Display module and electronic device

Abstract

The application provides a display module and an electronic device, and relates to the technical field of display. Through a pressure sensor and a pressure adjusting assembly, when it is determined that a pulling force needs to be applied to the display panel based on the related parameters of the extrusion force borne by the display panel collected by the pressure sensor, the pressure adjusting assembly provides a corresponding first pulling force based on the data of the extrusion force collected by the pressure sensor, so that the display panel deformed by extrusion is pulled back to a flat state in the reverse direction. The extrusion force is collected by the pressure sensor, and the extrusion force value borne by the display panel can be more accurately reflected. Then, the first pulling force is obtained based on the extrusion force borne by the display panel. Obviously, at the position of the display panel subjected to extrusion, the pressure adjusting assembly provides the first pulling force in the reverse direction of the extrusion direction, so that the extrusion force is well counteracted in the reverse direction, the forces borne by the two sides of the display panel are balanced, and the display panel is not deformed by the extrusion force.

Description

Technical Field

[0001] This application relates to the field of display technology, and more particularly to a display module and electronic device. Background Technology

[0002] Currently, display technology has permeated all aspects of people's daily lives, and correspondingly, more and more materials and technologies are being used in display modules. With the development of display technology, users have also raised various different usage requirements for display modules. Foldable display modules are foldable display modules made of flexible materials, possessing advantages such as small size and portability, and are being increasingly widely used in various fields, such as rollable display devices, flexible wearable devices, and bendable display modules.

[0003] Typically, the flexible materials used in bendable display modules have a certain bending strength. However, when the bending strength exceeds the bending strength of the flexible material, unevenness or other irregularities may occur at the bending position of the bendable display module.

[0004] In existing technologies, an adhesive layer is applied to the bending display area to improve unevenness. The tensile force of this adhesive layer improves the overall stress distribution across the various film layers, thus mitigating the unevenness. However, this approach does not consider the stress relaxation caused by adhesive layer fatigue after long-term use, which weakens the improvement effect on unevenness. Furthermore, the tensile force in the bending display area is determined based on the elasticity of the adhesive layer, which can lead to insufficient tensile force and incomplete stretching. Summary of the Invention

[0005] In view of the above problems, this application provides a display module and an electronic device. The specific solution is as follows:

[0006] The first aspect of this application provides a display module, the display module comprising: a display panel, the display panel including a bent display area and a flat display area disposed adjacent to the bent display area;

[0007] An adhesive layer located on one side of the backlight surface of the display panel, the adhesive layer including a first adhesive layer corresponding to the bent display area;

[0008] A pressure sensor located between the first adhesive layer and the display panel;

[0009] A pressure regulating component located on the side of the first adhesive layer opposite to the display panel;

[0010] The display module includes a bent state, in which the bent display area is bent on one side of the light-emitting surface of the display panel based on the bending axis;

[0011] In the bent state, the pressure sensor is used to collect relevant parameters of the compressive force exerted on the display panel; the pressure adjustment component determines whether to apply traction force to the display panel based on the relevant parameters;

[0012] When the pressure regulating component determines that a traction force needs to be applied to the display panel based on the relevant parameters, the pressure regulating component provides a first traction force to the bending display area; the relevant parameters include the value of the extrusion force, and the value of the first traction force is determined based on the value of the extrusion force.

[0013] A second aspect of this application provides an electronic device, which includes the display module described above.

[0014] By employing the above technical solution, this application provides a display module and electronic device. Using a pressure sensor and a pressure regulating component, based on parameters related to the compressive force on the display panel collected by the pressure sensor, it is determined whether a traction force needs to be applied to the display panel. The pressure regulating component then provides a corresponding first traction force based on the compressive force data collected by the pressure sensor, thereby causing the deformed display panel to be pulled back to a flat state. The compressive force is obtained through the pressure sensor, which can more accurately reflect the compressive force value on the display panel. The first traction force is then obtained based on the compressive force on the display panel. Clearly, at the location of the compressive force on the display panel, the pressure regulating component provides a first traction force that pulls in the opposite direction to the compressive force, effectively counteracting the compressive force and ensuring balanced force on both sides of the display panel, preventing deformation due to compressive force. Compared to existing technologies, this eliminates problems such as stress relaxation, insufficient tensile force, and incomplete stretching caused by adhesive layer fatigue. Attached Figure Description

[0015] The above and other features, advantages, and aspects of the embodiments of this disclosure will become more apparent from the accompanying drawings and the following detailed description. Throughout the drawings, the same or similar reference numerals denote the same or similar elements. It should be understood that the drawings are schematic, and the originals and elements are not necessarily drawn to scale.

[0016] Figure 1 This is a schematic diagram of the structure of a display panel provided in an embodiment of this application;

[0017] Figure 2 An embodiment provided in this application Figure 1 A schematic diagram of the cross-section along the AA' direction;

[0018] Figure 3 This is a schematic diagram of a display module in a bent state, provided in an embodiment of this application.

[0019] Figure 4This is a schematic diagram of a display module in a flattened state, provided in an embodiment of this application.

[0020] Figure 5 A partial schematic diagram of a pressure regulating component provided in an embodiment of this application;

[0021] Figure 6 This is a schematic diagram of a display module in a bent state and without traction, provided in an embodiment of this application.

[0022] Figure 7 This is a schematic diagram of the structure of a display module in a bent state and under traction, provided in an embodiment of this application.

[0023] Figure 8 This is a schematic diagram of another display module in a flattened state provided in an embodiment of this application;

[0024] Figure 9 This is a partial structural diagram of a display module in a bent and traction state, provided as an embodiment of the present application.

[0025] Figure 10 This is a schematic diagram of the structure of an electronic device provided in an embodiment of this application. Detailed Implementation

[0026] The embodiments of this application are described below with reference to the accompanying drawings. The terminology used in the implementation section of this application is only for explaining specific embodiments and is not intended to limit the application. Those skilled in the art will recognize that, with technological advancements and the emergence of new scenarios, the technical solutions provided in the embodiments of this application are also applicable to similar technical problems.

[0027] It should be noted that the directional terms appearing in this application are based on the relative positional relationships shown in the attached drawings and should not be taken as absolute limitations on this application.

[0028] Based on the background art description, some existing technologies add a gear structure to the bending display area and determine whether to apply gear rotation traction based on the elastic change of the adhesive layer. This technical solution has two problems: firstly, the timing of traction is prone to error; secondly, the traction force is not defined, making it impossible to balance the traction operation based on the compressive force.

[0029] Based on this, this application provides a display module and electronic device, which adds a pressure sensor and a pressure adjustment component to the back of the display panel to help the display panel better restore its flat shape.

[0030] To make the above-mentioned objectives, features and advantages of this application more apparent and understandable, the application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0031] refer to Figure 1 , Figure 1 This is a schematic diagram of the structure of a display panel provided in an embodiment of this application, with reference to... Figure 2 , Figure 2 An embodiment provided in this application Figure 1 A schematic diagram of the cross-section along the AA' direction, for reference. Figure 3 , Figure 3 This is a schematic diagram of a display module in a bent state according to an embodiment of this application. The display module provided in this embodiment includes: a display panel 100, the display panel 100 including a bent display area AA1 and a flat display area AA2 disposed adjacent to the bent display area AA1.

[0032] An adhesive layer 11 is located on the backlight side of the display panel 100, and the adhesive layer 11 includes a first adhesive layer corresponding to the bent display area AA1.

[0033] Pressure sensor 12 located between the first adhesive layer and the display panel 100.

[0034] Pressure regulating component 13 located on the side of the first adhesive layer opposite to the display panel 100.

[0035] The display module includes a bent state, in which the bent display area AA1 is bent toward the light-emitting surface of the display panel 100 based on the bending axis M.

[0036] In the bent state, the pressure sensor 12 is used to collect relevant parameters of the compressive force on the display panel 100; the pressure adjustment component 13 determines whether to apply traction force to the display panel 100 based on the relevant parameters.

[0037] When the pressure regulating component 13 determines that a traction force needs to be applied to the display panel 100 based on the relevant parameters, the pressure regulating component 13 provides a first traction force to the bending display area AA1; the relevant parameters include the value of the extrusion force, and the value of the first traction force is determined based on the value of the extrusion force.

[0038] Specifically, in the embodiments of this application Figure 1 The illustration only takes a rectangular display module in the flattened state as an example. This application does not limit the specific shape of the display module. In some other optional embodiments of this application, the shape of the display module may also be a circle, an ellipse or other shapes. Figure 1The display module includes a display area AA and a non-display area BB surrounding the display area AA. In an optional embodiment of this application, the non-display area BB may only surround a portion of the display area AA. The shape of the non-display area BB is not specifically limited in this embodiment. The non-display area BB may be a closed ring shape surrounding the display area AA, that is, the non-display area BB may completely surround the display area AA; or the non-display area BB may be an open arc shape surrounding the display area AA, that is, the non-display area BB may only surround a portion of the display area AA. The specific implementation can be designed according to actual needs.

[0039] The display panel 100 provided in this application embodiment is a flexible display panel, such as an organic light-emitting display panel. The display principle of an organic light-emitting display panel is that, under the drive of a certain electric field, electrons and holes are injected from the cathode and anode into the electron and hole transport layers, respectively. The electrons and holes migrate through the electron and hole transport layers to the light-emitting layer of the light-emitting device, where they meet to form excitons and excite the light-emitting molecules. When the power is supplied to an appropriate voltage, the anode holes and cathode charges combine in the light-emitting layer to produce light. Depending on the formula, red, green, and blue primary colors are produced, constituting the basic colors and forming the display image. In an optional embodiment of this application, the display area AA of the display panel 100 may include multiple sub-pixels P of different colors, arranged in an array. The specific structure of each sub-pixel can be fabricated by film layers such as the driving circuit layer, planarization layer, anode layer, pixel definition layer, organic light-emitting layer, cathode layer, and thin film encapsulation layer disposed on the substrate of the display panel 100, which will not be described in detail here.

[0040] In the embodiments of this application, as shown below... Figures 1-3 As shown, the display module includes a bent display area AA1 and a flat display area AA2 adjacent to the bent display area AA1. In this embodiment, the description only uses the example of the display area AA including one bent display area AA1 and two flat display areas AA2 located on both sides of the bent display area AA1. In other optional embodiments of this application, the display module may also include two or more bent display areas AA1. Therefore, the number of bent display areas AA1 is not limited in this embodiment. When the number of bent display areas AA1 is greater than or equal to two, at least one bent display area AA1 can be adaptively improved based on the technical solution of this application.

[0041] The display module provided in this application embodiment includes a bent state. Figure 3 The state shown indicates the bending state of the display module. Figure 2 The state shown is the flattened state of the display module. In the bent state, the bent display area AA1 is bent towards the light-emitting surface of the display panel 100 based on the bending axis M.

[0042] In this embodiment, the pressure sensor 12 is located between the first adhesive layer and the display panel 100. Since the position of the first adhesive layer corresponds to the bent display area AA1, it can also be understood that the pressure sensor 12 is located between the first adhesive layer and the bent display area AA1. At this time, the pressure sensor 12 is fixed in position by the first adhesive layer. Since the first adhesive layer has elasticity, the pressure sensor 12 is usually embedded in the first adhesive layer and will not affect the flatness of the first adhesive layer.

[0043] By setting a pressure sensor 12 in the bending display area AA1, the display panel 100 will synchronously transmit the pressure it receives to the pressure sensor 12 during the bending process of the display module. Then, the pressure sensor 12 collects relevant parameters of the pressure received by the display panel 100. For example, the value of the pressure received by the display panel 111 and the direction of the pressure can be collected.

[0044] In other words, by setting a pressure sensor 12 in the bending display area AA1, this application can effectively collect relevant parameters of the compressive force on the display panel 100, which can better reflect the bending state of the display panel 100. Only then can it be pulled more adaptably, avoiding insufficient or excessive traction.

[0045] When the pressure sensor 12 determines that a traction force needs to be applied to the display panel 100 based on the parameters of the compressive force it receives, the pressure regulating component 13 provides a corresponding first traction force based on the compressive force data collected by the pressure sensor 12. This causes the compressed and deformed display panel 100 to be pulled back to a flat state. The compressive force, collected by the pressure sensor 12, accurately reflects the compressive force value received by the display panel 100. The first traction force is then derived from this compressive force. Clearly, at the compressed location of the display panel 100, the pressure regulating component 13 provides a first traction force in the opposite direction of the compressive force, effectively counteracting the compressive force and ensuring balanced force on both sides of the display panel 100, preventing deformation due to compressive force. Compared to existing technologies, this eliminates problems such as stress relaxation, insufficient tensile force, and incomplete stretching caused by adhesive fatigue.

[0046] Furthermore, the cooperation between the pressure sensor 12 and the pressure regulating component 13 can also prevent insufficient or excessive traction.

[0047] In other words, in this embodiment of the application, a pressure sensor 12 and a pressure adjustment component 13 are added to the back of the display panel 100 to help the display panel 100 to better restore its flat shape.

[0048] For example, such as Figure 3 As shown, during the bending process of the display module, the display panel 100 synchronously transmits the compressive force it receives to the pressure sensor 12, which collects the value n1 of the compressive force received by the display panel 100. Based on the compressive force value n1, the pressure regulating component 13 provides a first traction force f1, making f1 = n1, thereby causing the compressed and deformed display panel 100 to be pulled back to a flat state.

[0049] In an optional embodiment of this application, the pressure adjustment component 13 is located in the edge region of the bending display area AA1 near the flat display area AA2.

[0050] Specifically, in this embodiment, the pressure adjustment component 13 is located in the edge area of ​​the bent display area AA1 near the flat display area AA2. When the display module is bent, its position is also a relatively flat surface, which can improve the positional stability of the pressure adjustment component 13 during the bending process and avoid the problem of the pressure adjustment component 13 falling off.

[0051] In an optional embodiment of this application, the material of the adhesive layer 11 is pressure-sensitive adhesive, double-sided adhesive, or optical adhesive.

[0052] like Figure 2 As shown, the adhesive layer 11 further includes a second adhesive layer corresponding to the planar display area AA2.

[0053] The display module further includes a support layer 14 located on the side of the second adhesive layer opposite to the display panel 100.

[0054] Specifically, in this embodiment, the support layer 14 is located in the flat display area AA2. The main function of the support layer 14 is to support the display panel 100 and prevent the display panel 100 from curling. Therefore, the support layer 100 needs to have a certain rigidity. The material of the support layer 100 can be metal, or other materials with rigidity. This embodiment does not limit the material.

[0055] The adhesive layer 11 can be made of adhesive materials such as pressure-sensitive adhesive, double-sided tape, or OCR optical adhesive (Optical ClearResin). In this embodiment, the material of the adhesive layer 11 is not specifically limited, as long as it can enable the display panel 100 to be bonded to other components (such as pressure sensor 12, support layer 14, etc.).

[0056] In an optional embodiment of this application, reference is made to Figure 4 , Figure 4 This is a schematic diagram of a display module in a flattened state, provided in an embodiment of this application. (Refer to...) Figure 5 , Figure 5 This is a partial schematic diagram of a pressure regulating component provided in an embodiment of this application, with reference to... Figure 6 , Figure 6 This is a schematic diagram of a display module in a bent state and without traction, provided in an embodiment of this application. (Refer to...) Figure 7 , Figure 7 This is a schematic diagram of a display module in a bent state and under traction, provided as an embodiment of this application. The pressure regulating component 13 includes: a track assembly and a traction block assembly.

[0057] The width extension direction of the track assembly is the same as the length extension direction of the bending shaft M.

[0058] The first end of the traction block assembly is fixed to the track assembly, and the second end is fixed to the first adhesive layer.

[0059] Specifically, in the embodiments of this application, such as Figure 5 The track assembly shown includes: a traction track 131, a fixing block 132, and track rollers 133; the traction track 131 is arranged around the fixing block 132, and the track rollers 133 are located between the traction track 131 and the fixing block 132; a first end of the traction block assembly is fixed to the traction track 131. The traction block assembly includes a plurality of independent traction blocks 134; a first end of the traction block 134 is fixed to the traction track 131, and a second end is fixed to the first adhesive layer.

[0060] like Figure 4 and Figure 6 As shown, when the display module changes from a flat state to a bent state and the pressure adjustment component 13 is not working, that is, when there is no traction on the display panel 100, the traction track 131 does not rotate, and the position of the traction block 134 changes adaptively with the bending of the display module.

[0061] For example, the first end of the traction block assembly is rotatably connected to a fixed point on the traction track 131. That is, the first end of the traction block 134 is rotatably connected to a fixed point on the traction track 131. This rotatable configuration allows the traction block 134 to adaptively change its position as the display module bends from a flattened state to a bent state, even when the traction track 131 is not rotating.

[0062] like Figure 6 and Figure 7As shown, when the display module changes from a flat state to a bent state and the pressure adjustment component 13 is in working state, that is, when the display panel 100 is being pulled, the traction track 131 rotates clockwise or counterclockwise around the fixed block 132 based on the track roller 133, so as to drive the first end of the traction block 134 to move, thereby achieving the purpose of applying traction force to the display panel 100.

[0063] By setting multiple independent traction blocks 134, the first ends of the multiple independent traction blocks 134 are fixedly connected to different positions of the traction track 131, and the second ends of the multiple independent traction blocks 134 are fixedly connected to different positions of the first adhesive layer. When the traction track 131 rotates clockwise or counterclockwise around the fixed block 132 based on the track roller 133, it can drive the first ends of the multiple traction blocks 134 to move, thereby achieving the purpose of applying traction force to multiple different positions of the display panel 100, so as to help the display panel 100 better restore its flat shape.

[0064] In an optional embodiment of this application, in order to improve the structural stability of the track assembly, the fixing block 132 needs to have a certain rigidity. The material of the fixing block 132 can be a rigid material. For example, the material of the fixing block 132 can be metal, but it can also be other materials with rigidity. This application embodiment does not limit the material.

[0065] In an optional embodiment of this application, such as Figure 4 and Figure 6 As shown, when the display module changes from a flat state to a bent state and the pressure adjustment component 13 is not in operation, that is, when there is no traction on the display panel 100, the traction track 131 does not rotate. In order to avoid the situation where the display panel 100 is provided with a certain traction force due to the change in the position of the traction block 132, resulting in inaccurate parameters of the extrusion force detected by the pressure sensor 12, the material of the traction block 132 is selected as an elastic material in this embodiment of the application, so as to minimize the probability of the above situation, so that the pressure adjustment component 13 can apply a more precise traction force to the display panel 100, so as to help the display panel 100 better restore its flat shape.

[0066] In an optional embodiment of this application, such as Figure 5 As shown, the track assembly also includes a controller IC fixed to the fixing block 132; the relevant parameters include the direction of the compressive force.

[0067] The controller IC is used to control the operating direction of the traction track 131 based on the direction of the compressive force.

[0068] The controller IC is used to control the displacement of the traction track 131 based on the value of the compressive force.

[0069] Specifically, in this embodiment, the controller IC can be integrated on the fixed block 132. For example, a groove design can be made on the fixed block 132 to embed the controller IC in the groove for fixed installation. This design will not affect the surface flatness of the fixed block 132, and obviously will not affect the clockwise or counterclockwise rotation of the traction track 131 around the fixed block 132 based on the track roller 133.

[0070] The pressure sensor 12 collects parameters related to the compressive force acting on the display panel 100, including the direction of the compressive force. Based on the direction of the compressive force, the controller IC can also control the rotation direction of the traction track 131, for example, controlling the traction track 131 to rotate clockwise or counterclockwise to better match the direction of the compressive force. Therefore, by comprehensively considering both the magnitude and direction of the force, traction is applied to the display panel 100 to help it better restore its flat shape.

[0071] For example, during the bending process of the display module, the display panel 100 will synchronously transmit the compressive force it receives to the pressure sensor 12.

[0072] First, the pressure sensor 12 collects the value n1 of the compressive force applied to the display panel 100.

[0073] Secondly, the controller IC issues a displacement command based on the value of the compressive force n1, controlling the rotational displacement S1 of the traction track 131. The rotation of the traction track 131 causes the traction block 134 to shift, and the shift causes traction, providing a first traction force f1 to the display panel 100, making f1=n1, thereby causing the display panel 100, which has been deformed by compression, to be pulled back to a flat state.

[0074] It should be noted that a pressure sensor 12 and a pressure adjustment component 13 are added to the bending display area AA1 of the display panel 100, and a pressure threshold value N = n0 = E × σ = E × (X × E) is set. Where n0 is the pressure value at the initial deformation of the glass, σ is the amount of glass deformation, E is the elastic modulus, and X is a constant related to the structure and material. The controller IC will issue a displacement command based on the compressive force n1 received by the pressure sensor 12 when it is greater than N.

[0075] In an optional embodiment of this application, reference is made to Figure 8 , Figure 8 This is a schematic diagram of another display module in a flattened state provided in an embodiment of this application, referring to... Figure 9 , Figure 9This is a partial structural diagram of a display module in a bent and traction state, provided as an embodiment of this application. The displacement S1 is calculated as follows:

[0076] L1 2 =S1 2 +[L1-(n1 / E)] 2

[0077] Where L1 is the length of the traction block 134 when the display module is in a flattened state. It can also be understood as the length L1 of the traction block 134 when the display panel 100 is not under pressure, the traction block 134 is perpendicular to the display panel 100 and the fixing block 132.

[0078] The display panel 100 will only deform under the pressure of the compressive force. The relationship between the deformation of the display panel 100 and the compressive force is: n1 = E × σ = E × (X × E). The pressure threshold value of the pressure sensor 12 is set to N = n0 (the pressure value when the glass initially deforms). When the compressive force n1 on the display panel 100 is greater than N = n0, it indicates that the display panel 100 has a deformation problem and needs to be pulled in the opposite direction to prevent it from deforming.

[0079] Pressure sensor 12 alarms and transmits the collected extrusion pressure value, feeding it back to the controller IC installed in the fixed block 132. The controller IC determines the current extrusion pressure value n1 and, according to L1... 2 =S1 2 +[L1-(n1 / E)] 2 The corresponding output of the traction track 131 is the displacement S1 of the rotation, which causes the traction block 134 to shift a certain distance, providing the display panel 100 with the first traction force f1, making f1=n1, causing the display panel 100 to be pulled in the opposite direction, so that the display panel 100, which has been squeezed and deformed, is pulled in the opposite direction to return to a flat state.

[0080] It should be noted that this application sets a pressure threshold value during the program setting process. The traction command will only be issued when the value of the compressive force exceeds the set pressure threshold value. At the same time, a displacement threshold value and the correspondence between track displacement and pressure can also be set for the traction track 131 to prevent the situation where the traction force is too large and pulls the display panel in the opposite direction.

[0081] In an optional embodiment of this application, the traction track 131 and traction block 134 are designed such that the traction track 131 can rotate clockwise or counterclockwise. The direction of the main compressive force on the display panel 100 is determined by the pressure sensor 12. Then, the controller IC issues a command for the traction track 131 to rotate clockwise or counterclockwise. The rotation of the traction track 131 drives the traction block 134 to pull in the opposite direction. The traction block 134 is made of a material with high elasticity and flexibility. During the traction process, the elasticity / hardness of the traction block 134 will not cause problems such as the inability to pull the display panel 100 or excessive traction force damaging the display panel 100. At the same time, when traction is not performed, the traction block 134 will not damage the display panel 100.

[0082] In an optional embodiment of this application, when the number of track assemblies is greater than or equal to two, two adjacent track assemblies are fixedly connected by a chain.

[0083] Specifically, in this embodiment, the track components are fixed and connected by chains, which improves the stability of the track components and prevents them from deforming or shifting due to external forces during traction. This improves the structural stability of the track components and thus extends their service life.

[0084] In an optional embodiment of this application, one pressure sensor 12 corresponds to at least two pressure regulating components 13.

[0085] Alternatively, one pressure sensor 12 may correspond to one pressure regulating component 13.

[0086] Specifically, in this embodiment, since the compressive force on different positions of the bent display area AA1 will vary to some extent after the display module changes from a flat state to a bent state, multiple pressure sensors 13 can be set at different positions of the bent display area AA1 in this embodiment. Since the relevant parameters of the compressive force collected by the multiple pressure sensors 12 are different, one pressure sensor 12 can be set to correspond to one pressure adjustment component 13. The parameters collected by each pressure sensor 12 can control the corresponding pressure adjustment component 13, and perform corresponding traction on each position to help the display panel 100 better restore its flat shape.

[0087] Based on the existing display module's thin and light design concept and considering cost, although the pressure on each position of the bent display area AA1 will be more or less different, the pressure on adjacent positions may be very close. Therefore, a pressure sensor 12 can be set to correspond to at least two pressure adjustment components 13. The parameters collected by the pressure sensor 12 can control the corresponding at least two pressure adjustment components 13 to help the display panel 100 better restore its flat shape.

[0088] Based on all the embodiments described above, another embodiment of this application also provides an electronic device, with reference to... Figure 10 , Figure 10 This is a schematic diagram of the structure of an electronic device provided in an embodiment of this application.

[0089] The electronic device 200 includes the display module described in the above embodiments.

[0090] Since the electronic device 200 provided in this application embodiment includes any of the display modules provided in the above embodiments, the electronic device 200 has the same or corresponding technical effects as the display modules provided in the above embodiments. Specifically, the electronic device 200 can be a mobile phone, tablet, or other foldable electronic device.

[0091] The above provides a detailed description of a display module and electronic device provided in this application. Specific examples have been used to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

[0092] It should be noted that the various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the apparatus disclosed in the embodiments, since it corresponds to the method disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to the method section.

[0093] It should also be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that elements inherent to a process, method, article, or apparatus that comprises a list of elements, or elements inherent to such processes, methods, articles, or apparatus, are also included. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0094] The above description of the disclosed embodiments enables those skilled in the art to make or use this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A display module, characterized in that, The display module includes: a display panel, the display panel including a bent display area and a flat display area disposed adjacent to the bent display area; An adhesive layer located on one side of the backlight surface of the display panel, the adhesive layer including a first adhesive layer corresponding to the bent display area; A pressure sensor located between the first adhesive layer and the display panel; A pressure regulating component located on the side of the first adhesive layer opposite to the display panel; The display module includes a bent state, in which the bent display area is bent on one side of the light-emitting surface of the display panel based on the bending axis; In the bent state, the pressure sensor is used to collect relevant parameters of the compressive force exerted on the display panel; the pressure adjustment component determines whether to apply traction force to the display panel based on the relevant parameters; When the pressure regulating component determines that a traction force needs to be applied to the display panel based on the relevant parameters, the pressure regulating component provides a first traction force to the bending display area; the relevant parameters include the value of the extrusion force, and the value of the first traction force is determined based on the value of the extrusion force; The pressure regulating assembly includes: a track assembly and a traction block assembly; The width extension direction of the track assembly is the same as the length extension direction of the bent shaft; The first end of the traction block assembly is fixed to the track assembly, and the second end is fixed to the first adhesive layer; The relevant parameters include the direction of the extrusion force, and the operating direction of the track assembly is controlled based on the direction of the extrusion force; The pressure regulating component provides reverse traction in the direction of the first traction force and the extrusion force.

2. The display module according to claim 1, characterized in that, The track assembly includes: a traction track, a fixing block, and track rollers; The traction track is arranged around the fixed block, and the track roller is located between the traction track and the fixed block; The first end of the traction block assembly is fixed to the traction track.

3. The display module according to claim 2, characterized in that, The traction block assembly includes multiple independent traction blocks; The first end of the traction block is fixed to the traction track, and the second end is fixed to the first adhesive layer.

4. The display module according to claim 2, characterized in that, The track assembly further includes: a controller fixed to the fixing block; The controller is used to control the direction of operation of the traction track based on the direction of the compressive force; The controller is used to control the displacement of the traction track based on the value of the compressive force.

5. The display module according to claim 2, characterized in that, The first end of the traction block assembly is rotatably set to a fixed point on the traction track.

6. The display module according to claim 2, characterized in that, When the number of track assemblies is greater than or equal to two, adjacent track assemblies are fixedly connected by chains.

7. The display module according to claim 2, characterized in that, The fixing block is made of a rigid material.

8. The display module according to claim 3, characterized in that, The traction block is made of an elastic material.

9. The display module according to any one of claims 1-8, characterized in that, One of the pressure sensors corresponds to at least two of the pressure regulating components.

10. The display module according to any one of claims 1-8, characterized in that, One pressure sensor corresponds to one pressure regulating component.

11. The display module according to claim 1, characterized in that, The pressure regulating component is located in the edge area of ​​the bent display area near the flat display area.

12. The display module according to claim 1, characterized in that, The adhesive layer is made of pressure-sensitive adhesive, double-sided adhesive, or optical adhesive.

13. The display module according to claim 1, characterized in that, The adhesive layer further includes: a second adhesive layer corresponding to the planar display area; The display module further includes a support layer located on the side of the second adhesive layer opposite to the display panel.

14. An electronic device, characterized in that, The electronic device includes the display module according to any one of claims 1-13.

Images