| 摘要 |
In a display device, an active element (A) captures data of a signal line into a memory element while the active element (A) is selected by a selection line, and the active element that makes up an electro-optical element applies a voltage of a reference line to an organic EL element according to storage contents of the memory element, thereby performing storage holding operation for each pixel while preventing rewriting of the same data so as to save power. In order to realize multi-gray-level display, the display device reduces the number of wires and power consumption. In order to do so, more specifically, two or more memory elements are provided in accordance with a desired gray-scale for display. Further provided are active elements (B), each of which is associated with each memory element, and bit selection lines routed to be shared by control input terminals of the active elements (B) having the equivalent bit order to each other, either one of the bit selection lines being selected at a time. Data is written during a non-selection period, and the bit selection line is selected only for the duration of weighted bit during a selection period.
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