Difference Between TFT and LCD (With Table)

LCD stands for liquid crystal displays, which were basically created so as to provide an alternative for big and bulky CRT display screens. LCDs were efficient when it came to energy and were very thin and light too. The problem with LCDs was that though they were very light and energy-efficient, they were too inferior for the CRT display screen.

 So after some research and a number of studies, TFT that is a thin film transistor was the solution to their problems. The best part about TFT displays is that the elements of TFT are deposited directly to the glass substrate rather than the traditional solution of producing silicon transistors.

TFT vs LCD

The difference between TFT and LCD is that TFT is a part or can say a variant of LCD that is used to improve the quality of the image on the screen while LCD is a whole class of a number of displays that uses liquid crystal property to form what it is, which actually does not emit the light directly.

TFT is abbreviated for the thin-film transistor. It is basically used for the flat planes in order to get high-quality liquid crystal displays that are the LCDs. All of this gives the electric current that is illuminating the display access to be turned on and off at a very faster rate. The LCDs that are using the TFT service are called active-matrix now.

LCD stands for liquid crystal displays, which were basically created so as to provide an alternative for big and bulky CRT display screens. LCDs were efficient when it came to energy and were very thin and light too. After this, they lead a big leap while they left the tech world as they lead to the entry of a light-emitting diode that is LED. Although, LCDs still consume much less power than LED and other gas displays.

Comparison Table Between TFT and LCD

Parameters of comparisonTFTLCD
What is it?TFT is one of the many methods that are now used to create LCDs.LCD is a class of different displays that are used to create images with the help of transistors.
ProcessTFT displays the elements of TFT are deposited directly to the glass substrate rather than the traditional solution of producing silicon transistors.LCD does not have such a process.
DisplaysThe TFT-produced displays are much better and are not prone to any crosstalk.Displays made with LCDs are prone to crosstalk and do not have good quality.
Amount of chargeTFT requires a very less amount of charge to get activated.LCD being traditional, require much more amount of charge.
ProductionAll the LCDs produced are made with the TFT process.The previous methods are not used by LCDs for their production now.

What is TFT?

TFT is abbreviated for the thin-film transistor. It is basically used for flat planes in order to get high-quality liquid crystal displays that are LCDs. All of this gives the electric current that is illuminating the display access to be turned on and off at a very faster rate. The LCDs that are using the TFT service are called active-matrix now.

After some research and a number of studies, TFT that is a thin film transistor was the solution to their problems. The best part about TFT displays is that the elements of TFT are deposited directly to the glass substrate rather than the traditional solution of producing silicon transistors.

What is LCD?

LCD stands for liquid crystal displays, which were basically created so as to provide an alternative for big and bulky CRT display screens. LCDs were efficient when it came to energy and were very thin and light too. After this, they lead a big leap while they left the tech world as they lead to the entry of a light-emitting diode that is LED. Although, LCDs still consume much less power than LED and other gas displays.

LEDs, though, have a very common and mostly used set of systems as it literally is used anywhere, like in smartphones, computers, laptops, and other instrumental places. Earlier, as LCDs replaced other traditional forms of technologies, now LCDs too are being replaced by OLEDs.

Main Differences Between TFT and LCD

  1. TFT is one of the many methods that are now used to create the LCDs, while LCD is a class of different displays that are used to create images with the help of transistors.
  2. TFT displays the elements of TFT are deposited directly to the glass substrate rather than the traditional solution of producing silicon transistors, but LCD does not have such a process.
  3. The TFT-produced displays are much better and are not prone to any crosstalk, while displays made with LCDs are prone to crosstalk and do not have good quality.
  4. TFT requires a very less amount of charge to get activated but LCD being traditional, requires a much more amount of charge.
  5. All the LCDs produced are made with the TFT process, but the previous methods are not used by LCDs for their production now.

Conclusion

It is now concluded that the new method thus created was required with some immediate improvements, and the introduction of TFT, it made it much easier as it removed the vulnerability of devices to crosstalk. The screen in the LCD systems used to have a very high time for the responses, but it was not able to produce the faster motion that was required.

TFT displays the elements of TFT are deposited directly to the glass substrate rather than the traditional solution of producing silicon transistors. In the case of LCDs, earlier, as it replaced other traditional forms of technologies, now LCDs too are being replaced by OLEDs.

References

  1. https://dl.acm.org/doi/abs/10.1145/566408.566440
  2. https://ieeexplore.ieee.org/abstract/document/4066878/
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