Patent ID: 7473519

Claim:
A method for manufacturing electrodes of a plasma display panel, comprising: providing a front transparent substrate; coating a black photosensitive paste film of negative-working type on the transparent substrate; coating a main photosensitive conductive paste film of negative-working type on the black photosensitive paste film, wherein the black photosensitive paste film and the main photosensitive conductive paste film both comprise a resin component; performing an exposure process using a collimated ultraviolet (UV) light for exposing the black photosensitive paste film and the main photosensitive conductive paste film to define a plurality of bus electrodes on the transparent substrate, wherein a first exposure energy acting on a plurality of main regions of the bus electrodes is greater than a second exposure energy acting on a plurality of edge regions of the bus electrodes; performing a development process to develop the exposed black photosensitive paste film and main photosensitive conductive paste film to form the bus electrodes, in which a first thickness of the edge regions of the bus electrodes is less than a second thickness of the main regions of the bus electrodes, and the developed black photosensitive paste film and the developed main photosensitive conductive paste film together form a trapezoid; and performing a firing process to fire the developed black photosensitive paste film and main photosensitive conductive paste film.