A display device includes elongated display tubes each of which has a discharge
gas filled and a phosphor layer formed in the tube; a flexible sheet; a plurality
of electrodes; and an adhesive layer. Each of the tubes is flat elliptical in cross
section and has a plane section. The flexible sheet abuts against the plane sections
of the tubes to support the tubes. The plurality of electrodes are arranged on
the tubes abutting surface of the flexible sheet, for applying a voltage to the
tubes to generate discharges within the tubes. The adhesive layer is disposed on
the tubes abutting surface of the flexible sheet to bond the flexible sheet to
the plane sections of the tubes so that the electrodes of the flexible sheet face
the plane sections when the flexible sheet abuts against the plane sections of
the tubes.