The 26th International Display Workshops (IDW '19)

講演情報

Oral Presentation

[LCT1] Evaluation Techniques

2019年11月27日(水) 13:40 〜 15:00 Room 107 (1F)

Chair: Masaru Inoue (Toyo Tech. LLC)
Co-Chair: Yoshinori Iwashita (DIC)

13:40 〜 14:00

[LCT1-1] DC Image Sticking in Liquid Crystal Displays Caused by Polyimide Anion Radicals

*Yasutomo Nagano1, Takanori Mori1 (1. JNC Petrochemical Corporation (Japan))

キーワード:Imide anion radical, DC image sticking, LCD reliability

We investigated the anion radical effect from aromatic imide groups in polyimide alignment layers of liquid crystal cells by means of electron spin resonance and absorption measurements. We found anion radicals generated by ultra-violet or blue light irradiation shows a clear correlation to DC image sticking.