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IPS

In Plane Switching is an LCD Technology was developed to improve on poor viewing angles and colour reproduction of TN technology. IPS employs pairs of electrodes at the sides of each cell, running the electric field horizontally through the material. This approach keeps liquid crystals parallel to the front of the panel, increasing viewing angle. The downside to this technology was that response time suffered and it was very expensive. Super-IPS was later introduced with improved response times and colour reproduction.

Interlace

A single image displayed on TV or a computer monitor is essentially a frame divided into horizontal scan lines. The way the frame is scanned can either be interlaced or progressive. All current analog TV systems are interlaced which means that alternate rows of each frame are displayed, followed by the remaining rows. Each half of the frame is called a field so field one will display lines 1, 3, 5 and so on and then field two will display lines 2, 4, 6 and so on. The two fields are displayed quickly enough so that the human eye is tricked into seeing only one image.