Hejing zhang, currently serving as Deputy Director of the Array Technology Development Department at the R&D Center of ‌Chongqing HKC Optoelectronics technology Co., Ltd. (Chongqing Advanced Photoelectric Display Technology Research Institute).‌ My primary expertise lies in the research and development of array technologies and display-related devices. To date, I have authored ‌20 U.S. granted patents‌ through my contributions to the field.