Abstract
The effect of liquid binder on the film properties of screen-printed MgO film for the protective layer for AC-PDP has been studied. The liquid binder is a stabilized magnesium diethoxide solution which changes to MgO after firing and binds the MgO particles. After drying, the MgO film thickness increases with increasing MgO liquid binder content. However, after firing, the MgO film thickness decreases with increasing MgO liquid binder content, because the MgO powder content decreases with increasing liquid binder content. When liquid binder content is less than 10 wt%, surface roughness of the MgO film increases and film density decreases with increasing liquid binder content. This is caused by a gas generated by the liquid binder. When liquid binder content is more than 10 wt%, the surface roughness of the MgO film decreases and film density increases with increasing liquid binder content. This is caused by the liquid binder combining powders. Therefore, it is concluded that the optimization of liquid binder content is very important for improving film properties.
