Granted Patent
Utility
US 6,633,136 · App. 09/911,877
Current control circuit for display device of passive matrix type
Inventors:
Hak Su Kim, Young Sun Na
Patented Case
View Patent ↗
Granted: Oct 14, 2003
Filed: Jul 25, 2001
Inventors
Hak Su Kim
Young Sun Na
Assignee (at issue)
LG ELECTRONICS INC.
This patent predates the USPTO's electronic file wrapper — prosecution documents from this era exist only in the Patent Office's paper records. A certified copy of the file history can be ordered from the USPTO's paper archives.