EP 0990373 A1 20000405 - ELECTOLUMINESCENT DEVICE AND METHOD FOR PRODUCING THE SAME
Title (en)
ELECTOLUMINESCENT DEVICE AND METHOD FOR PRODUCING THE SAME
Title (de)
ELEKTROLUMINESZIERENDE VORRICHTUNG UND VERFAHREN ZUR HERSTELLUNG DERSELBEN
Title (fr)
DISPOSITIF ELECTROLUMINESCENT ET SON PROCEDE DE FABRICATION
Publication
Application
Priority
- JP 15492897 A 19970612
- US 9811321 W 19980608
Abstract (en)
[origin: WO9857525A1] An electroluminescent (EL) device is disclosed and includes an electroluminescent element (9) having a light-emitting surface (91), and a prismatic film (1) having a surface (11) on which a plurality of prisms are provided and a back surface (12) opposed to said surface (11) and being placed on said light-emitting surface (91), wherein the back surface (12) of the prismatic film (1) and said light-emitting surface (91) of the electroluminescent element (9) are closely bonded optically. The EL device can effectively intensify the light which is emitted in the normal line direction and also in the direction deviating from the normal line, and increase the luminance in the wide observation angle range.
IPC 1-7
IPC 8 full level
G09F 13/22 (2006.01); H05B 33/02 (2006.01); H05B 33/10 (2006.01); H05B 33/12 (2006.01); H05B 33/14 (2006.01)
CPC (source: EP)
H05B 33/02 (2013.01); H05B 33/10 (2013.01); H05B 33/12 (2013.01); H05B 33/145 (2013.01)
Citation (search report)
See references of WO 9857525A1
Designated contracting state (EPC)
DE GB
DOCDB simple family (publication)
WO 9857525 A1 19981217; AU 7809198 A 19981230; EP 0990373 A1 20000405; JP H118063 A 19990112
DOCDB simple family (application)
US 9811321 W 19980608; AU 7809198 A 19980608; EP 98926197 A 19980608; JP 15492897 A 19970612