The most popular display technology - the TFT - plays an important role in our product range. We not only offer TFT displays in a wide variety of technologies, formats, sizes and requirement profiles, but also provide solutions for the industrial market and special segments such as PID and medical applications.
For us, TFT technology and its further development has always been one of our core competences. As a leading partner for industrial TFT displays, we are continuously expanding our extensive portfolio and can thus refer to a wide range of sizes, formats and resolutions of all common display manufacturers. For applications with special requirements, such as challenging environmental conditions or displays in medical use, we can also provide special TFT displays.
Whether for indoor or outdoor use, from monochrome to full colour and from low cost to high end - we always find the right display solution!
TFT displays are equipped with a backlight (LEDs) that illuminates a layer of liquid crystals. These are connected to so-called thin-film transistors, which control the alignment of the liquid crystals using electrical energy.
Depending on the pixel technology, the electrodes are either arranged opposite each other (with twisted nematic (TN) and vertical alignment (VA)) or in one plane (with in-plane switching (IPS)).
Key differences:
Technology | viewing angle | contrast | response time |
---|---|---|---|
TN | limited | high | very fast |
VA | very good | excellent | fast |
IPS | excellent | very high | fast |
Twisted Nematic (TN) panels are a rather inexpensive display technology in which each pixel consists of rod-shaped liquid crystals that are aligned horizontally to the image layer and allow light from the backlight to pass through. When a voltage is applied to the pixels, the orientation of the liquid crystals changes. The higher the voltage, the more perpendicular the rods are to the image layer, preventing the light from the backlight from "shining through". TN displays can be used, for example, in cash registers or kiosk systems where the user usually looks at the display from the front and for this reason an extended viewing angle from all directions is not required.
With Vertical Alignment (VA) technology, the rod-shaped liquid crystals are initially arranged perpendicular to the image layer and allow the light from the backlight to pass through without restriction. When a voltage is applied to the pixels, the rods "tilt" and align horizontally to the image layer. The stronger the voltage applied, the more horizontally the rods arrange themselves, blocking the light from the backlight. VA panels are characterised by very high contrast values, excellent colour stability and a wide viewing angle from all directions.
In-plane switching (IPS) technology means that the electrodes in the panel are arranged on one layer. When a voltage is applied, the liquid crystals arrange themselves horizontally to the image layer. IPS panels offer brilliant colours, high contrast values and a wide viewing angle from all directions. For this reason, they are often used for mobile applications such as smartphones and tablets and wherever high image stability is required. IPS technology is the state-of-the-art technology among TFTs today.
275 Marcus Blvd
Unit R
Hauppauge, NY 11788
United States
For any questions, please feel free to contact us.
Please fill in the form and hit submit. If desired, we will get in touch with you within the next few days. Your contact data will be kept confidential.