Back-light apparatus for liquid crystal display device

Details Back-light apparatus for liquid crystal display device Back-light apparatus for liquid crystal display device

2008-07-01

2008-07-01

Shalwala, Bipin (Department: 2629)

Computer graphics processing and selective visual display system

Plural physical display element control system

Display elements arranged in matrix

C345S084000

Reexamination Certificate

active

07394449

ABSTRACT:
A back-light apparatus for a display includes: a plurality of light emitting diodes attached on a substrate; a first common line mounted on the substrate to commonly connect first electrodes of the light emitting diodes; a second common line mounted on the substrate to commonly connect second electrodes of the light emitting diodes; a plurality of third lines connected to preceding second electrodes of the light emitting diodes and succeeding first electrodes of the light emitting diodes; first and second selection switches disconnecting the first common line and the second common line so that the light emitting diodes are connected in parallel; third selection switches for disconnecting the third lines so that the light emitting diodes are connected in series; a power unit to supply power to the light emitting diodes; and a control unit to control the first, second and third selection switches for the light emitting diodes.

REFERENCES:
patent: 6160596 (2000-12-01), Sylvester et al.
patent: 6841947 (2005-01-01), Berg-johansen
patent: 6873262 (2005-03-01), Midlang
patent: 6891525 (2005-05-01), Ogoro
patent: 7002546 (2006-02-01), Stuppi et al.

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