The 1st process which forms the multiple 1st

摘要

PPROBLEM TO BE SOLVED: To suppress deterioration of an organic EL element driven by different driving methods, and form such an element easily and simply. PSOLUTION: An element substrate 1b is housed in a vapor-deposition device in reversed state, and a low molecular organic EL material is vapor-deposited in a monocolor display region 110M by using a vacuum vapor-deposition method. At that time, so that a new vapor-deposition layer will not be formed in a full color display region 110C, a vapor-deposition mask 11a is arranged between a vapor-deposition source 8a and the element substrate 1b. By this, a positive hole transportation layer, a light emitting layer, and the organic EL layer composed of an electron injection/transportation layer are formed sequentially in the whole monocolor display region 110M. PCOPYRIGHT: (C)2007,JPO&INPIT