Abstract: An active stylus that is applicable to a touch panel. The touch panel comprises driving electrodes and sensing electrodes. Each driving electrode transmits a panel driving signal. The sensing electrodes receive the panel driving signal. The active stylus comprises a receiving element receiving the panel driving signal; a sensing module obtaining signal characteristics of the panel driving signal; a signal generator generating a simulated driving signal; a driving element transmitting the simulated driving signal; and a control unit. The control unit uses the signal generator to generate the simulated driving signal, which is synchronous with and identical in phase to the panel driving signal, according to the signal characteristics of the panel driving signal. Thereby, the touch panel can distinguish the touch of an active stylus from the touch of a hand and realize a multi-point touch control function in a mutual-capacitance mode.

Abstract: A noise reduction capacitive touch panel comprises a sensing area, a non-sensing area, a main body, a plurality of driving electrodes, a plurality of driving electrode wires, a plurality of sensing electrodes, a plurality of sensing electrode wires, at least one noise sensing electrodes and at least noise sensing electrode wires. The sensing area is located in the middle of the panel and the rest area of the panel is the non-sensing area. The main body is a flat board having a normal line. The driving electrodes are strip electrodes and disposed on the main body. The driving electrodes are perpendicular to the normal line. The driving electrodes wires are disposed on the main body. The sensing electrodes are strip electrodes and disposed on the main body. Capacitive coupling is occurred between the driving electrodes and the sensing electrodes because there is a distance between them.

Abstract: A projected capacitive touch panel comprises a touch control integrated circuit, sensing electrodes, driving electrodes, a MCU, a AC signal generator, a sensing bus, and a driving bus. The driving electrodes are made of high resistance material. One driving electrodes is selected by MCU based on firmware program as selected driving electrode. A low voltage AC signal is generated by the AC signal generator. The AC signal is transmitted to the selected driving electrode and its adjacent two driving electrodes via the driving bus. The rest of driving electrodes are connected to a fixed DC level. Providing the same AC signal to three driving electrodes simultaneously can induce higher sensing signal in the sensing electrodes.

Abstract: A projected capacitive touch panel comprises a touch control integrated circuit, sensing electrodes, driving electrodes, a MCU, a AC signal generator, a sensing bus, and a driving bus. The driving electrodes are made of high resistance material. One driving electrodes is selected by MCU based on firmware program as selected driving electrode. A low voltage AC signal is generated by the AC signal generator. The AC signal is transmitted to the selected driving electrode and its adjacent two driving electrodes via the driving bus. The rest of driving electrodes are connected to a fixed DC level. Providing the same AC signal to three driving electrodes simultaneously can induce higher sensing signal in the sensing electrodes.

Abstract: A capacitive touch sensor architecture comprises a visible touch area, a plurality of wires, a plurality of winding resistances, and a reference strip capacity sensor. The visible touch area comprises a plurality of strip capacity sensors. The strip capacity sensors comprises end a and end b. said strip capacity sensors comprises a plurality of non-conductive barriers. The strip capacity sensors being used to sense touch signals to calculate touch point coordinate. The winding resistances are attached to both sides of each said strip capacity sensor. The wires have different length according to the position of each strip capacity sensor the wires are connected to. By adding non-conductive barrier into strip capacity sensors the edge resisting rate can be increased. By adding adjustable winding resistance to the two ends of each strip capacity sensors, the resistance difference can be eliminated.