The relationship of adhesive properties of optical film to uniformity of TN-mode LCD

Abstract

Owing to its outstanding features (low power consumption, small thickness and light weight), LCD is becoming a prevalent display device. The improvement of optical materials is one of the most important factors that will continue to influence the progress of the LCD trend. One important issue for TN-mode LCDs is their uniformity is decreased due to light leakage caused by heating tests. This phenomenon, which is caused by shrinkage of a polarizing film, is called mura. We showed that the physical properties of the adhesive used had a great influence on mura. We found that the strain generated in the polarizing film was changed by the physical properties of its adhesive, and thereby the appearance of mura was changed.