Patent ID: 10324115

Abstract:
Provided is a method for measuring a current that a component of a matrix device can supply. A device including components (pixels) arranged in a matrix, first wirings, and second wirings and third wirings which cross the first wirings is used. Each component includes a potential supply circuit, a transistor, and a capacitor. The device is designed as follows: at a point in time, one electrode of the capacitor has a potential equal to that of a gate of the transistor, the other electrode of the capacitor has a potential equal to that of the second wiring, one of a source and a drain of the transistor has a potential equal to that of the first wiring, and the other of the source and the drain of the transistor has a potential equal to that of the third wiring; and the potential of the second wiring and the potential of the third wiring in the case where each component supplies the first wiring with a current in a given direction are different from the potential of the second wiring and the potential of the third wiring in the case where each component supplies the first wiring with a current in the opposite direction.