Even if you have never heard of capacitive touch screens, you have been using them ever since you picked up your first smartphone or tablet.
Capacitive touch screens are made of single or multiple layers of material that are coated with a conductor such as Indium Tin Oxide. A protective cover seals the assembly off from the environment.
When another electrical conductor, like a bare fingertip or a stylus, touches the surface, an electric circuit is completed at that location. Sensors embedded in the glass then detect the location of the flow of current, which is then registered as a touch event.
This is different from the way that resistive touch technology works, where physical pressure is involved.
Capacitive touch technology can be divided into:
Pros of Capacitive Touch Screens
The Baanto ShadowSense Advantage
If you have ever tried to use the touch screen of your phone when it is wet, or when wearing gloves, you will know the limitations of capacitive screens. Apart from being unable to perform in such situations, capacitive touch screens also have other issues.
Baanto ShadowSense touch screens are designed to overcome these issues.
|Cons of Capacitive Touch Screens||ShadowSense Benefits|
|Might not be able to work with non conductors of electricity like gloved fingers||Screens work with non conductors like gloved fingers or paintbrushes|
|Affected by high humidity, dust and viscous fluids as they interfere with conductivity||Screens work even when covered with water, ketchup, grease or foreign objects like mud|
|Affected by “ghosting” due to build up of static electricity, causing the screen to lock up or malfunction||The screen will not “ghost”|
|Are costly to fabricate because of two ITO screens, and do not scale economically||Screens can scale up cost effectively to sizes of 267’’ without any compromise in performance|
|May be affected by electrical noise and susceptible to scratches||Screens cannot be scratched, even by a coin or a credit card and is not affected by electrical interference|
|Will not work if the screen is cut or smashed as the ITO layer will be affected||Touch function is independent of the glass and screen will keep on working even if it is broken|