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Defective or stuck pixels

What is the Acer policy on defective or stuck pixel on my LCD display?

LCD Display Pixel Introduction

LCD displays are made up of a set number of pixels and each pixel is made from 3 sub-pixels - one Red, one Blue and one Green. Each sub-pixel has its own transistor, which makes manufacturing the glass substrate very complex.

Due to the nature of the manufacturing process, occasional defects can occur. Pixel defects or failures cannot be fixed or repaired and can happen at any stage in the LCD panel life. To regulate the acceptability of defects and to protect the end user, ISO have created a standard for manufacturers to follow. ISO 13406-2 recommends how many defaults are acceptable in a display before it should be replaced, within the terms & conditions of warranty. All reputable manufacturers conform to and support the ISO 13406-2 standard.

There are two types of pixel defects covered under ISO 13406-2:

  • Bright Sub-Pixel: A sub-pixel is displayed as a small white dot on a black pattern.
  • Dark Sub-Pixel: A sub-pixel is displayed as a small black dot on a white pattern.

Dead Pixel Warranty Policy

The table below shows the allowable number of dead sub-pixels for the native resolution of the LCD panel. Your display can be replaced during the duration of the limited warranty period if the number of dead pixels is greater than the allowable number.

General policy:

Native Resolution Bright Sub-Pixel Dark Sub-Pixel
SXGA 1280*1024 ≤ 2 ≤ 5
HD 1366*768 ≤ 2 ≤ 5
HD+ 1600*900 ≤ 2 ≤ 5
FHD 1920*1080 ≤ 2 ≤ 5
WUXGA 1920*1200 ≤ 2 ≤ 5
WFHD 2560*1080 ≤ 2 ≤ 5
QHD 2560*1440 ≤ 2 ≤ 5
WQHD 3440*1440 ≤ 2 ≤ 5
WQHD+ 3840*1600 ≤ 2 ≤ 5
UHD 3840*2160 ≤ 2 ≤ 5

Premium Model Policy:

Professional Monitor Bright Sub-Pixel Dark Sub-Pixel Total Sub-Pixel
BM Series 0 ≤ 5 ≤ 5

1. A sub-pixel, less than or equal to 0.5 of a sub-pixel, is excluded from the warranty.
2. Warranty duration and product specification may vary from different regions. Please contact local distributors/dealers for further information.

If you are in warranty and feel your display has stuck or defective pixels, please contact Acer support.