| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide an EL display device capable of improving designability and visibility of display by changing a gradation state of a pixel with a simple configuration. <P>SOLUTION: A position at which electric power is supplied to a light emitting layer 13 is changed by switching connection states of respective switches SW1-SW3 of power supply switching means 30 for respective wiring lines (SEG_1-3) of anode wiring 15. A position at which a current is easily injected into the light emitting layer 13 can be changed according to switching of the connection states of the power supply switching means 30, so a light emission state of a pixel 10 can be changed, and the designability and visibility can be improved. Further, the electric power supplied to an anode 12 is controlled by the connection states of the power supply switching means 30 from single power supply means 20, so the EL display device can be constituted with a simple configuration including neither a plurality of voltage sources nor a modulation source. <P>COPYRIGHT: (C)2013,JPO&INPIT |
