Organic electroluminescent elements for stable blue electroluminescent devices
AssigneeEastman Kodak Company
InventorsJianmin Shi, Chin H. Chen, Kevin P. Klubek
Life of this patent
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Abstract
An organic EL device including an anode, a cathode, and an organic electroluminescent element between the anode and the cathode; the organic electroluminescent element includes an organic material or a mixture thereof of 9,10-bis(3'5'-diaryl)phenyl anthracene derivatives.
Claims9
An organic EL device comprising an anode, a cathode, and an organic electroluminescent element between the anode and the cathode;
- the organic electroluminescent element includes an organic material or a mixture thereof having the structure:
- ##STR19## wherein:
- substituents R.sup.1, R.sup.2, R.sup.3, and R.sup.4 are each individually selected from the following groups consisting of:
- Group 1:
- hydrogen, or alkyl of from 1 to 24 carbon atoms;
- Group 2:
- aryl or substituted aryl of from 5 to 20 carbon atoms;
- Group 3:
- carbon atoms necessary to complete a fused aromatic ring of naphthyl, anthracenyl, pyrenyl, or perylenyl;
- Group 4:
- heteroaryl or substituted heteroaryl of from 5 to 24 carbon atoms;
- Group 5:
- a fused heteroaromatic ring of furyl, thienyl, pyridyl, or quinolinyl;
- Group 6:
- alkoxyl, amino, alkyl amino, or aryl amino group of from 1 to 24 carbon atoms;
- and
- Group 7:
- fluorine, chlorine, bromine or cyano.
An organic EL device comprising an anode, a cathode, and an organic electroluminescent element between the anode and the cathode;
- the organic electroluminescent element includes an organic material or a mixture thereof having the structure:
- ##STR20## wherein:
- substituents R.sup.1, R.sup.2, R.sup.3, and R.sup.4 are each individually selected from the group consisting of hydrogen, or alkyl of from 1 to 24 carbon atoms.
An organic EL device comprising an anode, a cathode, and an organic electroluminescent element between the anode and the cathode;
- the organic electroluminescent element includes an organic material or a mixture thereof having the structure:
- ##STR21## wherein:
- substituents R.sup.1, R.sup.2, R.sup.3, and R.sup.4 are each individually selected from the group consisting of aryl or substituted aryl of from 5 to 20 carbon atoms.
An organic EL device comprising an anode, a cathode, and an organic electroluminescent element between the anode and the cathode;
- the organic electroluminescent element includes an organic material or a mixture thereof having the structure:
- ##STR22## wherein:
- substituents R.sup.1, R.sup.2, R.sup.3, and R.sup.4 are each individually selected to complete a fused aromatic ring.
An organic EL device comprising an anode, a cathode, and an organic electroluminescent element between the anode and the cathode;
- the organic electroluminescent element includes an organic material or a mixture thereof having the structure:
- ##STR23## wherein:
- substituents R.sup.1, R.sup.2, R.sup.3, and R.sup.4 are each individually selected from the group consisting of heteoaryl or substituted heteroaryl of from 5 to 24 carbon atoms necessary to complete a fused aromatic ring.
An organic EL device comprising an anode, a cathode, and an organic electroluminescent element between the anode and the cathode;
- the organic electroluminescent element includes an organic material or a mixture thereof having the structure:
- ##STR24## wherein:
- substituents R.sup.1, R.sup.2, R.sup.3, and R.sup.4 are each individually selected from the group consisting of alkoxyl, amino, alkyl amino, or an arylamino group of from 1 to 24 carbon atoms.
An organic EL device comprising an anode, a cathode, and an organic electroluminescent element between the anode and the cathode;
- the organic electroluminescent element includes an organic material or a mixture thereof having the structure:
- ##STR25## wherein:
- substituents R.sup.1, R.sup.2, R.sup.3, and R.sup.4 are each individually selected from the group consisting of fluorine, chlorine, bromine or cyano groups.
Dependencies are inferred from the claim text.