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J. Korean Ceram. Soc. > Volume 40(2); 2003 > Article
Journal of the Korean Ceramic Society 2003;40(2): 113.
doi: https://doi.org/10.4191/kcers.2003.40.2.113
The Effects of the Electron Reflecting Layer Screen-printed with the Lead Tungsten Oxides on the Shadow Mask in CRT
Sang-Mun Kim
LG. Philips Displays Inc.
ABSTRACT
To reduce the doming of the shadow mask due to thermal expansion and to prevent the color discrepancy, the electron reflecting layer with lead tungsten oxides on the electron gun side of shadow mask was formed by screen printing method and doming property was evaluated in CRT. First, the lead tungsten oxides were prepared by calcining the mixture of lead oxide and tungsten oxide above 600$^{circ}C$. Second, the paste which has the anti-doming composition including the lead tungsten oxides was coated by screen-printing method. As a result, the doming of the shadow mask was reduced about from 30 to 45%.
Key words: Doming, Mislanding, Shadow mask, Electron reflecting layer, Lead tungsten oxide, Screen-printing
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