Granted Patent
Utility
US 6,570,197 · App. 09/939,634
Optical device having sensing TGTs and switching TFTs with different active layer thickness
Inventor:
In-Su Joo
Patented Case
View Patent ↗
Granted: May 27, 2003
Filed: Aug 28, 2001
Inventor
In-Su Joo
Assignee (at issue)
LG Philips LCD Co., Ltd.
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.