Fig. 3: Correlation between the uncertainty of efficiency measurements using a luminance meter and luminance non-uniformity of the QLEDs.
From: On the accurate characterization of quantum-dot light-emitting diodes for display applications
Efficiency measurements were performed on 27 QLEDs with different degrees of luminance uniformity by using a luminance meter. The uncertainty of efficiency measurements for each device is determined from the relative standard deviations of 16 EQELM values obtained at different positions, as shown in Fig. 2d–f.
