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Capacitive Touch Panel Lower Overall Power Consumption, Longer Service Life Aug 11, 2017

Capacitive Touch Panel structure is mainly in the glass screen with a layer of transparent film layer, and then in the conductor layer plus a protective glass, double glass design can completely protect the conductor layer and the sensor.

   Capacitive Touch Panel in the touch screen are coated with long and narrow sides of the electrode, in the conductor to form a low voltage AC electric field. In touching the screen, due to the human body electric field, between the fingers and the conductor layer will form a coupling capacitor, the four sides of the electrode current will flow to the contact, and the current strength and the finger to the electrode is proportional to the distance, after the touch screen controller Will calculate the proportion of current and strength, accurate calculation of the location of the touch point. Capacitive Touch Panel double glass not only protects the conductor and the sensor, more effectively prevent the external environment factors affect the touch screen, even if the screen stained with dirt, dust or grease, Capacitive Touch Panel can still accurately calculate the touch position.

     Capacitive Touch Panel is in the glass surface affixed to a layer of transparent special metal conductive material. When the finger touches the metal layer, the capacitance of the contact changes so that the frequency of the oscillator connected to it changes, and the touch position information can be determined by measuring the frequency change. As the capacitance with temperature, humidity or ground conditions vary, so the stability of poor, often produce drift phenomenon. This kind of touch screen is suitable for the debugging phase of system development.

Capacitive Touch Panel and resistive comparison, the structure is relatively simple. As the Capacitive Touch Panel in the projection capacitor (Capacitive Touch Panel is divided into projection capacitive and surface capacitive two) can support the current popular multi-touch function, and have a higher screen transmittance, lower The overall power consumption, longer life, etc., are constantly out of resistive touch screen market position.

As the rapid growth in market demand, touch industry in recent years has also quickly jumped red, many manufacturers have to join them. From the touch screen industry situation, the industry chain can be divided into upstream components, raw materials supply and materials processing, such as glass substrate manufacturing, ITO film manufacturing, PET manufacturing, chemical material supply, control IC supply;