Abstract

An display electrode with high optical transmittance and low electric resistivity is required for display applications. Indium Tin Oxide (ITO) has been widely used as an electrode material in flat panel displays due to its stable properties in optics and electrics. ITO was discovered in 1954 and used for display applications in 1975. The fabrication of ITO films is now a mature technique for displays such as liquid crystal display (LCD) and plasma display panel (PDP). However the properties of the traditional ITO are not suitable for organic light emitting diode (OLED) applications. This is because superior ITO surface roughness and high surface work function are required to achieve high luminence efficiency and long life-time OLED devices. This article presents the recent development of ITO film processing for OLED applications.

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