Organic Light Emitting Diode Display Driver Circuit Study

Organic light-emitting display, also known as organic light-emitting diodes or organi c light-emitting display (OLED), is a new type of display technology developed since the mid-20th century. The principle is the load through the injection of organic semic onductor thin films produced, then the light-emitting compound.OLED has many advantages such as the all-solid-state, active light-emitting high-bri ghtness, high contrast, ultra-thin, low-cost, low power consumption, no angle constraint s, operating temperature range and many other advantages. It is considered the most li kely alternative to liquid crystal display technology. In recent years, driven by the stro ng application context, OLED technology has made rapid development, such as brightn ess, luminous efficiency and other aspects of life. They are close to practical applicati ons.In this paper, introduced the main structure and the working principle of organicligh t-emitting display devices and introduced the two main types of organic light-emitting display driver technology. The active driver and passive driver, as well as the mainpri nciple of the main characteristics of each. Based on organic light-emitting diode princi ple and use the decoder modules and FPGA control module to design dynamic images OLED driver circuit.It also describes how to use the FPGA Circuit OLED video display control method and analysis the circuit in the role of each module and the work of the entire circuit process. FPGA uses VHDL hardware description language to design control circuits, a nd ultimately to achieve 256 gray-scale display of the full-color OLED display.Finally, work on the subject concluded that an analysis of the deficiencies that exist in the future prospect of the work done.