Display module and intelligent terminal

Abstract

The application provides a display module and a smart terminal. The display module comprises a display screen, a first supporting film and a second supporting film arranged below the display screen, the display screen is connected with the first supporting film, the first supporting film is connected with the second supporting film, and a metal supporting sheet is arranged in the first supporting film and / or the second supporting film. The display module can effectively prevent deformation and top printing, and has strong impact resistance.

Description

Technical Field

[0001] This application relates to the field of display technology, specifically to a display module and a smart terminal. Background Technology

[0002] To support and protect the display screen, a flexible first support layer and a deformation-resistant second support layer are provided on the back of the display screen. The first support layer is made of a flexible film material of polyimide or PET; the second support layer is made of foam and copper foil composite.

[0003] In conceiving and implementing this application, the inventor discovered at least the following problems: To ensure sufficient impact resistance of the second support film, the thickness of the foam needs to be increased, resulting in a significant increase in the thickness of the display device, which is detrimental to the thinning and lightening of the display. Moreover, the copper foil structure of the second support layer has low strength and poor anti-molding effect, with top printing visible on the front.

[0004] The preceding description is intended to provide general background information and does not necessarily constitute prior art. Utility Model Content

[0005] To address the aforementioned technical issues, this application provides a display module that effectively prevents deformation and top marks, and has strong impact resistance.

[0006] To solve the above-mentioned technical problems, this application provides a display module, including a display screen and a first support film and a second support film disposed below the display screen. The display screen is connected to the first support film, the first support film is connected to the second support film, and a metal support sheet is disposed in the first support film and / or the second support film.

[0007] Optionally, the first support film is a flexible film; the second support film includes a second adhesive layer and the metal support sheet, wherein the second adhesive layer is connected between the first support film and the metal support sheet.

[0008] Optionally, the second adhesive layer is a buffer energy-absorbing adhesive or a pressure-sensitive adhesive; and / or, The energy-absorbing buffer adhesive is one of the following: silicone-based adhesive, non-Newtonian fluid adhesive, or biomimetic energy-absorbing material.

[0009] Optionally, when the second adhesive layer is a buffer energy-absorbing adhesive, the metal support sheet has a first thickness; When the second adhesive layer is a pressure-sensitive adhesive, the metal support sheet has a second thickness, which is greater than the first thickness.

[0010] Optionally, the first support film includes a first adhesive layer and the metal support sheet, wherein the first adhesive layer is connected between the display screen and the metal support sheet; The second support film includes a second adhesive layer and the metal support sheet, wherein the second adhesive layer is connected between the two metal support sheets.

[0011] Optionally, the first adhesive layer is a pressure-sensitive adhesive, and the second adhesive layer is a buffer energy-absorbing adhesive.

[0012] Optionally, the display screen is a flexible screen; the display module further includes an optical film, an optical adhesive, and a flexible cover plate, wherein the optical film is disposed on the light-emitting side of the display screen, and the optical adhesive connects the optical film and the flexible cover plate.

[0013] Optionally, the first support film includes a first adhesive layer and the metal support sheet, wherein the first adhesive layer is connected between the display screen and the metal support sheet; The second support film includes a second adhesive layer and a metal composite structure layer, wherein the second adhesive layer is connected between the metal support sheet and the metal composite structure layer.

[0014] Optionally, the first support membrane is a flexible membrane; The second support film includes a metal composite structure layer, a second adhesive layer, the metal support sheet, and a third adhesive layer stacked sequentially, wherein the third adhesive layer is connected between the metal support sheet and the first support film.

[0015] This application also provides a smart terminal, including the display module of any of the above.

[0016] The first and / or second support films of the display module of this application are provided with metal support sheets. Since the Young's modulus of the metal support sheets is large, the structural strength of the first and / or second support films is large, which can effectively prevent deformation and top marks, and has strong impact resistance. Attached Figure Description

[0017] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application. To more clearly illustrate the technical solutions of the embodiments of this application, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, those skilled in the art can obtain other drawings based on these drawings without any creative effort.

[0018] Figure 1 A schematic diagram of the hardware structure of a smart terminal to implement the various embodiments of this application; Figure 2 A communication network system architecture diagram provided for an embodiment of this application; Figure 3 This is a partial cross-sectional view of the display module according to the first embodiment of this application; Figure 4 This is a partial cross-sectional view of the display module according to the second embodiment of this application; Figure 5 This is a partial cross-sectional view of the display module according to the third embodiment of this application; Figure 6 This is a partial cross-sectional view of the display module according to the fourth embodiment of this application; Figure 7 This is a partial cross-sectional view of the display module according to the fifth embodiment of this application.

[0019] The realization of the objectives, functional features, and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. The accompanying drawings have illustrated specific embodiments of this application, which will be described in more detail below. These drawings and textual descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concepts of this application to those skilled in the art through reference to specific embodiments. Detailed Implementation

[0020] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0021] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. 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 that element. Furthermore, components, features, and elements with the same names in different embodiments of this application may have the same meaning or different meanings, the specific meaning of which must be determined by its interpretation in that specific embodiment or further in conjunction with the context of that specific embodiment.

[0022] It should be understood that although the terms first, second, third, etc., may be used herein to describe various information, such information should not be limited to these terms. These terms are used only to distinguish information of the same type from one another. For example, without departing from the scope of this document, first information may also be referred to as second information, and similarly, second information may also be referred to as first information. Depending on the context, the word "if," as used herein, may be interpreted as "when," "when," or "in response to determination." Furthermore, as used herein, the singular forms "a," "an," and "the" are intended to also include the plural forms unless the context indicates otherwise. It should be further understood that the terms "comprising," "including," indicate the presence of the stated feature, step, operation, element, component, item, kind, and / or group, but do not exclude the presence, occurrence, or addition of one or more other features, steps, operations, elements, components, items, kinds, and / or groups. The terms "or," "and / or," "including at least one of the following," etc., as used in this application, may be interpreted as inclusive, or mean any one or any combination thereof. For example, "including at least one of the following: A, B, C" means "any one of the following: A; B; C; A and B; A and C; B and C; A and B and C." Similarly, "A, B, or C" or "A, B, and / or C" means "any one of the following: A; B; C; A and B; A and C; B and C; A and B and C." Exceptions to this definition only occur when the combination of elements, functions, steps, or operations is inherently mutually exclusive in some way.

[0023] It should be understood that although the steps in the flowcharts of this application's embodiments are shown sequentially according to the arrows, these steps are not necessarily executed in the order indicated by the arrows. Unless explicitly stated herein, there is no strict order restriction on the execution of these steps, and they can be executed in other orders. Moreover, at least some of the steps in the figures may include multiple sub-steps or multiple stages. These sub-steps or stages are not necessarily completed at the same time, but can be executed at different times, and their execution order is not necessarily sequential, but can be performed alternately or in turn with other steps or at least a portion of the sub-steps or stages of other steps.

[0024] Depending on the context, the words “if” or “suppose” as used here can be interpreted as “when” or “in response to determination” or “in response to detection.” Similarly, depending on the context, the phrases “if determination” or “if detection (of the stated condition or event)” can be interpreted as “when determination” or “in response to determination” or “when detection (of the stated condition or event)” or “in response to detection (of the stated condition or event).”

[0025] It should be noted that step designations such as S10 and S20 are used in this document for the purpose of more clearly and concisely describing the corresponding content, and do not constitute a substantial limitation on the order. In specific implementation, those skilled in the art may execute S20 first and then S10, etc., but these should all be within the protection scope of this application.

[0026] It should be understood that the specific embodiments described herein are merely illustrative of this application and are not intended to limit this application.

[0027] In the following description, the use of suffixes such as "module," "part," or "unit" to denote elements is solely for the purpose of illustrative purposes and has no specific meaning in itself. Therefore, "module," "part," or "unit" may be used interchangeably.

[0028] Smart terminals can be implemented in various forms. For example, the smart terminals described in this application may include smart terminals such as mobile phones, tablets, laptops, handheld computers, personal digital assistants (PDAs), portable media players (PMPs), navigation devices, wearable devices, smart bracelets, pedometers, etc., as well as fixed terminals such as digital TVs and desktop computers.

[0029] The following description will use a mobile terminal as an example. Those skilled in the art will understand that, apart from elements specifically designed for mobile purposes, the construction according to the embodiments of this application can also be applied to fixed-type terminals.

[0030] Please see Figure 1 This is a schematic diagram of the hardware structure of a mobile terminal implementing various embodiments of this application. The mobile terminal 100 may include: an RF (Radio Frequency) unit 101, a WiFi module 102, an audio output unit 103, an A / V (Audio / Video) input unit 104, a sensor 105, a display unit 106, a user input unit 107, an interface unit 108, a memory 109, a processor 110, and a power supply 111, etc. Those skilled in the art will understand that... Figure 1 The mobile terminal structure shown does not constitute a limitation on the mobile terminal. The mobile terminal may include more or fewer components than shown, or combine certain components, or have different component arrangements.

[0031] The following is combined with Figure 1 A detailed introduction to each component of the mobile terminal: The radio frequency unit 101 can be used for receiving and transmitting signals during information transmission or calls. Specifically, it receives downlink information from the base station and processes it with the processor 110; additionally, it transmits uplink data to the base station. Typically, the radio frequency unit 101 includes, but is not limited to, an antenna, at least one amplifier, a transceiver, a coupler, a low-noise amplifier, and a duplexer. Furthermore, the radio frequency unit 101 can also communicate wirelessly with networks and other devices. The aforementioned wireless communications may use any communication standard or protocol, including but not limited to GSM (Global System of Mobile communication), GPRS (General Packet Radio Service), CDMA2000 (Code Division Multiple Access 2000), WCDMA (Wideband Code Division Multiple Access), TD-SCDMA (Time Division-Synchronous Code Division Multiple Access), FDD-LTE (Frequency Division Duplexing-Long Term Evolution), TDD-LTE (Time Division Duplexing-Long Term Evolution), and 5G, etc.

[0032] WiFi is a short-range wireless transmission technology. Mobile terminals, through the WiFi module 102, can help users send and receive emails, browse web pages, and access streaming media, providing users with wireless broadband internet access. Although Figure 1 The WiFi module 102 is shown, but it is understood that it is not a necessary component of the mobile terminal and can be omitted as needed without changing the essence of the utility model.

[0033] The audio output unit 103 can convert audio data received by the radio frequency unit 101 or the WiFi module 102 or stored in the memory 109 into audio signals and output them as sound when the mobile terminal 100 is in call signal receiving mode, call mode, recording mode, voice recognition mode, broadcast receiving mode, etc. Furthermore, the audio output unit 103 can also provide audio output related to specific functions performed by the mobile terminal 100 (e.g., call signal receiving sound, message receiving sound, etc.). The audio output unit 103 may include a speaker, a buzzer, etc.

[0034] The A / V input unit 104 is used to receive audio or video signals. The A / V input unit 104 may include a graphics processing unit (GPU) 1041 and a microphone 1042. The GPU 1041 processes image data of still images or videos acquired by an image capture device (such as a camera) in video capture mode or image capture mode. The processed image frames can be displayed on the display unit 106. The image frames processed by the GPU 1041 can be stored in the memory 109 (or other storage media) or transmitted via the radio frequency unit 101 or the WiFi module 102. The microphone 1042 can receive sound (audio data) in operating modes such as telephone call mode, recording mode, and voice recognition mode, and can process such sound into audio data. The processed audio (voice) data can be converted into a format that can be transmitted to a mobile communication base station via the radio frequency unit 101 in telephone call mode. The microphone 1042 can implement various types of noise cancellation (or suppression) algorithms to eliminate (or suppress) noise or interference generated during the reception and transmission of audio signals.

[0035] The mobile terminal 100 also includes at least one sensor 105, such as a light sensor, a motion sensor, and other sensors. Optionally, the light sensor includes an ambient light sensor and a proximity sensor. Optionally, the ambient light sensor can adjust the brightness of the display panel 1061 according to the ambient light level, and the proximity sensor can turn off the display panel 1061 and / or backlight when the mobile terminal 100 is moved to the ear. As a type of motion sensor, the accelerometer sensor can detect the magnitude of acceleration in various directions (generally three axes), and can detect the magnitude and direction of gravity when stationary. It can be used for applications that recognize the phone's posture (such as landscape / portrait switching, related games, magnetometer posture calibration), vibration recognition related functions (such as pedometer, tapping), etc. Other sensors that may be configured in the phone, such as fingerprint sensors, pressure sensors, iris sensors, molecular sensors, gyroscopes, barometers, hygrometers, thermometers, and infrared sensors, will not be described in detail here.

[0036] The display unit 106 is used to display information input by the user or information provided to the user. The display unit 106 may include a display panel 1061, which may be configured in the form of a liquid crystal display (LCD), an organic light-emitting diode (OLED), or the like.

[0037] User input unit 107 can be used to receive input numerical or character information, and generate key signal inputs related to user settings and function control of the mobile terminal. Optionally, user input unit 107 may include touch panel 1071 and other input devices 1072. Touch panel 1071, also known as touch screen, can collect touch operations on or near the user (such as operations performed by the user using a finger, stylus, or any suitable object or accessory on or near touch panel 1071), and drive corresponding connection devices according to a pre-set program. Touch panel 1071 may include two parts: a touch detection device and a touch controller. Optionally, the touch detection device detects the user's touch position and the signal generated by the touch operation, and transmits the signal to the touch controller; the touch controller receives touch information from the touch detection device, converts it into touch point coordinates, sends it to processor 110, and can receive and execute commands sent by processor 110. In addition, touch panel 1071 can be implemented using various types such as resistive, capacitive, infrared, and surface acoustic wave. In addition to the touch panel 1071, the user input unit 107 may also include other input devices 1072. Optionally, other input devices 1072 may include, but are not limited to, one or more of the following: physical keyboard, function keys (such as volume control buttons, power buttons, etc.), trackball, mouse, joystick, etc., without being specifically limited here.

[0038] Optionally, the touch panel 1071 may cover the display panel 1061. When the touch panel 1071 detects a touch operation on or near it, it transmits the information to the processor 110 to determine the type of touch event. Subsequently, the processor 110 provides corresponding visual output on the display panel 1061 based on the type of touch event. Although in Figure 1 In this embodiment, the touch panel 1071 and the display panel 1061 are two independent components to realize the input and output functions of the mobile terminal. However, in some embodiments, the touch panel 1071 and the display panel 1061 can be integrated to realize the input and output functions of the mobile terminal. The specific implementation is not limited here.

[0039] Interface unit 108 serves as an interface through which at least one external device can connect to mobile terminal 100. For example, the external device may include a wired or wireless headset port, an external power supply (or battery charger) port, a wired or wireless data port, a memory card port, a port for connecting a device with an identification module, an audio input / output (I / O) port, a video I / O port, a headphone port, and so on. Interface unit 108 may be used to receive input (e.g., data, power, etc.) from the external device and transmit the received input to one or more elements within mobile terminal 100, or it may be used to transmit data between mobile terminal 100 and the external device.

[0040] The memory 109 can be used to store software programs and various data. The memory 109 may primarily include a program storage area and a data storage area. Optionally, the program storage area may store the operating system, applications required for at least one function (such as sound playback, image playback, etc.), etc.; the data storage area may store data created based on the use of the mobile phone (such as audio data, phonebook, etc.). Furthermore, the memory 109 may include high-speed random access memory, and may also include non-volatile memory, such as at least one disk storage device, flash memory device, or other volatile solid-state storage device.

[0041] The processor 110 is the control center of the mobile terminal. It connects various parts of the mobile terminal via various interfaces and lines. By running or executing software programs and / or modules stored in the memory 109, and by calling data stored in the memory 109, it performs various functions and processes data of the mobile terminal, thereby providing overall monitoring of the mobile terminal. The processor 110 may include one or more processing units; preferably, the processor 110 may integrate an application processor and a modem processor. Optionally, the application processor mainly handles the operating system, user interface, and applications, while the modem processor mainly handles wireless communication. It is understood that the modem processor may not be integrated into the processor 110.

[0042] The mobile terminal 100 may also include a power supply 111 (such as a battery) that supplies power to various components. Preferably, the power supply 111 can be logically connected to the processor 110 through a power management system, thereby enabling functions such as charging, discharging, and power consumption management through the power management system.

[0043] although Figure 1 As not shown, the mobile terminal 100 may also include a Bluetooth module, etc., which will not be described in detail here.

[0044] To facilitate understanding of the embodiments of this application, the communication network system on which the mobile terminal of this application is based is described below.

[0045] Please see Figure 2 , Figure 2 This application provides a communication network system architecture diagram. The communication network system is an LTE system based on the universal mobile communication technology. The LTE system includes a UE (User Equipment) 201, an E-UTRAN (Evolved UMTS Terrestrial Radio Access Network) 202, an EPC (Evolved Packet Core) 203, and the operator's IP services 204, which are connected in sequence.

[0046] Optionally, UE201 can be the aforementioned terminal 100, which will not be described in detail here.

[0047] E-UTRAN202 includes eNodeB2021 and other eNodeB2022s. Optionally, eNodeB2021 can connect to other eNodeB2022s via backhaul (e.g., X2 interface). eNodeB2021 connects to EPC203 and can provide UE201 with access to EPC203.

[0048] EPC203 may include an MME (Mobility Management Entity) 2031, an HSS (Home Subscriber Server) 2032, other MMEs 2033, an SGW (Serving Gateway) 2034, a PGW (Packet Data Network Gateway) 2035, and a PCRF (Policy and Charging Rules Function) 2036, etc. Optionally, MME2031 is the control node that handles signaling between UE201 and EPC203, providing bearer and connection management. HSS2032 is used to provide registers to manage functions such as the Home Location Register (not shown in the figure) and stores user-specific information such as service characteristics and data rates. All user data can be sent through SGW2034. PGW2035 can provide UE 201 IP address allocation and other functions. PCRF2036 is the policy and charging control decision point for service data flow and IP bearer resources. It selects and provides available policy and charging control decisions for the policy and charging enforcement function unit (not shown in the figure).

[0049] IP services 204 may include the Internet, intranet, IMS (IP Multimedia Subsystem), or other IP services.

[0050] Although the above description uses the LTE system as an example, those skilled in the art should understand that this application is not only applicable to the LTE system, but also to other wireless communication systems, such as GSM, CDMA2000, WCDMA, TD-SCDMA, and future new network systems (such as 5G), etc., without limitation.

[0051] Based on the above-described mobile terminal hardware structure and communication network system, various embodiments of this application are proposed.

[0052] First Embodiment Figure 3 This is a partial cross-sectional view of the display module according to the first embodiment of this application, as shown below. Figure 3 As shown, the display module includes a display screen 12 and a first support film 13 and a second support film 14 disposed below (on the back) of the display screen 12. The display screen 12 is connected to the first support film 13, and the first support film 13 is connected to the second support film 14. A metal support sheet 15 is disposed in the first support film 13 and / or the second support film 14.

[0053] The first support film 13 and / or the second support film 14 of the display module of this application are provided with metal support sheets 15. Since the Young's modulus of the metal support sheet 15 is large, the structural strength of the first support film 13 and / or the second support film 14 is large, which can effectively prevent deformation and top marks, and has strong impact resistance.

[0054] Optionally, the Young's modulus of the metal support sheet 15 is greater than or equal to 120 GPa; the metal support sheet 15 is, for example, one of a steel sheet (SUS), a copper alloy sheet, a titanium alloy sheet, or a composite metal sheet of steel sheet and copper foil.

[0055] Optionally, such as Figure 3 As shown, the first support film 13 is a flexible film (BP); the second support film 14 includes a second adhesive layer 141 and a metal support sheet 15, with the second adhesive layer 141 connecting the first support film 13 and the metal support sheet 15. In this embodiment, the first support film 13 is a flexible support layer of the display screen 12, and the metal support sheet 15 is not provided in the first support film 13; the metal support sheet 15 is provided in the second support film 14 to improve the structural strength of the second support film 14.

[0056] This embodiment combines a first support film 13 with a certain degree of flexibility with a second support film 14 with a large Young's modulus, which can improve the anti-printing and impact resistance of the display module and achieve a thinner and lighter design.

[0057] Optionally, the flexible film (BP) may be made of polyimide or PET flexible film material, but is not limited thereto.

[0058] Optionally, the second adhesive layer 141 is a buffer energy-absorbing adhesive; the buffer energy-absorbing adhesive is one of the following: silicone adhesive, non-Newtonian fluid adhesive, or biomimetic energy-absorbing material.

[0059] Optionally, the thickness of the second adhesive layer 141 is 0.08 mm to 0.13 mm, for example, 0.09 mm, 0.1 mm, 0.11 mm, or 0.12 mm.

[0060] Optionally, the metal support sheet 15 has a first thickness h1, which is 0.02 mm to 0.03 mm, for example, 0.022 mm, 0.024 mm, 0.026 mm, or 0.028 mm.

[0061] Optionally, the thickness of the second support membrane 14 is 0.1 mm to 0.15 mm, for example, 0.12 mm, 0.13 mm, or 0.14 mm.

[0062] Alternatively, the display screen 12 may be a flexible OLED screen or a non-flexible liquid crystal display screen 12.

[0063] Optionally, such as Figure 3 As shown, the display module also includes an optical film 16, an optical adhesive 17 (OCA), and a prism sheet 18 (Lens). The optical film 16 is disposed on the light-emitting side of the display screen 12, and the optical adhesive 17 connects the optical film 16 and the prism sheet 18. In this embodiment, the optical film 16 is, for example, a polarizing plate (POL), but is not limited thereto.

[0064] Second Embodiment Figure 4 This is a partial cross-sectional view of the display module according to the second embodiment of this application, as shown below. Figure 4 As shown, the display module in this embodiment has a structure that is largely the same as that in the first embodiment, except that the material of the second adhesive layer 141 is different. In this embodiment, the second adhesive layer 141 is pressure-sensitive adhesive (PSA).

[0065] Optionally, the thickness of the second adhesive layer 141 is less than 0.08 mm, for example, 0.07 mm, 0.06 mm, 0.05 mm, or 0.04 mm.

[0066] Optionally, the metal support sheet 15 has a second thickness h2, which is 0.04 mm to 0.06 mm, for example, 0.042 mm, 0.044 mm, 0.046 mm, 0.048 mm, 0.05 mm, 0.052 mm, 0.054 mm, 0.056 mm, or 0.058 mm. In this embodiment, the second thickness h2 of the metal support sheet 15 is greater than the first thickness h1 of the metal support sheet 15 in the first embodiment.

[0067] Since the thickness of the second adhesive layer 141 in this embodiment is less than that of the second adhesive layer 141 in the first embodiment, and the second thickness h2 of the metal support sheet 15 in this embodiment is slightly greater than the first thickness h1 of the metal support sheet 15 in the first embodiment, the thickness of the second support film 14 in this embodiment is less than that of the second support film 14 in the first embodiment. Under the premise of ensuring sufficient anti-molding and anti-impact performance, the equipment can also be thinned.

[0068] Third Embodiment Figure 5 This is a partial cross-sectional view of the display module according to the third embodiment of this application, as shown below. Figure 5 As shown, the display module of this embodiment has a structure that is largely the same as that of the display module of the first embodiment, except that the structure of the first support film 13 is different. In this embodiment, the first support film 13 includes a first adhesive layer 131 and a metal support sheet 15, with the first adhesive layer 131 connecting the display screen 12 and the metal support sheet 15; the second support film 14 includes a second adhesive layer 141 and a metal support sheet 15, with the second adhesive layer 141 connecting the two metal support sheets 15.

[0069] In this embodiment, both the first support membrane 13 and the second support membrane 14 are provided with metal support sheets 15, which can increase the structural strength of the first support membrane 13 and the second support membrane 14 to a greater extent, making the first support membrane 13 and the second support membrane 14 more resistant to impact and mold printing.

[0070] Optionally, the first adhesive layer 131 is a pressure-sensitive adhesive and the second adhesive layer 141 is a buffer energy-absorbing adhesive, or the second adhesive layer 141 is a pressure-sensitive adhesive and the first adhesive layer 131 is a buffer energy-absorbing adhesive.

[0071] Optionally, the metal support sheet 15 of the first support film 13 and the metal support sheet 15 of the second support film 14 may be made of the same or different materials. For example, when the metal support sheet 15 of the first support film 13 and the metal support sheet 15 of the second support film 14 are made of different materials, the metal support sheet 15 of the first support film 13 may be made of steel, and the metal support sheet 15 of the second support film 14 may be made of copper alloy or titanium alloy. Alternatively, the metal support sheet 15 of the first support film 13 may be made of a composite metal sheet of steel and copper foil, and the metal support sheet 15 of the second support film 14 may be made of copper alloy or titanium alloy.

[0072] Optionally, the thickness of the metal support sheet 15 of the first support film 13 and the metal support sheet 15 of the second support film 14 may be the same or different. For example, the thickness of the metal support sheet 15 of the first support film 13 may be less than the thickness of the metal support sheet 15 of the second support film 14, or the thickness of the metal support sheet 15 of the first support film 13 may be greater than the thickness of the metal support sheet 15 of the second support film 14.

[0073] Fourth embodiment Figure 6 This is a partial cross-sectional view of the display module according to the fourth embodiment of this application, as shown below. Figure 6 As shown, the display module in this embodiment has a structure that is largely the same as the display module in the above embodiment, except that the local structures of the display screen 12, the first support film 13, and the second support film 14 are different.

[0074] Optionally, the display screen 12 is a flexible OLED screen; the display module also includes an optical film 16, an optical adhesive 17 (OCA), and a flexible cover plate 19. The optical film 16 is disposed on the light-emitting side of the display screen 12, and the optical adhesive 17 connects the optical film 16 and the flexible cover plate 19. In this embodiment, the optical film 16 is, for example, a polarizing plate (POL) or a POP film. The POP film is formed by laminating a polyester film (PET) and an optical adhesive (OCA), or it is a single layer of optical adhesive (OCA).

[0075] Optionally, the first support film 13 includes a first adhesive layer 131 and a metal support sheet 15, with the first adhesive layer 131 connecting the display screen 12 and the metal support sheet 15; the second support film 14 includes a second adhesive layer 141 and a metal composite structure layer 142, with the second adhesive layer 141 connecting the metal support sheet 15 and the metal composite structure layer 142. In this embodiment, the metal composite structure layer 142 is, for example, composed of multiple layers of metal composite, or composed of multiple layers of metal and carbon fiber composite.

[0076] Since the first support film 13 of this embodiment is provided with a metal support sheet 15, it can effectively improve the imprint of the hollow pattern in the bending area and reduce the crease when the display module is bent.

[0077] Fifth Embodiment Figure 7 This is a partial cross-sectional view of the display module according to the fifth embodiment of this application, as shown below. Figure 7 As shown, the display module in this embodiment has a structure that is largely the same as that in the fourth embodiment, except that the local structures of the first support film 13 and the second support film 14 are different.

[0078] Optionally, the first support film 13 is a flexible film (BP); the material of the flexible film is polyimide or PET flexible film material, but is not limited thereto.

[0079] Optionally, the second support film 14 includes a metal composite structure layer 142, a second adhesive layer 141, a metal support sheet 15 and a third adhesive layer 143 stacked sequentially, with the third adhesive layer 143 connecting the metal support sheet 15 and the first support film 13.

[0080] The second support film 14 in this embodiment is formed by a metal support sheet 15, a metal composite structure layer 142, and multiple adhesive layers, which can effectively improve imprints and creases.

[0081] Optionally, the thickness of the metal support sheet 15 of the second support film 14 is 10um to 20um, for example, 12um, 14um, 16um, or 18um.

[0082] Sixth Embodiment This application also relates to a smart terminal, including the aforementioned display module.

[0083] Please refer to the above for the structure and functions of smart terminals; they will not be repeated here.

[0084] It is understood that the above scenarios are merely examples and do not constitute a limitation on the application scenarios of the technical solutions provided in the embodiments of this application. The technical solutions of this application can also be applied to other scenarios. For example, as those skilled in the art will know, with the evolution of system architecture and the emergence of new business scenarios, the technical solutions provided in the embodiments of this application are also applicable to similar technical problems.

[0085] The sequence numbers of the embodiments in this application are for descriptive purposes only and do not represent the superiority or inferiority of the embodiments.

[0086] The steps in the method of this application embodiment can be adjusted, combined, or deleted according to actual needs.

[0087] The units in the device of this application embodiment can be merged, divided, and deleted according to actual needs.

[0088] In this application, the same or similar terms, concepts, technical solutions and / or application scenario descriptions are generally described in detail only when they appear for the first time. When they appear again, they are generally not repeated for the sake of brevity. When understanding the technical solutions and other contents of this application, the same or similar terms, concepts, technical solutions and / or application scenario descriptions that are not described in detail later can be referred to their previous relevant detailed descriptions.

[0089] In this application, the descriptions of the various embodiments have different focuses. For parts that are not described in detail or recorded in a certain embodiment, please refer to the relevant descriptions of other embodiments.

[0090] The technical features of the present application can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of the present application.

[0091] Through the above description of the embodiments, those skilled in the art can clearly understand that the methods of the above embodiments can be implemented by means of software plus necessary general-purpose hardware platforms. Of course, they can also be implemented by hardware, but in many cases the former is a better implementation method. Based on this understanding, the technical solution of this application, in essence, or the part that contributes to the prior art, can be embodied in the form of a software product. This computer software product is stored in a storage medium (such as ROM / RAM, magnetic disk, optical disk) as described above, and includes several instructions to cause a terminal device (which may be a mobile phone, computer, server, controlled terminal, or network device, etc.) to execute the methods of each embodiment of this application.

[0092] In the above embodiments, implementation can be achieved, in whole or in part, through software, hardware, firmware, or any combination thereof. When implemented in software, it can be implemented, in whole or in part, as a computer program product. A computer program product includes one or more computer instructions. When the computer program instructions are loaded and executed on a computer, all or part of the flow or function according to the embodiments of this application is generated. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another. For example, computer instructions can be transmitted from one website, computer, server, or data center to another website, computer, server, or data center via wired (e.g., coaxial cable, fiber optic, digital subscriber line) or wireless (e.g., infrared, wireless, microwave, etc.) means. The computer-readable storage medium can be any available medium that a computer can access or a data storage device such as a server or data center that integrates one or more available media. The available medium can be a magnetic medium (e.g., floppy disk, storage disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium (e.g., solid-state disk (SSD)).

[0093] The above are merely preferred embodiments of this application and do not limit the patent scope of this application. Any equivalent structural or procedural transformations made using the content of this application's specification and drawings, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of this application.

Claims

1. A display module, characterized in that, It includes a display screen and a first support film and a second support film disposed below the display screen. The display screen is connected to the first support film, and the first support film is connected to the second support film. A metal support sheet is disposed in the first support film and / or the second support film.

2. The display module as described in claim 1, characterized in that, The first support film is a flexible film; the second support film includes a second adhesive layer and the metal support sheet, wherein the second adhesive layer is connected between the first support film and the metal support sheet.

3. The display module as described in claim 2, characterized in that, The second adhesive layer is a buffer energy-absorbing adhesive or a pressure-sensitive adhesive; and / or, The energy-absorbing buffer adhesive is one of the following: silicone-based adhesive, non-Newtonian fluid adhesive, or biomimetic energy-absorbing material.

4. The display module as described in claim 3, characterized in that, When the second adhesive layer is a buffer energy-absorbing adhesive, the metal support sheet has a first thickness; When the second adhesive layer is a pressure-sensitive adhesive, the metal support sheet has a second thickness, which is greater than the first thickness.

5. The display module as described in claim 1, characterized in that, The first support film includes a first adhesive layer and the metal support sheet, wherein the first adhesive layer is connected between the display screen and the metal support sheet; The second support film includes a second adhesive layer and the metal support sheet, wherein the second adhesive layer is connected between the two metal support sheets.

6. The display module as described in claim 5, characterized in that, The first adhesive layer is a pressure-sensitive adhesive, and the second adhesive layer is a buffer energy-absorbing adhesive.

7. The display module as described in claim 1, characterized in that, The display screen is a flexible screen; the display module also includes an optical film, an optical adhesive and a flexible cover plate, the optical film is disposed on the light-emitting side of the display screen, and the optical adhesive connects the optical film and the flexible cover plate.

8. The display module as described in claim 7, characterized in that, The first support film includes a first adhesive layer and the metal support sheet, wherein the first adhesive layer is connected between the display screen and the metal support sheet; The second support film includes a second adhesive layer and a metal composite structure layer, wherein the second adhesive layer is connected between the metal support sheet and the metal composite structure layer.

9. The display module as described in claim 7, characterized in that, The first support membrane is a flexible membrane; The second support film includes a metal composite structure layer, a second adhesive layer, the metal support sheet, and a third adhesive layer stacked sequentially, wherein the third adhesive layer is connected between the metal support sheet and the first support film.

10. A smart terminal, characterized in that, Includes the display module described in any one of claims 1 to 9.

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