EP 0206176 A2 19861230 - An optical guide matrix for a dot-matrix luminous display.
Title (en)
An optical guide matrix for a dot-matrix luminous display.
Title (de)
Matrix aus optischen Leitern für eine Punktmatrix-Leuchtanzeige.
Title (fr)
Matrice à guides optiques pour une enseigne lumineuse à matrice de points.
Publication
Application
Priority
- JP 9924885 U 19850628
- JP 10345685 U 19850705
Abstract (en)
A matrix display board in which linear electrodes are perpendicularly arranged on opposite sides of an insulating board, with luminous elements at each electrical intersection. A masking member which is made of a material having Young's modulus not higher than 100 kg/cm<2> or not lower than 5x10<5> kg/cm<2>, is joined to the surface having the luminous elements with through-holes corresponding to the luminous elements. The through-holes are shaped and/or filled with a light transmitting material having a concave portion, in order to increase luminous flux density around luminous parts.
IPC 1-7
IPC 8 full level
G09F 9/33 (2006.01); G09F 13/22 (2006.01)
CPC (source: EP)
G09F 9/33 (2013.01); G09F 13/22 (2013.01); G09F 2013/222 (2013.01)
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
EP 0206176 A2 19861230; EP 0206176 A3 19871125; EP 0206176 B1 19920102; DE 3683195 D1 19920213; HK 47095 A 19950407
DOCDB simple family (application)
EP 86108122 A 19860613; DE 3683195 T 19860613; HK 47095 A 19950330