An electronic clock has hours and minutes represented by light diodes arranged in a circle or part-circle, as in an analogue display. It may be designed with or without hands. The whole face is covered by a partially transparent mirror. In use only the lit diodes, displaying the time as illuminated points on the dial, are visible; the non-activated diodes can not be seen. Larger diodes are used for the hours than for the minutes. it is therefore easy to read the time. Illuminated hands may be used additionally and the time-control may be switched off so that the clock is used simply as a mirror.
