TOUCH SCREEN APPARATUS AND CONTROL METHOD THEREOF

TOUCH SCREEN APPARATUS AND CONTROL METHOD THEREOF

Disclosed is a touch screen apparatus based on ultrasonic waves. According to the present invention, the touch screen apparatus includes: a display; a plurality of ultrasonic sensors radiating ultrasonic signals; and a processor, when the ultrasonic signals radiated from the plurality of ultrasonic...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: YOO, Jae-hyeon, CHOI, Sung-do
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
CALCULATING
COMPUTING
COUNTING
ELECTRIC DIGITAL DATA PROCESSING
PHYSICS
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Beschreibung
Zusammenfassung:Disclosed is a touch screen apparatus based on ultrasonic waves. According to the present invention, the touch screen apparatus includes: a display; a plurality of ultrasonic sensors radiating ultrasonic signals; and a processor, when the ultrasonic signals radiated from the plurality of ultrasonic sensors are reflected from an object in contact with the display and received by each of the plurality of ultrasonic sensors, determining a touch point of the object based on a time of flight (ToF) of each of the received ultrasonic signals.