Patent ID: 9622319
Date: 2017-04-11
CPC Classifications: C23C,H01L,H05B,Y10T

Claim:
1. A film formation substrate comprising: a substrate on which a plurality of film formation regions are provided in a predetermined direction with spaces therebetween; first films each of which is formed on the substrate so as to cover a corresponding one of the plurality of film formation regions; second films each of which is formed in a region between the plurality of film formation regions; an edge cover formed adjacent the first films and the second films; and a plurality of sub-pixels each of which has a first electrode and an opening to the edge cover, wherein the opening to the edge cover is formed by positioning the edge cover to cover edge sections of the first electrode, and wherein the opening is contained in corresponding one of the first films or the second films, each of the first films having, at both ends thereof in the predetermined direction, a first film-thickness-gradually-diminishing part whose thickness gradually diminishes towards a front end, in the predetermined direction, of the first film-thickness-gradually-diminishing part, each of the second films having, at both ends thereof in the predetermined direction, a second film-thickness-gradually-diminishing part whose thickness gradually diminishes towards a front end, in the predetermined direction, of the second film-thickness-gradually-diminishing part, and the second film-thickness-gradually-diminishing part overlapping the first film-thickness-gradually-diminishing part, wherein at least some of the first films are red luminescent layers, at least some of the first films are green luminescent layers, at least some of the first films are blue luminescent layers, and each of the second films is (i) a blue luminescent layer, (ii) a host material constituting the blue luminescent layer, or (iii) an electron transfer layer, each of the first films has a first substantially flat part and each of the second films has a second substantially flat part, and the first film-thickness-gradually-diminishing part overlaps the opening corresponding to one of the first films, and the second film-thickness-gradually-diminishing part does not overlap the opening corresponding to one of the second films.