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Touch panel

What's Touch panel?

A Touch Panel is a sensor type device fabricated by forming a transparent electrode on a substrate of glass or film.

There are different types of touch panels such as capacitive, resistive, IR, etc.Futaba only develops/produces Capacitive Touch Panel which recognizes the touched coordinates by a change in the touch capacitance.
The touch panel is typically used in conjunction with a display device such as a LCD.

When you touch the screen of the touch panel, the position coordinates/operation information is processed by a microprocessor and related software.This provides an intuitive user interface by directly touching the screen without any input devices required such as a keyboard or mouse.

The adoption of a touch panel for home appliances, vehicles, smartphones, etc. has become widespread. Consequently, providing a touch panel on the display is essential.


Structure

The X and Y electrode is placed on one surface of a glass substrate and then wired out to provide signals through an FPC/COF and on to the system interface.



Operating principle

The capacitive touch panel consists of X and Y transparent electrodes.
Each sensor line is scanned sequentially.
The amount of change in the capacitance is sensed, position calculated, and provided to the system as the touch coordinates.