This paper presents recent research and development effort in realizing and perfecting the infrared upconversion device, and mainly focuses on the design optimization, device integration and internal semiconductor physics of different optical up-conversion device structures. The upconversion idea relies on the integration of a photodetector and an organic light-emitting device(OLED). The infrared is first absorbed by photodetector part, and then the photocurrent would drive the OLED to emit visible light, which functions as infrared-to-visible upconversion. This research enhanced the application of OLED in infrared imaging.