Multi-point touch screen and touch detection method

G - Physics – 06 – F

Patent

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Details

G06F 3/043 (2006.01)

Patent

CA 2713923

A multi-point touch screen suitable for a mobile apparatus is disclosed, which can output accurate touch images of a touch region by scanning, line by line, the touch region via an induction region positioned below the touch region. A method for detecting the occurrence of touch is characterized in that variations of rays are detected to determine the occurrence of touch, such variations are caused by the fact that media propagated by the rays response to variation of an electric field, and the variation of the electric field results from approaching of a conductor or an electrified body.

L'invention porte sur un écran tactile multipoint applicable à un dispositif mobile, qui effectue un balayage ligne par ligne pour une zone tactile par l'intermédiaire d'une zone d'induction sous la zone tactile, et qui peut émettre une image exacte de la zone tactile. L'invention porte également sur un procédé pour détecter l'occurrence du toucher, ses caractéristiques sont la détection des changements de rayon pour déterminer l'occurrence du toucher, ces changements étant provoqués par le milieu transmis par la radiale pour répondre au changement du champ électrique, les changements du champ électrique étant provoqués par la proximité du conducteur ou d'un corps électrifié.

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