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

摘要

The invention provides an emitter comprising 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, and furthermore a method of designing the brightness and a program for designing the brightness of the emitter, an electrooptical device and an electric device. ;An emitter comprises a plurality of types of emission units with different emission aging characteristics, and initial brightnesses of the emission units are set such that a skew of emission lifetime between the emission units is within 20%.