PHOTO-ALIGNMENT FILM REWORKING METHOD AND MANUFACTURING METHOD OF LIQUID CRYSTAL DISPLAY INCLUDING THE SAME
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United States of America Patent
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Feb 23, 2017
app pub date -
Feb 8, 2016
filing date -
Aug 20, 2015
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Abstract
A method of reworking a photo-alignment film for use in a liquid crystal display (LCD) includes, providing a substrate on which a photo-alignment film including a photo-reactive group is formed by irradiation of a first light polarized in a first direction, the photo-reactive group including cyclobutane dianhydride (CBDA) or a CBDA derivative and diamine; irradiating a second light polarized in a second direction, which is different from the first direction, onto the photo-alignment film; and treating the photo-alignment film with a splitting solution.
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