The present invention provides a method for forming a black electrode by
performing sintering at a temperature in the range of 500-600.degree. C.
after applying a lead-free black conductive composition to a substrate.
The aforementioned black electrode comprises a binder comprising a
crystallized glass component. The aforementioned black conductive
composition comprises conductive particles of black RuO.sub.2, lead-free
black ruthenium-based polyoxide, and mixtures thereof in an amount of
4-30 wt %, based on the total weight of the composition, a lead-free
non-conductive black oxide in an amount of 0-30 wt %, based on the total
weight of the composition, and a lead-free bismuth-based glass binder in
an amount of 10-50 wt %, based on the total weight of the composition.