| 摘要 |
Display device comprising a grid of n light points and supply circuits for the electro luminescent diodes constituting these points. Each light point 11, 12, 13 ... is formed by at least one pair of electro luminescent diodes 1a, 2b, 2a, 2b ... mounted in anti-parallel pairs, and is supplied from an AC generator 2. In series with the supply to each light point is placed an electronic switch 61, 62, 63 ... which can receive control signals from an output 111a, 112a, 113a ... of a first group of outputs of a control circuit M, during the positive excursions of the supply voltage, and from another output 111b, 112b, 113b ... of a second group of outputs of the circuit M, during the negative excursions of the supply voltage. Application to the display of information in colour and with variable intensities. <IMAGE>
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