A Complete Collection of 100000 Whys
Fav十万个为什么
为什么手机屏幕沾水后触控失灵？
简单的摘要：手机屏幕沾水后触控失灵的原因主要是水滴的导电性、水滴的阻隔作用以及对电容屏工作原理的干扰。
1、水滴的导电性：水滴具有一定的导电性，当手指通过水滴触摸屏幕时，水滴会分散手指的电流，导致电容屏无法准确识别触摸信号。
2、水滴的阻隔作用：水滴会形成一层薄膜，阻隔手指与屏幕的直接接触，影响电容屏对触摸信号的感应。
3、对电容屏工作原理的干扰：电容屏通过检测人体电流的微小变化来定位触摸位置，水滴的存在会干扰这种检测，导致触控失灵。
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