Below details the LCD pixel criteria applied to the LG manufacturer warranty of LCD monitors and applies to all LG Electronics LCD monitors.
1. Definition of bright and dark sub-pixel
LCD Panel contains millions of sub-pixels in order to display full color images - See Picture1 below.
Picture 2 shows the symptoms that can be occur during the production stage of these LCD panels
1-1. Bright sub-pixel : The symptom appears as very small spots like red, green
or blue emitting light on the screen
1-2. Dark sub-pixel : The symptom appears as very small dark spots on the screen
2. LG Specification for bright and dark sub-pixel
LG Monitor LCD screen warranty is compliant to ISO 1306-2 - International Standard for LCD screen pixel quality.
Bright or dark sub-pixels can occur during the production stage of the LCD panel.
These anomlies do not affect the functionality of the screen with bright sub-pixels and dark sub-pixels not considered as a defect
up to one per 1 million sub-pixels respectively. Please see “Table 1” below for more details on this specification
Table 1 : Accepted number of bright and dark sub-pixels
