Patent ID: 6114055
Filing Date: 2000-09-05
Classification: H01L,Y10S

Abstract:
An organic medium for use in an electroluminescent display device consisting of a single layer of a continuous organic medium having a formula of A.sub.x B.sub.y having a thickness defined by a first edge and an oppositely opposed spaced apart second edge, where A is a component capable of transporting electrons, B is a component capable of transporting holes, x represents the content of the A component in the medium A.sub.x B.sub.y with a value ranging from a fraction of a percent at the first edge of the medium having a formula of A.sub.x B.sub.y to 100% at the second edge of the medium having a formula of A.sub.x B.sub.y, and y represents the content of the B component in the medium having a formula of A.sub.x B.sub.y, with a value ranging from a fraction of a percent at the second edge of the medium A.sub.x B.sub.y to 100% at the first edge of the medium having a formula of A.sub.x B.sub.y, and rubrene or a rubrene derivative incorporated in the continuous organic medium having a formula of A.sub.x B.sub.y.