Terminal device

Abstract

Disclosed in the present application is a terminal device, which comprises a display structure, a shielding structure and an antenna. A second portion of the shielding structure is disposed on the periphery of a side face of the display structure, and the second portion is located between a radiator of the antenna and the side face, such that signal isolation is implemented, thereby reducing absorption loss of the antenna caused by the display structure. The present application facilitates the implementation of the miniaturization and high screen-to-body ratio of a terminal device, and can ensure the performance of an antenna.

Description

terminal equipment

[0001] This application claims priority to the Chinese patent application filed with the State Intellectual Property Office of China on November 27, 2023, with application number 202311604085.X, and priority to the Chinese patent application with the invention name “Terminal Device”, all contents of which are incorporated by reference into this application. Technical Field

[0002] The present invention relates to the technical field of radio frequency communications, and in particular to a terminal device. Background Art

[0003] Terminal devices are small in size and compactly stacked, and have been pursuing miniaturization, lightness, and a large screen-to-body ratio to achieve better appearance and texture. Devices with poor conductivity and high loss are inevitably present near the terminal antenna, which are called lossy devices. Taking watches and mobile phones as examples, the screen is a typical example of lossy devices. Lossy devices will cause the antenna radiation efficiency to be absorbed, significantly reducing antenna performance. The closer the lossy device is to the antenna radiator, the smaller the antenna clearance, and the greater the degradation of antenna performance caused by the lossy device. Antenna design generally adopts the method of moving the radiator away from the lossy device to reduce absorption, but this method is becoming increasingly passive due to the design requirements of a large screen-to-body ratio.

[0004] Therefore, new antenna design technologies are urgently needed to solve the antenna design problems faced by miniaturized terminal devices with large screen ratios. Summary of the Invention

[0005] The present application provides a terminal device, which is conducive to achieving miniaturization and a large screen-to-body ratio of the terminal device, and can reduce the absorption loss of the display module to the antenna in the terminal device, thereby ensuring the performance of the antenna.

[0006] In a first aspect, an embodiment of the present application provides a terminal device, which includes a display structure, a shielding structure, and an antenna. The display structure includes a first surface, a second surface, and a side surface. The first surface and the second surface are arranged opposite to each other, and the side surface and the first surface have different orientations. Specifically, the side surface faces the frame of the terminal device, and the side surface can be connected between the first surface and the second surface. At least a portion of the first surface constitutes the display surface of the screen of the terminal device. The shielding structure includes a conductive material. The shielding structure includes a first part and a second part. The first part is located on the side of the second surface facing away from the first surface. The first part covers at least a portion of the second surface. The second part is located on the periphery of the side surface and is arranged opposite to at least a portion of the side surface. The antenna includes a radiator, which is located on the periphery of the side surface. The second part is located between the radiator and the side surface to achieve at least partial signal isolation between the radiator and the display structure. In a direction perpendicular to the side surface, the distance between the radiator and the second part is greater than the distance between the second part and the side surface.

[0007] The embodiment of the present application can reduce the absorption loss of the display structure to the terminal device by disposing the shielding structure on the periphery of the display structure, with the first part of the shielding structure covering the second surface, and the second part being disposed on the periphery of the side surface and facing the side surface. Specifically, the second part of the shielding structure is disposed on the periphery of the side surface of the display structure and is located between the side surface and the radiator. Since the shielding structure includes a conductive material, the conductive material of the second part can isolate the signal between the side surface and the antenna radiator. It can be understood that the presence of the second part can reduce the signal of the antenna radiator from being coupled to the display structure, thereby solving the problem of the display structure's absorption loss to the antenna. Without the second part, due to the conductive material in the display structure, the signal of the antenna radiator will be coupled to the display structure, and the display structure will be stimulated to generate current, and the display structure will absorb part of the signal of the antenna radiator, resulting in absorption loss.

[0008] In one possible implementation, the second portion and the first portion are interconnected to form a one-piece membrane or plate-like structure with a folded edge. This solution defines the interconnection between the second portion and the first portion, allowing the shielding structure to form a one-piece membrane or plate-like structure. The connection between the first and second portions forms a shielding cover, providing shielding for the display structure. This helps reduce absorption losses in the display structure and improve antenna performance.

[0009] In one possible implementation, the first part is attached to the second surface, the first direction is a direction perpendicular to the second surface, in the first direction, the vertical distance between the first surface and the second surface is a first dimension, the height by which the top of the second part protrudes relative to the first part is a second dimension, the first dimension is less than or equal to the second dimension, and the top of the second part is the end of the second part away from the first part. This solution constrains the height by which the top of the second part protrudes relative to the first part to be greater than the vertical distance between the first surface and the second surface, so that the top of the second part is positioned above the first surface in the first direction, thereby achieving the height by which the second part protrudes relative to the first part protruding beyond the first surface of the display structure, and achieving complete shielding of the display structure by the second part on the periphery of the side surface in a direction perpendicular to the side surface. This solution is beneficial in reducing the absorption loss of the display structure and improving the performance of the antenna.

[0010] In one possible implementation, the terminal device includes a cover plate and a side frame, the radiator being at least a portion of the side frame. The cover plate is laminated and disposed outside the first surface of the display structure and connected to the side frame. The inner surface of the cover plate is provided with an ink layer, which is disposed along the edge of the first surface and the periphery of the edge. A gap is formed between the top of the second portion and the ink layer. This solution, by forming a gap between the top of the second portion and the ink layer, prevents the second portion from scratching the ink layer during assembly of the shielding structure, thereby ensuring the safety of the ink layer and preventing it from being scratched.

[0011] In one possible implementation, a gap is provided between the second portion and the side surface of the display structure. This solution provides a design solution in which the shielding structure is a shield cover independent of the display structure. By forming a gap between the second portion and the side surface, the second portion is prevented from scraping the side surface during assembly of the shielding structure and the display structure. The side surface of the display structure is a location of stress concentration, and scraping by the second portion can easily cause cracks on the edge of the display structure. Therefore, this solution helps ensure the safety of the display structure.

[0012] In one possible implementation, based on a scheme of maintaining a gap between the second part and the side, the shielding structure is designed as a separate shielding cover structure, and the terminal device also includes a near-field communication (NFC) antenna. The near-field communication (NFC) antenna is adhered to the second side of the display structure, and the first part of the shielding structure is adhered to the second side, and the near-field communication (NFC) antenna is clamped between the first part and the second side. The FPC of the display structure is led out from the opening position formed by the second part, and the FPC is stacked on the surface of the first part facing away from the display structure.

[0013] In one possible implementation, the second portion adheres to the side of the display structure. This solution provides a design solution in which a shielding structure is formed by spraying a coating or membrane structure onto the outer surface of the display structure. In this solution, the second portion adheres to the side, which helps reduce the volume of the shielding structure and display structure, increases antenna clearance, and improves antenna performance.

[0014] In one possible implementation, the shielding structure is designed to be sprayed on the second surface and side of the display structure by spraying metal material. The metal material sprayed on the side constitutes the second part of the shielding structure. In this solution, the display structure and the cover plate (protective layer, such as glass, sapphire, etc.) of the terminal device are bonded by optical glue. The edge of the cover plate exceeds the edge of the display structure. The top of the second part covers part of the inner surface of the cover plate. The width of the second part covering the inner surface of the cover plate is controlled within 0.2 mm to ensure good clearance of the antenna.

[0015] In one possible implementation, the second side of the display structure is bonded to the NFC antenna, the FPC of the display structure is stacked on the second side, and the near-field communication (NFC) antenna is clamped between the FPC and the second side. The first part of the shielding structure is sprayed on the outer surface of the FPC, but it is necessary to ensure that the connector of the FPC is exposed. The first part does not cover the connector of the FPC so that the connector of the FPC can be electrically connected to the chip on the motherboard of the terminal device.

[0016] In one possible implementation, the display structure includes a display layer and a touch layer, the touch layer and the display layer being stacked, the display layer positioned between the touch layer and the first portion, and the vertical distance between the surface of the touch layer distal from the display layer and the first portion being less than or equal to the height of the second portion's top protruding from the first portion, where the top of the second portion is the end distal from the first portion. This solution refines the display structure into the display layer and the touch layer, constraining the height of the second portion to be greater than or equal to the thickness of the display layer, thereby reducing signal coupling by shielding the display layer.

[0017] In one possible implementation, the display structure includes a display layer and a touch layer, the touch layer and the display layer being stacked, with the display layer positioned between the touch layer and the first portion. In a direction perpendicular to the side surface, the edge of the touch layer is recessed relative to the edge of the display layer, and the distance between the edge of the touch layer and the second portion is greater than the distance between the side surface and the second portion. This solution, based on the provision of a shielding structure, retracts the edge of the touch layer relative to the edge of the display layer. This retracted touch layer can further reduce absorption losses in the display structure.

[0018] In one possible implementation, the edge of the touch layer is recessed from the edge of the display layer by 0.5mm-1mm. By limiting the retraction range of the touch layer, this solution not only ensures that the touch function of the touch layer itself is not affected, but also provides an appropriate range to reduce absorption loss.

[0019] In one possible implementation, a spacer layer structure is provided between the touch layer and the display layer, and the thickness of the spacer layer structure is 0.3 mm. The provision of the spacer layer and the restriction of its thickness facilitate the manufacturing process of the display structure and ensure product yield.

[0020] In one possible implementation, the vertical distance between the surface of the touch layer distal from the display layer and the first portion is less than or equal to the height by which the top of the second portion protrudes relative to the first portion. The top of the second portion is the end distal from the first portion. This solution improves shielding effectiveness by limiting the height by which the second portion protrudes beyond the touch layer.

[0021] In one possible implementation, the conductive material of the shielding structure is at least one of stainless steel, silver paste, copper, and conductive cloth, or a combination of at least two. This solution provides a variety of shielding structure materials, making the shielding structure easy to manufacture and implement, and using these materials can also ensure the effect of reducing absorption loss of the display structure.

[0022] In one possible implementation, the second portion connects to the edge of the first portion, forming a surrounding structure with an opening. The surrounding structure surrounds the first portion, and the opening is used to clear components within the terminal device. This solution uses the second portion to form an opening, which can be used to clear other components within the terminal device, such as an FPC, thereby facilitating a thinner design for the terminal device.

[0023] In a second aspect, the present application provides a terminal device comprising a display structure and an antenna, wherein the display structure comprises a first surface and a second surface disposed opposite each other, and a side surface connected between the first surface and the second surface, wherein at least a portion of the first surface constitutes the display surface of the screen of the terminal device, and the display structure comprises a display layer and a touch layer disposed in a stacked manner, wherein an edge of the touch layer is retracted relative to an edge of the display layer. The antenna comprises a radiator, wherein the radiator is located at the periphery of the side surface and is spaced apart from the display structure, and in a direction perpendicular to the side surface, the distance between the radiator and the edge of the touch layer is greater than the distance between the radiator and the edge of the display layer.

[0024] This solution reduces the coupling of the display structure to the antenna's radiator signal by the display structure by retracting the edge of the touch layer compared to the edge of the display layer, thereby improving the performance of the antenna. Specifically, the touch circuits within the touch layer are interwoven and the distance between the edge of the touch layer and the radiator is increased, which can reduce the antenna signal coupled to the touch layer. Therefore, this solution can reduce the display structure's absorption loss of the antenna signal.

[0025] In one possible implementation, the edge of the touch layer is recessed from the edge of the display layer by 0.5mm-1mm. By limiting the retraction range of the touch layer, this solution not only ensures that the touch function of the touch layer itself is not affected, but also provides an appropriate range to reduce absorption loss.

[0026] In one possible implementation, the terminal device further includes a shielding structure, the shielding structure includes a conductive material, and a portion of the shielding structure is located between the side surface and the radiator, for isolating at least part of the signal between the radiator and the display structure. This solution can reduce the absorption loss of the display structure to the terminal device by providing a shielding structure, and a portion of the shielding structure is provided between the side surface and the radiator. Specifically, the partial shielding structure is provided on the periphery of the side surface of the display structure and between the side surface and the radiator. Since the shielding structure includes a conductive material, the conductive material can isolate the signal between the side surface and the antenna radiator. It can be understood that the presence of the partial shielding structure can reduce the signal of the antenna radiator from being coupled to the display structure, thereby solving the problem of the display structure absorbing the antenna. Without this partial shielding structure, due to the conductive material in the display structure, the signal of the antenna radiator will be coupled to the display structure, and the display structure will be stimulated to generate current, and the display structure will absorb part of the signal of the antenna radiator, resulting in absorption loss.

[0027] In one possible implementation, the shielding structure includes a first part and a second part, the first part is connected to the second surface and covers at least a portion of the second surface, and the second part is located on the periphery of the side surface; there is a gap between the second part and the side surface of the display structure; or, the second part is attached to the side surface of the display structure. This solution is advantageous in ensuring the safety of the display structure by forming a gap between the second part and the side surface of the display structure. During the assembly of the shielding structure and the display structure, the second part is prevented from scratching the side surface. The side surface of the display structure is a location where stress is concentrated, and scratches by the second part are likely to cause cracks on the edge of the display structure. This solution is advantageous in reducing the volume of the shielding structure and the display structure by designing that the second part is attached to the side surface of the display structure, and can also expand the clearance of the antenna, which is advantageous in improving the performance of the antenna.

[0028] In one possible implementation, the shielding structure is designed to be sprayed on the second surface and side of the display structure by spraying metal material. The metal material sprayed on the side constitutes the second part of the shielding structure. In this solution, the display structure and the cover plate (protective layer, such as glass, sapphire, etc.) of the terminal device are bonded by optical glue. The edge of the cover plate exceeds the edge of the display structure. The top of the second part covers part of the inner surface of the cover plate. The width of the second part covering the inner surface of the cover plate is controlled within 0.2 mm to ensure good clearance of the antenna.

[0029] In one possible implementation, based on a scheme of maintaining a gap between the second part and the side, the shielding structure is designed as a separate shielding cover structure, and the terminal device also includes a near-field communication (NFC) antenna. The near-field communication (NFC) antenna is adhered to the second side of the display structure, and the first part of the shielding structure is adhered to the second side, and the near-field communication (NFC) antenna is clamped between the first part and the second side. The FPC of the display structure is led out from the opening position formed by the second part, and the FPC is stacked on the surface of the first part facing away from the display structure.

[0030] In one possible implementation, the vertical distance between the surface of the touch layer distal from the display layer and the first portion is less than the height by which the top of the second portion protrudes relative to the first portion. The top of the second portion is the end distal from the first portion. This solution improves shielding effectiveness by limiting the height by which the second portion protrudes beyond the touch layer.

[0031] In a third aspect, the present application provides a terminal device comprising a display structure and an antenna. The display structure comprises a first and second surfaces disposed opposite each other, and a side surface connected between the first and second surfaces. At least a portion of the first surface constitutes the display surface of the terminal device's screen. The display structure comprises a substrate, a main structure, and an edge structure. The substrate comprises a top and bottom surfaces disposed opposite each other. The main structure and the edge structure are formed on the top surface of the substrate. The main structure comprises a display layer and a touch layer stacked in a direction perpendicular to the top surface. The edge structure at least partially surrounds the periphery of the main structure. The edge structure comprises a shielding wall that covers at least a portion of the main structure in a direction perpendicular to the side surface. The antenna comprises a radiator located at the periphery of the side surface and spaced apart from the display structure. The shielding wall is located between the radiator and the main structure in a direction perpendicular to the side surface to achieve at least partial signal isolation between the radiator and the main structure. The distance between the radiator and the shielding wall is greater than the distance between the shielding wall and the main structure.

[0032] This solution integrates the shielding wall into the display structure through the same manufacturing process as the display structure. This eliminates the need for additional assembly and reduces the risk of damage to the display structure during assembly. Furthermore, the shielding wall is closer to the main body of the display structure, providing clearance for the antenna and improving antenna performance.

[0033] In one possible implementation, the edge structure includes an isolation portion, and the isolation portion is located between the shielding wall and the main structure. The isolation portion specifically contains a storage space, and the storage space is used to contain the conductive material that flows from the main structure into the isolation portion during the manufacturing process of the main structure. In a specific embodiment, during the manufacturing process of the main structure, the conductive material can be printed on the substrate through a manufacturing process such as spraying and printing. Since the conductive material is in liquid form during the manufacturing process, it has fluidity. This solution sets an isolation portion in the area between the shielding wall and the edge of the main structure. The isolation portion is similar to a dam structure, which can prevent the conductive material from flowing to the position of the shielding wall.

[0034] In one possible implementation, the display structure further includes a shielding layer, located on one side of the bottom surface of the substrate and covering at least a portion of the main structure. The shielding layer is disposed between the circuit board and the display structure, and can reduce signal loss caused by the display structure absorbing signals from radio frequency circuits on the circuit board.

[0035] In a possible implementation, the shielding layer is electrically connected to the shielding wall through a via hole on the substrate.

[0036] In one possible implementation, the shielding wall constitutes a surrounding structure with an opening, the display structure includes an edge trace, the edge trace is stacked on a side of the edge structure away from the substrate, the edge trace is electrically connected to the main structure, and the edge trace passes through the opening and extends to the periphery of the edge structure.

[0037] In a fourth aspect, an embodiment of the present application provides a display module, which includes a display structure and a shielding structure. The display structure includes a first surface and a second surface arranged opposite to each other, and a side surface connected between the first surface and the second surface, at least a portion of the first surface constitutes the display surface of the screen of the terminal device; the shielding structure includes a conductive material, and the shielding structure includes a first part and a second part, the first part is connected to the second surface and covers at least a portion of the second surface, and the second part is located on the periphery of the side surface and is spaced opposite to the side surface; the second part is used to achieve at least partial signal isolation between the display structure and the radiator of the antenna of the terminal device.

[0038] In a fifth aspect, an embodiment of the present application provides a display module, which includes a first surface and a second surface arranged opposite to each other, and a side surface connected between the first surface and the second surface, at least a portion of the first surface constitutes the display surface of the screen of the terminal device, and the display module includes a display layer and a touch layer arranged in a stacked manner, and the edge of the touch layer is retracted compared to the edge of the display layer.

[0039] In the sixth aspect, an embodiment of the present application provides a display module, which includes a first surface and a second surface arranged opposite to each other, and a side surface connected between the first surface and the second surface, at least a portion of the first surface constitutes the display surface of the screen of the terminal device, the display module includes a substrate, a main structure and an edge structure, the substrate includes a top surface and a bottom surface arranged opposite to each other, the main structure and the edge structure are formed on the top surface of the substrate, the main structure includes a display layer and a touch layer stacked in a direction perpendicular to the top surface, the edge structure is at least partially arranged around the periphery of the main structure, the edge structure includes a shielding wall, and the shielding wall covers at least a portion of the main structure in a direction perpendicular to the side surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0040] FIG1 is a partial schematic diagram of a terminal device provided in one embodiment of the present application;

[0041] FIG2 is a partial schematic diagram of a terminal device provided in one embodiment of the present application;

[0042] FIG3 is a schematic diagram of a plane where a display screen of a terminal device is located, provided in one embodiment of the present application;

[0043] FIG4 is a schematic diagram of a plane where a display screen of a terminal device is located, provided in one embodiment of the present application;

[0044] FIG5 is a schematic diagram of a terminal device provided in one embodiment of the present application;

[0045] FIG6 is a schematic diagram of a terminal device provided in one embodiment of the present application;

[0046] FIG7A is a schematic diagram of a terminal device provided in one embodiment of the present application;

[0047] FIG7B is a partially enlarged schematic diagram of a terminal device provided in one embodiment of the present application;

[0048] FIG7C is a partially enlarged schematic diagram of a terminal device provided in one embodiment of the present application;

[0049] FIG8 is a schematic diagram of a specific structural design between a display structure and a shielding structure in a terminal device provided in one embodiment of the present application;

[0050] FIG9A is a schematic diagram of a specific structural design between a display structure and a shielding structure in a terminal device provided in one embodiment of the present application;

[0051] FIG9B is a schematic diagram of a specific structural design between a display structure and a shielding structure in a terminal device provided in one embodiment of the present application;

[0052] FIG10 is a schematic diagram of a terminal device provided in one embodiment of the present application;

[0053] FIG11 is a partially enlarged schematic diagram of a display structure provided by an embodiment of the terminal device shown in FIG10 ;

[0054] FIG12 is a plan view of a display structure provided by an embodiment of the terminal device shown in FIG10 ;

[0055] FIG13 is a schematic diagram of a terminal device provided in one embodiment of the present application;

[0056] FIG14 is a cross-sectional view of the terminal device shown in FIG13;

[0057] FIG15 is an enlarged schematic diagram of part I in FIG14;

[0058] FIG16 is a perspective schematic diagram of the shielding structure in the terminal device shown in FIG13;

[0059] FIG17 is an enlarged schematic diagram of part II in FIG16;

[0060] FIG18 is a schematic diagram of a terminal device provided in one embodiment of the present application;

[0061] FIG19 is a cross-sectional view of the terminal device shown in FIG18;

[0062] FIG20 is an enlarged schematic diagram of part III in FIG19;

[0063] FIG21 is a perspective schematic diagram of a shielding structure in the terminal device shown in FIG18 ;

[0064] FIG22 is an enlarged schematic diagram of part IV in FIG21;

[0065] FIG23A is a schematic diagram of the structures of five different test schemes;

[0066] FIG23B is a simulation graph showing the absorption loss of the radiator generated by the five solutions shown in FIG23A;

[0067] FIG24 is a curve comparison diagram of absorption loss generated by materials with different structures based on the fourth solution shown in FIG23A ;

[0068] FIG25 is a curve comparison diagram of absorption loss generated by materials with different structures based on the fifth solution shown in FIG23A ;

[0069] FIG26 is a schematic diagram of antenna current and electric field distribution in the second solution in FIG23A ;

[0070] FIG27 is a schematic diagram of antenna current and electric field distribution in Scheme 5 in FIG23A ;

[0071] FIG28 is a comparison of an S11 curve diagram of an antenna system in a scheme with a shielding structure and an S11 curve diagram of an antenna system of a terminal device without a shielding structure in a specific embodiment of the present application;

[0072] FIG29 is a graph comparing the radiation efficiency of an antenna system with a shielding structure and the radiation efficiency of an antenna system of a terminal device without a shielding structure in a specific embodiment of the present application;

[0073] FIG30 is a comparison of an S11 curve of an antenna system in a solution with a retracted touch layer edge and an S11 curve of an antenna system in a solution without a retracted touch layer in a display structure according to a specific embodiment of the present application;

[0074] FIG31 is a graph comparing the radiation efficiency of an antenna system in a solution with a retracted touch layer edge and a solution without a retracted touch layer in a specific embodiment of the present application;

[0075] FIG32 is a comparison of an S11 curve of an antenna system in a solution with a shielding structure and a retracted edge of a touch layer in a specific embodiment of the present application and an S11 curve of an antenna system in a solution without a shielding structure and a retracted touch layer in a display structure;

[0076] FIG33 is a graph comparing the radiation efficiency of the antenna system in a solution with a shielding structure and a retracted edge of the touch layer in a specific embodiment of the present application and the radiation efficiency of the antenna system in a solution without a shielding structure and without a retracted touch layer. DETAILED DESCRIPTION

[0077] Explanation of terms:

[0078] Radiator (or antenna branch): It is a device in the antenna used to receive / send electromagnetic wave radiation. In some cases, "antenna" is understood in a narrow sense as a radiator (or antenna branch), which converts the guided wave energy from the transmitter into radio waves, or converts radio waves into guided wave energy, which is used to radiate and receive radio waves. The modulated high-frequency current energy (or guided wave energy) generated by the transmitter is transmitted to the transmitting radiator (or antenna branch) via the feeder line, and is converted into a certain polarized electromagnetic wave energy by the radiator (or antenna branch) and radiated in the desired direction. The receiving radiator (or antenna branch) converts the electromagnetic wave energy of a certain polarization from a specific direction in space into modulated high-frequency current energy, which is transmitted to the receiver input via the feeder line.

[0079] The radiator (or antenna branch) may include a conductor having a specific shape and size, such as a linear or sheet-like shape, and the present application does not limit the specific shape. In one embodiment, the linear radiator (or antenna branch) may be simply referred to as a linear antenna. In one embodiment, the linear radiator may be implemented by a conductive frame, and may also be referred to as a frame antenna. In one embodiment, the linear radiator (or antenna branch) may be implemented by a bracket conductor, and may also be referred to as a bracket antenna. In one embodiment, the linear radiator, or the radiator of the linear antenna, has a wire diameter (e.g., including thickness and width) much smaller than the wavelength (e.g., the wavelength of the medium) (e.g., less than 1 / 16 of the wavelength), and a length comparable to the wavelength (e.g., the wavelength of the medium) (e.g., the length is approximately 1 / 8 of the wavelength, or 1 / 8 to 1 / 4, or 1 / 4 to 1 / 2, or longer). The main forms of linear antennas include dipole antennas, half-wave dipole antennas, monopole antennas, loop antennas, inverted F antennas (also known as IFAs), and planar inverted F antennas (also known as PIFAs). For example, for a dipole antenna, each dipole antenna generally includes two radiating branches, and each branch is fed by a feeding portion from the feeding end of the radiating branch. For example, an inverted-F antenna (IFA) can be regarded as a monopole antenna with a ground path added. The IFA antenna has a feeding point and a grounding point, and is called an inverted-F antenna because its side view is an inverted F shape. In one embodiment, the sheet radiator (or antenna branch) may include a microstrip antenna, or a patch antenna. In one embodiment, the sheet radiator (or antenna branch) may be implemented by a planar conductor (such as a conductive sheet or a conductive coating, etc.). In one embodiment, the sheet radiator (or antenna branch) may include a conductive sheet, such as a copper sheet, etc. In one embodiment, the sheet radiator (or antenna branch) may include a conductive coating, such as a silver paste, etc. The shapes of the sheet radiator include circular, rectangular, annular, etc., and the present application does not limit the specific shape. The structure of a microstrip antenna generally consists of a dielectric substrate, a radiator (or antenna branch), and a ground plane, wherein the dielectric substrate is disposed between the radiator (or antenna branch) and the ground plane.

[0080] The radiator (or antenna branch) may also include a slot or slot formed in a conductor, for example, a closed or semi-closed slot or slot formed in a grounded conductor surface. In one embodiment, a slotted or slotted radiator may be referred to as a slot antenna or slot antenna. In one embodiment, the radial dimension (e.g., including the width) of the slot or slot of the slot antenna / slot antenna is much smaller than the wavelength (e.g., the dielectric wavelength) (e.g., less than 1 / 16 of the wavelength), and the length dimension is comparable to the wavelength (e.g., the dielectric wavelength) (e.g., approximately 1 / 8 of the wavelength, or 1 / 8 to 1 / 4, or 1 / 4 to 1 / 2, or longer). In one embodiment, a radiator with a closed slot or slot may be referred to as a closed slot antenna. In one embodiment, a radiator with a semi-closed slot or slot (e.g., a closed slot or slot with an additional opening) may be referred to as an open slot antenna. In some embodiments, the slot is elongated. In some embodiments, the slot is approximately half a wavelength (e.g., the dielectric wavelength). In some embodiments, the slot is approximately an integer multiple of the wavelength (e.g., one wavelength). In some embodiments, the slot can be fed with a transmission line spanning one or both sides, thereby exciting a radio frequency electromagnetic field in the slot and radiating electromagnetic waves into space. In one embodiment, the radiator of a slot antenna or slot antenna can be implemented as a conductive frame with both ends grounded, also known as a frame antenna. In this embodiment, the slot antenna or slot antenna can be considered to include a linear radiator spaced from the floor and grounded at both ends, thereby forming a closed or semi-enclosed slot or slot. In one embodiment, the radiator of a slot antenna or slot antenna can be implemented as a bracket conductor with both ends grounded, also known as a bracket antenna.

[0081] The feed source / feed circuit is a combination of all circuits used for receiving and transmitting radio frequency signals. The feed circuit may include a transceiver and an RF front end circuit. In some cases, the "feed circuit" is understood in a narrow sense as a radio frequency chip (RFIC, Radio Frequency Integrated Circuit), and the RFIC can be considered to include an RF front end chip and a transceiver. The feed circuit has the function of converting radio waves (e.g., radio frequency signals) and electrical signals (e.g., digital signals). Generally, it is considered to be part of the radio frequency.

[0082] The terms "first," "second," etc. are used for descriptive purposes only and should not be understood to indicate or imply relative importance or to implicitly indicate the quantity of the technical features indicated. Thus, a feature specified as "first," "second," etc. may explicitly or implicitly include one or more of the features.

[0083] The following describes possible implementations of the present application in conjunction with the accompanying drawings in possible implementations of the present application.

[0084] A specific embodiment of the present application provides a terminal device comprising a display module and an antenna. The antenna includes a radiator. The terminal device includes a circuit board having a radio frequency chip and a feed structure electrically connected to the radio frequency chip. The radiator and the feed structure are electrically connected, and when excited, the radiator generates a current, generating resonance. The radiator of the antenna is located on the periphery of a side of the display module.

[0085] In one embodiment, the radiator is located on the frame of the terminal device. In order to ensure that the terminal device has a large screen-to-body ratio, the distance between the side of the display module and the radiator needs to be set within a preset range. In other words, the side of the display module cannot be too far from the radiator. If the display module radiator is far away, the terminal device's display screen will have a larger frame, and the screen-to-body ratio will be smaller, affecting the terminal device's appearance and poor customer experience. While ensuring that the terminal device's display module has a large screen-to-body ratio, the display module will absorb part of the signal from the antenna radiator, causing the display module to absorb the antenna and affecting the antenna's performance. Specifically, since the conductive material inside the display module is mainly ITO (indium tin oxide), which has low conductivity and thin wiring (about 2um), it will cause absorption loss of the electromagnetic wave signal radiated by the antenna radiator.

[0086] This application aims to achieve a larger screen-to-body ratio and reduce the display module's antenna absorption loss. By improving the display module's structure, this application can reduce the display module's antenna absorption loss. This application includes at least the following three specific implementations.

[0087] In the first embodiment, the embodiment of the present application sets a shielding structure at the bottom and side of the display structure of the display module, and realizes isolation between the antenna radiator and the display structure through the shielding structure located on the side, reduces the signal coupling between the display structure and the antenna radiator, thereby reducing the absorption loss of the display module to the antenna. The shielding structure located at the bottom can also realize isolation between the display structure and part of the antenna at the bottom of the display structure, reduce signal coupling, and thus reduce the absorption loss of the display module to the antenna.

[0088] In a second embodiment, the embodiment of the present application shrinks the edge of the touch layer of the display structure in the display module so that the metal area of ​​the touch layer is smaller than the metal area of ​​the display layer, thereby reducing the display module's absorption of antenna radiation without affecting the touch experience.

[0089] In a third embodiment, the present invention incorporates a screen wall at the edge of the display structure during the display module manufacturing and packaging process. Structurally, the screen wall is built into the display structure and positioned outside the main structure of the display structure, which includes functional layers such as a conductive layer. This shielding wall reduces antenna absorption losses from the main structure of the display module.

[0090] The following describes possible implementations of the present application in conjunction with the accompanying drawings in possible implementations of the present application.

[0091] FIG1 is a partial schematic diagram of a terminal device provided in one embodiment of the present application. Referring to FIG1 , the terminal device 1000 includes a display structure 10 , a shielding structure 20 , an antenna 30 , and a circuit board 40 .

[0092] Referring to FIG. 1 , in one embodiment, display structure 10 is a display screen with display functionality. Display structure 10 comprises a conductive material, which may be, but is not limited to, ITO (indium tin oxide). For example, display structure 10 comprises circuit wiring, pixel circuits, and other circuits, all of which are constructed from the conductive material. The conductive material has low conductivity and thin traces, for example, a conductivity of 10^3 S / m. The conductive material causes absorption loss in antenna radiation. In one embodiment, the display structure 10 may include a display layer (e.g., an OLED (Organic Light-Emitting Diode) layer) and a touch layer. The display structure 10 includes a first surface S1 and a second surface S2 arranged opposite to each other. At least a portion of the first surface S1 constitutes the display surface of the screen of the terminal device 1000. The first surface S1 faces the outside of the terminal device 1000 and is used to provide a display interface. The second surface S2 can be understood as the back of the display structure 10. The second surface S2 faces the interior of the terminal device 1000 and the back cover (the back cover is not shown in FIG. 1 , and the back cover is located on the side of the circuit board 40 away from the display structure 10). The back cover is a portion of the outer shell of the terminal device opposite to the display screen. The display structure 10 also includes a side surface S3, which has a different orientation from the first surface S1. In a specific embodiment, the side surface S3 may face the frame of the terminal device 1000 (the radiator 32 in FIG. 1 is at least a portion of the frame), and the side surface S3 may be connected between the first surface S1 and the second surface S2.

[0093] Referring to FIG1 , the shielding structure 20 includes a conductive material. In one embodiment, the conductive material of the shielding structure 20 can be at least one of stainless steel, copper, silver paste, and conductive cloth, or a combination of at least two of them. For example, the conductivity of the conductive material in the shielding structure 20 can be 10^7 S / m. The shielding structure 20 includes a first portion 21 and a second portion 22. The first portion 21 is connected to the second surface S2 and covers at least a portion of the second surface S2. The second portion 22 is located on the periphery of the side surface S3 and is arranged opposite to at least a portion of the side surface S3. The first portion 21 and the second surface S2 can be directly bonded together, or other layer structures can be arranged between the first portion 21 and the second surface S2 to achieve connection between the two by indirect bonding. In one embodiment, the second portion 22 can be connected to the edge of the first portion 21, and the two are interconnected to form an integrated structure, so that the shielding structure 20 constitutes an integrated membrane structure or plate structure with a folded edge.

[0094] In other embodiments, the second part 22 may also be independent of the first part 21, that is, the two are not connected. For example, the first part 21 and the second part 22 are both adhered to the surface of the display structure 10, or the first part 21 is adhered to the surface of the display structure 10, and the second part 22 is connected to other structures or brackets in the terminal device (such as the middle frame) and extends to the periphery of the side S3 of the display structure 10.

[0095] Referring to FIG. 1 , the second portion 22 and the side surface S3 are spaced apart, forming a gap G1 therebetween. In one embodiment, the shielding structure 20 and the display structure 10 are independent of each other, but are assembled into a single unit. During assembly, the first portion 21 of the shielding structure 20 is affixed to the second surface S2, such that the second portion 22 and the side surface S3 are spaced apart and face each other. Maintaining a gap G1 between the second portion 22 and the side surface S3 prevents collision or scraping between the second portion 22 and the side surface S3 of the display structure 10 during assembly of the shielding structure 20 to the display structure 10, thereby protecting the safety of the side surface S3 of the display structure 10. The gap G1 between the second portion 22 and the side surface S3 (the distance measured perpendicular to the side surface) needs to be greater than or equal to a preset value, such as 0.1 mm. This preset value is the minimum gap between the second portion 22 and the side surface S3. The preset value can be set based on the tolerance range of the specific assembly process. For high-precision assembly equipment, the preset value can be as small as possible. By ensuring that the gap G1 between the second portion 22 and the side S3 is greater than or equal to a preset value, the gap G1 can absorb assembly tolerances or operational errors caused by the assembly process, thereby preventing collision or scratching between the second portion 22 and the side S3 of the display structure 10, protecting the display structure 10, and reducing the risk of cracks at the edge.

[0096] Referring to Figure 1, the antenna 30 includes a feed circuit 31 and a radiator 32. The feed circuit 31 is arranged on a circuit board 40. A radio frequency chip 50 may also be arranged on the circuit board 40. The feed circuit 31 and the radio frequency chip 50 are electrically connected. In one embodiment, the feed circuit 31 and the radio frequency chip 50 may be arranged on the same circuit board 40. In one embodiment, the feed circuit 31 and the radio frequency chip 50 may also be located on different circuit boards. For example, the radio frequency chip 50 is arranged on the main board of the terminal device, and the feed circuit 31 is located on a small board inside the terminal device. The main board and the small board are separately arranged at different positions inside the terminal device. The radiator 32 is located on the periphery of the side S3 of the display structure 10. In one embodiment, the radiator 32 is at least part of the frame of the terminal device 1000. The radiator 32 and the feed circuit 31 are electrically connected. For example, the radiator 32 can be electrically connected to the feed circuit 31 by a conductive spring.

[0097] In the embodiment shown in Figure 1, the radiator 32 is located in a partial area of ​​the periphery of the display structure 10, the second part 22 is also located in a partial area of ​​the periphery of the display structure 10, and the second part 22 is located between the radiator 32 and the side S3 of the display structure 10. The second part 22 is used to achieve at least partial isolation of the signal between the display structure 10 and the radiator 32, reduce the signal coupling between the two, and reduce the absorption loss of the display structure 10 to the antenna 30.

[0098] In one embodiment, in a direction perpendicular to the side surface S3 of the display structure 10 (i.e., the first direction A1), or in a radial direction of the display surface of the display structure 10 (radiating from the center to the periphery, i.e., the first direction A1), the vertical distance D1 between the second portion 22 and the radiator 32 is within a range of 0.3 mm or greater and 3.3 mm or less. The vertical distance D2 between the second portion 22 and the side surface S3 of the display structure 10 is within a range of 0.1 mm or greater and 0.3 mm or less. By positioning the second portion 22 of the shielding structure 20 close to the side surface S3 of the display structure 10, this solution ensures that the shielding structure 20 maintains an appropriate distance from the radiator 32, reducing the impact of the second portion 22 on the clearance of the radiator 32. Because the shielding structure 20 is made of a conductive material and is a conductor structure, its placement around the radiator 32 can affect the clearance of the radiator 32, thereby affecting the signal transmission and reception performance of the antenna 30. Therefore, it is necessary to ensure that the distance between the second portion 22 and the radiator 32 is within an appropriate range so that the impact of the second portion 22 on the radiator 32 is less than the benefit of reducing the absorption loss of the display structure 10 to the antenna 30 through the second portion 22. In this way, even if the second portion 22 has an impact on the clearance, the greater benefit generated by isolating the signal coupling between the display structure 10 and the radiator 32 can also achieve the overall improvement of the performance of the antenna 30 in this application.

[0099] FIG2 is a partial schematic diagram of a terminal device provided in accordance with an embodiment of the present application. The embodiment shown in FIG2 differs from the embodiment shown in FIG1 in that: in the embodiment shown in FIG2 , the radiator 32 is distributed on the outside of the display structure 10, and both sides of the display structure 10 have a radiator 32. Moreover, the radiators 32 on both sides of the display structure 10 in FIG2 are interconnected as an integral structure; the second portions 22 on the periphery of the side surfaces S3 on the opposite sides of the display structure 10 are interconnected as an integral structure. It is understood that in this embodiment, the radiator 32 surrounds the display structure 10 in at least a semi-enclosed manner, and the radiator 32 can also completely surround the display structure 10. Correspondingly, the second portion 22 also surrounds the side surface S3 of the display structure 10 in at least a semi-enclosed manner, and the second portion 22 can also completely surround the side surface S3 of the display structure 10.

[0100] Figure 3 is a schematic diagram of a plane containing a display screen of a terminal device 1000 provided in one embodiment of the present application. Referring to Figure 3 , in one embodiment, the display screen of terminal device 1000 is rectangular. Terminal device 1000 can be a watch, a mobile phone, a tablet, or other terminal. The display structure 10 is rectangular, the second portion 22 is a rectangular frame surrounding the periphery of the display structure 10, and the radiator 32 is a rectangular frame surrounding the periphery of the second portion 22.

[0101] Figure 4 is a schematic diagram of a plane containing a display screen of a terminal device 1000 according to one embodiment of the present application. Referring to Figure 4 , in one embodiment, the display screen of the terminal device 1000 is circular. The display structure 10 is circular, the second portion 22 is annular and surrounds the periphery of the display structure 10, and the radiator 32 is annular and surrounds the periphery of the second portion 22.

[0102] Figure 5 is a schematic diagram of a terminal device 1000 provided in accordance with one embodiment of the present application. Referring to Figure 5 , terminal device 1000 includes a housing 100, which includes a shell 60 and a cover 70. Shell 60 encloses a receiving space 601 with an opening. Cover 70 is located at the opening of receiving space 601 and is connected to shell 60. In one embodiment, cover 70 is made of a translucent material, such as glass or sapphire. Shell 60 includes a frame 62 and a back cover 61. Back cover 61 and cover 70 are positioned opposite each other, with frame 62 surrounding the edges of back cover 61 and cover 70. Frame 62 is used to house the radiator 32 of antenna 30 within terminal device 1000. It can also be understood that frame 62 constitutes the radiator 32 of antenna 30. The display structure 10, shielding structure 20, and circuit board 40 of terminal device 1000 are disposed within receiving space 601. The display structure 10 is located inside cover 70, and the circuit board 40 is located between the display structure 10 and back cover 61. In this embodiment, the first portion 21 of the shielding structure 20 is located at the bottom of the display structure 10, between the circuit board 40 and the display structure 10. The first portion 21 can reduce the loss caused by the display structure 10 absorbing the signal of the radio frequency circuit on the circuit board 40. The second portion 22 of the shielding structure 20 surrounds the periphery of the side surface S3 of the display structure 10 and can reduce the loss caused by the display structure 10 absorbing the signal of the radiator 32.

[0103] In the embodiment shown in FIG5 , the display structure 10 and the cover plate 70 can be bonded together using optical adhesive. An optical film, such as a filter or polarizer, can also be positioned between the display structure 10 and the cover plate 70. The inner surface of the cover plate 70 includes an ink layer 72, which is used to shield the circuitry at the edge of the display structure 10. A gap G2 is defined between the second portion 22 and the ink layer 72. This gap G2 prevents contact between the second portion 22 and the ink layer 72, preventing the second portion 22 from scratching the ink layer 72.

[0104] Figure 6 is a schematic diagram of a terminal device provided in one embodiment of the present application. Referring to Figure 6 , the terminal device 1000 includes a display structure 10, an antenna 30, and a circuit board 40. The display structure 10 includes a first surface S1 and a second surface S2 disposed opposite each other, and a side surface S3 connected between the first surface S1 and the second surface S2. At least a portion of the first surface S1 constitutes the display surface of the terminal device 1000's screen. In one embodiment, the terminal device 1000 also includes a shielding structure 20, which is comprised of a conductive material. The shielding structure 20 is provided on one side of the second surface S2 of the display structure 10. The circuit board 40 is positioned below the second surface S2 of the display structure 10, and the shielding structure 20 is positioned between the second surface S2 of the display structure 10 and the circuit board 40. The antenna 30 includes a feed circuit 31 and a radiator 32. The feed circuit 31 is disposed on the circuit board 40, and the radiator 32 is disposed around the periphery of the side surface S3 of the display structure 10. The shielding structure 20 is used to reduce signal coupling between the display structure 10 and the feed circuit 31 of the antenna 30, thereby reducing absorption loss of the antenna by the display structure 10.

[0105] Referring to Figure 6 , the display structure 10 includes a stacked display layer 11 and a touch layer 12. The edges of the touch layer 12 are recessed relative to the edges of the display layer 11. Side surfaces 11S of the display layer 11 and side surfaces 12S of the touch layer 12 each constitute a portion of side surface S3 of the display structure 10. In a direction perpendicular to side surface S3 (i.e., first direction A1), a vertical distance D3 between the radiator 32 and the edge of the touch layer 12 is greater than a vertical distance D4 between the radiator 32 and the edge of the display layer 11. In the edge region of the display structure 10, touch functionality is less frequently used. Therefore, the edges of the touch layer 12 are recessed relative to the display layer 11, with the extent of the recess maintained within an appropriate range, without affecting the touch functionality of the display structure 10. The recessed edges of the touch layer 12 increase the distance between the circuitry within the touch layer 12 and the radiator 32, thereby reducing absorption losses of the touch layer 12 from the radiator 32. Therefore, this solution reduces the signal coupling between the display structure 10 and the radiator 32 and reduces the absorption loss of the display structure 10 to the radiator 32 while ensuring that the touch function of the display structure 10 meets the usage requirements by retracting the edge of the touch layer 12 compared to the edge of the display layer 11.

[0106] In this embodiment, the vertical distance D3 between the edge of the touch layer 12 and the radiator 32, in a direction perpendicular to the side surface S3, ranges from 0.9 to 4.6 mm. The vertical distance D4 between the edge of the display layer 11 and the radiator 32 ranges from 0.4 to 4.1 mm. In one embodiment, the distance (D3 - D4) by which the edge of the touch layer 12 is indented relative to the edge of the display layer 11 ranges from 0.5 to 1 mm.

[0107] The embodiment shown in FIG6 reduces the absorption loss of the radiator 32 by the display structure 10 by retracting the touch layer 12 relative to the display layer 11. In this embodiment, the touch layer 12 and the display layer 11 are two independent layers, and a spacer layer 13 may be provided between the touch layer 12 and the display layer 11. For example, the spacer layer 13 may be at least 0.3 mm thick, meaning that the spacer layer 13 is at least 0.3 mm thick.

[0108] In the embodiment shown in FIG6 , the radiator 32 may be a frame 62 of the housing 60 of the terminal device 1000 or a portion of the frame 62. The terminal device 1000 may further include a cover plate 70. The cover plate 70 and the housing 60 are connected to form a receiving space 601. The display structure 10 and the circuit board 40 are located within the receiving space 601. The first surface S1 of the display structure 10 faces the cover plate 70. In one embodiment, the first surface S1 may be bonded to the cover plate 70 using optical adhesive. In one embodiment, an optical film, such as a filter or polarizer, may also be disposed between the first surface S1 and the cover plate 70.

[0109] Figure 7A is a schematic diagram of a terminal device provided in accordance with an embodiment of the present application. The embodiment shown in Figure 7A builds upon the embodiment shown in Figure 6 by adding a partial shielding structure 20 to the periphery of the side surface S3 of the display structure 10, thereby further reducing the absorption loss of the radiator 32 by the display structure 10. Referring to Figure 7A , the shielding structure 20 includes a first portion 21 and a second portion 22. The display structure 10 includes a first surface S1 and a second surface S2 disposed opposite each other, and a side surface S3 connected between the first and second surfaces S1 and S2. The first surface S1 faces the cover 70 and can be attached to the inner surface of the cover 70. The first portion 21 is connected to the second surface S2 of the display structure 10 and covers at least a portion of the second surface S2. The second portion 22 is located around the periphery of the side surface S3 of the display structure 10 and is spaced apart and disposed directly opposite the side surface S3. In a specific embodiment, the edge of the first portion 21 is located around the edge of the display structure 10, and the projection of the display structure 10 on the first portion 21 is located within the first portion 21. The first portion 21 may be provided with an opening or hollow area to avoid other components in the terminal device. The second portion 22 bends and extends from the edge of the first portion 21 and blocks at least a portion of the side surface S3 of the display structure 10.

[0110] Referring to FIG. 7A , the side surface S3 of the display structure 10 includes the side surface 11S of the display layer 11, the side surface 12S of the touch layer 12, and the portion connected between the side surface 11S of the display layer 11 and the side surface 12S of the touch layer 12. In one embodiment, the second portion 22 directly faces the side surface 11S of the display layer 11 of the display structure 10. The end of the second portion 22 distal from the first portion 21 can be flush with the surface of the display layer 11 distal from the first portion 21. The vertical distance between the end of the second portion 22 distal from the first portion 21 and the first portion 21 can be greater than the thickness of the display layer 11. That is, in a direction perpendicular to the side surface 11S of the display layer 11, the vertical projection of the display layer 11 on the second portion 22 is located within the second portion 22. In this embodiment, the touch layer 12 can be laminated to the inner surface of the cover plate 70 of the terminal device 1000, or the touch layer 12 can be integrated into the inner surface of the cover plate 70. To ensure a gap between the second portion 22 and the inner surface of the cover plate 70, the second portion 22 is prevented from scratching the ink layer 72 on the inner surface of the cover plate 70. In this embodiment, the outer periphery of the side surface 12S of the touch layer 12 is the ink layer 72, and the second portion 22 does not extend to the outer periphery of the side surface 12S of the touch layer 12. The design of laminating or integrating the touch layer 12 with the inner surface of the cover plate 70 facilitates the realization of a lightweight and thin design for the terminal device 1000 in this embodiment.

[0111] This solution can also reduce the signal coupling between the display structure 10 and the radiator 32 by blocking the side 11S of the display layer 11 at the periphery of the side S3 of the display structure 10 through the second part 22, and combining the edge of the touch layer 12 that is retracted compared to the edge of the display layer 11, thereby reducing the absorption loss of the display structure 10 to the radiator 32.

[0112] Figure 7B is a partially enlarged schematic diagram of a terminal device provided in one embodiment of the present application. Referring to Figure 7B , in one embodiment, the touch layer 12 and the cover plate 70 are spaced apart. The second portion 22 can also face both the side surface 11S of the display layer 11 and the side surface 12S of the touch layer 12. A gap is maintained between the second portion 22 and the ink layer 72 on the inner surface of the cover plate 70. In this embodiment, the vertical distance between the surface of the touch layer 12 facing away from the display layer 11 and the first portion 21 is equal to the height by which the top of the second portion 22 protrudes relative to the first portion 21. The top of the second portion 22 is the end of the second portion 22 facing away from the first portion 21. In this embodiment, the second portion 22 of the shielding structure 20 is designed to be flush with the surface of the touch layer 12 facing away from the display layer 11, thereby shielding the display layer 11 and the touch layer 12 from the second portion 22. Combined with the design in which the edge of the touch layer 12 is recessed relative to the edge of the display layer 11, this reduces signal coupling between the display structure 10 and the radiator 32, thereby reducing absorption loss of the radiator 32 by the display structure 10.

[0113] Figure 7C is a partially enlarged schematic diagram of a terminal device provided in accordance with an embodiment of the present application. Referring to Figure 7C , the embodiment illustrated in Figure 7C increases the spacing between the touch layer 12 and the cover plate 70, based on the embodiment illustrated in Figure 7B . In a direction perpendicular to the first portion 21 of the shielding structure 20, the height of the second portion 22, at the end distal to the first portion 21, exceeds the surface of the touch layer 12 distal to the display layer 11. As can be seen from the dashed line drawn from the edge of the touch layer 12 in Figure 7C , the top surface of the touch layer 12 corresponds to the interior of the second portion 22. The portion of the second portion 22 above the dashed line represents the portion of the second portion 22 protruding beyond the touch layer 12. A gap is maintained between the end of the second portion 22 distal to the first portion 21 and the ink layer 72 on the inner surface of the cover plate 70. In this embodiment, the vertical distance between the surface of the touch layer 12 distal to the display layer 11 and the first portion 21 is less than the height of the top of the second portion 22 protruding relative to the first portion 21. The top of the second portion 22 is the end distal to the first portion 21. The height of the second portion 22 exceeding the surface of the touch layer 12 can enhance the effect of reducing signal coupling between the display structure 10 and the radiator 32 and reducing the absorption loss of the display structure 10 on the radiator 32 .

[0114] In the embodiments shown in FIG. 7B and FIG. 7C , the edge of the touch layer 12 may not be retracted, that is, the edge of the touch layer 12 may be flush with the edge of the display layer 11 .

[0115] FIG8 is a schematic diagram illustrating the specific structural design between the display structure and shielding structure in a terminal device according to one embodiment of the present application. Referring to FIG8 , the shielding structure 20 is a shielding cover structure with a folded edge. The shielding structure 20 is independent of the display structure 10, and a gap G1 is defined between the second portion 22 of the shielding structure 20 and the side surface S3 of the display structure 10. In this embodiment, the terminal device also includes a near-field communication (NFC) antenna 91, which is attached to the second surface S2 of the display structure 10. The first portion 21 of the shielding structure 20 is attached to the second surface S2, sandwiching the NFC antenna 91 between the first portion 21 and the second surface S2. The terminal device also includes an FPC (or conductive cable) 92 connected to the display structure 10. The FPC (or conductive cable) 92 extends from the edge of the first portion 21, i.e., the opening formed by the second portion 22. The FPC (or conductive cable) 92 is laminated on the surface of the first portion 21 facing away from the display structure 10. The FPC (or conductive flat cable) has a connector 93, which is used to electrically connect to other control chips, system-on-chips, or connectors on the motherboard within the terminal device. Specifically, connector 93 may be a BTB connector. In this embodiment, the display structure 10 and the terminal device's cover plate 70 (a protective layer, such as glass or sapphire) are bonded together using optical adhesive. The edge of the cover plate 70 extends beyond the edge of the display structure, leaving a gap between the second portion 22 and the ink layer on the inner surface of the cover plate 70.

[0116] FIG9A is a schematic diagram illustrating the specific structural design between the display structure and shielding structure in a terminal device according to one embodiment of the present application. Referring to FIG9A , a shielding structure 20 is sprayed onto the second surface S2 and side surface S3 of the display structure 10 using a metal spray coating. In this embodiment, a second portion 22 of the shielding structure 20 is bonded to the side surface S3 of the display structure 10. Specifically, the metal material sprayed onto the side surface S3 constitutes the second portion 22 of the shielding structure 20. In this embodiment, the display structure 10 and the terminal device's cover plate 70 (a protective layer, such as glass, sapphire, etc.) are bonded using optical adhesive. The edge of the cover plate 70 extends beyond the edge of the display structure 10, and the top of the second portion 22 is connected to the inner surface of the cover plate 70. In this embodiment, the shielding structure 20 and the cover plate 70 jointly enclose the display structure 10, creating a closed enclosure for the display structure 10, further reducing absorption losses caused by the display structure 10 to the antenna radiator. In other embodiments, the second portion 22 may also cover a portion of the side surface S3, and a gap may be formed between the second portion 22 and the inner surface of the cover plate 70.

[0117] In the embodiment shown in FIG9A , the terminal device further includes a near-field communication (NFC) antenna 91, which is attached to the second surface S2 of the display structure 10. The terminal device further includes an FPC (or conductive cable) 92 connected to the display structure 10. The FPC (or conductive cable) 92 is attached to the second surface S2 and covers the near-field communication (NFC) antenna 91, such that the near-field communication (NFC) antenna 91 is sandwiched between the second surface S2 and the FPC (or conductive cable) 92. The first portion 21 of the shielding structure 20 is sprayed on the outer surface of the FPC. A portion of the FPC (or conductive cable) 92 extends outside the edge of the display structure 10, and a connector 93 is provided on the portion of the FPC (or conductive cable) 92 that extends outside.

[0118] FIG9B is a schematic diagram of a specific structural design between the display structure and the shielding structure in a terminal device provided in an embodiment of the present application. The difference between the embodiment shown in FIG9B and the embodiment shown in FIG9A is that, in the embodiment shown in FIG9B , a bend portion 22T is formed at the connection between the second portion 22 of the shielding structure 20 and the cover plate 70. The bend portion 22T covers the inner surface of the cover plate, and the bend portion 22T surrounds the periphery of the display structure 10 to form a ring-shaped structure. The width of the bend portion 22T in the radial direction can be controlled within 0.2 mm to ensure good clearance for the antenna.

[0119] FIG10 is a schematic diagram of a terminal device provided in accordance with an embodiment of the present application. Referring to FIG10 , the terminal device 1000 includes a display structure 10 and an antenna 30. The antenna 30 includes a feed circuit 31 and a radiator 32. The radiator 32 of the antenna 30 is located on a frame 62 of a housing 60 of the terminal device 1000. The display structure 10 includes a first surface S1 and a second surface S2 that are arranged opposite to each other, and a side surface S3 connected between the first surface S1 and the second surface S2. At least a portion of the first surface S1 is the display surface of the screen of the terminal device 1000. The first surface S1 faces the cover plate 70 of the terminal device 1000. The cover plate 70 is connected to the opening of the housing 60 and together with the housing 60, encloses a receiving space 601. The display structure 10 and the circuit board 40 are located in the receiving space 601, and the feed circuit 31 is located on the circuit board 40.

[0120] In one embodiment, the display structure 10 includes a substrate 14, a main structure 10A, and an edge structure 10B. The substrate 14 includes a top surface 141 and a bottom surface 142 arranged opposite to each other. The main structure 10A and the edge structure 10B are formed on the top surface 141 of the substrate 14, and the edge structure 10B is arranged around at least a portion of the periphery of the main structure 10A. The main structure 10A and the edge structure 10B are integrally formed on the substrate 14 using a circuit board manufacturing process. The main structure 10A includes a display layer 11 and a touch layer 12 stacked in a direction perpendicular to the top surface 141. The edge structure 10B includes a shielding wall 23, which covers at least a portion of the main structure 10A in a direction perpendicular to the side surface S3.

[0121] The radiator 32 of the antenna 30 is located on the periphery of the side surface S3 and is spaced apart from the display structure 10. In a direction perpendicular to the side surface S3, the shielding wall 23 is located between the radiator 32 and the main structure 10A to isolate at least part of the signal between the radiator 32 and the main structure 10A. The distance D5 between the radiator 32 and the shielding wall 23 is greater than the distance D6 between the shielding wall 23 and the main structure 10A. In the embodiment shown in FIG10 , a portion of the main structure 10A of the display structure 10 includes a conductive circuit formed of a conductive material. Without the isolation of the shielding wall 23, the main structure 10A would easily absorb the signal from the antenna 30, and the conductive material of the main structure 10A would easily couple with the radiator 32, resulting in signal loss from the main structure 10A to the radiator 32 of the antenna 30. In this solution, a shielding wall 23 is formed in the display structure 10 . The shielding wall 23 includes a conductive material. The shielding wall 23 can reduce the coupling of signals between the radiator 32 and the main structure 10A, thereby reducing the absorption loss of the display structure 10 on the radiator 32 .

[0122] In one embodiment, the shielding wall 23 is formed by applying a conductive material to the surface of the substrate 14 through a process such as spraying or printing, and is formed around the main structure 10A. The conductive material of the shielding wall 23 can be silver paste, for example. In one embodiment, the height of the shielding wall 23 on the substrate 14 is greater than the height of the display layer 11. In one embodiment, the height of the shielding wall 23 on the substrate 14 can be flush with the height of the touch layer 12 of the main structure 10A.

[0123] Referring to Figure 10 , a radio frequency chip and a feed circuit 31 can be mounted on a circuit board 40 within the terminal device, and power is fed to a radiator 32 via the feed circuit 31. The display structure 10 also includes a shielding layer 24, which is located on one side of the bottom surface 142 of the substrate 14 and covers at least a portion of the main structure 10A. The shielding layer 24 is electrically connected to the shielding wall 23 via vias in the substrate 14. The shielding layer 24 is spaced apart between the circuit board 40 and the display structure 10, and can reduce signal losses caused by the display structure 10 absorbing signals from the radio frequency circuitry on the circuit board 40.

[0124] Figure 11 is a partially enlarged schematic diagram of a display structure provided by one embodiment within the terminal device shown in Figure 10 . The features enclosed by dashed lines in Figure 11 represent the main structure 10A and the edge structure 10B. Referring to Figure 11 , the main structure 10A includes a TFT (thin film transistor) circuit B1, a TFE (thin film encapsulation) vapor-deposited layer B2, and a TOE (touch on encapsulation) layer B3, stacked on a substrate 14. The edge structure 10B is located outside the main structure 10A.

[0125] The display structure 10 includes a first surface S1, a second surface S2, and a side surface S3 connecting them. The edge structure 10B includes three layers of insulating walls, extending perpendicular to the side surface S3 of the display structure 10 (i.e., a first direction A1). These three insulating walls are an inner wall W1, a middle wall W2, and an outer wall W3. A first spacing space R1 is formed between the inner wall W1 and the middle wall W2, while a second spacing space R2 is formed between the middle wall W2 and the outer wall W3. The first spacing space R1 is used to contain conductive material that overflows from the main structure 10A during the manufacturing process, preventing it from entering the second spacing space R2. The second spacing space R2 is filled with conductive material, which forms a shielding wall 23 within the second spacing space R2. The shielding wall 23 is used to reduce signal coupling between the radiator and the main structure 10A, thereby reducing absorption losses of the radiator by the display structure 10. The bottom of the shielding wall 23 is electrically connected to the shielding layer 24 on the bottom surface of the substrate 14 through vias (conductive through-holes) in the substrate 14.

[0126] Specifically, the area where the first spacing space R1 is located constitutes the isolation portion of the edge structure 10B. The isolation portion is located between the shielding wall 23 and the main structure 10A. The accommodation space in the isolation portion (i.e., the first spacing space R1) is used to accommodate the conductive material that flows from the main structure 10A to the isolation portion during the manufacturing process of the main structure 10A. In a specific embodiment, in the process of manufacturing the main structure 10A, the conductive material can be printed on the substrate 14 through a manufacturing process such as spraying and printing. Since the conductive material is in liquid form during the manufacturing process, it has fluidity. This solution sets an isolation portion in the area between the shielding wall 23 and the edge of the main structure 10A. The isolation portion is similar to a dam structure, which can prevent the conductive material from flowing to the position of the shielding wall 23.

[0127] FIG12 is a schematic plan view of a display structure provided by one embodiment within the terminal device shown in FIG10 . Referring to FIG12 , the shielding wall 23 forms a surrounding structure having an opening 231 . Referring to FIG11 and FIG12 , the display structure 10 includes an edge trace 17 , which is stacked and disposed on a side of the edge structure 10B away from the substrate 14 . The edge trace 17 is electrically connected to the main structure 10A, passes through the opening 231, and extends to the periphery of the edge structure 10B.

[0128] Figure 13 is a schematic diagram of a terminal device provided in one embodiment of the present application. Referring to Figure 13 , the terminal device 1000 provided in this application can be a wearable device such as a watch or smart bracelet. The terminal device 1000 includes a display cover 70 and a frame 62 . Frame 62 is used to house the radiator of the terminal device 1000's antenna.

[0129] Figure 14 is a cross-sectional view of the terminal device shown in Figure 13, and Figure 15 is an enlarged schematic view of section I in Figure 14. Referring to Figures 14 and 15, the terminal device housing 60 includes a frame 62 and a back cover 61. The frame 62 and back cover 61 are separate components that are assembled and connected, for example, by adhesive. The frame 62 and back cover 61 can also be integrally formed. The top of the frame 62 is connected to the cover plate 70, the edge of which is fixedly connected to the frame 62. A decorative ring 80 is provided around the junction between the cover plate 70 and the frame 62, shielding the junction between the cover plate 70 and the frame 62. The display structure 10 is provided on the inner side of the cover plate 70. The top surface of the display structure 10 is a first surface S1, and the bottom surface is a second surface S2. The first surface S1 faces the inner surface of the cover plate 70. The second surface S2 is connected to the first portion 21 of the shielding structure 20. The second portion 22 of the shielding structure 20 bends upward from the edge of the first portion 21 and is shielded around the side surface S3 of the display structure 10. The second portion 22 is between the display structure 10 and the frame 62 . The frame 62 is the radiator 32 of the antenna. The second portion 22 can isolate at least part of the signal coupling between the radiator 32 and the display structure 10 , thereby reducing the absorption loss of the display structure 10 on the radiator 32 .

[0130] Figure 16 is a perspective schematic diagram of the shielding structure in the terminal device shown in Figure 13. Figure 17 is an enlarged schematic diagram of section II in Figure 16. Referring to Figure 16, the first portion 21 of the shielding structure 20 has a hollow area 212. This hollow area 212 is used to avoid larger components in the terminal device, such as the ambient light sensor (ALS) and the near-field communication antenna (NFC).

[0131] Referring to Figures 16 and 17 , the second portion 22 and the first portion 21 are integrally formed. The second portion 22 is formed by bending the edge of the first portion 21 to form a folded edge. The second portion 22 does not completely surround the edge of the first portion 21. Instead, it surrounds the edge of the first portion 21 and forms an opening 222. As shown in Figure 16 , the second portion 22 forms two openings 222 around the edge of the first portion 21. For example, one of the two openings 222 is used to provide access to the flexible circuit board of the display screen, which is then electrically connected to the system-on-chip on the motherboard within the terminal device. The other opening 222 is used to provide access to other components within the terminal device.

[0132] FIG18 is a schematic diagram of a terminal device provided in one embodiment of the present application. Referring to FIG18 , the terminal device 1000 provided in the present application may be a mobile phone. The terminal device 1000 includes a display cover 70 and a frame 62 . The frame 62 is used to house the radiator of the antenna of the terminal device 1000 .

[0133] Figure 19 is a cross-sectional view of the terminal device shown in Figure 18, and Figure 20 is an enlarged schematic diagram of part III in Figure 19. Referring to Figures 19 and 20, the shell 60 of the terminal device includes a frame 62 and a back cover 61. The frame 62 and the back cover 61 can be independent parts assembled into one body, or they can be an integrally formed structure. The outer layer of the display screen of the terminal device 1000 is a protective layer (i.e., a cover plate 70), and the interior has a display structure 10. The protective layer (i.e., the cover plate 70) is connected to the frame 62. The protective layer (i.e., the cover plate 70) is stacked on the display surface of the display structure 10. Referring to Figure 20, the bottom surface of the display structure 10 is connected to the first part 21 of the shielding structure 20, and the second part 22 of the shielding structure 20 is bent upward from the edge of the first part 21, shielding the periphery of the side of the display structure 10. The second portion 22 is between the display structure 10 and the frame 62 . The frame 62 is the radiator 32 of the antenna. The second portion 22 can isolate at least part of the signal coupling between the radiator 32 and the display structure 10 , thereby reducing the absorption loss of the display structure 10 on the radiator 32 .

[0134] Figure 21 is a perspective schematic diagram of the shielding structure in the terminal device shown in Figure 18. Figure 22 is an enlarged schematic diagram of section IV in Figure 21. Referring to Figure 21, in this embodiment, the first portion 21 of the shielding structure 20 has a hollow area 212. This hollow area 212 is used to avoid larger components in the terminal device, such as the ambient light sensor (ALS) and the near-field communication antenna (NFC).

[0135] Referring to Figures 21 and 22, the second portion 22 and the first portion 21 are integrally formed. The second portion 22 is formed by bending the edge of the first portion 21 to form a folded edge. The second portion 22 does not completely surround the edge of the first portion 21. Instead, it surrounds the edge of the first portion 21 and forms an opening 222. As shown in Figure 21, the second portion 22 forms an opening 222 around the edge of the first portion 21. For example, one of the two openings 222 is used to clear the flexible circuit board of the display screen, which is electrically connected to the system-on-chip on the motherboard of the terminal device through the flexible circuit board. The other opening 222 is used to clear other components within the terminal device.

[0136] This application conducts simulation tests on a terminal device provided in one embodiment, which is a watch. Figure 23A is a schematic diagram of the structures of five different test schemes. Figure 23B is a simulation curve diagram of the absorption loss of the radiator generated by the five schemes shown in Figure 23A.

[0137] 23A , the terminal device shown in Scheme 1 includes a radiator and a circuit board. In Scheme 1, no display structure is provided in the terminal device, that is, no ITO material is provided. Scheme 2 adds a display layer (OLED) and a touch layer (TP) based on Scheme 1, that is, two ITO layers are added, and the two layers have equal areas. Scheme 3 retracts the edge of the touch layer based on Scheme 2, wherein the size of the display layer remains unchanged, and the edge of the touch layer is retracted 0.5 mm relative to the edge of the display layer. Scheme 4 adds a partial shielding structure on the bottom side of the display layer based on Scheme 3. The shielding structure material is a conductive material, and the area of ​​the shielding structure on the bottom side of the display layer is larger than the area of ​​the display layer. Scheme 5 adds a shielding structure on the side of the display structure based on Scheme 4. In Scheme 5, the shielding structure includes a first portion and a second portion. The first portion is located on one side of the bottom of the display layer, and the second portion surrounds the outer periphery of the side of the display structure. The second portion protrudes higher than the first portion, exceeding the touch layer. That is, the vertical distance between the top surface of the touch layer and the first portion is less than the vertical distance between the top of the second portion and the first portion.

[0138] In FIG23B , the curve marked with the number 1 in a triangle represents the total absorption loss generated by Scheme 1, the curve marked with the number 2 in a triangle represents the total absorption loss generated by Scheme 2, the curve marked with the number 3 in a triangle represents the total absorption loss generated by Scheme 3, the curve marked with the number 4 in a triangle represents the total absorption loss generated by Scheme 4, and the curve marked with the number 5 in a triangle represents the total absorption loss generated by Scheme 5. Referring to FIG23B , Scheme 1 has the smallest absorption loss because it does not have a display structure. Scheme 2 has the largest absorption loss because it adds a display structure, and both the display layer and the touch layer of the display structure can generate absorption loss. Scheme 2 does not have a shielding structure or a scheme to reduce absorption loss. Scheme 3 can reduce some absorption loss by retracting the touch layer relative to the edge of the display layer, but Scheme 3 does not have a shielding structure. Therefore, the absorption loss generated by Scheme 3 ranks second, smaller than the absorption loss of Scheme 2, but greater than the absorption loss generated by the other schemes. Solution 4 incorporates a shielding structure on the bottom side of the display layer, but the shielding structure's area is larger than the display layer's. Combined with the retracted edges of the touch layer, Solution 4 generates less absorption loss than Solution 3, ranking third in absorption loss. Solution 5, based on Solution 4, adds a shielding structure around the sides of the display structure. Solution 5 also generates less absorption loss than Solution 4, ranking fourth in absorption loss, only surpassing Solution 1.

[0139] FIG24 is a curve comparison of the absorption losses generated by materials of different structures based on the fourth scheme shown in FIG23A. In FIG24, the curve marked with the number 1 in the triangle represents the sum of the absorption losses generated by all metal structures in the fourth scheme shown in FIG23A, the curve marked with the number 2 in the triangle represents the absorption loss generated by the shielding structure (made of copper) in the fourth scheme shown in FIG23A, the curve marked with the number 3 in the triangle represents the absorption loss generated by the display structure (including the display layer and the touch layer, made of ITO) in the fourth scheme shown in FIG23A, the curve marked with the number 4 in the triangle represents the absorption loss generated by the metal structure on the circuit board in the fourth scheme shown in FIG23A, and the curve marked with the number 5 in the triangle represents the absorption loss generated by the metal frame (made of stainless steel) in the fourth scheme shown in FIG23A. As can be seen from FIG24, among all the structures of the terminal device, the absorption loss generated by the display structure is the largest.

[0140] FIG25 is a curve comparison of the absorption loss generated by materials of different structures based on Scheme 5 shown in FIG23A. In FIG25, the curve marked with the number 1 in the triangle represents the sum of the absorption losses generated by all metal structures in Scheme 5 shown in FIG23A, the curve marked with the number 2 in the triangle represents the absorption loss generated by the shielding structure (made of copper) in Scheme 5 shown in FIG23A, the curve marked with the number 3 in the triangle represents the absorption loss generated by the display structure (including the display layer and the touch layer, made of ITO) in Scheme 5 shown in FIG23A, the curve marked with the number 4 in the triangle represents the absorption loss generated by the metal structure on the circuit board in Scheme 5 shown in FIG23A, and the curve marked with the number 5 in the triangle represents the absorption loss generated by the metal frame (made of stainless steel) in Scheme 5 shown in FIG23A. As can be seen from FIG25, among all the structures of the terminal device, the absorption loss generated by the metal frame is the largest, and the absorption loss generated by the display structure ranks second.

[0141] Figure 26 is a schematic diagram of the antenna current and electric field distribution in Scheme 2 in Figure 23A. Figure 27 is a schematic diagram of the antenna current and electric field distribution in Scheme 5 in Figure 23A. Comparing Figures 26 and 27, it can be seen that in Scheme 2, due to the lack of a shielding structure design for the display structure and the inward-retracted touch layer design, the current and electric field are relatively divergent, and there is more current distribution within the display structure's screen, proving that the display structure couples the antenna current, causing absorption loss to the antenna. In the current distribution diagram of Scheme 5 shown in Figure 27, it can be seen that Scheme 5, due to its shielding structure and the inward-retracted touch layer design, makes the current and electric field relatively concentrated. The current and electric field are concentrated at the frame position, and there is less current distributed within the display structure's screen. Therefore, it can be proved that Scheme 5 can reduce the absorption loss of the display structure.

[0142] Figure 28 is a comparison of the S11 curve of the antenna system in the scheme with a shielding structure in the specific embodiment of the present application and the S11 curve of the antenna system of the terminal device without a shielding structure. Curve 1 in Figure 28 represents the return loss of the antenna of the embodiment in which a shielding structure is set outside the display structure, and curve 2 represents the return loss of the antenna of the embodiment in which a shielding structure is not set outside the display structure. It can be seen that the technical means of setting a shielding structure outside the display structure has little effect on the S11 curve of the antenna. The return loss of the antenna of the embodiment in which a shielding structure is set outside the display structure is lower. Therefore, the present application can effectively solve the problem of the absorption loss of the antenna by the display structure by setting a shielding structure on the second side and side of the display structure, which is beneficial to improving the performance of the antenna.

[0143] Figure 29 is a comparison of the curves of the radiation efficiency of the antenna system in the scheme with a shielding structure in the specific embodiment of the present application and the radiation efficiency of the antenna system of the terminal device without a shielding structure. Curve 1 in Figure 29 represents the radiation efficiency of the antenna of the embodiment in which a shielding structure is set outside the display structure, and curve 2 represents the radiation efficiency of the antenna of the embodiment in which no shielding structure is set outside the display structure. It can be seen that the radiation efficiency of the antenna in the embodiment in which a shielding structure is set outside the display structure is better, and the antenna radiation efficiency is improved by 1.5dB. Therefore, the present application can effectively solve the problem of the absorption loss of the display structure to the antenna by setting a shielding structure on the second surface and side of the display structure, which is conducive to improving the radiation efficiency of the antenna.

[0144] Figure 30 is a comparison of the S11 curve of the antenna system in the scheme with the retracted edge of the touch layer in the specific embodiment of the present application and the S11 curve of the antenna system in the scheme without the retracted touch layer in the display structure. Curve 1 in Figure 30 represents the return loss of the antenna system in the scheme with the retracted edge of the touch layer in the display structure embodiment. Specifically, the edge of the touch layer is retracted by 0.5mm. Curve 2 represents the return loss of the antenna in the embodiment of the display structure without the retracted touch layer. It can be seen that the technical means of retracting the edge of the touch layer has little effect on the S11 curve of the antenna. The scheme with the retracted edge of the touch layer in the display structure embodiment can obtain a lower return loss of the antenna. Therefore, the present application can effectively solve the problem of the absorption loss of the display structure to the antenna through the scheme of retracting the edge of the touch layer, which is conducive to improving the performance of the antenna.

[0145] Figure 31 is a graph comparing the radiation efficiency of the antenna system in a solution with a retracted edge of the touch layer and the radiation efficiency of the antenna system in a solution without a retracted touch layer in a specific embodiment of the present application. Curve 1 in Figure 31 represents the radiation efficiency of the antenna in the embodiment with a retracted edge of the touch layer. Specifically, the edge of the touch layer is retracted by 0.5mm, and the antenna radiation efficiency is improved by 0.7dB. Curve 2 represents the radiation efficiency of the antenna in the embodiment without a retracted touch layer. It can be seen that the radiation efficiency of the antenna in the solution with a display structure with a retracted edge of the touch layer is better. Therefore, the present application can effectively solve the problem of absorption loss of the display structure to the antenna by retracting the edge of the touch layer, which is beneficial to improving the radiation efficiency of the antenna.

[0146] Figure 32 compares the S11 curves of the antenna system in a specific embodiment of the present application, including a shielding structure and a retracted touch layer edge, with the S11 curves of the antenna system in a display structure without a shielding structure and a design for a non-retracted touch layer. Curve 1 in Figure 32 represents the return loss of the antenna system in a display structure embodiment in which a shielding structure is provided and the touch layer edge is retracted. Specifically, the touch layer edge is retracted by 0.5 mm. Curve 2 represents the return loss of the antenna in an embodiment in which a shielding structure and a retracted touch layer edge are not provided. It can be seen that the technical approach of providing a shielding structure and a retracted touch layer edge has little impact on the antenna's S11 curve. The display structure embodiment in which a shielding structure and a retracted touch layer edge are provided can achieve lower antenna return loss. Therefore, the present application, by providing a shielding structure and a retracted touch layer edge, can effectively address the problem of antenna absorption loss caused by the display structure, thereby improving antenna performance.

[0147] Figure 33 shows a graph comparing the radiation efficiency of the antenna system in a specific embodiment of the present application, including a shielding structure and a retracted touch layer edge, and a graph comparing the radiation efficiency of the antenna system in a specific embodiment of the present application, including a shielding structure and a retracted touch layer edge. In Figure 33, Curve 1 represents the radiation efficiency of the antenna in an embodiment in which a shielding structure is provided around the display structure and the touch layer edge is retracted. Specifically, a 0.5mm retracted touch layer edge results in a 1.6dB improvement in antenna radiation efficiency. Curve 2 represents the radiation efficiency of the antenna in an embodiment in which a shielding structure is not provided around the display structure and the touch layer edge is not retracted. It can be seen that the antenna in an embodiment in which a shielding structure is provided around the display structure and the touch layer edge is retracted has a better radiation efficiency. Therefore, by providing a shielding structure on the second surface and side surfaces of the display structure and retracting the touch layer edge, the present application can effectively address the problem of antenna absorption loss caused by the display structure, thereby improving the antenna's radiation efficiency.

[0148] It should be understood that in the various embodiments of the present application, the size of the serial numbers of the above-mentioned processes does not mean the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0149] The above description is only a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any changes or substitutions that can be easily conceived by any person skilled in the art within the technical scope disclosed in the present application should be included in the scope of protection of the present application. In the absence of conflict, the possible embodiments of the present application and the features of the possible embodiments can be combined with each other. Therefore, the scope of protection of the present application shall be based on the scope of protection of the claims.

Claims

1. A terminal device, characterized in that: include: The display structure comprises a first surface, a second surface and a side surface, wherein the first surface and the second surface are arranged opposite to each other, at least a part of the first surface constitutes a display surface of a screen of the terminal device, and an orientation of the side surface is different from an orientation of the first surface; A shielding structure, comprising a conductive material, the shielding structure comprising a first portion and a second portion, the first portion being located on a side of the second surface away from the first surface, the first portion covering at least a portion of the second surface, and the second portion being located at the periphery of the side surface and facing at least a portion of the side surface; and An antenna, comprising a radiator, wherein the radiator is located at the periphery of the side surface; The second portion is located between the radiator and the side surface to achieve at least partial signal isolation between the radiator and the display structure. In a direction perpendicular to the side surface, the distance between the radiator and the second portion is greater than the distance between the second portion and the side surface.

2. The terminal device according to claim 1, characterized in that: The second part and the first part are interconnected so that the shielding structure forms an integral film structure or a plate-like structure with folded edges.

3. The terminal device according to claim 1 or 2, characterized in that: The first part is attached to the second surface, in a first direction, the vertical distance between the first surface and the second surface is a first dimension, the height of the top end of the second part protruding relative to the first part is a second dimension, the first direction is a direction perpendicular to the second surface, the first dimension is less than or equal to the second dimension, and the top end of the second part is an end of the second part away from the first part.

4. The terminal device according to claim 3, characterized in that: The terminal device includes a cover plate and a side frame, the radiator is at least a part of the side frame, the cover plate is stacked on the outside of the first surface of the display structure and connected to the side frame, the inner surface of the cover plate is provided with an ink layer, the ink layer is correspondingly arranged on the edge of the first surface and the periphery of the edge, and there is a gap between the top of the second part and the ink layer.

5. The terminal device according to any one of claims 1 to 4, characterized in that: There is a gap between the second portion and the side surface of the display structure; or, the second portion is attached to the side surface of the display structure.

6. The terminal device according to any one of claims 1 to 5, characterized in that: The display structure includes a display layer and a touch layer, which are stacked with each other. The display layer is located between the touch layer and the first part. The vertical distance between the surface of the touch layer away from the display layer and the first part is less than or equal to the height of the top of the second part protruding relative to the first part. The top of the second part is the end of the second part away from the first part.

7. The terminal device according to claims 1-5, characterized in that: The display structure includes a display layer and a touch layer, the touch layer and the display layer are stacked, the display layer is located between the touch layer and the first portion, in a direction perpendicular to the side surface, an edge of the touch layer is retracted compared to an edge of the display layer, and a distance between the edge of the touch layer and the second portion is greater than a distance between the side surface and the second portion.

8. The terminal device according to claim 6, characterized in that: The edge of the touch layer is retracted inwardly from the edge of the display layer by a size range of 0.5 mm to 1 mm.

9. The terminal device according to claim 7 or 8, characterized in that: The vertical distance between the surface of the touch layer away from the display layer and the first part is less than or equal to the height of the top of the second part protruding relative to the first part, and the top of the second part is the end of the second part away from the first part.

10. The terminal device according to any one of claims 1 to 9, characterized in that: The conductive material of the shielding structure is at least one of stainless steel, silver paste, copper, and conductive cloth, or a combination of at least two of them.

11. The terminal device according to any one of claims 2 to 10, characterized in that: The second part is connected to the edge of the first part, and the second part forms a surrounding structure with an opening. The surrounding structure surrounds the first part, and the opening is used to avoid the components in the terminal device.

12. A terminal device, characterized in that: include: The display structure comprises a first surface and a second surface arranged opposite to each other, and a side surface connected between the first surface and the second surface, wherein at least a portion of the first surface constitutes a display surface of a screen of the terminal device, and the display structure comprises a display layer and a touch layer arranged in a stacked manner, wherein an edge of the touch layer is retracted relative to an edge of the display layer; and The antenna comprises a radiator, wherein the radiator is located at the periphery of the side surface and is spaced apart from the display structure, and in a direction perpendicular to the side surface, a distance between the radiator and an edge of the touch layer is greater than a distance between the radiator and an edge of the display layer.

13. The terminal device according to claim 12, characterized in that: The edge of the touch layer is retracted inwardly from the edge of the display layer by a size range of 0.5 mm to 1 mm.

14. The terminal device according to claim 12 or 13, characterized in that: The terminal device further includes a shielding structure, which includes a conductive material. Part of the shielding structure is located between the side surface and the radiator, and is used to isolate at least part of the signal between the radiator and the display structure.

15. The terminal device according to claim 14, characterized in that: The shielding structure comprises a first portion and a second portion, the first portion is connected to the second surface and covers at least a portion of the second surface, and the second portion is located at the periphery of the side surface; There is a gap between the second portion and the side surface of the display structure; or, the second portion is attached to the side surface of the display structure.

16. The terminal device according to claim 15, characterized in that: The vertical distance between the surface of the touch layer away from the display layer and the first part is smaller than the height of the top of the second part protruding relative to the first part, and the top of the second part is the end of the second part away from the first part.

17. A terminal device, characterized in that: include: A display structure, comprising a first surface and a second surface arranged opposite to each other, and a side surface connected between the first surface and the second surface, wherein at least a portion of the first surface constitutes a display surface of a screen of the terminal device, the display structure comprises a substrate, a main structure and an edge structure, the substrate comprises a top surface and a bottom surface arranged opposite to each other, the main structure and the edge structure are formed on the top surface of the substrate, the main structure comprises a display layer and a touch layer stacked in a direction perpendicular to the top surface, the edge structure is at least partially arranged around the periphery of the main structure, and the edge structure comprises a shielding wall, and in a direction perpendicular to the side surface, the shielding wall covers at least a portion of the main structure; and An antenna, comprising a radiator, wherein the radiator is located at the periphery of the side surface and is spaced apart from the display structure; In a direction perpendicular to the side surface, the shielding wall is located between the radiator and the main structure to achieve at least partial signal isolation between the radiator and the main structure, and the distance between the radiator and the shielding wall is greater than the distance between the shielding wall and the main structure.

18. The terminal device according to claim 17, characterized in that: The edge structure includes an isolation portion, which is located between the shielding wall and the main structure. The isolation portion specifically comprises a accommodating space, and the accommodating space is used to accommodate conductive material that flows from the main structure into the isolation portion during the process of manufacturing the main structure.

19. The terminal device according to claim 17 or 18, characterized in that: The display structure further includes a shielding layer, which is located on one side of the bottom surface of the substrate and covers at least a portion of the main structure.

20. The terminal device according to claim 19, characterized in that: The shielding layer is electrically connected to the shielding wall through a via hole on the substrate.

21. The terminal device according to any one of claims 17 to 20, characterized in that: The shielding wall forms a surrounding structure with an opening, and the display structure includes an edge routing, which is stacked on a side of the edge structure away from the substrate, and is electrically connected to the main structure. The edge routing passes through the opening and extends to the periphery of the edge structure.

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