A fully or partly edged panel of wood or wood fibre. The matrix substrate includes pixels arranged in a matrix, N driving lines arranged in a row direction, P connection terminals where P is less than N, a demultiplexer which is disposed between the connection terminals and the driving lines and which includes first polycrystalline semiconductor TFTs and first connection terminals. After that, the glass substrate is peeled off from the semiconductor circuit portion, and a mold resin is poured to cover the periphery of the semiconductor circuit portion from a direction of the separation plane.