| 发明名称 | Organic light emitting display device | ||
| 摘要 | An organic light emitting display device includes a first electrode formed on a substrate and being a reflective electrode, a second electrode facing the first electrode and being a semi-transparent electrode, and red, green and blue emission layers formed between the first and second electrodes, wherein a maximum electroluminescent peak of the redemission layer and a maximum photoluminescence peak of a host included in the red emission layer satisfy Equation 1 below: REDELλmax−RHPLλmax≧120 nm <Equation 1> wherein REDELλmax is a maximum electroluminescent peak of the red emission layer, and RHPLλmax is a maximum photoluminescence peak of a red host included in the red emission layer. | ||
| 申请公布号 | US9559323(B2) | 申请公布日期 | 2017.01.31 |
| 申请号 | US201314109084 | 申请日期 | 2013.12.17 |
| 申请人 | LG DISPLAY CO., LTD. | 发明人 | Lee Se-Hee;Kim Kwan-Soo;Lee Seok-Jong;Park Jin-Ho;Kwon Sun-Kap |
| 分类号 | H01L29/08;H01L51/50;H01L51/52;H01L27/32;H01L51/00 | 主分类号 | H01L29/08 |
| 代理机构 | Birch, Stewart, Kolasch & Birch, LLP | 代理人 | Birch, Stewart, Kolasch & Birch, LLP |
| 主权项 | 1. An organic light emitting display device comprising: a first electrode formed on a substrate and being a reflective electrode; a second electrode facing the first electrode and being a semi-transparent electrode; and red, green and blue emission layers formed between the first and second electrodes, wherein a maximum electroluminescent peak of each of the red, green and blue emission layers and a maximum photoluminescence peak of a host included in each emission layer satisfy Equations 1 to 3 below: REDELλmax−RHPLλmax≧120 nm <Equation 1> wherein REDELλmax is a maximum electroluminescent peak of the red emission layer, and RHPLλmax is a maximum photoluminescence peak of a red host included in the red emission layer, GreenELλmax−GHPLλmax≧20 nm <Equation 2> wherein GREENELλmax is a maximum electroluminescent peak of the green emission layer, and GHPLλmax is a maximum photoluminescence peak of a green host included in the green emission layer, and BLUEELλmax−BHPLλmax≧20 nm <Equation 3>wherein BLUEELλmax is a maximum electroluminescent peak of the blue emission layer, and BHPLλmax is a maximum photoluminescence peak of a blue host included in the blue emission layer, wherein the red host is formed of Be complexes such as BeBq2 represented by Formula 1 below: wherein the blue host is formed of a material represented by Formula 4 below: | ||
| 地址 | Seoul KR | ||