Touch panel and dynamic control method thereof

Abstract

The invention provides a touch panel and a dynamic control method thereof. The dynamic control method for a touch panel, includes the steps of: providing a dynamic resolution control circuit for configuring a touch panel to possess a first resolution and a second resolution; and providing an induced signal gain control circuit for configuring the touch panel to have a first gain corresponding to the first resolution, and a second gain corresponding to the second resolution, wherein, the resolution of the touch panel will change from the first resolution to the second resolution when an object is within a distance from the panel. In addition, the present invention further presents a touch panel system and a dynamic control method for adjusting the sensitivity of a touch panel.

Description

technical field [0001] The present invention relates to a dynamic drive control method for a touch panel, in particular to a dynamic drive control method for a touch panel that can dynamically adjust the resolution, scanning frequency, signal gain or trigger conditions of the touch panel. Background technique [0002] Since Apple Inc. launched the iPhone in 2007, its multi-touch function has been loved by consumers. Since then, touch technology has swept the consumer electronics market, and products such as mobile phones and tablet computers have all seen capacitive touch. control technology. [0003] Please refer to Figure 1(a) to Figure 1(c) , which respectively show the operation diagrams of the known projected capacitive touch panel at different distances D1 , D2 and D3 . In the current operation mode of Projected Capacitive Touch (PCT), the sensing signal (which can be in voltage or current mode) on the equivalent capacitance of the sensing area 200 of the touch panel...

AI Technical Summary

Problems solved by technology

As shown in Figure 2(a), although the current self-capacitance-driven projected capacitive touch panel 400 has the function of Z-axis sensing, it has: 1. fixed sensor resolution; 2. single-point non-contact Detection; 3. Two sets of detection circuits and calculation algorithms are required; and 4. Disadvantages such as power consumption during standby

As shown in FIG. 2(b), although the current mutual-capacitance-driven projected capacitive touch panel 400 also has the function of Z-axis sensing, it has: 1. fixed sensor resolution; Point detection; 3. Two sets of detection circuits and calculation algorithms are required; and 4. Disadvantages such as power consumption during standby are truly a fly in the ointment

[0006] In addition, known touch panels only have a fixed signal gain and a fixed trigger value

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