IP Library › Granted Patent US 7,709,101
Granted Patent B2
US 7,709,101 · App. 11/028,734 · Granted May 4, 2010

Organic electroluminescence device

View Patent ↗
Loading inventors, assignments & file history…
Monitor This Case
Get email alerts when status or documents change.
Order Certified Copies
Most orders are placed with the USPTO same day — all within 24 business hours.
Order via The Patent Place →
Pre-filled with this patent's details
Quick Facts
Patent No.
US 7,709,101
App. No.
11/028,734
Granted
May 4, 2010
Kind
B2
Abstract

An organic electroluminescence device is disclosed which comprises an emitting layer and a hole blocking layer disposed between an electron injecting electrode (cathode) and a hole injecting electrode (anode), the material for the hole blocking layer being expressed by the following chemical formula 1: The organic electroluminescence device can improve the luminescence and driving characteristics.

Claims (6)

1. An organic electroluminescence device, comprising an emitting layer and a hole blocking layer disposed between an electron injecting electrode (cathode) and a hole injecting electrode (anode), the material for the hole blocking layer disposed between the electron injecting electrode (cathode) and the emitting layer being expressed by the following chemical formula 1:

wherein A is selected from the group consisting of pyridyl, quinoline, and isoquinoline, all of which are substituted with a substituent, and wherein the substituent is selected from the group consisting of alkyl, aryl, alkoxy, halogen, and cyano.

2. The device of claim 1 , where the substituent is selected from the group consisting of methyl, ethyl, isopropyl, phenyl, naphthyl, methoxy, ethoxy, fluoro, chloro, and cyano.

3. An organic electroluminescence device, comprising an emitting layer and a hole blocking layer disposed between an electron injecting electrode (cathode) and a hole injecting electrode (anode), the material for the hole blocking layer disposed between the electron injecting electrode (cathode) and the emitting layer being expressed by one of the following chemical formulae 3:

4. An organic electroluminescence device comprising an emitting layer and a hole blocking layer disposed between an electron injecting electrode (cathode) and a hole injecting electrode (anode), the material for the hole blocking layer disposed between the electron injecting electrode (cathode) and the emitting layer being expressed by the following chemical formula 1:

wherein A is selected from the group consisting of naphthyl, which is substituted with a substituent, and wherein the substituent is selected from the group consisting of alkyl, aryl, alkoxy, halogen, and cyano.