Granted Patent
Utility
US 6,057,901 · App. 09/007,823
Liquid crystal display with first and second tilted retarders
Inventor:
Gang Xu
Patented Case
View Patent ↗
Granted: May 2, 2000
Filed: Jan 15, 1998
Inventor
Gang Xu
Assignee (at issue)
OIS Optical Imaging Systems, 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.