Imaging device with specific phosphor

Details Imaging device with specific phosphor Imaging device with specific phosphor

2006-05-30

2010-02-02

Patel, Vip (Department: 2889)

Electric lamp and discharge devices

Cathode ray tube

Screen

C313S486000

Reexamination Certificate

active

07656081

ABSTRACT:
To provide an imaging device that shows high resolution and high luminance and produces good-quality images, an imaging device includes phosphor layer having a thickness of 40 μm or less and containing a phosphor having a composition represented by chemical formula: Y2−x−yTbxScySiO5, wherein “x” and “y” are atomic ratios and satisfy the following conditions: 0<x≦1 and 0<y≦1. The phosphor preferably has a strongest diffraction peak at diffraction angle 2θ of 30.65° to 30.9° in X-ray diffraction for better properties. The phosphor can be prepared by firing a mixture of a compound containing Y, Sc, and Tb with a compound containing Si.

REFERENCES:
patent: 56-167783 (1981-12-01), None
patent: 62-260885 (1987-11-01), None
patent: 02-289679 (1990-11-01), None
patent: 2003-115481 (2003-04-01), None

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