公开(公告)号：US09871219B2

公开(公告)日：2018-01-16

申请号：US15474184

申请日：2017-03-30

Applicant: Universal Display Corporation

Inventor： Yeh-Jiun Tung ,  Michael S. Weaver ,  Michael Hack ,  James R. Esler

IPC: H01L51/50 ,  H01L51/00

CPC classification number: H01L51/5044 ,  C09K11/06 ,  C09K2211/1011 ,  H01L27/3209 ,  H01L51/0052 ,  H01L51/0054 ,  H01L51/0058 ,  H01L51/006 ,  H01L51/0071 ,  H01L51/0072 ,  H01L51/0081 ,  H01L51/0085 ,  H01L51/5004 ,  H01L51/5016 ,  H01L51/504 ,  H01L51/5056 ,  H01L51/5278 ,  H01L2251/5376 ,  H01L2251/552 ,  H01L2251/558 ,  H05B33/14

Abstract: The present invention provides an emissive region in organic light emitting devices having a combined emission from at least two emissive materials, a fluorescent blue emissive material and a phosphorescent emissive material. The emissive region may further comprise additional fluorescent or phosphorescent emissive materials. Preferably, the emissive region has three different emissive materials—a red emissive material, a green emissive material and a blue emissive material. Organic light emitting devices incorporating the emissive region provides a high color-stability of the light emission over a wide range of currents or luminances.

公开(公告)号：US09647227B2

公开(公告)日：2017-05-09

申请号：US14725065

申请日：2015-05-29

Applicant: Universal Display Corporation

Inventor： Yeh-Jiun Tung ,  Michael S. Weaver ,  Michael Hack ,  James R. Esler

IPC: H01L51/54 ,  H01L51/50 ,  C09K11/06 ,  H01L51/00 ,  H05B33/14 ,  H01L51/52 ,  H01L27/32

CPC classification number: H01L51/5044 ,  C09K11/06 ,  C09K2211/1011 ,  H01L27/3209 ,  H01L51/0052 ,  H01L51/0054 ,  H01L51/0058 ,  H01L51/006 ,  H01L51/0071 ,  H01L51/0072 ,  H01L51/0081 ,  H01L51/0085 ,  H01L51/5004 ,  H01L51/5016 ,  H01L51/504 ,  H01L51/5056 ,  H01L51/5278 ,  H01L2251/5376 ,  H01L2251/552 ,  H01L2251/558 ,  H05B33/14

Abstract: The present invention provides an emissive region in organic light emitting devices having a combined emission from at least two emissive materials, a fluorescent blue emissive material and a phosphorescent emissive material. The emissive region may further comprise additional fluorescent or phosphorescent emissive materials. Preferably, the emissive region has three different emissive materials—a red emissive material, a green emissive material and a blue emissive material. Organic light emitting devices incorporating the emissive region provides a high color-stability of the light emission over a wide range of currents or luminances.