Plasma display unit including lanthnum substituted aluminate...

Details Plasma display unit including lanthnum substituted aluminate... Plasma display unit including lanthnum substituted aluminate...

2006-06-27

2006-06-27

Guharay, Karabi (Department: 2879)

Electric lamp and discharge devices

With luminescent solid or liquid material

With gaseous discharge medium

C313S582000, C313S485000, C252S30140R

Reexamination Certificate

active

07067969

ABSTRACT:
A blue phosphor composing a blue phosphor player in a plasma display device has a crystal structure of Ba(1-x)EuxMgAl10O17or Ba(1-x-y)EuxSryMgAl10O17. In this blue phosphor, La substitutes for a proportion of Ba or Sr so as to achieve a high-luminance plasma display device with less luminance deterioration in panel manufacturing processes.

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“Phosphor Handbook”, p. 219-220, published from Ohm Co., Ltd. on Dec. 25, 1987 with partial translation.
H. Kijima, “Crystal Structure and Degradation Mechanism of Blue Phosphor”, Display and Imaging, 1999, vol. 7, pp. 225-234.
Hajime Yamamoto, “Phosphors For Next-Generation Display Devices”, Applied Physics, vol. 70, No. 3 (2001), pp. 309-312 with partial translation.
M. Shiiki et al., “Thermal degradation of PDP phosphors”, Technical Report of IEICE. EID99-94 (Jan. 2001), pp. 117-122.

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