Display module and display device

Abstract

The invention discloses a display module and a display device, the display module is provided with a display area and a non-display area, and the display module comprises a supporting function layer located in the display area. Wherein the surfaces of the two sides of the supporting functional layer are configured to be loaded with different voltages, so that a potential difference enabling the thickness of the supporting functional layer to be kept at a preset thickness is formed. According to the technical scheme, the two side surfaces of the supporting functional layer are configured to load different voltages, so that the two side surfaces of the supporting functional layer can form a potential difference, and when the thickness of the display module has a trend of increasing or decreasing, the supporting functional layer can overcome a deformation trend through an acting force generated by the potential difference, so that the thickness of the display module is increased or decreased. The effect that the display module can keep the preset thickness under the action of the potential difference can be achieved, and then the structural stability of the display module can be guaranteed.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of display, in particular to a display module and a display device. BACKGROUND

[0002] With the increasing requirements of consumer electronics on display effect, reliability and thinness, organic light emitting diode (OLED) display technology has become the mainstream of the market due to its self-luminous, high contrast, flexible and other advantages. In the related art, during the manufacturing and application process, the display panel faces the technical problems of panel warping and insufficient impact resistance. SUMMARY

[0003] Embodiments of the present application provide a display module and a display device to at least partially solve the above technical problems.

[0004] To achieve the above purpose, according to a first aspect of the present application, a display module is provided, the display module has a display area and a non-display area, and the display module comprises: a support functional layer located in the display area; wherein the two side surfaces of the support functional layer are configured to load different voltages to form a potential difference that keeps the support functional layer at a predetermined thickness.

[0005] Optionally, the support functional layer comprises a film material with conductive particles, and the two opposite side surfaces of the film material are loaded with different voltages to form the potential difference between the two opposite side surfaces of the film material.

[0006] Optionally, the support functional layer comprises a first conductive layer, a second conductive layer and an intermediate conductive layer, and the intermediate conductive layer is located between the first conductive layer and the second conductive layer. wherein the first conductive layer and the second conductive layer are configured to load different voltages.

[0007] Optionally, at least one of the first conductive layer and the second conductive layer is a metal mesh structure.

[0008] Optionally, the thicknesses of the first conductive layer and the second conductive layer are equal.

[0009] Optionally, the intermediate conductive layer comprises a transparent conductive material.

[0010] Optionally, in a projection plane perpendicular to the thickness direction of the display module, the support functional layer projects on the projection plane to cover the display area and part of the non-display area, and is arranged away from a binding area in the non-display area.

[0011] Optionally, the display module further comprises a display panel, and the support functional layer is arranged in the display panel. The support functional layer is arranged on one side of the display panel.

[0012] Optionally, the display module further comprises a polarizer arranged on a side of the light-emitting layer away from the array substrate, and the support functional layer is arranged between the polarizer and the light-emitting layer.

[0013] Optionally, the display module further comprises a polarizer and an encapsulation layer arranged on a side of the light-emitting layer away from the array substrate, and the encapsulation layer is arranged between the polarizer and the light-emitting layer, and the support functional layer is arranged between the encapsulation layer and the polarizer.

[0014] Optionally, the display module further comprises a display panel, and the support functional layer is arranged in the display panel.

[0015] Optionally, the display panel comprises an array substrate and a light-emitting layer electrically connected to the array substrate, and the support functional layer is arranged on a side of the array substrate away from the light-emitting layer.

[0016] According to a second aspect of the present application, a display device is provided, which comprises the display module as described above.

[0017] The present application has the beneficial effect of providing a display module and a display device capable of improving the stability of a display panel.

[0018] More specifically, some embodiments of the present application can have the following specific beneficial effects: in the display panel of the embodiments of the present application, the display module has a display area and a non-display area, and the display module comprises a support functional layer arranged in the display area. The two side surfaces of the support functional layer are configured to be loaded with different voltages to form a potential difference that keeps the thickness of the support functional layer at a preset thickness. By the above technical solution, the two side surfaces of the support functional layer are configured to be loaded with different voltages, so that the two side surfaces of the support functional layer form a potential difference. When the thickness of the display module has a tendency to increase or decrease, the support functional layer can overcome the deformation tendency by the action force generated by the potential difference. Thus, the display module can maintain the preset thickness under the action of the potential difference, thereby ensuring the structural stability of the display module.

[0019] Other features and advantages of the present application will be described in detail in the following specific embodiments. BRIEF DESCRIPTION OF DRAWINGS

[0020] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings needed to be used in the embodiments description. Obviously, the drawings in the following description only show some of the embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without any creative effort.

[0021] In order to more completely understand the present application and its beneficial effects, the following will be described in conjunction with the drawings, wherein the same reference numerals in the following description represent the same parts.

[0022] Figure 1 is a structural schematic diagram of a support functional layer included in a display module provided in an exemplary embodiment of the present application, the support functional layer being a film material having conductive particles; Figure 2 is a structural schematic diagram of a display module provided in an exemplary embodiment of the present application, the first surface and the second surface of the support functional layer included in the display module being connected to the positive electrode and the negative electrode, respectively; Figure 3 is a structural schematic diagram of a display module provided in an exemplary embodiment of the present application, the support functional layer being provided between the polarizing plate and the light emitting layer of the display module; Figure 4 is a structural schematic diagram of a support functional layer included in a display module provided in an exemplary embodiment of the present application, the support functional layer having a first conductive layer, a second conductive layer, and an intermediate conductive layer; Figure 5 is a structural schematic diagram of a support functional layer included in a display module, the support functional layer having a first conductive layer and a second conductive layer connected to the positive electrode and the negative electrode, respectively; Figure 6 is another structural schematic diagram of a display module provided in an exemplary embodiment of the present application, the support functional layer being provided between the polarizing plate and the light emitting layer of the display module; Figure 7 is a structural schematic diagram of a display module provided in an exemplary embodiment of the present application, the support functional layer being provided between the polarizing plate and the encapsulation layer of the display module; Figure 8 is a structural schematic diagram of a display module provided in an exemplary embodiment of the present application, the support functional layer being provided on the side of the array substrate of the display module away from the light emitting layer.

[0023] Explanation of reference numerals: 100, display module; 110, support functional layer; 1101, first surface; 1102, second surface; 11a, film material; 111, first conductive layer; 112, second conductive layer; 113, intermediate conductive layer; 120, display panel; 121, array substrate; 122, light emitting layer; 1221, light emitting chip; 130, polarizer; 140, encapsulation layer. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative effort belong to the protection scope of the present application.

[0025] In the following detailed description, only certain embodiments of the application are shown and described, by way of illustration. As those skilled in the art would realize, the embodiments described herein are modifiable in various ways without departing from the spirit or scope of the application.

[0026] In the drawings, the thickness of layers, films, plates, regions, etc., can be exaggerated for clarity and a better understanding and description be facilitated. It will be understood that when an element such as a layer, film, region, or substrate is referred to as being "on" another element, it can be directly on the other element or intervening elements can also be present.

[0027] In addition, unless explicitly described to the contrary, the word "comprise" and variations such as "comprises" or "comprising" will be understood to imply the inclusion of stated elements but not the exclusion of other elements. In addition, the word "on" as used in the specification includes above or below as well as on the side of, based on the direction of gravity.

[0028] It will be understood that, although the terms "first", "second", etc. can be used herein to describe various components, these components should not be limited by these terms. These components are only used to distinguish one component from another.

[0029] As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise.

[0030] It will be further understood that the terms "comprises" and / or "comprising", when used in this specification, specify the presence of stated features, integers, steps, or components, but do not preclude the presence or addition of one or more other features, integers, steps, components, or groups thereof.

[0031] It will be understood that when a layer, region or component is referred to as being "formed on" another layer, region or component, it can be directly or indirectly formed on the other layer, region or component. For example, intervening layers, regions or components can be present.

[0032] Based on the technical problems mentioned in the foregoing background art, one of the reasons for the display panel warping problem is the physical and chemical changes experienced by the multi-layer thin film structure of the OLED panel during the preparation process. In the array process, the TFT substrate needs to undergo high-temperature deposition, etching and other links. Due to the difference in the coefficient of thermal expansion (CTE) of each functional film layer (such as the insulating layer, the electrode layer) deposited thereon, accumulated internal stress is generated after the process is completed. The internal stress is released after the panel is packaged, causing the whole to deform, typically exhibiting a "pot cover" warping with the edge raised and the center depressed. Such warping not only affects the alignment accuracy of subsequent module assembly, but also causes micro-cracks or even macro-cracks at the edge of the panel due to stress concentration during cutting, handling and other processes, directly causing yield loss.

[0033] Regarding the insufficient impact resistance problem, it is mainly manifested in the mechanical reliability test (such as drop ball test) of the terminal product and daily use (such as falling). When a local impact force acts on the surface of the display panel, the impact energy will be transmitted to the TFT array and light-emitting unit below through the stacked structure of the polarizer (POL), the encapsulation glass (Encap) and the like. The laminated structure of the existing display module lacks an effective dynamic energy dissipation mechanism, so that the huge pressure at the impact point directly acts on the fragile pixel circuit, which easily leads to damage of the cathode / anode line, film peeling or failure of the light-emitting material, showing permanent bright spots, dark spots or display color difference, seriously affecting the user experience.

[0034] Therefore, a display module 100 and a display device with stable structure are provided.

[0035] According to a first aspect of the present application, a display module 100 is provided, which has a display area and a non-display area, referring to Figure 1 The display module 100 comprises a support functional layer 110. The support functional layer 110 in the embodiment of the present application is located in the display area.

[0036] The two side surfaces of the support functional layer 110 are configured to load different voltages to form a potential difference that keeps the support functional layer 110 at a predetermined thickness.

[0037] It should be noted that the two side surfaces of the support functional layer 110 are configured to load different voltages, which means that one side surface of the support functional layer 110 loads a positive voltage and the other side surface loads a negative voltage, for example, the same power supply is loaded, and the positive and negative poles of the voltage are connected to the two side surfaces of the support functional layer 110.

[0038] It can be understood that the potential difference of the support functional layer 110 in the embodiment of the present application can be adjusted by adjusting the size and polarity of the loading voltage, so as to adjust the potential difference of the support function and dynamically control the thickness of the support functional layer 110, thereby offsetting the deformation caused by process residual stress or external impact, and ensuring that the thickness of the display module 100 remains at a preset thickness.

[0039] The principle of thickness maintenance in the embodiment of the present application is based on that the support functional layer 110 is a functional layer of a capacitive sensor, which has a charge Q.

[0040] In one example, when the display module 100 is warped, the thickness of the center position of the support functional layer 110 will increase during the warping process, that is, the thickness of the center of the support functional layer 110 is greater than the original thickness d, which causes the thickness d of the middle of the support functional layer 110 to have a trend of increasing, according to the capacitance formula:

[0041] And according to the capacitance formula C=Q / U.

[0042] In the above two formulas, C is the capacitance (unit F), ε is the dielectric constant (permittivity), S is the area of the two side surfaces of the support functional layer 110, π is the circular constant, k is the electrostatic force constant, and d is the distance between the two side surfaces of the support functional layer 110, that is, the thickness of the support functional layer 110.

[0043] In this example, the thickness of the support functional layer 110 changes, the area S above and below remains unchanged, the distance d between the two side surfaces of the support functional layer 110 increases, and the capacitance C decreases, and according to the capacitance formula C=Q / U. Based on the fact that the support functional layer 110 is connected to a power supply, the charge Q remains constant, which will cause the potential difference U to have a trend of increasing. In order to reverse this trend, the potential difference can be increased (i.e. the voltage between the plane A and the plane B is increased, for example, the power supply voltage can be controlled to increase), to resist the trend of the potential difference U rising, thereby inhibiting the trend of the capacitance C decreasing. In this way, when the display panel 120 of the display module 100 is warped and the support functional layer 110 is also warped, the support functional layer 110 provides a stretching force to the display panel 120, so that the center area of the display panel 120 is restored to be flush with the edge area of the display panel 120, thereby maintaining the distance and the thickness d before warping constant.

[0044] In another example, when the display module 100 is partially recessed to cause the thickness of the support functional layer 110 to decrease, for example, after the display module 100 is impacted by external force, the thickness d of the support functional layer 110 has a tendency to instantaneously decrease. There are two specific stages here. In the first stage, the thickness d of the support functional layer 110 instantaneously decreases, causing C to instantaneously increase. Since the charge Q cannot change instantaneously due to the inductive reactance of the circuit, C has a tendency to increase, and Q is considered to remain unchanged. According to C = Q / U, U = Q / C, C increases and Q remains unchanged, causing the potential difference U between the two plates to instantaneously decrease. Then in the second stage, in order to suppress the increase of C, after the decrease of the potential difference U, the potential difference (i.e., the voltage between the plane A and the plane B) can be selected to increase, for example, by increasing the power supply voltage to control, so as to increase the potential difference U between the two plates to the preset value or higher. Therefore, in order to increase U, the power supply needs to supplement the charge Q to the capacitor, that is, to increase U, and U is proportional to Q. In this way, U and C increase synchronously, which suppresses the increase of C, and thus the thickness d returns to the original thickness, thereby maintaining the stability of the thickness of the support functional layer 110.

[0045] In the embodiments of the present application, by adjusting the voltage between the two sides of the support functional layer 110, the potential difference U and the charge Q of the support functional layer 110 can be dynamically adjusted, so as to control the thickness d to remain stable under external deformation interference. The change of the capacitance feedback by the capacitance sensor is used to adjust the potential difference between the two sides, so as to actively compensate for the deformation of the display module 100.

[0046] It should be noted that the thickness of the display module 100 in the embodiments of the present application is maintained at a preset thickness, which means that the thickness of the display module 100 instantaneously returns to the original thickness after a certain deformation, which has a process of deformation and recovery. This process is in a relatively short period of time.

[0047] By the above technical solution, the two sides of the support functional layer 110 are configured to be loaded with different voltages, so that the two sides of the support functional layer 110 form a potential difference. When the thickness of the display module 100 has a tendency to increase or decrease, the support functional layer 110 can overcome the deformation tendency by the action force generated by the potential difference. In this way, the display module 100 can maintain the preset thickness under the action of the potential difference, thereby ensuring the structural stability of the display module 100.

[0048] For example, the two sides of the support functional layer 110 are defined as a first surface 1101 and a second surface 1102, respectively, and the first surface 1101 and the second surface 1102 are loaded with different voltages, so that the support functional layer 110 forms a certain potential difference.

[0049] In some embodiments, please continue to refer to Figure 1 and refer to Figure 2 The support functional layer 110 includes a film material 11a with conductive particles, and the opposite surfaces of the film material 11a are loaded with different voltages to form a potential difference between the opposite surfaces of the film material 11a.

[0050] By setting the support functional layer 110 as a film material 11a with conductive particles, the conductive particles are uniformly distributed inside the film material 11a, and the opposite surfaces of the film material 11a are loaded with different voltages, so that a potential difference can be formed between the opposite surfaces of the film material 11a, and the conductive particles can move from a high potential to a low potential inside the film material 11a, thereby forming a charge migration path inside the film material 11a, achieving more uniform recovery stress during deformation, and avoiding local stress concentration.

[0051] And the film material 11a is an integral structure, which can simplify the overall structure of the support functional layer 110 and is not prone to interlayer peeling. For example, the film material 11a can be silver nanowires, so that the support functional layer 110 can be a transparent support functional layer 110. As a more specific example, the film material 11a can be provided in a mesh structure. In this example, the two side surfaces of the film material 11a serve as the first surface 1101 and the second surface 1102.

[0052] In some embodiments, please refer to Figure 4 and Figure 5 The support functional layer 110 includes a first conductive layer 111, a second conductive layer 112, and an intermediate conductive layer 113 between the first conductive layer 111 and the second conductive layer 112. Among them, the first conductive layer 111 and the second conductive layer 112 are configured to be loaded with different voltages.

[0053] By including the first conductive layer 111, the second conductive layer 112, and the intermediate conductive layer 113 in the support functional layer 110, a capacitor with a layer structure is formed, and the first conductive layer 111 and the second conductive layer 112 are configured to be loaded with different voltages to form a potential difference between the first conductive layer 111 and the second conductive layer 112. With such a solution, when impact or warping causes the thickness of the display module 100 to change, the capacitance C is suppressed from changing by quickly adjusting the voltage, so that the display module 100 can remain at the original preset thickness.

[0054] In some embodiments, at least one of the first conductive layer 111 and the second conductive layer 112 is a metal mesh structure.

[0055] By setting at least one of the first conductive layer 111 and the second conductive layer 112 as a metal mesh structure, light can be allowed to pass through the gaps of the mesh, so that the support functional layer 110 has good conductivity and certain transparency, thereby reducing the impact on the brightness of the display module 100.

[0056] Exemplarily, the first conductive layer 111 and the second conductive layer 112 can be both set as a metal mesh structure, which is a mesh film made of very fine metal (such as silver, copper) wires in this example. On the one hand, the first conductive layer 111 and the second conductive layer 112 in this example both have good conductivity; on the other hand, based on the fact that the wires are very fine and the gaps of the mesh structure are large, high transparency can be maintained; on the other hand, the mesh structure can more effectively release stress.

[0057] In some embodiments, please continue to refer to Figure 4 and Figure 5 The thickness of the first conductive layer 111 and the second conductive layer 112 is equal. With such a technical solution, the thickness of the first conductive layer 111 and the second conductive layer 112 is equal, so that the first conductive layer 111 and the second conductive layer 112 can maintain the same electrical conditions (such as voltage, current, resistance), and an uniform and symmetrically distributed electric field can be formed inside the support functional layer 110, which is convenient for adjustment.

[0058] As a more specific solution, please continue to refer to Figure 4 and Figure 5 The thickness of the first conductive layer 111 and the second conductive layer 112 in the embodiments of the present application is equal, and the thickness of the first conductive layer 111 and the second conductive layer 112 is less than the thickness of the intermediate conductive layer 113.

[0059] In some embodiments, the intermediate conductive layer 113 comprises a transparent conductive material. With such a technical solution, on the basis that the first conductive layer 111 and the second conductive layer 112 are mesh structures, the intermediate conductive layer 113 comprises a transparent conductive material, which can make the transparency of the support functional layer 110 higher, so as to further reduce the shielding of light transmission. Exemplarily, the intermediate conductive layer 113 can be a transparent conductive adhesive.

[0060] In some embodiments, in a projection plane perpendicular to the thickness direction of the display module 100, the support functional layer 110 projects on the projection plane to cover the display area and avoid the binding area in the non-display area.

[0061] In this embodiment, since the bonding area has circuit board connection terminals, the support functional layer 110 covers the display area and avoids the bonding area in the non-display area. This avoids the problem of connection terminal breakage and short circuit during adjustment, and improves the reliability and service life of the display module 100.

[0062] In some embodiments, please refer to Figure 3 The display module 100 further includes a display panel 120, which includes an array substrate 121 and a light-emitting layer 122 electrically connected to the array substrate 121; wherein, the support functional layer 110 is disposed on one side of the display panel 120. In this embodiment, by disposing the support functional layer 110 on one side of the display panel 120, the support functional layer 110 in this example is located above the display panel 120. With this technical solution, the support functional layer 110 in this example acts as an additional structure independent of the array substrate 121, and is attached to the surface of the display panel 120 after the display panel 120 manufacturing process is completed, and can withstand and buffer external impact forces.

[0063] When the display panel 120 tilts, the support functional layer 110 can apply a tensile force to the display panel 120. In this way, the overall structural stability of the display module 100 is ensured.

[0064] For example, the display panel 120, which includes the array substrate 121 and the light-emitting layer 122 connected to the array substrate 121, can be an organic light-emitting diode display panel 120 (OLED display panel 120). In this example, the light-emitting layer 122 is a light-emitting layer 122 having multiple light-emitting chips 1221.

[0065] Please refer to Figure 5 Taking the support functional layer 110, which includes a first conductive layer 111, a second conductive layer 112, and an intermediate conductive layer 113, as an example, the upper surface of the first conductive layer 111 is used as the first surface 1101 of the support functional layer 110, and the lower surface of the second conductive layer 112 is used as the second surface 1102 of the support functional layer 110. The upper surface of the first conductive layer 111 is connected to the positive electrode, and the lower surface of the second conductive layer 112 is connected to the negative electrode.

[0066] In some embodiments, please refer to Figure 6 The display module 100 further includes a polarizer 130 located on the side of the light-emitting layer 122 away from the array substrate 121; wherein the support functional layer 110 is provided between the light-emitting layer 122 and the polarizer 130.

[0067] By providing the supporting functional layer 110 between the light-emitting layer 122 and the polarizer 130, on the one hand, when the display module 100 is subjected to an impact force from above, the supporting functional layer 110 can act as a buffer, preventing damage to the light-emitting layer 122 and improving the impact resistance reliability of the display module 100. On the other hand, the supporting functional layer 110 is located between the polarizer 130 and the light-emitting layer 122. The polarizer 130, located above, has absorption and polarization characteristics, which can effectively "hide" the supporting functional layer 110 (making it invisible to the naked eye). Therefore, when the supporting functional layer 110 is made of an opaque metal mesh conductive material to obtain optimal electrical performance, as long as its linewidth is fine enough, the polarizer 130 can eliminate the adverse effects of the supporting functional layer 110 on the display effect (such as moiré patterns and glare), providing a wider range of material choices for the supporting functional layer 110, not limited to transparent materials.

[0068] It should be noted that when the supporting functional layer 110 is a film material 11a, the light-emitting layer 122, the polarizer 130, and the film material 11a are formed by lamination.

[0069] In some embodiments, please refer to Figure 7 The display module 100 further includes a polarizer 130 and an encapsulation layer 140 located on the side of the light-emitting layer 122 away from the array substrate 121, with the encapsulation layer 140 located between the polarizer 130 and the light-emitting layer 122; wherein, the support functional layer 110 is provided between the encapsulation layer 140 and the polarizer 130.

[0070] Regarding the encapsulation layer 140, it refers to the structure that protects the light-emitting layer 122 of the display panel 120 from corrosion, such as encapsulation glass.

[0071] By providing the support functional layer 110 between the encapsulation layer 140 and the polarizer 130, when the display area of ​​the display module 100 is subjected to an external impact, the support functional layer 110 can prevent damage to the encapsulation layer 140 and the light-emitting layer 122 below, thus playing a role in buffering and supporting.

[0072] Regarding the support functional layer 110 being located below the polarizer 130, the polarizer 130 possesses absorption and polarization properties, effectively "hiding" the support functional layer 110 (making it invisible to the naked eye). Therefore, when an opaque conductive material with a metal mesh is chosen for the support functional layer 110 to achieve optimal electrical performance, as long as its linewidth is sufficiently fine, the polarizer 130 can eliminate the adverse effects of the support functional layer 110 on the display effect (such as moiré patterns and glare), providing a wider range of material options for the support functional layer 110, not limited to transparent materials.

[0073] In some other examples, the support functional layer 110 included in the display module 100 is disposed within the display panel 120. This means that the support functional layer 110 is integrated into the display panel 120 during the manufacturing process, becoming a component of the internal structure of the display panel 120, rather than an externally attached independent component. This approach achieves integration of the support functional layer 110 with the display panel 120, which can suppress warping and impact forces from within the display panel 120, improving the overall structural stability and reliability of the display module 100.

[0074] In some embodiments, please refer to Figure 8 The display panel 120 includes an array substrate 121 and a light-emitting layer 122 electrically connected to the array substrate 121; wherein, the support functional layer 110 is provided on the side of the array substrate 121 away from the light-emitting layer 122.

[0075] By adopting this technical solution, on the one hand, the supporting functional layer 110 can be positioned outside the light-emitting path of the display panel 120. In this case, the supporting functional layer 110 is not limited to a transparent structure, meaning there is no need to consider the technical issue of light efficiency. On the other hand, the supporting functional layer 110, located below the array substrate 121, can provide support for the display panel 120, suppress warping of the display panel 120, and improve its impact resistance.

[0076] It should be noted that when the supporting functional layer 110 is located on the side of the array substrate 121 away from the light-emitting layer 122, the polarities of the upper and lower surfaces of the supporting functional layer 110 are opposite to those when the supporting functional layer 110 is located on the side of the light-emitting layer 122 away from the array substrate 121. For example, when the center of the display module 100 is recessed, a downward pulling force is required when the supporting functional layer 110 is located on the side of the light-emitting layer 122 away from the array substrate 121, while an upward pushing force is generated when the supporting functional layer 110 is located on the side of the array substrate 121 away from the light-emitting layer 122. Both the supporting functional layer 110 with opposite polarity connection located on one side of the display panel 120 and located on the display panel 120 itself can generate forces in the correct direction.

[0077] Please continue to refer to this. Figure 8Taking the support functional layer 110, which includes a first conductive layer 111, a second conductive layer 112, and an intermediate conductive layer 113, as an example, in this example, the upper surface of the first conductive layer 111 is used as the first surface 1101 of the support functional layer 110, and the lower surface of the second conductive layer 112 is used as the second surface 1102 of the support functional layer 110. The upper surface of the first conductive layer 111 is connected to the negative electrode, and the lower surface of the second conductive layer 112 is connected to the positive electrode.

[0078] In summary, the display module 100 in this embodiment of the application has a support functional layer 110 in the display area. By forming a potential difference between the two surfaces of the support functional layer 110, a rebound force, such as a tensile force or a supporting force, can be generated to maintain the display module 100 at a preset thickness. This ensures the structural stability of the display module 100.

[0079] According to a second aspect of this application, a display device is provided, the display device including the display module 100 as described above. The display device in the embodiments of this application has the display module 100 described above, and therefore has all the beneficial effects of the display module 100 described above, which will not be elaborated here.

[0080] As a more specific technical solution, the display device further includes a controllable voltage source electrically connected to the support functional layer 110 to form a potential difference between opposite surfaces of the support functional layer 110, and the controllable power source is configured to adjust the potential difference.

[0081] Using this technical solution, the controllable voltage source can dynamically adjust the output voltage in real time, thereby controlling the potential difference between the two surfaces of the supporting functional layer 110. For example, this controllable voltage source can be integrated into the touch driver chip and display driver chip of the display device.

[0082] The display device in the embodiments of this application can be a terminal, including but not limited to mobile phones, computers, and displays.

[0083] In the description of this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0084] In the above embodiments, the descriptions of each embodiment have different focuses. For parts not described in detail in a certain embodiment, please refer to the relevant descriptions in other embodiments.

[0085] The embodiments, implementation methods, and related technical features of this application can be combined and substituted for each other without conflict.

[0086] The above are merely preferred embodiments of this application and are not intended to limit this application in any way. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of this application without departing from the scope of the technical solution of this application shall still fall within the scope of the technical solution of this application.

Claims

1. A display module, characterized in that, The display module has a display area and a non-display area, and the display module includes: The supporting functional layer is located in the display area; The two sides of the supporting functional layer are configured to be loaded with different voltages to form a potential difference that maintains the supporting functional layer at a preset thickness.

2. The display module according to claim 1, characterized in that, The supporting functional layer includes a membrane material with conductive particles, and different voltages are applied to the opposite two surfaces of the membrane material to form the potential difference between the opposite two surfaces of the membrane material.

3. The display module according to claim 1, characterized in that, The supporting functional layer includes a first conductive layer, a second conductive layer and an intermediate conductive layer, wherein the intermediate conductive layer is located between the first conductive layer and the second conductive layer; The first conductive layer and the second conductive layer are configured to be loaded with different voltages.

4. The display module according to claim 3, characterized in that, At least one of the first conductive layer and the second conductive layer is a metal mesh structure; And / or, the thicknesses of the first conductive layer and the second conductive layer are equal; And / or, the intermediate conductive layer comprises a transparent conductive material.

5. The display module according to claim 1, characterized in that, On a projection plane perpendicular to the thickness direction of the display module, the projection of the support functional layer on the projection plane covers the display area and part of the non-display area, and avoids the binding area in the non-display area.

6. The display module according to any one of claims 1 to 5, characterized in that, The display module further includes a display panel, which includes an array substrate and a light-emitting layer electrically connected to the array substrate; The supporting functional layer is located on one side of the display panel.

7. The display module according to claim 6, characterized in that, The display module further includes a polarizer located on the side of the light-emitting layer away from the array substrate; wherein, the supporting functional layer is provided between the light-emitting layer and the polarizer; Alternatively, the display module may further include a polarizer and an encapsulation layer located on the side of the light-emitting layer away from the array substrate, with the encapsulation layer located between the polarizer and the light-emitting layer; wherein the support functional layer is provided between the encapsulation layer and the polarizer.

8. The display module according to any one of claims 1 to 5, characterized in that, The display module also includes a display panel, and the supporting functional layer is disposed within the display panel.

9. The display module according to claim 8, characterized in that, The display panel includes an array substrate and a light-emitting layer electrically connected to the array substrate; wherein the support functional layer is provided on the side of the array substrate away from the light-emitting layer.

10. A display device, characterized in that, The display device includes a display module as described in any one of claims 1 to 9.

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