| 摘要 |
A plasma cell constituting a display device includes a pair of substrates, bonded to each other with a pre-set gap in-between for defining a hermetically sealed space in-between, an ionizable gas charged into the space and discharge electrodes formed on at least one of the substrates for ionizing the gas for producing electrical discharge in the space. The discharge electrodes are overcoated by a film-shaped substance formed by an electro-deposition method. This substance has resistance against sputtering for protecting the discharge electrodes against impacts by the ionized gas and secondary electron emitting characteristics enabling electrical discharge. The substance is selected from the group of borides, carbides, oxides, nitrides, metals and metalloids., and has sufficient resistance against sputtering to eliminate or suppress the amount of mercury used.
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