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Display – Performance Materials
In IPS technology, the liquid crystals are arranged horizontally, i.e. parallel to the glass plates. When voltage is applied, they rotate by 90° on the same level.

IPS Technology for LC Displays

In contrast to TN displays, in IPS (in-plane switching) technology, the electrodes whose electrical fields are used to switch the LC molecules are only found on one of the two substrates in the form of strip electrodes. The result: the electrical field is inhomogeneous and aligned parallel to the substrate surface in the first approximation. The molecules are switched accordingly in the substrate – in-plane. This creates much lower viewing angle dependence than in TN and VA displays. The improved viewing angle dependence, achieved without additional compensation film, is a key advantage of IPS technology, making it very attractive for many applications. A further feature of the IPS cell is the unique arrangement of electrodes and orientation layers.

Our LCD Explorer visually demonstrates how an IPS display works.