Granted Patent
Utility
US 6,400,440 · App. 09/339,263
Passive liquid crystal display having pre-tilt control structure and light absorbent material at a center
Inventors:
Evan G. Colgan, Shui-Chih Lien, Kai Schleupen
Patented Case
View Patent ↗
Granted: Jun 4, 2002
Filed: Jun 23, 1999
Inventors
Evan G. Colgan
Shui-Chih Lien
Kai Schleupen
Assignee (at issue)
International Business Machines Corporation
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.