Adjusting process for the light density of a panel back light for LCD displays and flat screens uses a sensor test images and a back light control

摘要

An adjusting process for the light density of a panel (4) back light (3) comprises determining the light density on preparable test images on the panel at times (t1) and then at a following time and adjusting the density by incorporating the determinations. An independent claim is also included for an arrangement to operate the above process.