The Investigation on Color Purity of Blue Organic Light-Emitting Diodes (BOLED) by Hole-Blocking Layer

Table 1

Performance of devices A–C.

	Device A	Device B	Device C
Turn-on voltage (V)	9.5	5.5	6.2
Luminance (cd/m^2)	68	1350	1830
Luminance efficiency (cd/A)	1.15	0.8	1.28
Wavelength peak (nm)	448	444	436
FWHM (nm)	68	65	65
CIE ± Δ𝑥,𝑦	(0.010, 0.005)	(0.000, 0.004)	(0.001, 0.008)