Principle The principle of a capacitive touch panel is based on sensing the capacitance variation between two conductive layers. These two conductive layers are arranged parallel and spaced by an isolator layer, so that when electric current is applied, a field of stored electrons, also known as capacitance, is achieved between them. Meanwhile, the human body also has stored electrons and therefore exhibits capacitance. When fingers touch or they are just close in proximity to the panel, the value of capacitance between two conductive layers will be affected and varied. Therefore by sensing this variable, the external linked IC can locate the touch.
Structure Advantage
- Support Cover lens - Pattern invisible
- Gesture recognition
- Better optical performance
- Finger or conductor I/P
- Don't need Active Force
- In Cell and On Cell Type
In Cell Capacitive Touch Panel Technology Structure
TFT-LCD Module（Color Filter/Touch Sensor on one glass）
Cover Lens
On Cell Capacitive Touch Panel Technology Structure
