Display module and detection method

Abstract

The invention discloses a display module and a detection method. The display module comprises a substrate; the crimping terminal is arranged on the substrate, and the crimping terminal is used as a signal port of the display module; the conductive part and the crimping terminal are arranged on the same side of the substrate, the conductive part and the crimping terminal are arranged in an insulated mode, and the temperature of the conductive part changes along with the temperature change of the crimping terminal. Through the display module, the product yield can be improved.

Description

Technical Field

[0001] The present application relates to the field of display technology, and in particular to a display module and a detection method. Background Art

[0002] With the continuous development of display technology, the application scope of display panels is becoming more and more extensive, and people's requirements for display panels are also becoming higher and higher. Further improving the quality of display panels has always been the goal pursued by panel manufacturers. However, the inventors of this application have found that the display panels currently manufactured are very likely to produce poor display during subsequent testing, resulting in failure of the display panels. Summary of the invention

[0003] The main technical problem solved by the present application is to provide a display module and a detection method that can improve product yield.

[0004] In order to solve the above technical problems, a technical solution adopted in the present application is: to provide a display module, including: a substrate; a crimping terminal, which is arranged on the substrate, and the crimping terminal serves as a signal port of the display module; a conductive member, which is arranged on the same side of the substrate as the crimping terminal and is insulated from the crimping terminal, wherein the temperature of the conductive member changes with the temperature of the crimping terminal.

[0005] In order to solve the above technical problems, another technical solution adopted in the present application is: providing a detection method, the method comprising: crimping the display module to the flexible circuit board through the crimping terminal, controlling the display module to perform signal interaction with the flexible circuit board; obtaining the current resistance value of the conductive part, wherein the temperature of the conductive part changes with the temperature of the crimping terminal; and determining whether to stop the signal interaction between the display module and the flexible circuit board according to the current resistance value.

[0006] The beneficial effect of the present application is that, different from the prior art, the display module proposed in the present application includes a conductive member insulated from the crimping terminal, and the temperature of the conductive member changes with the temperature of the crimping terminal, so that without affecting the normal operation of the display module, the working state of the display module is controlled according to the resistance value of the conductive member measured in real time, thereby avoiding damage to the display module and any target device coupled to the display module, thereby improving the yield of the display module and the target device. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work. Among them:

[0008] Figure 1 is a schematic cross-sectional structural diagram of an embodiment of a display module of the present application;

[0009] Figure 2 It is a schematic diagram of a top view of the structure of an embodiment of a display module of the present application;

[0010] Figure 3 It is a schematic diagram of a flow chart of an implementation method of the detection method of the present application;

[0011] Figure 4 It is a structural schematic diagram of an implementation method of the present application;

[0012] Figure 5 is a schematic cross-sectional structural diagram of another embodiment of the display module of the present application;

[0013] Figure 6 It is a schematic cross-sectional structure diagram of another embodiment of the display module of the present application. DETAILED DESCRIPTION

[0014] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments, and different embodiments can be adaptively combined. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0015] It should be noted that the terms "first" and "second" in this application are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Thus, the features defined as "first" and "second" can explicitly or implicitly include at least one of the features. In the description of this application, the meaning of "multiple" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined. In addition, the terms "including" and "having" and any of their variations are intended to cover non-exclusive inclusions. For example, a process, method, system, product or device that includes a series of steps or units is not limited to the listed steps or units, but optionally also includes steps or units that are not listed, or optionally also includes other steps or units inherent to these processes, methods, products or devices.

[0016] In the description of the present application, it should be noted that the terms "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0017] See also Figure 1 and Figure 2 , Figure 1 is a schematic cross-sectional view of an embodiment of a display module of the present application, Figure 2 It is a schematic top view of the structure of an embodiment of the display module of the present application. The display module 100 includes a substrate 110 , a crimping terminal 120 and a conductive member 130 .

[0018] The substrate 110 plays a supporting role in the display module 100, wherein the substrate 110 can be flexible, and thus can be stretched, folded, bendable or rollable, so that the display module 100 can be stretchable, foldable, bendable or rollable. The substrate 110 can be a single-layer structure or a laminated structure. In an application scenario, the substrate 110 can include at least one organic layer and at least one inorganic layer stacked in layers. The material of the organic layer can be a flexible material such as polyimide, and the material of the inorganic layer can be a material with good water vapor barrier performance such as silicon nitride. At the same time, the substrate 110 can be transparent, translucent or opaque. Of course, the substrate 110 can also be a rigid substrate, for example, its material is glass. In short, the present application does not limit the specific structure of the substrate 110.

[0019] The crimping terminal 120 is disposed on the substrate 110 and serves as a signal port of the display module 100. The material of the crimping terminal 120 may be at least one of copper, aluminum, and gold. After the display module 100 is crimped onto the target device through the crimping terminal 120, the display module 100 performs signal exchange with the target device through the crimping terminal 120.

[0020] The conductive member 130 and the crimping terminal 120 are arranged on the same side of the substrate 110 and are insulated from the crimping terminal 120, wherein the temperature of the conductive member 130 changes with the temperature of the crimping terminal 120. In addition, since the resistance value of the conductive member 130 changes with the temperature of the conductive member 130, when an aging test is performed on a device including the above-mentioned display module 100, it is determined whether the device has a risk of burns based on the change in the resistance value of the conductive member 130. In an application scenario, the conductive member 130 is a metal layer, which has a low production cost and difficulty, and occupies a small space in the display module 100, so as to avoid a significant impact on the overall thickness of the display module 100.

[0021] The display module 100 proposed in the present application includes a conductive member 130 insulated from a crimping terminal 120. The temperature of the conductive member 130 changes with the temperature of the crimping terminal 120. Therefore, under the premise of not affecting the normal operation of the display module 100, the working state of the display module 100 is controlled according to the resistance value of the conductive member 130 measured in real time, thereby avoiding damage to the display module 100 and any target device coupled to the display module 100, thereby improving the yield of the display module 100 and the target device.

[0022] See also Figure 1 , Figure 2 , Figure 3 as well as Figure 4 , Figure 3 It is a schematic diagram of a flow chart of an implementation method of the detection method of the present application. Figure 4 1 is a schematic diagram of the structure of an embodiment of the detection method of the present application. The detection method is applied to the display module 100 and the target device matched with the display module 100, so that when the device consisting of the display module 100 and the target device is subjected to aging detection according to the detection method, damage to the display module 100 can be effectively avoided, thereby improving the product yield. Specifically, when the above-mentioned target device is a flexible circuit board, the detection method includes:

[0023] S101: crimping the display module 100 onto the flexible circuit board 200 via the crimping terminal 120, and controlling the display module 100 to perform signal exchange with the flexible circuit board.

[0024] Specifically, the display module 100 is crimped onto the flexible circuit board 200 via the crimping terminals 120 , and the display module 100 and the flexible circuit board 200 are allowed to exchange signals.

[0025] S102 : obtaining a current resistance value of the conductive member 130 , wherein the temperature of the conductive member 130 changes as the temperature of the crimping terminal 130 changes.

[0026] Specifically, after the display module 100 and the flexible circuit board 200 perform signal interaction, the current resistance value of the conductive element 130 in the display module 100 at the sampling time is obtained. The conductive element 130 is disposed in the display module 100 .

[0027] In an application scenario, the display module 100 includes a substrate 110 , a crimping terminal 120 and a conductive member 130 disposed on the same side of the substrate 110 , and the crimping terminal 120 and the conductive member 130 are insulated from each other.

[0028] In an application scenario, a signal generator is connected to the conductive member 130 to measure the current resistance value of the conductive member 130 at the current moment.

[0029] S103: Determine whether to stop the signal interaction between the display module 100 and the flexible circuit board 200 according to the current resistance value.

[0030] Specifically, the current resistance value of the conductive member 130 can reflect the temperature of the display module 100. When it is determined that the temperature of the display module 100 is abnormal through the current resistance value, it is determined that a large current may have occurred between the display module 100 and the flexible circuit board 200. If the signal interaction between the display module 100 and the flexible circuit board 200 is not stopped, equipment damage may occur. If it is determined that the temperature of the display module 100 is normal through the current resistance value, it means that the signal interaction between the display module 100 and the flexible circuit board 200 is normal, and the signal interaction between the display module 100 and the flexible circuit board 200 can continue.

[0031] In one embodiment, a safe resistance interval is pre-stored, and step S103 specifically determines whether the current resistance value is within the safe resistance interval. If the current resistance value is within the safe resistance interval, it means that the temperatures of the display module 100 and the flexible circuit board 200 are normal, and further indicates that the operating status of the display module 100 and the flexible circuit board 200 is not abnormal, and there is no need to stop the signal interaction between the display module 100 and the flexible circuit board 200 until the preset detection time is reached to complete the current round of detection. If the current resistance value is outside the safe resistance interval, it means that the temperature of at least one of the display module 100 and the flexible circuit board 200 is abnormally increased, the state is abnormal, and the signal interaction between the display module 100 and the flexible circuit board 200 is stopped, that is, the detection is stopped immediately, thereby avoiding damage to the display module 100 and the flexible circuit board 200.

[0032] Further, in response to the display module 100 and the flexible circuit board 200 not generating abnormalities in the current round of detection, the next round of detection is performed, and the detection process is the same as the previous round. When the detection round reaches the preset round, and the display module 100 and the target device have not been abnormal, the detection is completed. In other words, during the detection process, the resistance value of the conductive member 130 at the sampling moment can be obtained multiple times, and then at each sampling moment, it is determined whether the display module 100 and the flexible circuit board 200 are abnormal. Of course, in other embodiments, the resistance value of the conductive member 130 can also be monitored in real time, so that abnormalities can be discovered in time.

[0033] In the above scheme, after the driving signal is transmitted to the display module 100 and the flexible circuit board 200, the display module 100 and the flexible circuit board 200 are subjected to aging detection, and the current resistance value of the conductive member 130 obtained in real time is used to determine whether any one of the display module 100 and the flexible circuit board 200 is abnormal, thereby reducing the probability of damage to the display module 100 and the flexible circuit board 200. Of course, the above detection method can also be implemented when the display module 100 and the flexible circuit board 200 are working normally. When at least one of the display module 100 and the flexible circuit board 200 is abnormal in the working state according to the conductive member 130, the display module 100 and the flexible circuit board 200 are stopped from working to play a corresponding protective role.

[0034] In another embodiment, the implementation process of the above step S103 can also be: according to the current resistance value and the initial resistance value, determine whether to stop the signal interaction between the display module 100 and the flexible circuit board 200. The initial resistance value is the resistance value of the conductive member 130 before the display module 100 and the flexible circuit board 200 interact with each other.

[0035] Specifically, after each crimping terminal 120 of the display module 100 is crimped with the corresponding matching terminal on the flexible circuit board 200, the interaction between the display module 100 and the flexible circuit board 200 is not performed first, but the resistance value of the conductive member 130 is measured first as the initial resistance value. Then, during the signal transmission process between the display module 100 and the flexible circuit board 200, the current resistance value of the conductive member 130 at the current moment is obtained, and the absolute value of the difference between the current resistance value and the initial resistance value is compared with the threshold. In response to the absolute value of the difference between the current resistance value and the initial resistance value being greater than the threshold, it indicates that the temperature of at least one of the display module 100 and the flexible circuit board 200 is abnormally increased, an abnormality is generated, and then the signal interaction between the display module 100 and the flexible circuit board 200 is stopped. In response to the absolute value of the difference between the current resistance value and the initial resistance value being less than or equal to the threshold, it indicates that the temperature of both the display module 100 and the flexible circuit board 200 is normal, both are operating in a safe state, and there is no need to stop the signal interaction between the display module 100 and the flexible circuit board 200.

[0036] In another embodiment, the implementation process of the above-mentioned step S103 may also include: after determining to continue controlling the signal interaction between the display module 100 and the flexible circuit board 200 according to the current resistance value, after reaching a preset time interval, returning to execute the step of obtaining the current resistance value of the conductive member 130, and determining whether to stop the signal interaction between the display module 100 and the flexible circuit board 200 according to the current resistance value.

[0037] Specifically, when the display module 100 and the flexible circuit board 200 perform signal interaction, when the current resistance value of the conductive member 130 is within the safe resistance range, or the absolute value of the difference between the current resistance value of the conductive member 130 and the initial resistance value is less than or equal to the threshold value, the signal interaction state between the display module 100 and the flexible circuit board 200 is normal. When the display module 100 and the flexible circuit board 200 perform normal signal interaction, the current resistance value of the conductive member 130 is obtained at every preset time interval, and according to the current resistance value, it is determined whether the signal interaction between the display module 100 and the flexible circuit board 200 is abnormal. When the signal interaction between the display module 100 and the flexible circuit board 200 is abnormal, the signal interaction is stopped, and it is determined that the display module 100 or the flexible circuit board 200 has not passed the test; or, when the detection time reaches the preset detection time, the signal interaction between the display module 100 and the flexible circuit board 200 is stopped, and it is determined that the display module 100 and the flexible circuit board 200 have passed the test. The preset time interval may be obtained through estimation, or may be obtained through reverse calculation after multiple tests.

[0038] In another embodiment, the conductive member 130 and the display module 100 can be separately provided. Based on this, before step S101, it includes: attaching the conductive member 130 to the side of the flexible circuit board away from the display module 100, so that the temperature of the conductive member 130 changes with the temperature of the flexible circuit board.

[0039] Furthermore, the detection is performed by the detection method mentioned in the above corresponding embodiment, and after the signal interaction between the display module 100 and the flexible circuit board is stopped, the conductive member 130 is torn off and the display module 100 is separated from the flexible circuit board. This method allows the conductive member 130 to be reused; and, unlike directly fixing the conductive member 130 in the display module 130, the conductive member 130 is separated after the detection is completed, so as to simplify the structure of the display module 100 and reduce the manufacturing cost of the display module 100.

[0040] Please continue reading Figure 1 and Figure 2 In the display module 100 proposed in the present application, the conductive member 130 and the crimping terminal 120 are sequentially arranged in a direction away from the substrate 110, that is, the crimping terminal 120 is arranged on the side of the conductive member 130 away from the substrate 110, so that the target device can exchange information with the display module 100 through the crimping terminal 120. The conductive member 130 and the crimping terminal 120 are insulated to prevent the conductive member 130 from interfering with the signal interaction of the crimping terminal 120.

[0041] The conductive member 130 has good electrical conductivity and thermal conductivity, and its material includes at least one of copper, aluminum, and gold. Also, the resistance value of the conductive member 130 changes with the temperature of the conductive member 130, so that when the display module 100 and the flexible circuit board perform signal interaction, the current resistance value of the conductive member 130 is obtained to detect the state of the signal interaction between the display module 100 and the flexible circuit board.

[0042] Please continue reading Figure 1 and Figure 2 , the conductive member 130 and the orthographic projection of the crimping terminal 120 on the substrate 110 at least partially overlap, so that the conductive member 130 is close to the crimping terminal 120, so that the temperature change of the crimping terminal 120 can be detected more timely and accurately. Of course, in other embodiments, the orthographic projections of the conductive member 130 and the crimping terminal 120 on the substrate 110 can also be arranged at intervals.

[0043] Continue reading Figure 2In one embodiment, there are multiple crimping terminals 120, and the conductive member 130 at least partially overlaps with the positive projection of each crimping terminal 120 on the substrate 110, so that the conductive member 130 can accurately sense the temperature change of each crimping terminal 120 during the subsequent detection process, thereby improving the detection accuracy.

[0044] Continue reading Figure 2 In order to facilitate information exchange between the display module 100 and other devices, each crimping terminal 120 extends along the first direction X, and multiple crimping terminals 120 are arranged at intervals along the second direction Y, wherein the conductive member 130 extends along the second direction Y, and the first direction X and the second direction Y intersect and are parallel to the substrate 110, that is, the extension direction of the conductive member 130 is the same as the arrangement direction of the multiple crimping terminals 120. In addition, the intervals between adjacent crimping terminals 120 in the second direction Y may be the same or different, and the present application does not limit this.

[0045] In an application scenario, the second direction Y is perpendicular to the first direction X, that is, the extension direction of each crimping terminal 120 is perpendicular to the extension direction of the conductive member 130 , so as to save the space occupied by the crimping terminal 120 and the conductive member 130 in the display module 100 .

[0046] Please continue reading Figure 1 In order to achieve insulation between the conductive member 130 and the crimping terminal 120, the display module 100 proposed in the present application further includes an insulating layer 140. Specifically, in the direction away from the substrate 110, the conductive member 130, the insulating layer 140, and the crimping terminal 120 are arranged in sequence, and the orthographic projections of the conductive member 130, the insulating layer 140, and the crimping terminal 120 on the substrate 110 overlap, that is, at least part of the insulating layer 140 is located between the conductive member 130 and the crimping terminal 120, so as to block the conductive member 130 and the crimping terminal 120, and avoid electrical connection between the conductive member 130 and the crimping terminal 120.

[0047] In one embodiment, the material of the insulating layer 140 includes polyimide. Of course, in other embodiments, the material of the insulating layer 140 may also include at least one of an organic material and an inorganic material.

[0048] In another embodiment, grooves may be formed on the surface of the substrate 110 to place the conductive member 130, for example, see Figure 5 , Figure 5It is a schematic cross-sectional structure diagram of another embodiment of the display module of the present application, and the substrate 110 includes a first surface 111 and a second surface 112 arranged opposite to each other. A groove 113 for accommodating the conductive member 130 is provided on one side of the first surface 111 of the substrate 110. During the preparation process, the manufactured conductive member 130 is arranged in the groove 113, and an insulating layer 140 is arranged in the groove 113, so that one side surface of the insulating layer 140 is flush with the first surface 111 of the substrate 110, so as to reduce the difficulty of subsequently setting the crimping terminal 120 on one side of the first surface 111. Among them, the above-mentioned groove 113 can be obtained by etching by physical or chemical methods. Of course, in other embodiments, the conductive member 130 can also be formed in the groove 113 by electroplating or the like.

[0049] Please continue reading Figure 2 The display module 100 further includes two test terminals 131, which are electrically connected to two ends of the conductive member 130. During the detection process, the two test terminals 131 are connected to a signal generator so that the signal generator measures the resistance value of the conductive member 130 through the two test terminals 131.

[0050] In one application scenario, the test terminal 131 and the conductive member 130 are arranged in the same layer, so that during the preparation process, the test terminal 131 and the conductive member 130 can be prepared by the same pattern process, thereby ensuring the preparation efficiency. In one application scenario, the test terminal 131 can be electrically connected to the conductive member 130 through a conductive adhesive; or the test terminal 131 and the conductive member 130 can be electrically connected by welding; or the test terminal 131 and the conductive member 130 are integrally formed.

[0051] It should be noted that when the conductive member 130 can be disposed in the groove 113 on the substrate 110 , the groove 113 also includes a corresponding area to accommodate the test terminal 131 .

[0052] In another embodiment, the test terminal 131 may also be stacked with the conductive member 130 , and in this case, the two may be electrically connected through a via hole between the film layers.

[0053] Please continue reading Figure 2 , the crimping terminal extends along the first direction X, and in the second direction Y intersecting the first direction X, the orthographic projections of the two test terminals 131 on the substrate 110 are distributed on both sides of the orthographic projections of the crimping terminal 120 on the substrate 110. The determination of the first direction X and the second direction Y can refer to the corresponding embodiments above, and will not be elaborated on in detail here.

[0054] In one application scenario, there are multiple crimping terminals 120, and the orthographic projections of the two test terminals 131 on the substrate 110 are distributed on both sides of the orthographic projections of the multiple crimping terminals 120 on the substrate 110, so that the orthographic projection of the conductive member 130 on the substrate 110 can be easily set to at least partially overlap with the orthographic projection of each crimping terminal 120 on the substrate 110.

[0055] In yet another embodiment, see Figure 6 , Figure 6 It is a schematic cross-sectional structure diagram of another embodiment of the display module of the present application. In the display module 100 proposed in the present application, the crimping terminal 120 and the conductive member 130 are arranged on the same side of the substrate 110, and in the direction away from the substrate 110, the crimping terminal 120 and the conductive member 130 are arranged in sequence, that is, the conductive member 130 is arranged on the upper layer of the crimping terminal 120. An insulating layer 140 is arranged between the conductive member 130 and the crimping terminal 120, and at least part of the crimping terminal 120 is exposed from the insulating layer 140, so that other devices can exchange information with the display module 100 through the crimping terminal 120.

[0056] It should be noted that the above embodiments are described with the crimping terminal 120 and the conductive member 130 being arranged on the same side of the substrate 110, but the present application is not limited thereto, and in other embodiments, the crimping terminal 120 and the conductive member 130 may also be arranged on opposite sides of the substrate 110. In short, as long as the crimping terminal 120 and the conductive member 130 are insulated, the resistance value of the conductive member 130 can change with the temperature change of the crimping terminal 120.

[0057] The above description is only an implementation method of the present application, and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly used in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A display module, characterized in that: The display module comprises: substrate; A crimping terminal, arranged on the substrate, the crimping terminal serving as a signal port of the display module; A conductive member is arranged on the same side of the substrate as the crimping terminal and is insulated from the crimping terminal, wherein the temperature of the conductive member changes with the temperature of the crimping terminal.

2. The display module according to claim 1, characterized in that: In a direction away from the substrate, the conductive member and the crimping terminal are arranged in sequence; Preferably, the material of the conductive member includes at least one of copper, aluminum and gold; Preferably, the resistance value of the conductive member changes with the temperature of the conductive member.

3. The display module according to claim 2, characterized in that: The conductive member and the orthographic projection of the crimping terminal on the substrate at least partially overlap; Preferably, there are a plurality of crimping terminals, and the conductive member at least partially overlaps with the orthographic projection of each crimping terminal on the substrate; Preferably, the crimping terminal extends along a first direction, and a plurality of the crimping terminals are arranged at intervals along a second direction, wherein the conductive member extends along the second direction, and the first direction and the second direction intersect and are both parallel to the substrate; Preferably, the second direction is perpendicular to the first direction.

4. The display module according to claim 2, characterized in that: The display module further comprises an insulating layer, and in a direction away from the substrate, the conductive member, the insulating layer, and the crimping terminal are arranged in sequence, and the orthographic projections of the conductive member, the insulating layer, and the crimping terminal on the substrate overlap; Preferably, the material of the insulating layer includes polyimide.

5. The display module according to claim 1, characterized in that: The display module further comprises two test terminals, and the two test terminals are electrically connected to two ends of the conductive member respectively; Preferably, the test terminal and the conductive member are arranged at the same layer; Preferably, the test terminal and the conductive member are integrally formed.

6. The display module according to claim 5, characterized in that: The crimping terminal extends along a first direction, and in a second direction intersecting the first direction, the orthographic projections of the two test terminals on the substrate are distributed on both sides of the orthographic projections of the crimping terminal on the substrate; Preferably, there are multiple crimping terminals, and the orthographic projections of the two test terminals on the substrate are distributed on both sides of the orthographic projections of the multiple crimping terminals on the substrate.

7. A detection method, characterized in that: The method comprises: The display module is crimped onto the flexible circuit board through the crimping terminal. Controlling the display module to perform signal interaction with the flexible circuit board; Acquiring a current resistance value of a conductive member, wherein a temperature of the conductive member changes with a temperature change of the crimping terminal; According to the current resistance value, it is determined whether to stop the signal interaction between the display module and the flexible circuit board.

8. The method according to claim 7, characterized in that The step of determining whether to stop the signal interaction between the display module and the flexible circuit board according to the current resistance value includes: Determining whether to stop the signal interaction between the display module and the flexible circuit board according to the current resistance value and the initial resistance value, wherein the initial resistance value is the resistance value of the conductive member before the display module and the flexible circuit board perform signal interaction; Preferably, the step of determining whether to stop the signal interaction between the display module and the flexible circuit board according to the current resistance value and the initial resistance value includes: In response to an absolute value of a difference between the current resistance value and the initial resistance value being greater than a threshold value, stopping signal interaction between the display module and the flexible circuit board; Preferably, the method further comprises: After determining to continue controlling the signal interaction between the display module and the flexible circuit board based on the current resistance value, after reaching a preset time interval, return to execute the step of obtaining the current resistance value of the conductive member, and the step of determining whether to stop the signal interaction between the display module and the flexible circuit board based on the current resistance value.

9. The detection method according to claim 7, characterized in that: Before the step of controlling the display module to perform signal interaction with the flexible circuit board, the method includes: Attaching the conductive member to a side of the flexible circuit board away from the display module; And, the method further comprises: After stopping the signal interaction between the display module and the flexible circuit board, the conductive member is torn off, and the display module is separated from the flexible circuit board.

10. The detection method according to claim 7, characterized in that: The conductive member is arranged in the display module; Preferably, the display module comprises a substrate, the crimping terminal and the conductive member which are arranged on the same side of the substrate, and the crimping terminal is insulated from the conductive member.

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