Method of recognizing touch

摘要

The disclosure relates to a method for recognizing touch. A first value T1 and a second value T2 are set. A maximum sensing value Cpeak is obtained. A position of the Cpeak is defined as a sensing position A. Sensing values C1, C2, C3, and C4 of four neighboring sensing positions are obtained. Cpeak is compared with T1 and T2. When Cpeak is greater than or equal to T1, a touch with finger is recognized. When Cpeak is smaller than T2, no touch is recognized. When Cpeak is greater than or equal to T and smaller than T1, following steps are taken. A third value T3 is set. A first total sensing value Ct of C1, C2, C3, and C4 is compared with T3. When Ct is greater than or equal to T3, a touch with glove is recognized. When Ct is less than T3, no touch is recognized.

主权项

1. A method of recognizing touch on a touch panel, wherein the touch panel comprises a plurality of driving electrodes and a plurality of sensing electrodes, the plurality of driving electrodes intersect with the plurality of sensing electrodes to define a plurality of sensing positions, and the method comprising:
setting a first value T1 and a second value T2, wherein the second value T2 is smaller than the first value T1; sensing touch signals and obtaining a maximum signal value Cpeak, defining a position of the maximum signal value Cpeak as a sensing position A, and obtaining signal values C1, C2, C3, and C4 of four sensing positions adjacent to the sensing position A; comparing the maximum signal value Cpeak with the first value T1 and the second value T2, when the maximum signal value Cpeak is greater than or equal to the first value T1, recognizes as a touch with finger; when a plurality of first signal values C1 is smaller than the second value T2, recognizes as no touch; and when the plurality of first signal values C1 is greater than or equal to the second value T2 and smaller than the first value T1, taking following steps: setting a time period; driving the plurality of driving electrodes several times and sensing a plurality of third signal values during the time period; selecting a maximum signal value C′peak from the plurality of third signal values of each time to obtain a plurality of maximum signal values C1peak, and calculating an signal values C′peak of the plurality of maximum signal values C′peak, when the plurality of maximum signal values C′peak satisfy following formula: 0.8 C′peak ≦C′peak≦1.2 C′peak, going to the step of setting the third value T3; and when not, recognizes as no touch; setting a third value T3; defining a first total value Ct by adding the maximum signal value Cpeak with the signal values C1, C2, C3, and C4, and comparing the first total value Ct and the third value T3, when the first total value Ct is greater than or equal to the third value T3, recognizes as a touch with glove; and when the first total value Ct is less than the third value T3, recognizes as no touch.