What is tft touchscreen means?

Answer 1

A resistive touchscreen panel is composed of several layers. The most important are two thin metallic electrically conductive and resistive layers separated by thin space. When some object touches this kind of touch panel, the layers are connected at a certain point; the panel then electrically acts similar to two voltage dividers with connected outputs. This causes a change in the electrical current which is registered as a touch event and sent to the controller for processing.

Answer 2

A capacitive touchscreen panel consists of an insulator such as glass, coated with a transparent conductor such as indium tin oxide (ITO). As the human body is also a conductor, touching the surface of the screen results in a distortion of the body's electrostatic field, measurable as a change in capacitance. Different technologies may be used to determine the location of the touch. The location is then sent to the controller for processing.

What_is_Capacitive_sensing_?">What is Capacitive sensing ?Capacitive sensing is a technology for detecting proximity, position, etc., based on capacitive coupling effects. Capacitive sensing as a human interface device (HID) technology, for example to replace the computer mouse, is becoming increasingly popular. Capacitive sensors can be recognized in many popular consumer products such as laptop trackpads, MP3 players, Computer Monitors and cell phones, but it is certainly not limited to these applications AdvantagesSince capacitive screens only respond to materials which are conductive (human finger used most commonly), they can be cleaned with cloths without accidental command input. The opposite is the case in resistive touch screens.

Capacitive touch screens are faster and more responsive than resistive touch screens.

Disadvantages

A standard stylus cannot be used for capacitive sensing, unless it is tipped with some form of conductive material, such as anti-static conductive foam.

Capacitive touchscreens are more expensive to manufacture and offer a lesser degree of accuracy than resistive touch screens.

Capacitive touchscreens cannot be used with gloves.

Power supplies with high electronic noise can reduce accuracy.

From Wikipedia, the free encyclopedia

Answer 3

A TFT Screen is a Thin Film Transistor screen ( AKA flat screens or LCD screens)

Answer 4

what is the difference between tft and lcd