OLED Display Module

Summary

This chapter first focuses on basic display design of OLED display modules and related characteristics. It then compares the components that are necessary for production of liquid crystal display (LCD) and OLED display modules. To design a high‐quality display, many factors must be considered. Designers need to understand how intended specifications, such as luminance, color reproduction, and luminance uniformity, can be achieved through display design. Radiometric values weighted by physiological functions related to the wavelength sensitivity of the eye (spectral luminous efficacy) are called photometric quantities. Luminous intensity, luminance, and illuminance are the most well‐known photometric quantity units. The chapter then focuses on the designing techniques of two forms of OLED displays: passive‐matrix displays and active‐matrix displays. Active‐matrix driving is necessary when larger or higher‐resolution displays are needed. To control the luminance of an OLED device, thin‐film transistor (TFT) needs to be serially connected to OLED.