Method of current matching in integrated circuits

Details Method of current matching in integrated circuits Method of current matching in integrated circuits

2005-11-15

2005-11-15

Eisen, Alexander (Department: 2674)

Computer graphics processing and selective visual display system

Plural physical display element control system

Display elements arranged in matrix

C345S211000, C315S169300

Reexamination Certificate

active

06965360

ABSTRACT:
A method of providing balanced currents at locations in devices requiring accurate, matched and repeatable current sources, for example visual displays having arrays of light-emitting sources. In one embodiment, the method provides closely balanced currents flowing through column drivers located at or near end regions of a display area. The method allows for more closely matching currents at adjacent columns in a device such as a visual display, wherein the currents are driven by separate driver circuits, thereby eliminating discontinuity in brightness across the entire display area and providing higher quality visual display devices. Another embodiment provides closely balanced currents flowing through column drivers located at or near end regions of a display area. The method additionally allows for balancing currents at adjacent columns or regions throughout the device.

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