Device display control method, electronic device, and communication system
This application discloses a device display control method, an electronic device, and a communication system, and relates to the field of wireless remote control technologies. This can accurately determine a presentation position of a displayed object (for example, a cursor) corresponding to a control device on a display device and provide better device control experience for a user. In this solution, the presentation position of the displayed object is determined based on a position that the control device points to on a display. Therefore, in both a single-display device scenario and a multi-display device scenario, convenient, immersive, and precise device control experience can be brought to the user.
1 . A device display control method, wherein the method is applied to at least one display device, the at least one display device comprises a first display device, the first display device comprises a first positioning unit and a first display, the first positioning unit comprises a first antenna array, the first antenna array comprises at least three first antenna elements, wherein the first positioning unit is mounted on the first display device, and the method comprises:
receiving, by the first antenna array of the first positioning unit, a first signal from a second antenna array of a control device, wherein at least two of the first antenna elements of the first antenna array are distributed in a first direction, and at least two of the first antenna elements of the first antenna array are distributed in a second direction, wherein a distance between any two of the first antenna elements among the at least three first antenna elements that have functions of receiving the first signal is less than or equal to a wavelength of the first signal; and
sending, by the first antenna array of the first positioning unit, a second signal to the second antenna array of the control device, wherein the first signal and the second signal are used to determine a position of a first cursor corresponding to a first pointing position of the control device, and the first cursor is displayed on the first display device.
2 . The method according to claim 1 , wherein the method further comprises:
based on a second pointing position of the control device moving out of a first edge area of the first display, no longer displaying the first cursor on the first display; and
based on a third pointing position of the control device moving into the first edge area, displaying the first cursor on the first display.
3 . The method according to claim 1 , further comprising:
following a movement track of the control device, and displaying, on the first display, a display track of the first cursor that matches the movement track.
4 . The method according to claim 1 , wherein the method further comprises:
based on a fourth pointing position of the control device being in a preset control hot area, displaying a corresponding interface effect when the first cursor is displayed.
5 . The method according to claim 1 , wherein the at least one display device further comprises a second display device, an orientation relationship between the second display device and the first display device is a first relationship, the second display device comprises a second positioning unit and a second display, and the method further comprises:
based on a fifth pointing position of the control device moving out of a first edge area of the first display, skipping displaying the first cursor on the first display; and
based on a sixth pointing position of the control device moving into a second edge area of the second display, following a movement track of the control device, and displaying the first cursor on the second display.
6 . The method according to claim 1 , wherein each of the first signal and the second signal comprises one or more of the following: an ultra-wideband (UWB) radio signal, or a millimeter-wave radar signal.
7 . The method according to claim 1 , wherein the first direction is perpendicular to the second direction.
8 . The method according to claim 1 , wherein the second antenna array comprises at least two second antenna elements.
9 . The method according to claim 1 , wherein the plurality of first antenna elements are a first antenna, a second antenna, and a third antenna, the first antenna is located at an intersection point of the first direction and the second direction, the second antenna is located on a side that is of the first antenna and that is in the first direction, and the third antenna is located on a side that is of the first antenna and that is in the second direction.
10 . The method according to claim 8 ,
wherein a distance between any two second antenna elements that are in the at least two second antenna elements and that have functions of receiving a second signal is less than or equal to a wavelength of the second signal.
11 . The method according to claim 1 , wherein a first antenna element of the plurality of first antenna elements is an antenna integrated with sending and receiving, or the first antenna element comprises a receive antenna and a transmit antenna.
12 . The method according to claim 1 , wherein the plurality of first antenna elements are distributed in an L shape, a triangle, or a rectangular array.
13 . The method according to claim 1 , wherein a plane comprising the first direction and the second direction is parallel to a display interface of the first display device.
14 . The method according to claim 1 , wherein the first antenna array is located on an upper side of the at least one display device.
15 . A display device, wherein the display device comprises a positioning unit and a display, and the positioning unit and the display are configured to support the display device in implementing the method according to claim 1 .
16 . A display system, comprising:
a display device; and
a control device;
wherein the display device comprises a first positioning unit and a display, wherein the first positioning unit is configured to receive a first signal from the control device and send a second signal to the control device, and the first positioning unit and the display are configured to support the display device in implementing the method according to claim 1 ; and
wherein the control device comprises a second positioning unit, wherein the second positioning unit is configured to send the first signal to the first positioning unit of the display device and receive the second signal.
17 . The method according to claim 1 , wherein at least one of the first antenna array or the second antenna array operates in an ultra-high frequency (UHF) band.
18 . The method according to claim 1 , wherein the position of the first cursor corresponding to the first pointing position of the control device is further determined using the first signal, the second signal, and a size of the first display.
19 . The display device according to claim 15 , wherein each of the first signal and the second signal comprises one or more of the following: an ultra-wideband (UWB) radio signal, or a millimeter-wave radar signal.
20 . The display device according to claim 15 , wherein the plurality of first antenna elements are a first antenna, a second antenna, and a third antenna, the first antenna is located at an intersection point of the first direction and the second direction, the second antenna is located on a side that is of the first antenna and that is in the first direction, and the third antenna is located on a side that is of the first antenna and that is in the second direction.
21 . The display device according to claim 15 , wherein a plane comprising the first direction and the second direction is parallel to a display interface of the first display device.
22 . The display device according to claim 15 , wherein the first antenna array is located on an upper side of the display device.
23 . The display system according to claim 16 , wherein at least one of the first antenna array or the second antenna array operates in an ultra-high frequency (UHF) band.
24 . The display system according to claim 16 , wherein the position of the first cursor corresponding to the first pointing position of the control device is further determined using the first signal, the second signal, and a size of the first display.
25 . The display system according to claim 16 , wherein each of the first signal and the second signal comprises one or more of the following: an ultra-wideband (UWB) radio signal, or a millimeter-wave radar signal.
26 . The display system according to claim 16 , wherein the plurality of first antenna elements are a first antenna, a second antenna, and a third antenna, the first antenna is located at an intersection point of the first direction and the second direction, the second antenna is located on a side that is of the first antenna and that is in the first direction, and the third antenna is located on a side that is of the first antenna and that is in the second direction.
27 . The display system according to claim 16 , wherein a plane comprising the first direction and the second direction is parallel to a display interface of the first display device.
28 . The display system according to claim 16 , wherein the first antenna array is located on an upper side of the display device.
29 . The display system according to claim 16 , wherein the second antenna array comprises at least two second antenna elements.
30 . The display system according to claim 29 , wherein a distance between any two second antenna elements that are in the at least two second antenna elements and that have functions of receiving a second signal is less than or equal to a wavelength of the second signal.