Emitter, method of designing brightness of emitter, program for method of designing brightness of emitter, electrooptical device and electric device

摘要

An emitter includes a plurality of types of emission units (for example, EL elements) with different emission aging characteristics, which can obtain good emission conditions even after a certain usage time has elapsed. A method of designing the brightness and a program for designing the brightness of the emitter, an electrooptical device and an electric device are also provided. Initial brightnesses of the emission units are set such that a skew of emission lifetime between the emission units is within 20%.