Optical display is a research area that focuses on developing technologies and techniques for displaying visual information using light. This includes technologies such as liquid crystal displays (LCDs), organic light-emitting diodes (OLEDs), and other types of display technologies that use light to create images and text. Researchers in this field work on improving the resolution, color accuracy, brightness, and energy efficiency of optical display technologies, as well as developing new forms of displays such as augmented reality and virtual reality displays. Optical displays are used in a wide range of applications, including televisions, computer monitors, smartphones, and wearable devices.