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What is TFT Display in Mobile Phones?
TFT stands for thin-film transistor. This is the technology for the ultimate LCD display. LCD monitors, also called flat panel displays, are replacing the old style cathode ray tubes (CRTs) as the displays of choice. Nearly all LCD monitors today, including mobile phones, use TFT technology.
How many transistors would you find in a modern laptop?
A laptop today in mid-2015 typically has about 200 billion transistors in it - this includes the TFT LCD screen, CPU, RAM (memory) and many ASIC and controller chips. To put this in perspective, if today's laptop were made with the 1950s ENIAC vacuum tube ('valve') technology, it would require a space of more than 8.8 billion square feet (94,280 feet on a side. That's 17.8 miles on a side - or 28.5 km per side). This could not be done. A 17 x 17 mile square electronic device built using vacuum tube technology would require more electrical power than all the electrical power plants in the United States could produce, to run it. This estimate is based on the fact that the ENIAC computer had about 18,000 vacuum tubes and required 800 square feet of floor space. Now one can see why we are truly living in a paradigm shift; why there's now serious talk about transhumanism and enhanced, immortal man-machine hybrid beings. (The United States is used as an example because that is where the ENIAC computer was designed, built and operated.)
