Organic electroluminescence device and its driving method
An organic electroluminescence device in which an organic compound thin film having at least a light-emitting layer is disposed between an anode and a cathode. The device is so driven that the distribution of luminance or color in a single light emission surface by using the sheet resistance of the anode or cathode is modulated with time. For example, two or more connection portions are provided to at least the anode or cathode, and voltages are applied to the connection portions, respectively to modulate at least one of the amplitude, frequency, phase, or offset of the voltage applied to each connectin portion. Thus, a thoroughly novel organic electroluminescence device the luminance/color of which can be modulated, for example, wavingly at a single light-emitting surface.