Touch detection apparatus, touch control apparatus, touch and display driver integration chip, touch control display apparatus, and touch detection and resistance measurement method

摘要

The present application provides a touch detection apparatus. The touch detection apparatus includes a square wave generating circuit configured to generate a first square wave signal having a frequency correlated to a magnitude of a mutual capacitance at a position at which touch occurrence status is to be determined; a frequency detecting circuit connected to the square wave generating circuit and configured to detect a first frequency of the first square wave signal; and a micro-processor connected to the frequency detecting circuit and configured to determine whether a touch has occurred based on the first frequency of the first square wave signal.