EP 0068726 A1 19830105 - Display panel.
Title (en)
Display panel.
Title (de)
Anzeigetafel.
Title (fr)
Panneau d'affichage.
Publication
Application
Priority
GB 8119058 A 19810619
Abstract (en)
In order to provide a display of numeric or alpha numeric information, a multi-segment array consists of a series of apertures 6 in an opaque sheet 4. Each aperture 6 is associated with a light-tight shutter or flap 7 individually controlled by an electromagnetic arrangement for movement between a closed position wherein it occludes the aperture 6 and an open position concealed behind the opaque sheet (4). The apertures 6 are preferably back-lit by a source of diffused light, which may illuminate a number of panels, but front lighting and reflecting coating on the flaps 7 may be used if desired.
IPC 1-7
IPC 8 full level
G09F 9/37 (2006.01); G09F 13/04 (2006.01)
CPC (source: EP)
G09F 9/375 (2013.01); G09F 13/0472 (2021.05)
Citation (search report)
- [X] US 4070668 A 19780124 - KAWAHARADA MASARU, et al
- [X] US 3947984 A 19760406 - WINROW DONALD
- [X] US 4215338 A 19800729 - SELIG GUENTHER [US]
Designated contracting state (EPC)
DE FR GB IT NL SE
DOCDB simple family (publication)
DOCDB simple family (application)
EP 82303133 A 19820616