Plasma display and method of producing phosphor used therein

Details Plasma display and method of producing phosphor used therein Plasma display and method of producing phosphor used therein

2004-09-24

2008-09-09

Patel, Nimeshkumar D. (Department: 2879)

Electric lamp and discharge devices

With luminescent solid or liquid material

With gaseous discharge medium

C313S582000, C252S301360, C252S30140R, C427S157000, C427S064000

Reexamination Certificate

active

07423368

ABSTRACT:
The present invention relates to a plasma display device and to a method of producing a phosphor to be used for the device, that prevents the phosphor layer from deteriorating, and improves the luminance, life, and reliability, of a plasma display panel (PDP). The plasma display device is equipped with a plasma display panel in which a plurality of discharge cells are arranged, phosphor layers (110R,110G,110B) in color corresponding to each discharge cell are disposed, and phosphor layers (110R,110G,110B) are excited by ultraviolet light to emit light. Green phosphor layer (110G) has a green phosphor including Zn2SiO4:Mn, the element ratio of zinc (Zn) to silicon (Si) at the proximity of its surface is2/1, which is the stoichiometric ratio, and the layer is positively charged or zero-charged.

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“Phosphor Handbook”, p. 219-220, published from Ohm Co., Ltd.

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