| 发明名称 | Light-emitting element having electron-trapping layer | ||
| 摘要 | A light-emitting element is provided, including a first electrode and a second electrode, a first layer including first and second organic compounds, the first layer being formed between the first electrode and the second electrode wherein the first organic compound is capable of emitting a first light and the second organic compound has an electron transporting property, and a second layer including third and fourth organic compounds, the second layer being formed between the first layer and the second electrode wherein the third organic compound is capable of emitting a second light and has an electron trap property and the fourth organic compound has an electron transporting property. | ||
| 申请公布号 | US9608222(B2) | 申请公布日期 | 2017.03.28 |
| 申请号 | US201113240003 | 申请日期 | 2011.09.22 |
| 申请人 | Semiconductor Energy Laboratory Co., Ltd. | 发明人 | Suzuki Tsunenori;Seo Satoshi |
| 分类号 | H01L27/15;H01L31/12;H01L33/00;H01L29/74;H01L29/00;H01L51/50;H01L51/00;H01L51/52 | 主分类号 | H01L27/15 |
| 代理机构 | Husch Blackwell LLP | 代理人 | Husch Blackwell LLP |
| 主权项 | 1. A light emitting device comprising: an anode; a first layer over the anode, the first layer being configured to emit light; a second layer over the first layer; an electron transporting layer over the second layer; and a cathode over the electron transporting layer, wherein the second layer is capable of retarding transfer of electron injected to the second layer from the cathode through the electron transporting layer, and wherein the electron transporting layer is between the second layer and the cathode. | ||
| 地址 | JP | ||