| abstract |
This invention is a manufacturing method of the combined optical film which abuts at least 1 end surface of a some optical film mutually, Comprising: The process (1) and the butt | matching part of the said optical film which cross-butt each other's end surfaces of an optical film with a clearance gap. At least one side of the gap between the abutting portions of the optical film and a container containing an organic solvent or an adhesive, and at least one of It has a process (3) of filling a solvent or an adhesive agent, and the process (4) of decompressing | removing the said organic solvent or adhesive agent, and joining the said butt end surface. According to the manufacturing method of such a combined optical film, light leakage can be prevented without damaging an external appearance, and a combined optical film can be manufactured efficiently. n n Combination type optical film, adhesive, organic solvent, butt, gap, clamping material |