Plasma picture screen with blue phospor
AssigneeKoninklijke Philips Electronics N.V.
InventorsThomas Jüstel, Wolfgang Busselt, Hans Nikol
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Abstract
A plasma picture screen provided with a luminescent layer which comprises a blue Eu2+-activated phosphor and a UV-C light emitting phosphor. The mixing of an UV-C light emitting phosphor with an Eu2+-activated phosphor or coating of an Eu2+-activated phosphor with a UV-C light emitting phosphor or coating of a base layer of an Eu2+-activated phosphor with a covering layer of a UV-C light emitting phosphor clearly reduces the photodegradation of the Eu2+-activated phosphors in the VUV range.
Claims8
A plasma picture screen provided with a luminescent layer, which has a heterogeneous mixture of an Eu2+-activated phosphor and a UV-C light emitting phosphor.
A luminescent screen provided with a luminescent layer which contains a heterogeneous mixture of an Eu2+-activated phosphor and a UV-C light emitting phosphor.
Dependencies are inferred from the claim text.