Thomson Licensing

Thomson Licensing S.a.

Thomson Plasma

Yvan Raverdy

Guy Baret

Pierre Paul Jobert

Serge Salavin

Benoit Racine

Agide Moi

Jean-Pierre Creusot

Jean-Yves Brun

The invention relates to a faceplate including a dielectric layer and a protection layer. According to the invention, in order to re-scatter the UV radiation, the interface between the dielectric layer and the protection layer is structured such that it has an average roughness, which is included in the wavelength domain of said radiation, of between 130 and 20 nm in particular. Such re-scattering means are significantly more economical and effective than previous means. The aforementioned roughness can be obtained by performing an abrasion operation on the surface of the dielectric layer.

Plasma panel faceplate comprising UV radiation re-scattering means

Panel including a transparent front plate and a rear plate that leave between them discharge spaces, the walls of which are at least partly coated with a layer of a phosphor capable of emitting green, blue or red light; the green phosphor is formed from a mixture of two aluminates having a spinel structure, one A doped with manganese and the other B doped with cerium and with terbium; preferably, the blue phosphor is based on an aluminate of the same structure. The static charges of the various phosphors are homogenized and the risks of phosphor performance degradation during manufacture of the panel are limited.

Plasma display panel with a green phosphor composed of a mixture of aluminates of spinel structure

The invention applies to plasma display panels consisting of two facing plates enclosing a discharge space and comprising an array of discharge cells (X , X , . . . , X , etc.). A display panel according to the invention has at least one porous layer which contains less than 10% of a hardening agent. The porous layer is either a barrier layer or a gettering layer.

Plasma display panel having a porous structure

The present invention relates to a plasma panel comprising a first tile called the rear tile and a second tile called the front tile, the two tiles being joined together with a distance of separation defining a space filled with gas, a first array of electrodes which is formed from a set of two parallel electrodes, called the sustaining electrodes, and which is placed on one of the tiles, a second array of electrodes called the addressing electrodes which is placed on the other tile, and an array of barriers which is placed on one of the tiles parallel to the array of addressing electrodes. According to the invention, the array of barriers is positioned on the tile carrying the first array of electrodes, the barriers having a height of less than the distance of separation between the two tiles and the separation between the two tiles is obtained by specific spacing means.

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Bernin, France

Yvan Raverdy