P‐230: <i>Late‐News Poster:</i> Study on the Impact of Static Electricity on LTPS TFTs and Its Mechanism in Flexible OLED Devices Manufacturing Process

In the process of flexible organic light‐emitting diodes (OLEDs) fabrication, the generation of static electricity is a very common phenomenon. In this study, a static electric field was applied to the back of OLED devices to observe changes in device brightness and measure the electrical characteristics of TFTs. The experimental results show that when a static electric field is applied to the back of the device, the brightness increases (with a negative charge) or decreases (with a positive charge). After the static electric field is removed, the brightness immediately returns to a level close to its initial state. Furthermore, the above phenomena are consistent with the effects of applying voltage to the back of LTPS TFTs. This paper demonstrates the impact of static electricity on OLED devices and reveals its underlying mechanisms through a study of TFT characteristic changes under a static electric field.