Capacitive Touch Charge Transfer Lateral Mode Technology 8

Typically, two or more layers of ITO are required to be deposited on the back of glass or plastic-coated lenses. Since each additional layer increases costs and reduces light transmittance by 9%, the number of layers should be minimized as much as possible. Although manufacturers' touch screen chips can fully support multi-layer diamond patterns, these chips can also utilize proprietary single-layer film technology. Compared to multi-layer techniques, single-layer film electrodes offer significantly higher transparency, thinner profiles, and lower costs, naturally making them highly favored by designers. diode

The dual-axis multi-contact technology has been introduced

It is also feasible to utilize a single-layer membrane for synchronous dual-contact detection, but adopting a double-layer technology capable of simultaneously resolving multiple contact events would yield significantly better performance. As shown in Figure 7, the three-dimensional measurement results of the electric field when a user employs three fingers and the thumb in a laboratory test model.

Figure 7: Three-dimensional measurement results of the electric field when using multiple fingers

By connecting an eight-electrode X layer placed on a six-electrode Y layer, the controller can support dual-touch screens up to 8 inches in size. Additionally, this multifunctional controller can detect up to six sliders or forty-eight discrete buttons, or a combination of buttons, sliders, and touch areas. This controller is a pin-reduced version that, using a similar simple wiring diagram (Figure 8), can drive eight X-axis and receive four Y-axis signals, or distinguish up to thirty-two discrete buttons.diode