Provided is a lighting device capable of displaying a desired image without an element such as a TFT in a light-emitting portion of the lighting device. The lighting device includes a light-emitting portion in which a plurality of light-emitting segments arranged in matrix and each including an EL layer between a pair of electrodes (an anode and a cathode). The area of a light-emitting region is varied as appropriate so as to obtain a desired light-emitting luminance from the light-emitting region in each the light-emitting segment; accordingly, gray-scale display can be performed and a still image can be displayed only by 1 external power source.