The present invention relates to an appliance having a micro-pattern for displaying a pattern or a character, and a method for fabricating a structure having a micro-pattern, and more particularly, to a method for displaying a pattern or a character more effectively. The power-generating system is disposed in the storage case. Each pixel of the plurality of pixels includes an absorber layer, a barrier layer on the absorber layer, a collector layer on the barrier layer, and a backside electrical contact coupled to the absorber layer.