Patent ID: 6822243
Filing Date: 2004-11-23
Classification: C09K,G21K

Abstract:
A phosphor panel comprising a phosphor layer and a protective layer, wherein the phosphor layer has a main surface and edges, characterized in that said protective layer is divided in at least two layers:a layer A, being closest to said phosphor layer and a layer B farther away from said phosphor layer; and wherein said layer A has a lower water vapour permeability coefficient than said layer B wherein said layer A has a water vapour permeability coefficient, P, so that 0&leq;P&leq;1Ã—10-11&it;cm3&af;(STP)&CenterDot;cmcm2&CenterDot;s&CenterDot;P&it;â€ƒ&it;aand wherein said layer A is adjacent to the said phosphor layer and contains a layer of parylene.