Patent ID: 6873400

Claim:
A scanning exposure method comprising the steps of: moving a mask having first and second patterns, and a substrate for display panel in synchronization; and exposing the first and second patterns on the substrate for display panel, wherein when the first and second patterns are exposed along a synchronous moving direction of the substrate for display panel, a part of the first pattern and a part of the second pattern overlap and are exposed, and a synchronous moving speed of the mask and the substrate for display panel when there is overlapping exposure is set different from a synchronous moving speed of the mask and the substrate for display panel when there is no overlapping exposure; and wherein a position of a blind plate which sets an illumination region along a direction orthogonal to a scanning direction during a scanning exposure is changed during the scanning exposure so that an overlapping region in which the overlapping exposure is performed extends in a direction that differs from an arrangement direction of the patterns which are arranged parallel to the scanning direction.