CN108023181B

CN108023181B - Electronic device capable of improving antenna performance

Info

Publication number: CN108023181B
Application number: CN201711499643.5A
Authority: CN
Inventors: 刘焕红; 唐海军; 吴青; 刘国林
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2017-12-29
Filing date: 2017-12-29
Publication date: 2020-03-17
Anticipated expiration: 2037-12-29
Also published as: CN108023181A

Abstract

The invention provides an electronic device capable of improving antenna performance, which comprises a display screen, a metal frame arranged around the side edge of the display screen and a combining piece arranged between the side edge of the display screen and the top end of the frame, wherein the height of the combining piece exceeds a preset height, so that at least the area with the preset height on the side edge of the display screen is not opposite to the metal frame. According to the invention, the height of the combining piece is set to exceed the preset height, so that the dead-against area of the side edge of the display screen and the metal frame is smaller than a preset value, and the interference between the display screen and the metal frame is avoided.

Description

Electronic device capable of improving antenna performance

Technical Field

The present invention relates to electronic devices, and particularly to an electronic device capable of improving antenna performance.

Background

At present, the screen occupation ratio of electronic devices such as mobile phones and tablet computers is higher and higher, so that the antenna clearance area is smaller and smaller. At present, the arrival of a full-screen makes the antenna clearance area very small, and because the display screen can cause certain influence on the antenna, how to reduce the influence of the display screen on the antenna is a very important consideration in the full-screen era.

Disclosure of Invention

The invention aims to provide an electronic device with antenna performance, which can effectively reduce the influence of a display screen on the antenna performance and improve the antenna performance.

The electronic device comprises a display screen, a metal frame arranged around the side edge of the display screen and a combining piece arranged between the side edge of the display screen and the top end of the frame, wherein the height of the combining piece exceeds a preset height, so that at least the area with the preset height on the side edge of the display screen is not opposite to the metal frame.

According to the electronic device provided by the invention, the height of the combining piece is set to exceed the preset height, so that the dead-against area of the side edge of the metal frame and the side edge of the display screen is smaller than a preset value, the interference between the display screen and the metal frame is avoided, and when the metal frame is used as an antenna radiator, the influence of the display screen on an antenna signal of the metal frame used as the antenna radiator can be obviously reduced.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic front view of an electronic device according to an embodiment of the invention.

Fig. 2 is a schematic diagram of an electronic device according to an embodiment of the invention, taken along the sectional line I-I in fig. 1.

Fig. 3 is a schematic side view of a display screen in an embodiment of the invention.

Fig. 4 is a schematic diagram of the electronic device in the embodiment of the invention, which is taken along a section line I-I in fig. 1, and illustrates the touch panel and the display panel.

Fig. 5 is a schematic top view of a metal frame according to an embodiment of the invention.

Fig. 6 is a schematic top view of a metal frame according to another embodiment of the invention.

Fig. 7 is a schematic diagram illustrating a positional relationship between the metal bezel and the display screen and the front bezel in an embodiment of the invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive effort based on the embodiments of the present invention, are within the scope of the present invention.

In the description of the embodiments of the present invention, it should be understood that the terms "thickness" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, which is only for convenience of describing the present invention and simplifying the description, and do not imply or indicate that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention, and that the first and second are merely for distinguishing one specific object from another and are not specific to a particular object.

Referring to fig. 1 and fig. 2 together, fig. 1 is a front view of an electronic device 100, illustrating a front structure of the electronic device 100. FIG. 2 is a schematic cross-sectional view taken along section line I-I of FIG. 1, illustrating a portion of the structure. The electronic device 100 includes a display screen 11, a metal bezel 12 disposed around a side S1 of the display screen 11, and a connector 13 disposed between the side S1 of the display screen 11 and a top D1 of the metal bezel 12. The height of the joint 13 exceeds a preset height, so that at least the area of the side edge S1 of the display screen 11 with the preset height is not opposite to the metal frame 12.

As shown in fig. 2, a surface of the top end D1 of the metal bezel 12 and a surface of the side S1 of the display screen 11 are perpendicular to each other to form a step T1, so that the joint 13 is disposed to fill the step T1 to ensure the consistency of the outer surface of the electronic device 100. By setting the height of the joint 13 to exceed a preset height, the area of the metal frame 12 facing the side edge S1 of the display screen 11 is smaller than a preset value, so as to avoid interference between the display screen 11 and the metal frame 12.

In some embodiments, the top 131 of the coupler 13 is substantially flush with the upper surface 111 of the display screen 11, and the bottom 132 of the coupler 13 abuts against the top end D1 of the metal bezel 12. Accordingly, the higher the height of the connector 13 is, the farther the top of the metal frame 12 is away from the upper surface 111 of the display screen 11, so that the smaller the overlapping height H1 of the side edge S1 of the display screen 11 and the metal frame 12 is, the smaller the facing area of the side edge S1 of the display screen 11 and the metal frame 12 is.

The upper surface 111 of the display screen 11 refers to a surface close to the front surface of the electronic device 100, and the top end D1 of the metal bezel 12 refers to an end of the metal bezel 12 close to the front surface of the electronic device 100.

In some embodiments, the metal bezel 12 functions as an antenna radiator for radiating or receiving antenna signals. The preset height is set according to the fact that the influence of the display screen 11 on the antenna performance of the metal frame 11 serving as the antenna radiator is smaller than a preset value when the opposite area of the display screen 11 and the metal frame 12 is met. That is, when the height of the joint 13 exceeds the preset height, the area of the display screen 11 directly facing the metal frame 12 satisfies that the influence of the display screen 11 on the performance of the metal frame 11 as an antenna radiator is less than the preset value.

Wherein, the preset value can be 1/10, 1/8 equivalent of the maximum power radiated by the antenna.

As shown in fig. 2, the electronic device 100 further includes a screen cover 14, where the screen cover 14 covers over the display screen 11 for protecting the display screen 11. The size of the screen cover 14 is larger than the size of the display screen 11 and extends beyond the display screen 11.

As shown in fig. 2, a partial region of the top portion 131 of the coupling member 13 is located below the screen cover 13, so that the coupling member 13 is embedded and fixed between the screen cover 13 and the metal bezel 12.

Wherein, the screen cover plate 13 is a glass cover plate.

Wherein, the connecting member 13 is made of insulating materials such as plastic, ceramic, etc.

As shown in fig. 2, the top 131 of the binder 13 includes a fitting portion B1 and a protrusion portion B2, the fitting portion B1 is a partial region of the top 131 of the binder 13 located below the screen cover 13, the fitting portion B1 is used for fitting with the screen cover 14, and the fitting portion B1 is flush with the upper surface 111 of the display screen 11. The protrusion part B2 extends from the outer side of the fitting part B1 and wraps the side edge of the screen cover 14 from the outer side of the screen cover 14. The height of the attaching portion B1 and the bottom 132 of the connector 13 exceeds a predetermined height, so that at least the predetermined height region of the side edge S1 of the display screen 11 is not directly opposite to the metal frame 12.

In some embodiments, the protrusion B2 extends to a position flush with the upper surface of the screen cover 14, and the outer surface W1 of the protrusion B2 is seamlessly engaged with the outer surface W2 of the metal bezel 12 and the upper surface 141 of the screen cover 14, so that the metal bezel 12 of the electronic device 100 and the screen cover 14 are integrated, and the seamless engagement between the metal bezel and the screen cover 13 is realized.

Fig. 2 only illustrates the structure of elements related to the present application, such as the structure of the rear cover, and is not illustrated or described since it is not so much related to the present application.

Please refer to fig. 3, which is a schematic side view of the display screen 11. The display screen 11 is a touch display screen, and includes a display panel 111 and a touch panel 112 covering the display panel 111.

The display panel 11 is used for displaying pictures, and the touch panel 112 is used for allowing a user to perform touch input for human-computer interaction.

Referring to fig. 4, which is a schematic view taken along I-I in fig. 1, a display screen 11 including a display panel 111 and a touch panel 112 is shown.

As shown in fig. 4, in some embodiments, the binder 13 may be a Touch Panel (TP) frame for tightly wrapping the side of the touch panel 112. In this embodiment, the bonding member 13 at least partially wraps the side of the display panel 111.

In general, the bonding member 13, which is a touch panel frame, wraps only the side of the touch panel 112, so that the metal bezel 12 faces the side of the entire display panel 111. In the present application, the bonding element 13 wraps at least a portion of the side edge of the display panel 111, so that the position of the metal bezel 12 is moved downward, and the facing area of the metal bezel 12 and the side edge S1 of the display screen 11 including the display panel 111 and the touch panel 112 is smaller, thereby effectively reducing the influence of the display screen 11 on the antenna performance of the metal bezel 12.

In some embodiments, the bonding member 13 wraps the side edge of the display panel 111 at a position corresponding to 1/3 of the entire thickness of the side edge of the display panel 111. Obviously, in other embodiments, the portion of the bonding member 13 wrapped around the side of the display panel 111 may also account for 2/5, etc. which is an appropriate proportion of the overall thickness of the side of the display panel 111.

Referring back to fig. 2 or fig. 4, the electronic device 100 further includes a front frame 15, where the front frame 15 is used for carrying the display screen 11.

A gap is formed between the metal frame 12 and the side edge S1 of the display screen 11. The distance between the front frame 15 and the metal frame 12 is smaller than the distance between the metal frame and the side edge S1 of the display screen 11.

As shown in fig. 2 or fig. 4, the front frame 15 may be disposed to abut against the metal frame 12. The display screen 11 set up in on the front bezel 15, just the side S1 of display screen 11 with the front bezel 15 is contradicted the limit of metal frame 12 has the distance of predetermineeing, thereby makes the side S1 and the metal frame 12 of display screen 11 have the distance of predetermineeing.

The front frame 15 may be made of non-conductive material such as plastic and plastic.

Fig. 5 is a schematic top view of the metal frame 12 according to an embodiment. In some embodiments, the metal bezel 12 is a closed frame disposed around four sides S1 of the display screen 11.

The metal frame 12 is provided with at least one slit tape 121, and the at least one slit tape 121 divides the metal frame 12 into at least one independent frame part 122.

As shown in fig. 3, the electronic device 100 further comprises at least one radio frequency circuit 2. The at least one independent frame part 122 serves as at least one independent antenna radiator and can be connected to the same or different radio frequency circuits 2, so as to implement the antenna transceiving function of the same frequency band or different frequency bands.

As shown in fig. 5, the number of the at least one slot 121 is two, the metal frame 12 is divided into two independent frame portions 122 serving as antenna radiators, the number of the radio frequency circuits 2 is two, the two radio frequency circuits 2 are used for generating antenna signals of different frequency bands, and the two radio frequency circuits 2 are respectively electrically connected to the two frame portions 122. Thus, each of the frame portions 122 serves as an antenna radiator of a different radio frequency circuit 2, and realizes transmission and reception of antenna signals of different frequency bands.

In some embodiments, the slit tape 121 is a micro slit tape, and as shown in fig. 3, the slit tape 121 includes at least two spaced micro slits F1, and a metal strip J1 is disposed between two adjacent micro slits F1. The length direction of the metal strip J1 (i.e. the extending direction of the metal strip J1) is parallel to the width direction of the metal frame 12 (i.e. the direction from the top end D1 to the bottom end D2 of the metal frame 12).

Wherein the width of the slit tape 121 is 1.5mm, 5.0mm or 1.5mm to 5.0 mm. The width of the micro-slit F1 is 0.05mm, 0.3mm or 0.05 mm-0.3 mm. The micro-gap F1 is filled with non-signal shielding material, such as insulating material like plastic. The width of the metal strip J1 is 0.1mm, 0.5mm or a value in the range of 0.1mm to 0.5 mm.

The two rf circuits 2 may be any two of a GSM (global system for mobile communications) antenna rf circuit, a CDMA (Code Division Multiple Access) antenna rf circuit, a bluetooth antenna rf circuit, a WIFI antenna rf circuit, and an NFC antenna rf circuit.

When each frame portion 122 of the metal frame 12 is used as an antenna radiator to be connected to the corresponding rf circuit 2, the four side edges S1 of the display screen 11 need to be spaced from the corresponding metal frame 12 by a predetermined distance.

Please refer to fig. 6, which is a schematic top view of a metal frame 12 according to another embodiment. In another embodiment, the at least one slit tape 121 is four, and the metal frame 12 is divided into four independent frame portions 122. The frame portions 122a and 122c are located on two opposite first sides, and the frame portions 122b and 122d are located on two opposite second sides. The electronic device 100 in the present application is square, and includes four mutually perpendicular sides, and the metal frame 12 is used as the frame of the electronic device 100 and also has four corresponding sides. As shown in fig. 6, the four slit tapes 121 may be opened at positions close to four corners of the metal frame 12.

In this embodiment, only the two frame portions 122a and 122c on the two opposite first sides are used as antenna radiators, the number of the radio frequency circuits 2 is two, the two radio frequency circuits 2 are used for generating antenna signals in different frequency bands, and the two radio frequency circuits 2 are electrically connected to the two frame portions 122 on the two opposite first sides, respectively. Thus, the two frame portions 122 on the two opposite first sides serve as antenna radiators of different rf circuits 2, and thus, transmit and receive of antenna signals of different frequency bands are achieved.

Fig. 7 is a schematic diagram illustrating a positional relationship between the metal frame 12 and the display screen 11 and the front frame 15.

When only two of the frame portions 122 on two opposite first sides of the metal frame 12 are used as antenna radiators of different rf circuits 2, the side S1 of the display screen 11 opposite to the two frame portions 122 used as antenna radiators has a first preset distance from the two frame portions 122 used as antenna radiators, and the side S1 of the display screen 11 opposite to the frame portions 122 not used as antenna radiators has a second preset distance from the frame portions 122 not used as antenna radiators. Wherein the second preset distance may be significantly smaller than the first preset distance. For example, the first predetermined distance is 5mm, and the second predetermined distance is 2 mm. Thus, the effect of a narrow frame can be achieved without affecting the frame portion of the metal frame 12, which serves as an antenna radiator. In some embodiments, the side S1 of the display screen 11 opposite to the frame portion 122 not acting as an antenna radiator may be disposed next to the frame portion 122 not acting as an antenna radiator, so as to achieve the effect of an ultra-narrow bezel.

The two opposite first sides are two opposite short sides, and the two opposite second sides are two opposite long sides.

The rf circuit 2 of the present application may include an rf transceiver circuit and a corresponding matching circuit.

Similarly, the slit tape 121 is a micro slit tape, the slit tape 121 includes at least two spaced micro slits F1, and a metal strip J1 is disposed between two adjacent micro slits F1. The length direction of the metal strip J1 (i.e. the extending direction of the metal strip J1) is parallel to the width direction of the metal frame 12 (i.e. the direction from the top end D1 to the bottom end D2 of the metal frame 12).

Similarly, the width of the slit tape 121 is 1.5mm, 5.0mm, or 1.5mm to 5.0 mm. The width of the micro-slit F1 is 0.05mm, 0.3mm or 0.05 mm-0.3 mm. The micro-gap F1 is filled with non-signal shielding material, such as insulating material like plastic. The width of the metal strip J1 is 0.1mm, 0.5mm or a value in the range of 0.1mm to 0.5 mm.

The electronic device 100 may be a mobile phone or a tablet computer.

According to the electronic device 100 provided by the invention, the metal frame 12 is used as the antenna radiator, so that the antenna performance is improved, meanwhile, the influence of the display screen 11 on the antenna performance of the metal frame 12 is reduced by reducing the dead-against area of the display screen 11 and the metal frame 12, and the good application of the metal frame 12 as the antenna radiator is realized.

The foregoing is illustrative of embodiments of the present invention, and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the principles of the embodiments of the present invention and are intended to be within the scope of the present invention.

Claims

1. An electronic device capable of improving antenna performance is characterized by comprising a display screen, a metal frame arranged around the side edge of the display screen and a combining piece arranged between the side edge of the display screen and the top end of the frame, wherein the height of the combining piece exceeds a preset height, so that at least an area with the preset height on the side edge of the display screen is not opposite to the metal frame;

the top of the combining piece is flush with the upper surface of the display screen, and the bottom of the combining piece is abutted against the top end of the metal frame;

the preset height is set according to the fact that the influence of the display screen on the antenna performance of the metal frame serving as the antenna radiator is smaller than a preset value when the area, right opposite to the metal frame, of the display screen is met, and the preset value is a percentage value of the maximum antenna radiation power and smaller than the maximum antenna radiation power.

2. The electronic device of claim 1, further comprising a screen cover plate covering the top of the display screen for protecting the display screen, wherein the size of the screen cover plate is larger than that of the display screen and extends beyond the display screen, a partial area of the top of the joint member is located below the screen cover plate, and the joint member is embedded and fixed between the screen cover plate and the metal frame.

3. The electronic device according to claim 2, wherein the top of the connector comprises a fitting portion and a protrusion portion, the fitting portion is configured to fit to the screen cover, the protrusion portion extends from an outer side of the fitting portion and wraps a side of the screen cover from the outer side of the screen cover, and a height of the fitting portion and a bottom of the connector exceeds the predetermined height.

4. The electronic device according to any one of claims 2-3, wherein the display screen comprises a display panel and a touch panel covering the display panel, and the bonding member wraps a side of the touch panel and at least partially wraps a side of the display panel.

5. The electronic device according to any one of claims 2-3, further comprising a front frame for carrying the display screen, wherein a gap is provided between the metal bezel and a side of the display screen, and a distance between the front frame and the metal bezel is smaller than a distance between the metal bezel and the side of the display screen.

6. The electronic device according to any of claims 2-3, wherein the metal bezel is a closed frame disposed around four sides of the display screen, and the metal bezel is provided with at least one slit band dividing the metal bezel into at least one independent housing portion functioning as at least one independent antenna radiator.

7. The electronic device of claim 6, wherein when each frame portion of the metal bezel is used as an antenna radiator, four sides of the display screen are spaced apart from the corresponding metal bezel by a first predetermined distance.

8. The electronic device of claim 6, wherein the at least one slot strip is four, and divides the metal bezel into four separate housing portions, wherein two housing portions on two opposing first sides are configured as antenna radiators and two housing portions on two opposing second sides are not configured as antenna radiators.

9. The electronic device according to claim 8, wherein a side of the display screen opposite to the two housing portions functioning as antenna radiators is a first predetermined distance from the two housing portions functioning as antenna radiators, and a side of the display screen opposite to the housing portions not functioning as antenna radiators is a second predetermined distance from the housing portions not functioning as antenna radiators, wherein the second predetermined distance is smaller than the first predetermined distance.

10. The electronic device of claim 9, wherein the two opposing first sides are two opposing short sides and the two opposing second sides are two opposing long sides.

11. The electronic device of claim 6, wherein the slot tape is a micro-slot tape, the slot tape comprises at least two micro-slots arranged at intervals, a metal strip is arranged between two adjacent micro-slots, and a length direction of the metal strip is parallel to a width direction of the metal frame.

12. An electronic device according to claim 11, wherein the width of the slit tape is 1.5mm, 5.0mm or a value in the range of 1.5mm to 5.0mm, the width of the micro-slits is 0.05mm, 0.3mm or a value in the range of 0.05mm to 0.3mm, and the width of the metal strip is 0.1mm, 0.5mm or a value in the range of 0.1mm to 0.5 mm.

13. The electronic device of claim 11, wherein each micro-slit is filled with a non-signal shielding material.