发明授权
- 专利标题: Organic electroluminescent device
- 专利标题(中): 有机电致发光器件
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申请号: US10320546申请日: 2002-12-17
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公开(公告)号: US06906457B2公开(公告)日: 2005-06-14
- 发明人: Young Woo Song , Hitoshi Yamamoto , Takeo Wakimoto , Chang Hee Ko
- 申请人: Young Woo Song , Hitoshi Yamamoto , Takeo Wakimoto , Chang Hee Ko
- 申请人地址: KR Suwon-si
- 专利权人: Samsung SDI Co., Ltd.
- 当前专利权人: Samsung SDI Co., Ltd.
- 当前专利权人地址: KR Suwon-si
- 代理机构: Stein, McEwen & Bui, LLP
- 优先权: KR2001-0080127 20011217
- 主分类号: H05B33/14
- IPC分类号: H05B33/14 ; H01L51/52 ; H01J1/62
摘要:
An organic electroluminescent display (EL) device including a substrate, a transparent electrode, a hole transport layer, a light emitting layer, an electron transport layer and a cathode, sequentially stacked, wherein assuming that the sum of a geometric thickness of the electron transport layer, a geometric thickness of the light emitting layer is denoted by l1, the l1 with a maximum of luminance is denoted by a peak_l1, the sum of a geometric thickness of the hole transport layer and a geometric thickness of the transparent electrode is denoted by l2, the geometric thickness of the hole transport layer is denoted by d(HTL), the d(HTL) with a maximum or minimum of luminance is denoted by a peak_d(HTL), the l1 is set to have an maximum of luminance and l2 is set such that a thickness distribution according to colors of red, green and blue at the peak_l2 is within the range of 30 nm, respectively.
公开/授权文献
- US20030122481A1 Organic electroluminescent device 公开/授权日:2003-07-03