The influences on LCD by irradiation with the YAG laser

Abstract

We have tried the analysis of the LCD cell irradiated with the YAG laser (1.06μm) to know what kinds of changes occur in it. In the present paper, We show that the PI film is decomposed and lower LC molecules are formed at the irradiated part in the LCD by the use of FT-IR microscope and microsampling MS. We have succeeded in the interpretation of the variations of a threshold value and an angle of tilting from an analytical point of view.