What is a resistive screen? A resistive touch screen is a sensor that converts the physical position of touch points in a rectangular area into voltage representing X and Y coordinates. Many LCD modules use resistive touch computers, which can generate screen bias voltage using four, five, seven, or eight wires while reading the voltage of touch points. So what is a capacitive screen? A capacitive touch screen, also known as a capacitive touch screen, is a four-layer composite glass screen that uses capacitive touch technology to operate. The inner surface and interlayer of the capacitive touch panel pc are each coated with an ITO conductive layer, and the outermost layer is a silicon glass protective layer.
Resistive screens used to be popular products in the past and became the standard for many touch products. However, with the advent of capacitive screens, the industrial pc solutions market competitiveness of resistive screens has gradually declined. However, in the field of industrial panel PCs, resistive and capacitive screens are still the most commonly used touch screens. Capacitive screen technology is later than resistive screens, but the technology is more advanced, and the price is naturally more expensive. For industrial panel PC with the same configuration, the prices can vary greatly from Geshem panel pc manufacturer, in part due to screen differences. So how do we quickly determine which type of screen we are using on an industrial tablet? Let's take a look!
Resistive screens are soft screens that use pressure sensing operation modes to generate screen bias voltage and immediately read the voltage of the touch point. It can be operated with fingers, nails, or pen, so the industrial resistive touchscreen is not affected by dust, humidity, and oil pollution and can be used in environments with lower or higher temperatures. Capacitive screens are the mainstream touch screens now and are also called "hard screens". The surface is a capacitive surface, the current absorbed by fingers flows out through electrodes to complete touch screen control. It locates using the current generated when biology contacts the screen, and can only be operated with fingers, utilizing the current induction that exists in the human body, whereas non-biology like nails and pens cannot operate it.
The surface of resistive screens needs to be bent, and the screen hardness is relatively low, so it can be pressed down easily. Therefore, resistive screens are easy to scratch and usually require protective films for protection. Without protective films, they can easily become damaged or scratched. The outermost layer of the capacitive screen on industrial tablets is a glass liner, which is smooth and hard, not easy to scratch. However, severe impacts can cause the entire screen glass to crack.
The response speed of resistive screens on industrial tablets is much slower than that of capacitive screens and often results in invalid operations when dragging. Moreover, resistive screens cannot perform multi-touch operations, while capacitive screens can be well adapted to multi-touch.