Display device and intelligent terminal

Abstract

The application discloses a display device and a smart terminal, and relates to the technical field of display devices, and discloses a display device, which comprises a screen assembly, a middle frame and filling glue. The screen assembly comprises a cover plate and a display module which are arranged in layers, the edge of the cover plate extends out of the display module, and the edge of the display module is provided with a flexible part which is curved and extends towards the side opposite to the cover plate. The middle frame comprises a middle plate and a frame which is arranged around the middle plate, and the middle plate is located on the side of the display module opposite to the cover plate. The screen assembly and the middle frame are provided with a first cavity therebetween, and the flexible part is located in the first cavity. The filling glue is filled in the first cavity at least. The filling glue is injected into the first cavity by taking the middle frame as a limit, the manufacturing process is simple, the cost is reduced, no mounting gap needs to be arranged between the filling glue and the middle frame, and the width of the frame is reduced.

Description

Technical Field

[0001] This invention relates to the field of display technology, and in particular to a display device and a smart terminal. Background Technology

[0002] In recent years, mobile phones, tablets, and other electronic devices have become increasingly common in people's lives. Mobile phone manufacturers have consistently explored ways to increase the screen-to-body ratio for better visual effects. A smartphone screen mainly consists of a display panel and a transparent cover. To prevent users from seeing halos and internal circuitry, and also to facilitate cover installation, an opaque area is provided around the light-transmitting area of ​​the cover. The display panel is projected through this light-transmitting area, while the opaque area is bonded to the step on the mid-frame using sealant to secure the screen and provide waterproofing for the smartphone's front cover.

[0003] To meet the waterproof rating requirements of smartphones, ensure the bonding strength between the screen and the mid-frame, and prevent various bright line abnormalities caused by impacts during assembly, production, or user drops to the PAD bending area of ​​the display screen, a certain width of adhesive must be provided between the step on the mid-frame and the opaque area of ​​the cover plate. Therefore, when processing and molding the cover plate, a sufficient amount of adhesive width must be reserved in the opaque area. This results in a wider opaque area occupying a larger portion of the cover plate, leading to excessively wide black borders and a lower screen-to-body ratio. Summary of the Invention

[0004] In order to overcome the shortcomings and deficiencies of the existing technology, the purpose of this invention is to provide a display device and a smart terminal to solve the problems of large bezels, complex manufacturing processes and high manufacturing costs of the existing display devices.

[0005] The objective of this invention is achieved through the following technical solution: This invention provides a display device, comprising: A screen assembly includes a cover plate and a display module stacked together, wherein the edge of the cover plate extends out of the display module, and the edge of the display module has a flexible portion that is curved and extends toward a side opposite to the cover plate; The middle frame includes a middle plate and a frame surrounding the middle plate, wherein the middle plate is located on the side of the display module facing away from the cover plate; A first cavity is provided between the screen assembly and the mid-frame, and the flexible part is located within the first cavity; A filler adhesive, wherein the filler adhesive at least fills the first cavity.

[0006] Furthermore, the middle frame is provided with an injection hole, which is at least connected to the first cavity, and the filler adhesive is filled into the first cavity through the injection hole.

[0007] Furthermore, the injection hole is located on the middle plate and penetrates the middle plate; and / or the injection hole is located on the frame and penetrates the frame.

[0008] Furthermore, a gap is provided between the frame and the cover plate, and the gap is at least connected to the first cavity.

[0009] Furthermore, a second cavity is provided between the screen assembly and the mid-frame, and the first cavity and the second cavity are connected end to end to form a ring structure.

[0010] Furthermore, the gap is connected to the first cavity and the second cavity, the injection hole is connected to the first cavity and the second cavity, the filler glue is filled into the first cavity and the second cavity, and the filler glue is filled into the first cavity and the second cavity through the injection hole.

[0011] Furthermore, the cover plate, except for the side closest to the flexible part, is bonded to the frame with sealant.

[0012] Furthermore, the frame is provided with an installation step, and the cover plate is installed on the installation step.

[0013] Furthermore, a receiving cavity is formed between the flexible part and the display module on the side facing the display module, the receiving cavity is connected to the first cavity, and the filling adhesive is also filled in the receiving cavity.

[0014] Furthermore, an adhesive is provided between the display module and the middle plate, and the display module is bonded to the middle plate through the adhesive.

[0015] This application also provides a smart terminal, including the display device described above.

[0016] The beneficial effects of this invention are as follows: By injecting adhesive into the first cavity with the mid-frame as the limit, this application achieves the following: ① Simple design and convenient process flow; ② Reliability of the screen is achieved without increasing cost or process difficulty; ③ Lower cost, no need for expensive equipment, and no need to outsource the screen components to a third-party factory for LIPO process to make protective adhesive, which can be directly produced in the terminal's own factory, greatly reducing production costs; ④ Since no installation gap needs to be set between the filler adhesive and the mid-frame, a narrow bezel of the whole device is achieved without increasing cost or process difficulty. 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.

[0019] Figure 2 This is a communication network system architecture diagram provided for an embodiment of this application.

[0020] Figure 3 This is a schematic diagram of the upward-viewing planar structure of the display device after removing the middle plate in this invention.

[0021] Figure 4 This is a schematic diagram of a partial cross-sectional structure of the display device in the first cavity region before glue is applied, according to the first embodiment of the present invention.

[0022] Figure 5 This is a schematic diagram of a partial cross-sectional structure of the display device in the first cavity region after glue injection in the first embodiment of the present invention.

[0023] Figure 6 This is a schematic diagram of a partial cross-sectional structure of the display device in the first cavity region before glue is applied, according to the second embodiment of the present invention.

[0024] Figure 7 This is a schematic diagram of a partial cross-sectional structure of the display device in the first cavity region after glue injection in the second embodiment of the present invention.

[0025] 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

[0026] 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.

[0027] 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.

[0028] 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.

[0029] 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.

[0030] 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).”

[0031] 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.

[0032] It should be understood that the specific embodiments described herein are merely illustrative of this application and are not intended to limit this application.

[0033] 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.

[0034] 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.

[0035] 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.

[0036] 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.

[0037] The following is combined 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.

[0038] 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 WiFi module 102 is shown, but it is understood that it is not a necessary component of a mobile terminal and can be omitted as needed without changing the nature of the invention.

[0039] 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.

[0040] 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 medium) 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.

[0041] 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, an 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.

[0042] 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.

[0043] 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 a touch screen, can collect touch operations performed by the user on or near it (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 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.

[0044] 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.

[0045] 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.

[0046] 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.

[0047] 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.

[0048] 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.

[0049] 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.

[0050] 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.

[0051] 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.

[0052] Optionally, UE201 can be the aforementioned terminal 100, which will not be described in detail here.

[0053] E-UTRAN202 includes eNodeB2021 and other eNodeB2022, etc. Optionally, eNodeB2021 can connect to other eNodeB2022 via backhaul (e.g., X2 interface), and eNodeB2021 connects to EPC203, providing access from UE201 to EPC203.

[0054] 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).

[0055] IP services 204 may include the Internet, intranet, IMS (IP Multimedia Subsystem), or other IP services.

[0056] 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.

[0057] Based on the above-described mobile terminal hardware structure and communication network system, various embodiments of this application are proposed.

[0058] First Embodiment Figure 3 This is a schematic diagram of the upward-viewing planar structure of the display device after removing the middle plate in this invention. Figure 4 This is a schematic diagram of a partial cross-sectional structure of the display device in the first cavity region before glue is applied, according to the first embodiment of the present invention. Figure 5 This is a schematic diagram of a partial cross-sectional structure of the display device in the first cavity region after glue injection in the first embodiment of the present invention.

[0059] like Figures 3 to 5 As shown, the first embodiment of the present invention provides a display device, including: a screen assembly 30, a middle frame 40 and a filler 50, wherein the screen assembly 30 is mounted on the inner periphery of the middle frame 40, and the filler 50 fills the cavity between the screen assembly 30 and the middle frame 40.

[0060] The screen assembly 30 includes a cover plate 31 and a display module 32 stacked together. The cover plate 31 includes a light-transmitting area and an opaque area around the light-transmitting area. The edge of the cover plate 31 is the opaque area of ​​the cover plate 31, which extends out of the display module 32. The display module 32 displays through the light-transmitting area.

[0061] The opaque area of ​​the cover plate 31 prevents light leakage from the edges of the display module 32 and covers numerous traces along the edges of the display module 32. Furthermore, in the embodiments described later, the opaque area is also used for bonding with the frame 42. The opaque area of ​​the cover plate 31 and the frame 42 form the visual black border of the smartphone screen. Since the frame 42 has impact resistance requirements, it is generally not possible to make it further narrow. Therefore, reducing the width of the opaque area on the entire cover plate 31 is key to achieving a narrow black border and a high screen-to-body ratio.

[0062] like Figures 3-4 As shown, the edge of the cover plate 31 extends out of the display module 32, and the edge of the display module 32 has a curved flexible portion 321 extending towards the side opposite to the cover plate 31. The main function of this flexible portion 321 is to mount a display driver integrated circuit (DDIC), thereby achieving electrical interconnection between the display module 32 and the display driver chip. The main function of the display driver chip is to send drive signals and data to the display module 32 in the form of electrical signals, and through the control of brightness and color, enable image information such as letters and pictures to be displayed on the display module 32.

[0063] The display driver chip is mounted on the side of the display module 32 facing away from the cover plate 31 via the flexible part 321. This design allows the display driver chip to be stacked with the display module 32, thereby reducing the number and size of components around the display module 32, which is beneficial for narrow black border design.

[0064] Alternatively, the flexible part 321 can be constructed in two main ways: one is that the flexible part 321 is composed of a flexible circuit board, and the flexible circuit board is electrically and mechanically interconnected with the display module 32; the other is that the flexible part 321 is directly composed of the display module 32, and a substrate extends outward from the display module 32 to form the flexible part 321.

[0065] like Figures 3-4 As shown, the mid-frame 40 includes a mid-plate 41 and a frame 42 arranged around the mid-plate 41. The mid-plate 41 is located on the side of the display module 32 facing away from the cover plate 31. A gap 421 is provided between the frame 42 and the cover plate 31. The cover plate 31 is located on the inner periphery of the frame 42, and the frame 42 can effectively protect the cover plate 31, ensuring the reliability of the cover plate 31 during smartphone drop tests. The screen assembly 30 and the mid-frame 40 have a first cavity 431 and a second cavity 432 that are connected end to end and form an annular shape. The gap 421 is at least connected to the first cavity 431. The flexible part 321 is located in the first cavity 431. The mid-frame 40 is provided with an injection hole 44, which is at least connected to the first cavity 431.

[0066] The filler adhesive 50 fills at least the first cavity 431, and the filler adhesive 50 is filled into the first cavity 431 through the injection hole 44. This allows the flexible part 321 to be encased by the filler adhesive 50, thereby improving the vibration resistance of the smartphone. Specifically, when the screen mounting structure of this embodiment is applied to a smartphone, the filler adhesive 50 actually occupies a portion of the internal space of the smartphone. When the side of the smartphone with the filler adhesive 50 falls to the ground, the resulting vibration mechanical energy can be absorbed by the filler adhesive 50. Alternatively, when other sides of the smartphone fall to the ground, the resulting vibration mechanical energy can be partially absorbed by the filler adhesive 50 through the transmission via the mid-frame 40. In either case, the vibration damage to the internal components of the smartphone is reduced, thus improving the overall vibration resistance of the smartphone.

[0067] Optionally, the cover plate 31 can be bonded to the display module 32. For example, an adhesive 33 can be applied to the outer surface of the display module 32. The adhesive can be layered, and the cover plate 31 is bonded to the display module 32 through the adhesive. Specifically, the adhesive 33 can be optically clear adhesive (OCA). Optical adhesive is a double-sided bonding tape without a matrix material. It has the characteristics of being colorless and transparent, having high light transmittance (total light transmittance >99%), high adhesion, high temperature resistance, and UV resistance. It also has a controlled thickness, can provide uniform spacing, and will not cause yellowing, peeling, or deterioration problems after long-term use.

[0068] Optionally, the cover plate 31 can be made of glass, acrylic (also called plexiglass), crystal, or quartz, or any other transparent hard material. The surface of the cover plate 31 can be curved, flat, or a combination of curved and flat surfaces, i.e., a 2.5D cover plate 31. Opaque areas can be formed on the transparent cover plate 31 using a screen printing process.

[0069] In this embodiment, gap 421 is connected to the first cavity 431 and the second cavity 432, and injection hole 44 is also connected to the first cavity 431 and the second cavity 432. Filler 50 is filled into the first cavity 431 and the second cavity 432 through injection hole 44. By controlling the amount of glue, the filler 50 will not overflow from the gap 421 between cover plate 31 and frame 42. Of course, a certain amount of filler 50 can also be filled into gap 421 to improve sealing effect and aesthetics. In other embodiments, gap 421 may only be connected to the first cavity 431, injection hole 44 may be connected to the first cavity 431, and filler 50 may be filled into the first cavity 431 through injection hole 44. Except for the side near the flexible part 321, the cover plate 31 is bonded to the frame 42 by sealant. That is, except for the side near the flexible part 321, the cover plate 31 is bonded to the frame 42 by dispensing adhesive.

[0070] Optionally, the gap 421 is an annular structure and surrounds the outer periphery of the cover plate 31. There are multiple injection holes 44, with at least one injection hole 44 corresponding to the area of ​​the first cavity 431 and at least one injection hole 44 corresponding to the area of ​​the second cavity 432, thereby facilitating the injection of adhesive into the first cavity 431 and the second cavity 432.

[0071] In this embodiment, the glue injection hole 44 is located on and penetrates the middle plate 41. Since a rear cover is usually installed on the side of the middle plate 41 away from the cover plate 31, placing the glue injection hole 44 on the middle plate 41 can be concealed by the rear cover, improving aesthetics. Of course, in other embodiments, the glue injection hole 44 is also located on and penetrates the frame 42; or, the glue injection hole 44 is provided on both the middle plate 41 and the frame 42.

[0072] In this embodiment, the frame 42 is provided with an installation step 422, and the cover plate 31 is installed on the installation step 422. By setting the installation step 422, the screen component 30 is positioned and installed inside the middle frame 40.

[0073] Furthermore, a receiving cavity 3211 is formed between the flexible part 321 and the display module 32 on the side facing the display module 32. The receiving cavity 3211 is connected to the first cavity 431, and the filler adhesive 50 is also filled in the receiving cavity 3211. The flexible part 321 is usually a curved sheet structure, and there is no need to provide openings on the flexible part 321. The two ends of the receiving cavity 3211 are connected to the first cavity 431, so that when the first cavity 431 is filled with adhesive, it is convenient for the filler adhesive 50 to be injected into the receiving cavity 3211, so that the flexible part 321 is wrapped by the filler adhesive 50, thereby improving the vibration resistance.

[0074] Furthermore, an adhesive 60 is provided between the display module 32 and the middle plate 41. The display module 32 is bonded to the middle plate 41 by the adhesive 60. The adhesive 60 can provide initial fixation for the display module 32 and the middle frame 40 before the filler adhesive 50 is injected. The adhesive 60 can be foam adhesive or hot melt adhesive.

[0075] In this embodiment, the display module 32 further includes a polarizer 322, a display device 323, a first backplate 324, a support composite film (SCF) 325, a second backplate 326, and a conductive cloth 327, which are stacked sequentially. The polarizer 322 is located closer to the cover plate 31, and the conductive cloth 327 is located closer to the middle plate 41. Optionally, the display device 323 is a flexible self-emissive display panel (OLED, Organic Light-Emitting Diode), and the flexible portion 321 is a part of the display device 323. The conductive cloth 327 is, for example, a flexible substrate, which is conductively connected to the display driver chip. The polarizer 322 polarizes light, and the first backplate 324, the support composite film 325, and the second backplate 326 can all enhance the intensity of the display device, making the display device 323 flatter. Of course, in other embodiments, the display device 323 can also be a liquid crystal display panel, and the flexible portion 321 is composed of a flexible circuit board and is conductively connected to the liquid crystal display panel.

[0076] This application also provides a method for manufacturing a display device, used to manufacture the display device as described above. The manufacturing method includes: The screen assembly 30 is installed inside the middle frame 40, and the display module 32 is bonded to the middle plate 41. Specifically, the display module 32 is bonded to the middle plate 41 using adhesive 60, thereby providing initial fixation for the display module 32 and the middle frame 40.

[0077] Filler adhesive 50 is injected into the first cavity 431 through the injection hole 44. Specifically, to prevent adhesive spillage, a simple pressure fixture can be used to inject the fluid adhesive into the first cavity 431 through the injection hole 44, thereby encapsulating the flexible part 321. Gas in the first cavity 431 overflows from the gap 421, and filler adhesive 50 is formed after the adhesive solidifies. Optionally, to improve sealing, a certain amount of filler adhesive 50 can also be filled into the gap 421, as long as the adhesive does not overflow. The amount of adhesive can be controlled to prevent the filler adhesive 50 from overflowing from the gap 421 between the cover plate 31 and the frame 42.

[0078] In this embodiment, the manufacturing method includes: Filler adhesive 50 is injected into the first cavity 431 and the second cavity 432 through the injection hole 44. Specifically, the gap 421 is connected to the first cavity 431 and the second cavity 432, and the injection hole 44 is also connected to the first cavity 431 and the second cavity 432. The filler adhesive 50 fills the first cavity 431 and the second cavity 432 through the injection hole 44. Optionally, the gap 421 is an annular structure surrounding the outer periphery of the cover plate 31. Multiple injection holes 44 are provided, with at least one injection hole 44 corresponding to a region of the first cavity 431 and at least one injection hole 44 corresponding to a region of the second cavity 432, thus facilitating the injection of adhesive into the first cavity 431 and the second cavity 432.

[0079] Furthermore, the manufacturing method includes: A negative pressure device is installed on one side of the gap 421 to draw air from the gap 421, thereby improving the injection efficiency and preventing air bubbles from forming in the filler 50. Alternatively, the negative pressure device can be omitted, and the filler 50 can be injected into the first cavity 431 and the second cavity 432 through the injection hole 44 using a positive pressure injection method.

[0080] Second Embodiment Figure 6 This is a schematic diagram of a partial cross-sectional structure of the display device in the first cavity region before glue is applied, according to the second embodiment of the present invention. Figure 7 This is a partial cross-sectional structural diagram of the display device after glue injection in the first cavity region according to the second embodiment of the present invention. Figure 6 and Figure 7As shown, the display device provided in the second embodiment of the present invention is different from that in the first embodiment ( Figures 3 to 5 The display devices in these are basically the same, the differences being: In this embodiment, there is no need to set the mounting steps 422 on the frame 42. The inner wall of the frame 42 is a straight structure. The entire screen assembly 30 is directly set on the inner periphery of the frame 42, which can reduce the processing difficulty and improve the strength of the frame 42.

[0081] Those skilled in the art should understand that the remaining structure and working principle of this embodiment are the same as those of the first embodiment, and will not be described again here.

[0082] This application provides a smart terminal, including a display device as described in the first embodiment and the second embodiment.

[0083] In summary, this application provides an injection hole 44 in the middle frame 40 that communicates with at least the first cavity 431, allowing for injection of adhesive into the first cavity 431 within the middle frame 40. Furthermore, a gap 421, communicating with at least the first cavity 431, is provided between the frame 42 and the cover plate 31. This gap 421 allows for venting during adhesive injection into the first cavity 431, facilitating the injection of filler adhesive. Therefore, this application offers the following advantages over existing LIPO processes: ① The design is simple and the process is convenient; ② Screen reliability was achieved without increasing costs or manufacturing complexity; ③ Lower cost, no need for expensive equipment, and no need to outsource screen components to third-party factories for LIPO process to make protective glue. It can be produced directly in the terminal's own factory, which greatly reduces production costs. ④ Since no installation gap is required between the filler glue and the middle frame, a narrow bezel is achieved for the whole machine without increasing cost or process difficulty, reducing the bezel size by at least 0.4mm compared to the existing LIPO process.

[0084] 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 device, characterized in that, include: The screen assembly (30) includes a cover plate (31) and a display module (32) stacked together, the edge of the cover plate (31) extending out of the display module (32), and the edge of the display module (32) having a flexible portion (321) that is curved and extends toward a side opposite to the cover plate (31). The middle frame (40) includes a middle plate (41) and a frame (42) arranged around the middle plate (41), wherein the middle plate (41) is located on the side of the display module (32) facing away from the cover plate (31); A first cavity (431) is provided between the screen assembly (30) and the middle frame (40), and the flexible part (321) is located in the first cavity (431); Filler adhesive (50) is used to fill at least the first cavity (431).

2. The display device according to claim 1, characterized in that, The middle frame (40) is provided with an injection hole (44), which is at least connected to the first cavity (431), and the filler glue (50) is filled into the first cavity (431) through the injection hole (44).

3. The display device according to claim 2, characterized in that, The glue injection hole (44) is provided on the middle plate (41) and penetrates the middle plate (41); and / or the glue injection hole (44) is provided on the frame (42) and penetrates the frame (42).

4. The display device according to claim 1, characterized in that, A gap (421) is provided between the frame (42) and the cover plate (31), and the gap (421) is at least in communication with the first cavity (431); and / or, The screen assembly (30) and the middle frame (40) also have a second cavity (432), and the first cavity (431) and the second cavity (432) are connected end to end to form a ring structure.

5. The display device according to claim 4, characterized in that, The gap (421) is connected to the first cavity (431) and the second cavity (432), the glue injection hole (44) is connected to the first cavity (431) and the second cavity (432), the filler glue (50) is filled in the first cavity (431) and the second cavity (432), and the filler glue (50) is filled in the first cavity (431) and the second cavity (432) through the glue injection hole (44).

6. The display device according to claim 1, characterized in that, The cover plate (31) is bonded to the frame (42) with sealant, except for the side near the flexible part (321).

7. The display device according to any one of claims 1-6, characterized in that, The frame (42) is provided with an installation step (422), and the cover plate (31) is installed on the installation step (422).

8. The display device according to any one of claims 1-6, characterized in that, The flexible part (321) has a receiving cavity (3211) between the side facing the display module (32) and the display module (32). The receiving cavity (3211) is connected to the first cavity (431), and the filler adhesive (50) is also filled in the receiving cavity (3211).

9. The display device according to any one of claims 1-6, characterized in that, An adhesive (60) is provided between the display module (32) and the middle plate (41), and the display module (32) is bonded to the middle plate (41) through the adhesive (60).

10. A smart terminal, characterized in that, Includes the display device as described in any one of claims 1-9.

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