Touch screen equipment and method for realizing proximity induction thereof

Abstract

The invention discloses touch screen equipment and a method for realizing proximity induction thereof. The method comprises the following steps of: scanning an induction channel of a capacitive touch screen in a whole layer manner at a time interval for scanning the induction channels of the capacitive touch screen one by one; and comparing a result obtained by scanning the induction channel of the capacitive touch screen in the whole layer manner with a preset threshold value, and when the result obtained by scanning in the whole layer manner is greater than the preset threshold value, triggering corresponding processing on a large-area contact event. By the method, proximity induction of the touch screen to a large-area object can be realized; a large-area proximity event in operation of a user and a normal single-point or multi-point touch event can be effectively distinguished, so that unnecessary false triggering can be avoided; furthermore, a proximity induction function is fused into the touch screen and replaces an independent proximity inductor in terminal equipment, so that the structural space of the terminal equipment can be saved; and the cost of the whole terminal equipment can be reduced.

Description

technical field [0001] The invention relates to the technical field of touch screens of digital terminals, in particular to a touch screen device and a method for realizing proximity sensing thereof. Background technique [0002] In today's digital electronics industry, it is more and more common for human-computer interaction terminals to use touch screens as user input devices. Touch screen input is intuitive and convenient, what you see is what you get, and does not take up display space. These advantages are beyond the reach of traditional input devices (such as keyboards, etc.). In recent years, with the gradual application of capacitive touch screens, human-computer interaction has entered the era of finger touch. With a capacitive touch screen, users don't need to worry about losing the touch pen, and can use their fingers to complete the operation. [0003] Capacitive touch screens rely on the principle of capacitive coupling to realize touch recognition. Any objec...

AI Technical Summary

Problems solved by technology

However, such large-area proximity events are easily confused with touch events with only one (single touch) or several small areas (multi-touch). One or several small areas touch the touch screen, in this case the touch screen will be recognized as a single-point or multi-point operation

In addition, even if a large-area object touches the touch screen, the terminal needs a complex algorithm to distinguish it from the normal large-area operation touch screen event, for example: different from the thumb pressing the touch screen in normal use; and this algorithm is not reliable, and it is easy to cause False trigger

[0005] To sum up, the existing technology still cannot provide a solution for integrating the proximity sensing function into the touch screen and effectively avoiding confusion of large-area proximity events with normal single-point or multi-point touch events

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