Patent ID: 8502207
Filing Date: 2013-08-06
Classification: H01L

Abstract:
1. An organic light emitting diode structure comprising: a first electrode; a hole injection layer disposed on the first electrode; a hole transport layer disposed on the hole injection layer, wherein the hole transport layer is further used as a first primary color light emitting unit; a second primary color light emitting unit disposed on a part of the hole transport layer; a third primary color light emitting unit disposed on a part of the hole transport layer and disposed adjacent to the second primary color light emitting unit; an electron transport layer disposed on the second primary color light emitting unit, the third primary color light emitting unit and a part of the hole transport layer; an electron injection layer disposed on the electron transport layer; and a second electrode disposed on the electron injection layer; wherein the second primary color light emitting unit is disposed on and makes physical contact with a first portion of the hole transport layer, wherein the third primary color emitting unit is disposed on and makes physical contact with a second portion of the hole transport layer that is different from the first portion of the hole transport layer, and the third primary color light emitting unit is adjacent to the secondary primary color light emitting unit in a horizontally side-by-side manner, wherein a third portion of the hole transport layer which is different from the first and second portions of the hole transport layer is exposed and not covered by nor vertically aligned with the second and third primary color light emitting units, and wherein the electron transport layer is disposed on and makes physical contact with the second and third primary color light emitting units and is disposed on and makes physical contact with the third portion of the hole transport layer.