A display unit has first and second substrates, a liquid crystal display, an organic electroluminescent display, a reflector and a plurality of common electrodes. The liquid crystal display is located between the substrates. The organic electroluminescent display is located between the first substrate and the liquid crystal display. The organic electroluminescent display has an organic electroluminescent layer. The reflector reflects a light that passes through the organic electroluminescent layer and the liquid crystal display. The common electrodes are commonly used for both displays. Pixels are formed on both displays. In each display, each pixel is located at a position that corresponds to one of the common electrodes.

 
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> CIRCUIT, DRIVER CIRCUIT, ORGANIC ELECTROLUMINESCENT DISPLAY DEVICE ELECTRO-OPTICAL DEVICE, ELECTRONIC APPARATUS, METHOD OF CONTROLLING THE CURRENT SUPPLY TO AN ORGANIC ELECTROLUMINESCENT PIXEL, AND METHOD FOR DRIVING A CIRCUIT

> Range selectable address decoder and frame memory device for processing graphic data at high speed using the same

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