Luminous signs; Organic light-emitting diodes (OLED); Backlit signs; Organic light emitting diodes (OLED); Neon signs; Luminous variable/dynamic signs using light emitting diodes and electronic controllers to produce real-time and programmable messages and information displays; Electronic advertisement boards featuring a neon lamp; Safety markers; Light emitting diodes (LEDs); Light diodes
Electrical and Scientific Apparatus