The invention relates to a substrate comprising a glass sheet (1) having a thickness which is smaller than or equal to 0.1 mm, the glass sheet (1) being provided with a layer of a synthetic resin material (2) having a thickness which is smaller than or equal to that of the glass sheet (1). This substrate proves to be flexible. In addition, the substrate cracks less easily, so that it can be processed more readily. The substrate may be used, for example, in light-emitting devices, such as a poly-LED or PALC.