Plasma display panel and method for manufacturing the same
AssigneeFujitsu Limited
InventorsKazunori Inoue, Saburou Morita, Osamu Toyoda, Motonari Kifune
Life of this patent
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Abstract
A PDP having a novel cell structure that is superior in light emission efficiency is provided. A conductive film to be display electrodes X and Y is formed on side portions of a wall so that a main surface that contributes to discharge in the display electrode X is disposed so as to be opposed to a main surface of the neighboring display electrode Y via a gas space. A power supplying portion straddling plural cells in the display electrodes X and Y is provided on the upper surface of the wall. The display electrodes X and Y are covered with a dielectric layer that is thin at the side portion and thick at the top portion of the wall.
Claims6
A plasma display panel, comprising:
- a pair of substrates opposed to each other and constituting an enclosure;
- wall portions disposed at respective boundaries between corresponding neighboring discharge cells and extending in a direction narrowing a gap between the opposed substrates, locally, each discharge cell having opposed side surfaces of wall portions at opposite ends thereof;
- a conductive film formed on the wall portions so as to straddle a top surface and spaced side surfaces of the wall portions;
- and
- a dielectric layer covering the conductive film, wherein the dielectric layer is thicker in a portion thereof covering the top surface than in a portion thereof covering the side surfaces, so that a discharge is generated more easily between the opposed side surfaces than between other surfaces thereof when a voltage is applied between conductive films of the opposed side surfaces of respective discharge cells.
A method for manufacturing a plasma display panel that includes a pair of substrates opposed to each other and constituting an enclosure, wall portions disposed at respective boundaries between corresponding neighboring discharge cells and extending in a direction narrowing a gap between the opposed substrates, locally, each discharge cell having opposed side surfaces of wall portions at opposite ends thereof;
- a conductive film formed on the wall portions so as to straddle over the top surface and the side surfaces of the wall and a dielectric layer covering the conductive film, wherein the dielectric layer is thicker in a portion thereof covering the top surface than in a portion thereof covering the side surfaces, so that a discharge is generated more easily between the opposed side surfaces than between other surfaces thereof when a voltage is applied between the conductive films of the opposed side surfaces of respective discharge cells, the method comprising:
- applying a first glass paste containing filler restricting flow of the paste only to the top surface of the wall;
- drying the first glass paste;
- applying a second glass paste having more flowability on baking than the first glass paste to the entire wall, so as to cover the dried first glass paste;
- drying the second glass paste;
- and
- baking the dried first glass paste and the second glass paste as a bulk for forming the dielectric layer.
Dependencies are inferred from the claim text.