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A look into dead pixels- 2007
by Vincent Alzieu
Published on May 22, 2007

Acer
The first manufacturer interviewed gave us the first responses. Attitudes sure have changes since two years ago, when it was unthinkable to ask about defect rates. We tried and hit a wall. Here, Acer’s answers are clear and concise:

1 – BeH : From how many dead pixels will you replace a LCD screen ? Does your exchange policy match the ISO 13406-II norm?


  • We take returns starting from 2 pixels in the middle or an overall total of 4 defective pixels – no distinction is made between a plain pixel (black or white) or colored sub-pixels (red, green, blue). This goes for all Acer screens up to 26 inches. We don’t have any 27”or 30” monitors.

    BeH note to readers: Acer says that it follows the ISO norm as well as applying its own policy. Actually, the more advantageous of the two is applied to the client’s situation.

    2 – BeH : What percentage of screens is affected by the problem of dead pixels according to you ?

  • Less than 1 % : This percentage corresponds to the total number of defects on our monitors (including power source problems, electronic, etc...).

    3 – BeH: Why not offer a standard zero dead pixels warranty?

  • We prefer to satisfy a larger number of buyers by offering a guarantee that goes further than the ISO 13406-II norm

    4 – BeH : How much would you evaluate the additional cost of a zero dead pixel policy to be ?

  • This is something we are studying at the moment.

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