Study on the Surface Electric Resistance for Inner COnductive Film in CRT Funnel

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J. Korean Ceram. Soc. > Volume 35(11); 1998 > Article

Journal of the Korean Ceramic Society 1998;35(11): 1155.

브라운관 Funnel Glass 내면의 흑연피막의 표면전기저항에 관한 연구

김상문, 김태옥, 신학기¹

부산대학교 공과대학 무기재료공학과
¹경남정보대학 공업화학과

Study on the Surface Electric Resistance for Inner COnductive Film in CRT Funnel

ABSTRACT

We have studyed the surface electric resistiance for inner conductive film consisted of graphite and iron oxide by coating the conductive paint on inner face of 28" wide CRT funnel and have evaluated the working properties of 28" wide CRT according to the surface electric resistiance. We found that the viscosity of paint and the thickness of conductive film became the higher but the surface electric resistiance of con-ductive films was the lower than before in accordance with the increase of solid contents in conductive paint and that the surface condition and the surface electric resistiance of conductive films changed highly ac-cording to the drying conditions also. From these results we could get the uniform thickness and the un-iform film resistance and the optimum working property of selectric propertise in CRT when we used the conductive paint with solid contents 28% and viscosity about 13cps

Key words: Inner conductive film, Graphite, Iron oxide, Coating, CRT