past few months, the display market is being invaded by new technologies that are replacing traditional TV screens appeared back in 1922.
We've all heard of TFT, LCD, Plasma and OLED, and even combinations of them, such as TFT LCD, and many more without knowing how they differ from each other. With this guide we explain the advantages and disadvantages of these technologies and clarify concepts.
TFT: First we must clarify that it is a TFT display technology in itself but is simply a special type of transistors that achieves better image quality. More frequent use with LCD screens, as explained below.
LCD and TFT LCD: LCD technology uses molecules liquid crystal sandwiched between layers that polarize and rotate as you want to display one color or another. Its main advantage, besides its small size, is saving energy. When these displays use transistors then we are talking TFT TFT LCDs, which are the most widespread today.
PLASMA: Unlike LCDs, plasma displays use phosphors excited noble gases to display pixels and provide them with color. Although invented in 1964 is more backward technology, in terms of level of implementation, of the 3 we have mentioned because its price is higher (although the difference is increasingly less) and yet their quality is much better. Specifically provides greater viewing angle LCD screen, better contrast and more realism from the colors displayed.
OLED: Finally, this technology also has a few years and we will also gradually seeing more consistently. It is a variant of the classic LED, but where the emission layer has an organic component. You've probably heard that OLED displays have the advantage of requiring no backlight, thus saving much more energy than any alternative. Moreover, its cost is also lower. However, its usage time is not as good as older technologies that we have commented.
