Display module and display device

Abstract

The utility model provides a display module and a display device, and the display module comprises a display panel which comprises a front surface perpendicular to a light emitting direction and a side surface located at the peripheral side of the front surface; the cover plate comprises a first area and a second area, the first area is located on the front face of the display panel, and the second area is located on the side face of the display panel; the touch panel is located on at least one side face of the display panel, the touch panel is installed on the side, facing the display panel, of the second area, a virtual key area used for touch operation is arranged on the side, deviating from the display panel, of the second area, and the virtual key area corresponds to the touch panel in position. According to the display module, the touch keys can be integrated on the cover plate, the number of entity keys is reduced, the integrated design of the display module is improved, and the waterproof performance is improved.

Description

Technical Field

[0001] This utility model generally relates to the field of display technology, and specifically to a display module and a display device. Background Technology

[0002] Currently, the glass cover, mid-frame, and buttons of mass-produced mobile phones are all installed separately. During the installation process, there will be step differences and gaps around the perimeter. This affects the waterproof performance of the phone on the one hand, and makes the main body of the phone have a monotonous design on the other hand. Utility Model Content

[0003] In view of the above-mentioned defects or deficiencies in the prior art, it is desirable to provide a display module and display device that, by placing a cover plate on the front and side of the display panel, facilitates the integration of touch buttons on the cover plate, reduces the need for physical buttons, and thereby improves the integrated design of the display module and enhances its waterproof performance.

[0004] In a first aspect, this utility model provides a display module, comprising:

[0005] The display panel includes a front surface perpendicular to the light emission direction and a side surface located around the periphery of the front surface;

[0006] The cover plate includes a first area and a second area, the first area being located on the front of the display panel and the second area being located on the side of the display panel;

[0007] The touchpad is located on at least one side of the display panel, and is installed in the second area on the side facing the display panel. The second area on the side away from the display panel is provided with a virtual button area for touch operation, and the virtual button area corresponds to the position of the touchpad.

[0008] As an optional solution, the display panel also includes a back panel opposite the front panel, on which a circuit board is provided. The touch panel is electrically connected to the circuit board to enable touch button operation.

[0009] Preferably, the display module further includes a connector, one end of which is electrically connected to the circuit board and the other end of which is electrically connected to the touchpad.

[0010] As an optional solution, the first area and the second area are an integral structure, and the cover plate is in a bent state. In the bent state, the first area covers the front of the display panel, and the second area bends from the edge of the first area toward the side of the display panel to a position parallel to the display panel.

[0011] As an optional solution, adhesive is provided between the touchpad and the second area.

[0012] As an optional solution, sealant is used to fill the space between the second area and the side of the display panel.

[0013] As an optional feature, the second area is also equipped with an indicator component, the position of which corresponds to the position of the touchpad.

[0014] As an optional solution, a polarizer is also provided on the light-emitting side of the display panel, with the first region located on the side of the polarizer facing away from the display panel, and an optically transparent adhesive is provided between the polarizer and the first region.

[0015] As an optional solution, the display panel has a display area and a peripheral area, and the side of the second area facing the display panel and the side of the first area located in the peripheral area facing the display panel are both coated with ink.

[0016] As an optional solution, the display module also includes a heat dissipation film, which is disposed on the backlight side of the display panel.

[0017] Secondly, this utility model provides a display device, including the display module of the first aspect.

[0018] The display module of this utility model has a first area of ​​cover plate located on the front of the display panel and a second area of ​​cover plate located on the side of the display panel. The touch panel is mounted on the second area, and virtual buttons are also provided on the second area corresponding to the position of the touch panel. This facilitates the integration of the touch buttons and the cover plate into one unit, improves the integrated design of the display module, and reduces step differences and gaps. Furthermore, the setting of touch buttons helps to reduce the need for openings for physical buttons, which helps to further improve the waterproof performance of the entire display module, thereby increasing the product's service life and enhancing its competitiveness. Attached Figure Description

[0019] Other features, objectives, and advantages of this application will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0020] Figure 1 This is a schematic diagram of the structure of a display module in the prior art;

[0021] Figure 2 This is a schematic diagram of the structure of the display module according to an embodiment of this application;

[0022] Figure 3 This is a schematic diagram of the rear structure of the display device according to an embodiment of this application;

[0023] Figure 4 This is a side view of the display device according to an embodiment of this application.

[0024] In the picture,

[0025] 100. Display module;

[0026] 10. Display panel: S1, front; S2, side; S3, back.

[0027] 20. Cover plate; 21. First area; 22. Second area;

[0028] 30. Touchpad;

[0029] 40. Polarizing film; 50. Optical transparent adhesive; 60. Flexible circuit board; 70. Connector; 80. Adhesive; 81. Sealant; 90. Ink; 91. Heat dissipation film.

[0030] 200. Display device; 210. Main control board;

[0031] B1, First side; B2, Second side; B3, Third side; B4, Fourth side. Detailed Implementation

[0032] The present application will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the relevant utility model and not intended to limit the scope of the utility model. Furthermore, it should be noted that, for ease of description, only the parts relevant to the utility model are shown in the accompanying drawings.

[0033] It should be noted that, unless otherwise specified, the embodiments and features described in this application can be combined with each other. This application will now be described in detail with reference to the accompanying drawings and embodiments.

[0034] Currently, such as Figure 1 As shown, a conventional display module typically includes a display panel 10. A heat dissipation film 91 is provided on the backlight side of the display panel 10, and a polarizer 40 and a cover plate 20 are provided on the light-emitting side of the display panel 10. The cover plate 20 is bonded to the polarizer 40 with optically transparent adhesive 50 (OCA). The display panel 10 has a display area and a peripheral area. Ink 90 is provided on the area corresponding to the peripheral edge of the cover plate 20 to block light and prevent external light from affecting the display effect of the display panel. When this display module is used in mobile phone products, the cover plate, mid-frame, and buttons are all installed separately, resulting in step differences and gaps around the perimeter. This leads to a monotonous phone design, and the presence of physical buttons requires openings in the mid-frame, resulting in poor water resistance.

[0035] In view of the above problems, firstly, embodiments of this application provide a display module 100, such as... Figure 2 As shown, it includes:

[0036] Display panel 10, the display panel 10 includes a front surface S1 perpendicular to the light emission direction and a side surface S2 located around the front surface S1;

[0037] The cover plate 20 includes a first region 21 and a second region 22. The first region 21 is located on the front side S1 of the display panel 10, and the second region 22 is located on the side side S2 of the display panel 10.

[0038] The touchpad 30 is located on at least one side S2 of the display panel 10, and the touchpad 30 is installed on the side of the second region 22 facing the display panel 10. The side of the second region 22 away from the display panel 10 is provided with a virtual button area for touch operation, and the virtual button area corresponds to the position of the touchpad 30.

[0039] It should be noted that the display panel 10 in the embodiments of this application can be a curved display panel or a flat display panel. A curved display panel includes a flat center and curved edges. The display panel 10 includes a display area and a non-display area (peripheral area) located around the display area. The display area is used for display, and the non-display area includes bonding pad areas and areas for mounting other structures. The non-display area may include one bonding pad area. Alternatively, depending on actual process requirements, the non-display area may have two or more bonding pad areas.

[0040] Since the display panel 10 typically has a certain thickness, in the embodiments of this application, the surface of the display panel 10 perpendicular to the light emission direction is referred to as the front surface S1 of the display panel 10 (e.g., ...). Figure 2 The surface parallel to the X direction shown in the diagram, and the surface of the display panel 10 parallel to the light emission direction (or the surface located on the periphery of the front side S1) are denoted as the side surface S2 of the display panel 10 (e.g., the surface parallel to the X direction shown in the diagram). Figure 2 (The surface shown is parallel to the Y direction).

[0041] It is understood that the cover plate 20 is mainly used to protect the entire display module. The cover plate 20 is typically bonded to the front surface S1 of the display panel 10 with optically transparent adhesive 50 (OCA), and the orthogonal projection of the cover plate 20 on the display panel 10 at least covers the display area of ​​the display panel 10. The cover plate 20 can be, but is not limited to, glass, transparent resin material, or PET, as long as it has good light transmittance to ensure reliable light emission. The embodiments of this application do not specifically limit this. Taking glass as an example, when applied to curved display products, at least one side of the cover plate 20 is bent, and the bonding of each layer of the display module is achieved through a 3D bonding process.

[0042] The cover plate 20 includes a first region 21 and a second region 22. The first region 21 is mainly used to cover the front S1 of the display panel 10, thus protecting the display panel 10 while ensuring that the display module has a good display effect. The second region 22 is located on the side S2 of the display panel 10, so that touch buttons and other structures can be set in the second region 22. This reduces the use of metal frames in the display module during the manufacturing process of the display device, which is conducive to the integration of the entire display module structure, reduces the setting of openings, and thus helps to improve the waterproof performance of the display device.

[0043] It is also understood that the cover plate 20 can be one, two, or more, depending on the actual process. When there is one cover plate 20, it can be bent to form the first region 21 and the second region 22, thus reducing the number of cover plates 20, simplifying the processing, and reliably covering the front S1 and side S2 of the display panel 10, avoiding step differences and gaps, improving the integrated design of the display module, and thus facilitating the diversification of the appearance design of the display device. Of course, in some embodiments, there can also be four cover plates 20, with one covering the front S1 of the display panel 10 configured as the first region 21, and the remaining three located on the side S2 of the display panel 10 configured as the second region 22. In the actual processing, the edges of the four cover plates 20 that are adjacent to each other must be in close contact and sealed.

[0044] The touchpad 30 can be any existing touchpad, such as, but not limited to, a capacitive touchpad. Depending on the actual needs of the product, the touchpad 30 can be installed on one, two, or three sides of the display panel 10. The touchpad 30 is fixed to the second area 22 of the cover plate 20 facing the side S2 of the display panel 10 using any fixing method (such as, but not limited to, adhesive bonding). A virtual button area is provided on the side of the second area 22 of the cover plate 20 away from the side S2 of the display panel 10. The virtual button area corresponds to the position of the touchpad 30, allowing the user to perform functions such as volume adjustment, taking a photo, or powering on the device by touching the virtual button area.

[0045] In some embodiments, a touch panel is directly installed in the area where buttons need to be set in the second region 22 of the cover plate 20. The touch panel is configured as a touchpad 30.

[0046] The virtual button area is primarily used to indicate and remind users of the location for touch operations, facilitating user operation. The virtual button area may include, but is not limited to, strip-shaped scratches formed in the second area 22 of the cover plate 20.

[0047] The display module of this application solves the problems of poor integration in existing display modules, resulting in gaps and staggered installation during actual product use, and the presence of physical buttons leading to monotonous product design and poor waterproof performance. The display module of this application addresses these issues by placing a first region 21 of the cover plate 20 on the front side S1 of the display panel 10, and a second region 22 of the cover plate 20 on the side side S2 of the display panel 10. A touchpad 30 is mounted on the second region 22, and a virtual button area is also provided on the second region 22 corresponding to the position of the touchpad 30. This facilitates the integration of the touch buttons and the cover plate 20 into one unit, improving the integrated design of the display module and reducing gaps and staggered installation. Furthermore, the touch buttons reduce the need for physical buttons with openings, further improving the waterproof performance of the entire display module, thereby extending the product's lifespan and enhancing its competitiveness.

[0048] In some embodiments, the orthographic projection of the virtual button area on the side S2 of the display panel 10 completely overlaps with the orthographic projection of the touchpad 30 on the side S2 of the display panel 10, or the orthographic projection of the virtual button area on the side S2 of the display panel 10 is located within the orthographic projection area of ​​the touchpad 30 on the side S2 of the display panel 10.

[0049] In this embodiment, the relationship between the orthographic projection of the virtual button area and the orthographic projection of the touchpad 30 is beneficial for users to realize touch operation functions.

[0050] As an alternative implementation, the display panel 10 also includes a back panel S3 opposite to the front panel S1, on which a circuit board is disposed, and the touch panel 30 is electrically connected to the circuit board to enable touch button operation.

[0051] The circuit board can be a flexible circuit board 60 (FPC).

[0052] In this embodiment, the touchpad 30 is connected to the circuit board, which facilitates the implementation of touch button operation functions in the user's touch virtual button area.

[0053] Of course, in some embodiments, the display module is assembled into a display device (e.g., a mobile phone), and the circuit board here can also be the motherboard of the display device. The touch panel 30 is connected to the motherboard of the display device to realize the touch button operation function.

[0054] In a preferred embodiment, the display module further includes a connector 70, one end of which is electrically connected to the circuit board and the other end of which is electrically connected to the touch panel 30.

[0055] Among them, connector 70 is a Board-to-Board connector (BTB connector), which is an electronic connector used to connect two circuit boards.

[0056] In a preferred embodiment, the first region 21 and the second region 22 are an integral structure, and the cover plate 20 is in a bent state. In the bent state, the first region 21 covers the front side S1 of the display panel 10, and the second region 22 is bent from the edge of the first region 21 toward the side side S2 of the display panel 10 to a position parallel to the display panel 10.

[0057] The edge of the first region 21 refers to the area of ​​the first region 21 near the edge of the front surface S1 of the display panel 10. The first region 21 can completely cover the front surface S1 of the display panel 10 (i.e., the orthographic projection of the first region 21 on the display panel 10 completely coincides with the front surface S1 of the display panel). Of course, the first region 21 can also cover a part of the front surface S1 of the display panel 10. After the second region 22 covers the remaining area of ​​the front surface S1 of the display panel 10, it is bent to any position on the side surface S2 of the display panel 10, as long as the second region 22 has a position for installing the touch panel 30 when the cover plate 20 is bent. In the embodiment of this application, the cover plate 20 is in a bent state. In actual processing, after the first region 21 of the cover plate 20 covers the front surface S1 of the display panel 10, the cover plate 20 is bent toward the side surface S2 of the display panel 10 until the angle between the second region 22 and the first region 21 is 90 degrees, so that the second region 22 can act as the middle frame of the display device and can reliably install or fix the touch panel 30 and other components.

[0058] In this embodiment, the first region 21 and the second region 22 are an integral structure. By bending, the front side S1 of the display panel 10 is covered, and the second region 22, which has the function of a middle frame, is formed. The processing is simple and avoids the risk of gaps forming when splicing the first region 21 and the second region 22. At the same time, it is conducive to the structural integration of the entire display module, reduces the design of openings, and thus improves the product's shape diversity and waterproof performance.

[0059] As a possible approach, adhesive 80 is provided between the touchpad 30 and the second area 22.

[0060] The adhesive 80 can be any non-conductive adhesive, such as, but not limited to, double-sided tape.

[0061] In this embodiment, adhesive 80 is provided between the touchpad 30 and the second region 22, which facilitates the reliable fixing of the touchpad 30 to the second region 22. The structure is simple and easy to implement, and at the same time, it does not affect the overall display module's dimensions in the width direction (e.g., ...). Figure 2 (Dimensions in the X direction).

[0062] As an option, sealant 81 is used to fill the space between the second region 22 and the side surface S2 of the display panel 10.

[0063] It is understandable that the second area 22 of the cover plate 20 is located on the side S2 of the display panel 10, and the touch panel 30 is installed on the side of the second area 22 of the cover plate 20 facing the side S2 of the display panel 10. A gap is formed between the second area 22 of the cover plate 20 and the side S2 of the display panel 10. The sealant 81 is filled in the gap, which helps to improve the sealing of the entire display module. At the same time, it provides a support between the second area 22 and the display panel 10, which helps to improve the overall strength of the display module.

[0064] In this embodiment, the sealant 81 helps to improve the sealing performance of the display module, preventing dust or moisture from affecting the display panel 10. It also enhances the overall strength of the display module, improves its reliability, extends its service life, and increases product competitiveness.

[0065] As an alternative, the second area 22 is also provided with an indicator component, the position of which corresponds to the position of the touchpad 30.

[0066] The indicator component is mainly used to indicate the position of the touchpad 30, facilitating user touch operation. The indicator component may include, but is not limited to, LEDs, color indicators, etc.

[0067] In this embodiment, the indicator component can mark the touch position, which helps users to accurately perform touch button operations during use.

[0068] In some embodiments, a polarizer 40 is further provided on the light-emitting side of the display panel 10, a first region 21 is located on the side of the polarizer 40 away from the display panel 10, and an optically transparent adhesive 50 is provided between the polarizer 40 and the first region 21.

[0069] It is understandable that the polarizer 40 is mainly used to shield ambient light emanating into the display panel 10, thereby achieving an anti-reflective effect. Typically, the polarizer 40 may include a hard coating (HC), TAC (triacetate cellulose), a polarizing layer (polyvinyl alcohol, PVA), a first photosensitive adhesive layer (Pressure Sensitive Adhesive, PSA), an ND film, and a second photosensitive adhesive layer (PSA) stacked sequentially. In actual use, the polarizer 40 also includes an upper protective film and a lower protective film. The upper protective film is placed above the hard coating, and the lower protective film is placed below the second photosensitive adhesive layer. When the polarizer 40 is installed on the cover plate 20, the lower protective film needs to be removed first, and then the second photosensitive adhesive layer is attached to the cover plate 20.

[0070] In some embodiments, the display panel 10 has a display area and a peripheral area, and the side of the second area 22 facing the display panel 10 and the side of the first area 21 located in the peripheral area facing the display panel 10 are both coated with ink 90.

[0071] In this embodiment, the ink 90 has the effects of insulation and light blocking, which helps to ensure that the display panel 10 has a good display effect.

[0072] In some embodiments, the display panel 10 includes a substrate, which may be, but is not limited to, a silicon substrate. The silicon substrate may include a silicon substrate and a driving layer, a display layer, a polarizer 40, etc., and a cover plate 20 stacked on the silicon substrate in a direction away from the silicon substrate.

[0073] The driving layer may include multiple pixel driving circuits arranged in an array. Each pixel driving circuit may include multiple transistors and capacitors, among other electronic components. For example, each pixel driving circuit may include three transistors and one capacitor, forming a 3T1C (i.e., one driving transistor, two switching transistors, and one capacitor). It may also include more than three transistors and at least one capacitor, such as 4T1C (i.e., one driving transistor, three switching transistors, and one capacitor), 5T1C (i.e., one driving transistor, four switching transistors, and one capacitor), or 7T1C (i.e., one driving transistor, six switching transistors, and one capacitor), etc. The transistors may be thin-film transistors (TFTs).

[0074] It is understood that a thin-film transistor (TFT) may include a control electrode, a first electrode, and a second electrode. The control electrode is the gate of the TFT, the first electrode is one of the source and drain of the TFT, and the second electrode is the other of the source and drain of the TFT.

[0075] In some embodiments, the driving layer may include an active layer, a first gate metal layer (Gate1), a second gate metal layer (Gate2), a first metal trace layer (SD1), and a second metal trace layer (SD2). These layers are configured to form thin-film transistors, capacitors, and multiple signal lines for pixel driving in a pixel driving circuit. For example, the multiple signal lines may include power signal lines, data signal lines, reset signal lines, scan signal lines, enable signal lines, and initialization signal lines, etc. The driving layer may also include insulating layers that space these layers apart.

[0076] The display layer may include a light-emitting device layer and an encapsulation layer. The light-emitting device layer is stacked on the side of the driving layer away from the substrate. The light-emitting device layer may include a pixel definition layer and multiple light-emitting devices. The pixel definition layer has multiple pixel openings, and each pixel opening defines the position of a light-emitting device to form a sub-pixel. For example, the light-emitting device may be an OLED light-emitting device or a QLED light-emitting device. Taking an OLED light-emitting device as an example, along the direction away from the substrate, the light-emitting device may include a first electrode, a light-emitting layer, and a second electrode stacked sequentially. Of course, the light-emitting device may also include at least one of a hole injection layer, a hole transport layer, and an electron blocking layer disposed between the first electrode and the light-emitting layer, and at least one of an electron injection layer, an electron transport layer, and a hole blocking layer disposed between the second electrode and the light-emitting layer; in some embodiments, the first electrode may be an anode layer, and the second electrode may be a cathode layer. The anode layer may be a composite structure composed of a transparent conductive oxide film / metal film / transparent conductive oxide film stacked sequentially. The transparent conductive oxide film is made of materials such as ITO (Indium Tin Oxide) and IZO (Indium Zinc Oxide), and the metal film is made of materials such as gold (Au), silver (Ag), nickel (Ni), and platinum (Pt). For example, the anode layer can also be a single-layer structure, and the material of the single-layer structure can be any of ITO, IZO, Au, Ag, Ni, and Pt. Each pixel opening exposes a portion of the anode layer of the corresponding light-emitting device, and at least a portion of the light-emitting layer is located within the corresponding pixel opening, forming an electrical connection with the corresponding anode layer. For example, the cathode layers of each light-emitting device can be electrically connected to each other, forming a single structure. For example, the cathode layer material can be any of aluminum (Al), silver (Ag), and magnesium (Mg), or any of magnesium-silver alloys and aluminum-lithium alloys.

[0077] An encapsulation layer is disposed on the side of the light-emitting device layer away from the substrate to protect the light-emitting device. The encapsulation layer may include a first inorganic encapsulation layer, an organic encapsulation layer, and a second inorganic encapsulation layer. For example, the first and second inorganic encapsulation layers may be made of inorganic materials such as nitrides, oxides, oxynitrides, nitrates, carbides, or any combination thereof, and the fabrication process may employ chemical vapor deposition (CVD), such as plasma-enhanced chemical vapor deposition (PECVD). For example, the organic insulating layer may be made of materials such as acrylic fiber, hexamethyldisiloxane, polyacrylates, polycarbonate, or polystyrene, and the fabrication process may employ inkjet printing (IJP).

[0078] In some embodiments, the display module further includes a back film and a heat dissipation film 91, which are stacked on the backlight side of the display panel 10 along a direction away from the display panel 10.

[0079] The back film can be a U-Film film, which is attached to the backlight side of the display panel 10 and is mainly used to protect and support the display panel 10. The back film may include an acrylic film (Acryl film) and a polyethylene terephthalate film (PET film) stacked together.

[0080] The heat dissipation film 91 is located on the side of the back film away from the display panel 10. The heat dissipation film 91 can be a superclean foam (SCF) composite film; of course, the heat dissipation film 91 can also adopt a multi-layer stacked structure, wherein the heat dissipation film 91 includes a metal layer, the metal has heat dissipation and electrical conductivity, and the metal layer can generally be copper (Cu) or aluminum (Al); the heat dissipation film 91 can also include an adhesive layer and a functional layer located between the adhesive layer and the metal layer. The adhesive layer is used to bond the heat dissipation film 91 to the backlight side of the display panel 10. The adhesive layer can be embossing (EMBO) or other adhesive materials. EMBO helps to reduce air bubbles generated when bonding with the display panel 10, thereby enhancing the connection strength between the display panel 10 and the heat dissipation film 91. In actual use, a protective film layer is provided on the adhesive layer of the heat dissipation film 91 on the side opposite to the metal layer to protect the heat dissipation film 91. When using the heat dissipation film 91, the protective film layer needs to be peeled off first. The functional layer has stress buffering performance and can buffer the stress and impact applied to the display panel 10 from the outside. Specifically, the functional layer may include a foam layer, which is disposed on the side of the adhesive layer close to the metal layer. The material of the foam layer can be polyurethane (PU) or other materials. In some other embodiments, the functional layer may also include a support layer, which is disposed on the side of the foam layer close to the metal layer and plays a supporting and impact-resistant role. The support layer can be black to enhance the all-black effect of the product. The support layer can be black PI (Polyimide).

[0081] In summary, the display module of this application, by setting the first area 21 of the cover plate 20 on the front side S1 of the display panel 10, setting the second area 22 of the cover plate 20 on the side side S2 of the display panel 10, and mounting the touch panel 30 on the second area 22, and also setting virtual buttons on the second area 22 corresponding to the position of the touch panel 30, is conducive to integrating the touch buttons and the cover plate 20 into one, improving the integrated design of the display module, and reducing step differences and gaps; furthermore, by setting the touch buttons, it is beneficial to reduce the setting of physical buttons with openings, which is conducive to further improving the waterproof performance of the entire display module, thereby improving the service life of the product and enhancing the product competitiveness;

[0082] Furthermore, sealant 81 is filled in the gap between the second region 22 of the cover plate 20 and the side S2 of the display panel 10, which helps to further improve the structural strength and sealing of the entire display module, thereby improving product reliability and service life.

[0083] Secondly, this utility model provides a display device, including the display module of the first aspect. It is understood that this display device possesses all the features and advantages of the aforementioned display module, which will not be repeated here. In summary, this display device has high quality and yield, and high display resolution.

[0084] A display device is a product with image display capabilities. For example, a display device can be any of the following: monitor, television, billboard, digital photo frame, laser printer with display function, telephone, mobile phone, personal digital assistant (PDA), digital camera, portable camcorder, viewfinder, navigator, vehicle, large-area wall, home appliance, information query equipment (such as business query equipment for e-government, banks, hospitals, power companies, etc.), monitor, etc. A display device can also be a microdisplay or a product containing a microdisplay. Products containing microdisplays can be any of the following: smartwatch, smart bracelet, helmet display, stereoscopic display, and AR devices (such as AR glasses), VR devices (such as VR glasses), etc. For example, a microdisplay can be a display with a display size ranging from approximately 0.2 inches to approximately 2.5 inches, but is not limited to this. Understandably, a microdisplay can also be a display with a smaller display size, such as a display size less than or equal to 0.2 inches.

[0085] In a preferred embodiment, the display device is a mobile phone, and the second region 22 is configured as a portion of the mobile phone's frame.

[0086] Understandably, the mid-frame of a mobile phone is primarily used to install and secure the phone's buttons, SIM card slot, microphone, battery, motherboard, and other structures. The second area 22 of the cover plate 20 is configured as part of the mid-frame. The touchpad 30 in the second area 22 can replace the volume buttons and / or power button, and can also be used to secure the display panel 10 and other structures. This reduces the step differences and gaps caused by separate installation of the mid-frame, cover plate 20, and buttons, and reduces the need for openings due to physical buttons, further improving the phone's waterproof performance. At the same time, the position of the touchpad 30 can be adjusted arbitrarily according to product aesthetic requirements and user habits, thereby enhancing the overall design diversity of the mobile phone.

[0087] It is also understandable that the mid-frame is generally made of metal. In the embodiments of this application, the second area 22 of the cover plate 20 replaces part of the mid-frame, which is beneficial to improving space utilization. At the same time, the glass cover plate 20 is beneficial to improving the signal performance of the mobile phone.

[0088] For example, such as Figure 3-4As shown, the display device includes a display panel 10. A heat dissipation film 91 is provided on the back side S3 of the display panel 10. A flexible circuit board 60 is located on the back side S3 of the display panel 10 and is bonded to the display panel 10. The display panel 10 is bonded to the main control board 210 of the display device. A polarizer 40 and a cover plate 20 are provided on the front side S1 of the display panel 10. The display device has a first side B1, a second side B2, a third side B3, and a fourth side B4. The second area 22 of the cover plate 20 is located on the first side B1, the second side B2, and the third side B3, respectively. A touch panel 30 is provided on the second area 22 corresponding to the areas of the first side B1, the second side B2, and the third side B3. The touch panel 30 is used to realize volume adjustment and power switch. The fourth side B4 of the display device uses a metal frame to house the SIM card slot, microphone, etc.

[0089] It should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer" used above to indicate orientation or positional relationships are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the panel or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.

[0090] The above description is merely a preferred embodiment of this application and an explanation of the technical principles employed. Those skilled in the art should understand that the scope of the utility model involved in this application is not limited to the technical solutions formed by specific combinations of the above-described technical features, but should also cover other technical solutions formed by arbitrary combinations of the above-described technical features or their equivalents without departing from the inventive concept. For example, technical solutions formed by substituting the above features with (but not limited to) technical features with similar functions disclosed in this application.

Claims

1. A display module, characterized in that, include: The display panel includes a front surface perpendicular to the light emission direction and a side surface located around the front surface; A cover plate, the cover plate including a first region and a second region, the first region being located on the front of the display panel and the second region being located on the side of the display panel; A touchpad is located on at least one side of the display panel, and the touchpad is installed on the side of the second region facing the display panel. The side of the second region away from the display panel is provided with a virtual button area for touch operation, and the virtual button area corresponds to the position of the touchpad.

2. The display module according to claim 1, characterized in that, The display panel also includes a back side opposite to the front side, and a circuit board is disposed on the back side. The touch panel is electrically connected to the circuit board to realize touch button operation.

3. The display module according to claim 2, characterized in that, The display module also includes a connector, one end of which is electrically connected to the circuit board and the other end of which is electrically connected to the touchpad.

4. The display module according to claim 1, characterized in that, The first region and the second region are an integral structure. The cover plate has a bent state. In the bent state, the first region covers the front of the display panel, and the second region is bent from the edge of the first region toward the side of the display panel to a position parallel to the display panel.

5. The display module according to claim 1, characterized in that, An adhesive is provided between the touch panel and the second area.

6. The display module according to claim 1, characterized in that, The second area is filled with sealant between itself and the side of the display panel.

7. The display module according to claim 1, characterized in that, The second area is also provided with an indicator component, the position of which corresponds to the position of the touchpad.

8. The display module according to any one of claims 1-7, characterized in that, A polarizer is also provided on the light-emitting side of the display panel. The first region is located on the side of the polarizer away from the display panel, and an optically transparent adhesive is provided between the polarizer and the first region.

9. The display module according to any one of claims 1-7, characterized in that, The display panel has a display area and a peripheral area, and the side of the second area facing the display panel and the side of the first area located in the peripheral area facing the display panel are both coated with ink.

10. The display module according to any one of claims 1-7, characterized in that, The display module also includes a heat dissipation film, which is disposed on the backlight side of the display panel.

11. A display device, characterized in that, Includes the display module according to any one of claims 1-10.

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