Patent ID: 8860301

Claim:
A dimming method of an organic EL displaying apparatus having a displaying unit constructed by combining a plurality of pixels each including: a substrate; an organic EL element formed over the substrate; a wiring layer having a power supply line to supply a voltage of a power source to the organic EL element; at least one TFT provided on a wiring path from the power supply line to the organic EL element; a reflecting film for reflecting light emitted from the organic EL element and progresses to the substrate side; and a protecting film further provided on the displaying unit wherein a semiconductor layer included in the TFT has a region which overlaps the reflecting film when seen as a plan view, and a laser beam is irradiated from a downward direction of the substrate to a region which overlaps the reflecting film when seen as a plan view and does not overlap a gate electrode, a source electrode, a drain electrode, and the wiring layer when seen as a plan view in a plane region where the semiconductor layer is provided.