Backlight assembly and display device having the same

Details Backlight assembly and display device having the same Backlight assembly and display device having the same

2007-10-19

2010-11-02

Philogene, Haissa (Department: 2821)

Electric lamp and discharge devices: systems

Plural load device systems

C315S318000, C315S291000, C315S169100, C345S102000, C345S082000

Reexamination Certificate

active

07825613

ABSTRACT:
A backlight assembly includes a plurality of unit blocks to emit light. Each unit block includes a light-emitting part and a driving part. The light-emitting part includes at least two red light-emitting diodes (LEDs), two green LEDs, and two blue LEDs. The driving part includes a red LED-driving element that provides the red LEDs with a driving voltage, a green LED-driving element that provides the green LEDs with a driving voltage, and a blue LED-driving element that provides the blue LEDs with a driving voltage. LEDs may be driven together in a group, or may be driven individually to sequentially emit red light, green light, and blue light so a color filter is not included in a display panel having the backlight assembly. A driving element is connected to the LEDs to reduce manufacturing costs for the driving element circuits, thereby reducing manufacturing costs of the backlight assembly.

REFERENCES:
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patent: 6628357 (2003-09-01), Maeda et al.
patent: 7220039 (2007-05-01), Ahn et al.
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patent: 7276863 (2007-10-01), Lee et al.
patent: 7511435 (2009-03-01), Ye et al.
patent: 7632000 (2009-12-01), Han et al.

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