Bending jigs and bending methods

Abstract

The present application relates to the field of light-emitting displays, and more specifically to a bending jig and a bending method, the jig comprising a base, a first stopper disposed on the base, and a second stopper disposed on the base or the first stopper. The second stopper has a preset curved surface whose curvature matches the target bending curvature of the display module to be bent. When bending the structure to be bent of the display module to be bent, the display module to be bent is first fixed by the first stopper, and then the structure to be bent is pressed against the second stopper, gradually achieving bending, so that the bending degree of the structure to be bent matches the curved surface of the second stopper, that is, the same as the target bending curvature, and no deformed bending occurs. Furthermore, because the second stopper can control the starting bending position of the structure to be bent, the starting bending position can be strictly controlled by changing the position of the first stopper or the second stopper for modules of different production batches, thereby avoiding excessive or insufficient bending protrusion, thereby greatly improving product yield.

Description

Technical Field

[0001] The present invention relates to a bending jig and a bending method, belonging to the technical field of luminous display. Background Art

[0002] With the increasing demand for narrow bezels, technologies that bend flexible circuit boards (FPCs) or chip-on-film (COF) to reduce the display area occupied by the screen are becoming increasingly popular. However, existing technologies fail to control the amount of protrusion and the specific degree of bending in each region of the bending area when bending the aforementioned areas. This can lead to problems such as excessive or insufficient protrusion, as well as deformed bends, significantly reducing the product yield of display modules. Summary of the Invention

[0003] The present invention provides a bending jig to solve the problem in the prior art that a panel is prone to bending abnormalities such as deformed bending and excessive bending, resulting in a low product yield.

[0004] In a first aspect, the present invention provides a bending jig for bending a structure to be bent of a display module, the bending jig comprising:

[0005] base;

[0006] a first stopper provided on the base, the first stopper being used to fix the display module to be bent;

[0007] A second stopper is provided on the base or the first stopper, wherein the second stopper has a preset arc surface, and the curvature of the preset arc surface matches the target bending curvature of the structure to be bent.

[0008] Optionally, the display module to be bent further comprises a module body connected to the structure to be bent, and the width of the structure to be bent is smaller than the width of the module body;

[0009] The first stopper is used to contact a preset portion of the module body to fix the module body, and the preset portion is located on at least one side of a connection portion between the structure to be bent and the module body.

[0010] Optionally, the first stopper includes two first sub-stoppers;

[0011] The two first sub-stops are respectively located on both sides of the base;

[0012] The distance between the two first sub-blocks is smaller than the width of the module body and is greater than or equal to the width of the structure to be bent.

[0013] Optionally, the first stopper includes two second sub-stoppers, and the two second sub-stoppers are respectively located on both sides of the base;

[0014] A telescopic structure is provided on the first side of the second sub-stop, and the first side of the second sub-stop is a side close to another second sub-stop;

[0015] The telescopic structure is used to contact the module body or the structure to be bent when in an extended state, so as to fix the display module to be bent.

[0016] Optionally, it further includes a first sliding assembly;

[0017] The first stopper is connected to the base via the first sliding assembly;

[0018] Preferably, the first sliding assembly includes a plurality of first fixed positions, and the first stopper is detachably connected to the first fixed positions.

[0019] Optionally, further comprising a second sliding assembly;

[0020] The second stopper is connected to the base via the second sliding assembly;

[0021] Preferably, the second sliding assembly includes a plurality of second fixed positions, and the second stop block is detachably connected to the second fixed positions.

[0022] Optionally, the first stopper includes a first part and a second part respectively arranged on both sides of the base, and the first part of the first stopper is provided with a limiting structure;

[0023] The first end of the second stopper is rotatably fixed on the second part, and the second end of the second stopper is detachably connected to the limiting structure.

[0024] Optionally, a suction port is provided in the second stopper;

[0025] The second stopper is used to absorb the structure to be bent through the absorption port during the bending process of the structure to be bent.

[0026] Optionally, it further comprises a glue coating structure with one end rotatably fixed on the base;

[0027] The glue coating structure is used to rotate to the bending zone after the structure to be bent is bent to form a bending zone, and coat the internal glue on a preset surface of the bending zone, wherein the preset surface is a side of the bending zone away from the second stopper;

[0028] Preferably, the glue-coated structure has a concave arc surface, and the curvature of the concave arc surface matches the target bending curvature of the structure to be bent.

[0029] In a second aspect, the present application further provides a bending method using the bending jig as described above, comprising:

[0030] Fixing the display module to be bent by using the first stopper of the bending jig;

[0031] The to-be-bent structure of the to-be-bent display module is bent so that the to-be-bent structure gradually fits into the preset arc surface of the second stopper, and the curvature of the preset arc surface matches the target bending curvature of the to-be-bent structure.

[0032] The bending jig provided in the present application includes a base, a first stopper provided on the base, and a second stopper provided on the base or the first stopper. The second stopper has a preset curved surface whose curvature matches the target bending curvature of the display module to be bent. When bending the structure to be bent of the display module to be bent, the display module to be bent is first fixed by the first stopper, and then the structure to be bent is pressed against the second stopper to gradually achieve bending, so that the bending degree of the structure to be bent matches the curved surface of the second stopper, that is, the same as the target bending curvature, and no deformed bending occurs. Moreover, because the second stopper can control the starting bending position of the structure to be bent, the starting bending position can be strictly controlled by changing the position of the first stopper or the second stopper for different batches of modules, thereby avoiding excessive or insufficient bending protrusion, thereby greatly improving the product yield. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The accompanying drawings are incorporated into and constitute a part of the specification, illustrate embodiments consistent with the present invention, and together with the description, serve to explain the principles of the present invention. In addition, these drawings and the description are not intended to limit the scope of the present invention in any way, but rather to illustrate the concept of the present invention for those skilled in the art by reference to specific embodiments.

[0034] Figure 1 Schematic diagram of various bending conditions in the prior art;

[0035] Figure 2 A schematic structural diagram of a display panel provided in an embodiment of the present application;

[0036] Figure 3 Schematic diagram of the structure of a display module to be bent in the prior art;

[0037] Figure 4 A schematic diagram of the structure of the display panel of the display module to be bent provided in an embodiment of the present application before and after bending;

[0038] Figure 5 is a structural schematic diagram of a bending jig provided in another embodiment of the present application;

[0039] Figure 6 This is a schematic structural diagram of a bending jig with a telescopic structure provided in an embodiment of the present application;

[0040] Figure 7 1 is a schematic structural diagram of a bending jig with a first sliding assembly provided in an embodiment of the present application;

[0041] Figure 8 1 is a schematic structural diagram of a bending jig with a second sliding assembly provided in an embodiment of the present application;

[0042] Figure 9 1 is a structural diagram of a bending jig provided in yet another embodiment of the present application;

[0043] Figure 10 It is a structural schematic diagram of a bending jig with a glue coating structure provided in an embodiment of the present application.

[0044] Description of reference numerals:

[0045] 10-Bending fixture;

[0046] 11- base;

[0047] 12-First stop

[0048] 121-first sub-block;

[0049] 122-second sub-block;

[0050] 123- telescopic structure;

[0051] 13- second stopper;

[0052] 141-first sliding assembly;

[0053] 142-second sliding assembly;

[0054] 15- glue coating structure;

[0055] 20-display module to be bent;

[0056] 21-module body;

[0057] 22-structure to be bent;

[0058] 23-Bending area. DETAILED DESCRIPTION

[0059] To make the purpose, technical solutions and advantages of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention. The following embodiments and features in the embodiments can be combined with each other unless there is a conflict.

[0060] Application Overview:

[0061] Narrow bezels are becoming a trend in the industry for devices like mobile phones and smart wearables. One way to achieve this is to bend a flexible circuit board underneath the screen. In some scenarios, the chip-on-film must also be bent.

[0062] These bendable display modules typically consist of a connected module body and a structure to be bent. The structure to be bent includes the aforementioned flexible printed circuit board and chip-on-film. Only the structure to be bent requires bending, not the module body. Bending the structure to be bent generates significant stresses in varying directions, which can easily damage the structure. Precise control of the bending process is also difficult, making it difficult to ensure the structure meets quality standards after bending.

[0063] like Figure 1 As shown, Figure 1 Part a is an ideal standard bend. It is difficult to accurately control the bending. Specifically, it is impossible to accurately grasp the bending degree of each part of the bending area of ​​the structure to be bent. It is easy to cause discomfort in the local bending angle, deformed bending, and direct damage to the structure to be bent. Figure 1 As shown in part b; and the inability to accurately control the bending protrusion (the distance between the bending zone and the module body after bending), that is, where to start bending the structure to be bent, thereby determining the length of the bending zone, resulting in the bending protrusion being too large or too small (the bending starting position is selected too far forward or too far back), and the product is unqualified, as shown in the following example. Figure 1 Therefore, in the prior art, bending is prone to abnormalities, and the product yield cannot be guaranteed. There is an urgent need for a bending jig or method that can improve the control of the bending process, reduce the risk of abnormal bending, and improve the product yield.

[0064] Example Fixture

[0065] Figure 2 This is a schematic diagram of the structure of the bending jig provided in an embodiment of the present application. Figure 3is a schematic structural diagram of a display module to be bent in the prior art. Figure 4 This is a schematic diagram of the structure of the display panel of the display module to be bent before and after bending provided in the embodiment of the present application, wherein Figure 4 Part a in the middle is a schematic diagram of the touch display module 20 to be bent before being bent. Figure 4 Part b is the schematic diagram after bending. Figure 2 、 Figure 3 and Figure 4 As shown, the bending jig 10 provided in the embodiment of the present application includes a base 11; a first stopper 12 provided on the base 11, and the first stopper 12 is used to fix the module body 21 of the display module 20 to be bent or the structure 22 to be bent.

[0066] In practical applications, the overall display module generally does not have a regular shape, such as a regular rectangle or a regular circle. This is especially true for display modules that need to be bent, such as the aforementioned bendable display module 20, which includes at least a module body 21 and a bendable structure 22. The module body 21 and the bendable structure 22 generally have different shapes, such as at least a difference in width and thickness. In some modules, the module body 21 or the bendable structure 22 may have specific irregular shapes. In this application, the first stopper 12 can secure the bendable display module 20 by locking or blocking certain specific areas of the bendable display module 20.

[0067] The shape of the first stopper 12 can be designed based on the shape of the display module 20 to be bent. For example, to secure the module body 21 or the structure 22 to be bent of the display module 20 to be bent, the first stopper 12 can be designed as a cubic block, thereby contacting the display module 20 to limit and secure it. Of course, the first stopper 12 can also be configured to match a specific shape of the display module 20 to be bent, thereby achieving fixation by interlocking therewith.

[0068] Specifically, the display module 20 to be bent can be placed on the base 11. At this point, the display module 20 to be bent is not yet fixed and can be moved on the base 11. Then, by moving the display module 20 to be bent on the base 11, the first stopper 12 contacts the module body 21 or the structure to be bent 22 to achieve positional fixation, or engages with certain specific areas on the display module 20 to achieve fixation.

[0069] The bending jig 10 provided in the present application further includes a second stopper 13 provided on the base 11 or the first stopper 12 . The second stopper 13 has a preset arc surface, and the curvature of the preset arc surface matches the target bending curvature of the structure 22 to be bent.

[0070] Specifically, the second stopper 13 can be provided on the base 11 or the first stopper 12, and is located on one side of the first stopper 12, wherein a surface of the second stopper 13 away from the first stopper 12 has an arc that matches the target bending arc of the structure to be bent 22, so that after the structure to be bent is bent close to the arc surface, the arc of the structure to be bent itself is the same as the target bending arc of the structure to be bent. Figure 4 The middle is the preset arc surface A. After the display module 20 to be bent is fixed by the first stopper 12, the module body 21 can be located on the side of the first stopper 12 away from the second stopper 13, and the structure to be bent 22 to be bent is located on the side of the preset arc surface A of the second stopper 13.

[0071] At this point, it is only necessary to gradually place the various parts of the structure to be bent 22 against the second stopper 13 to begin bending. Because during the bending process, each region of the structure to be bent 22 successively and closely contacts the preset arc surface A, the preset arc surface A provides support for the structure to be bent 22, thereby preventing the structure to be bent 22 from bending at an abnormal curvature. Therefore, after the structure to be bent 22 is bent, the resulting curvature is the same height as the preset arc surface A, and is also the same as the target curvature of the structure to be bent 22, thus avoiding abnormal bending angles or even deformed bending.

[0072] In addition, it should be noted that for products of the same production batch (with the same bending arc and bending protrusion), such as the display module 20 to be bent, the starting position of the bending (affecting the bending protrusion) is the same. In the bending jig provided in the present application, because the structure 22 to be bent is bent close to the preset arc surface A of the second stop block 22, the lowest position corresponding to the preset arc surface A corresponds to the starting bending position of the structure 22 to be bent. Therefore, in the present application, the position of the second stop block 13 or the relative position of the second stop block 13 and the first stop block 12 can be determined, so that after the display module 20 to be bent is fixed by the first stop block 12, the bending can be started in a specific area of ​​the structure 22 to be bent, thereby strictly controlling the bending protrusion of products from the same batch to avoid the bending protrusion being too large or too small.

[0073] The bending jig provided herein secures the display module 20 to be bent using a first stopper 12. The structure 22 to be bent is then bent against the preset curved surface A of the second stopper 13. This ensures that the bending degree of each region of the structure 22 during the bending process is identical to the preset curved surface A and the target bending radius, preventing any deformed bending. Furthermore, by determining the positions of the first and second stops 12, 13, the bending protrusion of the structure 22 to be bent can be strictly controlled, preventing excessive or insufficient protrusion. This significantly enhances bending controllability and improves product yield.

[0074] As mentioned above, in actual applications, the widths of the module body 21 and the structure to be bent 22 are generally different. Figure 3 As shown, the width of the module body 21 is generally greater than the width of the structure to be bent 22. Therefore, in some embodiments of the present application, the first stopper 12 can block the wider module body 21, thereby achieving the effect of fixing the display module 20 to be bent.

[0075] Specifically, the first stop block 12 can form an area that can be passed through, and the width of the area is equal to or greater than the width of the structure to be bent 22, but less than the width of the module body 21, so that the display module 20 to be bent can be moved, and the structure to be bent 22 can be passed through the above-mentioned area. When the module body 21 of the display module 20 to be bent reaches the area, it cannot pass through the area due to width limitation and is blocked, so that the module body 21 is blocked on one side of the first stop block 12 of the base 11 with the connection between the module body 21 and the structure to be bent 22 as the boundary, and the structure to be bent 22 is mainly located on the other side (because the first stop block 12 has thickness, so a part of the structure to be bent 22 is located in the area corresponding to the thickness of the first stop block 12).

[0076] It should be noted that the first stop block 12 can be a whole, which only contacts one side of the connection part between the structure to be bent 22 and the module body 21 to prevent the module body 21 from passing through, thereby achieving fixation; it can also include multiple parts, which contact multiple positions on one side of the connection part between the structure to be bent 22 and the module body 21 to achieve fixation; and it can also include multiple parts, which respectively contact multiple positions on both sides of the connection part between the structure to be bent 22 and the module body 21, so as to achieve better fixing effect.

[0077] Figure 5 This is a structural diagram of a bending jig provided by another embodiment of the present application. Figure 5 As shown, in the bending jig 10 provided in the embodiment of the present application, the first stop block 12 includes two first sub-stop blocks 121, and the two first sub-stop blocks 121 are respectively located on both sides of the base 11; the distance between the two first sub-stop blocks 121 is smaller than the width of the module body 21 and larger than the width of the structure to be bent.

[0078] Specifically, the two first sub-blocks 121 are respectively located on both sides of the base 11, as shown in FIG. Figure 5 The distance between the two first sub-blocks 121 (enabling the structure to be bent 22 to pass through) is greater than or equal to the width of the structure to be bent 22 and less than the width of the module body 21 .

[0079] In this manner, the display module 20 to be bent can be placed on the base 11, and the structure to be bent 22 can be positioned between the two first sub-stops 121. The display module 20 to be bent can then be continuously moved toward the first sub-stops 121, toward the second stop 13. When the edge of the module body 21 reaches the first sub-stop 121, i.e., when the connection between the module body 21 and the structure to be bent 22 reaches the first sub-stop 121, because the width of the module body 21 is greater than the width of the blank area between the two first sub-stops 121, the module body 21 cannot pass through the area between the two first sub-stops 121. Instead, it is blocked on the side of the two first sub-stops 121 away from the second stop 13, thereby achieving a fixed function. By providing two first sub-stops 121, when the first stop 12 blocks the module body 21, the two first sub-stops 121 are located at the two ends of the module body 21 that protrude relative to the structure to be bent 22 (the area that exceeds the width of the structure to be bent 22), greatly improving the fixed stability.

[0080] In addition to utilizing the shape of the display module 20 to be bent and the width difference between its parts, and realizing the fixing function by partially engaging the first sub-block 121 with the display module 20 to be bent, or blocking the module body 21, the embodiment of the present application also provides another implementation method, in which the function of fixing the display module 20 to be bent is realized by replacing the first sub-block 121 with a second sub-block 122. Specifically, a telescopic structure 123 is provided on the second sub-block 122, and the fixing function is realized by the telescopic structure 123. Figure 6 This is a structural diagram of a bending jig provided by another embodiment of the present application. Figure 6 As shown, in the bending jig 10 provided in the embodiment of the present application, a telescopic structure 123 can also be provided on the two second sub-blocks 122 of the first block 12. The telescopic structure 123 is used to contact the module body 21 or the structure to be bent 22 when in an extended state to fix the display module 20 to be bent.

[0081] Specifically, when the bendable display module 20 does not need to be fixed, including when the bendable display module 20 has not moved to the preset area (determined based on the bend amount control), the telescopic structure 123 can be controlled to be in a shortened state, allowing the bendable display module 20 to pass through the area between the two second sub-stops 122. When the bendable display module 20 needs to be fixed, the telescopic structure 123 is controlled to be in an extended state, so that the telescopic structure 123 contacts the bendable display module 20 and applies a pressure sufficient to fix the bendable display module 20 without damaging it, thereby fixing the bendable display module. By fixing the bendable display module with the telescopic structure 123, the module body 21 or the bendable structure 22 can be fixed at will, making it easier to control the bend protrusion amount.

[0082] It should be noted that, because the fixing function is achieved by the telescopic structure 123, there is no need for the first stop block 12 to block the module body 21 based on the width, so the spacing setting range between the two second sub-stop blocks 122 is relatively wide, which can be greater than the width of the structure to be bent 22 and smaller than the width of the module body 21, or greater than the width of the module body 21.

[0083] In addition, the telescopic structure can be relative to the area between the two second sub-blocks 122. For example, the telescopic structure 123 can have two forms itself, or it can have only one form. By moving or rotating, the distance between the two telescopic structures can be reduced, thereby narrowing the area allowed to pass between the two second sub-blocks 122.

[0084] Furthermore, because the starting bending position of the structure to be bent 22 after being fixed corresponds to the bottom end of the preset arc surface A of the second stopper 13, that is, the position in contact with the bottom end of the preset arc surface A is the starting bending position, the starting bending position of the structure to be bent 22 can be adjusted by changing the distance between the second stopper 13 and the first stopper 12, thereby controlling the bending protrusion of the structure to be bent 22, including fixing the second stopper 13 on the base 11 and slidably setting the first stopper 12 on the base 11; or fixing the first stopper 12 on the base 11 and slidably setting the second stopper 13 on the base 11, or even fixing the first stopper 12 on the base 11 and slidably setting the second stopper 13 on the base 11, and directly slidably setting the second stopper 13 on the first stopper 12, directly changing the distance between the two, etc.

[0085] Figure 7 This is a structural diagram of a bending jig provided in another embodiment of the present application. Figure 7 As shown, the first stopper 12 can be connected to the base 11 via a first sliding assembly 141, allowing the first stopper 12 to move relative to the base 11 on the first sliding assembly 141. Furthermore, the first stopper 12 can be removably fixed to multiple first fixed positions on the first sliding assembly 141. For example, a movement restriction or snap assembly can be provided on the first sliding assembly 141 so that the first stopper 12 can be fixed to a specific position after being positioned, remaining stationary relative to the first sliding assembly 141 and the base 11. Changing the distance between the first stopper 12 and the second stopper 13 facilitates control of the bending protrusion of the structure 22 to be bent.

[0086] Figure 8 This is a structural diagram of a bending jig provided in another embodiment of the present application. Figure 8As shown, the second stopper 13 can be connected to the base 11 through the second sliding component 142, so that the second stopper 13 can move relative to the base 11 on the second sliding component 142. Moreover, the second stopper 13 can be detachably fixed to multiple second sliding positions on the second sliding component 142. The principle is as follows Figure 7 The principles of the embodiments are similar and will not be described again here.

[0087] By setting up the sliding component and cooperating with other devices such as rulers, the starting position of the bending can be flexibly and accurately controlled, and the bending of the display module to be bent can be better controlled. Even different batches of display modules 20 to be bent can be bent by one bending jig 10, which greatly saves material resources.

[0088] It is understood that in the above embodiment, when the first stopper 12 is connected to the base 11 via the first sliding assembly 141, if the first stopper 12 is needed to secure the display module to be bent, the operator is required to slide and adjust the position of the first stopper 12 in advance according to the length of the display module 20 to be bent, so as to control the bending protrusion of the structure to be bent 22. In the above embodiment, when the second stopper 13 is connected to the base 11 via the second sliding assembly 142, the operator can slide and adjust the position of the second stopper 13 in advance, or adjust the position of the second stopper 13 after the first stopper 12 secures the structure to be bent 22, which provides more flexibility in adjustment time.

[0089] In addition, in some other embodiments of the present application, the second stopper 13 can also be provided on the first stopper 12. As mentioned above, the first stopper 12 may include two parts provided on both sides of the base 11, namely a first part and a second part. One end of the second stopper 13 can be rotatably fixed to the second part on one side of the first stopper 12, and the other end of the second stopper 13 can be detachably fixed to the first part of the first stopper 12 on the other side.

[0090] Specifically, a limiting structure can be provided on the first portion of the non-rotating fixed second stopper 13, including a limiting stopper or a limiting buckle, etc. The second stopper 13 is restricted on the limiting structure by rotating to the limiting structure, and is horizontally placed and perpendicular to the two first stops 12, as shown in FIG. Figure 9 As shown in part a of the figure. In this way, when the second stopper 13 is not limited, there is no obstruction above the two parts of the first stopper 12, as shown in the figure. Figure 9 As shown in part b in FIG. 1 , the display module 20 to be bent can be placed on the base 11 from above the base 11 , which is convenient for the operator to operate.

[0091] Furthermore, based on the above embodiment, the bending jig 10 provided in the present application may further include a suction port in the second stopper 13 to provide a suction force from the preset arc surface A toward the first stopper 12. Thus, during the bending process of the structure to be bent 22, the suction force is applied to the structure to be bent 22, making it easier for the structure to be bent 22 to fit more tightly with the preset arc surface A, and better controlling the bending of the structure to be bent 22.

[0092] In other embodiments of the present application, the bending jig 10 also includes a glue coating structure 15 rotatably fixed at one end to the base 11. The glue coating structure 15 is used to rotate to the bending area B after the structure 22 to be bent is bent to form the bending area B, and to apply the internal glue to a preset surface of the bending area B, wherein the preset surface is a side of the bending area B away from the second stop block 13.

[0093] Specifically, the adhesive coating structure 15 is positioned on one side edge of the base 11 near the second stopper 13. Thus, after the to-be-bent structure 22 is bent against the pre-set curved surface A of the second stopper 13 to form a curved bending zone B, the adhesive coating structure 22 can be rotated upward to apply the adhesive inside to the bending zone. It should be noted that the first surface of the bending zone 23 is the surface that is in close contact with the second stopper 13, and the second surface is the surface opposite the first surface, and the adhesive is applied to the second surface.

[0094] By providing a rotatable glue coating structure 15, the colloid can be quickly applied to the bending area B after it is formed, without affecting the bending of the structure to be bent 22. The colloid applied to the second surface of the bending area B can, on the one hand, dissipate static electricity generated in the bending area B and other parts through the glue, thereby improving the anti-static performance of the bending area B. On the other hand, the cured colloid can fix the shape of the bending area B, preventing deformation of the bending area B during the assembly process.

[0095] In other embodiments of the present application, in order to better achieve the coating of the colloid, a curved surface with the same target bending curvature as the display module to be bent can be set on the glue coating structure 15, so that the glue coating structure 15 is directly buckled on the bending area B after rotation. Because of the positional relationship between the glue coating structure 15 and the bending area B, the curved surface of the glue coating structure 15 can be set as a concave curved surface, as shown in the following example. Figure 10 In this way, on the one hand, it is convenient for the glue coating structure 15 to be buckled with the bending area B, and on the other hand, it is easy to store the glue before coating.

[0096] Method Example:

[0097] Based on the same inventive concept, the present application also provides a bending method, including using the bending jig provided in the above embodiment to bend the display module to be bent, specifically comprising:

[0098] S101, first fixing the display module to be bent by a first stopper of a bending jig;

[0099] S102 , bending the to-be-bent structure of the to-be-bent display module so that the to-be-bent structure gradually fits into the preset arc surface of the second stopper, wherein the curvature of the preset arc surface matches the target bending curvature of the to-be-bent structure.

[0100] Specifically, the structure to be bent can be bent by a preset pressing device or even by artificially providing force, so that the structure to be bent is continuously in close contact with the preset arc surface of the second stop block, thereby controlling the bending process through the preset arc surface of the second stop block, so that the bending curvature of each part of the bending part is equal to the preset bending arc, until the bending area of ​​the structure to be bent is completely in contact with the preset arc surface of the second stop block, that is, the actual bending effect is the same as the target bending effect, and the bending is completed. Moreover, during the bending process, the preset arc surface can also provide support force for the structure to be bent, thereby avoiding damage to the structure to be bent, thereby greatly improving the product yield.

[0101] Furthermore, in the present invention, unless otherwise expressly specified or limited, terms such as "connected," "connected," and "stacked" should be interpreted broadly. For example, they may refer to fixed or detachable connections, or integration; they may refer to direct connection or indirect connection through an intermediate medium; they may refer to internal communication between two elements or interaction between two elements. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0102] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A bending jig, characterized in that: Used to bend the to-be-bent structure of the bendable display module, the bending jig comprises: base; a first stopper provided on the base, the first stopper being used to fix the display module to be bent; a second stopper provided on the base or the first stopper, the second stopper having a preset arc surface, the curvature of the preset arc surface matching the target bending curvature of the structure to be bent; a glue coating structure having one end rotatably fixed to the base, the glue coating structure being configured to rotate to the bending zone after the structure to be bent forms the bending zone, and to coat the internal glue on a predetermined surface of the bending zone, the predetermined surface being a side of the bending zone away from the second stopper; The glue coating structure has a concave arc surface, and the curvature of the concave arc surface matches the target bending curvature of the structure to be bent; The display module to be bent further includes a module body connected to the structure to be bent, and the width of the structure to be bent is smaller than the width of the module body; The first stopper is used to contact a preset portion of the module body to fix the module body, and the preset portion is located on at least one side of a connection portion between the structure to be bent and the module body.

2. The bending jig according to claim 1, characterized in that: The first stopper includes two first sub-stoppers; The two first sub-stops are respectively located on both sides of the base; The distance between the two first sub-blocks is smaller than the width of the module body and is greater than or equal to the width of the structure to be bent.

3. The bending jig according to claim 1, characterized in that: The first stopper includes two second sub-stoppers, and the two second sub-stoppers are respectively located on both sides of the base; A telescopic structure is provided on the first side of the second sub-stop, and the first side of the second sub-stop is a side close to another second sub-stop; The telescopic structure is used to contact the module body or the structure to be bent when in an extended state, so as to fix the display module to be bent.

4. The bending jig according to claim 1, characterized in that: Also included is a first sliding assembly; The first stopper is connected to the base through the first sliding assembly.

5. The bending jig according to claim 4, characterized in that: The first sliding assembly includes a plurality of first fixed positions, and the first stopper is detachably connected to the first fixed positions.

6. The bending jig according to claim 1, characterized in that: Also included is a second sliding assembly; The second stopper is connected to the base through the second sliding assembly.

7. The bending jig according to claim 6, characterized in that: The second sliding assembly includes a plurality of second fixed positions, and the second stopper is detachably connected to the second fixed positions.

8. The bending jig according to claim 1, wherein: The first stopper includes a first portion and a second portion respectively arranged on both sides of the base, and the first portion of the first stopper is provided with a limiting structure; The first end of the second stopper is rotatably fixed on the second part, and the second end of the second stopper is detachably connected to the limiting structure.

9. The bending jig according to claim 1, characterized in that: The second stopper is provided with a suction port; The second stopper is used to absorb the structure to be bent through the absorption port during the bending process of the structure to be bent.

10. A bending method, characterized in that: The bending jig according to any one of claims 1 to 9 comprises: Fixing the display module to be bent by using the first stopper of the bending jig; Bending the to-be-bent structure of the to-be-bent display module so that the to-be-bent structure gradually fits into the preset arc surface of the second stopper, wherein the curvature of the preset arc surface matches the target bending curvature of the to-be-bent structure; The display module to be bent further includes a module body connected to the structure to be bent, and the width of the structure to be bent is smaller than the width of the module body; The first stopper is used to contact a preset portion of the module body to fix the module body, and the preset portion is located on at least one side of a connection portion between the structure to be bent and the module body.

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