发明申请
- 专利标题: LIGHT-EMITTING ELEMENT, LIGHT-EMITTING DEVICE, AND ELECTRONIC APPLIANCE
- 专利标题(中): 发光元件,发光装置和电子设备
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申请号: US13552899申请日: 2012-07-19
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公开(公告)号: US20120286256A1公开(公告)日: 2012-11-15
- 发明人: Yuji IWAKI , Junichiro SAKATA , Hisao IKEDA , Tomoya AOYAMA , Takaaki NAGATA , Takahiro KAWAKAMI , Satoshi SEO , Ryoji NOMURA
- 申请人: Yuji IWAKI , Junichiro SAKATA , Hisao IKEDA , Tomoya AOYAMA , Takaaki NAGATA , Takahiro KAWAKAMI , Satoshi SEO , Ryoji NOMURA
- 申请人地址: JP Atsugi-shi
- 专利权人: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
- 当前专利权人: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
- 当前专利权人地址: JP Atsugi-shi
- 优先权: JP2005-213759 20050725; JP2005-230272 20050809
- 主分类号: H01L51/54
- IPC分类号: H01L51/54
摘要:
An object of the present invention is to provide a light-emitting element with high luminous efficiency, and a light-emitting element of low-voltage driving. Another object is to provide a light-emitting device with low power consumption by using the light-emitting element. Another object is to provide an electronic appliance with low power consumption by using the light-emitting device in a display portion. A light-emitting element includes, between a pair of electrodes, a layer containing a composite material of a first organic compound and an inorganic compound and a layer containing a second organic compound being in contact with the layer containing the composite material, wherein the second organic compound does not have a peak of an absorption spectrum in a wavelength region of 450 to 800 nm if the second organic compound is compounded with the inorganic compound.
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