Figure 4
Optimized fabric-based OLED: (a) Schematic illustration of the optimized fabric-based, encapsulated OLEDs. (b,c) Images of emitting cells of the fabric-based, encapsulated OLEDs (b) without protective layers, (c) with protective layers. (d) Bending image of the optimized fabric-based device. (e,f) Ranking of wearable devices in terms of (e) the luminance and (f) the current efficiency. (g) J-V-L characteristics of the fabric-based OLEDs with and without encapsulation. (h) Current efficiency of the fabric-based OLEDs with and without encapsulation. (i) Deviations of the electrical-optical performance over time. The fabricated devices were placed in a constant temperature and humidity chamber (30 °C, R.H. 90%).
