TFT Technology, ISO 13406-2 Norm | Atlantis Land I-See S 150

3Substitution Terms for Lcd Monitor with warranty

This document indicates terms within Atlantis Land S.p.A. will substitute its Lcd monitors which might have defective pixels. For every kind of damages different from ones indicated in those pages, warranty conditions are written in the document “Atlantis Land Warranty – On Site”. Here following you will have:

A brief introduction to the TFT panels built technology;

ISO 13406-2 indicated defective limits;

Atlantis Land S.p.A. substitution condition terms.

3.1TFT Technology

The Liquid Crystal Panel of a monitor is built with a file and column matrix; their intersection point gives you a cell named PIXEL. It is possible to control every cell brightness just right orienting every built-in Liquid Crystal. In order to obtain different colours, three cells groups are used and they are given of different coloured filters (red, green and blue). The word PIXEL has now a different meaning from the original term, since the arrival of LCD Panels; it identicates the three coloured pixel union, each one is known as SUBPIXEL. This picture shows you what written untill now:

If we put a Memory Chip (which keeps the information until the arrival of a new one) in every cell, we can have an Active Matrix Display. This technology offers lots of advantages considering traditional Lcds (Passive Matrix):

Better Display Visual Angle

Superior Contrast and Brightness

Absence of monitor vibrations and monitor blur

3.2ISO 13406-2 NORM

It is very difficult to obtain panel without imperfections and with and enormous pixel quantities for the actual TFT building technology (Table 1). This defectiveness is strectly connected with the TFT technology nature. In order to protect End Users, the International Standard Organization wrote the ISO 13406-2 norm. All producers are obliged to clearly defin maximum number of detective pixels that can appear on a panel and their typology.

A05-15AM-C01_MX02

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