| 摘要 |
PURPOSE: A plasma picture screen is provided to obtain improved value for the luminance contrast performance without causing detraction of the efficiency of the phosphors. CONSTITUTION: A plasma cell of an AC plasma picture screen comprises a front plate(1) and a carrier plate(2). The front plate includes a glass plate(3) on which a dielectric layer(4) and a protective layer(5) are provided. The protective layer is made of MgO and the dielectric layer is made of a glass containing PbO. Parallel, strip-shaped discharge electrodes(6,7) are provided on the glass plate and covered by the dielectric layer. The discharge electrodes are made from metal or ITO. The carrier plate is made of glass, and parallel, strip-shaped address electrodes(10) made of Ag, are provided on the carrier plate so as to run perpendicularly to the discharge electrodes. The address electrodes are covered with a phosphor layer(9) which emits light in one of the three basic colors red, green, or blue. The phosphor layer is subdivided into several color segments. The red, green, and blue emitting color segments of the phosphor layer are provided in the form of perpendicular stripe triplets. The individual plasma cells are separated by a ribbed structure(12) with separating ribs made of a dielectric material.
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