We&#;re going to get a little bit more technical here. There are two main types of resistive touch screens (4-wire and 5-wire) and two options of technology for capacitive touch screens (surface capacitive and projected capacitive). Among these four types, only one by default supports multi-touch controls: the projected capacitive touch screen. This is in stark contrast to the other devices, which only support single touch. There is one caveat:avcompany has developed a 2-touch resistive controller that only works on 5-wire resistive touch screens.
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The use of multi-touch support allows for greater versatility in terms of control, making it the ideal choice for some industrial and commercial applications. Multi-touch technology can collect multi-point signals at the same time and judge the meaning of each signal, allowing for gesture recognition (like pinching). This is why most smartphones and tablets use projected capacitive screens.
Which is better &#; Resistive or Capacitive Touch Screens?
If you are looking for a clear-cut answer to the above, sorry &#; it&#;s not that simple&#; (but it&#;s capacitive in our book). Both forms of touchscreens are good at certain things in certain environments, but maybe that doesn&#;t make either one better (unless it&#;s a capacitive screen).
You may have spotted we have a favourite among the two options, but this is only because we (and you) most likely use a capacitive touch screen daily.
Resistive and Capacitive &#; What&#;s the difference?
In simple forms, it is in the name. A resistive touchscreen uses resistance in the form of minor downward pressure on a screen. A resistive screen has two layers, a hard plastic or glass top layer and a bottom layer that conducts charge. The 2 layers are separated with spacers and when pressure is applied there is a change in charge in that location, which allows the software to recognise point of contact (touch).
A capacitive touchscreen works differently. The glass on a touchscreen is usually coated with ITO (Indium Tin Oxide), which is both transparent and conductive. Beneath the screen in 4 corners, there is usually four electrodes which maintain a voltage across the glass. When you touch the glass, sensors detect the change in voltage and can determine precise positions. Your own physical touch has altered the voltage as we are naturally conductive.
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Resistive and Capacitive Touch Screens&#; Which is better?
We deliberately said positions as plural in last paragraph because this is where capacitive screens come into their own. Multiple touches, swipes and pinches can be detected with capacitive touch screens. Resistive screens generally can register one command at any given time.
This is why most smartphones and tablets use capacitive screens. There is an added benefit of better clarity than that of resistive screens (which utilise the two layers causing a loss of image quality on screen).
However, resistive touchscreens have their place, and we probably couldn&#;t live without them. Generally, they are more robust than capacitive screens which makes them ideal for use in public facing environments as well as military and medical environments.
Resistive touchscreens can also be used whilst wearing gloves. For military and medical, that can be vital. We were joking at the start of this article &#; capacitive screens are not better, we think both types of touchscreen are equal in terms of what they do and how they benefit the world we live in, in differing ways.
Resistive and Capacitive Touch Screens Supplier
We can provide both capacitive and resistive touch screens, from development to production volumes, and in sizes ranging up to 1m x 1m. The screens can be provided with anti-glare and other finishes as required, and produced on glass or plastic (flexible or rigid).
If you would like to know more about our touchscreens, please get in touch with us today to discuss your specific requirements.
Contact us to discuss your requirements of Low Cost Resistive Touch Screen. Our experienced sales team can help you identify the options that best suit your needs.