Here are some details about the 1.3 inch oled display arduino 4 Pin IIC Interface:

OLED (Organic Light-Emitting Diode) is a self-light-emitting technology composed of a thin, multi-layered organic film placed between an anode and cathode. In contrast to LCD technology, OLED does not require a backlight. 1.3 inch oled display arduino possesses high application potential for virtually all types of displays and is regarded as the ultimate technology for the next generation of flat-panel displays.

OLED basic structure consists of organic materials positioned between the cathode and the anode, which is composed of electric conductive transparent Indium Tin Oxide (ITO). The organic materials compose a multi-layered thin film, which includes the Hole Transporting Layer (HTL), Emission Layer (EML), and the Electron Transporting Layer (ETL).

By applying the appropriate electric voltage, holes, and electrons are injected into the EML from the anode and the cathode, respectively. The holes and electrons combine inside the EML to form excitons, after which electro-luminescence occurs. The transfer material, emission layer material, and choice of electrode are the key factors that determine the quality of OLED components.