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US 6,746,784 B2Granted
Organic electroluminescent device
AssigneeSamsung Electronics Co., Ltd.
InventorsSatoru Toguchi, Hitoshi Ishikawa, Hiroshi Tada, Atsushi Oda
Life of this patent
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Abstract
An organic electroluminescent device comprising one or more organic thin film layers, at least one of the organic thin film layers containing a compound having a cyclohexylidenemethine group. This device has improved light-emitting properties such as luminance and luminous efficiencies, and no limitations on film deposition method in fabrication processes.
Claims19
An organic electroluminescent device comprising:
- an anode;
- a cathode;
- and
- one or more organic thin film layers including a light-emitting layer sandwiched between said anode and said cathode,
- wherein at least one of said organic thin film layers contains, either singly or as a mixture, a compound represented by the following general formula [A]:
- wherein
- Ar1 represents a substituted or unsubstituted aromatic hydrocarbon group having 5 to 42 carbon atoms, or a substituted or unsubstituted aromatic heterocyclic group having 4 to 42 carbon atoms;
- each of Ar2 to Ar5 independently represents a substituted or unsubstituted aromatic hydrocarbon group having 6 to 20 carbon atoms, or a substituted or unsubstituted aromatic heterocyclic group having 6 to 20 carbon atoms;
- each of X1 and X2 independently represents a divalent linking group;
- and
- each of R1 to R20 independently represents a hydrogen atom, a halogen atom, a substituted or unsubstituted amino group, a substituted or unsubstituted alkyl group, a substituted or unsubstituted alkenyl group, a substituted or unsubstituted cycloalkyl group, a substituted or unsubstituted alkoxy group, a substituted or unsubstituted aromatic hydrocarbon group, a substituted or unsubstituted aromatic heterocyclic group, a substituted or unsubstituted aralkyl group, a substituted or unsubstituted aryloxy group, or a substituted or unsubstituted alkoxycarbonyl group;
- any two of R1 to R10 and R11 to R20 may form a ring;
- Ar2 and Ar3 or Ar4 and Ar5 may be bonded to each other to form a ring.
10 more elements
An organic electroluminescent device comprising:
- an anode;
- a cathode;
- and
- one or more organic thin film layers including a light-emitting layer sandwiched between said anode and said cathode,
- wherein at least one of said organic thin film layers contains, either singly or as a mixture, a compound represented by the following general formula [B]:
- wherein
- Ar1 represents a substituted or unsubstituted aromatic hydrocarbon group having 5 to 42 carbon atoms, or a substituted or unsubstituted aromatic heterocyclic group having 4 to 42 carbon atoms;
- each of Ar2 to Ar5 independently represents a substituted or unsubstituted aromatic hydrocarbon group having 6 to 20 carbon atoms, or a substituted or unsubstituted aromatic heterocyclic group having 6 to 20 carbon atoms;
- and
- each of R21 to R76 independently represents a hydrogen atom, a halogen atom, a substituted or unsubstituted amino group, a substituted or unsubstituted alkyl group, a substituted or unsubstituted alkenyl group, a substituted or unsubstituted cycloalkyl group, a substituted or unsubstituted alkoxy group, a substituted or unsubstituted aromatic hydrocarbon group, a substituted or unsubstituted aromatic heterocyclic group, a substituted or unsubstituted aralkyl group, a substituted or unsubstituted aryloxy group, or a substituted or unsubstituted alkoxycarbonyl group;
- any two of R21 to R30, R31 to R40, R41 to R50, R51 to R60, and R61 to R76 may form a ring;
- and that Ar2 and Ar3 or Ar4 and Ar5 may be bonded to each other to form a ring.
9 more elements
An organic electroluminescent device comprising:
- an anode;
- a cathode;
- and
- one or more organic thin film layers including a light-emitting layer sandwiched between said anode and said cathode,
- wherein at least one of said organic thin film layers contains, either singly or as a mixture a compound represented by the following general formula [C]:
- wherein
- each of R77 to R116 independently represents a hydrogen atom, a halogen atom, a substituted or unsubstituted amino group, a substituted or unsubstituted alkyl group, a substituted or unsubstituted alkenyl group, a substituted or unsubstituted cycloalkyl group, a substituted or unsubstituted alkoxy group, a substituted or unsubstituted aromatic hydrocarbon group, a substituted or unsubstituted aromatic heterocyclic group, a substituted or unsubstituted aralkyl group, a substituted or unsubstituted aryloxy group, or a substituted or unsubstituted alkoxycarbonyl group;
- any two of R77 to R86, R87 to R96, R97 to R106 and R107 to R116 may form a ring;
- each of R117 to R132 independently represents a hydrogen atom, a halogen atom, a hydroxyl group, a substituted or unsubstituted amino group, intro group, cyano group, a substituted or unsubstituted alkyl group, a substituted or unsubstituted alkenyl group, a substituted or unsubstituted styryl group, a substituted or unsubstituted cycloalkyl group, a substituted or unsubstituted alkoxy group, a substituted or unsubstituted aromatic hydrocarbon group, a substituted or unsubstituted aromatic heterocyclic group, a substituted or unsubstituted aralkyl group, a substituted or unsubstituted aryloxy group, a substituted or unsubstituted alkoxycarbonyl group, or carboxyl group;
- any two of R117 to R132 may form a ring;
- and
- X3 represents a divalent linking group.
9 more elements
An organic electroluminescent device comprising:
- an anode;
- a cathode;
- and
- one or more organic thin film layers including a light-emitting layer sandwiched between said anode and said cathode,
- wherein at least one of said organic thin film layers contains, either singly or as a mixture, a compound represented by the following general formula [D]:
- wherein
- each of Ar6 to Ar8 independently represents a substituted or unsubstituted aromatic hydrocarbon group having 5 to 42 carbon atoms, or a substituted or unsubstituted aromatic heterocyclic group having 4 to 42 carbon atoms;
- Ar6 to Ar8 may be bonded to each other to form a ring;
- each of X4 and X6 independently represents a divalent linking group;
- each of R133 to R162 independently represents a hydrogen atom, a halogen atom, a substituted or unsubstituted alkyl group, a substituted or unsubstituted alkenyl group, or a substituted or unsubstituted alkoxy group;
- any two of R133 to R142, R143 to R152 and R153 to R162 may form a ring;
- l, m and n are each independently 0 or 1;
- and
- l plus m plus n is an integer between 1 and 3, both inclusive.
11 more elements
An organic electroluminescent device comprising:
- an anode;
- a cathode;
- and
- one or more organic thin film layers including a light-emitting layer sandwiched between said anode and said cathode,
- wherein at least one of said organic thin film layers contains, either singly or as a mixture, a compound represented by the following general formula [E]:
- wherein
- each of Ar9 to Ar15 independently represents a substituted or unsubstituted aromatic hydrocarbon group having 5 to 42 carbon atoms, or a substituted or unsubstituted aromatic heterocyclic group having 4 to 42 carbon atoms;
- Ar10 and Ar11, Ar12 and Ar13, and Ar14 and Ar15 maybe bonded to each other to form a ring;
- each of X7 and X12 independently represents a divalent linking group;
- each of R163 to R192 independently represents a hydrogen atom, a halogen atom, a substituted or unsubstituted alkyl group, a substituted or unsubstituted alkenyl group, or a substituted or unsubstituted alkoxy group;
- any two of R163 to R172, R173 to R182 and R183 to R192 may form a ring;
- o, p and q are each independently 0 or 1;
- and
- o plus p plus q is an integer between 1 and 3, both inclusive.
11 more elements
An organic electroluminescent device comprising:
- an anode;
- a cathode;
- and
- one or more organic thin film layers including a light-emitting layer sandwiched between said anode and said cathode,
- wherein at least one of said organic thin film layers contains, either singly or as a mixture, a compound represented by the following general formula [F]:
- wherein
- each of Ar16 to Ar24 independently represents a substituted or unsubstituted aromatic hydrocarbon group having 5 to 42 carbon atoms, or a substituted or unsubstituted aromatic heterocyclic group having 4 to 42 carbon atoms;
- Ar16 and Ar17, Ar18 and Ar19, Ar20 and Ar21, and Ar22 and Ar23 may be bonded to each other to form a ring;
- each of X13 and X20 independently represents a divalent linking group;
- each of R193 to R232 independently represents a hydrogen atom, a halogen atom, a substituted or unsubstituted alkyl group, a substituted or unsubstituted alkenyl group, or a substituted or unsubstituted alkoxy group;
- any two of R193 to R202, R203 to R212, R213 to R222 and R223 to R232 may form a ring;
- r, s, t and u are each independently 0 or 1;
- and
- r plus s plus t plus u is an integer between 1 and 4, both inclusive.
11 more elements
Dependencies are inferred from the claim text.