Touch screen cell phones
If you think all touch mobile phones are the same you are sadly mistaken. With the pace of technology growing by leaps and bounds the ways and means that are developed for touch screens is amazing and slowly phones with buttons are becoming phased out by the new phones on the block. There are three main types of touch screen mobile phones: resistive screen, capacitive touch screen and Infrared touch screen.
Resistive screens can be used with any object touching the screen. More pressure is required to press the button compared to the other two types. How the resistive touch sensitive screen works is: there are two layers of the screen, electricity flows through both layers and when you touch one layer it must contact the other and the information associated with the touch is sent to the processor of the phone.
Capacitive touch sensitive screens come in two different types, the first type can recognize multiple touches at the same time while the other cannot. How they work is simple, they must be touched with something that has a flow of electricity, such as a human finger. When the current changes its flow, the processor of the phone is notified of the change and pinpoints the area of contact. These types of screens cannot be worked by just any object, the object must have some flow of electricity going through it to function. For those not in the know, capacitive screens can be mistaken as heat sensitive screens because of this fact.
Infrared screens are the most expensive type of screen, but they also provide the most sensitive type of screen. Infrared screens come in two types, optical and heat touch sensitive screens. Optical work with the typical infrared rays and a gentle touch will register in the processor of the phone to locate where you’ve touched the phone. The heat sensitive touch screen will do basically the same thing, except it responds to the warmth of whatever is touching the screen. This can be a drawback on a cold day however.
Altech Autopage South Africa is the largest independent service provider in the country, offering you the right networks, right packages, right advice as well as cellphones.
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