US 10,891,004 B2
Electronic device with ultrasonic touch
Jui-Chieh Hsiang, New Taipei (TW); and Chih-Chiang Chen, New Taipei (TW)
Assigned to Acer Incorporated, New Taipei (TW)
Filed by Acer Incorporated, New Taipei (TW)
Filed on Mar. 11, 2019, as Appl. No. 16/297,752.
Claims priority of application No. 107142735 A (TW), filed on Nov. 29, 2018.
Prior Publication US 2020/0174595 A1, Jun. 4, 2020
Int. Cl. G06F 3/043 (2006.01); G06F 3/041 (2006.01); G06F 3/0488 (2013.01)
CPC G06F 3/043 (2013.01) [G06F 3/0412 (2013.01); G06F 3/04886 (2013.01)] 6 Claims
OG exemplary drawing
 
1. An electronic device comprising:
a plurality of pixel areas, wherein each of the pixel areas includes:
a display device configured to display an image; and
an ultrasonic transmission device and an ultrasonic reception device configured to be adjacent to the display device,
wherein the display devices respectively included in the pixel areas are disposed in column arrangement in a display area, the ultrasonic transmission devices and the ultrasonic reception devices respectively included in the pixel areas are disposed in a touch area, and the display area and the touch area do not overlap with each other;
a substrate configured to be adjacent to the ultrasonic transmission device and the ultrasonic reception device;
an ultrasonic controller coupled to the ultrasonic transmission device and the ultrasonic reception device and configured to generate a control signal, wherein the ultrasonic transmission device generates an ultrasonic wave in a direction toward the substrate according to the control signal, and the ultrasonic reception device simultaneously receives the ultrasonic wave according to the control signal through the substrate and generates a sensing signal corresponding to the received ultrasonic wave; and
a sensing circuit coupled to the ultrasonic reception device to receive the sensing signal and determine a position where a touch occurs according to the sensing signal to generate a touch signal.