Flexible OLED display module warping processing device and method

Abstract

The invention provides a warping processing device and method for a flexible OLED display module. The warping processing device comprises an upper jig and a lower jig, the upper jig comprises a first extrusion part, a second extrusion part and a connecting part, the first extrusion part and the second extrusion part are connected through the connecting part, and a cavity is formed by the first surface of the first extrusion part, the second surface of the second extrusion part and the third surface of the connecting part; the lower jig comprises a carrying table, the carrying table comprises a supporting surface, a first fixing part, a second fixing part, a first pressure-bearing surface arranged corresponding to the first extrusion part and a second pressure-bearing surface arranged corresponding to the second extrusion part, and the first pressure-bearing surface and the second pressure-bearing surface are oppositely arranged on the two sides of the supporting surface. The first fixing part and the second fixing part are arranged at the two ends of the carrying table respectively and are adjacent to the first pressure-bearing surface and the second pressure-bearing surface. The flexible OLED display module is bent in the reverse direction of the original warping direction, warping of the display module is counteracted, elements in the display module are protected, and extrusion is avoided.

Description

Technical Field

[0001] The present application relates to the technical field of display modules, and in particular to a device and method for processing warping of a flexible OLED display module. Background Art

[0002] Since the flexible OLED (Organic Light-Emitting Diode) display module is light and thin, after the module is bonded, the module material will be affected by the bonding pressure, causing the display module to warp, and the warping direction is the non-display surface. From the perspective of product quality, the warped module may affect the connection stability of internal electronic components, increase the risk of product failure, and reduce the reliability and service life of the product. In terms of user experience, the warped screen not only affects the flatness and aesthetics of the appearance, but may also cause problems such as uneven color and inconsistent brightness on the screen display, seriously affecting the visual effect. In addition, for manufacturers, the module warping problem increases the defective rate in the production process, increases production costs, reduces production efficiency, and hinders the rapid iteration and large-scale production of products. Therefore, the module warping problem is a key issue that needs to be solved urgently, and no better solution has been proposed yet. Summary of the invention

[0003] The embodiments of the present application provide a flexible OLED display module warping processing device and method to solve one or more of the above-mentioned technical problems.

[0004] In the first aspect, an embodiment of the present application provides a flexible OLED display module warping processing device, comprising: an upper jig and a lower jig; the upper jig comprises a first extrusion part, a second extrusion part and a connecting part, the first extrusion part and the second extrusion part are connected by the connecting part, and the first surface of the first extrusion part, the second surface of the second extrusion part and the third surface of the connecting part form a cavity; the lower jig comprises a carrier, the carrier comprises a supporting surface, a first fixing part, a second fixing part, a first pressure-bearing surface corresponding to the first extrusion part and a second pressure-bearing surface corresponding to the second extrusion part, the first pressure-bearing surface and the second pressure-bearing surface are arranged opposite to each other on both sides of the supporting surface, and the first fixing part and the second fixing part are respectively arranged adjacent to the first pressure-bearing surface and the second pressure-bearing surface at both ends of the carrier.

[0005] In a second aspect, an embodiment of the present application provides a method for processing warping of a flexible OLED display module, comprising: obtaining warping status data of the flexible OLED display module; determining control parameters based on the warping status data, and controlling the upper jig of the above-mentioned flexible OLED display module warping processing device to move to the lower jig according to the control parameters to correct the flexible OLED display module.

[0006] Compared with the related art, the present application has the following advantages:

[0007] The present application provides a warping treatment device and method for a flexible OLED display module, including: an upper jig and a lower jig; the upper jig includes a first extrusion part, a second extrusion part and a connecting part, the first extrusion part and the second extrusion part are connected by the connecting part, and a cavity is formed by a first surface of the first extrusion part, a second surface of the second extrusion part and a third surface of the connecting part; the lower jig includes a carrier, the carrier includes a supporting surface, a first fixing part, a second fixing part, a first bearing surface corresponding to the first extrusion part, and a second bearing surface corresponding to the second extrusion part, the first bearing surface and the second bearing surface are oppositely arranged on both sides of the supporting surface, and the first fixing part and the second fixing part are respectively adjacent to the first bearing surface and the second bearing surface at both ends of the carrier. According to the embodiments of the present application, a flexible OLED display module with warping can be placed on the supporting surface of the carrier of the lower jig, and by controlling the connecting part, the first extrusion part and the second extrusion part of the upper jig are driven to squeeze the border part of the flexible OLED display module at the same time; during the squeezing process, the flexible OLED display module is bent in the opposite direction to the original warping direction. Since the adhesive material in the module stack will creep during bending, the stress reaches a new balance after removing the lower jig, and at the same time, the warping of the module is offset; during the squeezing process, the reversely bent display module is located in the cavity formed by the first surface of the first extrusion part, the second surface of the second extrusion part and the third surface of the connecting part, protecting the components in the display module from being squeezed; during the squeezing process, the first fixing part and the second fixing part can play a role in fixing the flexible OLED display module.

[0008] The above description is only an overview of the technical solution of the present application. In order to be able to understand the technical means of the present application more clearly, it can be implemented according to the content of the specification. And in order to make the above and other purposes, features and advantages of the present application more obvious and understandable, the specific embodiments of the present application are specifically exemplified below. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] In the drawings, unless otherwise specified, the same reference numerals throughout the several views denote the same or similar components or elements. These drawings are not necessarily drawn to scale. It should be understood that these drawings only depict some embodiments in accordance with the present application and should not be regarded as limiting the scope of the present application.

[0010] Figure 1 FIG. shows a schematic structural diagram of a warping treatment device for a flexible OLED display module provided in an embodiment of the present application;

[0011] Figure 2 Shows a front view schematic diagram of the fitting state of an upper jig and a lower jig provided in an embodiment of the present application;

[0012] Figure 3 Shows an overall structure schematic diagram of the fitting state of an upper jig and a lower jig provided in an embodiment of the present application;

[0013] Figure 4 Shows an overall structure schematic diagram of the disassembled state of an upper jig and a lower jig provided in an embodiment of the present application;

[0014] Figure 5 Shows a top view of the overall structure of the disassembled state of an upper jig and a lower jig provided in an embodiment of the present application;

[0015] Figure 6 Shows a flowchart of a method for warpage treatment of a flexible OLED display module provided in an embodiment of the present application;

[0016] Figure 7 Shows a block diagram of an electronic device for implementing an embodiment of the present application.

[0017] Explanation of reference numerals in the drawings:

[0018] 100, upper jig; 101, first extrusion part; 102, second extrusion part; 103, connecting part; 104, first surface; 105, second surface; 106, third surface; 107, first groove; 108, second groove; 200, lower jig; 201, carrier; 202, support surface; 203, first fixing part; 204, second fixing part; 205, first bearing surface; 206, second bearing surface; 300, cavity; 400, display module. Detailed implementation manners

[0019] In the following, only some exemplary embodiments are simply described. As those skilled in the art can recognize, the described embodiments can be modified in various different ways without departing from the concept or scope of the present application. Therefore, the drawings and the description are considered to be exemplary in nature and not restrictive.

[0020] In the current era of rapid development of electronic devices, laptops and tablet computers, as important tools for people's daily work, study and entertainment, are constantly moving towards the direction of being thinner and lighter. The thinner and lighter design not only meets the users' pursuit of portability, but also improves the aesthetic degree and user experience of the products to a certain extent.

[0021] For notebooks and tablets, the use of flexible OLED screens has become the preferred solution for achieving thinness and lightness. Flexible OLED has many advantages such as self-luminescence, bendability, high contrast, and bright colors. Compared with traditional LCD screens, it can effectively reduce the thickness and weight of the screen without sacrificing the display effect. At the same time, in order to further reduce the overall weight of the module, the thinning process of module materials such as CG (Cover Glass) is a key step. By thinning these materials, the thickness of the module can be significantly optimized, thus laying the foundation for the thinness of the entire machine.

[0022] However, in the actual production process, as the support materials such as CG are thinned, a thorny problem gradually emerges - the module warping phenomenon. When the support material is thinned, its physical properties change to a certain extent. During the module bonding process, the bonding pressure is difficult to be evenly distributed. This uneven pressure will directly lead to uneven stress distribution inside the adhesive. Since the adhesive is the key part that tightly connects the various components together, the uneven stress makes it impossible for the adhesive to maintain the stable state of the various components after curing, which in turn causes the finished module to bend and deform, which is the so-called module warping.

[0023] The emergence of module warping has brought major challenges to the process of thinning and lightening notebooks and tablet computers. The module warping problem has become a key problem that needs to be solved in the process of thinning and lightening notebook and tablet computer modules. Solving this problem requires in-depth research and exploration in multiple fields such as material science, process engineering, and mechanical analysis. By optimizing material properties, improving bonding processes, and designing reasonable module structures, we can find effective solutions to promote the continuous development of notebooks and tablet computers on the road to thinning and lightening, and meet the market demand for thinner and higher-quality electronic devices.

[0024] The present application provides a flexible OLED display module warping processing device, based on which the warped module can be placed on the lower fixture stage with the display surface facing downward, and then the upper fixture is used to press down the CG frame parts on the left and right sides of the module, avoiding the PNL (Panel, display panel), so that the display module is bent in the opposite direction of the warping, and left to stand. Since the glue in the module stack will creep during bending, the stress will be balanced again after the fixture is removed, and the warping of the module will be offset at the same time. By setting the corresponding bending compensation amount for modules in different warping states, the purpose of reducing the warping of the OLED display module can be achieved.

[0025] To facilitate understanding of the technical solutions of the embodiments of the present application, the following describes the related technologies of the embodiments of the present application. The following related technologies can be combined with the technical solutions of the embodiments of the present application as optional solutions, and they all belong to the protection scope of the embodiments of the present application.

[0026] The technical solution of the present application and how the technical solution of the present application solves the foregoing technical problems will be described in detail below with specific embodiments. The several specific embodiments listed may be combined with each other, and the same or similar concepts or processes may not be repeated in some embodiments. The embodiments of the present application will be described in detail below with reference to the accompanying drawings.

[0027] An embodiment of the present application provides a warping treatment device for a flexible OLED display module. As Figure 1 shown in the structural schematic diagram of a warping treatment device for a flexible OLED display module according to an embodiment of the present application, the device may include: an upper jig and a lower jig; the upper jig includes a first pressing part 101, a second pressing part 102 and a connecting part 103, the first pressing part and the second pressing part are connected by the connecting part, and a cavity is formed by a first surface 104 of the first pressing part, a second surface 105 of the second pressing part and a third surface 106 of the connecting part; the lower jig includes a carrier 201, the carrier includes a supporting surface 202, a first fixing part 203, a second fixing part 204, a first bearing surface 205 corresponding to the first pressing part and a second bearing surface 206 corresponding to the second pressing part, the first bearing surface and the second bearing surface are oppositely arranged on both sides of the supporting surface, and the first fixing part and the second fixing part are respectively adjacent to the first bearing surface and the second bearing surface at both ends of the carrier.

[0028] In the embodiment of the present application, the upper jig and the lower jig are used to cooperate to adjust the flexible OLED display module in the direction opposite to the warping direction. Considering that the warping direction is usually the non-display surface, the display surface of the flexible OLED display module with warping can be placed face down on the supporting surface of the carrier of the lower jig, and by controlling the connecting part of the upper jig to drive the first pressing part and the second pressing part of the upper jig to move downward to the lower jig at the same time until the first pressing part and the second pressing part of the upper jig respectively contact both ends of the flexible OLED display module and continue to move downward a certain distance. During the correction process, the first fixing part and the second fixing part are used to prevent the upper jig from moving in the direction perpendicular to the downward pressing direction, so that the downward pressing process of the upper jig is stably carried out along the direction perpendicular to the first bearing surface and the second bearing surface.

[0029] In the embodiment of the present application, the first pressing part and the second pressing part are symmetrically arranged at both ends of the connecting part. The first fixing part and the second fixing part are symmetrically arranged at both ends of the carrier.

[0030] In the embodiment of the present application, refer to Figure 1, the surface of the first pressing part facing the second pressing part, i.e., the first surface, the surface of the second pressing part facing the first pressing part, i.e., the second surface, and the surface of the connecting part facing the direction where the first surface and the second surface are located, i.e., the third surface form a cavity. For example, it can be a "U"-shaped cavity. This cavity corresponds to the PNL area, ensuring that the sensitive PNL is avoided during downward pressing, preventing extrusion damage to it during the process of downward pressing and correcting the display module, and achieving damage-free protection of sensitive components.

[0031] In the embodiment of the present application, the upper jig body can be made of a high-strength polymer composite material, which combines lightness and high strength characteristics to ensure the rigid demand during the downward pressing process. In addition, the flexible OLED display module warping treatment device provided by the embodiment of the present application can cover various warping characteristics, effectively reduce production costs in actual production, and has high production adaptability.

[0032] In the embodiment of the present application, for the carrier of the lower jig, aviation aluminum alloy material can be selected. After high-precision numerical control machining, the flatness of the carrier surface is guaranteed to reach within ±0.05 mm, providing a stable reference for placing the warped module. A layer of polyimide film with anti-static and low thermal expansion coefficient covers the supporting surface of the carrier, so as to maintain dimensional stability when dealing with the workshop temperature fluctuation (23 ± 2 °C). Cooperating with the strictly controlled workshop temperature and humidity environment, it creates stable conditions for the lamination adhesive of the display module to creep, and guarantees the stress balance effect. The thickness of this film can be set according to actual needs. For example, the thickness can be set to about 0.05 mm, which can not only prevent the damage of electronic components in the OLED module caused by static electricity, but also maintain dimensional stability in the temperature change environment and reduce the influence of thermal expansion and contraction on the correction effect.

[0033] In the embodiment of the present application, in terms of appearance, the significantly improved flatness makes the visual effect of the OLED display module better, eliminates the surface unevenness caused by warping, and improves the product aesthetics. Functionally, it reduces the display abnormalities caused by warping, such as local distortion of the picture, color unevenness, etc. At the same time, it reduces the assembly difficulty, avoids poor contact caused by warping, and improves the product assembly yield. The flexible OLED display module warping treatment device provided by the embodiment of the present application can contribute to the improvement of product quality.

[0034] In an embodiment of the present application, a warpage treatment device for a flexible OLED display module is provided, including: an upper jig and a lower jig; the upper jig includes a first extrusion part, a second extrusion part and a connecting part, the first extrusion part and the second extrusion part are connected through the connecting part, and a cavity is formed by a first surface of the first extrusion part, a second surface of the second extrusion part and a third surface of the connecting part; the lower jig includes a carrier, the carrier includes a supporting surface, a first fixing part, a second fixing part, a first bearing surface corresponding to the first extrusion part, and a second bearing surface corresponding to the second extrusion part, the first bearing surface and the second bearing surface are oppositely arranged on both sides of the supporting surface, and the first fixing part and the second fixing part are respectively adjacent to the first bearing surface and the second bearing surface at both ends of the carrier. According to the embodiment of the present application, a flexible OLED display module with warpage can be placed on the supporting surface of the carrier of the lower jig, and by controlling the connecting part, the first extrusion part and the second extrusion part of the upper jig are driven to simultaneously extrude the frame part of the flexible OLED display module; during the extrusion process, the flexible OLED display module is bent in the direction opposite to the original warpage direction. Since the adhesive material in the module stack will creep during bending, the stress reaches a new balance after removing the lower jig, and at the same time, the warpage of the module is offset; during the extrusion process, the reversely bent display module is located in the cavity formed by the first surface of the first extrusion part, the second surface of the second extrusion part and the third surface of the connecting part, protecting the components in the display module from being extruded; during the extrusion process, the first fixing part and the second fixing part can play a role in fixing the flexible OLED display module.

[0035] In a possible implementation manner, the first extrusion part is provided with a first downward pressing contact area, and the second extrusion part is provided with a second downward pressing contact area; the first downward pressing contact area is a first groove 107, and the second downward pressing contact area is a second groove 108.

[0036] In this possible implementation manner, by respectively arranging the first groove and the second groove on the first extrusion part and the second extrusion part, the frame on both sides of the display module can be better fitted. The shape of the groove can be set according to actual needs, for example, it can be a regular shape or an irregular shape, and the embodiment of the present application does not make specific limitations on this.

[0037] In a possible implementation manner, the first groove includes an adjacent first contact surface and a second contact surface; the second groove includes an adjacent third contact surface and a fourth contact surface.

[0038] In this possible implementation, the first contact surface, the second contact surface, the third contact surface, and the fourth contact surface can all be flat or uneven surfaces. The angle between the first contact surface and the second contact surface can be set according to actual needs, such as 90 degrees or greater than 90 degrees. The angle between the third contact surface and the fourth contact surface can be set according to actual needs, such as 90 degrees or greater than 90 degrees. The area of the first contact surface and the area of the second contact surface can be the same or different. The area of the third contact surface and the area of the fourth contact surface can be the same or different.

[0039] In the embodiments of the present application, by providing that the first groove includes adjacent first and second contact surfaces, and the second groove includes adjacent third and fourth contact surfaces, the two sides of the display module can be better fitted to the frame.

[0040] In a possible implementation, silica gel strips are respectively provided on the first contact surface, the second contact surface, the third contact surface, and the fourth contact surface.

[0041] In the embodiments of the present application, by providing customized silica gel strips on the first contact surface, the second contact surface, the third contact surface, and the fourth contact surface, the shape of the silica gel strips can be accurately fitted to the CG frames on the left and right sides of the module, and the contact width is not less than a preset value, which can be 1 mm for example.

[0042] In this possible implementation, the upper jig presses down on the contact part to customize the silica gel strips for the CG frames on the left and right sides of the module, achieving non-destructive protection for sensitive components.

[0043] In a possible implementation, the top end of the first pressing part is connected to one end of the connecting part, and the top end of the second pressing part is connected to the other end of the connecting part. As Figure 2 shown in the front view schematic diagram of the fitting state of an upper jig and a lower jig, Figure 2 the effect when the upper jig 100 and the lower jig 200 are fitted together is shown. When they are fitted together, the display module 400 can be bent in the cavity 300. The top end of the first pressing part is connected to one end of the connecting part, and the top end of the second pressing part is connected to the other end of the connecting part, thereby overall reducing the volume of the flexible OLED display module warping processing device. In a possible implementation, the middle part of the first pressing part is connected to one end of the connecting part, and the middle part of the second pressing part is connected to the other end of the connecting part.

[0044] In a possible implementation, a plurality of positioning grooves are provided on the supporting surface; the plurality of positioning grooves are evenly distributed.

[0045] In this possible implementation, multiple positioning grooves are evenly distributed over the entire area or a partial area of the support surface. The specific positions of the positioning grooves need to be set according to the positioning protrusions at the bottom of the display module. For example, in one possible implementation, multiple positioning grooves are distributed around the carrier stage, matching the positioning protrusions at the bottom of the module, achieving fast and accurate positioning with a positioning accuracy of up to ±0.1 mm, effectively preventing the module from shifting during the correction process.

[0046] In one possible implementation, the middle part of the support surface is a flat surface, and both sides of the flat surface are curved surfaces arranged oppositely.

[0047] In this possible implementation, as Figure 1 shown, the middle part of the support surface, that is, the central area of the carrier stage, is a flat surface area to ensure that the display module is not easily slid when placed. Both sides of the flat surface area are curved surface areas, so as to adapt to the bending of the display module when the upper jig moves towards the lower jig.

[0048] In one possible implementation, a pressure sensor is provided on the lower surface of the carrier stage, and a driving device connecting member is provided on the upper surface of the upper jig.

[0049] In this possible implementation, by providing a pressure sensor on the lower surface of the carrier stage, during the downward pressing process of the upper jig, the pressure on the lower surface can be detected in real time in cooperation with the pressure sensor, so as to accurately control the downward pressing parameters according to different warping degrees. By providing a driving device connecting member on the upper surface of the upper jig, it is convenient to install the upper jig on other control devices, so as to control the movement of the upper jig towards the lower jig by using the control device. Among them, the control device can be a downward pressing control system dedicated to automatically and accurately pressing the flexible OLED display module warping treatment device.

[0050] A displacement sensor can be installed on the upper jig to detect the displacement of the upper jig in real time, so as to accurately control the downward pressing parameters according to different warping degrees. It should be noted that the displacement sensor can be installed on the upper jig or near the upper jig, as long as it can ensure that the displacement situation of the upper jig can be monitored. Additionally, it should be noted that in the embodiments of the present application, the movement of the upper jig towards the lower jig can also be manually controlled, and the control method when the upper jig moves towards the lower jig can be selected according to actual needs, and the embodiments of the present application do not make specific limitations on this.

[0051] In one possible implementation, the upper jig can drive the downward pressing action through a high-precision electric lead screw. The stroke resolution of the electric lead screw reaches 0.01 mm, and the downward pressing speed can be adjusted as needed within the range of 1 - 10 mm / s. The downward bending amount can also be adjusted manually.

[0052] In a possible implementation, the connecting portion is a rectangular body, the width of the rectangular body is the same as the length of the first pressing portion, and the length of the first pressing portion is the same as the length of the second pressing portion.

[0053] In this possible implementation, refer to Figure 3 the overall structural schematic diagram of the upper fixture and the lower fixture in the fitting state shown, Figure 4 the overall structural schematic diagram of the upper fixture and the lower fixture in the disassembled state shown, and Figure 5 the overall top view of the upper fixture and the lower fixture in the disassembled state shown. Figures 3 - 5 The yellow area shown in is the display module. The connecting portion can be a rectangular body. The width of the rectangular body is the same as the length of the first pressing portion, and the length of the first pressing portion is the same as the length of the second pressing portion. Thus, a flexible OLED display module warping processing device with a regular shape is obtained as a whole, which is convenient for storage and transportation.

[0054] In a possible implementation, when the first surface contacts the first bearing surface and the second surface contacts the second bearing surface, the distance between the plane where the upper surface of the upper fixture is located, the plane where the upper surface of the first fixing portion is located, and the plane where the upper surface of the second fixing portion is located is less than a preset distance threshold.

[0055] In this possible implementation, the preset distance threshold can be set according to actual requirements. Refer to Figure 3 , which shows the positional relationship between the plane where the upper surface of the upper fixture is located, the plane where the upper surface of the first fixing portion is located, and the plane where the upper surface of the second fixing portion is located when the preset distance value is small and the first surface contacts the first bearing surface and the second surface contacts the second bearing surface.

[0056] Next, a specific embodiment is used to illustrate the usage process of the device. The operation process specifically may include but is not limited to the following steps:

[0057] 1) Module placement: The operator wears anti-static work clothes and carefully places the warped OLED display module on the lower fixture stage in a dust-free workshop with a cleanliness of 100 levels, ensuring that the display surface faces downwards. Use the positioning groove of the stage to quickly align with the bottom positioning platform of the display module, and gently place the module to make it firmly in place.

[0058] 2) Bending application: Start the program of pressing down the upper fixture. The control system drives the electric lead screw to drive the upper fixture to press down evenly according to the preset control parameters. During the pressing process, the pressure sensor monitors the pressure value in real time. Once it exceeds the set range, it immediately feeds back and adjusts the driving current of the electric lead screw to ensure a stable and accurate pressure is applied to the CG border of the display module. At the same time, the displacement sensor accurately measures the pressing stroke, and combines with the initial warpage data of the module to ensure that the module reaches the predetermined bending degree in the opposite direction of the warpage.

[0059] 3) Static adjustment: After the pressing is completed, the module remains in the bent state and is static for 15 - 30 seconds. During this period, due to the viscoelasticity of the adhesive material in the module stack, creep will occur under the action of stress, promoting the redistribution of internal stress. The workshop environmental temperature is controlled at 23 ± 5°C, and the humidity is controlled at 50% ± 5%, providing stable temperature and humidity conditions for the creep of the adhesive material to ensure the smooth progress of the stress balance process.

[0060] 4) Fixture removal: After the static state ends, the upper fixture slowly rises and is removed at the preset return speed (5 mm / s). The operator gently takes out the module from the carrier using anti-static tweezers and transfers it to the optical detection platform to detect the flatness of the display module.

[0061] The embodiment of the present application also provides a method for warpage treatment of a flexible OLED display module, as Figure 6 shown in the flowchart of the method for warpage treatment of a flexible OLED display module according to an embodiment of the present application. The method may include:

[0062] S601, obtaining the warpage state data of the flexible OLED display module;

[0063] In the embodiment of the present application, the warpage state data of the flexible OLED display module refers to the relevant data of the flexible OLED display module that needs to be warped and adjusted currently. For example, it includes, but is not limited to, detailed information such as the maximum amplitude, direction, and curvature change of the warpage.

[0064] In a possible implementation manner, bending compensation covering various warpage characteristics can be formulated based on big data to guide the process standard. For example, the warpage state data of the flexible OLED display module can be obtained according to the following steps:

[0065] 1) Data collection: Sampling and warpage detection are carried out on each batch of OLED display modules, including detailed information such as the maximum amplitude, direction, and curvature change of warpage, to construct a large database sample of module warpage. 2) Model construction and analysis: The collected data is imported into professional finite element analysis software, and combined with the material properties and structural parameters of the OLED module, a reference table of bending compensation amounts for different warpage characteristics is generated. 3) Real-time compensation: During the actual production process, the warpage amplitude and direction of the current display module are measured, and based on the reference table of bending compensation amounts, the warpage state data of the flexible OLED display module is determined.

[0066] S602. According to the warpage state data, control parameters are determined, and the upper jig of the flexible OLED display module warpage processing device is controlled to move downward relative to the lower jig according to the control parameters, so as to correct the flexible OLED display module.

[0067] In this possible implementation, the flexible OLED display module warpage processing device includes a jig combination of a high-precision lower jig stage and an upper jig with an avoidance structure. Combined with technical means such as the bending compensation amount setting generated by data collection and model analysis, and a strictly controlled operation process, it achieves the technical effect of accurately applying a bending force opposite to the warpage direction to the OLED display module in different warpage states, avoiding damage to sensitive components, and efficiently adapting to diverse production requirements, thereby solving the warpage of the OLED display module caused by the manufacturing process. According to the warpage state data, it automatically matches and determines control parameters, thereby controlling the downward pressing process of the upper jig, and realizing "one-to-one" precise compensation and correction for different warped modules.

[0068] In this possible implementation, with the help of a high-precision jig design, the flatness of the lower jig stage can reach within ±0.01 mm, providing a precise reference for module placement. The downward pressing stroke resolution of the upper jig is 0.01 mm. Combined with real-time monitoring and feedback by pressure sensors and displacement sensors, it can accurately control the downward pressing parameters according to different warpage degrees, thereby ensuring high warpage correction accuracy.

[0069] Figure 7 It is a block diagram of an electronic device for implementing the embodiments of the present application. As Figure 7 shown, the electronic device includes: a memory 701 and a processor 702. The memory 701 stores a computer program that can run on the processor 702. When the processor 702 executes the computer program, the methods in the above embodiments are implemented. The number of the memory 701 and the processor 702 can be one or more.

[0070] The electronic device further includes:

[0071] A communication interface 703, used for communicating with external devices and performing data interaction and transmission.

[0072] If the memory 701, the processor 702, and the communication interface 703 are implemented independently, the memory 701, the processor 702, and the communication interface 703 can be interconnected through a bus and communicate with each other. This bus can be an Industry Standard Architecture (ISA) bus, a Peripheral Component Interconnect (PCI) bus, an Extended Industry Standard Architecture (EISA) bus, etc. This bus can be divided into an address bus, a data bus, a control bus, etc. For ease of representation, Figure 7 only a thick line is used to represent it in the figure, but it does not mean that there is only one bus or one type of bus.

[0073] Optionally, in specific implementation, if the memory 701, the processor 702, and the communication interface 703 are integrated on a chip, the memory 701, the processor 702, and the communication interface 703 can communicate with each other through an internal interface.

[0074] An embodiment of the present application provides a computer-readable storage medium, which stores a computer program. When the program is executed by a processor, the method provided in the embodiment of the present application is implemented.

[0075] An embodiment of the present application provides a computer program product. The computer program product includes a computer program. When the computer program is executed by a processor, the method provided in the embodiment of the present application is implemented.

[0076] An embodiment of the present application further provides a chip. The chip includes a processor, which is used to call and run instructions stored in a memory, so that a communication device installed with the chip executes the method provided in the embodiment of the present application.

[0077] An embodiment of the present application further provides a chip, including: an input interface, an output interface, a processor, and a memory. The input interface, the output interface, the processor, and the memory are connected through an internal connection path. The processor is used to execute code in the memory. When the code is executed, the processor is used to execute the method provided in the embodiment of the application.

[0078] It should be understood that the above-mentioned processor can be a Central Processing Unit (CPU), or other general-purpose processors, Digital Signal Processors (DSPs), Application Specific Integrated Circuits (ASICs), Field Programmable Gate Arrays (FPGAs), or other programmable logic devices, discrete gate or transistor logic devices, discrete hardware components, etc. The general-purpose processor can be a microprocessor or any conventional processor, etc. It is worth noting that the processor can be a processor that supports the Advanced RISC Machines (ARM) architecture.

[0079] Furthermore, optionally, the above-mentioned memory can include a read-only memory and a random access memory. The memory can be a volatile memory or a non-volatile memory, or can include both volatile and non-volatile memories. Among them, the non-volatile memory can include a Read-Only Memory (ROM), a Programmable ROM (PROM), an Erasable PROM (EPROM), an Electrically EPROM (EEPROM), or a flash memory. The volatile memory can include a Random Access Memory (RAM), which is used as an external cache. By way of example but not limitation, many forms of RAM are available. For example, Static Random Access Memory (SRAM), Dynamic Random Access Memory (DRAM), Synchronous DRAM (SDRAM), Double Data Rate SDRAM (DDR SDRAM), Enhanced SDRAM (ESDRAM), Sync link DRAM (SLDRAM), and Direct Rambus RAM (DR RAM).

[0080] In the above embodiments, it can be implemented in whole or in part by software, hardware, firmware, or any combination thereof. When implemented using software, it can be implemented in whole or in part in the form of a computer program product. The computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, the processes or functions according to the present application are generated in whole or in part. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable devices. The computer instructions can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another computer-readable storage medium.

[0081] In the description of this specification, the descriptions with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples", etc. mean that the specific features, structures, materials, or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. Moreover, the specific features, structures, materials, or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, without contradiction, those skilled in the art can combine and combine the different embodiments or examples described in this specification and the features of different embodiments or examples.

[0082] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first" and "second" can explicitly or implicitly include at least one of the features. In the description of the present application, "a plurality of" means two or more unless otherwise specifically defined.

[0083] Any process or method described in the flowchart or otherwise described herein can be understood to represent a module, segment, or portion of code including one or more executable instructions for implementing a specific logical function or process. And the scope of the preferred embodiments of the present application includes additional implementations, where the functions can be executed in a substantially simultaneous manner or in a reverse order according to the functions involved, rather than in the order shown or discussed.

[0084] The logic and / or steps described in the flowchart or otherwise described herein, for example, can be considered as a sequenced list of executable instructions for implementing a logical function, and can be specifically implemented in any computer-readable medium for use by an instruction execution system, apparatus, or device (such as a computer-based system, a system including a processor, or other systems that can fetch and execute instructions from the instruction execution system, apparatus, or device), or in combination with these instruction execution systems, apparatus, or devices.

[0085] It should be understood that each part of the present application can be implemented by hardware, software, firmware, or a combination thereof. In the above embodiments, multiple steps or methods can be implemented by software or firmware stored in a memory and executed by a suitable instruction execution system. All or part of the steps of the method in the above embodiments can be completed by a program instructing relevant hardware. The program can be stored in a computer-readable storage medium. When the program is executed, it includes one or a combination of the steps of the method embodiment.

[0086] In addition, each functional unit in various embodiments of the present application can be integrated into a processing module, or each unit can exist physically alone, or two or more units can be integrated into one module. The above integrated module can be implemented in the form of hardware or in the form of a software functional module. When the above integrated module is implemented in the form of a software functional module and sold or used as an independent product, it can also be stored in a computer-readable storage medium. The storage medium can be a read-only memory, a magnetic disk, an optical disk, etc.

[0087] As mentioned above, the above are only exemplary embodiments of the present application, but the protection scope of the present application is not limited thereto. Any person skilled in the art in the technical scope recorded in the present application can easily think of various changes or substitutions, and these should all be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A flexible OLED display module warping processing device, comprising: Upper fixture and lower fixture; The upper jig comprises a first extrusion portion, a second extrusion portion and a connection portion, the first extrusion portion and the second extrusion portion are connected by the connection portion, and a first surface of the first extrusion portion, a second surface of the second extrusion portion and a third surface of the connection portion form a cavity; The lower fixture includes a carrier, which includes a supporting surface, a first fixing portion, a second fixing portion, a first pressure-bearing surface corresponding to the first extrusion portion, and a second pressure-bearing surface corresponding to the second extrusion portion, the first pressure-bearing surface and the second pressure-bearing surface are arranged opposite to each other on both sides of the supporting surface, and the first fixing portion and the second fixing portion are respectively arranged adjacent to the first pressure-bearing surface and the second pressure-bearing surface at two ends of the carrier.

2. The device according to claim 1, wherein: The first pressing portion is provided with a first pressing contact area, and the second pressing portion is provided with a second pressing contact area; the first pressing contact area is a first groove, and the second pressing contact area is a second groove.

3. The device according to claim 2, wherein: The first groove includes a first contact surface and a second contact surface that are adjacent to each other; and the second groove includes a third contact surface and a fourth contact surface that are adjacent to each other.

4. The device according to claim 3, wherein: The first contact surface, the second contact surface, the third contact surface and the fourth contact surface are respectively provided with silicone strips.

5. The device according to claim 1, wherein: The top end of the first extrusion portion is connected to one end of the connection portion, and the top end of the second extrusion portion is connected to the other end of the connection portion.

6. The device according to claim 1, wherein: The support surface is provided with a plurality of positioning grooves; the plurality of positioning grooves are evenly distributed.

7. The device according to claim 1, wherein: The middle part of the support surface is a plane, and two sides of the plane are curved surfaces arranged opposite to each other.

8. The device according to claim 1, wherein: A pressure sensor is arranged on the lower surface of the carrier, and a driving device connecting piece is arranged on the upper surface of the upper fixture.

9. The device according to claim 1, wherein: The connecting portion is a rectangular body, the width of the rectangular body is the same as the length of the first extruded portion, and the length of the first extruded portion is the same as the length of the second extruded portion.

10. According to the device of claim 1, when the first surface contacts the first pressure-bearing surface and the second surface contacts the second pressure-bearing surface, the distance between the plane where the upper surface of the upper fixture is located, the plane where the upper surface of the first fixing part is located, and the plane where the upper surface of the second fixing part is located is less than a preset distance threshold.

11. A method for processing warpage of a flexible OLED display module, comprising: Obtaining warping state data of flexible OLED display module; According to the warping state data, control parameters are determined, and the upper jig of the flexible OLED display module warping processing device according to any one of claims 1 to 10 is controlled to move toward the lower jig according to the control parameters to correct the flexible OLED display module.

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