Full color surface discharge type plasma display device

A process for manufacturing a surface discharge type plasma display device producing a color display and comprising first and second substrates having corresponding main surfaces in facing and parallel, spaced relationship and defining a discharge space therebetween in which a discharge gas is filled and selectively discharged for producing a display in a display area of first and second dimensions in respective first add second orthogonal directions, a plurality of pairs of lines of display electrodes formed on the main surface of the first substrate and extending in parallel relationship in the first direction, a plurality of address electrodes formed on the main surface of the second substrate and extending in parallel relationship in the second direction and spaced in the first direction and a plurality of phosphor layers emitting respective and different, primary luminescent colors and formed as respective, plural and parallel stripes extending in the second direction respectively in association with and covering the plurality of address electrodes and arranged in plural, successive sets of stripes spaced in the first direction, each set including a common arrangement of successive stripes of the respective, different primary colors, said process comprising the steps of:

• forming barriers on the main surface of the second substrate, extending in parallel in the second direction and spaced in the first direction, thereby dividing and separating said discharge space into elongated discharge spaces between respective pairs of adjacent barriers, each discharge space being uninterrupted for at least the first dimension and corresponding to a respective address electrode and associated phosphor layer stripe;
• almost filling said elongated discharge spaces, between said barriers and above the main surface of said second substrate, with respective phosphor pastes corresponding to the respective luminescent colors of the associated phosphor layer stripes;
• firing said phosphor pastes to reduce the volume of said phosphor paste within each respective elongated discharge space and to form each said phosphor layer stripe covering substantially the entire surfaces of the side walls of said respective pair of adjacent barriers, the surface of said second substrate and the associated address electrode disposed between said respective pair of adjacent barriers.

A process for manufacturing a substrate assembly for a surface discharge type plasma display panel producing a color display, employing an insulating plate having a main surface and first and second different directions defined thereon, the process comprising the steps of:

• (a) using a printing mask, printing the material for forming plural address electrodes on the main surface of the insulating plate, extending in parallel relationship in the first direction and spaced so as to define corresponding gaps therebetween in the second direction;
• (b) using the printing mask employed in step (a), printing plural barriers on the main surface of the insulating plate, extending in the first direction, parallel to the plural address electrodes and disposed respectively in the gaps between the plural address electrodes and correspondingly spaced in the second direction, each pair of adjacent barriers defining therebetween a corresponding, elongated cavity and having a respective address electrode therebetween, the plural elongated cavities being of a substantially common length in the first direction corresponding to a first dimension of the display area in the first direction and each being uninterrupted throughout the length thereof;
• and
• (c) for a first primary color, of plural primary colors of the color display and using a printing mask having elongated openings therein corresponding to a selected set of the plural elongated cavities designated to have formed therein respective color phosphor layer stripes commonly of the first primary color, positioning the mask with the elongated openings therein aligned with the cavities of the designated set and forcing a respective, primary color phosphor material through the elongated openings of the mask and into, and substantially filling each of, the corresponding, plural elongated cavities of the selected set;
• and
• (d) repeating step (c) for each further and different primary color of the plural primary colors, in individual succession.

A process for manufacturing a substrate assembly for a surface discharge type plasma display panel producing a color display, the panel employing an insulating plate having a main surface and first and second different directions defined thereon, the process comprising the steps of:

• (a) forming plural address electrodes on the main surface of the insulating plate, extending in parallel relationship in the first direction and spaced so as to define corresponding gaps therebetween in the second direction;
• (b) forming plural barriers on the main surface of the insulating plate, extending in the first direction, parallel to the plural address electrodes and disposed respectively in the gaps between the plural address electrodes and correspondingly spaced in the second direction, respective side wall surfaces of each pair of adjacent barriers defining therebetween a corresponding, elongated cavity and the plural elongated cavities defined by plural pairs of adjacent barriers, of the plural barriers, being of a substantially common length in the first direction, corresponding to a first dimension of the display area in the first direction, and each being uninterrupted throughout the length thereof;
• (c) almost filling said plural elongated cavities, between said pairs of adjacent barriers and above the main surface, with respective phosphor pastes selected from plural phosphor pastes corresponding to plural primary colors of the color display;
• and
• (d) firing said phosphor pastes to reduce the volume of said phosphor paste within each elongated cavity and form a corresponding phosphor layer stripe in the elongated cavity covering, substantially, the entire sidewall surfaces of said respective pair of adjacent barriers.