Electronic device
By creating grooves in the metal shielding layer to increase the clearance area and ground the display screen, the problems of poor antenna radiation performance and electrostatic intrusion are solved, thereby improving the radiation performance and operational stability of electronic devices.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- VIVO MOBILE COMM CO LTD
- Filing Date
- 2023-05-24
- Publication Date
- 2026-07-31
AI Technical Summary
The antennas in electronic devices have poor radiation performance, and static electricity entering the display screen can cause malfunctions.
A groove is made in the metal shielding layer so that it faces the clearance area to increase the clearance area of the radiator, and the display screen is protected by grounding through the first area.
It enhances the antenna's radiation performance, reduces screen flicker, and improves the usability of electronic devices.
Smart Images
Figure CN116544649B_ABST
Abstract
Description
Technical Field
[0001] This application belongs to the field of electronic technology, specifically relating to an electronic device. Background Technology
[0002] With the continuous development of electronic technology, electronic devices are equipped with more and more functions. Currently, electronic devices typically have antenna radiators, but the gap between the antenna radiator and the display screen is small, resulting in a small clearance area for the radiator and consequently, poor antenna radiation performance. Summary of the Invention
[0003] This application aims to provide an electronic device that solves the problem of poor antenna radiation performance.
[0004] To solve the above-mentioned technical problems, this application is implemented as follows:
[0005] This application provides an electronic device, including: a frame and a display screen. The frame includes a radiator, and the display screen includes a display screen body and a metal shielding layer. The metal shielding layer is disposed opposite to the back of the display screen body. There is a clearance area between the radiator, the metal shielding layer, and the display screen body. The metal shielding layer has at least two grooves facing the clearance area. The metal shielding layer also includes a first area, which is an area without the grooves.
[0006] In the embodiments of this application, since at least two grooves are formed on the metal shielding layer and the grooves face the clearance area, the clearance area of the radiator is effectively increased, thereby enhancing the radiation performance of the antenna corresponding to the radiator. Simultaneously, when static electricity is incident, the static electricity can be grounded through the first area, thus protecting the display screen body, reducing the occurrence of screen flicker and malfunctions, and improving the performance of the electronic device.
[0007] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description
[0008] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:
[0009] Figure 1 This is a schematic diagram of the structure of an electronic device provided for an embodiment of this application;
[0010] Figure 2 yes Figure 1 Schematic diagram of section AA;
[0011] Figure 3 This is for Figure 1 A schematic diagram of the current distribution of the electronic device shown.
[0012] Figure 4 yes Figure 3 Enlarged structural diagram of region B in the middle;
[0013] Figure 5 This is a schematic diagram of the structure of another electronic device provided in the embodiments of this application;
[0014] Figure 6 This is for Figure 5 A schematic diagram of the current distribution of the electronic device shown.
[0015] Figure 7 yes Figure 6 Enlarged structural diagram of region C in the middle;
[0016] Figure 8 This is a schematic diagram of the structure of a metal shielding layer in an electronic device provided in this application embodiment. Detailed Implementation
[0017] The embodiments of this application will now be described in detail. Examples of these embodiments are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this application, and should not be construed as limiting this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.
[0018] The terms "first" and "second" in the specification and claims of this application may explicitly or implicitly include one or more of the features. In the description of this application, unless otherwise stated, "multiple" means two or more. Furthermore, "and / or" in the specification and claims indicates at least one of the connected objects, and the character " / " generally indicates that the preceding and following objects are in an "or" relationship.
[0019] Because the space for the radiator of an electronic device's antenna is usually quite limited, once the size of the radiator is determined, improving its radiation performance can be achieved by increasing the clearance area of the radiator. The most direct way to increase this clearance area is to retract the metal shielding layer of the display screen away from the radiator, effectively increasing the distance between the shielding layer and the radiator. However, retracting the shielding layer exposes the wiring on the display screen itself. When static electricity strikes between the radiator and the display screen, it can directly enter the display screen, causing screen flickering and malfunctions.
[0020] To address the aforementioned problems, the embodiments of this application propose the following solutions.
[0021] See Figure 1 and Figure 2 , Figure 1 This is a schematic diagram of the structure of an electronic device provided in an embodiment of this application. Figure 2 yes Figure 1 A structural schematic diagram of section AA is shown below. Figure 1 and 2 As shown, the electronic device includes a frame 10 and a display screen 30. The frame 10 includes a radiator 11, and the display screen 30 includes a display screen body 31 and a metal shielding layer 32. The metal shielding layer 32 is disposed opposite to the back of the display screen body 31. There is a clearance area 20 between the radiator 11, the metal shielding layer 32, and the display screen body 31. At least two grooves 22 are formed on the metal shielding layer 32, and the grooves 22 face the clearance area. The metal shielding layer 32 also includes a first area 21, which is the area where the grooves 22 are not formed.
[0022] It should be noted that the metal shielding layer 32 can be attached to the display screen body 31, or the metal shielding layer 32 can be spaced apart from the display screen body 31. There is no specific limitation. The metal shielding layer 32 can be used to provide electrostatic protection for the display screen body 31 and can also shield signal interference.
[0023] The working principle of the embodiments of this application can be found in the following description:
[0024] Because the metal shielding layer 32 has at least two grooves 22 facing the clearance area, meaning the grooves 22 can communicate with the clearance area 20, the clearance area of the radiator 11 is effectively increased, thereby enhancing the radiation performance of the antenna corresponding to the radiator 11. Simultaneously, when static electricity is incident, it can be grounded through the first area 21, thus protecting the display screen body 31, reducing screen flicker and malfunctions, and improving the performance of the electronic device.
[0025] It should be noted that the first region 21 can be understood as the region between two adjacent grooves 22, see [reference]. Figure 4 That is, a protrusion 23 can be provided in the first region 21, and the protrusion 23 is located between two adjacent grooves 22.
[0026] It should be noted that the operating frequency band of the radiator 11 is not limited here. Optionally, the radiator 11 can be the radiator 11 corresponding to the Near Field Communication (NFC) module. That is to say, the radiator 11 is an NFC radiator, which means that the radiator 11 can work in the operating frequency band corresponding to NFC. The radiator 11 and the NFC module can form an NFC antenna, thereby enabling the electronic device to have NFC function.
[0027] The frame 10 can be made of metal, and therefore can also be called a mid-frame or a metal mid-frame. The material of the metal shielding layer 32 is not limited here; optionally, the metal shielding layer 32 can be a copper shielding layer.
[0028] Alternatively, the frame 10 can also be made of metal and insulating materials. That is, the radiator 11 can be made of metal, while the area of the frame 10 other than the radiator 11 can be made of insulating materials, such as plastic.
[0029] It should be noted that the radiator 11 can be located at the top, side, or bottom of the frame 10, and the specific location is not limited. The top of the frame 10 may refer to the location of the receiver of the electronic device, while the bottom of the frame 10 may refer to the location of the speaker of the electronic device. The side of the frame 10 refers to the location that is connected to the top and bottom of the frame 10, respectively.
[0030] The back of the display body 31 can be understood as the surface of the display body 31 facing the back cover of the electronic device, while the front of the display body 31, which is opposite to the back, can be understood as the surface facing the external environment, and the front is the display surface.
[0031] The metal shielding layer 32 may also include other areas; optionally, see [reference needed]. Figure 8 The metal shielding layer 32 may also include a second region 24, which is integrally formed with the first region 21. The second region 24 can be grounded, so that the first region 21 can be grounded through the second region 24. When static electricity hits the first region 21, the static electricity can be grounded through the second region 24, which enhances the protection effect on the display screen body 31.
[0032] It should be noted that the distribution of at least two grooves 22 on the metal shielding layer 32 is not limited here.
[0033] As an optional implementation, the at least two grooves 22 are arranged at equal intervals.
[0034] The fact that at least two grooves 22 are equally spaced can be understood as: the distance between any two adjacent grooves 22 in at least two grooves 22 is equal.
[0035] In this embodiment, at least two grooves 22 are equally spaced, that is, at least two grooves 22 can be evenly distributed in the metal shielding layer 32, so that the clearance area at each position of the metal shielding layer 32 is large, thereby making the radiation performance at each position of the metal shielding layer 32 better.
[0036] Meanwhile, when a protrusion 23 is provided between any two adjacent grooves 22 in at least two grooves 22, the protrusion 23 can also be evenly distributed, so that the conductivity of the metal shielding layer 32 for static electricity is good at each position.
[0037] As another optional implementation, at least some of the at least two grooves 22 are not equally spaced, that is, the distance between some of the at least two grooves 22 is small, while the distance between the remaining grooves 22 is large. In this way, the diversity and flexibility of the arrangement of the at least two grooves 22 in the first region 21 can be increased.
[0038] It should be noted that the protrusion 23 between any two adjacent grooves 22 in at least two grooves 22 can be a separate component, or it can be formed by two adjacent grooves 22 and other areas of the first region 21.
[0039] As an optional implementation method, see [link to implementation details]. Figure 4Any two adjacent grooves 22 are connected by a protrusion 23. The first sidewall 221 of one groove 22, the second sidewall 222 of the other groove 22, and the first region 21 between the first sidewall 221 and the second sidewall 222 enclose a protrusion 23. The first sidewall 221 and the second sidewall 222 are arranged adjacent to each other.
[0040] The first sidewall 221 belongs to one of any two adjacent grooves 22, and the second sidewall 222 belongs to the other of any two adjacent grooves 22, and the first sidewall 221 and the second sidewall 222 are arranged adjacent to each other.
[0041] In this embodiment, static electricity can be better grounded through the protrusion 23 and the second region 24, thereby further enhancing the protection effect on the display screen body 31.
[0042] Optionally, the shape of each of the at least two grooves 22 may be the same as or different from the shape of the other grooves 22.
[0043] It should be noted that the specific shape of the protrusion 23 is not limited here.
[0044] As an optional implementation, the protrusion 23 can be a rectangular protrusion, a trapezoidal protrusion, a circular protrusion, an elliptical protrusion, or a triangular protrusion. That is, the protrusion 23 between any two adjacent grooves 22 in the at least two grooves 22 can be a rectangular protrusion, a trapezoidal protrusion, a circular protrusion, an elliptical protrusion, or a triangular protrusion.
[0045] In this embodiment, the protrusion 23 can be a rectangular protrusion, a trapezoidal protrusion, a circular protrusion, an elliptical protrusion, or a triangular protrusion, thus increasing the diversity and flexibility of the arrangement of the protrusion 23.
[0046] As an optional implementation method, see [link to implementation details]. Figure 1 and Figure 3 The protrusion 23 is a rectangular protrusion, the dimension of the protrusion 23 in the width direction is w, the number of protrusions 23 is at least two, the distance between any two adjacent protrusions 23 in the at least two protrusions 23 is s, and the ratio of s to w is less than 2, the width direction is the direction of the line connecting any two adjacent protrusions 23 in the at least two protrusions 23.
[0047] It should be noted that only one protrusion 23 can be provided between any two adjacent grooves 22, and since at least two grooves 22 are provided on the first region 21, at least two protrusions 23 can also be provided on the first region 21.
[0048] In this embodiment, the protrusion 23 has a width dimension of w, and the distance between any two adjacent protrusions 23 is s, and the ratio of s to w is less than 2. This can further improve the effect of static electricity passing through the protrusion 23 to the ground, that is, further enhance the electrostatic protection of the display screen body 31.
[0049] Optionally, see Figure 3 When the radiator 11 is in operation, the current on the radiator 11 is I1, and the current in the first region 21 of the metal shielding layer 32 is I2. The first region 21 of the metal shielding layer 32 has at least two grooves 22, and any two adjacent grooves 22 can be understood as enclosing a protrusion 23. The dimension of the protrusion 23 in the width direction is w, that is, the width of the protrusion 23 can be w. The distance between any two adjacent protrusions 23 is s, the distance between the radiator 11 and the protrusion 23 is d1, and the depth of the groove 22 is d2. Thus, the net area of the radiator 11 is equivalent to d1 + d2, that is, the net area of the radiator 11 is the sum of d1 and d2, thereby increasing the net area of the radiator 11 and enhancing the radiation performance of the radiator 11.
[0050] Additionally, see Figure 4 , Figure 4 for Figure 3 Enlarged view of the structure of region B in the middle, as shown below. Figure 4 As shown, the current in the protrusion 23 can be divided into the following four parts: i1, i... 01 i 02 I2, where i 01 and i 02 The directions are opposite, and i 01 and i 02 The current difference is small, therefore i can be considered as 01 and i 02 The opposite forces cancel each other out, so the current through the protrusion 23 is I. 2+ i1, while the current i1 is relatively small, and I2 is much larger than i1, so the current through the protrusion 23 can be considered to be I2.
[0051] As an optional implementation, the sum of the dimensions of the at least two protrusions 23 in the width direction is greater than the dimension of the radiator 11 in the width direction.
[0052] Among them, see Figure 3 and Figure 6 The sum of the dimensions of at least two protrusions 23 in the width direction can be understood as Figure 3 and Figure 6 The length shown in L2, while the dimension of the radiator 11 in the width direction can be understood as... Figure 3 and Figure 6 The length shown in L1.
[0053] In this embodiment, since the sum of the dimensions of at least two protrusions 23 in the width direction is greater than the dimension of the radiator 11 in the width direction, the clearance area at any position of the radiator 11 can be large, thereby ensuring that the radiation performance of the antenna radiator 11 at each position is good.
[0054] As an optional implementation method, see [link to implementation details]. Figure 5 and Figure 6 , Figure 5 This is a schematic diagram of the structure of an electronic device provided in an embodiment of this application. Figure 6 for Figure 5 The diagram shows the current distribution of the electronic device. The protrusion 23 is a trapezoidal protrusion. (See attached diagram.) Figure 7 , Figure 7 It can be understood as Figure 6 An enlarged view of the structure of region C shows that the trapezoidal protrusion includes a first side 231 and a second side 232 arranged opposite to each other. The first side 231 is arranged towards the radiator 11, and the second side 232 is arranged away from the radiator 11. The length of the first side 231 is greater than the length of the second side 232.
[0055] The second side 232 can be understood as the edge of the connection between the protrusion 23 and the second region 24, that is, the protrusion 23 and the second region 24 are connected by the second side 232.
[0056] In this embodiment, the protrusion 23 is a trapezoidal protrusion, and the length of the first side 231 is greater than the length of the second side 232. This allows the area of the display screen body 31 covered by the metal shielding layer 32 to be larger, thus reducing the exposed area of the display screen body 31 and further enhancing the electrostatic protection effect of the display screen body 31. At the same time, the length of the first side 231 is greater than the length of the second side 232, which is equivalent to shortening the length of the second side 232. This reduces the impedance of the second side 232, so that when the radiator 11 is in working state, the current mainly flows along the second side 232, enhancing the radiation performance.
[0057] Optionally, see Figure 7The first side 231 can be understood as the outer side of the protrusion 23 (i.e., the first region 21 between two adjacent grooves 22), and the second side 232 can be understood as the inner side of the protrusion 23. That is, the outer side of the protrusion 23 is wider and the inner side is narrower. The current on the protrusion 23 is I1 + i1, which means the current on the protrusion 23 can be understood as the sum of the currents at the first side 231 and the second side 232. Since i1 is relatively small and I2 is much larger than i1, the current on the protrusion 23 can be considered to be I2. Furthermore, according to... Figure 6 As shown, the current on radiator 11 is I1.
[0058] As an optional implementation method, see [link to implementation details]. Figure 1 , Figure 3 , Figure 5 and Figure 6 The electronic device also includes a printed circuit board 40, a metal shielding layer 32 located between the display screen body 31 and the printed circuit board 40, and the metal shielding layer 32 is attached to the display screen body 31. The metal shielding layer 32 is spaced apart from the printed circuit board 40, and the printed circuit board 40 is electrically connected to the radiator 11.
[0059] The printed circuit board 40 is equipped with a feed source, and the feed source can be electrically connected to the radiator 11.
[0060] It should be noted that the feeding connection method between the feed source and the radiator 11 is not limited here. Optionally, the feed source and the radiator 11 can be coupled for feeding, or the feed source and the radiator 11 can be fed through a feeding structure.
[0061] In this embodiment, the printed circuit board 40 is electrically connected to the radiator 11, which enhances the power supply stability of the radiator 11 and thus enhances the power supply effect of the radiator 11.
[0062] It should be noted that the specific type of the feed source is not limited here. Optionally, the feed source can be an NFC module, that is, the radiator 11 can operate in the corresponding frequency band of NFC.
[0063] As an optional implementation method, see [link to implementation details]. Figure 1 and Figure 2 The printed circuit board 40 is electrically connected to the first end of the radiator 11, and the second end 110 of the radiator 11 is grounded.
[0064] The grounding of the second end 110 of the radiator 11 can also be referred to as the grounding of the second end 110 of the radiator 11. Optionally, the electronic device may also include a ground plane, and the second end 110 of the radiator 11 is electrically connected to the ground plane, thereby realizing the grounding of the second end 110 of the radiator 11.
[0065] In this embodiment, the printed circuit board 40 is electrically connected to the first end of the radiator 11, and the second end of the radiator 11 is grounded. This enhances the power supply stability of the radiator 11, thereby improving the power supply effect of the radiator 11.
[0066] As an optional implementation method, see [link to implementation details]. Figure 1 , Figure 3 , Figure 5 and Figure 6 The frame 10 further includes a first frame portion 12 and a second frame portion 13. The radiator 11 is located between the first frame portion 12 and the second frame portion 13. The first frame portion 12 is spaced apart from the first end of the radiator 11, and the second frame portion 13 is spaced apart from the second end of the radiator 11.
[0067] In this embodiment, since the first frame portion 12 is spaced apart from the first end of the radiator 11, and the second frame portion 13 is spaced apart from the second end of the radiator 11, the interference of the first frame portion 12 and the second frame portion 13 on the performance of the radiator 11 can be reduced, thereby further enhancing the radiation performance of the radiator 11.
[0068] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.
[0069] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.
Claims
1. An electronic device, characterized in that, include: The frame includes a radiator, and the display screen includes a display body and a metal shielding layer. The metal shielding layer is disposed opposite to the back of the display body. There is a clearance area between the radiator, the metal shielding layer, and the display body. At least two grooves are formed on the metal shielding layer, and the grooves face the clearance area. The metal shielding layer also includes a first area, which is an area without the grooves. The electronic device also includes a printed circuit board, the metal shielding layer is located between the display screen body and the printed circuit board, and the metal shielding layer is attached to the display screen body. The metal shielding layer and the printed circuit board are spaced apart, and the printed circuit board is electrically connected to the radiator.
2. The electronic device according to claim 1, characterized in that, The at least two grooves are arranged at equal intervals.
3. The electronic device according to claim 1, characterized in that, The protrusion between any two adjacent grooves in the at least two grooves is a rectangular protrusion, a trapezoidal protrusion, a circular protrusion, an elliptical protrusion, or a triangular protrusion.
4. The electronic device according to claim 3, characterized in that, The protrusion is a trapezoidal protrusion, which includes a first side and a second side arranged opposite to each other. The first side is arranged towards the radiator, and the second side is arranged away from the radiator. The length of the first side is greater than the length of the second side.
5. The electronic device according to claim 3, characterized in that, The protrusion is a rectangular protrusion with a width dimension of w. The number of protrusions is at least two. The distance between any two adjacent protrusions is s, and the ratio of s to w is less than 2. The width direction is the direction of the line connecting any two adjacent protrusions.
6. The electronic device according to claim 5, characterized in that, The sum of the dimensions of the at least two protrusions in the width direction is greater than the dimension of the radiator in the width direction.
7. The electronic device according to any one of claims 1 to 6, characterized in that, The radiator is the radiator corresponding to the Near Field Communication (NFC) module.
8. The electronic device according to claim 1, characterized in that, The printed circuit board is electrically connected to the first end of the radiator, and the second end of the radiator is grounded.
9. The electronic device according to claim 8, characterized in that, The frame also includes a first frame portion and a second frame portion, and the radiator is located between the first frame portion and the second frame portion. The first frame portion is spaced apart from the first end of the radiator, and the second frame portion is spaced apart from the second end of the radiator.