This invention provides an organic EL material useful for the emissive layer of an organic EL element which deteriorates little in luminance when operated over a prolonged period of time and shows excellent durability. The material is an aluminum chelate complex which is represented by general formula (1) in which Ar
1
is a mono- or bicylic arylene group, Ar
2
is a mono- or bicyclic aryl group, R
1
-R
6
are hydrogen or hydrocarbon groups containing 1-8 carbon atoms and contains a compound represented by general formula (1) in which Ar
2
is a halogen as an impurity in an amount of 350 wt ppm or less.
This invention provides an organic EL material useful for the emissive layer of an organic EL element which deteriorates little in luminance when operated over a prolonged period of time and shows excellent durability. The material is an aluminum chelate complex which is represented by general formula (1) in which Ar
1
is a mono- or bicylic arylene group, Ar
2
is a mono- or bicyclic aryl group, R
1
—R
6
are hydrogen or hydrocarbon groups containing 1-8 carbon atoms and contains a compound represented by general formula (1) in which Ar
2
is a halogen as an impurity in an amount of 350 wt ppm or less.
The present invention relates to an organic photoelectronic device and a display device comprising the organic photoelectronic device, the organic photoelectronic device comprising: an anode; a cathode facing the anode; a light-emitting layer interposed between the anode and cathode; a hole transport layer interposed between the anode and the light-emitting layer; and an auxiliary hole transport layer interposed between the hole transport layer and the light-emitting layer, wherein the hole transport layer comprises a compound represented by Chemical formula I, and the auxiliary hole transport layer comprises a compound represented by Chemical formula II. Chemical formulas I and II are the same as set forth in the description.
本发明涉及一种有机光电子器件和一种包含该有机光电子器件的显示装置,该有机光电子器件包括一个阳极;一个面向阳极的阴极;一个介于阳极和阴极之间的发光层;一个介于阳极和发光层之间的空穴传输层;以及一个介于空穴传输层和发光层之间的辅助空穴传输层,其中空穴传输层包括由化学式I表示的化合物,而辅助空穴传输层包括由化学式II表示的化合物。化学式 I 和 II 与说明中所述相同。
Organic electroluminescent display device and chemical compounds for liquid crystals
申请人:Kido Junji
公开号:US20070164257A1
公开(公告)日:2007-07-19
The new organic electroluminescent display device has a carrier-transporting layer and/or an organic luminous layer composed of a nematic liquid crystal or a liquid crystal dispersing a carrier-transporting low-molecule therein. When the organic luminous layer is to be bestowed with faculty as a liquid crystal, it is made of a nematic liquid crystal. Both the carrier-transporting layer and the organic luminous layer may be bestowed with faculty as a liquid crystal. Since the liquid crystal is incorporated in the carrier-transporting layer and/or the organic luminous layer, the display device can be driven as a liquid crystal display device in a dark place by charging with a voltage lower than a light emission initiating potential. Of course, it is driven as an electroluminescent display device when it is charged with a voltage higher than the light emission initiating potential. Use of an electroluminescent liquid crystal as a organic luminous layer enables omission of a carrier-transporting layer.
Organic Electroluminescent Display Device and Chemical Compounds for Liquid Crystals
申请人:Kido Junji
公开号:US20090058277A1
公开(公告)日:2009-03-05
The new organic electroluminescent display device has a carrier-transporting layer and/or an organic luminous layer composed of a nematic liquid crystal or a liquid crystal dispersing a carrier-transporting low-molecule therein. When the organic luminous layer is to be bestowed with faculty as a liquid crystal, it is made of a nematic liquid crystal. Both the carrier-transporting layer and the organic luminous layer may be bestowed with faculty as a liquid crystal. Since the liquid crystal is incorporated in the carrier-transporting layer and/or the organic luminous layer, the display device can be driven as a liquid crystal display device in a dark place by charging with a voltage lower than a light emission initiating potential. Of course, it is driven as an electroluminescent display device when it is charged with a voltage higher than the light emission initiating potential. Use of an electroluminescent liquid crystal as a organic luminous layer enables omission of a carrier-transporting layer.