Apparatus for driving capacitive light emitting elements

Details Apparatus for driving capacitive light emitting elements Apparatus for driving capacitive light emitting elements

2008-03-18

2008-03-18

Hjerpe, Richard (Department: 2629)

Computer graphics processing and selective visual display system

Plural physical display element control system

Display elements arranged in matrix

C345S076000, C315S169100

Reexamination Certificate

active

07345662

ABSTRACT:
An apparatus for driving capacitive light emitting diodes which can be reduced in size. For supplying a capacitive light emitting diode with a driving pulse which varies the voltage with a predetermined amplitude through a driving line, the driving apparatus comprises a resonance current path including a capacitor, a first switching element for supplying the driving line with a current in accordance with charges accumulated on the capacitor when it is on, and a second switching element for grounding one electrode of the capacitor when it is on, thereby supplying the other electrode of the capacitor with a current in accordance with charges accumulated in the capacitive light emitting element through the driving line.

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