Method for manufacturing a display device including irradiating overlapping regions

摘要

A device-forming region where a semiconductor device is formed is arranged on a substrate in the matrix of 2x2. A linear laser beam has a cross-section having a length longer than the width of the device-forming region. When the irradiation of the laser beam is performed, the region irradiated with the end portions of the linear laser beams overlapped with each other or brought into contact with each other, is made positioned outside the device-forming region.