Proceedings of the Korean Institute of Electrical and Electronic Material Engineers Conference (한국전기전자재료학회:학술대회논문집)
- 2007.11a
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- Pages.433-433
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- 2007
Study on Mechanism and Electro-Optical Characteristics of Liquid Crystal Alignment Employing ZnO:Al Electrode
- Kim, Mi-Jung (Yonsei University) ;
- Oh, Byeong-Yun (Yonsei University) ;
- Kim, Byoung-Yong (Yonsei University) ;
- Kang, Dong-Hun (Yonsei University) ;
- Park, Hong-Gyu (Yonsei University) ;
- Lee, Kang-Min (Yonsei University) ;
- Moon, Hyun-Chan (KETI(Korea Electronic Technology Institute)) ;
- Seo, Dae-Shik (Yonsei University)
- Published : 2007.11.01
Abstract
In this paper, we investigated the feasibility of applying ZnO:Al films to display devices as transparent electrodes, and reported the electro-optical (EO) characteristics of VA cells using ZnO:Al electrodes and compared them with those of VA cells using ITO electrodes. The experiment results show that a uniform vertical LC alignment and a large pretilt angle were achieved. Also, the good voltage-transmittance curve, response time, and capacitance-voltage characteristics were observed for the rubbing aligned VA-LCD using ZnO:Al electrodes m comparison with ITO electrodes. In other words, the vertical alignment mode based on the ZnO:Al electrodes showed appropriate electro-optical characteristics and high transparency in comparison with that based on the ITO electrodes. These results indicated that the transparent ZnO:Al electrodes of the liquid crystal displays could substitute the ITO electrodes.