| abstract |
A support plate is easily separated from a substrate. When separating a support plate from a laminate, the light diffusing member diffuses light incident from the light incident surface and emits the diffused light from a light emitting surface facing away from the light incident surface. 7 is installed adjacent to the laminate 1 so that the light emitting surface and the support plate 2 face each other, and the laminate 1 is irradiated with light through the light diffusion member 7. [Selection] Figure 1 |