Patent application number | Description | Published |
20080231178 | Organic light emitting diode display - An organic light emitting diode (OLED) may include a first electrode, a hole injection layer on the first electrode, an emission layer on the hole injection layer, an electron injection layer on the emission layer, and a second electrode on the electron injection layer, wherein an absolute value of a difference between a work function of the first electrode and a work function of the second electrode is less than 0.5 eV, and at least one of the hole injection layer and the electron injection layer is a multilayer. | 09-25-2008 |
20090085470 | ORGANIC LIGHT EMITTING DEVICE - An organic light emitting device includes a first electrode; a second electrode; an emitting layer interposed between the first electrode and the second electrode; and a hole injection layer interposed between the first electrode and the second electrode. The hole injection layer includes a first compound having an element selected from the group consisting of Mo, Li, Na, K, Rb, Cs, Be, Mg, Ca, Sr, Ba, and B and an element selected from the group consisting of O, F, S, Cl, Se, Br, and I; and a second compound that is an organic hole injection layer forming compound. These compounds have excellent electrical properties, and are suitable for a fluorescent and phosphorescent device emitting light of a full range of colors, such as red, green, blue, or white. Therefore, an organic light emitting device including the hole injection layer exhibits a high efficiency and high luminance at low voltage, and has a long lifetime. | 04-02-2009 |
20090128012 | ORGANIC LIGHT EMITTING DEVICE - An organic light emitting device includes an electron transport layer including an electron transport material and a metallic compound represented by Formula 1: | 05-21-2009 |
20090160319 | ORGANIC LIGHT EMITTING DEVICE - An organic light emitting device includes a first electrode; a second electrode; an emissive layer disposed between the first electrode and the second electrode; a hole injection layer disposed between the first electrode and the emissive layer; and an electron transport layer disposed between the emissive layer and the second electrode. The hole injection layer includes a hole injecting material and a first compound made up of an element selected from the group consisting of Mo, Li, Na, K, Rb, Cs, Be, Mg, Ca, Sr, Ba, and B and an element selected from the group consisting of O, F, S, Cl, Se, Br, and I. The electron transport layer includes an electron transporting material and a second compound, wherein the second compound is represented by Formula 1: | 06-25-2009 |
20090167159 | ORGANIC LIGHT EMITTING DEVICE - An organic light emitting device includes a first electrode; a second electrode; an emissive layer disposed between the first electrode and the second electrode; a first hole injection layer disposed between the first electrode and the emissive layer; and a first electron transport layer disposed between the emissive layer and the second electrode. The hole injection layer includes a hole injecting material and a first compound made up of an element selected from the group consisting of Mo, Li, Na, K, Rb, Cs, Be, Mg, Ca, Sr, Ba, and B and an element selected from the group consisting of O, F, S, Cl, Se, Br, and I. The electron transport layer comprises an electron transporting material and a second compound, which is Li | 07-02-2009 |
20090167160 | ORGANIC LIGHT EMITTING DEVICE - An organic light emitting device includes a first electrode; a second electrode; an emissive layer disposed between the first electrode and the second electrode; a first hole injection layer disposed between the first electrode and the second electrode; and a second hole injection layer disposed between the first electrode and the second electrode. The first hole injection layer includes a metal fluoride and a first organic hole injection layer forming compound, and the second hole injection layer includes a metal oxide and a second organic hole injection layer forming compound | 07-02-2009 |
20090212688 | ORGANIC LIGHT-EMITTING DEVICE - An organic light-emitting device includes a first electrode; a second electrode; an emissive layer disposed between the first electrode and the second electrode; a first hole injection layer disposed between the first electrode and the emissive layer; a second hole injection layer disposed between the first electrode and the emissive layer; and an electron transport layer disposed between the emissive layer and the second electrode. The first hole injection layer includes a metal fluoride and a first hole injecting material. The second hole injection layer includes a molybdenum oxide and a second hole injecting material. The electron transport layer includes an electron transporting material and a metal oxide. The metal oxide may be one of lithium oxide (Li | 08-27-2009 |
20090315024 | ORGANIC LUMINESCENCE DEVICE - An organic luminescence device including an electron transport layer, which comprises an electron transporting material and a metal oxide represented by Formula 1: A | 12-24-2009 |