Planar discharge display device

Abstract

The present invention is to provide a planar discharge display device including projection-like structure members (8) respectively formed on spaces between a plurality of unit discharge display portions and unit discharge display portions adjoining to the respective unit discharge display portions of one and the other of a rear glass substrate (1) and a front glass substrate (12), recesses (11) engaged with the projection-like structure members (8) and glass frits (14), (13) respectively interposed on the surrounding portions of the rear glass substrate (1) and the front glass substrate (12) and between the respective projection-like structure members (8) and the recesses (11) engaged with the projection-like structure members (8) in which the rear glass substrate (1) and the front glass substrate (12) are joined with pressure under the condition in which the glass frits (14), (13) are being heated to thereby form a vacuum flat tube-assembly into which a discharge gas is filled. According to this planar discharge display device, there can be removed a risk in which the space between the rear glass substrate (1) and the front glass substrate (12) will cause erroneous discharge to occur to generate crosstalk or a risk in which adhesion failure will be caused by uneven thickness of the glass frit (13). Moreover, since the amount of the glass frit coated on the surrounding portions of the rear glass substrate (1) and the front glass substrate (12) is decreased, a large number of unit discharge display portions can be integrated to the extent that spacers among a plurality of unit discharge display portions may become inconspicuous. In addition, owing to the existence of a plurality of projection-like structure members (8) and a plurality of recesses (11) which are engaged with these projection-like structure members, there can be obtained the planar discharge display device in which misalignment between the rear glass substrate (1) and the front glass substrate (12) in the plane direction can be avoided.

Dependencies are inferred from the claim text.