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.
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
A TFT Screen is a Thin Film Transistor screen ( AKA flat screens or LCD screens)
what is the difference between tft and lcd
Types of touchscreen that are used in mobile and smartphones include TFT LCD, IPS-LCD, Resistive Touchscreen LCD, Capacitive Touchscreen LCD, and OLED.
Yes, the Samsung Sidekick is a smartphone which runs on Android 2.2 Froyo and has a 3.5-inch TFT touchscreen display.
TFT is Thin Film Transistor. It is also known as flat screen. There are TFT computers. There are also TFT TVs.
The LG Viewty featured a 3" TFT touchscreen and a 5 mega pixel rear camera. It has 100mb or memory, a micro SD slot and features support for Bluetooth and USB 2.0.
TFT
The main specs on the XDA EXEC phone include the following features: QWERTY keyboard, mini sim card, TFT resistive touchscreen with 65k colours, and a 1.3 MP camera.
full form of TFT - is Transient Fluorescent Lamp
full form of TFT - is Transient Fluorescent Lamp
Touchscreen dialing means that a virtual number pad appears on the screen of the smartphone, and you dial by touching the numbers on the screen.
"The Samsung Ace phone features 3G, TFT capacitive touchscreen, 5 MP camera, Wi-Fi, GPS, Bluetooth and much more. Try asking the employees of he mobile store for more information."
a tft display is a lcd display which is used in small thin applications i.e screens for mobile phones TFT stands for thin film transistor may be also called TFT LCD.
What does TFT mean in court sentencing