Process for the production of plasma displays with distributed getter material and displays thus obtained
AssigneeSaes Getters S.P.A.
InventorsGiorgio Longoni, Corrado Carretti, Stefano Tominetti
Life of this patent
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Abstract
A manufacturing process for the production of plasma display panels is provided which allows obtaining in a simple way displays in which getter materials deposits are present in contact with the atmosphere present in channels or cells of the display. The process includes a step of forming the getter material deposits on a free surface of the magnesium oxide layer at positions essentially corresponding to contact areas between the front glass panel and the barriers on the rear glass panel of the display panel.
Claims17
A process for manufacturing a plasma display panel (80;
- 90) comprising the following steps:
- manufacturing a front glass panel (FP) of a plasma display panel comprising pairs of supporting electrodes (E1) and scanning electrodes (E2), a layer of dielectric material (DF) for protection of the electrodes and a layer (M) of magnesium oxide covering the layer of dielectric material;
- manufacturing a rear glass panel (RP) of a plasma display panel comprising barriers (R) defining channels (C) or cells in a finished display, address electrodes (AE) and phosphors (PR;
- PG;
- PB);
- forming getter material deposits (63, 63′, . . . ;
- 72, 72′, . . . ;
- 81, 81′, . . . ;
- 91, 91′, . . . , 92, 92′, . . . ) on a free surface of the magnesium oxide layer at positions which will essentially correspond to contact areas between the front glass panel and the barriers on the rear glass panel when the panels are placed together;
- and subsequently
- placing the front and rear glass panels together and sealing along the outer perimeter of the front and rear glass panels, thus defining a closed space or a plurality of closed spaces inside the display panel.
A process for manufacturing a plasma display panel (80;
- 90) comprising the following steps:
- manufacturing a front glass panel (FP) of a plasma display panel comprising pairs of supporting electrodes (E1) and scanning electrodes (E2), a layer of dielectric material (DF) for protection of the electrodes and a layer (M) of magnesium oxide covering the layer of dielectric material;
- manufacturing a rear glass panel (RP) of a plasma display panel comprising barriers (R) defining channels (C) or cells in a finished display, address electrodes (AE) and phosphors (PR;
- PG;
- PB);
- forming getter material deposits (63, 63′, . . . ;
- 72, 72′, . . . ;
- 81, 81′, . . . ;
- 91, 91′, . . . ;
- 92, 92′, . . . ) on a free surface of the magnesium oxide layer at positions which will essentially correspond to contact areas between the front glass panel and the barriers on the rear glass panel;
- and subsequently
- contacting the getter material deposits with the barriers (R) and sealing along the outer perimeter of the front and rear glass panels, thus defining a closed space or a plurality of closed spaces inside the display panel.
Dependencies are inferred from the claim text.