In this work, the emission uniformity from the pixels in an OLED display fabricated by ink jet printing was studied. First, the process parameters such as vacuum dry speed and vacuum dry temperature were controlled. Second, a new pixel fusion design was used to improve uniformity. The pixel resolution in our study was 167ppi, which met the requirement for automotive vehicle application. We demonstrated that the film quality of produced from ink jet printing can meet the demand of commercial products.

To realize a middle size OLED panel (10~20 inch) manufactured by ink jet printing process. A high resolution OLED panel is needed. Because of high resolution, the top emission OLED is requirement to increase the pixel aperture ratio, lifetime and color gamut. The pixel resolution in our study is 167ppi, which meets the requirement for automotive vehicle application. We discuss the film quality and picture quality from ink jet printing process to address which pixel arrangement design can meet the demand of products. Finally, a 12 inch AMOLED panel is realized in our study.