Terminal device

Abstract

The invention discloses terminal equipment, which comprises a display structure, a shielding structure and an antenna, and is characterized in that a second part of the shielding structure is arranged on the periphery of the side surface of the display structure, and the second part is arranged between a radiator and the side surface of the antenna, so that signal isolation is realized, and the absorption loss of the display structure to the antenna is reduced. According to the application, the miniaturization and large screen-to-body ratio of the terminal equipment can be realized, and the performance of the antenna can be ensured.

Description

Technical Field

[0001] The present invention relates to the technical field of radio frequency communication, and in particular to a terminal device. Background Art

[0002] Terminal devices are small in size and compactly stacked, and have been pursuing miniaturization, lightness, and a large screen ratio to achieve better appearance and texture. Near the terminal antenna, it is inevitable that devices with poor conductivity and high loss appear, which are called lossy devices. Taking watches and mobile phones as examples, the screen is a typical representative of lossy devices. Lossy devices will cause the antenna radiation efficiency to be absorbed and the antenna performance to drop significantly. 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 uses the method of moving the radiator away from the lossy device to reduce absorption, but this method is becoming increasingly passive under the design demands of a large screen ratio.

[0003] Therefore, new antenna design technologies are urgently needed to solve the antenna design problem of miniaturized terminal devices with large screen-to-body ratio. Summary of the invention

[0004] 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.

[0005] In the first aspect, the embodiment of the present application provides a terminal device, the terminal device 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 oppositely, 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 part 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 away from the first surface, the first part covers at least part of the second surface, the second part is located on the periphery of the side surface and is arranged opposite to at least part of the side surface, and the antenna includes a radiator, and the radiator 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, and in the 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.

[0006] In the embodiment of the present application, by arranging the shielding structure around the display structure, covering the first part of the shielding structure on the second surface, and arranging the second part around the side surface and facing the side surface directly, the absorption loss of the display structure to the terminal device can be reduced. Specifically, the second part of the shielding structure is arranged around the side surface of the display structure and 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 signals 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, solving the problem of the absorption loss of the display structure to the antenna. Without the second part, since there is a conductive material in the display structure, the signal of the antenna radiator will be coupled to the display structure, a current will be excited on the display structure, and the display structure will absorb part of the signal of the antenna radiator, resulting in absorption loss.

[0007] In a possible implementation manner, the second part is interconnected with the first part so that the shielding structure forms an integral membrane structure or plate-like structure with a hem. By defining the interconnection relationship between the second part and the first part, the shielding structure forms an integral membrane structure or plate-like structure, and the connection between the first part and the second part forms the structure of the shielding cover, realizing the masking of the display structure, which is beneficial to reducing the absorption loss of the display structure and improving the performance of the antenna.

[0008] In a possible implementation manner, the first part is attached to the second surface, the first direction is the direction perpendicular to the second surface, in the first direction, the vertical distance between the first surface and the second surface is the first dimension, the height by which the top end of the second part protrudes relative to the first part is the second dimension, the first dimension is less than or equal to the second dimension, and the top end of the second part is the end of the second part away from the first part. By restricting the height by which the top end 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, the position of the top end of the second part is located above the first surface in the first direction, realizing that the height by which the second part protrudes relative to the first part protrudes above the first surface of the display structure, and realizing that in the direction perpendicular to the side surface, the second part completely shields the display structure around the side surface. This solution is beneficial to reducing the absorption loss of the display structure and improving the performance of the antenna.

[0009] In a possible implementation, the terminal device includes a cover plate and a side frame. The radiator is at least part of the side frame. The cover plate is stacked outside the first surface of the display structure and connected to the side frame. An ink layer is provided on the inner surface of the cover plate. The ink layer is correspondingly provided at the edge of the first surface and the periphery of the edge. There is a gap between the top end of the second part and the ink layer. By forming a gap between the top end of the second part and the ink layer in this solution, it can be achieved that during the assembly of the shielding structure, the second part is prevented from scraping against the ink layer, ensuring the safety of the ink layer and preventing it from being scratched.

[0010] In a possible implementation, there is a gap between the second part and the side surface of the display structure. This solution provides a design scheme where the shielding structure is a shielding cover independent of the display structure. By forming a gap between the second part and the side surface, during the assembly of the shielding structure and the display structure, the second part is prevented from scraping against the side surface. The side surface of the display structure is a stress concentration position, and the scraping of the second part is likely to cause phenomena such as cracks at the edge of the display structure. Therefore, this solution is beneficial to ensure the safety of the display structure.

[0011] In a possible implementation, based on the solution of maintaining a gap between the second part and the side surface, in the design of realizing that the shielding structure is a separate shielding cover structure, the terminal device further includes a Near Field Communication (NFC) antenna. The Near Field Communication (NFC) antenna is attached to the second surface of the display structure. The first part of the shielding structure is attached to the second surface, and the Near Field Communication (NFC) antenna is clamped between the first part and the second surface. The Flexible Printed Circuit (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.

[0012] In a possible implementation, the second part is attached to the side surface of the display structure. This solution provides a design scheme where the shielding structure is a coating or film structure formed on the outer surface of the display structure by spraying. In this solution, the second part and the side surface are attached, which is beneficial to reduce the volume of the shielding structure and the display structure, and can also expand the clearance of the antenna, which is beneficial to improving the performance of the antenna.

[0013] In a possible implementation, based on the design that the shielding structure is sprayed on the second surface and the side surface of the display structure by spraying a metal material, the metal material sprayed on the side surface 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 attached by an optical adhesive. The edge of the cover plate extends beyond the edge of the display structure. The top of the second part covers part of the inner surface of the cover plate, and the width of the second part covering the inner surface of the cover plate is controlled within 0.2 mm to ensure good clearance for the antenna.

[0014] In a possible implementation, the second surface of the display structure is attached to the NFC antenna, the FPC layer of the display structure is stacked on the second surface, and the near field communication (NFC) antenna is clamped between the FPC and the second surface. 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, and 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 main board of the terminal device.

[0015] In a possible implementation, 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 part, and 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 by which the top end of the second part protrudes relative to the first part. The top end of the second part is the end of the second part away from the first part. In this solution, the display structure is refined into a display layer and a touch layer, and the height of the second part is constrained to be greater than or equal to the thickness of the display layer, and signal coupling is reduced by shielding the display layer.

[0016] In a possible implementation, 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 part, and in the direction perpendicular to the side surface, the edge of the touch layer is retracted inward compared to the edge of the display layer, and the distance between the edge of the touch layer and the second part is greater than the distance between the side surface and the second part. This solution is based on the setting of the shielding structure, and the edge of the touch layer is retracted inward relative to the edge of the display layer. The retraction of the touch layer can enhance the effect of reducing the absorption loss of the display structure.

[0017] In a possible implementation, the size range of the inward retraction of the edge of the touch layer compared to the edge of the display layer is: 0.5 mm - 1 mm. By constraining the size range of the inward retraction of the touch layer, on the one hand, it ensures that the touch function of the touch layer itself is not affected, and on the other hand, it also provides a suitable range, which has a promoting effect on reducing the absorption loss.

[0018] In a possible implementation, there is a spacer layer structure between the touch layer and the display layer, and the thickness of the spacer layer structure is 0.3 mm. Through the setting of the spacer layer and the constraint of the thickness, it is beneficial to easily ensure the product yield in the manufacturing process of the display structure.

[0019] In a possible implementation, 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 by which the top end of the second part protrudes relative to the first part, where the top end of the second part is the end of the second part away from the first part. By defining that the height by which the second part protrudes on the side periphery exceeds the touch layer, the shielding effect is improved in this solution.

[0020] In a 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 of them. This solution provides various materials for the shielding structure, making the shielding structure easy to fabricate and implement, and also ensuring the function of reducing the absorption loss of the display structure through these materials.

[0021] In a possible implementation, 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 components in the terminal device. Through the design of the second part surrounding to form an opening, this solution is used to avoid other components, such as FPC, etc. in the terminal device using this opening, which is beneficial to the thin design of the terminal device.

[0022] In a second aspect, the present application provides a terminal device, including a display structure and an antenna. 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 part of the first surface constitutes the display surface of the screen of the terminal device. The display structure includes a display layer and a touch layer arranged in a stacked manner, and the edge of the touch layer is recessed compared with the edge of the display layer. The antenna includes a radiator, and the radiator is located on the periphery of the side surface and is spaced from the display structure. 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.

[0023] Through the solution that the edge of the touch layer of the display structure is recessed compared with the edge of the display layer, this solution reduces the coupling of the signal of the radiator of the antenna by the display structure and improves the performance of the antenna. Specifically, the touch lines in the touch layer are intertwined and distributed, and the distance between the edge of the touch layer and the radiator increases, so that the signal of the antenna coupled on the touch layer can be reduced. Therefore, this solution can reduce the absorption loss of the antenna signal by the display structure.

[0024] In a possible implementation, the range of the size by which the edge of the touch layer is recessed compared with the edge of the display layer is: 0.5 mm - 1 mm. By restricting the range of the size of the recess of the touch layer, on the one hand, it ensures that the touch function of the touch layer itself is not affected, and on the other hand, it also provides a suitable range, which has a promoting effect on reducing the absorption loss.

[0025] In a possible implementation, the terminal device further includes a shielding structure, which is made of 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 signals between the radiator and the display structure. By providing the shielding structure and arranging part of the shielding structure between the side surface and the radiator, this solution can reduce the absorption loss of the display structure to the terminal device. Specifically, part of the shielding structure is arranged around the periphery of the side surface of the display structure and is located between the side surface and the radiator. Since the shielding structure is made of a conductive material, the conductive material can isolate the signals between the side surface and the antenna radiator. It can be understood that the existence of part of the shielding structure can reduce the coupling of the signals of the antenna radiator to the display structure, and solves the problem of the absorption loss of the display structure to the antenna. Without this part of the shielding structure, since the display structure contains conductive materials, the signals of the antenna radiator will be coupled to the display structure, currents will be induced on the display structure, and the display structure will absorb part of the signals of the antenna radiator, resulting in absorption loss.

[0026] In a 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 part of the second surface, and the second part is located around 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. The design of forming a gap between the second part and the side surface of the display structure in this solution is beneficial to ensuring the safety of the display structure. During the process of assembling the shielding structure and the display structure, it can avoid the second part scratching the side surface. The side surface of the display structure is a position where stress concentration occurs, and scratching by the second part is likely to form cracks at the edge of the display structure and other phenomena. The design of attaching the second part to the side surface of the display structure in this solution is beneficial to reducing the volume of the shielding structure and the display structure, and can also expand the clearance of the antenna, which is beneficial to improving the performance of the antenna.

[0027] In a possible implementation, based on the design that the shielding structure is sprayed on the second surface and the side surface of the display structure by spraying a metal material, the metal material sprayed on the side surface 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 adhered by an optical adhesive. The edge of the cover plate extends beyond the edge of the display structure, and 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 for the antenna.

[0028] In a possible implementation, based on the solution of maintaining a gap between the second part and the side surface, in the design where the shielding structure is a separate shielding cover structure, the terminal device further includes a Near Field Communication (NFC) antenna. The Near Field Communication (NFC) antenna is attached to the second surface of the display structure, the first part of the shielding structure is attached to the second surface, and the Near Field Communication (NFC) antenna is clamped between the first part and the second surface. The Flexible Printed Circuit (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.

[0029] In a possible implementation, the vertical distance between the surface of the touch layer away from the display layer and the first part is less than the height by which the top end of the second part protrudes relative to the first part. The top end of the second part is the end of the second part away from the first part. This solution improves the shielding effect by defining that the height by which the second part protrudes around the side periphery exceeds that of the touch layer.

[0030] In a third aspect, the present application provides a terminal device. The terminal device includes a display structure and an antenna. 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 part of the first surface constitutes the display surface of the screen of the terminal device. The display structure 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 at least partially surrounds the periphery of the main structure. The edge structure includes a shielding wall. In a direction perpendicular to the side surface, the shielding wall covers at least part of the main structure. The antenna includes a radiator. The radiator is located outside 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. The distance between the radiator and the shielding wall is greater than the distance between the shielding wall and the main structure.

[0031] In this solution, the shielding wall is fabricated inside the display structure through the manufacturing process of the display structure and is integrally formed with the display structure, eliminating the need for additional assembly and reducing the risk of damage to the display structure during the assembly process. At the same time, the shielding wall is closer to the main part inside the display structure, providing clearance for the antenna and facilitating the improvement of the antenna performance.

[0032] In a possible implementation, the edge structure includes an isolation part, the isolation part is located between the shielding wall and the main body structure, the isolation part specifically has a receiving space, and the receiving space is used to receive the conductive material that flows from the main body structure into the isolation part during the manufacturing process of the main body structure. In the specific implementation manner, during the manufacturing process of the main body structure, the conductive material can be printed on the substrate through manufacturing processes such as spraying and printing. Since the conductive material is in a liquid state and has fluidity during the manufacturing process. In this solution, an isolation part is provided in the area between the edge of the shielding wall and the main body structure. The isolation part is similar to a dam structure and can prevent the conductive material from flowing to the position of the shielding wall.

[0033] In a possible implementation, the display structure further includes a shielding layer, the shielding layer is located on one side of the bottom surface of the substrate, and the shielding layer covers at least part of the main body structure. The shielding layer is disposed at intervals between the circuit board and the display structure, and the shielding layer can reduce the loss caused by the signal absorption of the display structure to the radio frequency lines on the circuit board.

[0034] In a possible implementation, the shielding layer is electrically connected to the shielding wall through a via hole on the substrate.

[0035] In a possible implementation, the shielding wall forms a surrounding structure with an opening. The display structure includes edge traces, the edge traces are stacked on the side of the edge structure away from the substrate, the edge traces are electrically connected to the main body structure, and the edge traces pass through the opening and extend to the periphery of the edge structure.

[0036] In a fourth aspect, an embodiment of the present application provides a display module. The display module includes a display structure and a shielding structure. The display structure includes a first surface and a second surface that are oppositely arranged, and a side surface connected between the first surface and the second surface. At least part 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 connected to the second surface and covers at least part of the second surface, and the second part is located outside the periphery of the side surface and is spaced and oppositely arranged with the side surface; the second part is used to isolate at least part of the signal between the display structure and the radiator of the antenna of the terminal device.

[0037] In a fifth aspect, an embodiment of the present application provides a display module. The display module includes a first surface and a second surface that are oppositely arranged, and a side surface connected between the first surface and the second surface. At least part of the first surface constitutes the display surface of the screen of the terminal device. The display module includes a display layer and a touch layer that are stacked, and the edge of the touch layer is retracted compared to the edge of the display layer.

[0038] Sixth aspect, an embodiment of the present application provides a display module. The display module includes a first surface and a second surface disposed opposite to each other, and a side surface connected between the first surface and the second surface. At least a part of the first surface constitutes a display surface of a screen of a 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 disposed 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. At least a part of the edge structure surrounds the periphery of the main structure. The edge structure includes a shielding wall. In a direction perpendicular to the side surface, the shielding wall covers at least a part of the main structure. Description of the Drawings

[0039] Figure 1 Partial schematic diagram of a terminal device provided by an embodiment of the present application;

[0040] Figure 2 Partial schematic diagram of a terminal device provided by an embodiment of the present application;

[0041] Figure 3 Schematic diagram of a plane where a display screen of a terminal device provided by an embodiment of the present application is located;

[0042] Figure 4 Schematic diagram of a plane where a display screen of a terminal device provided by an embodiment of the present application is located;

[0043] Figure 5 Schematic diagram of a terminal device provided by an embodiment of the present application;

[0044] Figure 6 Schematic diagram of a terminal device provided by an embodiment of the present application;

[0045] Figure 7A Schematic diagram of a terminal device provided by an embodiment of the present application;

[0046] Figure 7B Partial enlarged schematic diagram of a terminal device provided by an embodiment of the present application;

[0047] Figure 7C Partial enlarged schematic diagram of a terminal device provided by an embodiment of the present application;

[0048] Figure 8 Schematic diagram of a specific structural design between a display structure and a shielding structure in a terminal device provided by an embodiment of the present application;

[0049] Figure 9ASchematic diagram of the specific structural design between the display structure and the shielding structure in the terminal device provided by an embodiment of the present application;

[0050] Figure 9B Schematic diagram of the specific structural design between the display structure and the shielding structure in the terminal device provided by an embodiment of the present application;

[0051] Figure 10 Schematic diagram of the terminal device provided by an embodiment of the present application;

[0052] Figure 11 For Figure 10 Partial enlarged schematic diagram of the display structure provided by an embodiment within the terminal device shown;

[0053] Figure 12 For Figure 10 Planar schematic diagram of the display structure provided by an embodiment within the terminal device shown;

[0054] Figure 13 Schematic diagram of the terminal device provided by an embodiment of the present application;

[0055] Figure 14 For Figure 13 Cross-sectional view of the terminal device shown;

[0056] Figure 15 For Figure 14 Enlarged schematic diagram of part I in;

[0057] Figure 16 For Figure 13 Three-dimensional schematic diagram of the shielding structure in the terminal device shown;

[0058] Figure 17 For Figure 16 Enlarged schematic diagram of part II in;

[0059] Figure 18 Schematic diagram of the terminal device provided by an embodiment of the present application;

[0060] Figure 19 For Figure 18 Cross-sectional view of the terminal device shown;

[0061] Figure 20 For Figure 19 Enlarged schematic diagram of part III in;

[0062] Figure 21 For Figure 18 Three-dimensional schematic diagram of the shielding structure in the terminal device shown;

[0063] Figure 22 For Figure 21Enlarged schematic diagram of part IV;

[0064] Figure 23A Structural schematic diagrams of five different test schemes;

[0065] Figure 23B Based on Figure 23A Simulated curve graph of the absorption loss of the radiator generated by the five schemes shown;

[0066] Figure 24 Based on Figure 23A Curve comparison graph of the absorption loss generated by materials with different structures of Scheme 4 shown;

[0067] Figure 25 Based on Figure 23A Curve comparison graph of the absorption loss generated by materials with different structures of Scheme 5 shown;

[0068] Figure 26 For Figure 23A Schematic diagram of the antenna current and electric field distribution in Scheme 2 in;

[0069] Figure 27 For Figure 23A Schematic diagram of the antenna current and electric field distribution in Scheme 5 in;

[0070] Figure 28 Comparison of the S11 curve graph of the antenna system in the scheme with a shielding structure in the specific implementation manner of this application and the S11 curve graph of the antenna system of the terminal device without a shielding structure;

[0071] Figure 29 Comparison of the curve graph of the radiation efficiency of the antenna system in the scheme with a shielding structure in the specific implementation manner of this application and the curve graph of the radiation efficiency of the antenna system of the terminal device without a shielding structure;

[0072] Figure 30 Comparison of the S11 curve graph of the antenna system in the scheme with an edge shrinkage of the touch layer in the specific implementation manner of this application and the S11 curve graph of the antenna system in the scheme without designing the edge shrinkage of the touch layer in the display structure;

[0073] Figure 31 Comparison of the curve graph of the radiation efficiency of the antenna system in the scheme with an edge shrinkage of the touch layer in the specific implementation manner of this application and the curve graph of the radiation efficiency of the antenna system in the scheme without designing the edge shrinkage of the touch layer;

[0074] Figure 32 Comparison of the S11 curve graph of the antenna system in the scheme with a shielding structure and an edge shrinkage of the touch layer in the specific implementation manner of this application and the S11 curve graph of the antenna system in the scheme without a shielding structure and without designing the edge shrinkage of the touch layer in the display structure;

[0075] Figure 33 This is a comparison of the radiation efficiency of the antenna system in the solution with a shielding structure and an edge-inwardly retracted touch layer in the specific implementation manner of this application and the radiation efficiency of the antenna system in the solution without a shielding structure and without designing the touch layer to be retracted, presented in the form of a graph. Specific implementation manner

[0076] Term explanation:

[0077] Radiator (or antenna stub): It is a device in the antenna used to receive / transmit electromagnetic wave radiation. In some cases, "antenna" is narrowly understood as the radiator (or antenna stub), which converts the guided wave energy from the transmitter into radio waves, or converts radio waves into guided wave energy, for radiating and receiving radio waves. The modulated high-frequency current energy (or guided wave energy) generated by the transmitter is transmitted through the feeder line to the transmitting radiator (or antenna stub), and through the radiator (or antenna stub), it is converted into electromagnetic wave energy of a certain polarization and radiated in the required direction. The receiving radiator (or antenna stub) converts the electromagnetic wave energy of a certain polarization from a specific direction in space back into modulated high-frequency current energy, which is then transmitted through the feeder line to the input end of the receiver.

[0078] The radiator (or antenna stub) may include a conductor having a specific shape and size, such as linear, sheet-like, etc., and the present application does not limit the specific shape. In one embodiment, the linear radiator (or antenna stub) may be simply referred to as a wire 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 stub) may be implemented by a support conductor and may also be referred to as a support antenna. In one embodiment, the wire diameter (e.g., including thickness and width) of the linear radiator, or the radiator of the wire antenna, is much smaller than the wavelength (e.g., the dielectric wavelength) (e.g., less than 1 / 16 of the wavelength), and the length may be comparable to the wavelength (e.g., the dielectric wavelength) (e.g., the length is around 1 / 8 of the wavelength, or 1 / 8 to 1 / 4, or 1 / 4 to 1 / 2, or longer). The main forms of wire antennas include dipole antennas, half-wave dipole antennas, monopole antennas, loop antennas, inverted-F antennas (also known as IFA, Inverted F Antenna), and planar inverted-F antennas (also known as PIFA, Planar Inverted F Antenna). For example, for a dipole antenna, each dipole antenna typically includes two radiating stubs, and each stub is fed by a feeding portion from the feeding end of the radiating stub. For example, an inverted-F antenna (Inverted-F Antenna, IFA) can be regarded as obtained by adding a grounding path to a monopole antenna. The IFA antenna has a feeding point and a grounding point, and is called an inverted-F antenna because its side view is in the shape of an inverted F. In one embodiment, the sheet-like radiator (or antenna stub) may include a microstrip antenna or a patch antenna. In one embodiment, the sheet-like radiator (or antenna stub) may be implemented by a planar conductor (such as a conductive sheet or a conductive coating, etc.). In one embodiment, the sheet-like radiator (or antenna stub) may include a conductive sheet, such as a copper sheet, etc. In one embodiment, the sheet-like radiator (or antenna stub) may include a conductive coating, such as silver paste, etc. The shapes of the sheet-like 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 stub), and a ground plane, where the dielectric substrate is disposed between the radiator (or antenna stub) and the ground plane.

[0079] The radiator (or antenna stub) may also include slots or slits formed on a conductor, for example, closed or semi-closed slots or slits formed on a grounded conductor surface. In one embodiment, the slotted or slit radiator may be simply referred to as a slot antenna or a slit antenna. In one embodiment, the radial dimension (e.g., including width) of the slot or slit of the slot antenna / slit 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 may be comparable to the wavelength (e.g., the dielectric wavelength) (e.g., the length is around 1 / 8 of the wavelength, or 1 / 8 to 1 / 4, or 1 / 4 to 1 / 2, or longer). In one embodiment, the radiator with a closed slot or slit may be simply referred to as a closed slot antenna. In one embodiment, the radiator with a semi-closed slot or slit (e.g., adding an opening to a closed slot or slit) may be simply referred to as an open slot antenna. In some embodiments, the shape of the slit is elongated. In some embodiments, the length of the slit is about half a wavelength (e.g., the dielectric wavelength). In some embodiments, the length of the slit is about an integer multiple of the wavelength (e.g., one dielectric wavelength). In some embodiments, the slit may be fed by a transmission line bridging one or both of its sides. Thus, a radio frequency electromagnetic field is excited on the slit and radiates electromagnetic waves into space. In one embodiment, the radiator of the slot antenna or slit antenna may be implemented by a conductive frame grounded at both ends, and may also be referred to as a frame antenna; in this embodiment, it can be considered that the slot antenna or slit antenna includes a linear radiator, which is spaced from the floor and grounded at both ends of the radiator, thereby forming a closed or semi-closed slot or slit. In one embodiment, the radiator of the slot antenna or slit antenna may be implemented by a support conductor grounded at both ends, and may also be referred to as a support antenna.

[0080] The feed source / feed circuit is a combination of all circuits for receiving and transmitting radio frequency signals. The feed circuit may include a transceiver and a radio frequency front end circuit (RF front end). In some cases, when understood narrowly, the "feed circuit" is the radio frequency integrated circuit (RFIC). The RFIC can be considered to include a radio frequency 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.

[0081] The terms "first", "second", etc. are used only for descriptive purposes and cannot be construed as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first", "second", etc. may explicitly or implicitly include one or more of such features.

[0082] The possible embodiments of the present application will be described below with reference to the accompanying drawings in the possible embodiments of the present application.

[0083] A specific embodiment of the present application provides a terminal device, which includes a display module and an antenna. The antenna includes a radiator. A circuit board is provided inside the terminal device, and a radio frequency chip and a feeding structure electrically connected to the radio frequency chip are provided on the circuit board. The radiator and the feeding structure are electrically connected, and the radiator is excited to generate current and resonance. The radiator of the antenna is located at the periphery of the side of the display module.

[0084] In one embodiment, the radiator is located on the frame of the terminal device. 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. That is to say, the side of the display module cannot be too far from the radiator. If the display module is far from the radiator, there will be a large-sized frame around the display screen of the terminal device, the screen-to-body ratio is small, which affects the appearance of the terminal device and the customer experience is poor. While ensuring that the display module of the terminal device has a large screen-to-body ratio, the display module will absorb part of the signal of the antenna radiator, causing absorption loss of the antenna by the display module and affecting the performance of the antenna. Specifically, since the main conductive material inside the display module is ITO (indium tin oxide), its conductivity is low and the trace is thin (about 2um), which will form absorption loss to the electromagnetic wave signal radiated by the antenna radiator.

[0085] To achieve a large screen-to-body ratio and reduce the absorption loss of the antenna by the display module is the problem to be solved by the present application. The present application can reduce the absorption loss of the antenna by the display module by improving the design of the structure of the display module. The present application includes at least the following three specific embodiments.

[0086] 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. The shielding structure located on the side realizes the isolation between the antenna radiator and the display structure, reduces the signal coupling between the display structure and the antenna radiator, and thus can reduce the absorption loss of the antenna by the display module. The shielding structure located at the bottom can also realize the isolation between the display structure and a part of the antenna at the bottom of the display structure, reduce the signal coupling, and thus can reduce the absorption loss of the antenna by the display module.

[0087] In the second embodiment, the embodiment of the present application reduces the absorption of the antenna radiation by the display module by shrinking 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, without affecting the touch experience.

[0088] In the third implementation manner, in the manufacturing and encapsulation processes of the display module in this application embodiment, the screen wall is fabricated at the edge structure of the display structure. From a structural perspective, the screen wall is built into the display structure and is located on the periphery of the main structure of the display structure. The main structure includes functional layers such as a conductive layer. By forming the shielding wall, the absorption loss of the antenna by the main structure of the display module is reduced.

[0089] The following describes the possible implementation manners of this application with reference to the drawings in the possible implementation manners of this application.

[0090] Figure 1 This is a partial schematic diagram of a terminal device provided in an implementation manner of this application. Refer to Figure 1 , the terminal device 1000 includes a display structure 10, a shielding structure 20, an antenna 30, and a circuit board 40.

[0091] Refer to Figure 1 , in one implementation manner, the display structure 10 is a display screen with a display function. The display structure 10 has a conductive material, and the conductive material can be, but is not limited to, ITO (indium tin oxide). For example, the display structure 10 has circuit wirings, pixel circuits, etc. inside, and these circuits are composed of the conductive material. The conductive material has the characteristics of low conductivity and thin traces. For example, the conductivity of the conductive material can be 10^3 S / m. The conductive material forms absorption loss for the radiation of the antenna. In one implementation manner, the display structure 10 may include a display layer (for example: OLED (Organic Light-Emitting Diode, organic light-emitting diode layer)) and a touch layer. The display structure 10 includes a first surface S1 and a second surface S2 that are oppositely arranged. At least a part 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 surface of the display structure 10. The second surface S2 faces the inside of the terminal device 1000 and the rear cover ( Figure 1 the rear cover is not shown in the figure. The rear cover is located on the side of the circuit board 40 away from the display structure 10), and the rear cover is a part of the outer shell of the terminal device opposite to the display screen. The display structure 10 further includes a side surface S3, and the side surface S3 and the first surface S1 face different directions. In a specific implementation manner, the side surface S3 may face the frame of the terminal device 1000 ( Figure 1 in the figure, the radiator 32 is at least part of the frame), and the side surface S3 may be connected between the first surface S1 and the second surface S2.

[0092] Refer to Figure 1, 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 part 21 and a second part 22. The first part 21 is connected to the second surface S2 and covers at least a part of the second surface S2. The second part 22 is located around the side surface S3 and is disposed opposite to at least a part of the side surface S3. The first part 21 and the second surface S2 can be directly attached, or other layer structures can be provided between the first part 21 and the second surface S2 to achieve the connection between the two by indirect attachment. In one embodiment, the second part 22 can be connected to the edge of the first part 21, and the two are interconnected to form an integral structure, so that the shielding structure 20 forms an integral film structure or plate-like structure with a hem.

[0093] In other embodiments, the second part 22 can also be independent of the first part 21, that is, the two are not connected. For example, both the first part 21 and the second part 22 are 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 (such as the middle frame) in the terminal device and extends to the periphery of the side surface S3 of the display structure 10.

[0094] Refer to Figure 1 , there is a gap G1 between the second part 22 and the side surface S3. In one embodiment, the shielding structure 20 and the display structure 10 are independent of each other, but the two are assembled into one. During the assembly process, the first part 21 of the shielding structure 20 is attached to the second surface S2, so that the second part 22 and the side surface S3 are spaced opposite to each other. The design of maintaining the gap G1 between the second part 22 and the side surface S3 is beneficial to prevent the second part 22 from colliding or rubbing against the side surface S3 of the display structure 10 during the process of assembling the shielding structure 20 to the display structure 10, and protect the safety of the side surface S3 of the display structure 10. The gap G1 (the spacing distance in the direction perpendicular to the side surface) between the second part 22 and the side surface S3 needs to be greater than or equal to a preset value. For example, the preset value is 0.1 mm. This preset value is the minimum value of the gap between the second part 22 and the side surface S3. The design of the preset value can be set according to the tolerance range of the specific assembly process. If the assembly equipment has a high precision, the preset value can be made as small as possible. By making the gap G1 between the second part 22 and the side surface S3 greater than or equal to the preset value, the assembly tolerance or operation error brought by the assembly process can be absorbed through this gap G1, avoiding the collision or rubbing between the second part 22 and the side surface S3 of the display structure 10, protecting the display structure 10, and reducing the risk of cracks at the edge.

[0095] Refer to Figure 1, the antenna 30 includes a feeding circuit 31 and a radiator 32. The feeding circuit 31 is disposed on a circuit board 40, and a radio frequency chip 50 may also be disposed on the circuit board 40. The feeding circuit 31 and the radio frequency chip 50 are electrically connected. In one embodiment, the feeding circuit 31 and the radio frequency chip 50 may be disposed on the same circuit board 40. In one embodiment, the feeding circuit 31 and the radio frequency chip 50 may also be located on different circuit boards. For example, the radio frequency chip 50 is disposed on the main board of the terminal device, and the feeding circuit 31 is located on a small board within the terminal device. The main board and the small board are separately disposed at different positions within the terminal device. The radiator 32 is located at the periphery of the side surface 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 feeding circuit 31 are electrically connected. For example, the radiator 32 can be electrically connected to the feeding circuit 31 through a conductive elastic sheet.

[0096] Figure 1 In the illustrated embodiment, a partial area of the radiator 32 is located at the periphery of the display structure 10, and a second portion 22 is also located in a partial area at the periphery of the display structure 10. The second portion 22 is located between the radiator 32 and the side surface S3 of the display structure 10. The second portion 22 is used to achieve at least partial isolation of the signals between the display structure 10 and the radiator 32, reduce the signal coupling therebetween, and reduce the absorption loss of the display structure 10 to the antenna 30.

[0097] In one embodiment, in the direction perpendicular to the side surface S3 of the display structure 10 (i.e., the first direction A1), or in the radial direction of the display surface of the display structure 10 (the direction radiating from the center to the periphery, i.e., the first direction A1), the dimension range of the vertical distance D1 between the second portion 22 and the radiator 32 is: greater than or equal to 0.3 mm and less than or equal to 3.3 mm; the dimension range of the vertical distance D2 between the second portion 22 and the side surface S3 of the display structure 10 is: greater than or equal to a preset value (for example, greater than or equal to 0.1 mm) and less than or equal to 0.3 mm. In this solution, by bringing the second portion 22 of the shielding structure 20 close to the side surface S3 of the display structure 10, it is possible to ensure that the shielding structure 20 and the radiator 32 maintain an appropriate distance, reducing the influence of the second portion 22 on the clearance of the radiator 32. Since the shielding structure 20 includes a conductive material and the shielding structure 20 is a conductor structure, arranging the shielding structure 20 around the radiator 32 will affect the clearance of the radiator 32 and the performance of the antenna 30 for transmitting and receiving signals. Therefore, it is necessary to ensure that the distance between the second portion 22 and the radiator 32 is within an appropriate range, such that the degree of influence of the second portion 22 on the radiator 32 is less than the benefit brought by 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, due to the greater benefit generated by isolating the signal coupling between the display structure 10 and the radiator 32, it is possible to achieve an overall improvement in the performance of the antenna 30 in this application.

[0098] Figure 2 Partial schematic diagram of a terminal device provided in an embodiment of this application. Figure 2 The embodiment shown is different from Figure 1 the embodiment shown in that: Figure 2 In the embodiment shown, the radiators 32 are distributed outside the display structure 10, and there are radiators 32 on both sides of the display structure 10, and Figure 2 the radiators 32 on both sides of the display structure 10 are interconnected into an integrated structure; the second portions 22 on the peripheries of the opposite side surfaces S3 of the display structure 10 are interconnected into an integrated body. It can be understood that in this embodiment, the radiators 32 at least semi-surround the display structure 10, and the radiators 32 can also surround the display structure 10 in a completely surrounding manner. Correspondingly, the second portions 22 also at least semi-surround the side surface S3 of the display structure 10, and the second portions 22 can also surround the side surface S3 of the display structure 10 in a completely surrounding manner.

[0099] Figure 3 Schematic diagram of the plane where the display screen of the terminal device 1000 provided in an embodiment of this application is located. Refer to Figure 3, In one implementation, the display screen of the terminal device 1000 is rectangular. The terminal device 1000 can be a watch or other terminals such as a mobile phone or a tablet. The display structure 10 is rectangular, the second part 22 is in the shape of a rectangular frame and surrounds the periphery of the display structure 10, and the radiator 32 is in the shape of a rectangular frame and surrounds the periphery of the second part 22.

[0100] Figure 4 FIG. is a schematic diagram of the plane where the display screen of the terminal device 1000 provided by an implementation of the present application is located. Refer to Figure 4 , In one implementation, the display screen of the terminal device 1000 is circular. The display structure 10 is circular, the second part 22 is in the shape of a circular ring and surrounds the periphery of the display structure 10, and the radiator 32 is in the shape of a circular ring and surrounds the periphery of the second part 22.

[0101] Figure 5 FIG. is a schematic diagram of the terminal device 1000 provided by an implementation of the present application. Refer to Figure 5 , The terminal device 1000 includes a housing 100. The housing 100 includes a housing body 60 and a cover plate 70. The housing body 60 encloses to form a receiving space 601 with an opening. The cover plate 70 is located at the opening of the receiving space 601 and is connected to the housing body 60. In one implementation, the cover plate 70 is made of a light-transmitting material, for example, glass, sapphire, etc. The housing body 60 includes a frame 62 and a rear cover 61. The rear cover 61 and the cover plate 70 are disposed opposite to each other. The frame 62 surrounds the peripheries of the rear cover 61 and the cover plate 70. The frame 62 is used to dispose the radiator 32 of the antenna 30 in the terminal device 1000. It can also be understood that the frame 62 constitutes the radiator 32 of the antenna 30. The display structure 10, the shielding structure 20, and the circuit board 40 of the terminal device 1000 are disposed in the receiving space 601. The display structure 10 is located inside the cover plate 70, and the circuit board 40 is located between the display structure 10 and the rear cover 61. In this implementation, the first part 21 of the shielding structure 20 is located at the bottom of the display structure 10. The first part 21 is located between the circuit board 40 and the display structure 10. The first part 21 can reduce the loss caused by the signal absorption of the radio frequency lines on the circuit board 40 by the display structure 10. The second part 22 of the shielding structure 20 surrounds the periphery of the side surface S3 of the display structure 10. The second part 22 can reduce the loss caused by the signal absorption of the radiator 32 by the display structure 10.

[0102] Figure 5In the illustrated embodiment, the display structure 10 and the cover plate 70 can be adhered with an optical adhesive, and an optical film can also be provided between the display structure 10 and the cover plate 70. For example, a filter, a polarizer, etc. The inner surface of the cover plate 70 has an ink layer 72, and the ink layer 72 is used to block the circuit at the edge of the display structure 10. There is a gap G2 between the second portion 22 and the ink layer 72, and the setting of the gap G2 between the second portion 22 and the ink layer 72 can prevent contact between the second portion 22 and the ink layer 72 and prevent the second portion 22 from scratching the ink layer 72.

[0103] Figure 6 Schematic diagram of a terminal device provided by an embodiment of the present application. Refer 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 relatively arranged first surface S1 and a second surface S2 and a side surface S3 connected between the first surface S1 and the second surface S2. At least a part of the first surface S1 constitutes the display surface of the screen of the terminal device 1000. In one embodiment, the terminal device 1000 further includes a shielding structure 20, and the shielding structure 20 includes a conductive material. One side of the second surface S2 of the display structure 10 has a shielding structure 20, the circuit board 40 is located below the second surface S2 of the display structure 10, and the shielding structure 20 is located between the second surface S2 of the display structure 10 and the circuit board 40. The antenna 30 includes a feeding circuit 31 and a radiator 32, the feeding circuit 31 is arranged on the circuit board 40, and the radiator 32 is arranged around the periphery of the side surface S3 of the display structure 10. The shielding structure 20 is used to reduce the signal coupling between the display structure 10 and the feeding circuit 31 of the antenna 30 and reduce the absorption loss of the display structure 10 to the antenna.

[0104] Refer to Figure 6, the display structure 10 includes a display layer 11 and a touch layer 12 arranged in a stacked manner, and the edge of the touch layer 12 is recessed inward compared to the edge of the display layer 11. The side surface 11S of the display layer 11 and the side surface 12S of the touch layer 12 respectively constitute part of the side surface S3 of the display structure 10. In the direction perpendicular to the side surface S3 (i.e., the first direction A1), the vertical distance D3 between the radiator 32 and the edge of the touch layer 12 is greater than the vertical distance D4 between the radiator 32 and the edge of the display layer 11. For the display structure 10, in the edge region, the touch function is less applied. Therefore, the edge of the touch layer 12 is recessed inward compared to the display layer 11, and the recessed dimension is kept within a suitable range, which will not affect the touch function of the display structure 10. The inward recess of the edge of the touch layer 12 increases the spacing distance between the circuits in the touch layer 12 and the radiator 32, and can reduce the absorption loss of the touch layer 12 to the radiator 32. Therefore, through the inward recess of the edge of the touch layer 12 compared to the edge of the display layer 11, this solution can reduce the signal coupling between the display structure 10 and the radiator 32 and reduce 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.

[0105] In this embodiment, in the direction perpendicular to the side surface S3, the dimension range of the vertical distance D3 between the edge of the touch layer 12 and the radiator 32 is: 0.9 - 4.6 mm. The dimension range of the vertical distance D4 between the edge of the display layer 11 and the radiator 32 is: 0.4 - 4.1 mm. In one embodiment, the range of the dimension (D3 - D4) by which the edge of the touch layer 12 is recessed inward compared to the edge of the display layer 11 is: 0.5 - 1 mm.

[0106] Figure 6 The shown embodiment realizes reducing the absorption loss of the display structure 10 to the radiator 32 by the way that the touch layer 12 is recessed inward compared to the display layer 11. In this embodiment, the touch layer 12 and the display layer 11 are two independent layer structures, and there may be a spacer layer structure 13 between the touch layer 12 and the display layer 11. For example, the distance between the touch layer 12 and the display layer 11 is at least 0.3 mm, that is, the thickness of the spacer layer structure 13 is at least 0.3 mm.

[0107] Figure 6In the embodiment shown, the radiator 32 may be the frame 62 of the housing 60 of the terminal device 1000 or a part 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 jointly enclose a receiving space 601. The display structure 10 and the circuit board 40 are located in 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 adhered to the cover plate 70 with an optical adhesive. In one embodiment, an optical film, such as a filter, a polarizer, etc., may also be provided between the first surface S1 and the cover plate 70.

[0108] Figure 7A Schematic diagram of a terminal device provided by an embodiment of the present application. Figure 7A The embodiment shown is Figure 6 Based on the embodiment shown, a partial shielding structure 20 is added to the periphery of the side surface S3 of the display structure 10 to better reduce the absorption loss of the display structure 10 to the radiator 32. Refer to Figure 7A , the shielding structure 20 includes a first part 21 and a second part 22. The display structure 10 includes a first surface S1 and a second surface S2 which are oppositely arranged, and a side surface S3 connected between the first surface S1 and the second surface S2. The first surface S1 faces the cover plate 70, and the first surface S1 may be attached to the inner surface of the cover plate 70. The first part 21 is connected to the second surface S2 of the display structure 10 and covers at least part of the second surface S2. The second part 22 is located on the periphery of the side surface S3 of the display structure 10 and is spaced and disposed opposite to the side surface S3. In a specific embodiment, the edge of the first part 21 is located outside the edge of the display structure 10, and the projection of the display structure 10 on the first part 21 is located inside the first part 21. Openings or hollow areas may be provided on the first part 21 to avoid other components in the terminal device. The second part 22 is bent and extended from the edge of the first part 21 and shields at least part of the side surface S3 of the display structure 10.

[0109] Refer to Figure 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 control layer 12, and the portion connected between the side surface 11S of the display layer 11 and the side surface 12S of the touch control layer 12. In one embodiment, the second portion 22 faces the side surface 11S of the display layer 11 of the display structure 10. One end of the second portion 22 away from the first portion 21 may be flush with the surface of the display layer 11 away from the first portion 21. The vertical distance between one end of the second portion 22 away from the first portion 21 and the first portion 21 may be greater than the thickness of the display layer 11, that is, in the 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 inside the second portion 22. In this solution, the touch control layer 12 may be attached to the inner surface of the cover plate 70 of the terminal device 1000, or the touch control layer 12 may be integrated on the inner surface of the cover plate 70. In order to ensure that there is a gap between the second portion 22 and the inner surface of the cover plate 70 and prevent the second portion 22 from scraping the ink layer 72 on the inner surface of the cover plate 70. In this solution, the periphery of the side surface 12S of the touch control layer 12 is the ink layer 72, and the second portion 22 does not extend to the periphery of the side surface 12S of the touch control layer 12. The design of attaching or integrating the touch control layer 12 with the inner surface of the cover plate 70 is beneficial to the realization of the thin and light design of the terminal device 1000 in this solution.

[0110] In this solution, the second portion 22 may also block the side surface 11S of the display layer 11 at the periphery of the side surface S3 of the display structure 10. Combined with the edge of the touch control layer 12 being retracted compared to the edge of the display layer 11, the signal coupling between the display structure 10 and the radiator 32 is reduced, and the absorption loss of the display structure 10 to the radiator 32 is reduced.

[0111] Figure 7B It is a partial enlarged schematic diagram of the terminal device provided by an embodiment of the present application. Refer to Figure 7B , in one embodiment, the touch control layer 12 and the cover plate 70 are arranged at intervals. The second portion 22 may also face the side surface 11S of the display layer 11 and the side surface 12S of the touch control layer 12 at the same time, and 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 solution, the vertical distance between the surface of the touch control layer 12 away from the display layer 11 and the first portion 21 is equal to the height by which the top end of the second portion 22 protrudes relative to the first portion 21. The top end of the second portion 22 is the end of the second portion 22 away from the first portion 21. In this embodiment, through the design that the second portion 22 of the shielding structure 20 is flush with the surface of the touch control layer 12 away from the display layer 11, the second portion 22 blocks the display layer 11 and the touch control layer 12. Combined with the design that the edge of the touch control layer 12 is retracted compared to the edge of the display layer 11, the signal coupling between the display structure 10 and the radiator 32 is reduced, and the absorption loss of the display structure 10 to the radiator 32 is reduced.

[0112] Figure 7C A partial enlarged schematic diagram of a terminal device provided by an embodiment of the present application. Refer to Figure 7C , Figure 7C The embodiment shown is based on the embodiment shown in Figure 7B On the basis of the embodiment shown, the distance between the touch layer 12 and the cover plate 70 is increased. In the direction perpendicular to the first part 21 of the shielding structure 20, the height of one end of the second part 22 away from the first part 21 exceeds the surface of the touch layer 12 away from the display layer 11. From Figure 7C The dotted line drawn from the edge of the touch layer 12 in shows that the top surface of the touch layer 12 corresponds to the inside of the second part 22, and the part of the second part 22 above the dotted line is the part where the second part 22 exceeds the touch layer 12. One end of the second part 22 away from the first part 21 still maintains a gap with the ink layer 72 on the inner surface of the cover plate 70. In this solution, the vertical distance between the surface of the touch layer 12 away from the display layer 11 and the first part 21 is less than the height by which the top end of the second part 22 protrudes relative to the first part 21, and the top end of the second part 22 is the end of the second part 22 away from the first part 21. The height of the part where the second part 22 exceeds the surface of the touch layer 12 can improve the effect of reducing the signal coupling between the display structure 10 and the radiator 32 and reducing the absorption loss of the display structure 10 to the radiator 32.

[0113] Figure 7B And Figure 7C In the embodiment shown, the edge of the touch layer 12 may not be retracted, that is, the edge of the touch layer 12 and the edge of the display layer 11 may also be flush.

[0114] Figure 8 A schematic diagram of the specific structural design between the display structure and the shielding structure in a terminal device provided by an embodiment of the present application. Refer to Figure 8, the shielding structure 20 is a shielding cover structure with flanges. The shielding structure 20 is independent of the display structure 10, and there is a gap G1 between the second part 22 of the shielding structure 20 and the side surface S3 of the display structure 10. In this embodiment, the terminal device further includes a near-field communication antenna 91. The near-field communication antenna 91 is attached to the second surface S2 of the display structure 10, and the first part 21 of the shielding structure 20 is attached to the second surface S2, such that the near-field communication antenna 91 is clamped between the first part 21 and the second surface S2. The terminal device further includes an FPC (or conductive flexible cable) 92 connected to the display structure 10. The FPC (or conductive flexible cable) 92 is led out from the edge position of the first part 21, that is, the opening position formed by the second part 22, and the FPC (or conductive flexible cable) 92 is stacked on the surface of the first part 21 facing away from the display structure 10. The FPC (or conductive flexible cable) has a connector 93, and this connector 93 is used for electrically connecting to other control chips or system-on-chip or connectors on the main board in the terminal device. Specifically, the connector 93 can be a BTB connector. In this solution, the display structure 10 and the cover plate 70 (protective layer, such as glass, sapphire, etc.) of the terminal device are attached by an optical adhesive. The edge of the cover plate 70 extends beyond the edge of the display structure, and there is a gap between the second part 22 and the ink layer on the inner surface of the cover plate 70.

[0115] Figure 9A It is a schematic diagram of the specific structural design between the display structure and the shielding structure in the terminal device provided by an embodiment of the present application. Refer to Figure 9A , the shielding structure 20 is sprayed on the second surface S2 and the side surface S3 of the display structure 10 by spraying a metal material. In this embodiment, the second part 22 of the shielding structure 20 is attached to the side surface S3 of the display structure 10. Specifically, the metal material sprayed on the side surface S3 constitutes the second part 22 of the shielding structure 20. In this solution, the display structure 10 and the cover plate 70 (protective layer, such as glass, sapphire, etc.) of the terminal device are attached by an optical adhesive. The edge of the cover plate 70 extends beyond the edge of the display structure 10, and the top of the second part 22 is connected to the inner surface of the cover plate 70. In this solution, the display structure 10 is enclosed by the shielding structure 20 and the cover plate 70 together, such that the display structure 10 can be enclosed in a closed manner, which is more conducive to reducing the absorption loss brought by the display structure 10 to the antenna radiator. In other embodiments, the second part 22 can also cover a part of the area of the side surface S3, and a gap can also be formed between the second part 22 and the inner surface of the cover plate 70.

[0116] Figure 9AIn the embodiment shown, the terminal device further includes a Near Field Communication (NFC) antenna 91, and the Near Field Communication (NFC) antenna 91 is attached to the second surface S2 of the display structure 10. The terminal device further includes an FPC (or a conductive flexible cable) 92 connected to the display structure 10. The FPC (or the conductive flexible 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 clamped between the second surface S2 and the FPC (or the conductive flexible cable) 92. The first part 21 of the shielding structure 20 is sprayed on the outer surface of the FPC. A part of the FPC (or the conductive flexible cable) 92 extends to the outside of the edge of the display structure 10, and a connector 93 is provided on the part of the FPC (or the conductive flexible cable) 92 extending to the outside.

[0117] Figure 9B It is a schematic diagram of the specific structural design between the display structure and the shielding structure in the terminal device provided by an embodiment of the present application. Figure 9B The embodiment shown and Figure 9A the difference between the embodiment shown is that, Figure 9B In the embodiment shown, a bending portion 22T is formed at the connection between the second part 22 of the shielding structure 20 and the cover plate 70. The bending portion 22T covers the inner surface of the cover plate. The bending portion 22T forms an annular structure around the periphery of the display structure 10. The width of the bending portion 22T in the radial direction can be controlled within 0.2 mm to ensure good clearance for the antenna.

[0118] Figure 10 It is a schematic diagram of the terminal device provided by an embodiment of the present application. Refer to Figure 10 , the terminal device 1000 includes a display structure 10 and an antenna 30. The antenna 30 includes a feeding circuit 31 and a radiator 32. The radiator 32 of the antenna 30 is located on the frame 62 of the housing 60 of the terminal device 1000. The display structure 10 includes a relatively arranged first surface S1 and a second surface S2 and a side surface S3 connected between the first surface S1 and the second surface S2. At least a part 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 position 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 feeding circuit 31 is located on the circuit board 40.

[0119] 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 that are oppositely disposed. 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 disposed around at least a part of the periphery of the main structure 10A. The main structure 10A and the edge structure 10B are integrally formed on the substrate 14 by a circuit board manufacturing process. The main structure 10A includes a display layer 11 and a touch layer 12 that are stacked in a direction perpendicular to the top surface 141. The edge structure 10B includes a shielding wall 23, and in a direction perpendicular to the side surface S3, the shielding wall 23 covers at least a part of the main structure 10A.

[0120] The radiator 32 of the antenna 30 is located outside 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 achieve isolation of at least part of the signals between the radiator 32 and the main structure 10A, and 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. Figure 10 In the shown embodiment, a part of the main structure 10A of the display structure 10 includes conductive lines formed of a conductive material. Without the isolation of the shielding wall 23, the main structure 10A is likely to absorb the signal of the antenna 30, and signal coupling is likely to occur between the conductive material of the main structure 10A and the radiator 32, resulting in signal loss of the main structure 10A to the radiator 32 of the antenna 30. In this solution, by forming a shielding wall 23 structure in the display structure 10, the shielding wall 23 includes a conductive material, and the shielding wall 23 can reduce the signal coupling between the radiator 32 and the main structure 10A and reduce the absorption loss of the display structure 10 to the radiator 32.

[0121] In one embodiment, the shielding wall 23 is made of a conductive material on the surface of the substrate 14 by manufacturing processes such as spraying and printing, and a shielding wall 23 formed of a conductor material is formed around the main structure 10A. The conductor material of the shielding wall 23 can be silver paste or the like. 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.

[0122] Refer to Figure 10, a radio frequency chip and a feeding circuit 31 can be arranged on a circuit board 40 inside the terminal device, and the radiator 32 is fed through the feeding circuit 31. The display structure 10 further includes a shielding layer 24, and the shielding layer 24 is located on one side of the bottom surface 142 of the substrate 14, and the shielding layer 24 covers at least part of the main body structure 10A. The shielding layer 24 is electrically connected to the shielding wall 23 through a via hole on the substrate 14. The shielding layer 24 is arranged at intervals between the circuit board 40 and the display structure 10, and the shielding layer 24 can reduce the loss caused by the signal absorption of the radio frequency circuit on the circuit board 40 by the display structure 10.

[0123] Figure 11 For Figure 10 a partial enlarged schematic diagram of the display structure provided by an embodiment in the shown terminal device. Figure 11 The features surrounded by the dashed box in represent the main body structure 10A and the edge structure 10B. Refer to Figure 11 , the main body structure 10A includes a TFT (thin film transistor) circuit B1, a TFE (thin film encapsulation) evaporation coating layer B2, and a TOE (touch on encapsulation) layer B3 that are stacked on the substrate 14. The edge structure 10B is located on the periphery of the main body structure 10A.

[0124] The display structure 10 includes a first surface S1 and a second surface S2 that are oppositely arranged and a side surface S3 connected between the two. The edge structure 10B includes three insulating walls. Along the direction perpendicular to the side surface S3 of the display structure 10, that is, the first direction A1, these three insulating walls are respectively an inner wall W1, a middle wall W2, and an outer wall W3. A first spaced-apart space R1 is formed between the inner wall W1 and the middle wall W2, and a second spaced-apart space R2 is formed between the middle wall W2 and the outer wall W3. The first spaced-apart space R1 is used to accommodate the conductive material that overflows during the manufacturing process of the main body structure 10A, and prevent the overflowing conductive material from entering the second spaced-apart space R2. The second spaced-apart space R2 is used to fill the conductive material, and a shielding wall 23 is formed by filling the conductive material in the second spaced-apart space R2. The shielding wall 23 is used to reduce the coupling of signals between the radiator and the main body structure 10A, and reduce the absorption loss of the display structure 10 to the radiator. The bottom of the shielding wall 23 is electrically connected to the shielding layer 24 on the bottom surface of the substrate 14 through a via hole (conductive via hole) on the substrate 14.

[0125] Specifically, the region where the first spaced-apart space R1 is located constitutes an isolation portion of the edge structure 10B. The isolation portion is located between the shielding wall 23 and the main body structure 10A. The accommodation space within the isolation portion (i.e., the first spaced-apart space R1) is used to accommodate the conductive material that flows from the main body structure 10A into the isolation portion during the fabrication of the main body structure 10A. In a specific embodiment, during the fabrication of the main body structure 10A, the conductive material can be printed on the substrate 14 through fabrication processes such as spraying and printing. Since the conductive material is in a liquid state and has fluidity during the fabrication process, in this solution, an isolation portion is provided in the region between the shielding wall 23 and the edge of the main body structure 10A. The isolation portion is similar to a dam structure and can prevent the conductive material from flowing to the position of the shielding wall 23.

[0126] Figure 12 For Figure 10 a schematic plan view of a display structure provided by an embodiment within the terminal device shown. Refer to Figure 12 , the shielding wall 23 forms a surrounding structure with an opening 231. Refer to Figure 11 and Figure 12 , the display structure 10 includes edge traces 17. The edge traces 17 are stacked on a side of the edge structure 10B away from the substrate 14. The edge traces 17 are electrically connected to the main body structure 10A. The edge traces 17 pass through the opening 231 and extend to the periphery of the edge structure 10B.

[0127] Figure 13 A schematic diagram of a terminal device provided by an embodiment of the present application. Refer to Figure 13 , the terminal device 1000 provided by the present application can be a wearable device such as a watch or a smart bracelet. The terminal device 1000 has a cover plate 70 of a display screen and a frame 62. The frame 62 is used to arrange a radiator of an antenna of the terminal device 1000.

[0128] Figure 14 For Figure 13 a sectional view of the terminal device shown, Figure 15 For Figure 14 an enlarged schematic view of part I in Figure 14 and Figure 15, the housing 60 of the terminal device includes a frame 62 and a rear cover 61. The frame 62 and the rear cover 61 are independent parts, and the two are assembled and connected, for example, they can be connected and fixed by means of glue. The frame 62 and the rear cover 61 can also be of an integrally formed structure. The top of the frame 62 is connected to a cover plate 70. The edge of the cover plate 70 is fixedly connected to the frame 62, and a decorative ring 80 is provided around the connection between the cover plate 70 and the frame 62. The decorative ring 80 covers the connection between the cover plate 70 and the frame 62. A display structure 10 is provided inside the cover plate 70. The top surface of the display structure 10 is the first surface S1, and the bottom surface is the second surface S2. The first surface S1 faces the inner surface of the cover plate 70, and the second surface S2 is connected to the first part 21 of the shielding structure 20. The second part 22 of the shielding structure 20 is bent upward from the edge of the first part 21 and covers the periphery of the side surface S3 of the display structure 10. The second part 22 is between the display structure 10 and the frame 62. The frame 62 is the radiator 32 of the antenna. The second part 22 can isolate at least part of the signal coupling between the radiator 32 and the display structure 10, and reduce the absorption loss of the display structure 10 to the radiator 32.

[0129] Figure 16 is Figure 13 a three-dimensional schematic diagram of the shielding structure in the terminal device shown. Figure 17 is Figure 16 the enlarged schematic diagram of part II in. Refer to Figure 16 , the first part 21 of the shielding structure 20 has a hollow area 212, and this hollow area 212 is used to avoid larger-sized devices in the terminal device, for example, an ambient light sensor (ALS), a near-field communication antenna (NFC).

[0130] Refer to Figure 16 and Figure 17 , the second part 22 and the first part 21 are of an integrally formed structure, and the second part 22 is a folded edge formed by bending the edge of the first part 21. The second part 22 forms a structure that does not completely surround the edge of the first part 21. The second part 22 surrounds the edge of the first part 21 and forms an opening 222. As Figure 16 shown, the second part 22 forms two openings 222 around the edge of the first part 21. For example, one of the two openings 222 is used to avoid the flexible circuit board of the display screen, and the flexible circuit board is electrically connected to the system-on-chip on the main board in the terminal device. The other of the two openings 222 is used to avoid other structural components in the terminal device.

[0131] Figure 18 is a schematic diagram of the terminal device provided by an embodiment of the present application. Refer to Figure 18, the terminal device 1000 provided by this application can be a mobile phone. The terminal device 1000 has a cover plate 70 of the display screen and a frame 62. The frame 62 is used to set the radiator of the antenna of the terminal device 1000.

[0132] Figure 19 is Figure 18 the sectional view of the terminal device shown, Figure 20 is Figure 19 the enlarged schematic view of part III in Figure 19 and Figure 20 , the housing 60 of the terminal device includes a frame 62 and a rear cover 61. The frame 62 and the rear cover 61 can be independent parts and assembled into one body, or can be an integrally formed structure. The outer layer of the display screen of the terminal device 1000 is a protective layer (i.e., the cover plate 70), and has a display structure 10 inside. 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. Refer to Figure 20 , the bottom surface of the display structure 10 is connected to the first part 21 of the shielding structure 20. The second part 22 of the shielding structure 20 bends upward from the edge of the first part 21 and shields the periphery of the side of the display structure 10. The second part 22 is between the display structure 10 and the frame 62. The frame 62 is the radiator 32 of the antenna. The second part 22 can isolate at least part of the signal coupling between the radiator 32 and the display structure 10 and reduce the absorption loss of the display structure 10 to the radiator 32.

[0133] Figure 21 is Figure 18 the three-dimensional schematic view of the shielding structure in the terminal device shown. Figure 22 is Figure 21 the enlarged schematic view of part IV in Figure 21 , in this embodiment, the first part 21 of the shielding structure 20 has a hollowed-out area 212, and this hollowed-out area 212 is used to avoid larger-sized devices in the terminal device, such as an ambient light sensor (ALS) and a near-field communication antenna (NFC).

[0134] Refer to Figure 21 and Figure 22 , the second part 22 and the first part 21 are an integrally formed structure. The second part 22 is a hem formed by bending at the edge of the first part 21. The second part 22 forms a structure that does not completely surround the edge of the first part 21. The second part 22 surrounds the edge of the first part 21 and forms an opening 222, as Figure 21As shown, the second part 22 surrounds the edge of the first part 21 to form an opening 222. For example, one of the two openings 222 is used to avoid the flexible circuit board of the display screen, and the system-on-chip on the main board in the terminal device is electrically connected through the flexible circuit board. The other of the two openings 222 is used to avoid other structural components in the terminal device.

[0135] This application conducts simulation tests on a terminal device provided in an implementation manner, and the terminal device is a watch. Figure 23A It is a schematic structural diagram of five different test schemes. Figure 23B Based on Figure 23A It is a simulation curve graph of the absorption loss of the radiator generated by the five schemes shown.

[0136] Refer to Figure 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, there is no ITO material; Scheme 2 is to add a display layer (OLED) and a touch layer (TP) on the basis of Scheme 1, that is, add two ITO layers, and the areas of these two layers are equal; Scheme 3 is to shrink the edge of the touch layer inward on the basis of Scheme 2. Among them, the size of the display layer remains unchanged, and the edge of the touch layer shrinks inward by 0.5 mm compared with the edge of the display layer; Scheme 4 is to add a partial shielding structure at the bottom side of the display layer on the basis of Scheme 3. The material of the shielding structure is a conductor material, and the area of the shielding structure at the bottom side of the display layer is larger than the area of the display layer; Scheme 5 is to add a shielding structure on the side of the display structure on the basis of Scheme 4. In Scheme 5, the shielding structure includes a first part and a second part. The first part is located on one side of the bottom of the display layer, and the second part surrounds the periphery of the side of the display structure. The height by which the second part protrudes relative to the first part exceeds the touch layer, that is, the vertical distance between the top surface of the touch layer and the first part is less than the vertical distance between the top end of the second part and the first part.

[0137] Figure 23B In, the curve marked with the number 1 in the triangle represents the total absorption loss generated by Scheme 1, the curve marked with the number 2 in the triangle represents the total absorption loss generated by Scheme 2, the curve marked with the number 3 in the triangle represents the total absorption loss generated by Scheme 3, the curve marked with the number 4 in the triangle represents the total absorption loss generated by Scheme 4, and the curve marked with the number 5 in the triangle represents the total absorption loss generated by Scheme 5. Refer to Figure 23B, since Solution 1 does not have a display structure, the absorption loss generated is the smallest. Since Solution 2 adds a display structure, and both the display layer and the touch layer of the display structure can generate absorption loss, and Solution 2 does not have a shielding structure or a solution to reduce absorption loss, the absorption loss generated by Solution 2 is the largest. Solution 3 can reduce part of the absorption loss by shrinking the touch layer inward compared to the edge of the display layer, but Solution 3 does not have a shielding structure, and the absorption loss generated by Solution 3 ranks second, smaller than the absorption loss of Solution 2 but greater than the absorption loss generated by other solutions. Solution 4 sets a shielding structure on the bottom side of the display layer, but the area of the shielding structure is larger than the area of the display layer. Combining with the inward shrinking of the edge of the touch layer, the absorption loss generated by Solution 4 is smaller than the absorption loss generated by Solution 3, and the absorption loss generated by Solution 4 ranks third. Solution 5 adds a shielding structure on the side periphery of the display structure on the basis of Solution 4. The absorption loss generated by Solution 5 is even smaller than the absorption loss generated by Solution 4. The absorption loss generated by Solution 5 ranks fourth, only greater than the absorption loss generated by Solution 1.

[0138] Figure 24 is a curve comparison diagram of the absorption losses generated by materials with different structures based on Figure 23A Solution 4 shown. Figure 24 In Figure 23A , the curve marked with the number 1 inside the triangle represents Figure 23A the total absorption loss generated by all the metal structures in Solution 4 shown, the curve marked with the number 2 inside the triangle represents Figure 23A the absorption loss generated by the shielding structure (material is copper) in Solution 4 shown, the curve marked with the number 3 inside the triangle represents Figure 23A the absorption loss generated by the display structure (including the display layer and the touch layer, material is ITO) in Solution 4 shown, the curve marked with the number 4 inside the triangle represents Figure 23A the absorption loss generated by the metal structure on the circuit board in Solution 4 shown, the curve marked with the number 5 inside the triangle represents Figure 23A the absorption loss generated by the metal frame (stainless steel material) in Solution 4 shown. It can be seen from Figure 24 that among all the structures of the terminal device, the absorption loss generated by the display structure is the largest.

[0139] Figure 25 is a curve comparison diagram of the absorption losses generated by materials with different structures based on Figure 23A Solution 5 shown. Figure 25 In Figure 23A , the curve marked with the number 1 inside the triangle represents Figure 23AThe absorption loss generated by the shielding structure (made of copper) in the fifth solution shown is represented by the curve with the number 3 inside the triangle. Figure 23A The absorption loss generated by the display structure (including a display layer and a touch layer, made of ITO) in the fifth solution shown is represented by the curve with the number 4 inside the triangle. Figure 23A The absorption loss generated by the metal structure on the circuit board in the fifth solution shown is represented by the curve with the number 5 inside the triangle. Figure 23A The absorption loss generated by the metal frame (made of stainless steel) in the fifth solution shown. From Figure 25 it can be seen that 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.

[0140] Figure 26 is Figure 23A the schematic diagram of the antenna current and electric field distribution in the second solution in Figure 27 is Figure 23A the schematic diagram of the antenna current and electric field distribution in the fifth solution in Figure 26 and Figure 27 By comparison, it can be seen that in the second solution, due to the lack of design of the shielding structure for the display structure and the inward contraction design of the touch layer, the current and electric field are relatively divergent, and there is more current distribution at the in-screen position of the display structure, which proves that the display structure couples the antenna current and generates absorption loss to the antenna. While Figure 27 in the current distribution diagram of the fifth solution shown, it can be seen that in the fifth solution, due to the shielding structure and the inward contraction design of the touch layer, the current and electric field are relatively concentrated, and the current and electric field are concentrated at the position of the frame, and there is less current distribution at the in-screen of the display structure. Therefore, it can be proved that the fifth solution can reduce the absorption loss of the display structure.

[0141] Figure 28 This is the comparison between the S11 curve of the antenna system in the solution with a shielding structure in the specific implementation manner of the present application and the S11 curve of the antenna system of the terminal device without a shielding structure. Figure 28 In

[0142] Figure 29Comparison of the radiation efficiency curves of the antenna system in the solution with a shielding structure and the antenna system of a terminal device without a shielding structure in the specific implementation manner of this application. Figure 29 In the figure, curve 1 represents the radiation efficiency of the antenna of the embodiment with a shielding structure provided around the display structure, and curve 2 represents the radiation efficiency of the antenna of the embodiment without a shielding structure provided around the display structure. It can be seen that the radiation efficiency of the antenna of the embodiment with a shielding structure provided around the display structure is better, and the antenna radiation efficiency is increased by 1.5 dB. Therefore, by providing a shielding structure on the second surface and the side surface of the display structure in this application, the problem of absorption loss of the display structure to the antenna can be effectively solved, which is beneficial to improving the radiation efficiency of the antenna.

[0143] Figure 30 Comparison of the S11 curve graphs of the antenna system in the solution with the edge of the touch layer retracted in the specific implementation manner of this application and the S11 curve graphs of the antenna system in the solution without designing the retraction of the touch layer in the display structure. Figure 30 In the figure, curve 1 represents the return loss of the antenna system in the solution with the edge of the touch layer retracted in the specific implementation manner of the display structure. Specifically, the edge of the touch layer is retracted by 0.5 mm. Curve 2 represents the return loss of the antenna of the embodiment without designing the retraction of the touch layer in the display structure. It can be seen that the technical means of retracting the edge of the touch layer has little influence on the S11 curve of the antenna. The solution with the edge of the touch layer retracted in the specific implementation manner of the display structure can obtain a lower return loss of the antenna. Therefore, through the solution of retracting the edge of the touch layer in this application, the problem of absorption loss of the display structure to the antenna can be effectively solved, which is beneficial to improving the performance of the antenna.

[0144] Figure 31 Comparison of the radiation efficiency curves of the antenna system in the solution with the edge of the touch layer retracted and the radiation efficiency curves of the antenna system in the solution without designing the retraction of the touch layer in the specific implementation manner of this application. Figure 31 In the figure, curve 1 represents the radiation efficiency of the antenna of the embodiment with the edge of the touch layer retracted. Specifically, the edge of the touch layer is retracted by 0.5 mm, and the antenna radiation efficiency is increased by 0.7 dB. Curve 2 represents the radiation efficiency of the antenna of the embodiment without designing the retraction of the touch layer. It can be seen that the radiation efficiency of the antenna in the solution of the display structure with the edge of the touch layer retracted is better. Therefore, through the retraction of the edge of the touch layer in this application, the problem of absorption loss of the display structure to the antenna can be effectively solved, which is beneficial to improving the radiation efficiency of the antenna.

[0145] Figure 32 Comparison of the S11 curve graphs of the antenna system in the solution with a shielding structure and with the edge of the touch layer retracted and the S11 curve graphs of the antenna system in the solution without a shielding structure and without designing the retraction of the touch layer in the display structure in the specific implementation manner of this application.Figure 32 Among them, curve 1 represents the return loss of the antenna system in the solution of setting a shielding structure and inwardly shrinking the edge of the touch layer in the display structure implementation method. Specifically, the edge of the touch layer is inwardly shrunk by 0.5 mm. Curve 2 represents the return loss of the antenna in the embodiment where the display structure does not have a shielding structure and does not design the inward shrinkage of the touch layer. It can be seen that the technical means of setting a shielding structure and inwardly shrinking the edge of the touch layer has little influence on the S11 curve of the antenna. The solution of setting a shielding structure and inwardly shrinking the edge of the touch layer in the display structure implementation method can obtain a lower return loss of the antenna. Therefore, the solution of setting a shielding structure and designing the inward shrinkage of the edge of the touch layer in this application can effectively solve the problem of absorption loss of the display structure to the antenna, which is beneficial to improving the performance of the antenna.

[0146] Figure 33 This is a comparison of the radiation efficiency of the antenna system in the solution with a shielding structure and inward shrinkage of the edge of the touch layer in the specific implementation manner of this application and the radiation efficiency of the antenna system in the solution without a shielding structure and without designing the inward shrinkage of the touch layer. Figure 33 Among them, curve 1 represents the radiation efficiency of the antenna in the embodiment of the solution of setting a shielding structure around the display structure and inwardly shrinking the edge of the touch layer. Specifically, the edge of the touch layer is inwardly shrunk by 0.5 mm, and the antenna radiation efficiency is increased by 1.6 dB. Curve 2 represents the radiation efficiency of the antenna in the embodiment where the shielding structure is not set around the display structure and the inward shrinkage of the touch layer is not designed. It can be seen that the radiation efficiency of the antenna in the embodiment of setting a shielding structure around the display structure and inwardly shrinking the edge of the touch layer is better. Therefore, by setting a shielding structure on the second side and the side of the display structure and inwardly shrinking the edge of the touch layer in this application, the problem of absorption loss of the display structure to the antenna can be effectively solved, which is beneficial to improving the radiation efficiency of the antenna.

[0147] It should be understood that in various embodiments of this application, the magnitudes of the serial numbers of the above processes do not mean the order of execution. The order of execution of each process should be determined by its function and internal logic, and should not constitute any limitation to the implementation process of the embodiments of this application.

[0148] The above description is only the specific implementation manner of this application, but the protection scope of this application is not limited thereto. Any person skilled in the art within the technical scope disclosed by this application can easily think of changes or substitutions, which should all be covered by the protection scope of this application; without conflict, the possible implementation manners and the features in the possible implementation manners of this application can be combined with each other. Therefore, the protection scope of this application should be subject to the protection scope of the claims.

Claims

1. A terminal device, characterized in that, comprising: a display structure including a first surface, a second surface and a side surface, the first surface and the second surface being oppositely arranged, at least part of the first surface constituting a display surface of a screen of the terminal device, and the orientation of the side surface being different from that of the first surface; a shielding structure including a conductive material, the shielding structure including a first part and a second part, the first part being located on a side of the second surface away from the first surface, the first part covering at least part of the second surface, and the second part being located at the periphery of the side surface and being disposed opposite to at least part of the side surface; and an antenna including a radiator, the radiator being located at the periphery of the side surface; the second part is located between the radiator and the side surface to achieve isolation of at least part of the signals between the radiator and the display structure, and 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.

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 plate-like structure with a hem.

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 perpendicular distance between the first surface and the second surface is a first dimension, and the height by which the top end of the second part protrudes relative to the first part is a second dimension, the first direction being a direction perpendicular to the second surface, the first dimension being less than or equal to the second dimension, and the top end of the second part being the 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 being at least part of the side frame, the cover plate being laminated outside the first surface of the display structure and connected to the side frame, and an ink layer being provided on an inner surface of the cover plate, the ink layer being correspondingly provided at an edge of the first surface and the periphery of the edge, and there being a gap between the top end of the second part and the ink layer.

5. The terminal device according to any one of claims 1-4, characterized in that, 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.

6. The terminal device according to any one of claims 1-5, characterized in that, the display structure includes a display layer and a touch layer, the touch layer and the display layer being laminated, the display layer being located between the touch layer and the first part, and the perpendicular distance between a surface of the touch layer away from the display layer and the first part being less than or equal to the height by which the top end of the second part protrudes relative to the first part, the top end of the second part being 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 part, in a direction perpendicular to the side surface, the edge of the touch layer is recessed compared with the edge of the display layer, and the distance between the edge of the touch layer and the second part is greater than the distance between the side surface and the second part.

8. The terminal device according to claim 6, wherein, the size range of the edge of the touch layer being recessed compared with the edge of the display layer is: 0.5 mm - 1 mm.

9. The terminal device according to claim 7 or 8, wherein, 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 by which the top end of the second part protrudes relative to the first part, and the top end 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 - 9, wherein, 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 - 10, wherein, the second part is connected to the edge of the first part, the second part forms a surrounding structure with an opening, the surrounding structure surrounds the first part, and the opening is used to avoid components inside the terminal device.

12. A terminal device, wherein, comprises: a display structure including 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 part of the first surface constitutes the display surface of the screen of the terminal device, the display structure includes a display layer and a touch layer arranged in a stacked manner, and the edge of the touch layer is recessed compared with the edge of the display layer; and an antenna including a radiator, the radiator is located outside the periphery of the side surface and is spaced from the display structure, 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.

13. The terminal device according to claim 12, wherein, the size range of the edge of the touch layer being recessed compared with the edge of the display layer is: 0.5 mm - 1 mm.

14. The terminal device according to claim 12 or 13, wherein, the terminal device further includes a shielding structure, the shielding structure includes a conductive material, and part of the shielding structure is located between the side surface and the radiator for achieving at least partial signal isolation between the radiator and the display structure.

15. The terminal device according to claim 14, wherein, the shielding structure includes a first part and a second part, the first part is connected to the second surface and covers at least part of the second surface, and the second part is located outside 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.

16. The terminal device according to claim 15, wherein, the vertical distance between the surface of the touch layer away from the display layer and the first part is less than the height by which the top end of the second part protrudes relative to the first part, and the top end of the second part is the end of the second part away from the first part.

17. A terminal device, wherein, it includes: a display structure including a first surface and a second surface disposed opposite to each other, and a side surface connected between the first surface and the second surface. At least part of the first surface constitutes the display surface of the screen of the terminal device. The display structure includes a substrate, a main structure, and an edge structure. The substrate includes a top surface and a bottom surface disposed 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 at least partially surrounds the periphery of the main structure. The edge structure includes a shielding wall. In a direction perpendicular to the side surface, the shielding wall covers at least part of the main structure; and an antenna including a radiator, the radiator being located outside the side surface and 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, wherein, the edge structure includes an isolation part, the isolation part is located between the shielding wall and the main structure, and the isolation part specifically has a receiving space for receiving the conductive material flowing from the main structure into the isolation part during the manufacturing process of the main structure.

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

20. The terminal device according to claim 19, wherein, 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 17-20, wherein, the shielding wall forms a surrounding structure with an opening. The display structure includes edge traces, the edge traces are stacked on the side of the edge structure away from the substrate, the edge traces are electrically connected to the main structure, and the edge traces pass through the opening and extend to the periphery of the edge structure.

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