LED backlight apparatus with color deflection removed at...

Details LED backlight apparatus with color deflection removed at... LED backlight apparatus with color deflection removed at...

2006-10-24

2009-12-08

Hjerpe, Richard (Department: 2629)

Computer graphics processing and selective visual display system

Plural physical display element control system

Display elements arranged in matrix

C349S061000, C349S062000, C349S064000

Reexamination Certificate

active

07629957

ABSTRACT:
The invention relates to a direct backing type LED backlight apparatus which supplies a white light source by mixing monochromatic LEDs to a display device. The backlight apparatus includes a first LED row composed of red LEDs disposed adjacent to opposed peripheries of a substrate with green, blue and red LEDs alternately disposed between the red LEDs at the peripheries. The backlight apparatus also includes a second LED row having a similar arrangement of LEDs with blue LEDs disposed adjacent to the opposed peripheries. The backlight apparatus regulates the amount of radiation from the red and blue LEDs to be smaller than the amount of radiation from the rest of the LEDs. This allows elimination of color deflection at the peripheries of a light guide panel.

REFERENCES:
patent: 2005/0174318 (2005-08-01), Chou et al.
patent: 2006/0007112 (2006-01-01), Park
patent: 11-052379 (1999-02-01), None
patent: 11-162233 (1999-06-01), None
patent: 2003-195298 (2003-07-01), None
patent: 2005-203346 (2005-07-01), None
patent: 2005-243347 (2005-09-01), None
Japanese Office Action issued in Japanese Patent Application No. JP 2006-297232, dated Jun. 2, 2009.

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