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Twisted Nematic liquid crystal display technology

Views: 232     Author: Wendy     Publish Time: 2023-08-09      Origin: Site


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Twisted Nematic liquid crystal display technology

A breakthrough in display technology, the emergence of TN LCDs in the 1970s aided in the commercialization of LCDs in electronic devices.

The Process

Nematic liquid crystal is used in TN display technology and is positioned in the middle of glass substrates that have been ITO (indium-tin-oxide) dusted.In turn, layers that rub in one direction are applied to the ITO.

The fundamental idea behind TN display technology is polarized light manipulation. There is a twist in the polarization state with the liquid crystal director as light reaches the TN cell.

The benefits of twisted nemamic LCD technology

In the 1990s, TN LCD technology was used for portable devices due to the benefits of employing TN panels.

It's affordable

It is simple to use TN liquid display crystal technology. This translates into low-cost manufacturing needs for businesses and a cost-effective final product for consumers. Due to this, TN LCD is now a viable alternative to CRT and LED technologies. Additionally, it is more affordable than more recent technology like AMOLED and IPS.

Efficiency of Power Consumption

No existing need is necessary for TN technology to operate. Low voltages are used to run it. Batteries and other low power sources can be used to power it for this.

Possesses a quick response time and good refresh rate

The amount of time needed for a pixel to transition from one state to another is known as the response time of a pixel. Milliseconds serve as the measurement unit. Better still if it's smaller. The frequency at which a picture on a display is refreshed is known as the refresh rate. In Hertz, it is measured. Twisted Nematic LCD technology has the capacity to display quicker images in a short amount of time due to its improved refresh rate and pixel response time.

The fact that TN LCD technology is not widely used in contemporary applications may be due to its drawbacks.

1.Wrong Viewing Angle

Low viewing angle is a drawback of TN LCD technology. For a decent visual experience and performance, a user must look up at a 90-degree angle. Lower angle range views typically have duller colors and darker pictures.

2.Poor color reproduction

Utilizing TN screens results in subpar color reproduction, in contrast to LCDs' IPS and VA panels. This drawback of TN LCD could be a result of the limited viewing angle. The inaccurate color output from the TN panels is a result of the poor color reproduction. Because of this, TN LCD is not appropriate for image-focused tasks like graphic design, video editing, and photo editing.

3. No Constant Quality

The quality of Twisted Nematic LCD panels from various manufacturers varies. When a low-quality product is used, the other drawbacks, such as color implementation and viewing angle, will be more obvious in the output of the implementation.Another drawback of TN panels that are less expensive and of lower quality is their susceptibility to dead pixels.




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