Difference between lcd and led monitor pdf
Difference Between LED & LCD (with Comparison Chart) - Circuit GlobeDisplay Technology in smartphones Traditional input devices for computer systems include keyboards and mice. In recent years, touchscreen technology has become widely used as a way to interact with computer systems, particular for mobile devices A touchscreen is an electronic visual display that a user can control by touching the screen with one or more fingers. A touchscreen allows for a much more direct interaction with what is displayed compared to a device like a mouse. Touchscreens have become very common on tablet computers, smart phones and other mobile devices. Increasingly, regular laptop and desktop computers use touchscreen displays so users can use both touch as well as more traditional ways of input. The idea of using a touchscreen goes back to the early days of computing in the s.
Comparison between CRT and LCD Monitors.pdf
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The liquid crystals are filled between the glass electrode and when the power is applied across it, the liquid crystal becomes energised and emits light. The LED using gallium arsenide and gallium phosphide which when heated emits visible light. The LED is used for showing the numeric and alphanumeric characters. On the other hand, the LCD has a thin layer of liquid crystal filamen t between the glass electrodes. When the power is applied across the electrodes they start emitting light energy in the form of photons.