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US 7,479,330 B2Granted
Anthracene derivatives for organic electroluminescent device
AssigneeAu Optronics Corporation
InventorsChen-Ping Yu, Chia-Liang Tai
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Abstract
In an OLED having an electron transport layer and a light emitting layer, at least one of these layers contains an anthracene derivative, wherein at least one of the substituents on the anthracene compound has a tetra-substitution center of either C—SP3 or Si. The anthracene derivative can be used as dopant or host material in the light-emitting layer.
Claims20
An organic light-emitting device, comprising:
- a cathode;
- an anode;
- and
- a layer structure disposed between the cathode and anode, the layer structure comprising:
- a hole source adjacent to the anode;
- and
- a layer sub-structure disposed between the hole source and the cathode, the layer sub-structure comprising a first further layer and a second further layer, the first further layer comprising an electron source adjacent to the cathode;
- and the second further layer comprising a light emitting layer disposed between the electron source and the hole source, wherein at least one of the two further layers contains at least one of anthracene derivatives, the anthracene derivatives having a structure:
- wherein
- R1, R2, R3, R4 are each individually selected from the group consisting of alkyl (C1-12) and aryl (C6-20);
- R5, R6 are each selected from the group consisting of methyl and F;
- X═Si;
- L is a number of bonds, equal to 1;
- and
- n, m are positive integers ranged from 0 to 4.
12 more elements
An organic light-emitting device, comprising:
- a cathode;
- an anode;
- and
- a layer structure disposed between the cathode and anode, the layer structure comprising:
- a hole source adjacent to the anode;
- and
- a layer sub-structure disposed between the hole source and the cathode, the layer sub-structure comprising a first further layer and a second further layer, the first further layer comprising an electron source adjacent to the cathode;
- and the second further layer comprising a light emitting layer disposed between the electron source and the hole source, wherein at least one of the two further layers contains at least one of anthracene derivatives, the anthracene derivatives having a structure:
- wherein
- R1, R2, R3, R4 are each individually selected from the group consisting of alkvl (C1-12)and aryl (C6-20);
- R5, R6 are each selected from the group consisting of methyl and F;
- X is selected from the group consisting of C and Si;
- L is a number of bonds, selected from 0 and 1;
- and
- n, m are positive integers ranged from 0 to 4,
- wherein
- the light emitting layer is substantially made of ADN doped with DSA;
- and
- the electron source is substantially made of said at least one of anthracene derivatives doped with CsF.
16 more elements
An organic light-emitting device, comprising:
- a cathode;
- an anode;
- and
- a layer structure disposed between the cathode and anode, the layer structure comprising:
- a hole source adjacent to the anode;
- an electron source adjacent to the cathode;
- and
- a light emitting layer disposed between the electron source and the hole source, wherein the light emitting layer contains at least one of anthracene derivatives, the anthracene derivatives having a structure:
- wherein
- R1, R2, R3, R4 are each individually selected from the group consisting of alkyl (C1-12) and aryl (C6-20);
- R5, R6 are each selected from the group consisting of methyl and F;
- X═Si;
- L is a number of bonds, equal to 1;
- and
- n, m are positive integers ranged from 0 to 4.
12 more elements
An organic light-emitting device, comprising:
- a cathode;
- an anode;
- and
- a layer structure disposed between the cathode and anode, the layer structure comprising:
- a hole source adjacent to the anode;
- an electron source adjacent to the cathode;
- and
- a light-emitting layer disposed between the electron source and the hole source, wherein the electron source contains at least one of anthracene derivatives, the anthracene derivatives having a structure:
- wherein
- R1, R2, R3, R4 are each individually selected from the group consisting of alkyl (C1-12) and aryl (C6-20);
- R5, R6 are each selected from the group consisting of methyl and F;
- X═Si;
- L is a number of bonds, equal to 1;
- and
- n, m are positive integers ranged from 0 to 4.
12 more elements
An organic light-emitting device, comprising:
- a cathode;
- an anode;
- and
- a layer structure disposed between the cathode and anode, the layer structure comprising:
- a hole source adjacent to the anode;
- an electron source adjacent to the cathode;
- and
- a light-emitting layer disposed between the electron source and the hole source, wherein the electron source contains at least one of anthracene derivatives, the anthracene derivatives having a structure:
- wherein
- R1, R2, R3, R4 are each individually selected from the group consisting of alkyl (C1-12) and aryl (C6-20);
- R5, R6 are each selected from the group consisting of methyl and F;
- X is selected from the group consisting of C and Si;
- L is a number of bonds, selected from 0 and 1;
- and
- n, m are positive integers ranged from 0 to 4,
- wherein the electron source comprises an electron transport layer, and said one of anthracene derivatives is used in the electron transport layer as a host material doped with a luminescent dopant.
13 more elements
Dependencies are inferred from the claim text.