Display apparatus and electronic device
This application provides a display apparatus and an electronic device. A transparent dielectric layer is added to the display apparatus, metal is deposited on the transparent dielectric layer, to form a metal grid, and a part of the metal grid is used as a radiator of an antenna structure. After an antenna is integrated into the display apparatus, through optimization of an optical design, the metal grid may meet a requirement for optical transmittance, and display effect is not obviously affected. In addition, because the antenna structure is integrated into the display apparatus, coverage space of a wireless signal is increased. This avoids occurrence of a signal blind region, so that the electronic device has a more reliable connection in a millimeter-wave band, to meet a communication requirement.
1 . An electronic device, comprising a display apparatus, wherein the display apparatus, comprises a cover plate, a display panel, a metal grid, and a transparent dielectric layer, wherein
the transparent dielectric layer is disposed between the cover plate and the display panel;
the metal grid comprises a plurality of grid subunits, and is located on a surface of the transparent dielectric layer;
the metal grid comprises a first region and a second region, and a gap is formed between the first region and the second region; and
the first region comprises a first antenna element, the first antenna element comprises a radiation component and a feed component, one end of the feed component is electrically connected to the radiation component, and a width of the feed component is greater than or equal to a width of each of the plurality of grid subunits,
wherein the radiator component comprises a first radiator, a second radiator, a third radiator, and a fourth radiator distributed in a 2×2 array, and the first radiator and the third radiator are disposed opposite to each other; and
the feed component comprises a first feed line and a second feed line, one end of the first feed line is electrically connected to the first radiator and the second radiator separately. and one end of the second feed line is electrically connected to the second radiator and the third radiator separately.
2 . The electronic device according to claim 1 , wherein each grid subunit is rhombic.
3 . The electronic device according to claim 2 , wherein the width L1 of the feed component satisfies the following formula:
L
1
≥
2
×
L
2
×
sin
θ
2
,
L2 represents a side length of each grid subunit, and θ represents an included angle in each grid subunit in a current direction of the feed component.
4 . The electronic device according to claim 3 , wherein an acute angle in each grid subunit is between 45° and 90°.
5 . The electronic device according to claim 2 , wherein a width corresponding to an acute angle in each grid subunit is between 250 μm and 300 μm.
6 . The electronic device according to claim 2 , wherein a width corresponding to an obtuse angle in each grid subunit is between 400 μm and 450 μm.
7 . The electronic device according to claim 2 , wherein the width of each grid subunit is less than 500 μm.
8 . The electronic device according to claim 1 , wherein the feed component comprises at least one of the plurality of grid subunits in a width direction.
9 . The electronic device according to claim 1 , wherein a width of the gap formed between the first region and the second region is greater than or equal to 6 μm.
10 . The electronic device according to claim 1 , wherein
based on the first feed line performing feeding, an electrical signal in the first radiator is coupled to the fourth radiator through the gap, and an electrical signal in the second radiator is coupled to the third radiator through the gap; and
based on the second feed line performing feeding, an electrical signal in the second radiator is coupled to the first radiator through the gap, and an electrical signal in the third radiator is coupled to the fourth radiator through the gap.
11 . The electronic device according to claim 1 , wherein the display apparatus further comprises a flexible printed circuit (FPC);
one end of the FPC is electrically connected to the first feed line and the second feed line, and the other end of the FPC is electrically connected to a feed unit of the electronic device; and
a wave-trap structure is disposed on the FPC, and the wave-trap structure comprises a slot-type structure or a C-type structure.
12 . An electronic device, comprising a display apparatus, wherein the display apparatus, comprises a cover plate, a display panel, a metal grid, and a transparent dielectric layer, wherein
the transparent dielectric layer is disposed between the cover plate and the display panel;
the metal grid comprises a plurality of grid subunits, and is located on a surface of the transparent dielectric layer:
the metal grid comprises a first region and a second region, and a gap is formed between the first region and the second region; and
the first region comprises a first antenna element, the first antenna element comprises a radiation component and a feed component, one end of the feed component is electrically connected to the radiation component, and a width of the feed component is greater than or equal to a width of each of the plurality of grid subunits, wherein
the first region further comprises a second antenna element;
an operating band of the first antenna element and the second antenna element comprises a first band; and
a distance between the first antenna element and the second antenna element is greater than a half of a first wavelength, and the first wavelength is a wavelength corresponding to a center frequency of the first band.
13 . The electronic device according to claim 12 , wherein the first band is 24.25 GHz to 29.5 GHZ, or 37.5 GHz to 43.5 GHz.
14 . The electronic device according to claim 1 , wherein a width of a metal line that encloses each grid subunit is less than or equal to 2 μm.
15 . The electronic device according to claim 1 , wherein a thickness of a metal line that encloses each grid subunit is between 0.7 μm and 4 μm.
16 . The electronic device according to claim 12 , wherein a width of a metal line that encloses each grid subunit is less than or equal to 2 μm.
17 . The electronic device according to claim 12 , wherein a thickness of a metal line that encloses each grid subunit is between 0.7 μm and 4 μm.
18 . The electronic device according to claim 12 , wherein each grid subunit is rhombic.
19 . The electronic device according to claim 18 , wherein the width, L1, of the feed component satisfies the following formula:
wherein
L2 represents a side length of each grid subunit, and θ represents an included angle in each grid subunit in a current direction of the feed component.
20 . The electronic device according to claim 18 , wherein the width of each grid subunit is less than 500 μm.