Analysis of Voltage-Holding-Capacity Drop around the Injection Corner of LCD Cell

Abstract

Model LCD cell closed with an acrylic resin were exposed to high temperature and high humidity test conditions.A remarkable voltage-holding-catpacity (VHC) drops have been observed around the injection corner of LCD cells by the exposure for a few hundred hours.The cause of VHC drops has been examined by microanalytical techniques like FT-IR-microspectroscopy and microsampling mass spectrometry. Carboxylic acid and amine have been detected from the interface between liquid crystal and polyimide alignment film around thte injection corner. The appearance of these chemical species will be discussed from the viewpoint of VHC drops.