MUTUAL-CAPACITANCE-TYPE ACTIVE TOUCH CONTROL SYSTEM

摘要

Provided is a touch control screen with a mutual capacitance structure arranged with an active device. An active device array isolates each touch control sensing unit on a touch control screen, so that each sensing unit on the screen senses the touch screen in a manner of mutual capacitance independent to each other, and each sensing unit senses the touch control of a touch control object independently in a manner of mutual capacitance. The dispersing and crosstalk of touch control signals among different sensing electrodes are eliminated, and the detection of the touched position is introduced into the digitalization in space. The judgment program after detection is greatly simplified, a large number of the resources of the post-processing chip can be saved, it is possible to lower the overall costs, and the realization of the touch control screen is easy to be standardized. Introducing an active device on the touch control screen can not only make it easy to judge multi-point judgment, but can also realize all-point touch control, the touch control detection capability is extended from point to plane, improving the touch control screen to a new level.