TFT Displays
The abbreviation TFT LCD display actually stands for a thin film transistor liquid crystal display.

The internal construction of a TFT display consists of glass that has a semiconducting material along the top for functionality. Every pixel inside the TFT display utilizes an individual transistor on top of the liquid crystal material.

Liquid cry...
The abbreviation TFT LCD display actually stands for a thin film transistor liquid crystal display.

The internal construction of a TFT display consists of glass that has a semiconducting material along the top for functionality. Every pixel inside the TFT display utilizes an individual transistor on top of the liquid crystal material.

Liquid crystal gets its name because it is similar to liquid since it can change quickly to display different images and the crystal comes from its ability to stay in the newly arranged position. The transistor then applies a low amount of voltage to the pixel to determine each pixel's intensity and color. These pixels all blend together to create the images for pictures and video.

The TFT display may also be known as an active-matrix LCD in some settings. While TFT isn't the only active-matrix LCD technology, it is very popular and why you may notice that people use the term TFT instead of active-matrix when describing a display. The TFT is not the only component that creates the active-matrix LCD. The term active-matrix actually stems from the ability of the display to control each pixel individually and switch them over quickly as needed.

Passive-matrix LCDs vary from active-matrix LCDs. The TFT display is defined by a high contrast, fast response time and a high refresh rate. On the other hand, a passive-matrix LCD is found in much smaller displays such as a digital wristwatch or calculator screen. These do not require the full colours that active-matrix LCDs provide in computer screens, televisions and mobile phones.  

Two types of thin film transistor technologies are commonly found and used with TFT displays. The first and most common is the twisted nematic, which is also known as a TN display. Its primary selling point is a very fast response time. They may appear low quality at awkward angles or when reproducing certain colours. The other type is IPS or in-plane switching. It has better colours and viewing angles, but has slower refresh rates as a tradeoff.
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