Organic electroluminescent device using a mixture of high and low molecular light-emitting substance as a light-emitting substance
AssigneeSamsung SDI Co., Ltd.
InventorsByung Doo Chin, Min Chul Suh, Mu Hyun Kim, Seong Taek Lee, Jang Hyuk Kwon
Life of this patent
Estimating the term…
Abstract
An organic EL device in which light-emitting efficiency, color purity and laser induced thermal imaging characteristics are improved by providing with an organic EL device comprising a first electrode, a hole transport layer, a light-emitting layer, and a second electrode, wherein the light-emitting layer uses a mixture of an optically active low molecular electric charge transport material and a high molecular light-emitting substance.
Claims16
An organic EL device comprising:
- a first electrode;
- a hole transport layer;
- a light-emitting layer;
- and
- a second electrode;
- wherein the light-emitting layer uses a mixture of an optically active low molecular electric charge transport material and a high molecular light-emitting substance.
Donor films used as a light emitting substance, the donor films comprising:
- high molecular light-emitting material;
- and
- low molecular light-emitting material,
- wherein the high molecular light-emitting material is used together with the low molecular light-emitting material having a relatively low adhesive force between the films, and a high molecular matrix preventing phase separation between a high molecular material and the low molecular material to enable laser induced thermal imaging.
An organic EL device comprising:
- a high molecular light-emitting layer formed by using a mixture of high and low molecular light-emitting substances.
Dependencies are inferred from the claim text.