A gas discharge display panel has front and rear plates. The plates are spaced apart from each other, thereby forming a chamber in which a discharge gas is contained. Also, both the front and rear plates are dark in color. Preferably, both the front and rear plates have a darkness of about 20% or more...http://www.google.fr/patents/US6335591?utm_source=gb-gplus-shareBrevet US6335591 - Luminescence display panel using discharge gas