Patent ID: 7804242
Filing Date: 2010-09-28
Classification: H01L

Abstract:
1. An active matrix electroluminescence device, comprising: a substrate including a thin film transistor and a pixel area defined thereon; first insulating layer formed on the substrate and the thin film transistor; a first electrode formed on the first insulating layer of the pixel area; a second electrode formed on the first insulating layer between the first electrodes, wherein the second electrode is formed in a stripe type between adjacent pixel areas and is formed on the first insulating layer which is located above the thin film transistor and at least partially overlaps the thin film transistor, wherein the second electrode overlapping the thin film transistor is formed at the same height and on the same layer as the first electrode; a second insulating layer formed on a predetermined area on the first electrode and the second electrode, wherein the second insulating layer includes a trench formed along a direction of the second electrode; an emission layer formed on each of the first electrodes; and a third electrode formed on the emission layer and electrically connected to the second electrode through the trench of the second insulating layer, wherein the second electrode has a resistance lower than the third electrode; wherein the third electrode includes a metal common electrode and a transparent common electrode for transmitting light from the emission layer, wherein the metal common electrode transmitting light is formed to serially deposited a lithium fluoride (LiF) layer having a thickness of about 0.5 nanometers (nm) and an aluminum (Al) layer of about 1 nanometer (nm) and the transparent common electrode is formed of a transparent conductive material, wherein the emission layer is formed of a hole injection layer, a hole transport layer, an organic electroluminous layer, an electron transport layer, and an electron injection layer serially deposited on one another, wherein the hole injection layer, the hole transport layer, the electron transport layer and the electron injection layer are formed in a stripe type between adjacent second electrodes of the stripe type so that the hole injection layer, the hole transport layer, the electron transport layer and the electron injection layer are not formed on the second electrode, wherein the organic electroluminous layer is formed only in the pixel area different from the stripe type, wherein the hole transport layer directly contacts with the electron transport layer on the second insulating layer.