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US 6,249,264 B1Granted
Surface discharge type plasma display panel with intersecting barrier ribs
AssigneeMitsubishi Denki Kabushiki Kaisha
InventorsKo Sano, Kanzou Yoshikawa, Takeo Saikatsu, Takao Yasue, Toyohiro Uchiumi
Life of this patent
Estimating the term…
Abstract
Barrier ribs of the second type (50) of the same height and material as barrier ribs of the first type (29) are formed on a second substrate in parallel with each other along a first direction (D1) to which display electrodes XE and YE extend. Further, phosphors (28) adhere to both side surface portions (50W3 and 50W4) of the barrier ribs of the second type (50). This achieves a surface discharge type PDP capable of reducing a loss of ultraviolet rays due to repetition of the self absorption and emission of ultraviolet rays, and preventing the leakage of luminescence and discharge to adjacent display lines.
Claims18
A surface discharge type plasma display panel comprising:
- a first substrate;
- a second substrate facing said first substrate in parallel, which provides a plurality of discharge spaces filled with discharge gas therebetween;
- a dielectric which is arranged on an opposing surface of said first substrate to said second substrate, abuts on said plurality of discharge spaces, and has a surface storing first and second wall charges in accordance with each of said plurality of discharge spaces;
- a plurality of barrier ribs of a first type which are arranged in parallel with each other on an opposing surface of said second substrate to said first substrate and have portions which reflect light of a visible-light area, each of said plurality of barrier ribs of the first type comprising a first side surface portion, a second side surface portion opposite to said first side surface portion, and a first top portion led to said first and second side surface portions;
- a barrier rib of a second type arranged on said opposing surface of said second substrate and intersecting with said plurality of barrier ribs of the first type;
- and
- phosphors provided on said opposing surface of said second substrate sandwitched between adjacent barrier ribs of the first type out of said plurality of barrier ribs of the first type, on said first side surface portion of one of said adjacent barrier ribs of the first type, and on said second side surface portion of the other of said adjacent barrier ribs of the first type, said phosphors emitting visible light in accordance with ultraviolet rays caused by discharge between said first and second wall charges.
4 more elements
A plasma display device comprising:
- a first substrate:
- a second substrate facing said first substrate in parallel, which provides a plurality of discharge spaces filled with discharge gas therebetween;
- a plurality of pairs of electrodes each consisting essentially of first and second electrodes which extend in parallel with each other along a first direction on an opposing surface of said first substrate to said second substrate;
- a dielectric which is formed on said opposing surface of said first substrate, covers said plurality of pairs of electrodes, and has a surface storing first and second wall charges in accordance with each of said plurality of discharge spaces;
- a plurality of barrier ribs of a second type extending in parallel with each other along said first direction on an opposing surface of said second substrate to said first substrate;
- and
- a plurality of barrier ribs of a first type extending in parallel with each other along a second direction orthogonal to said first direction on said opposing surface of said second substrate to said first substrate, said plurality of barrier ribs of the first type intersecting with said plurality of barrier ribs of the second type;
- a plurality of phosphors each provided on said opposing surface of said second substrate surrounded by adjacent barrier ribs of the first type out of said plurality of barrier ribs of the first type and by adjacent barrier ribs of the second type out of said plurality of barrier ribs of the second type, and on opposite side surface portions of at least one out of both of said adjacent barrier ribs of the first type and said adjacent barrier ribs of the second type, each of said plurality of phosphors having portions emitting visible light in accordance with ultraviolet rays caused by discharge between said first and second wall charges stored in said surface of said dielectric,
- wherein said second substrate comprises a plurality of third electrodes extending in parallel with each other along said second direction and located between said adjacent barrier ribs of the first type, and
- each of said plurality of discharge spaces is specified by one pair of electrodes of said plurality of pairs of electrodes, and a third electrode orthogonal to said pair of electrode out of said plurality of third electrodes,
- said plasma display device further comprising:
- a drive control circuit having a plurality of drivers each connected to said first and second electrodes of said plurality of pairs of electrodes, and said plurality of third electrodes, and each generating and outputting a driving signal to be applied to its corresponding electrode.
9 more elements
Dependencies are inferred from the claim text.