Display antenna

Patent metadata

Field	Value
Publication number	US-2024380096-A1
Application number	US-202418642879-A
Country	US
Kind code	A1
Filing date	Apr 23, 2024
Priority date	May 9, 2023
Publication date	Nov 14, 2024
Grant date	—

Abstract

Provided is a display antenna including a display including a plurality of light emitters arranged in a lattice pattern, a touch sensor that is disposed to overlap the display and in which a plurality of touch electrodes transmitting light in a wavelength band of a visible region are arranged in a lattice pattern, and an antenna array that is disposed to overlap the touch sensor and in which a plurality of patch antennas transmitting the light in the wavelength band of the visible region are arranged in a lattice pattern. The touch electrode also serves as a ground electrode of the patch antenna disposed above the touch electrode.

First claim

1 . A display antenna comprising:
a display including a plurality of light emitters arranged in a lattice pattern; a touch sensor that is disposed to overlap the display and in which a plurality of touch electrodes transmitting light in a wavelength band of a visible region are arranged in a lattice pattern; and an antenna array that is disposed to overlap the touch sensor and in which a plurality of patch antennas transmitting the light in the wavelength band of the visible region are arranged in a lattice pattern, wherein the touch electrode also serves as a ground electrode of the patch antenna disposed above the touch electrode.

2 . The display antenna according to claim 1 , comprising
a phase shifter disposed in a gap region interposed between the light emitters adjacent to each other, wherein the phase shifter is associated with at least one of the plurality of patch antennas, and the phase shifter is configured to shift a phase of a signal to be transmitted and received.

3 . The display antenna according to claim 2 , wherein
the phase shifter is connected to at least one of the plurality of patch antennas through a feeding electrode disposed in a through hole formed in the touch sensor.

4 . The display antenna according to claim 2 , wherein
the phase shifter is connected to at least one of the plurality of patch antennas by electromagnetic coupling through a through hole formed in the touch sensor.

5 . The display antenna according to claim 4 , wherein
the patch antenna is connected to the phase shifter disposed below the patch antenna by electromagnetic coupling through the through hole formed in the touch sensor.

6 . The display antenna according to claim 1 , comprising
a controller that comprises a memory storing instructions; and a processor connected to the memory and configured to execute the instructions to switch a connection between the plurality of patch antennas included in the antenna array to configure a phased array antenna, switch on and off states of the plurality of touch electrodes included in the touch sensor to detect contact, and detect a contact position of an indicator according to a change in capacitance at an intersection of a row formed by the plurality of touch electrodes arranged in a row direction and a column formed by the plurality of touch electrodes arranged in a column direction.

7 . The display antenna according to claim 6 , wherein
the processor of the controller is configured to execute the instructions to set the touch electrode disposed below the patch antenna functioning as an antenna to the off state.

8 . The display antenna according to claim 6 , wherein
the processor of the controller is configured to execute the instructions to set the patch antenna disposed above the touch electrode in an active state to an off state.

9 . The display antenna according to claim 8 , wherein
the processor of the controller is configured to execute the instructions to set the plurality of patch antennas disposed above the touch electrode in the active state to the same potential to function as a portion of the touch sensor.

10 . The display antenna according to claim 9 , wherein
the processor of the controller is configured to execute the instructions to display a user interface associated with a position in the touch sensor on the display and associates the detected contact position of the indicator with an input image displayed at the contact position in the display to determine the selected input image.

Assignees

• Nec Corp

Inventors

• Nihei Ryota
• Watanabe Shingo
• Okumura Fujio

Classifications

• H01P1/184

  Strip line phase-shifters (H01P1/181, H01P1/185, H01P1/19 take precedence) · CPC title

• H01Q3/38

  the phase-shifters being digital · CPC title

• H01Q21/065

  Patch antenna array · CPC title

• H01Q1/243 Primary

  with built-in antennas · CPC title

• H01Q1/44

  using equipment having another main function to serve additionally as an antenna {, e.g. means for giving an antenna an aesthetic aspect}(H01Q1/27 - H01Q1/34 take precedence) · CPC title