Abstract
The application of LCD has been very common. One important inspection item for
LCD manufacturers is screen flicker, and its optimization has become a crucial task. An
automated inspection system that aims to achieve such a goal is presented. It uses
photodetector to detect the degree of LCD screen flicker and converts the detected
result to digital signal by sampling circuit, acquires the degree of flickering by
signal analysis, and applies signal control method to adjust LCD's VCOM voltage which
optimize LCD flickering automatically to improve measurement efficiency and meet the
product requirements. This translates into an improvement in efficiency by 90%, and the
accuracy is also improved .
© 2016 IEEE
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