Universal Display Corp. engages in research, development, and commercialization of organic light emitting diode, technologies, and materials. The company is headquartered in Trenton, New Jersey and currently employs 265 full-time employees. The firm also supplies its OLED materials to manufacturers of OLED displays and lighting products for evaluation and for use in product development and for pre-commercial activities, and it also provides technical assistance and support to these manufacturers. The firm has produced and sold phosphorescent emitter materials that produce red, yellow, green and light-blue light, which are combined in various ways for the display and lighting markets. The company has also developed host materials for the emissive layer. The firm is a supplier of phosphorescent emitter materials to OLED product manufacturers. Phosphorescent OLEDs utilize specialized materials and device structures that allow OLEDs to emit light through a process known as phosphorescence.