Light emitting diode (LED) displays; Digital signal processing apparatus; Encoding apparatus; Liquid crystal displays; Central processing units (CPUs); Recorded computer software; Data processing apparatus; Electronic numeric displays; Video screens; Multiplexers; Apparatus for the transmission of sound or images; Liquid crystal display screens; Electrical displays; Display monitors; Computer monitors; Advertising display apparatus (electric or luminous); Television apparatus; Liquid crystal display (LCD) televisions; Electronic interactive whiteboards; Electronic whiteboards; Programmable control apparatus; Computer apparatus; Electronic decoding instruments; Decoders; Computer software for use in controlling machines; Materials for electricity mains (wires, cables); Wires, electric; Electronic bulletin board apparatus; Flat screen display apparatus; Display signs of metal (luminous or mechanical); Electronic display boards; Interactive touch screen terminals; Electric power supply units; Accumulators, electric; Audio switching apparatus; Audio and video receivers