Abstract: A color display device capable of preventing discontinuity of a line in a single-color display by improving a pattern of dividing of a luminous unit. The color display device includes a plurality of picture cells each constituted by a plurality of luminous units emitting lights different in luminous color from each other. Each two luminous units which have a triangular shape formed by dividing a quadrilateral into two along a diagonal line thereof and constitute each of the picture cells each are permitted to emit light of one of luminous colors different from each other. Such construction, even when only one of the two luminous units constituting each of the picture cells is excited for single-color display, permits luminous units of the same color in the picture cells P adjacent to each other in the longitudinal and lateral directions to be observed in a manner to be continuously connected to each other at the apexes opposite to each other.