Fluorescent lamp and liquid crystal display device having...

Details Fluorescent lamp and liquid crystal display device having... Fluorescent lamp and liquid crystal display device having...

2006-07-18

2006-07-18

Whitehead, Jr., Carl (Department: 2813)

Liquid crystal cells, elements and systems

Particular structure

Particular illumination

C349S023000, C349S073000, C349S089000

Reexamination Certificate

active

07079201

ABSTRACT:
A fluorescent lamp for a backlight of a liquid crystal display device and a liquid crystal display device having the same are disclosed. The fluorescent lamp includes a red color phosphor having a maximum luminous wavelength of about 600 nm to 620 nm, a green color phosphor having a maximum luminous wavelength of about 520 nm to 555 nm and a blue color phosphor having a maximum luminous wavelength of about 440 nm to 460 nm. The green color phosphor has one maximum luminous peak or the side peak having about 20% or smaller relative size in comparison with the maximum luminous peak beside the maximum luminous peak. Therefore, by removing or minimizing the side luminous peak of the green color phosphor, the color reproductivity can greatly increase without decreasing the brightness of the white color.

REFERENCES:
patent: 6445119 (2002-09-01), Mori et al.
patent: 6452324 (2002-09-01), Soules et al.
patent: 2000021095 (1998-09-01), None

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