A display screen processing method and a display screen semi-finished product

Abstract

The present application provides a method for processing a display screen and a semi-finished product of the display screen, which relates to the technical field of electronic products and solves the problem of display module peeling caused by the release film being torn off during the display screen processing process. Specifically, a method for processing a display screen is provided, comprising: removing a first portion of a display module blank to form a first corner edge of the display module. A first release film with an adhesive layer is stacked on the light-emitting surface of the display module blank, and the second corner edge of the adhesive layer is aligned with the first corner edge in the stacking direction of the adhesive layer and the first release film. The display module blank, the adhesive layer and the first release film located outside the other at least partial edges are removed, and the other at least partial edges are the other at least partial edges of the main body except the first corner edge, and the first release film located outside the first corner edge forms a first handle. The processing of the display module blank is divided into two steps of removal to avoid peeling of the display panel when the release film is torn off.

Description

Technical Field

[0001] The present application relates to the technical field of electronic products, and in particular to a processing method of a display screen and a semi-finished product of the display screen. Background Art

[0002] At present, in the manufacturing process of display modules, a display module motherboard is usually manufactured on a substrate first. The display module motherboard includes a plurality of display module blanks arranged in an array, and the display module motherboard is cut to obtain a plurality of display module blanks. The display module blank is larger than the display module actually installed in the electronic device, and a processing margin is reserved for the secondary cutting of the display module.

[0003] Before the secondary cutting of the display module, the adhesive material is attached to the display surface of the display module blank, and the surface of the adhesive material facing away from the display module blank is attached to the release film. In order to ensure that the edge of the display module blank and the edge of the adhesive material are aligned, the edges of the display module blank, the adhesive material and the release film are cut as a whole, thereby aligning the edge of the display module blank, the edge of the release film and the edge of the adhesive material. When it is necessary to attach a transparent cover plate, the release film is torn off the surface of the adhesive material, and the transparent cover plate is attached to the surface of the adhesive material facing away from the display module blank.

[0004] However, due to the high temperature generated during the cutting process, the release film and the adhesive layer are prone to melt, and the melted release film and adhesive layer overflow to the underlying display module. When the release film is torn off from the surface of the adhesive, the release film is prone to peel off the underlying display module together, thereby increasing the processing cost of the display module and reducing the production capacity of the display module. Summary of the invention

[0005] The embodiments of the present application provide a display screen processing method and a semi-finished display screen product, which are used to solve the problem of display module peeling caused by tearing off the release film during the display screen processing process.

[0006] To achieve the above objectives, the embodiments of the present application adopt the following technical solutions:

[0007] In a first aspect, the present application provides a method for processing a display screen, the processing method comprising:

[0008] Step S1, removing a first portion of a display module blank to form a first corner edge of the display module;

[0009] Step S2, laminating a first release film with an adhesive layer on the light-emitting surface of the display module blank, and making the adhesive layer between the display module blank and the first release film, and aligning the second corner edge of the adhesive layer with the first corner edge in the laminating direction of the adhesive layer and the first release film; at least a portion of the first release film is located outside the first corner edge;

[0010] Step S3, removing the display module blank, the adhesive layer and the first release film located outside other at least partial edges of the display module; wherein the other at least partial edges of the display module are other at least partial edges of the main body except the first corner edge, and the first release film located outside the first corner edge forms a first handle.

[0011] Through the processing of the above processing method, the processing of the display module blank is divided into two steps of removal. In the first step of the removal process, only one of the corner edges of the display module blank used to form the main body is removed, that is, the first corner edge. In the second step of the removal process, the stacked display module blank, the adhesive layer and the first release film are removed together, and the first corner is avoided. Therefore, in the second step of the removal process, the melting problem caused by the removal process between the display module blank, the adhesive layer and the first release film layer will not appear at the first corner edge. Further, the problem of increased adhesion between the film layers caused by melting will not appear at the first corner edge. When the first release film needs to be torn off from the surface of the adhesive layer, the first handle of the first release film is set at the first corner edge, so that the first release film can be peeled off from the adhesive layer through the first handle, and the peeling of the first release film will not cause the film layers under the first release film to be peeled off, thereby ensuring the yield rate in the display production process and improving the production capacity of the display production and processing.

[0012] In one of the embodiments, the first release film can be torn off by the first handle along the diagonal direction of the main body toward the first corner edge, that is, the first release film can be torn off at a 45-degree angle upward, so that the adhesive force generated by tearing the film between the first release film and the adhesive layer at the first corner edge can be more evenly dispersed, thereby further avoiding the peeling between the individual film layers caused by tearing the film.

[0013] In a possible implementation of the first aspect, before laminating the first release film with the adhesive layer on the light emitting surface of the display module blank, the processing method further includes:

[0014] Step S101, removing a second portion of the display module blank to form a third corner edge of the display module;

[0015] The method of laminating a first release film with a glue layer on a light-emitting surface of a display module blank comprises:

[0016] Step S201, laminating a first release film with an adhesive layer on a light-emitting surface of a display module blank, wherein in a laminating direction of the adhesive layer and the first release film, a second corner edge of the adhesive layer is aligned with the first corner edge, and a fourth corner edge of the adhesive layer is aligned with the third corner edge in the laminating direction of the adhesive layer and the first release film; at least a portion of the first release film is located outside the third corner edge;

[0017] Removing the display module blank, the adhesive layer, and the first release film located outside at least a portion of the other edges of the display module includes:

[0018] Step S301, removing the display module blank, the adhesive layer and the first release film outside the other sides of the display module, the other sides of the display module are the other sides of the main body except the first corner side and the third corner side, and the first release film outside the third corner side forms a second handle.

[0019] In this way, through the processing method, the first handle and the second handle of the first release film are set at the first corner edge and the third corner edge, so that the first release film can be peeled off from the adhesive layer through the first handle or the second handle, and the peeling of the first release film will not cause the film layers under the first release film to be peeled off, thereby ensuring the yield rate in the display screen production process and improving the production capacity of the display screen production and processing.

[0020] In a possible implementation manner of the first aspect, after removing the display module blank, the adhesive layer, and the first release film located outside at least part of the other edges of the display module, the processing method further includes:

[0021] Step S401, removing the first release film by means of the first handle or the second handle;

[0022] Step S501 , disposing a light-transmitting cover plate on the surface of the adhesive layer facing away from the main body.

[0023] The first release film is torn off by the first handle or the second handle to expose the adhesive layer. The transparent cover is bonded to the main body, that is, the display surface of the display module, through the adhesive layer. The transparent cover is used to protect the main body from water, dust and scratches.

[0024] In a possible implementation of the first aspect, the display module includes a main body, the main body includes a first edge and a second edge, and the first corner edge is connected between the first edge and the second edge. In a possible implementation of the first aspect, the main body also includes a third edge, the third edge is opposite to the second edge, and the third corner edge is connected between the first edge and the third edge.

[0025] In a possible implementation of the first aspect, the first corner edge is an arc edge. The arc edge can more smoothly connect the adjacent first edge and the second edge, and when the first release film is torn off from the adhesive layer, the arc edge will not form a sharp corner, thereby avoiding stress concentration at the sharp corner when the first release film is torn off, increasing the bonding strength at the sharp corner, and thus avoiding the risk of the film layers under the first release film being peeled off. This further ensures the yield rate in the display screen production process and improves the production capacity of the display screen production and processing.

[0026] In a possible implementation of the first aspect, the main body further includes a fourth edge opposite to the first edge, and the display module further includes a lead portion, which is located on a side of the first edge away from the fourth edge and connected to the first edge.

[0027] The lead part is provided with a gold finger (i.e., a pin on the circuit board and a signal transmission pin, and the metal lead of the signal transmission pin is connected to the driving circuit and the pixel circuit of the main body. The gold finger is connected to the signal transmission pin through the circuit board by point-to-point crimping to realize the transmission of display signals, further improving the control efficiency of the display screen, and can be processed according to different electronic devices to match the lead part, thereby improving the rationality and efficiency of the internal space layout of the electronic device.

[0028] In a possible implementation of the first aspect, the lead portion is trapezoidal, the trapezoid includes opposite long sides and short sides, and the long side is connected to the first edge. The lead portion of the trapezoidal structure can not only ensure the connection area between the lead portion and the main body, but also facilitate the display screen to bend the lead portion toward the inside of the electronic device during the installation process, so as to improve the rationality and efficiency of the internal space layout of the electronic device.

[0029] In a possible implementation manner of the first aspect, removing the display module blank, the adhesive layer, and the first release film located outside other portions of the display module includes:

[0030] The laser process is used to remove the display module blank, the adhesive layer and the first release film outside the other parts of the display module. The laser process has higher cutting quality, finer cutting seams, narrower heat-affected zones, faster cutting speeds, higher efficiency and lower cutting costs.

[0031] In a possible implementation of the first aspect, before the first release film with the adhesive layer is laminated and arranged on the light-emitting surface of the display module blank, the second release film is removed; wherein the second release film is laminated and arranged on the surface of the adhesive layer that is away from the first release film. The adhesive is in the form of a double-sided adhesive, and before the adhesive layer is arranged on the main body, the adhesive layer is protected by the second release film to prevent contaminants from adhering to the adhesive layer, thereby further improving the display quality of the display screen.

[0032] In a second aspect, the present application further provides a semi-finished product of a display screen, the semi-finished product of the display screen includes a display module, a glue layer and a first release film, the display module includes a main body, and the main body has a first corner edge. The glue layers are stacked on the display surface of the main body, the glue layer has a second corner edge, and in the stacking direction of the glue layer and the first release film, the second corner edge is aligned with the first corner edge. The first release film is stacked on the surface of the glue layer away from the main body, and the first release film includes a third part, the third part is located outside the first corner edge, and the third part forms a first handle.

[0033] In this way, by setting the first handle of the first release film at the first corner edge, the first release film can be peeled off from the adhesive layer through the first handle, and the peeling of the first release film will not cause the film layers under the first release film to be peeled off, thereby ensuring the yield rate in the display screen production process and improving the production capacity of the display screen production and processing.

[0034] In a possible implementation of the second aspect, the main body further has a third corner edge;

[0035] The adhesive layer further has a fourth corner edge, and in the lamination direction of the adhesive layer and the first release film, the third corner edge is aligned with the fourth corner edge;

[0036] The first release film also includes a fourth portion, which is located outside the third corner edge and forms a second handle.

[0037] In this way, by arranging the first handle and the second handle of the first release film at the first corner edge and the third corner edge, the first release film can be peeled off from the adhesive layer by the first handle or the second handle, and the peeling of the first release film will not cause the film layers under the first release film to be peeled off, thereby ensuring the yield rate in the display screen production process and improving the production capacity of the display screen production and processing.

[0038] In a possible implementation manner of the second aspect, the main body includes a second edge and a third edge opposite to each other, and a first edge located between the second edge and the third edge, the first corner edge is connected between the first edge and the second edge, and the second corner edge is connected between the first edge and the third edge;

[0039] The display module also includes a lead portion, which is arranged at the first edge of the main body.

[0040] The lead part is provided with a gold finger (i.e., a pin on the circuit board and a signal transmission pin, and the metal lead of the signal transmission pin is connected to the driving circuit and the pixel circuit of the main body. The gold finger is connected to the signal transmission pin through the circuit board by point-to-point crimping to realize the transmission of display signals, further improving the control efficiency of the display screen, and can be processed according to different electronic devices to match the lead part, thereby improving the rationality and efficiency of the internal space layout of the electronic device. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] Figure 1 A perspective view of an electronic device provided for some embodiments of the present application;

[0042] Figure 2 A structural diagram of an electronic device in a half-folded state provided by some embodiments of the present application;

[0043] Figure 3A structural diagram of an electronic device in a folded state provided by some embodiments of the present application;

[0044] Figure 4 for Figure 1 A schematic diagram of a cross-sectional structure of a flexible display screen cut along line AA;

[0045] Figure 5 A schematic diagram of the structure of a display module motherboard provided in some embodiments of the present application;

[0046] Figure 6 for Figure 5 The schematic diagram of the structure of the module motherboard when viewed from the Z1 direction is shown in the middle;

[0047] Figure 7 for Figure 6 A schematic diagram of the structure of a display module blank obtained after cutting the display module motherboard;

[0048] Figure 8 A schematic diagram of a structure of a first-cut display panel and a stacked functional layer provided in some embodiments of the present application;

[0049] Fig. 9 A schematic diagram of the structure of the adhesive material provided in some embodiments of the present application;

[0050] Fig.10 for Figure 8 A schematic diagram of the structure of the flexible display screen when viewed from the Z2 direction;

[0051] Fig.11 A schematic diagram of a processing process of a display screen processing method provided in some embodiments of the present application;

[0052] Fig.12 A schematic diagram of the structure of a display module blank provided in some other embodiments of the present application when it undergoes step S1;

[0053] Fig.13 A schematic diagram of the structure of a display module blank provided in some other embodiments of the present application when it undergoes step S1;

[0054] Fig.14 A schematic diagram of a structure of a first part, a glue layer and a first release film stacked in some embodiments of the present application;

[0055] Fig.15 for Fig.14 A schematic diagram of the structure of the first release film is observed from the Z3 direction and hidden;

[0056] Fig.16 A schematic structural diagram of a main body obtained after processing steps S1 to S3 of a display module blank provided in some embodiments of the present application;

[0057] Fig.17 A schematic diagram of the structure of the part to be removed in step S3 of the processing method provided in some embodiments of the present application;

[0058] Fig.18 A schematic diagram of the structure of the part to be removed in step S3 of the processing method provided in some other embodiments of the present application;

[0059] Fig.19 A schematic diagram of a processing process of a display screen processing method provided in some embodiments of the present application;

[0060] Fig. 20 A schematic diagram of a processing process of a display screen processing method provided in some further embodiments of the present application;

[0061] Fig.21 For passing Fig. 20 A schematic diagram of the structure of a display screen obtained by the processing method;

[0062] Fig. 22 A schematic diagram of a processing process of a display screen processing method provided in some further embodiments of the present application;

[0063] Fig.23 A schematic diagram of a processing process of a display screen processing method provided in some further embodiments of the present application;

[0064] Fig.24 for Fig. 22 and Fig.23 A schematic diagram of the structure of the lead blank;

[0065] Fig.25 for Fig. 22 and Fig.23 A schematic diagram of the structure of the lead portion formed by processing the lead portion blank;

[0066] Fig.26 for Fig. 22 and Fig.23 A schematic diagram of the structure of the removal path of the lead blank processing;

[0067] Fig. 27 A schematic diagram of the structure of the adhesive material provided in some embodiments of the present application;

[0068] Fig.28 A schematic structural diagram of a semi-finished display screen provided in some embodiments of the present application.

[0069] Reference numerals

[0070] 100, electronic device; 110, display module motherboard; 111, lower protective layer; 112, upper protective layer; 114, display module; 10, flexible display screen; 11, light-transmitting cover plate; 12, display panel; 121, display surface; 122, non-display surface;

[0071] 30, display module blank; 30a, main body blank; 30b, lead blank; 30b1, second part; 30b2, fifth side; 30b3, sixth side; 30b4, seventh side; 30b5, eighth side;

[0072] 30c, first angle region; 30d, second angle region; 30e, first side; 30f, second side; 30g, third side; 30h, first through hole; 30ci, second angle region;

[0073] 31, display module; 311, main body; 311a, first corner edge; 311b, first edge; 311c, second edge; 311d, third edge; 311e, fourth edge; 311f, third corner edge; 311g, fifth corner edge; 311h, sixth corner edge;

[0074] 312, lead portion; 3121, fifth edge; 3122, sixth edge; 3123, seventh edge; 3124, eighth edge;

[0075] 13. Support plate; 14. Protective film; 15. Functional layer;

[0076] 16, adhesive material; 161, adhesive material layer; 162, first release film; 162a, first handle; 162b, second handle; 163, second release film;

[0077] 101, first display area; 102, second display area; 103, third display area;

[0078] 20. Shell; 21. First shell; 211. First front shell; 212. First rear cover; 213. Driver chip;

[0079] 22. Second shell; 221. Second front shell; 222. Second rear cover; 23. Hinge. DETAILED DESCRIPTION

[0080] In some embodiments, the terms "first", "second", "third", and "fourth" are used for descriptive purposes only and are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first", "second", "third", and "fourth" may explicitly or implicitly include one or more of the features.

[0081] In some embodiments, the terms "comprises," "comprising," or any other variation thereof are intended to encompass non-exclusive inclusion, such that a process, method, article, or device that includes a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of additional identical elements in the process, method, article, or device that includes the element.

[0082] It should be understood that the orientation or position relationship indicated by the terms "inside" and "outside" etc. in the above text is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention; the orientation words "inside and outside" refer to the inside and outside relative to the contour of each component itself.

[0083] The present application provides an electronic device, which is a type of electronic device with a folding display screen. The electronic device can be a user equipment (UE) or a terminal device (terminal), etc. For example, the electronic device can be a personal digital assistant (PDA), a handheld device with wireless communication function, a computing device, a vehicle-mounted device, a wearable device, a virtual reality (VR) terminal device, an augmented reality (AR) terminal device, a terminal in industrial control (industrial control), a terminal in self-driving, a terminal in remote medical, a terminal in smart grid (smart grid), a terminal in transportation safety (transportation safety), a terminal in smart city (smart city), and a terminal in smart home (smart home). Among them, large-screen display terminals include but are not limited to smart screens, tablet computers (portable android devices, PADs), laptops, desktop computers, televisions, projectors and other devices.

[0084] See also Figure 1 , Figure 1A three-dimensional diagram of an electronic device 100 provided for some embodiments of the present application. This embodiment and the embodiments below are exemplified by taking the electronic device 100 as a mobile phone. The electronic device 100 is approximately in the shape of a rectangular plate. On this basis, in order to facilitate the description of the embodiments below, an XYZ coordinate system is established, and the width direction of the electronic device 100 is defined as the X-axis direction, the length direction of the electronic device 100 is defined as the Y-axis direction, and the thickness direction of the electronic device 100 is defined as the Z-axis direction. It can be understood that the coordinate system setting of the electronic device 100 can be flexibly set according to actual needs, and no specific limitation is made here. In some other embodiments, the shape of the electronic device 100 can also be a square flat plate, a circular flat plate, an elliptical flat plate, etc., which are not specifically limited here.

[0085] Please continue reading Figure 1 , the electronic device 100 includes a housing 20 and a display screen, and the display screen is connected to the housing 20. The display screen can be a straight display screen or a flexible display screen 10. The present application is described by taking the display screen as a flexible display screen 10 as an example, but this is not a special limitation of the present application, that is, the electronic device 100 of the present application can also be a straight display screen. The housing 20 may include a first housing 21, a second housing 22 and a hinge 23. The first housing 21 and the second housing 22 are respectively located on both sides of the hinge 23. The first housing 21 and the second housing 22 are respectively connected to the hinge 23. For example, the first housing 21 and the second housing 22 can be respectively connected to the hinge 23 by welding or fastener locking.

[0086] See also Figure 2 and Figure 3 , Figure 2 A structural diagram of an electronic device 100 in a half-folded state provided in some embodiments of the present application, Figure 3 A structural diagram of a folded state of an electronic device 100 provided for some embodiments of the present application. The first shell 21 and the second shell 22 can be rotated and folded relative to the hinge 23, respectively. When the first shell 21 and the second shell 22 are close to each other and stacked on each other, the electronic device 100 is in a folded state. When the first shell 21 and the second shell 22 move away from each other from the stacked state, and the first shell 21 and the second shell 22 rotate until they cannot rotate, the electronic device 100 is in an unfolded state. The process of the first shell 21 and the second shell 22 from the folded state to the unfolded state is an unfolding process, and the process from the unfolded state to the folded state is a folding process. Exemplarily, the number of the first shell 21 and the second shell 22 can both be one. When the electronic device 100 is in a folded state, the first shell 21 and the second shell 22 are stacked to present a two-layer structure.

[0087] The flexible display screen 10 is used to display images, videos, etc. The flexible display screen 10 includes a first display area 101, a second display area 102, and a third display area 103. The first display area 101 is arranged corresponding to the first shell 21. The second display area 102 is arranged corresponding to the second shell 22. The third display area 103 is arranged corresponding to the hinge 23. The flexible display screen 10 itself has a bendable performance and can be deformed after being subjected to external force. When the first shell 21 and the second shell 22 are in a folded state, the flexible display screen 10 is in a bent state. The first display area 101 and the third display area 103 of the flexible display screen 10 are close to each other, and the third display area 103 can be bent into an arc state. When the first shell 21 and the second shell 22 are in an unfolded state, the flexible display screen 10 is in an unfolded state, so that the first display area 101, the second display area 102, and the third display area 103 are flat.

[0088] The electronic device 100 is in Figure 1 When the electronic device 100 is in the unfolded state, a large screen display can be realized to provide the user with more abundant information and bring the user a better use experience. Figure 3 In the folded state shown, the size of the electronic device 100 is reduced, making it convenient to carry.

[0089] It should be noted that Figure 3 The electronic device 100 shown is an inward-folding display device, that is, when the electronic device 100 is in a folded state, the housing 20 protects the outside of the flexible display screen 10, and the flexible display screen 10 is invisible to the user, which can prevent the flexible display screen 10 from being scratched by hard objects. In other embodiments, the electronic device 100 described in the present application may also be an outward-folding display device, that is, when the electronic device 100 is in a folded state, the flexible display screen 10 is located on the outside of the housing 20, and the flexible display screen 10 is visible to the user, and video and image display can be realized in the folded state. The following embodiments are described on the basis that the electronic device 100 is an inward-folding display device, which cannot be regarded as a special limitation on the structural form of the electronic device 100.

[0090] See also Figure 4 , Figure 4 for Figure 1A schematic diagram of a cross-sectional structure of an electronic device cut along line AA in FIG. The first shell 21 may include a first front shell 211 and a first back cover 212 connected together. The second shell 22 may include a second front shell 221 and a second back cover 222 connected together. The hinge 23 is connected between the first front shell 211 and the second front shell 221. A portion of the flexible display screen 10 is carried on the first front shell 211, a portion is carried on the second front shell 221, and the other portion is carried on the hinge 23. The first back cover 212 is located on a side of the first front shell 211 away from the flexible display screen 10, and a first accommodating space C1 is formed between the first back cover 212 and the first front shell 211. The second back cover 222 is located on a side of the second front shell 221 away from the flexible display screen 10, and a second accommodating space C2 is formed between the second back cover 222 and the second front shell 221. The first accommodating space C1 and the second accommodating space C2 are used to accommodate electronic components such as a main board, a sub-board, a speaker module, a camera module, and a battery. In addition, please continue to refer to Figure 4 , the surface of the first front shell 211 facing the flexible display screen 10 is also provided with a driving chip 213, and the driving chip 213 is used to drive the flexible display screen 10 to display. In other embodiments, the driving chip 213 can also be arranged on the surface of the second front shell 221 facing the flexible display screen 10. In this embodiment, it should be noted that the first back cover 212 and the second back cover 222 can also be replaced with a display screen (such as a liquid crystal display screen), so that the folding display device 100 still has the function of video and image display in the folded state.

[0091] Please continue reading Figure 4 The structure of the flexible display screen 10 is described in detail below. The flexible display screen 10 includes a light-transmitting cover plate 11, a display panel 12, a support plate 13 and a protective film 14 which are stacked.

[0092] Understandably, Figure 4 The flexible display screen 10 includes some film layers, the size and structure of which are not affected by the Figure 4 In addition to these film layers, the flexible display screen 10 may also include other film layers, such as a polarizer, a buffer layer, a shielding layer, etc., which are not specifically limited here.

[0093] The transparent cover plate 11 is used to provide waterproof, dustproof and scratch-proof protection for the display panel 12. The material of the transparent cover plate 11 includes but is not limited to plastic. In other embodiments, the flexible display screen 10 may not be provided with the transparent cover plate 11.

[0094] The display panel 12 is a main component for displaying images and videos. Specifically, the display panel 12 may be an organic light-emitting diode (OLED) display panel, a microorganic light-emitting diode (microorganic light-emitting diode) display panel, or a quantum dot light-emitting diode (QLED) display panel. The display panel 12 has a display side and a back side opposite to the display side. The display side of the display panel 12 refers to the side of the display panel 12 that displays an image or video, and the user can view the image or video displayed by the display panel 12 from the display side. The light-transmitting cover plate 11 is located on the display side.

[0095] The support plate 13 is also called "bamboo book" and is located on the back side of the display panel 12. The support plate 13 supports the display panel 12. On this basis, the material of the support plate 13 is usually metal such as stainless steel and titanium alloy. These metals have a certain hardness and a large elastic modulus, which can improve the hardness and bending resilience of the flexible display screen 10.

[0096] The protective film 14 is stacked on the surface of the transparent cover plate 11 facing away from the display panel 12, and is used to protect the flexible display screen 10. The size of the protective film 14 can be consistent with the size of the transparent cover plate 11, or it can be slightly larger than the size of the transparent cover plate 11. It should be noted here that the protective film 14 is slightly larger than the size of the transparent cover plate 11, which means that the length and width of the protective film 14 are larger than the length and width of the transparent cover plate 11 by no more than 1 mm. The portion of the protective film 14 that is larger than the transparent cover plate 11 can be folded toward the transparent cover plate 11 to wrap around the peripheral side wall of the transparent cover plate 11, thereby protecting the flexible display screen 10 in all directions.

[0097] The film layers of the flexible display screen 10 are stacked and bonded by a transparent adhesive layer. The transparent adhesive layer can be an OCA transparent adhesive layer. The OCA transparent adhesive layer is colorless and transparent, has a light transmittance of more than 95%, has good bonding strength, can be cured at room temperature or medium temperature, and has the characteristics of small curing shrinkage. The transparent adhesive layer can also be an OCR transparent adhesive layer, which is a liquid transparent adhesive layer. The liquid transparent adhesive layer has stronger fluidity and better filling properties. It is more suitable for the bonding of the curved surface of the flexible display screen 10, and the bonding rate is higher. The material of the transparent adhesive layer may include one or more of silicone, polyacrylate, epoxy resin, and polyurethane. The transparent adhesive layer can be formed by coating or deposition. The coating method refers to applying the liquid transparent adhesive layer to the surface of the base film layer by roller coating or spraying, and then curing to strengthen the hardness of the transparent adhesive layer, thereby forming a solid transparent adhesive layer.

[0098] The deposition method includes physical deposition or chemical deposition, in which the gaseous substance is physically or chemically treated to form a light-transmitting adhesive layer in a liquid state on the surface of the base film layer, and then solidified to form a light-transmitting adhesive layer.

[0099] See also Figure 5 , Figure 5 A schematic diagram of the structure of a display module motherboard 110 provided for some embodiments of the present application. In the manufacturing process of the flexible display screen 10, the display module motherboard 110 is first processed, and the display module motherboard 110 includes a plurality of sub-display panels arranged in an array. The display module motherboard 110 may include a lower protective layer 111, a display panel 12, and an upper protective layer 112. Specifically, the display panel 12 includes a display surface 121 and a non-display surface 122 arranged opposite to each other, the upper protective layer 112 is arranged on the display surface 121 of the display panel 12, and the lower protective layer 111 is arranged on the non-display surface 122 of the display panel 12.

[0100] See also Figure 6 , Figure 6 for Figure 5 The structure diagram of the display module motherboard 110 when viewed from the Z1 direction is shown in FIG. The display module motherboard 110 is usually cut by a laser beam to obtain a sub-display panel. Of course, other cutting methods can also be used for cutting, which is not particularly limited here. Figure 6 The dotted line in is the cutting path for cutting the display module motherboard 110. In this embodiment, a rectangular display screen is used as an example for explanation. In some other embodiments, the cutting path can also be set to a circular, elliptical, triangular, irregular, etc., to obtain a circular, elliptical, triangular, or irregular display screen. The process generally includes: using a laser beam to perform coarse-grained cutting of the upper protective layer 112 to obtain a larger cutting opening to determine the cutting position of the display panel 12, and then using a femtosecond laser beam at the cutting opening to perform fine-grained cutting of the display panel 12 and the lower protective layer 111 to obtain sub-display screens. Among them, the cross-sectional area of ​​the carbon dioxide laser beam is larger than the cross-sectional area of ​​the femtosecond laser beam.

[0101] See also Figure 7 , Figure 7 for Figure 6 The structure diagram of the display module blank 30 obtained by cutting the display module motherboard 110 in FIG. Figure 7 The dotted line in is the shape and size of the display module 31 finally installed in the housing 20 , that is, the display module blank 30 obtained after cutting the display module motherboard 110 is larger than the display module 31 actually installed in the housing 20 . Figure 7 d in FIG. 3 is the size difference between the display module blank 30 and the display module 31 . In this way, the display module blank 30 reserves a processing size for the display module 31 .

[0102] See also Figure 8 , Figure 8 The following is a schematic diagram of a structure in which a display module blank 30 and a functional layer 15 are stacked in some embodiments of the present application. The functional layer 15 is stacked on the display surface of the display module blank 30, but this does not represent a special limitation on the present application, that is, in some other embodiments, the functional layer 15 can also be stacked on the non-display surface of the display module blank 30, and specifically, which side of the display module blank 30 the functional layer 15 is stacked on can be selected according to the type and function of the functional layer 15.

[0103] Please continue reading Figure 8 The surface of the functional layer 15 facing away from the display module blank 30 is laminated with a glue material 16, and the transparent cover plate is bonded to the functional layer 15 through the glue material 16. Fig. 9 , Fig. 9 Schematic diagram of the structure of the adhesive material 16 provided in some embodiments of the present application. The adhesive material 16 is a double-sided adhesive structure. Specifically, the adhesive material 16 may include an adhesive layer 161 and a first release film 162 and a second release film 163 located on both sides of the adhesive layer 161. The first release film 162 is laminated on the surface of the adhesive layer 161 facing the light-transmitting cover plate 11, and the second release film 163 is laminated on the surface of the adhesive layer 161 facing the display panel 12. Before laminating the adhesive material 16 on the surface of the functional layer 15, the second release film 163 on the adhesive layer 161 needs to be torn off to bond the adhesive layer 161 to the surface of the functional layer 15. The bonding force between the first release film 162 and the adhesive layer 161 is greater than the bonding force between the second release film 163 and the adhesive layer 161 , so as to avoid the adhesive layer 161 being torn off from the first release film 162 simultaneously when the second release film 163 is torn off from the adhesive layer 161 .

[0104] See also Fig.10 , Fig.10 for Figure 8 After the adhesive layer 161 is bonded to the surface of the functional layer 15, the edges of the display module 114, the functional layer 15 and the adhesive layer 16 will be unevenly stacked, so that the flexible display screen 10 will have a large assembly error after being installed in the housing 20.

[0105] In order to solve the above problem and ensure the flushness of the edges of the display module 31, the functional layer 15 and the adhesive material 16, after the functional layer 15 and the adhesive material layer 161 are stacked on the display module blank 30, the edges of the light-transmitting adhesive layer, the functional layer 15 and the display module blank 30 are cut by laser. Of course, other processing methods can also be used for cutting, which are not specifically limited here. In this way, after cutting, the edges of the functional layer 15, the adhesive material 16 and the display module blank 30 are more flush, avoiding assembly errors caused by uneven edges.

[0106] However, after the edges of the display module blank 30, the functional layer 15 and the adhesive material 16 are integrally cut by laser, the adhesive material 16 will melt under the high temperature of the laser. Melting refers to the process in which the kinetic energy of the thermal motion of the molecules increases when the temperature rises, resulting in the destruction of the crystallization and the material changes from the crystal phase to the liquid phase. In other words, the adhesive material 16 will change from the original solid state to the liquid state, and part of the liquid adhesive material 16 will flow to the display module 31 and the functional layer 15 at the bottom thereof. In this way, under the action of the molten adhesive layer 161, the bonding force between the adhesive material 16, the functional layer 15 and the display panel 12 is further improved. After the cutting is completed, the first release film 162 is torn off from the surface of the adhesive layer 161 to bond the light-transmitting cover plate 11. At this time, under the bonding of the molten adhesive layer 161, the first release film 162 is very easy to peel off the adhesive layer 161, the functional layer 15 and the display panel 12 together during the tearing process, causing damage to the display screen, reducing the yield rate and production capacity of the display screen.

[0107] The above problem is more prominent on the flexible display screen 10. Compared with the straight display screen, the first release film 162 of the flexible display screen 10 needs a greater peeling force to be torn off from the surface of the adhesive layer 161. As a result, after the laser cutting is completed, the first release film 162 will be more difficult to peel off from the surface of the adhesive layer 161, and it is more likely to peel off the functional layer 15 and the display module 31 together. The reason why the first release film 162 of the flexible display screen 10 is more likely to peel off the display module 114 is that during the production of the adhesive 16, a release agent is added between the first release film 162 and the adhesive layer 161, and between the second release film 163 and the adhesive layer 161. The release agent can reduce the adhesion between the first release film 162 and the adhesive layer 161 and the adhesion between the second release film 163 and the adhesive layer 161, so as to facilitate the first release film 162 to be peeled off from the adhesive layer 161 and the second release film 163 to be peeled off from the adhesive layer 161. However, the release agent contains a lot of additives, which will remain on the surface of the adhesive layer 161. Among them, the silicon beads in the additives will affect the performance of the flexible display screen 10. Specifically, after the processing of the flexible display screen 10 is completed, it is necessary to perform a folding test. The silicon beads remaining on the adhesive layer 161 can easily cause the flexible display screen 10 to break and the layers in the flexible display screen 10 to warp and separate, reducing the stability and reliability of the flexible display screen 10. Therefore, the adhesive 16 applied to the flexible display screen 10 only adds more release agent, and then the problem of the first release film 162 causing the flexible display screen 10 to peel off when the film is torn off is more prominent.

[0108] In order to solve the above problems, the present application provides a display screen processing method, which can prevent the lower display module 114 and the functional layer 15 from being peeled off together when the first release film 162 is torn off. Fig.11 , Fig.11 A schematic diagram of the processing process of a display screen processing method provided in some embodiments of the present application. It should be noted that: Fig.11 The film layers in the figure are drawn in perspective. The part surrounded by the dotted line is the bottom main body blank 30a, the part surrounded by the dotted line is the second adhesive layer 161, and the part surrounded by the solid line is the top first release film 162. Specifically, the processing method of the display screen includes the following steps:

[0109] Step S1 : removing a first portion of the display module blank 30 to form a first corner edge 311 a of the display module 31 .

[0110] Step S2, laminating the first release film 162 with the adhesive layer 161 on the light-emitting surface of the display module blank 30, and making the adhesive layer 161 between the display module blank 30 and the first release film 162, in the laminating direction of the adhesive layer 161 and the first release film 162, the second corner edge of the adhesive layer 161 is aligned with the first corner edge 311a; at least a part of the first release film 162 is located outside the first corner edge 311a;

[0111] Step S3, removing the display module blank 30, the adhesive layer 161 and the first release film 162 located outside the other at least partial edges of the display module 31; wherein the other at least partial edges of the display module 31 are the other at least partial edges of the main body 311 except the first corner edge 311a, and the first release film 162 located outside the first corner edge 311a forms a first handle 162a.

[0112] Specifically, the display module blank 30 is a semi-finished product for forming the display module 31. The display module blank 30 may be in the shape of a square plate, an elliptical plate, a circular plate, a special-shaped plate, etc. This embodiment is described by taking the display module blank 30 as a square plate as an example, but this does not represent a special limitation on the present application. Further, the display module blank 30 includes a second side 30f and a third side 30g that are arranged opposite to each other, and a first side 30e connected between the second side 30f and the third side 30g.

[0113] The display module 31 may include a main body 311. The main body 311 is the part of the display module 31 used to display images. The display module blank 30 includes a main body blank 30a used to form the main body 311. The first corner edge 311a of the main body 311 is formed by removing the first part of the main body blank 30a. The main body 311 may be in the shape of a square plate, an elliptical plate, a circular plate, a special-shaped plate, etc. This embodiment is described by taking the main body 311 as a square plate as an example, but this does not represent a special limitation on the present application. The first part may be the angle area of ​​the main body blank 30a. The angle area is the area between two adjacent sides of the main body blank 30a, that is, Fig.11 The angle area between the first side edge 30e and the second side edge 30f is the first angle area 30c. The size and shape of the first angle area 30c are determined according to the size and shape required by the first corner edge 311a. The first part is the part surrounded by the first dotted line L1 and the first corner edge 311a.

[0114] Please continue reading Fig.11, the first part can be directly cut in and removed from the edge of the main body blank 30a, and the removal path extends from the edge of the main body blank 30a to the inside of the main body blank 30a, and then retreats to the edge of the other side of the main body blank 30a to form the shape of the first corner edge 311a. The inside of the main body blank 30a here means that the area where the main body blank 30a itself is located is the inside of the main body blank 30a, that is, the area surrounded by the edges of the main body blank 30a is the inside of the main body blank 30a, and the area outside the edge of the main body blank 30a is the outside of the main body blank 30a. The inside of the main body blank 30a mentioned later is also defined in the same way, and will not be repeated in the following text. Specifically, the removal path can be to cut in and remove from the first point d1 of the second side 30f, and extend toward the inside of the main body blank 30a according to the shape of the first corner edge 311a. The end point of the removal path is located at the second point d2 of the first side 30e. The first part is removed through the above removal path to form the first corner edge 311a.

[0115] See also Fig.12 , Fig.12 The schematic diagram of the structure of the display module blank 30 provided in some embodiments of the present application when it passes through step S1. The removal path can be to cut in and remove from the first point d1 of the second side edge 30f, extend from the first point d1 to the inside of the main body blank 30a to the third point d3, and extend from the third point d3 to the fourth point d4 according to the shape of the first corner edge 311a, that is, the positions of the third point d3 and the fourth point d4 are determined by the required shape of the first corner edge 311a, and the first part is removed after the removal path extends to the fourth point d4 to form the first corner edge 311a.

[0116] See also Fig.13 , Fig.13 A schematic diagram of the structure of the display module blank 30 provided in some embodiments of the present application when it passes through the S1 step. When the position where the first corner edge 311a needs to be set is located at a position of the main body blank 30a that is relatively close to the center position of the main body blank 30a, the center position here refers to a position that is roughly equal to the distance from the periphery of the main body blank 30a. In this way, if the main body blank 30a is removed according to the removal path of the above embodiment, the problem of low processing efficiency will be caused by the excessively long removal path. Therefore, the first through hole 30h can be directly removed from the main body blank 30a outside the first corner edge 311a to form the first corner edge 311a. The first part is the area surrounded by the second dotted line L2 and the first corner edge 311a.

[0117] The above-mentioned first part is an example of the present application and does not represent a special limitation on the present application. That is to say, in some other embodiments, the first part may be other areas and positions on the main body blank 30a, and the first part may be determined according to the position and shape of the first corner edge 311a to be set.

[0118] Please return to Fig.11 ,in, Fig.11 The area with the cross-hatching line is the rubber layer 161. Please refer to Fig.14 and Fig.15 , Fig.14 A schematic diagram of a structure in which a main body blank 30a, a glue layer 161 and a first release film 162 are stacked in layers according to some embodiments of the present application; Fig.15 for Fig.14 The schematic diagram of the structure of the first release film 162 is observed from the Z3 direction and hidden, wherein Fig.15 The dotted line portion in the figure is the edge of the main body blank 30a. In step S2, the adhesive layer 161 covers the light-emitting surface of the display module blank 30. In some embodiments, the adhesive layer 161 can completely cover the surface of the main body 311. The light-emitting surface of the display module blank 30 refers to the surface used to form the display surface of the display module 31. Complete coverage means that the area of ​​the adhesive layer 161 is greater than or equal to the area of ​​the main body 311, and the orthographic projection of the main body 311 on the adhesive layer 161 is located within the adhesive layer 161, so as to facilitate the bonding of other film layers to the surface of the main body 311 more firmly. The first release film 162 can also completely cover the surface of the adhesive layer 161 to prevent the adhesive layer 161 from bonding contaminants during the manufacturing process. However, this does not represent a special limitation to the present application. In some other embodiments, the adhesive layer 161 may be disposed only on a portion of the light-emitting surface of the main body 311. For example, the adhesive layer 161 may be disposed on the light-emitting surface of the main body 311 in the form of adhesive strips arranged at intervals from each other, or in the form of adhesive strips in a ring array or a square array. Similarly, the first release film 162 may be in a split form corresponding to the adhesive layer 161, or in an integral form stacked on the adhesive layer 161. The split form here refers to a structure in which the first release film 162 is disposed in the same distribution form as the adhesive layer 161, and the number and shape of the first release film 162 are consistent with those of the adhesive layer 161. The integral form refers to the first release film 162 being composed of a whole piece of adhesive layer 161 that can cover all the adhesive strips.

[0119] In some embodiments, the area of ​​the first release film 162 is larger than the area of ​​the main body 311, and the orthographic projection of the main body 311 on the first release film 162 is located inside the first release film 162. However, this does not represent a special limitation on the present application, as long as the first release film 162 has a first portion located outside the first corner edge 311a.

[0120] The second corner edge of the adhesive layer 161 is aligned with the first corner edge 311a in the stacking direction of the adhesive layer 161 and the first release film 162. The alignment here means roughly aligned, that is, the orthographic projection of the second corner edge on the main body 311 can overlap with the first corner edge 311a, the orthographic projection of the second corner edge on the main body 311 can also be located inside the main body 311, and the orthographic projection of the second corner edge on the main body 311 can also be located outside the main body 311. Please refer to the Fig.15 The main body 311 includes a second edge 311c and a third edge 311d opposite to each other, and a first edge 311b and a fourth edge 311e connected between the second edge 311c and the third edge 311d. The first edge 311b, the third edge 311d, the fourth edge 311e and the second edge 311c form a rectangle, and the first corner edge 311a is connected between the first edge 311b and the second edge 311c. It is worth noting that this does not represent a special limitation on the present application. When the main body 311 is of other structures, the main body 311 may only include one, two or more of the first edge 311b, the third edge 311d, the fourth edge 311e and the second edge 311c. Based on this, the interior of the main body 311 refers to the area surrounded by the first edge 311b, the third edge 311d, the fourth edge 311e, the second edge 311c and the first corner edge 311a, and the exterior of the main body 311 refers to the area outside the area surrounded by the first edge 311b, the third edge 311d, the fourth edge 311e, the second edge 311c and the first corner edge 311a.

[0121] Please return to Fig.11 It should be noted that in step S3 Fig.11 In the figure, the overlapped edges of the first release film 162, the adhesive layer 161 and the main body 311 are indicated by solid lines, and the shaded area is the adhesive layer 161 under the first release film 162. Fig.16 , Fig.16The structure diagram of the main body 311 obtained after the display module blank 30 provided in some embodiments of the present application is processed through the processing method steps S1 to S3. In addition to the first edge 311b, the second edge 311c, the third edge 311d, the fourth edge 311e and the first corner edge 311a, the main body 311 also includes a third corner edge 311f, a fifth corner edge 311g and a sixth corner edge 311h. Specifically, the third corner edge 311f is connected between the first edge 311b and the third edge 311d, the fifth corner edge 311g is connected between the third edge 311d and the fourth edge 311e, and the sixth corner edge 311h is connected between the fourth edge 311e and the second edge 311c. The structure of the main body 311 is one of the embodiments of the present application and does not represent a special limitation of the present application. That is to say, the main body 311 can also be processed into other shapes, and the processing path of the display module blank 30 can be changed according to actual use.

[0122] See also Fig.17 , Fig.17 This is a schematic diagram of the structure of the part to be removed in step S3 of the processing method provided in some embodiments of the present application. It should be noted that: Fig.17 A perspective drawing method is adopted. The other at least partial sides of the main body 311 except the first corner edge 311a refer to the other partial sides of the main body 311 excluding the first corner edge 311a. Based on the above structure of the main body 311, the other at least partial sides of the main body 311 except the first corner edge 311a refer to the first edge 311b, the second edge 311c, the third edge 311d, the fourth edge 311e and the third corner edge 311f, the fifth corner edge 311g and the sixth corner edge 311h. The sides of the main body 311 are the sides used to enclose the area where the main body 311 is located. Excluding the other at least partial sides refers to the part where the orthographic projection of the first release film 162 and the adhesive layer 161 on the main body 311 overlaps with the main body 311. Based on the above structure of the main body 311, the other at least partial sides refer to Fig.17 The shaded part of the image.

[0123] The outside of the first corner edge 311a refers to the area of ​​the first release film 162 opposite to the first part removed in step S1, that is, the orthographic projection of the first release film 162 on the main body 311 is defined as the first area, the orthographic projection of the first release film 162 in the stacking direction of the first release film 162 and the main body 311 and located on the plane where the main body 311 is located is defined as the second area, the first part is the third area, and the outside of the first corner edge 311a is the overlapping part of the first area and the third area; the outside of at least part of the other edges refers to the part after the first area and the third area are subtracted from the second area. However, the definition of the outside of the first corner edge 311a is not the area on the first release film 162 opposite to the first part in an absolute sense, and the above is only an example, that is, the outside of the first corner edge 311a may include an area beyond the first part, which may be smaller than the first part, in order to form a first handle 162a extending to the outside of the main body 311 at the first corner edge 311a, and the first handle 162a can be clamped by a processing person or a robot.

[0124] For example, see Fig.18 , Fig.18 Schematic diagram of the structure of the part to be removed in step S3 of the processing method provided in some embodiments of the present application. In this embodiment, the first handle 162a is Fig.17 The first handle 162a is larger and easier to hold by hand. The shape and size of the first handle 162a are not limited to the above Fig.17 and Fig.18 The above two embodiments are not special limitations of the present application. As long as a first handle 162a extending outward from the main body 311 is formed at the first corner edge 311a, it is within the protection scope of the present application.

[0125] Therefore, through the processing of step S1 to step S3 of the processing method, the processing of the display module blank 30 is divided into two steps of removal. In the first step of the removal process, only one of the corner edges of the display module blank 30 used to form the main body 311, that is, the first corner edge 311a, is removed. In the second step of the removal process, the stacked display module blank 30, the adhesive layer 161 and the first release film 162 are removed together, and the first corner is avoided. Therefore, in the second step of the removal process, the melting problem caused by the removal process between the display module blank 30, the adhesive layer 161 and the first release film 162 layers will not appear at the first corner edge 311a. Furthermore, the problem of increased adhesion between the film layers caused by melting will not appear at the first corner edge 311a. When it is necessary to tear off the first release film 162 from the surface of the adhesive layer 161, the first release film 162 is torn off into the first corner edge 311a through the first handle 162a, that is, Fig.18In this way, by providing the first handle 162a of the first release film 162 at the first corner edge 311a, the first release film 162 can be peeled off from the adhesive layer 161 through the first handle 162a, and the peeling of the first release film 162 will not cause the film layers under the first release film 162 to be peeled off, thereby ensuring the yield rate in the display screen production process and improving the production capacity of the display screen production process.

[0126] In one embodiment, the first release film 162 can be torn off by the first handle 162a along the diagonal direction of the main body 311 toward the first corner edge 311a, that is, the first release film 162 can be torn off at a 45-degree angle upward, so that the adhesive force generated by tearing the film between the first release film 162 at the first corner edge 311a and the adhesive layer 161 can be more evenly dispersed, thereby further avoiding the peeling between the individual film layers caused by tearing the film.

[0127] See also Fig.19 , Fig.19 A schematic diagram of the processing process of a display screen processing method provided by some embodiments of the present application. In some embodiments, before the first release film layer 162 with the adhesive layer 161 is stacked on the light-emitting surface of the display module blank 30, the following steps are also included:

[0128] Step S101 , removing the second portion 30 b 1 of the display module blank 30 to form a third corner edge 311 f of the main body 311 of the display module 31 ;

[0129] The first release film 162 with the adhesive layer 161 is stacked on the light emitting surface of the display module blank 30, including:

[0130] Step S201, stacking the first release film 162 with the adhesive layer 161 on the light-emitting surface of the display module blank 30, in the stacking direction of the adhesive layer 161 and the first release film 162, the second corner edge of the adhesive layer 161 is aligned with the first corner edge 311a, and the fourth corner edge of the adhesive layer 161 is aligned with the third corner edge 311f; at least a portion of the first release film 162 is located outside the third corner edge 311f;

[0131] Removing the display module blank 30, the adhesive layer 161 and the first release film 162 located outside at least a portion of the edge of the display module 31 includes:

[0132] In step S301, the display module blank 30, the adhesive layer 161 and the first release film 162 outside the other sides of the display module 31 are removed. The other sides are the sides of the main body 311 except the first corner side 311a and the third corner side 311f. The first release film 162 outside the third corner side 311f forms a second handle 162b.

[0133] The second portion may be the angle region of the main body blank 30a, which is the region between two adjacent sides of the main body blank 30a. Fig.19 The angle area between the first side 30e and the third side 30g is the second angle area 30d. The size and shape of the second angle area 30d are determined according to the size and shape required by the third corner edge 311f. The second part is the part surrounded by the third dotted line L3 and the third corner edge 311f.

[0134] Please continue reading Fig.19 The second part can be directly cut and removed from the edge of the main body blank 30a, and the removal path extends from the edge of the main body blank 30a to the inside of the main body blank 30a, and then retreats to the edge of the other side of the main body blank 30a to form the shape of the third corner edge 311f.

[0135] Specifically, the removal path may be to cut in and remove from the fifth point d5 of the third side 30g, and extend to the inside of the main body blank 30a according to the shape of the third corner edge 311f, and the end point of the removal path is located at the sixth point d6 of the first side 30e, and the second part is removed through the above removal path to form the third corner edge 311f. The second part may also be removed through other paths, and specifically, reference may be made to the removal path of the first corner edge 311a in the foregoing text. The above removal path is not a special limitation of the present application, that is, in some other embodiments, the second part may be other areas and positions on the main body blank 30a, and the second part may be determined according to the position and shape to be set for the third corner edge 311f.

[0136] Please continue reading Fig.19 In the stacking direction of the adhesive layer 161 and the first release film 162, the fourth corner edge of the adhesive layer 161 is aligned with the third corner edge 311f. The alignment here means roughly aligned, that is, the orthographic projection of the fourth corner edge on the main body 311 may overlap with the third corner edge 311f, the orthographic projection of the fourth corner edge on the main body 311 may be located inside the main body 311, and the orthographic projection of the fourth corner edge on the main body 311 may be located outside the main body 311.

[0137] Please continue reading Fig.19, the other at least partial sides of the main body 311 except the third corner side 311f refer to the other partial sides of the main body 311 excluding the third corner side 311f. Based on the structure of the main body 311, the other at least partial sides of the main body 311 except the first corner side 311a refer to the first edge 311b, the second edge 311c, the third edge 311d, the fourth edge 311e, the third corner side 311f, the fifth corner side 311g and the sixth corner side 311h. The sides of the main body 311 are used to enclose the area where the main body 311 is located. Excluding the other at least partial sides refers to the part where the orthographic projection of the first release film 162 and the adhesive layer 161 on the main body 311 does not overlap with the main body 311.

[0138] In some other embodiments, at least some of the sides of the main body 311 except the third corner side 311f may also refer to other parts of the sides of the main body 311 excluding the first corner side 311a and the third corner side 311f.

[0139] Therefore, through the processing from step S101 to step S301 of the processing method, by setting the first handle 162a and the second handle 162b of the first release film 162 at the first corner edge 311a and the third corner edge 311f, it is convenient to peel the first release film 162 from the adhesive layer 161 through the first handle 162a or the second handle 162b, and the peeling of the first release film 162 will not cause the film layers under the first release film 162 to be peeled off, thereby ensuring the yield rate in the display screen production process and improving the production capacity of the display screen production and processing.

[0140] See also Fig. 20 , Fig. 20 A schematic diagram of a processing method for display screens provided in some embodiments of the present application. In some embodiments, after removing the display module blank 30, the adhesive layer 161 and the first release film 162 located outside at least part of the other edges, the processing method further includes:

[0141] Step S401, removing the first release film 162 by means of the first handle 162a or the second handle 162b;

[0142] In step S501 , a transparent cover plate 11 is disposed on the surface of the adhesive layer 161 facing away from the main body 311 .

[0143] See also Fig.21 , Fig.21 For passing Fig. 20The first release film 162 is torn off by the first handle 162a or the second handle 162b to expose the adhesive layer 161. The transparent cover plate 11 is bonded to the main body 311, that is, the display surface of the display module 31, through the adhesive layer 161. The transparent cover plate 11 is used to protect the main body 311 from water, dust and scratches.

[0144] In the above-mentioned embodiments, the first corner edge 311a is connected between the first edge 311b and the second edge 311c, and the third corner edge 311f is connected between the first edge 311b and the third edge 311d. In some other embodiments, the corner edge may also be the fifth corner edge 311g between the third edge 311d and the fourth edge 311e, or the sixth corner edge 311h between the fourth edge 311e and the second edge 311c. When the main body 311 is of other shapes, it may also be a corner edge set between two other adjacent edges. In other words, the positions of the first corner edge 311a and the third corner edge 311f in the present application are not limited to the above two types. Setting the corner edge at any position of the main body 311 is within the protection scope of the present application.

[0145] In some embodiments, the first corner edge 311a can be a right angle edge or a circular arc edge. The above embodiments are described by taking the first corner edge 311a and the third corner edge 311f as circular arc edges. The circular arc edges can more smoothly connect the adjacent first edge 311b and the second edge 311c. Moreover, when the first release film 162 is torn off from the adhesive layer 161, the circular arc edges will not form sharp corners, thus avoiding stress concentration at the sharp corners when the first release film 162 is torn off, increasing the bonding strength at the sharp corners, and thus avoiding the risk of increasing the peeling of the film layers under the first release film 162. This ensures the yield rate in the display production process and improves the production capacity of the display production process.

[0146] In some embodiments, see Fig. 22 , Fig. 22 A schematic diagram of a processing method for display screens provided in some embodiments of the present application. The processing method further includes:

[0147] Step S601 (in this embodiment, step S601 is merged into step S101, so S601 is not shown), the display module blank 30 also includes a lead portion blank 30b, and a portion of the lead portion blank 30b is removed to form a lead portion 312; wherein the lead portion 312 is located on a side of the first edge 311b away from the fourth edge 311e and connected to the first edge 311b.

[0148] Please continue reading Fig. 22The above step S601 can be arranged in S101, that is, removing the first part of the display module blank 30 to form the first corner edge 311a of the display module 31 also includes removing part of the lead blank 30b of the display module blank 30 to form the lead part 312. The removal of the main body blank 30a and the lead blank 30b of the display module blank 30 can be processed in the same process, or the removal of the first part can be the first process, and the removal of the lead blank 30b can be the second process. The removal of the first part and the removal of the lead blank 30b can be divided into two processes, which also belongs to the protection scope of this embodiment.

[0149] See also Fig.23 , Fig.23 Schematic diagram of the processing process of the display screen processing method provided for some other embodiments of the present application. The difference between this embodiment and the above-mentioned embodiment is that step S601 is arranged after step S501, that is, after removing the display module blank 30, the adhesive layer 161 and the first release film 162 located outside at least part of the other edges, the lead portion blank 30b can be removed to form the lead portion 312 of the display module 31.

[0150] The above two embodiments are merely examples of step S601 and do not represent special limitations on the present application. In other words, step S601 can be set after step S101, after step S201, after step S301, or after step S401. The above processing sequences are all within the protection scope of the present application. The following description is based on the example of step S601 being set in step S101.

[0151] Specifically, the lead portion blank 30b is a blank used to form the lead portion 312 on the display module blank 30. The lead portion blank 30b can be a square plate, an elliptical plate, a circular plate, an irregular plate, etc. This embodiment is described using the lead portion blank 30b as a square plate as an example, but this does not represent a special limitation on the present application.

[0152] The display screen includes a main body 311 and a lead part 312 connected to the first edge 311b. The main body 311 is the display area of ​​the display screen, and the lead part 312 is also called a binding area / terminal area (bonding). The main body 311 is provided with a driving circuit and a pixel circuit for display, touch, etc., and the lead part 312 is provided with a gold finger (i.e., a pin on a circuit board) and a signal transmission pin. The metal lead of the signal transmission pin is connected to the driving circuit and the pixel circuit of the main body 311. The gold finger is connected to the signal transmission pin through the circuit board by point-to-point crimping to realize the transmission of display signals.

[0153] The lead portion 312 may be a flexible circuit board, which can make the display screen lighter, thinner, and smaller. The flexible circuit board can be bent and arranged in any direction according to the spatial arrangement in the electronic device 100, further improving the rationality and efficiency of the layout in the electronic device 100. The flexible circuit board can be directly bound to the display screen to realize the control of the display screen by the electronic device 100. Of course, this is not a special limitation of the present application, and other circuit board forms can also be used.

[0154] See also Fig.24 , Fig.24 for Fig. 22 and Fig.23 Schematic diagram of the structure of the lead blank 30b in FIG. The lead blank 30b includes a fifth side 30b2 and a seventh side 30b4 that are opposite to each other, and a sixth side 30b3 and an eighth side 30b5 that are connected between the fifth side 30b2 and the seventh side 30b4. The above features are described based on the example that the lead blank 30b is a square plate. When the lead blank 30b is in other shapes, the lead blank 30b can include one, two, three or more of the fifth side 30b2, the sixth side 30b3, the seventh side 30b4 and the eighth side 30b5.

[0155] See also Fig.25 , Fig.25 for Fig. 22 and Fig.23 Schematic diagram of the structure of the lead portion 312 formed by removing part of the lead portion blank 30b. Specifically, the lead portion 312 includes a fifth edge 3121 and a seventh edge 3123 relative to each other, and a sixth edge 3122 and an eighth edge 3124 connected between the fifth edge 3121 and the seventh edge 3123, wherein the fifth edge 3121 is formed by removing the fifth side 30b2 of the lead portion blank 30b, the sixth edge 3122 is formed by removing the sixth side 30b3 of the lead portion blank 30b, the seventh edge 3123 is formed by removing the seventh side 30b4 of the lead portion blank 30b, and the eighth edge 3124 is formed by removing the eighth side 30b5 of the lead portion blank 30b.

[0156] This embodiment is illustrated by taking the lead portion 312 as a square plate as an example, which does not represent a special limitation on the present application. That is to say, in some other embodiments, the lead portion 312 may also have other structures, such as a circular plate, an elliptical plate, an irregular plate, etc.

[0157] The portion of the lead blank 30b is the portion of the lead blank 30b to be removed to form the lead portion 312, that is, Fig. 22In order to more clearly explain the removal path of the lead portion blank 30b, please refer to Fig.26 , Fig.26 for Fig. 22 and Fig.23 Schematic diagram of the structure of the removal path of the lead blank 30b in the lead blank 30b. When removing the lead blank 30b, the lead blank 30b can be removed together with the first corner edge 311a. Fig.26 The lead portion 312 is processed along the path from the second point d2 to the ninth point d9, from the ninth point d9 to the tenth point d10, and from the tenth point d10 to the sixth point d6.

[0158] The lead blank 30b may also be removed along other paths, for example, Fig.26 Taking the left half of the lead portion blank 30b in the figure as an example, the lead portion blank 30b can be cut into half of the lead portion blank 30b from the seventh point d7 to the second point d2, from the second point d2 to the ninth point d9, and from the ninth point d9 to the eighth point d8, and the other half is removed according to a symmetrical removal path, which will not be repeated here.

[0159] The two embodiments of the removal path of the lead portion blank 30b mentioned above are merely examples of the present application, that is, the lead portion blank 30b may also be removed according to other removal paths, and the specific removal path may be processed according to the shape structure of the lead portion 312 to be finally obtained.

[0160] The lead portion 312 is provided with a gold finger (i.e., a pin on a circuit board) and a signal transmission pin, and the metal lead of the signal transmission pin is connected to the driving circuit and the pixel circuit of the main body 311. The gold finger is connected to the signal transmission pin through point-to-point crimping of the circuit board to realize the transmission of display signals, further improving the control efficiency of the display screen, and can be processed according to different electronic devices 100 to match the lead portion 312, thereby improving the rationality and efficiency of the internal space layout of the electronic device 100.

[0161] Please continue reading Fig.26 In some embodiments, the lead portion 312 is trapezoidal, and the trapezoid includes opposite long sides and short sides, and the long side is connected to the first edge 311b. The lead portion 312 of the trapezoidal structure can not only ensure the connection area between the lead portion 312 and the main body 311, but also facilitate the display screen to bend the lead portion 312 toward the inside of the electronic device 100 during the installation process, so as to improve the rationality and efficiency of the internal space layout of the electronic device 100.

[0162] In some embodiments, removing the display module blank 30, the adhesive layer 161, and the first release film 162 outside the other portions includes:

[0163] The display module blank 30 , the adhesive layer 161 and the first release film 162 outside the other parts are removed by laser processing.

[0164] The laser process has higher cutting quality, smaller cutting gap, narrower heat-affected zone, faster cutting speed, higher efficiency and lower cutting cost.

[0165] See also Fig. 27 , Fig. 27 Schematic diagram of the structure of the adhesive material 16 provided in some embodiments of the present application. In some embodiments, before the first release film 162 with the adhesive layer 161 is laminated on the light-emitting surface of the display module blank 30, the second release film 163 is removed; wherein the second release film 163 is laminated on the surface of the adhesive layer 161 that is away from the first release film 162. The adhesive material 16 is in the form of a double-sided adhesive. Before the adhesive layer 161 is disposed on the main body 311, the adhesive layer 161 is protected by the second release film 163 to prevent contaminants from adhering to the adhesive layer 161, thereby further improving the display quality of the display screen.

[0166] See also Fig.28 , Fig.28 A schematic diagram of the structure of a semi-finished display screen provided for some embodiments of the present application. The present application also provides a semi-finished display screen, the semi-finished display screen includes a display module 31, a glue layer 161 and a first release film 162, the display module 31 includes a main body 311, and the main body 311 has a first corner edge 311a. The glue layer 161 is stacked on the display surface of the main body 311, and the glue layer 161 has a second corner edge. In the stacking direction of the glue layer 161 and the first release film 162, the second corner edge is aligned with the first corner edge 311a. The first release film 162 is stacked on the surface of the glue layer 161 that is away from the main body 311, and the first release film 162 includes a third part, the third part is located outside the first corner edge 311a, and the third part forms a first handle 162a.

[0167] In this way, by setting the first handle 162a of the first release film 162 at the first corner edge 311a, the first release film 162 can be easily peeled off from the adhesive layer 161 through the first handle 162a, and the peeling of the first release film 162 will not cause the film layers under the first release film 162 to be peeled off, thereby ensuring the yield rate in the display screen production process and improving the production capacity of the display screen production and processing.

[0168] Please continue reading Fig.28The main body 311 also has a third corner edge 311f, and the adhesive layer 161 also has a fourth corner edge. In the stacking direction of the adhesive layer 161 and the first release film 162, the third corner edge 311f is aligned with the fourth corner edge. The first release film 162 also includes a fourth portion, which is located outside the third corner edge 311f and forms a second handle 162b.

[0169] In this way, by setting the first handle 162a and the second handle 162b of the first release film 162 at the first corner edge 311a and the third corner edge 311f, it is convenient to peel the first release film 162 from the adhesive layer 161 through the first handle 162a or the second handle 162b, and the peeling of the first release film 162 will not cause the film layers under the first release film 162 to be peeled off, thereby ensuring the yield rate in the display screen production process and improving the production capacity of the display screen production and processing.

[0170] Please continue reading Fig.28 In some embodiments, the main body 311 includes a second edge 311c and a third edge 311d opposite to each other, and a first edge 311b located between the second edge 311c and the third edge 311d, a first corner edge 311a connected between the first edge 311b and the second edge 311c, and a second corner edge connected between the first edge 311b and the third edge 311d. The display module 31 also includes a lead portion 312, which is disposed on the first edge 311b of the main body 311.

[0171] The lead portion 312 is provided with a gold finger (i.e., a pin on a circuit board) and a signal transmission pin, and the metal lead of the signal transmission pin is connected to the driving circuit and the pixel circuit of the main body 311. The gold finger is connected to the signal transmission pin through point-to-point crimping of the circuit board to realize the transmission of display signals, further improving the control efficiency of the display screen, and can be processed according to different electronic devices 100 to match the lead portion 312, thereby improving the rationality and efficiency of the internal space layout of the electronic device 100.

[0172] The present application also provides a tray for placing the semi-finished product of the above-mentioned display screen. A limiting portion is provided on the tray for limiting the position. The limiting portion can be made of silicone material, foam material, etc. to prevent the risk of glue pulling and foreign matter in the glue layer caused by the collision between the first handle 162a and the second handle 162b.

[0173] In the description of this specification, specific features, structures, materials or characteristics may be combined in an appropriate manner in any one or more embodiments or examples.

[0174] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. A method for processing a display screen, characterized in that: include: removing a first portion of the display module blank to form a first corner edge of the display module; Laminating a first release film with an adhesive layer on the light-emitting surface of the display module blank, and making the adhesive layer between the display module blank and the first release film, and aligning the second corner edge of the adhesive layer with the first corner edge in the laminating direction of the adhesive layer and the first release film; At least a portion of the first release film is located outside the first corner edge; The display module blank, the adhesive layer and the first release film located outside at least part of the other edges of the display module are removed; wherein, the at least part of the other edges of the display module are at least part of the other edges of the display module except the first corner edge, and the first release film located outside the first corner edge forms a first handle.

2. The processing method according to claim 1, characterized in that: Before laminating the first release film with the adhesive layer on the light-emitting surface of the display module blank, the processing method further includes: removing a second portion of the display module blank to form a third corner edge of the display module; The method of laminating a first release film with a glue layer on the light-emitting surface of the display module blank comprises: A first release film with an adhesive layer is stacked on the light-emitting surface of the display module blank, in the stacking direction of the adhesive layer and the first release film, the second corner edge of the adhesive layer is aligned with the first corner edge, and the fourth corner edge of the adhesive layer is aligned with the third corner edge; at least a portion of the first release film is located outside the third corner edge; The removing of the display module blank, the adhesive layer and the first release film located outside at least part of the other edges of the display module comprises: The display module blank, the adhesive layer and the first release film outside other edges of the display module are removed, and the other edges are edges of the display module except the first corner edge and the third corner edge, and the first release film outside the third corner edge forms a second handle.

3. The processing method according to claim 2, characterized in that: After removing the display module blank, the adhesive layer and the first release film located outside at least part of the other edges of the display module, the processing method further includes: removing the first release film by means of the first handle or the second handle; A light-transmitting cover plate is arranged on the surface of the adhesive layer facing away from the display module.

4. The processing method according to claim 2 or 3, characterized in that: The display module includes a main body, the main body includes a first edge and a second edge, and the first corner edge is connected between the first edge and the second edge.

5. The processing method according to claim 4, characterized in that: The main body also includes a third edge, the third edge is opposite to the second edge, and the third corner edge is connected between the first edge and the third edge.

6. The processing method according to any one of claims 1 to 3, characterized in that: The first corner edge is an arc edge.

7. The processing method according to claim 4, characterized in that: Also includes: The main body portion further includes a fourth edge opposite to the first edge, and the display module further includes a lead portion, which is located on a side of the first edge away from the fourth edge and connected to the first edge.

8. The processing method according to claim 7, characterized in that: The lead portion is in a trapezoidal shape, the trapezoidal shape includes opposite long sides and short sides, and the long sides are connected to the first edge.

9. The processing method according to any one of claims 1 to 3, characterized in that: Removing the display module blank, the adhesive layer, and the first release film outside other portions of the display module includes: The display module blank, the adhesive layer and the first release film outside the other parts of the display module are removed by laser technology.

10. The processing method according to any one of claims 1 to 3, characterized in that: Before laminating the first release film with the adhesive layer on the light-emitting surface of the display module blank, the second release film is removed; wherein the second release film is laminating on the surface of the adhesive layer away from the first release film.

11. A semi-finished product of a display screen, characterized in that: include: A display module, the display module comprising a main body, the main body having a first corner edge; An adhesive layer, wherein the adhesive layers are stacked on the display surface of the main body, the adhesive layer having a second corner edge, and in a stacking direction of the adhesive layer and the first release film, the second corner edge is aligned with the first corner edge; A first release film is stacked on a surface of the adhesive layer away from the main body, and the first release film includes a third portion, the third portion is located outside the first corner edge, and the third portion forms a first handle.

12. The semi-finished product of the display screen according to claim 11, characterized in that: The main body also has a third corner edge; The adhesive layer further has a fourth corner edge, and in the stacking direction of the adhesive layer and the first release film, the third corner edge is aligned with the fourth corner edge; The first release film further includes a fourth portion, the fourth portion is located outside the third corner edge, and the fourth portion forms a second handle.

13. The semi-finished product of the display screen according to claim 11 or 12, characterized in that: The main body portion includes a second edge and a third edge opposite to each other, and a first edge located between the second edge and the third edge, the first corner edge is connected between the first edge and the second edge, and the second corner edge is connected between the first edge and the third edge; The display module further includes a lead portion, and the lead portion is arranged at a first edge of the main body portion.

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