Thermal annealing of a polymer light-emitting diode (PLED) is shown to result in a remarkable improvement in the long-term stability of the device. The annealing for such a PLED has to be layer-specific in that the annealing should be carried out for the layer with the lowest glass transition temperature (Tg) to harvest the benefits of annealing. Annealing of this key layer, which is usually the emitting layer, can enhance the thermal stability of the device. The best half-life is obtained at an annealing temperature above the Tg of emitting polymer. It is shown that the annealing of the emitting polymer layer results in a more than an order of magnitude increase in the half-life, in spite of a decrease in the efficiency of the device as the annealing temperature increases.

The TADF OLEDs based on these silane-core host materials showed a maximum EQE of up to 18.8%.

Therapeutic bronchoscopy is widely employed as an effective first-line treatment for patients with central airway obstructions. Airway fires during rigid bronchoscopy are rare, but can have potentially devastating consequences. Pulmonologist and anesthesiologist undertaking this type of procedure should be aware of this serious problem and be familiar with measures to avoid this possibly fatal complication. We report the case of a 24-year-old patient with a silicone stent who experienced an electrocautery-induced airway fire during rigid bronchoscopy.

We have developed roll printing process for low cost TFT LCD fabrication. Pattern position accuracy which is the most important issue for successful printing process could be improved by remodeling the blanket structure and the physical property of PDMS. Through improving printing pattern accuracy, we were able to print all layers of TFT and CF on substrates and a 15 inch XGA TFT LCD panel adopting TN mode was successfully fabricated.

Recently, breakthrough technology for the low cost process in TFT‐LCD and new process development for integrating it with flexible display fabrication has been studied importantly. As a way of achieving this goal, we have investigated roll printing process with etch‐resist material as non‐photolithographic patterning technique. We characterized the properties of patterns formed with roll printing process, derived the design concepts, and found the best way to fabricate the panel by this process. Thus, we were made the prototype of 15″ XGA TFT‐LCD panel by using all printing processes.