In Single-color OLED devices or displays, also called monochrome OLEDS, these organic
layers are not patterned but are formed as continuous layers. In multicolor OLED devices or
displays or in full-color OLED displays, an organic hole-injecting and hole transporting layer
is formed as a continuous layer over and between the first electrodes. A pattern of one or
more laterally adjacent organic light-emitting layers are then formed over the continuous
hole-injecting and hole transporting layer. This pattern, and the organic materials used to …