Tft Monitor
-
Upload
ait -
Category
Technology
-
view
1.671 -
download
6
description
Transcript of Tft Monitor
Thin film transistor
Introduction
A TFT monitor uses thin-film transistor technology for the ultimate LCD display.
It replaces the old style cathode ray tubes (CRTs).
Semiconductor
The first TFT for LCD was made of Cd-Se semiconductor thin films, Though it has a better performance, its commercialization is still not success.
TFTs can be formed by three different silicons, they are: crystalline silicon, poly-silicon and amorphous silicon.
Mechanism
Types
P-channel TFT: switched ON- ‘-’voltage on the gate,switched OFF- ‘+’ voltage on the gate. N-channel TFTswitched ON- ‘+’voltage on the gate,switched OFF- ‘-’ voltage on the gate.
Benefits
• Less current compared to CRT.
• This allows for very fast re-drawing of the display, as the image is re-painted or refreshed several times per second
Thank you