parameters of the coating equipment to avoid too thick or too thin coatings;
[0047] S2. Coating of organic materials. Transport the OLED module through the roller conveyor into the multi-channel coater, detect it through a photoelectric sensor, then control the pneumatic fixture to limit and fix the OLED module, and then apply the organic materials through the nozzles inside the multi-channel coater. The precautions for this process are as follows: 1. Before using the multi-channel coater, conduct a comprehensive commissioning of the coater, check whether each channel of the coater is unobstructed, and whether the nozzles are blocked or damaged. If problems are found with the nozzles, clean or replace them in a timely manner to ensure accurate and uniform coating of the organic materials. 2. Adjust the coating parameters of the multi-channel coater, such as coating pressure and coating speed, to match the size of the OLED module and the required coating amount of the organic materials. 3. Ensure the sensitivity and accuracy of the photoelectric sensor, regularly calibrate the photoelectric sensor to prevent incorrect limit fixation of the OLED module by the pneumatic fixture due to sensor misjudgment. If the sensor fails, repair or replace it in a timely manner to ensure the normal operation of the entire process. 4. Adjust the clamping force of the pneumatic fixture to be moderate, and at the same time check the sealing performance of the pneumatic fixture to avoid unstable clamping force caused by air leakage;
[0048] S3. UV curing. The coated glass substrate group continues to be transported to the UV curing system station through the roller conveyor belt. Then, the driving motor is started to drive the rotation of the turntable and the driving rod, so that the left and right swinging of the swinging frame and the flange can be driven through the through groove. Furthermore, the just-coated material layer can be quickly hardened by the UV lamp tubes, avoiding changes caused by long-term exposure to air. The precautions for this process are as follows: 1. Regularly check the service life and luminous intensity of the UV lamp tubes. As the usage time increases, the luminous intensity of the UV lamp tubes may gradually decrease. When the luminous intensity is lower than a certain value, the organic materials may not be effectively cured. At this time, the UV lamp tubes need to be replaced in time to ensure the curing effect. 2. Accurately set the rotation speed and rotation direction of the driving motor. Because too fast rotation speed may lead to too large a swing amplitude, affecting the uniform irradiation of the UV light; too slow rotation speed may not achieve sufficient irradiation area, resulting in incomplete curing of the organic materials. At the same time, it is necessary to ensure that the rotation direction of the driving motor is correct, so that the swinging frame and the flange can swing left and right in the predetermined manner;
[0049] S4. Heating and drying. The cured OLED module continues to be transported to the inside of the heating and drying furnace through the roller conveyor belt to further consolidate the bonding force between the material layers and remove the residual solvent. The precautions for this process are as follows: 1. According to the type and coating thickness of the organic materials, reasonably set the parameters of the temperature, drying time and hot air circulation mode of the heating and drying furnace. If the temperature is too high, the organic materials will decompose or deform; if the temperature is too low or the drying time is insufficient, the residual solvent cannot be effectively removed, affecting the bonding force between the material layers. 2. During the drying process, closely monitor the temperature change in the heating and drying furnace to ensure that the temperature fluctuation is within the allowable range;
[0050] S5. Automatic detection. The dried OLED module is transported to the surface of the automatic detection platform, and image data is collected by a high-precision camera for analysis to remove unqualified products. The precautions for this process are as follows: 1. Regularly calibrate the high-precision camera, including the calibration of the focal length of the lens, the resolution of the image, and the color reduction parameters. 2. Check whether the installation position and angle of the camera have changed. During the production process, due to equipment vibration or human factors, the position and angle of the camera may shift, and it needs to be adjusted in time to ensure that complete and accurate image data can be collected. 3. Keep the detection environment of the automatic detection platform stable, including factors such as lighting conditions, temperature and humidity. The detection environment can be maintained stable by installing environmental control equipment such as a constant temperature and humidity box and a light-shielding cover;
[0051] S6. Encapsulation and packaging. The OLED module after inspection is placed inside the encapsulation module for packaging. Precautions for this process are as follows: 1. Before putting the OLED module into the encapsulation module, clean the inside of the encapsulation module to ensure there is no dust or debris. At the same time, check whether the encapsulation materials inside the encapsulation module are sufficient and whether the encapsulation equipment is working properly. 2. Adjust the encapsulation parameters of the encapsulation module according to the size and encapsulation requirements of the OLED module, such as encapsulation pressure, encapsulation temperature, and encapsulation time.
[0052] It should be noted that in this article, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device.
[0053] Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.
Claims
1. An OLED module production device, characterized in that: include: A roller conveyor belt, a multi-channel coating machine, an ultraviolet curing system, a heating and drying furnace, an automatic detection platform and a packaging module, wherein the ultraviolet curing system comprises a cabinet, a mounting seat (10) is mounted inside the cabinet via a tripod, a driving motor (11) is inserted into the upper side of the mounting seat (10), and a rotor of the driving motor (11) passes through a corresponding position of the mounting seat (10), and a turntable (12) is coaxially connected to the outer end of the rotor of the driving motor (11); A swing frame (13) is mounted on the lower front side of the mounting seat (10) via a bearing, a flange (16) is mounted on the lower part of the swing frame (13) via bolt and nut fittings, a UV lamp (17) is connected to the front part of the flange (16), a through slot (14) is provided on the upper inner side of the swing frame (13), a driving rod (15) is inserted into the through slot (14), and a rear end of the driving rod (15) is connected to a corresponding position of the turntable (12); The multi-channel coating machine is installed above the roller conveyor belt, the ultraviolet curing system is installed above the roller conveyor belt and located at the exit of the multi-channel coating machine, the heating and drying furnace is installed outside the roller conveyor belt and located at the downstream station of the ultraviolet curing system, the automatic detection platform is installed at the tail of the roller conveyor belt, and the packaging module is installed at the tail of the automatic detection platform; Photoelectric sensors are installed at the positions of both sides of the roller conveyor belt located at the bottom of the multi-channel coater, and pneumatic clamps are installed at the positions corresponding to the photoelectric sensors on both sides of the upper part of the roller conveyor belt. The installation height of the photoelectric sensor is adapted to the transmission plane of the glass substrate to ensure that the glass substrate can accurately block light during normal transmission; The transmitting end and the receiving end of the photoelectric sensor are integrated inside the housing of the photoelectric sensor, the housing of the photoelectric sensor is fixed to the frames on both sides of the roller conveyor belt through a bracket, the cylinder and the solenoid valve of the pneumatic clamp are connected through an air pipe, the clamping claw of the pneumatic clamp is connected to the piston of the cylinder through a mechanical structure, and the control systems of the photoelectric sensor and the pneumatic clamp are connected through a cable; The photoelectric sensor and the pneumatic fixture are respectively installed with a sensor signal acquisition module, a fixture control module, a human-computer interaction module and a data recording module. The sensor signal acquisition module is responsible for collecting and processing the signal of the photoelectric sensor. The fixture control module sends control instructions to the fixture according to the sensor signal and the preset logic. The human-computer interaction module provides an interactive interface between the operator and the system for setting parameters and viewing the status. The data recording module is used to record relevant data in the production process. The heating and drying oven comprises a heating element, a temperature sensor, a temperature controller and a fan. The heating element is connected to a power source via a cable, the temperature sensor is connected to a temperature controller via a signal line, and the fan is connected to the power source and the temperature controller via cables.
2. The OLED module production device according to claim 1, characterized in that: A high-precision camera is installed above the automatic detection platform. The high-precision cameras are installed at different positions above the automatic detection platform. Lighting equipment is installed at positions above the automatic detection platform corresponding to the high-precision cameras. An image acquisition card is installed inside the high-precision camera. The image acquisition card is used to convert the analog electrical signals collected by the camera into digital signals and transmit the digital signals to a computer for analysis.
3. The OLED module production device according to claim 1, characterized in that: The packaging module includes thin film packaging equipment, sensors and a packaging material delivery system. The sensors include temperature sensors, thickness sensors and vacuum sensors. The temperature sensor is used to monitor the temperature during coating, curing and deposition. The thickness sensor is used to measure the coating thickness of the sealing material or the deposition thickness of the thin film. The vacuum sensor is used to monitor the vacuum environment during thin film deposition.
4. The OLED module production device according to claim 3, characterized in that: The thin film encapsulation equipment is internally equipped with a control module, a process parameter management module, a data acquisition and analysis module and a user interface module. The control module is used to control the start, stop and operation parameters of the encapsulation equipment, the process parameter management module is used to set and store the parameters of the encapsulation process, the data acquisition and analysis module is used to collect sensor data and perform analysis and processing, and the user interface module is used to provide an interactive interface between the operator and the software.
5. A production process of an OLED module, comprising an OLED module production device according to any one of claims 1 to 4, characterized in that: The process steps include: S1: Pre-treatment of glass substrates: placing the glass substrates in the OLED module on the surface of the roller conveyor belt for transportation, and coating the surface of the glass substrates with fluorocarbon coatings and polysiloxane coatings to ensure that dust does not adhere to the surface of the glass substrates; S2 organic material coating, transporting the OLED module to the inside of the multi-channel coating machine through a roller conveyor belt, and detecting it through a photoelectric sensor, then controlling the pneumatic clamp to limit and fix the OLED module, and then coating the organic material through the nozzle inside the multi-channel coating machine; S3 The UV-cured and coated glass substrates are transported to the UV-curing system station through roller conveyor belts, and then the drive motor is started to drive the turntable and drive rod to rotate, thereby driving the swing frame and flange to swing left and right through the through slot, and then the UV lamp tube quickly hardens the newly coated material layer to avoid changes caused by long-term exposure to air; S4 heats and dries the cured OLED module and continues to be transported to the interior of the heating and drying furnace via a roller conveyor belt to further consolidate the bonding between the material layers and remove residual solvents; S5 automatically inspects and transports the dried OLED modules to the surface of the automatic inspection platform, and uses a high-precision camera to collect image data for analysis to remove unqualified products; After S6 packaging and testing, the OLED module is placed inside the packaging module for packaging.
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