Patent ID: 8760046

Claim:
A manufacturing method of a light-emitting device, the manufacturing method comprising the steps of: forming an element formation layer over a first substrate, wherein the element formation layer is formed by a method comprising the steps of: forming a thin film transistor over the first substrate; forming a first insulating film over the thin film transistor; forming a color filter over the first insulating film; forming an interlayer insulating film over the color filter; and forming a first electrode having light-transmitting ability over the interlayer insulating film, wherein the first electrode is electrically connected to the thin film transistor; bonding the element formation layer with a second substrate, allowing the element formation layer to be sandwiched between the first substrate and the second substrate; separating the first substrate from the element formation layer; bonding the element formation layer with a third substrate, allowing the element formation layer to be sandwiched between the second substrate and the third substrate; separating the second substrate from the element formation layer; forming an EL layer over the first electrode; and forming a second electrode over the EL layer, wherein the third substrate is a plastic substrate having light-transmitting ability.