The purpose of the present invention is to provide: a composition exhibiting a high refractive index; a transparent film obtained by curing said composition; and a solid-state imaging element and a display device that include said transparent film. This composition comprises at least one type of compound selected from the group consisting of a resin (P) including a partial structure represented by general formula (a), and a polymerizable compound (Q) including a partial structure represented by general formula (a). Herein, Ar1 to Ar4 each independently represent an aryl group that may have a substituent.
