Multicolor light source and backlight module using the same

Details Multicolor light source and backlight module using the same Multicolor light source and backlight module using the same

2007-11-27

2007-11-27

Ward, John Anthony (Department: 2885)

Illumination

Plural light sources

Particular wavelength

C362S249070, C362S612000, C362S613000

Reexamination Certificate

active

11145107

ABSTRACT:
A backlight module (20) includes a light guide plate (200) and a light source (10). The light guide plate includes a light incident surface (220) opposite to the light source. The light source includes a plurality of multicolor based LEDs (120) and the LEDs each includes a plurality of LED chips (120A/B/C). The light source can achieve colored light beams with fewer LEDs, and no color filter is needed in the backlight module or a liquid crystal display using the light source. Thus, the cost of the backlight module can be reduced.

REFERENCES:
patent: 4756017 (1988-07-01), Bush
patent: 6288700 (2001-09-01), Mori
patent: 6297598 (2001-10-01), Wang et al.
patent: 6608614 (2003-08-01), Johnson
patent: 6905228 (2005-06-01), Takeyasu et al.
patent: 7002546 (2006-02-01), Stuppi et al.

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