发明名称 Display apparatus
摘要 In a display apparatus including an organic EL element utilizing the optical interference effect, and a lens, a light absorbing layer is disposed such that, of light radiated from the organic EL element into a protective layer, light radiated at a larger angle than an angle, at which a light intensity distribution of the light radiated into the protective layer with respect to a radiation angle of the light takes a local minimum value, is not output to the outside of the display apparatus through the lens.
申请公布号 US8829786(B2) 申请公布日期 2014.09.09
申请号 US201213532508 申请日期 2012.06.25
申请人 Canon Kabushiki Kaisha 发明人 Sumida Noa;Shikina Noriyuki;Ichinose Yuushi
分类号 H01L51/52;H05B33/24 主分类号 H01L51/52
代理机构 Canon USA Inc IP Division 代理人 Canon USA Inc IP Division
主权项 1. A display apparatus comprising: an organic EL element including a first electrode, a luminescent layer, and a second electrode, the organic EL element radiating light through the second electrode; a protective layer disposed on the second electrode; and a lens disposed on the protective layer, wherein an optical distance L between a reflective surface provided by the first electrode and the luminescent layer satisfies a relationship of; (λ0/8)×(4m+2φ/π−1)<L<(λ0/8)×(4m+2φ/π+1)with respect to a maximum peak wavelength λ0 in a spectrum of light radiated from the organic EL element, a phase shift φ caused when the light is reflected at the reflective surface, and a positive integer m; a light intensity distribution with respect to a radiation angle of the light radiated from the organic EL element into the protective layer has a local minimum value, and the display apparatus further comprises a light absorbing layer disposed such that, of the light radiated into the protective layer, light radiated at a larger angle than an angle, at which the light intensity distribution takes the local minimum value, is not output to an outside of the display apparatus through the lens.
地址 Tokyo JP