A method and system for compensating stressed pixels on a light-emitting
diode (LED) based display device is disclosed. After receiving a video
data input for displaying a video image frame at a first frequency, one
or more pixels in the video image frame are detected as stressed pixels.
Based on the information for the stressed pixels, a primary sub-frame is
displayed, the primary sub-frame having one or more stressed pixels with
at least one of whose display parameters being degraded due to an
accumulative usage of the LED display device. At least one secondary
sub-frame is then displayed having the detected stressed pixels thereon
with the degraded display parameter compensated. The primary and
secondary sub-frames are displayed sequentially at a second frequency so
that the separation of these two sub-frames is undetected by a viewer.