MASK

摘要

PURPOSE: A mask is provided to offer an originating pattern which is accurately implemented for a light originating layer of a large surface by radiating light to an irradiated surface. CONSTITUTION: A mask(40) includes one or more opening units(42) which guide light to an irradiated body(50). The size of the opening unit is controlled by a distance with the irradiated body. The surface of the irradiated body is formed into a curved surface. The width of the opening unit is 540 micrometers. The thickness of the opening unit is 100mm. A gap between the opening units is about 540 micrometers.