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Read moreThe tried and trusted TFT is the display of choice for most industrial designs, but it does have its limitations in viewability and colour vibrancy. But what about the relatively new technology, IPS (in plane switching) which has turned the TFT into a super-TFT? What are the benefits and drawbacks of each?
In-Plane Switching (IPS) is a technology that overcomes the viewing limitations of conventional TFT-LCDs. It is also known as Super TFT.
IPS derives its name from the fact that the liquid-crystal molecules are aligned in parallel with the glass plates, whereas the TN principle adopted in conventional TFT displays is based on perpendicular alignment of the molecules. In an IPS display, the crystals remain oriented in parallel whether the pixel is turned on or off.
Electrodes are placed on the same sheet of glass, instead of on opposing sides, so that when the signal is applied, the crystals rotate horizontally in the same plane.
A TFT display is a form of Liquid Crystal Display with thin film transistors for controlling the image formation. The TFT technology works by controlling brightness in red, green and blue sub-pixels through transistors for each pixel on the screen. The pixels themselves do not produce light; instead, the screen uses a backlight for illumination. Discover our TFT Products
Benefits of using an IPS-TFT display:
Negatives of using an IPS-TFT display:
Benefits of a TFT:
Negatives of using a TFT display:
IPS-TFT | TFT-LCD | ||
---|---|---|---|
+ | - | + | - |
High contrast and true background | Display sizes more limited | Efficient manufacturing processes and high yields | Contrast can be limited |
Better sunlight readability | Lower response time | Very competitive prices | Colour inversion at extreme viewing angles |
Accurate colour reproduction | Higher power consumption | Wide range of sizes available | Display not completely black when switched off |
Contrast and colour are more consistent over a wide viewing angle | Higher cost | Cut down options available | |
Optimum visibility |
Display choice really does depend on your application, end user and environment. It may be a higher-grade IPS is needed to satisfy outdoor requirements, or a lower cost standard TFT display is sufficient. Before you make your choice, why speak with us and we will be happy to talk you through your options.