CN111029724B

CN111029724B - Mobile terminal

Info

Publication number: CN111029724B
Application number: CN201911349306.7A
Authority: CN
Inventors: 李偲
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2019-12-24
Filing date: 2019-12-24
Publication date: 2021-03-05
Anticipated expiration: 2039-12-24
Also published as: CN111029724A

Abstract

An embodiment of the present application provides a mobile terminal, including: the antenna comprises a light-transmitting cover plate, an antenna and a display screen arranged between the light-transmitting cover plate and the antenna; the antenna is arranged on one side of the light-transmitting cover plate; the display screen comprises a display layer and a frequency selection cathode integrated layer arranged on one side of the display layer, which is far away from the antenna; the frequency selective cathode integrated layer comprises a frequency selective structural area and a cathode area, the frequency selective structural area faces the antenna, and the cathode area is arranged on the peripheral side of the frequency selective structural area. The mobile terminal of the embodiment of the application can reduce the adverse effect of the display screen on the communication performance of the antenna, and further can improve the communication performance of the antenna.

Description

Mobile terminal

Technical Field

The invention relates to the field of electronic equipment, in particular to a mobile terminal.

Background

The antenna of the mobile terminal is generally disposed at the top and/or bottom of the mobile terminal, and a signal of the antenna is transmitted through a slot formed in a housing of the mobile terminal. Although some mobile terminals in the related art have the antenna disposed under the display screen and the signal transceiving path of the antenna passes through the display screen, the presence of the display screen may adversely affect the communication performance of the antenna.

Disclosure of Invention

In view of the above, an embodiment of the present invention provides a mobile terminal to improve communication performance of an antenna disposed under a display screen.

In order to achieve the above purpose, the technical solution of the embodiment of the present application is implemented as follows:

an embodiment of the present application provides a mobile terminal, including:

a light-transmitting cover plate;

the antenna is arranged on one side of the light-transmitting cover plate;

the display screen is arranged between the light-transmitting cover plate and the antenna and comprises a display layer and a frequency selection cathode integrated layer arranged on one side, far away from the antenna, of the display layer; the frequency selective cathode integrated layer comprises a frequency selective structural area and a cathode area, the frequency selective structural area faces the antenna, and the cathode area is arranged on the peripheral side of the frequency selective structural area.

Further, the display layer has a first pixel array and a second pixel array, the number of pixels per unit area of the first pixel array is smaller than the number of pixels per unit area of the second pixel array;

the first pixel array faces the antenna, and the second pixel array is located on a peripheral side of the first pixel array.

Further, the number of pixels per unit area of the first pixel array is less than or equal to 1/2 of the number of pixels per unit area of the second pixel array.

Furthermore, the frequency selection structure area is provided with metal circuit patterns which are periodically arranged, and the arrangement positions of the metal circuit patterns are kept away from the pixel points in the first pixel array.

Further, the metal circuit pattern is one of a cross shape, a herringbone shape, a rectangular shape, and a ring shape.

Furthermore, the mobile terminal also comprises a touch screen, and the touch screen is arranged between the display screen and the light-transmitting cover plate;

a through groove is formed in the touch screen and faces the antenna.

Further, the projection of the through groove on the horizontal plane covers the projection of the antenna on the horizontal plane.

Furthermore, the material of the frequency selective cathode integrated layer is nano metal.

Further, the antenna is a millimeter wave antenna.

Further, the millimeter wave antenna comprises a microstrip antenna and a dipole antenna.

The embodiment of the application provides a mobile terminal, through keeping away from the one side of printing opacity apron with the antenna setting at the display screen to one side of keeping away from the antenna at the display layer of display screen sets up the integrative layer of frequency selective cathode, will frequently select the zone of structure to face the antenna frequently in the integrative layer of frequency selective cathode, so that the electromagnetic wave of antenna radiation can be followed and frequently selected the zone of structure and passed, therefore, can reduce the display screen to the harmful effects of the communication performance of antenna, and then can promote the communication performance of antenna.

Drawings

Fig. 1 is a schematic cross-sectional view of a partial structure of a mobile terminal according to an embodiment of the present disclosure;

fig. 2 is a schematic diagram of a metal circuit pattern according to an embodiment of the present disclosure;

FIG. 3 is a schematic diagram of a second metal circuit pattern provided in an embodiment of the present application;

fig. 4 is a schematic diagram of a third metal circuit pattern provided in the embodiment of the present application.

Reference numerals: a light-transmitting cover plate 10; an antenna 20; a display screen 30; a display layer 31; the first pixel array 31 a; the second pixel array 31 b; a selective cathode-integrated layer 32; a frequency selective structure region 32 a; a cathode region 32 b; a touch screen 40; through grooves 40 a.

Detailed Description

It should be noted that, in the present application, technical features in examples and embodiments may be combined with each other without conflict, and the detailed description in the specific embodiment should be understood as an explanation of the gist of the present application and should not be construed as an improper limitation to the present application.

In the description of the present application, a "horizontal" orientation or positional relationship is based on the orientation or positional relationship shown in fig. 1, it being understood that these orientation terms are merely for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the present application.

An embodiment of the present application provides a mobile terminal, please refer to fig. 1, where the mobile terminal includes: a light-transmissive cover plate 10, an antenna 20 and a display screen 30. The antenna 20 is disposed on one side of the light-transmissive cover 10, and the display screen 30 is disposed between the light-transmissive cover 10 and the antenna 20. The display screen 30 comprises a display layer 31 and an integrated layer 32 of frequency selective cathode arranged on the side of the display layer 31 remote from the antenna 20. The frequency selective cathode integrated layer 32 includes a frequency selective structure region 32a and a cathode region 32b, the frequency selective structure region 32a faces the antenna 20, and the cathode region 32b is disposed on the peripheral side of the frequency selective structure region 32 a.

Specifically, the display 30 of the present embodiment may be a Low Temperature Poly-silicon (LTPS) liquid crystal display, or may be another type of display. The display interface of the display layer 31 faces the transparent cover 10, which is equivalent to that the side of the display interface is the front side of the display 30, and the antenna 20 is disposed at the rear side of the display 30, that is, the signal transceiving path of the antenna 20 needs to pass through the display 30 and the transparent cover 10. The selective cathode-integrated layer 32 is a film structure covering the display layer 31, and the material thereof may be a nano metal. The cathode region 32b on the Frequency Selective cathode integrated layer 32 is a cathode of the display layer 31, and the Frequency Selective Structure region 32a is a region having a Frequency Selective Structure (Frequency Selective Structure), which is a periodic Structure with a band-pass characteristic, and the periodic Structure usually presents a periodic metal circuit pattern, for example, as shown in fig. 2 to 4, the metal circuit pattern may be cross-shaped, herringbone, annular, rectangular or irregular, and the like, and the electromagnetic wave radiated from the antenna 20 can pass through the metal circuit pattern. Since the frequency selective cathode integrated layer 32 is provided with the frequency selective structural region 32a, the influence of the display screen 30 on the communication performance of the antenna 20 is reduced, and the communication performance of the antenna 20 can be further improved.

The antenna 20 of this embodiment is a Millimeter wave (Millimeter wave) antenna, and the Millimeter wave antenna may be a microstrip antenna, a dipole antenna, or other antenna capable of radiating electromagnetic waves with a wavelength in a range of 1mm to 1cm, and it is understood that the antenna 20 is not limited to the Millimeter wave antenna, and in other embodiments, other types of antennas may also be used.

Referring to fig. 1, the display layer 31 of the present embodiment has a first pixel array 31a and a second pixel array 31b, and the number of pixels per unit area of the first pixel array 31a is smaller than that of the second pixel array 31 b. The first pixel array 31a faces the antenna 20, and the second pixel array 31b is located on the peripheral side of the first pixel array 31 a. That is, compared to the second pixel array 31b, the pixel points in the first pixel array 31a are more sparse, and thus, the obstruction of the electromagnetic wave by the pixel points can be reduced. Preferably, the number of pixels per unit area of the first pixel array 31a is less than or equal to 1/2 of the number of pixels per unit area of the second pixel array 31 b.

Further, the metal circuit pattern of the present embodiment is disposed at a position avoiding the pixel points in the first pixel array 31 a. That is, there are no pixel points in the projection of the metal circuit pattern on the horizontal plane, so that when the electromagnetic wave passes through the metal circuit pattern, the pixel points in the first pixel array 31a can be prevented from blocking the metal circuit pattern, and the communication performance of the antenna 20 under the display screen 30 can be further improved. It is understood that in other embodiments, a part of the pixels in the projection of the metal circuit pattern in the horizontal plane may exist.

Referring to fig. 1, the mobile terminal of the present embodiment further includes a touch screen 40, and the touch screen 40 is disposed between the display screen 30 and the transparent cover plate 10. The touch screen 40 is formed with a through groove 40a, and the through groove 40a faces the antenna 20.

Specifically, the existence of the touch screen 40 may also have a certain adverse effect on the communication performance of the antenna 20, therefore, in the present embodiment, the through slot 40a is further formed on the touch screen 40, and the electromagnetic wave radiated by the antenna 20 passes through the through slot 40a, that is, the electromagnetic wave passes through the first pixel array 31a, the frequency selection structure region 32a, the through slot 40a and the transparent cover plate 10 in sequence along the path indicated by the arrow at a in fig. 1, and radiates outward, more specifically, the projection of the through slot 40a on the horizontal plane covers the projection of the antenna 20 on the horizontal plane, that is, the opening size of the through slot 40a can ensure that all the electromagnetic wave radiated by the antenna 20 can pass through the through slot 40a, thereby, the influence of the touch screen 40 on the antenna 20 can be avoided, and the communication performance of the antenna 20 under the display screen 30 can be further improved. It is understood that in other embodiments, the through-groove 40a may not be formed on the touch screen 40.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A mobile terminal, comprising:

a light-transmitting cover plate;

the antenna is arranged on one side of the light-transmitting cover plate;

the display screen is arranged between the light-transmitting cover plate and the antenna and comprises a display layer and a frequency selection cathode integrated layer, and the frequency selection cathode integrated layer is arranged on one side, far away from the antenna, of the display layer; the frequency selection cathode integrated layer comprises a frequency selection structural area and a cathode area, the frequency selection structural area faces the antenna, and the cathode area is arranged on the peripheral side of the frequency selection structural area; the frequency selective structure region is a region with a frequency selective structure, the frequency selective structure has a band-pass characteristic and is a metal circuit pattern which is periodically arranged, and electromagnetic waves radiated by the antenna can pass through the metal circuit pattern.

2. The mobile terminal of claim 1, wherein the display layer has a first pixel array and a second pixel array, the first pixel array having a smaller number of pixels per unit area than the second pixel array;

3. The mobile terminal of claim 2, wherein the number of pixels per unit area of the first pixel array is less than or equal to 1/2 of the number of pixels per unit area of the second pixel array.

4. The mobile terminal according to claim 2 or 3, wherein the metal circuit pattern is disposed at a position avoiding a pixel point in the first pixel array.

5. The mobile terminal of claim 4, wherein the metallic circuit pattern is one of cross-shaped, chevron-shaped, rectangular, and annular.

6. A mobile terminal according to any of claims 1-3, further comprising a touch screen disposed between the display screen and the light-transmissive cover;

a through groove is formed in the touch screen and faces the antenna.

7. The mobile terminal of claim 6, wherein a projection of the through slot on a horizontal plane covers a projection of the antenna on a horizontal plane.

8. The mobile terminal according to any of claims 1-3, wherein the material of the frequency selective cathode-integrated layer is a nano metal.

9. A mobile terminal according to any of claims 1-3, characterized in that the antenna is a millimeter wave antenna.

10. The mobile terminal of claim 9, wherein the millimeter-wave antenna comprises a microstrip antenna, a dipole antenna.