| 发明名称 | Organic electroluminescent device | ||
| 摘要 | Provided are a hole-injecting material for an organic electroluminescent device (organic EL device) exhibiting high luminous efficiency at a low voltage and having greatly improved driving stability, and an organic EL device using the material. The hole-injecting material for an organic EL device is selected from benzenehexacarboxylic acid anhydrides, benzenehexacarboxylic acid imides, or N-substituted benzenehexacarboxylic acid imides. Further, the organic EL device has at least one light-emitting layer and at least one hole-injecting layer between an anode and a cathode arranged opposite to each other, and includes the above-mentioned hole-injecting material for an organic EL device in the hole-injecting layer. The organic EL device may contain a hole-transporting material having an ionization potential (IP) of 6.0 eV or less in the hole-injecting layer or a layer adjacent to the hole-injecting layer. | ||
| 申请公布号 | US8847367(B2) | 申请公布日期 | 2014.09.30 |
| 申请号 | US200912922635 | 申请日期 | 2009.02.27 |
| 申请人 | Nippon Steel & Sumikin Chemical Co., Ltd. | 发明人 | Fukumatsu Takayuki;Ichihashi Ikumi;Miyazaki Hiroshi;Oda Atsushi |
| 分类号 | H01L23/58;C07D493/14;H01L51/00;C07D487/04;H01L51/50 | 主分类号 | H01L23/58 |
| 代理机构 | Birch, Stewart, Kolasch & Birch, LLP | 代理人 | Birch, Stewart, Kolasch & Birch, LLP |
| 主权项 | 1. An organic electroluminescent device, comprising at least one light-emitting layer and at least one hole-injecting layer between an anode and a cathode arranged opposite to each other, wherein the organic electroluminescent device comprises a hole-injecting layer containing a carboxylic acid derivative represented by the following general formula (1):where: X represents O or N—R; and R represents H or a monovalent substituent. | ||
| 地址 | Tokyo JP | ||