EP 1007996 A1 20000614 - A VIEWING SCREEN AND MASKLESS METHODS FOR MANUFACTURING
Title (en)
A VIEWING SCREEN AND MASKLESS METHODS FOR MANUFACTURING
Title (de)
BILDSCHIRM UND VERFAHREN ZUR HERSTELLUNG OHNE VERWENDUNG EINER MASKE
Title (fr)
ECRAN DE PRESENTATION ET PROCEDES SANS MASQUE POUR SA FABRICATION
Publication
Application
Priority
- US 9619834 W 19961213
- US 881295 P 19951218
- US 74378196 A 19961107
Abstract (en)
[origin: WO9722896A1] By providing light-directing features, such as grooves or lenses, cut or embossed into one surface of a film substrate intended for a viewing screen, tapered optical waveguides can be fabricated from a monomer mixture layer without the need for a separate mask that must be removed after the photopolymerization process. Alternatively, a gradient-index lens array can be used to concentrate and direct the light to form the waveguides in the monomer mixture layer.
IPC 1-7
IPC 8 full level
B05D 3/06 (2006.01); G02B 3/00 (2006.01); G02B 6/122 (2006.01); G03B 21/62 (2006.01)
CPC (source: EP KR)
G02B 3/00 (2013.01 - KR); G02B 6/1221 (2013.01 - EP); G03B 21/625 (2013.01 - EP)
Citation (search report)
See references of WO 9722896A1
Designated contracting state (EPC)
DE FR GB IT NL
DOCDB simple family (publication)
WO 9722896 A1 19970626; EP 1007996 A1 20000614; JP 3194527 B2 20010730; JP H11500544 A 19990112; KR 20000064281 A 20001106
DOCDB simple family (application)
US 9619834 W 19961213; EP 96944802 A 19961213; JP 52291697 A 19961213; KR 19980702823 A 19980417