EP-4742438-A1 - TERMINAL DEVICE

Abstract

This application discloses a terminal device, including a display structure, a shielding structure, and an antenna. A second part of the shielding structure is disposed on a periphery of a side surface of the display structure, and the second part is used to isolate a signal between a radiator of the antenna and the side surface, thereby reducing an absorption loss of the display structure on the antenna. This application facilitates miniaturization and a high screen-to-body ratio of the terminal device, and can ensure performance of the antenna.

Inventors

• LIU, BING
• LI, KUN
• SUN, Qiao
• LI, Lingzhi
• GOU, XIAOGANG
• ZHAO, MENGLONG

Assignees

• Huawei Technologies Co., Ltd.

Dates

Publication Date

20260513

Application Date

20241125

Claims (20)

1. A terminal device, comprising: a display structure, comprising a first surface, a second surface, and a side surface, wherein the first surface and the second surface are disposed opposite to each other, at least a part of the first surface forms a display surface of a screen of the terminal device, and an orientation of the side surface differs from that of the first surface; a shielding structure, comprising a conductive material, wherein the shielding structure comprises a first part and a second part, the first part is located on a side that is of the second surface and that is away from the first surface, the first part covers at least a part of the second surface, and the second part is located on a periphery of the side surface and directly faces at least a part of the side surface; and an antenna, comprising a radiator, wherein the radiator is located on the periphery of the side surface; and the second part is located between the radiator and the side surface, to isolate at least a part of a signal between the radiator and the display structure, and in a direction perpendicular to the side surface, a distance between the radiator and the second part is greater than a distance between the second part and the side surface.
2. The terminal device according to claim 1, wherein the second part is interconnected with the first part, so that the shielding structure forms an integrated film structure or plate structure with a bent edge.
3. The terminal device according to claim 1 or 2, wherein the first part is attached to the second surface; and in a first direction, a vertical distance between the first surface and the second surface is a first size, a height by which a top of the second part protrudes relative to the first part is a second size, the first direction is a direction perpendicular to the second surface, the first size is less than or equal to the second size, and the top of the second part is an end that is of the second part and that is away from the first part.
4. The terminal device according to claim 3, wherein the terminal device comprises a cover and a side frame, the radiator is at least a part of the side frame, the cover is stacked outside the first surface of the display structure and is connected to the side frame, an ink layer is disposed on an inner surface of the cover, the ink layer is correspondingly disposed at an edge of the first surface and a periphery of the edge, and there is a gap between the top of the second part and the ink layer.
5. The terminal device according to any one of claims 1 to 4, wherein 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 to 5, wherein the display structure comprises 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, a vertical distance between a surface that is of the touch layer and that is away from the display layer and the first part is less than or equal to the height by which the top of the second part protrudes relative to the first part, and the top of the second part is the end that is of the second part and that is away from the first part.
7. The terminal device according to claims 1 to 5, wherein the display structure comprises a display layer and a touch layer, the touch layer and the display layer are stacked, and the display layer is located between the touch layer and the first part; and in the direction perpendicular to the side surface, an edge of the touch layer is inwardly retracted relative to an edge of the display layer, and a distance between the edge of the touch layer and the second part is greater than a distance between the side surface and the second part.
8. The terminal device according to claim 6, wherein a size of the edge that is of the touch layer and that is inwardly retracted relative to the edge of the display layer ranges from 0.5 mm to 1 mm.
9. The terminal device according to claim 7 or 8, wherein the vertical distance between the surface that is of the touch layer and that is away from the display layer and the first part is less than or equal to the height by which the top of the second part protrudes relative to the first part, and the top of the second part is the end that is of the second part and that is away from the first part.
10. The terminal device according to any one of claims 1 to 9, wherein the conductive material of the shielding structure is at least one of stainless steel, silver paste, copper, or conductive fabric, or a combination of at least two thereof.
11. The terminal device according to any one of claims 2 to 10, wherein the second part is connected to an 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 provide clearance for a component in the terminal device.
12. A terminal device, comprising: a display structure, comprising a first surface and a second surface that are disposed opposite to each other, and a side surface connected between the first surface and the second surface, wherein at least a part of the first surface forms a display surface of a screen of the terminal device, the display structure comprises a display layer and a touch layer that are stacked, and an edge of the touch layer is inwardly retracted relative to an edge of the display layer; and an antenna, comprising a radiator, wherein the radiator is located on a periphery of the side surface and is spaced from the display structure, and in a direction perpendicular to the side surface, a distance between the radiator and the edge of the touch layer is greater than a distance between the radiator and the edge of the display layer.
13. The terminal device according to claim 12, wherein a size of the edge that is of the touch layer and that is inwardly retracted relative to the edge of the display layer ranges from 0.5 mm to 1 mm.
14. The terminal device according to claim 12 or 13, wherein the terminal device further comprises a shielding structure, the shielding structure comprises a conductive material, and a part of the shielding structure is located between the side surface and the radiator, and is configured to isolate at least a part of a signal between the radiator and the display structure.
15. The terminal device according to claim 14, wherein the shielding structure comprises a first part and a second part, the first part is connected to the second surface and covers at least a part of the second surface, the second part is located on the periphery of the side surface, and 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 a vertical distance between a surface that is of the touch layer and that is away from the display layer and the first part is less than a height by which a top of the second part protrudes relative to the first part, and the top of the second part is an end that is of the second part and that is away from the first part.
17. A terminal device, comprising: a display structure, comprising a first surface and a second surface that are disposed opposite to each other, and a side surface connected between the first surface and the second surface, wherein at least a part of the first surface forms a display surface of a screen of the terminal device, the display structure comprises a substrate, a main structure, and an edge structure, the substrate comprises a top surface and a bottom surface that are disposed opposite to each other, the main structure and the edge structure are formed on the top surface of the substrate, the main structure comprises a display layer and a touch layer that are stacked in a direction perpendicular to the top surface, the edge structure is at least partially disposed around a periphery of the main structure, the edge structure comprises a shielding wall, and in a direction perpendicular to the side surface, the shielding wall covers at least a part of the main structure; and an antenna, comprising a radiator, wherein the radiator is located on a periphery of the side surface and is spaced from the display structure; and in the direction perpendicular to the side surface, the shielding wall is located between the radiator and the main structure, to isolate at least a part of a signal between the radiator and the main structure, and a distance between the radiator and the shielding wall is greater than a distance between the shielding wall and the main structure.
18. The terminal device according to claim 17, wherein the edge structure comprises an isolation part, the isolation part is located between the shielding wall and the main structure, the isolation part specifically has an accommodation space, and the accommodation space is configured to accommodate a conductive material that flows from the main structure to the isolation part in a process of manufacturing the main structure.
19. The terminal device according to claim 17 or 18, wherein the display structure further comprises a shielding layer, the shielding layer is located on a side of the bottom surface of the substrate, and the shielding layer covers at least a 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.

Description

This application claims priority to Chinese Patent Application No. 202311604085.X, filed with the China National Intellectual Property Administration on November 27, 2023 and entitled "TERMINAL DEVICE", which is incorporated herein by reference in its entirety. TECHNICAL FIELD The present invention relates to the field of radio frequency communication technologies, and in particular, to a terminal device. BACKGROUND Terminal devices are small and compactly stacked, continually pursuing miniaturization, slim profiles, and high screen-to-body ratios, to achieve superior aesthetics and texture. Right next to terminal antennas, there are almost components with poor conductivity and high loss, which are referred to as lossy components. For example, in watches and mobile phones, their screens are typical lossy components. The lossy component causes absorption of radiation efficiency of the antenna, leading to significant deterioration in performance of the antenna. A closer distance between the lossy component and a radiator of the antenna indicates smaller antenna clearance and greater deterioration in the performance of the antenna caused by the lossy component. In antenna design, the radiator is usually far away from the lossy component to reduce absorption. However, this method is increasingly constrained by the push for high screen-to-body ratios. Therefore, there is an urgent need for new antenna design technologies to resolve the antenna design challenges posed by miniaturization of terminal devices and their high screen-to-body ratios. SUMMARY This application provides a terminal device, to help implement miniaturization and a high screen-to-body ratio of the terminal device, reduce an absorption loss caused by a display module to an antenna in the terminal device, and ensure performance of the antenna. According to a first aspect, an embodiment of this 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 disposed opposite to each other, and an orientation of the side surface differs from that of the first surface. Specifically, the side surface faces a side frame of the terminal device, and the side surface may be connected between the first surface and the second surface. At least a part of the first surface forms a display surface of a 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 a side that is of the second surface and that is away from the first surface, the first part covers at least a part of the second surface, and the second part is located on a periphery of the side surface and directly faces at least a part of the side surface. 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 isolate at least a part of a signal between the radiator and the display structure. In a direction perpendicular to the side surface, a distance between the radiator and the second part is greater than a distance between the second part and the side surface. In this embodiment of this application, the shielding structure is disposed on a periphery of the display structure, the first part of the shielding structure covers the second surface, and the second part is disposed on the periphery of the side surface and directly faces the side surface, so that an absorption loss of the display structure on the terminal device can be reduced. Specifically, the second part of the shielding structure is disposed on the periphery of the side surface of the display structure and is located between the side surface and the radiator. Because the shielding structure includes the conductive material, the conductive material of the second part can isolate a signal between the side surface and the radiator of the antenna. This may be understood as follows: Existence of the second part can reduce coupling of a signal of the radiator of the antenna to the display structure, thereby resolving a problem of an absorption loss of the display structure on the antenna. If there is no second part, because the display structure has the conductive material, a signal of the radiator of the antenna is coupled to the display structure, the display structure is excited to generate a current, and the display structure absorbs a part of the signal of the radiator of the antenna, causing an absorption loss. In a possible implementation, the second part is interconnected with the first part, so that the shielding structure forms an integrated film structure or plate structure with a bent edge. In this solution, an interconnection relationship between the second part and the first part is limited, so tha