Computer graphics processing and selective visual display system – Plural physical display element control system – Display elements arranged in matrix
Reexamination Certificate
2006-01-03
2006-01-03
Tran, Henry N. (Department: 2674)
Computer graphics processing and selective visual display system
Plural physical display element control system
Display elements arranged in matrix
C345S036000, C345S045000, C315S169300
Reexamination Certificate
active
06982687
ABSTRACT:
Data drive circuit for a current writing type AMOEL display panel including a plurality of current output channels, and a plurality of channel current generating circuits on respective current output channels for minimizing a difference of current levels occurred between the current output channels, each inclusive of one pair of transistors, a current generating part for generating a current of a small deviation proportional to square of a difference of threshold voltages of the one pair of the transistors, and a current mirror part for mirroring the current, and forwarding the mirrored current as a channel current for the channel, thereby minimizing a difference of current levels occurred between output channels, and driving the AMOEL display panel uniformly.
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patent: 6323631 (2001-11-01), Juang
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Kim Hak Soo
Kwan Oh Kyoung
Na Young Sun
Fleshner & Kim LLP
Lesperance Jean
LG Electronics Inc.
Tran Henry N.
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