Display module and display device

Abstract

This invention belongs to the field of electrical technology, specifically relating to a display module and display device. The display module includes a display area, a non-display area, and a transition area located between the display area and the non-display area. The transition area connects the display area and the non-display area and includes at least one transition structure, comprising: a main connecting bridge connected to both the display area and the non-display area; a tension auxiliary connecting bridge connected to both the display area and the non-display area; and multiple signal lines, at least partially arranged on the main connecting bridge. The extension directions of the main connecting bridge and the tension auxiliary connecting bridge are consistent with the direction from the display area to the non-display area. The display module and display device of this application can ensure the stability of signal transmission.

Description

Technical Field

[0001] This application belongs to the field of electrical technology, specifically relating to a display module and display device. Background Technology

[0002] Currently, flexible and foldable display technologies have matured and are gradually being industrialized. Compared to traditional rigid displays, they possess basic bending and deformation capabilities, greatly expanding the form and application scenarios of display devices. As an advanced form of flexible display technology, stretchable display devices can achieve multi-angle, large-deformation stretching, twisting, and bonding deformation, adapting to any irregular curved surface carrier. This represents the core development trend of future flexible display technology and possesses extremely high scientific research value and market application prospects.

[0003] In related technologies, the signal lines of stretchable display devices are easily damaged, affecting the stability of signal transmission. Summary of the Invention

[0004] To address the aforementioned technical problems, this invention provides a display module and display device, which aims to at least partially solve the technical problem that the signal lines of stretchable display devices are easily damaged, affecting the stability of signal transmission.

[0005] The technical solution of this invention is as follows: A display module includes a display area, a non-display area, and a transition area located between the display area and the non-display area. The transition area connects the display area and the non-display area. The transition area includes at least one transition structure, which includes: a main connecting bridge connected to the display area and the non-display area; a stretching auxiliary connecting bridge connected to the display area and the non-display area; and a plurality of signal lines, at least partially arranged on the main connecting bridge. The extension directions of the main connecting bridge and the stretching auxiliary connecting bridge are consistent with the direction from the display area to the non-display area.

[0006] In some embodiments, the stretching auxiliary connecting bridge includes a plurality of auxiliary parts and at least one first connecting part. Along the direction from the display area to the non-display area, two adjacent auxiliary parts are connected through the first connecting part, and one end of the plurality of auxiliary parts is connected to the display area and the other end is connected to the non-display area.

[0007] In some embodiments, along the direction from the display area to the non-display area, the first connecting portion has a first side facing the display area and a second side facing the non-display area, and the number of auxiliary portions connected to the first side is less than the number of auxiliary portions connected to the second side.

[0008] In some implementations, the stiffness of the auxiliary part gradually increases along the direction from the display area to the non-display area.

[0009] In some embodiments, the stiffness of the auxiliary portion closer to the non-display area is greater than the stiffness of the auxiliary portion farther from the non-display area.

[0010] In some embodiments, when there are multiple auxiliary parts, the main connecting bridge is located between two adjacent auxiliary parts.

[0011] In some implementations, the auxiliary part includes a plurality of first connecting bridges connected in sequence, with two adjacent first connecting bridges arranged at an angle, and the plurality of first connecting bridges overlapping each other along the direction from the display area to the non-display area.

[0012] In some embodiments, the main connecting bridge includes multiple bends and at least one second connecting portion. Along the direction from the display area to the non-display area, adjacent bends are connected via the second connecting portion. One end of each bend is connected to the display area, and the other end is connected to the non-display area. Each bend includes multiple sequentially connected second connecting bridges. Adjacent second connecting bridges are arranged at an angle. Along the direction from the display area to the non-display area, the multiple second connecting bridges overlap. The number of first connecting bridges located on the same side of the second connecting portion is greater than or equal to the number of second connecting bridges, and the length of the first connecting bridges located on the same side of the second connecting portion is less than or equal to the length of the second connecting bridges.

[0013] In some implementations, the second connecting portion is integrally formed with the first connecting portion.

[0014] In some implementations, the auxiliary part includes a plurality of third connecting parts and a plurality of fine-tuning rings, with two adjacent fine-tuning rings connected by the third connecting parts.

[0015] In some implementations, the tension-assisted connecting bridge is provided with a spare signal line, which is connected in parallel with the signal line.

[0016] In some implementations, multiple signal lines are respectively arranged on the tension auxiliary connecting bridge and the main connecting bridge.

[0017] In some implementations, when there are multiple transition structures, two adjacent transition structures are connected by at least one third connecting bridge.

[0018] Based on the same inventive concept, this application also provides a display device, including the aforementioned display module.

[0019] The beneficial effects of the present invention include at least the following: Since the display module includes a display area, a non-display area, and a transition area between the display area and the non-display area, the transition area connects the display area and the non-display area. The transition area includes at least one transition structure, which includes a main connecting bridge, a tensile auxiliary connecting bridge, and multiple signal lines. The main connecting bridge connects to both the display area and the non-display area, and the tensile auxiliary connecting bridge also connects to both the display area and the non-display area. At least some of the signal lines are arranged on the main connecting bridge. The extension directions of the main connecting bridge and the tensile auxiliary connecting bridge are consistent with the direction from the display area to the non-display area. Therefore, when the display area is stretched, the tensile auxiliary connecting bridge can distribute some of the deformation stress, reducing the stress transmitted to the main connecting bridge. Stress loads are applied, and the tension-assisted connecting bridge can improve the overall structural stiffness of the transition zone. It can also adjust the overall deformation of the transition zone during tensioning, suppressing excessive deformation of the main connecting bridge. In other words, under the same tensile force, the overall deformation of the transition zone is smaller, and the stress and deformation amplitude of the main connecting bridge are reduced simultaneously. This effectively protects the main connecting bridge and the multiple signal lines laid on it, ensuring the structural integrity of the main connecting bridge that carries the signal lines. It further stabilizes the layout and electrical connection performance of the signal lines, thereby avoiding faults such as line breakage and circuit failure caused by excessive deformation of the main connecting bridge, ensuring the safety of the signal lines and the stability of signal transmission.

[0020] Moreover, under the cyclical working conditions of repeated stretching and rebound in the display area, the stretching auxiliary connecting bridge can improve the overall structural stability and deformation consistency of the transition area, effectively buffer the fatigue stress generated by reciprocating deformation, avoid structural damage caused by continuous stress accumulation, further improve the structural integrity of the main connecting bridge, thereby improving the fatigue resistance of the signal line, further ensuring the safety of the signal line, and ensuring the stability of signal transmission. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] Figure 1 This is a first structural schematic diagram of a display module according to some embodiments; Figure 2 This is a schematic diagram of the second structure of a display module in some embodiments; Figure 3 for Figure 1 A schematic diagram of the first structure of the tension auxiliary connecting bridge of the display module; Figure 4 for Figure 1The diagram shows the second structure of the stretching auxiliary connecting bridge of the display module. Figure 5 for Figure 1 The diagram shows the third structure of the stretching auxiliary connecting bridge of the display module; Figure 6 for Figure 5 Enlarged schematic diagram of point A of the tension-assisted connecting bridge.

[0023] In the attached image: Display area 10; Non-display area 20; Transition zone 30, transition structure 31, main connecting bridge 311, bending part 3111, second connecting part 3112, tension auxiliary connecting bridge 312, auxiliary part 3121, first connecting bridge 31211, third connecting part 31212, fine-tuning ring 31213, first connecting part 3122, signal line 313, third connecting bridge 32; GOA40; Binding area 50. Detailed Implementation

[0024] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0025] It should be noted that all directional indications in the embodiments of the present invention are only used to explain the relative positional relationship and movement of the components in a specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0026] In this invention, unless otherwise explicitly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0027] Furthermore, in this invention, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this invention.

[0028] To enable display devices to withstand tensile deformation, a substrate cutout structure is typically used. This cutout releases stress and strain generated during stretching, thus reducing tensile damage to the overall structure. However, when a display undergoes tensile deformation, a high concentration of stress and strain occurs at the junction of the cutout and non-cutout areas. The metal signal lines in this area are subjected to this concentrated stress over a long period, making them highly susceptible to instantaneous tensile fracture. Furthermore, under repeated stretching and rebound cycles, fatigue cumulative damage can easily occur, leading to fatigue fracture. Ultimately, this directly results in display abnormalities and functional failure, reducing the lifespan and operational stability of the stretchable display device.

[0029] In view of these technical problems, this application provides a display module and display device, which aims to solve the technical problem that the signal lines of the stretchable display device are easily damaged, affecting the stability of signal transmission.

[0030] The design concept of this application is as follows: the main connecting bridge is connected to the display area and the non-display area, and the stretching auxiliary connecting bridge is connected to the display area and the non-display area, thereby achieving the technical effect of ensuring the safety of the signal line and ensuring the stability of signal transmission.

[0031] Specific technical solutions will now be described in detail with reference to the accompanying drawings, which are not necessarily drawn to scale. Similar or identical reference numerals may be used to designate the same or similar parts in different figures. The use of similar or identical reference numerals in different figures does not mean that all figures including similar or identical reference numerals constitute a single or the same embodiment. The accompanying drawings illustrate the various embodiments discussed in this application in a generalized, illustrative, and not restrictive manner.

[0032] Combination Figure 1 , Figure 3 , Figure 4 and Figure 5This application embodiment's display module includes a display area 10, a non-display area 20, and a transition area 30 located between the display area 10 and the non-display area 20. The transition area 30 connects the display area 10 and the non-display area 20. The transition area 30 includes at least one transition structure 31, which includes a main connecting bridge 311, a tension auxiliary connecting bridge 312, and signal lines 313. The main connecting bridge 311 is connected to the display area 10 and the non-display area 20. The tension auxiliary connecting bridge 312 is also connected to the display area 10 and the non-display area 20. Multiple signal lines 313 are at least partially arranged on the main connecting bridge 311. The extension direction of the main connecting bridge 311 and the extension direction of the tension auxiliary connecting bridge 312 are consistent with the direction from the display area 10 to the non-display area 20.

[0033] Display area 10 is a stretchable display area.

[0034] Since the display module includes a display area 10, a non-display area 20, and a transition area 30 located between the display area 10 and the non-display area 20, the transition area 30 connects the display area 10 and the non-display area 20. The transition area 30 includes at least one transition structure 31, which includes a main connecting bridge 311, a stretching auxiliary connecting bridge 312, and multiple signal lines 313. The main connecting bridge 311 is connected to the display area 10 and the non-display area 20, and the stretching auxiliary connecting bridge 312 is also connected to the display area 10 and the non-display area 20. The multiple signal lines 313 are at least partially arranged on the main connecting bridge 311. The extension direction of the main connecting bridge 311 and the extension direction of the stretching auxiliary connecting bridge 312 are consistent with the direction from the display area 10 to the non-display area 20. Therefore, when the display area 10 is stretched, the stretching auxiliary connecting bridge 312 can share a portion of the deformation. The stress is reduced, and the stress load transmitted to the main connecting bridge 311 is reduced. At the same time, the tension auxiliary connecting bridge 312 can improve the overall structural stiffness of the transition zone 30 and adjust the overall deformation of the transition zone 30 during the tensioning process, suppressing excessive deformation of the main connecting bridge 311. In other words, under the same tensile force, the overall deformation of the transition zone 30 is smaller, and the stress and deformation amplitude of the main connecting bridge 311 are reduced simultaneously. This effectively protects the main connecting bridge 311 and the multiple signal lines 313 arranged on it, ensuring the structural integrity of the main connecting bridge 311 that carries the signal lines 313, further stabilizing the layout and electrical connection performance of the signal lines 313, thereby avoiding faults such as line breakage and circuit failure caused by excessive deformation of the main connecting bridge 311, ensuring the safety of the signal lines 313, and ensuring the stability of signal transmission.

[0035] Moreover, under the cyclical working condition of repeated stretching and rebound in the display area 10, the stretching auxiliary connecting bridge 312 can improve the overall structural stability and deformation consistency of the transition area 30, effectively buffer the fatigue stress generated by reciprocating deformation, avoid structural damage caused by continuous stress accumulation, further improve the structural integrity of the main connecting bridge 311, thereby improving the fatigue resistance of the signal line 313, further ensuring the safety of the signal line 313, and ensuring the stability of signal transmission.

[0036] Combination Figure 1 and Figure 2 In some embodiments, the display module further includes a GOA (Gate On Array) 40, which can be arranged in the display area 10 or in the non-display area 20.

[0037] Combination Figure 1 and Figure 2 In some embodiments, the display module further includes a binding area 50, which is connected to the non-display area 20.

[0038] In some embodiments, the display module further includes an EOA (Edge Gate Driver on Array), which may be arranged in the display area 10 or in the non-display area 20.

[0039] Combination Figure 3 , Figure 4 and Figure 5 In some embodiments, in order to further improve the structural integrity of the main connecting bridge 311, the tension auxiliary connecting bridge 312 includes a plurality of auxiliary parts 3121 and at least one first connecting part 3122. Along the direction from the display area 10 to the non-display area 20, two adjacent auxiliary parts 3121 are connected through the first connecting part 3122. One end of the plurality of auxiliary parts 3121 is connected to the display area 10 and the other end is connected to the non-display area 20.

[0040] During the stretching of the display area 10, the stress is gradually buffered and released through multiple auxiliary parts 3121 to disperse the stress of the entire stretching auxiliary connecting bridge 312, so that the stress release is smooth and the stretching auxiliary connecting bridge 312 can stably share the load of the main connecting bridge 20 for a long time. Moreover, during the stretching process of the display area 10, each auxiliary part 3121 makes small adjustments to its tilt and extension posture, which can adapt to the deformation rhythm of the main connecting bridge 311 synchronously, and can always maintain the state of parallel synchronous force of the main connecting bridge 311 and the stretching auxiliary connecting bridge 312, so as to stably achieve the stress diversion effect.

[0041] Combination Figure 3 , Figure 4 and Figure 5In some embodiments, when the display area 10 is under tension, the stress and strain in the transition area 30 gradually increase from the display area 10 to the non-display area 20. To further improve the structural integrity of the main connecting bridge 311, along the direction from the display area 10 to the non-display area 20, the first connecting portion 3122 has a first side facing the display area 10 and a second side facing the non-display area 20. The number of auxiliary portions 3121 connected to the first side is less than the number of auxiliary portions 3121 connected to the second side, so that the stiffness of the second side of the first connecting portion 3122 is greater than the stiffness of the first side, so that the tension auxiliary connecting bridge 312 along... The display area 10 to the non-display area 20 form a gradient structure with gradually increasing stiffness, which precisely matches the gradient stress distribution of the transition area 30. This reduces the accumulation of stress at the non-display area 20 end, allowing the entire tensile auxiliary connecting bridge 312 to bear load in stages. This effectively reduces the stress on the main connecting bridge 311 near the non-display area 20. The gradient structure improves the overall equivalent stiffness of the transition area 30. Under the same tensile force, the overall deformation of the transition area 30 is smaller. The stress and deformation amplitude of the main connecting bridge 311 are reduced simultaneously, balancing the overall stress level of the main connecting bridge 311, suppressing excessive local deformation, and ensuring the structural integrity of the main connecting bridge 311.

[0042] In some embodiments, when the display area 10 is stretched, the overall stress and strain of the transition area 30 gradually increase from the display area 10 to the non-display area 20. The area near the non-display area 20 is the stress concentration region of the main connecting bridge 311. To ensure the structural integrity of the main connecting bridge 311, the stiffness of the auxiliary part 3121 gradually increases along the direction from the display area 10 to the non-display area 20. That is, the stiffness of the auxiliary part 3121 near the display area 10 is smaller to accommodate the lower stress level there, while the stiffness of the auxiliary part 3121 near the non-display area 20 is increased to enhance the stress distribution capacity at that location, effectively reducing the stress load at various points on the main connecting bridge 311. At the same time, it can improve the overall equivalent stiffness of the transition zone 30, and under the same tensile force, the transition zone 30 can produce smaller deformation. The gradual deformation of the auxiliary part 3121 is matched with the deformation trend of the main connecting bridge 311, and the main connecting bridge 311 and the tensile auxiliary connecting bridge 312 are stably maintained in a state of coordinated force bearing. It can effectively suppress the excessive local deformation of the main connecting bridge 311, balance the stress level of the main connecting bridge 311 along its entire length, fully ensure the structural integrity of the main connecting bridge 311, and at the same time ease the tension of the signal line 313 laid on the main connecting bridge 311, further ensuring the safety of the signal line 313 and ensuring the stability of signal transmission.

[0043] In some embodiments, when the display area 10 is stretched, the overall stress and strain of the transition area 30 gradually increase from the display area 10 to the non-display area 20. The area near the non-display area 20 is the stress concentration area of ​​the main connecting bridge 311. In order to ensure the structural integrity of the main connecting bridge 311, the stiffness of the auxiliary part 3121 near the non-display area 20 is greater than that of the auxiliary part 3121 far from the non-display area 20. By having the high-stiffness auxiliary part 3121 bear more deformation stress in the high-stress area, the stress of the main connecting bridge 311 is accurately reduced, and the overall equivalent stiffness of the transition area 30 is improved. Under the same tensile force, the overall deformation of the transition area 30 can be reduced. The stress and deformation amplitude of the main connecting bridge 311 are reduced simultaneously, the overall stress level of the main connecting bridge 311 is balanced, excessive local deformation is suppressed, and the structural integrity of the main connecting bridge 311 is ensured.

[0044] Combination Figure 3 , Figure 4 and Figure 5 In some embodiments, in order to ensure the structural integrity of the main connecting bridge 311, when there are multiple auxiliary parts 3121, the main connecting bridge 311 is located between two adjacent auxiliary parts 3121. When the display area 10 is stretched, the deformation stress of the main connecting bridge 311 can be distributed bidirectionally to the auxiliary parts 3121 on both sides, avoiding unilateral load on the main connecting bridge 311, effectively reducing the overall stress level of the main connecting bridge 311, balancing the overall stress level of the main connecting bridge 311, suppressing excessive local deformation, and ensuring the structural integrity of the main connecting bridge 311.

[0045] Of course, in some other embodiments, the multiple auxiliary parts 3121 are arranged as a whole at intervals from the main connecting bridge 311.

[0046] Combination Figure 3 and Figure 4 In some embodiments, to enable the auxiliary part 3121 to release stress, the auxiliary part 3121 includes a plurality of first connecting bridges 31211 connected in sequence, with adjacent first connecting bridges 31211 arranged at an angle. Along the direction from the display area 10 to the non-display area 20, the plurality of first connecting bridges 31211 overlap. For example, the first connecting bridges 31211 can be U-shaped, and the auxiliary part 3121 can be S-shaped or serpentine.

[0047] When the display area 10 is stretched, the stress is transferred to multiple first connecting bridges 31211. The multiple first connecting bridges 31211 can make small adjustments to their tilt and stretch posture, and slowly dissipate the stress layer by layer, so as to realize the stress release of the auxiliary part 3121 itself, and enable the auxiliary part 3121 to stably share the deformation stress of the main connecting bridge 3111.

[0048] In some embodiments, in order to gradually increase the stiffness of the auxiliary part 3121 in the direction from the display area 10 to the non-display area 20, the Young's modulus of the plurality of first connecting bridges 31211 gradually increases, and / or the thickness of the plurality of first connecting bridges 31211 gradually increases, and / or the spacing between two adjacent first connecting bridges 31211 gradually decreases, and / or the length of the plurality of first connecting bridges 31211 gradually decreases, and / or the width of the plurality of first connecting bridges 31211 gradually increases, and / or the included angle between two adjacent first connecting bridges 31211 gradually increases.

[0049] Combination Figure 3 and Figure 4 In some embodiments, in order to ensure the structural integrity of the main connecting bridge 311, the main connecting bridge 311 includes a plurality of curved portions 3111 and at least one second connecting portion 3112. Along the direction from the display area 10 to the non-display area 20, two adjacent curved portions 3111 are connected by the second connecting portion 3112. One end of the plurality of curved portions 3111 is connected to the display area 10 and the other end is connected to the non-display area 20. The curved portion 3111 includes a plurality of second connecting bridges 31111 connected in sequence. Two adjacent second connecting bridges 31111 are set at an angle. Along the direction from the display area 10 to the non-display area 20, the plurality of second connecting bridges 31111 are stacked. In this design, the number of first connecting bridges 31211 located on the same side as the second connecting portion 3112 is greater than or equal to the number of second connecting bridges 31111, and the length of the first connecting bridges 31211 located on the same side as the second connecting portion 3112 is less than or equal to the length of the second connecting bridges 31111. This ensures that the stiffness of the auxiliary portion 3121 on the same side as the second connecting portion 3112 is greater than or equal to the stiffness of the bending portion 3111, thereby improving the stress-bearing capacity of the auxiliary portion 3121, balancing the overall stress level of the bending portion 3111, significantly improving the overall equivalent stiffness of the transition zone 30, reducing the overall deformation of the transition zone 30 under the same tensile force, effectively constraining the deformation amplitude of the bending portion 3111, fully ensuring the structural integrity of the main connecting bridge 311, and simultaneously mitigating the tension of the signal line 313 laid on the main connecting bridge 311, further ensuring the safety of the signal line 313 and the stability of signal transmission. For example, the second connecting bridge 31111 can be U-shaped, and the bending portion 3111 can be S-shaped or serpentine.

[0050] In some embodiments, when the number of first connecting bridges 31211 located on the same side of the second connecting portion 3112 is greater than the number of second connecting bridges 31111, the length of the first connecting bridge 31211 located on the same side of the second connecting portion 3112 is less than the length of the second connecting bridge 31111. This results in the auxiliary portion 3121 having significantly higher stiffness than the corresponding bending portion 3111. The auxiliary portion 3121 can bear more stress, reducing the stress transmitted to the bending portion 3111 and ensuring the structural integrity of the main connecting bridge 311.

[0051] In some embodiments, the second connecting portion 3112 and the first connecting portion 3122 are integrally formed, so that the second connecting portion 3112 and the first connecting portion 3122 are continuous without interface, and the tensile stress can be smoothly transmitted. Moreover, when the display area 10 is stretched, the bending portion 3111 and the auxiliary portion 3121 deform synchronously without relative slippage, stably maintaining the cooperative parallel force system. Furthermore, the manufacturing efficiency is improved and the manufacturing cost is reduced.

[0052] Combination Figure 5 and Figure 6 In some embodiments, in order to enable the auxiliary part 3121 to release stress, the auxiliary part 3121 includes a plurality of third connecting parts 31212 and a plurality of fine-tuning rings 31213, with two adjacent fine-tuning rings 31213 connected by the third connecting parts 31212.

[0053] When the display area 10 is stretched, the stress is transmitted to the third connecting part 31212 and then to multiple fine-tuning rings 31213. The multiple fine-tuning rings 31213 can make small adjustments to the tilt and stretch posture, and slowly dissipate the stress layer by layer, so as to realize the stress release of the auxiliary part 3121 itself, and enable the auxiliary part 3121 to stably share the deformation stress of the main connecting bridge 3111.

[0054] In some embodiments, in order to gradually increase the stiffness of the auxiliary part 3121 in the direction from the display area 10 to the non-display area 20, the Young's modulus of the plurality of fine-tuning rings 31213 gradually increases, and / or the thickness of the plurality of fine-tuning rings 31213 gradually increases, and / or the perimeter of the plurality of fine-tuning rings 31213 gradually decreases, and / or the area of ​​the through holes of the plurality of fine-tuning rings 31213 gradually decreases, and / or the ring width of the plurality of fine-tuning rings 31213 gradually increases.

[0055] In some embodiments, to ensure the stability of signal transmission, the tension auxiliary connecting bridge 312 is provided with a spare signal line, which is connected in parallel with the signal line 313. When the signal line 313 located on the main connecting bridge 311 is damaged, the spare signal line can transmit the signal. In this case, the number of first connecting bridges 31211 located on the same side of the second connecting portion 3112 is greater than the number of second connecting bridges 31111, and the length of the first connecting bridges 31211 located on the same side of the second connecting portion 3112 is less than the length of the second connecting bridges 31111.

[0056] In some embodiments, to ensure the safety of the signal lines 313, multiple signal lines 313 are respectively arranged on the tension auxiliary connecting bridge 312 and the main connecting bridge 311. Compared to arranging all the signal lines on a single main connecting bridge 311, the tension auxiliary connecting bridge 312 can distribute some of the signal lines 313, providing sufficient space for their arrangement. The signal lines 313 can be arranged in the neutral regions of the tension auxiliary connecting bridge 312 and the main connecting bridge 311. Since the neutral regions are not subjected to stress or deformation, the safety of the signal lines 313 is ensured. Furthermore, the width of the signal lines 313 can be increased, the resistance of the signal lines 313 can be reduced, the reliability of the signal lines 313 can be improved, the strength of the signal lines 313 can be increased, the risk of breakage of the signal lines 313 can be reduced, and the stability of signal transmission can be guaranteed. At this time, the number of first connecting bridges 31211 located on the same side of the second connecting portion 3112 is equal to the number of second connecting bridges 31111, and the length of the first connecting bridges 31211 located on the same side of the second connecting portion 3112 is equal to the length of the second connecting bridges 31111.

[0057] Combination Figure 3 , Figure 4 and Figure 5 In some embodiments, when there are multiple transition structures 31, adjacent transition structures 31 are connected by at least one third connecting bridge 32. The third connecting bridge 32 connects multiple transition structures 31 into an overall stress network, which can realize the mutual adjustment and distribution of stress among the transition structures 31, balance the stress level of the entire transition zone 30, avoid stress overload of a single transition structure 31, and ensure the structural integrity of the main connecting bridge 311. For example, the third connecting bridge 32 can be U-shaped.

[0058] Based on the same inventive concept, this application also proposes a display device that uses the aforementioned display module. The specific structure of the display module is as described in the above embodiments. Since the display module uses all the technical solutions of all the above embodiments, it has at least all the beneficial effects brought about by the technical solutions of the above embodiments, which will not be elaborated here.

[0059] It should be understood that the display device can be an LED (Light Emitting Diode) or OLED (Organic Light-Emitting Diode) display or any product or component with display function, including such display devices as televisions, digital cameras, mobile phones, tablets, etc.

[0060] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0061] In the description of this invention, unless otherwise expressly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature being directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0062] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. In addition, those skilled in the art can combine and integrate the different embodiments or examples described in this specification.

[0063] Although preferred embodiments of this application have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of this application.

[0064] Obviously, those skilled in the art can make various modifications and variations to this application without departing from the spirit and scope of this application. Therefore, if such modifications and variations fall within the scope of the claims of this application and their equivalents, this application also intends to include such modifications and variations.

Claims

1. A display module, characterized in that, It includes a display area, a non-display area, and a transition area located between the display area and the non-display area, the transition area connecting the display area and the non-display area, and the transition area including at least one transition structure, the transition structure including: The main connecting bridge connects to the display area and the non-display area; A stretchable auxiliary connecting bridge is used to connect the display area and the non-display area; Multiple signal lines are at least partially arranged in the main connection bridge; The extension direction of the main connecting bridge and the extension direction of the stretching auxiliary connecting bridge are consistent with the direction from the display area to the non-display area.

2. The display module according to claim 1, characterized in that, The stretching auxiliary connecting bridge includes multiple auxiliary parts and at least one first connecting part. Along the direction from the display area to the non-display area, two adjacent auxiliary parts are connected through the first connecting part. One end of the multiple auxiliary parts is connected to the display area, and the other end is connected to the non-display area.

3. The display module according to claim 2, characterized in that, Along the direction from the display area to the non-display area, the first connecting portion has a first side facing the display area and a second side facing the non-display area, and the number of auxiliary portions connected to the first side is less than the number of auxiliary portions connected to the second side.

4. The display module according to claim 2, characterized in that, The stiffness of the auxiliary part gradually increases along the direction from the display area to the non-display area.

5. The display module according to claim 2, characterized in that, The stiffness of the auxiliary part closer to the non-display area is greater than that of the auxiliary part farther away from the non-display area.

6. The display module according to claim 2, characterized in that, When there are multiple auxiliary parts, the main connecting bridge is located between two adjacent auxiliary parts.

7. The display module according to claim 2, characterized in that, The auxiliary part includes a plurality of first connecting bridges connected in sequence, with two adjacent first connecting bridges arranged at an angle, and the plurality of first connecting bridges overlapping each other along the direction from the display area to the non-display area.

8. The display module according to claim 7, characterized in that, The main connecting bridge includes multiple curved sections and at least one second connecting section. Along the direction from the display area to the non-display area, two adjacent curved sections are connected through the second connecting section. One end of each curved section is connected to the display area, and the other end is connected to the non-display area. Each curved section includes multiple second connecting bridges connected in sequence. Two adjacent second connecting bridges are arranged at an angle. Along the direction from the display area to the non-display area, the multiple second connecting bridges overlap. Wherein, the number of the first connecting bridges located on the same side of the second connecting portion is greater than or equal to the number of the second connecting bridges, and the length of the first connecting bridge located on the same side of the second connecting portion is less than or equal to the length of the second connecting bridge.

9. The display module according to claim 8, characterized in that, The second connecting part is integrally formed with the first connecting part.

10. The display module according to claim 2, characterized in that, The auxiliary part includes multiple third connecting parts and multiple fine-tuning rings, with two adjacent fine-tuning rings connected by the third connecting parts.

11. The display module according to any one of claims 1-10, characterized in that, The tension auxiliary connecting bridge is provided with a spare signal line, which is connected in parallel with the signal line.

12. The display module according to any one of claims 1-10, characterized in that, Multiple signal lines are respectively arranged on the tension auxiliary connecting bridge and the main connecting bridge.

13. The display module according to any one of claims 1-10, characterized in that, When there are multiple transition structures, two adjacent transition structures are connected by at least one third connecting bridge.

14. A display device, characterized in that, Includes the display module as described in any one of claims 1-13.

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