发明名称 |
Light emitting device |
摘要 |
The luminance of different colors of light emitted from EL elements in a pixel portion of a light emitting device is equalized and the luminance of light emitted from the EL elements is raised. The pixel portion of the light emitting device has EL elements whose EL layers contain triplet compounds and EL elements whose EL layers contain singlet compounds in combination. The luminance of light emitted from the plural EL elements is thus equalized. Furthermore, a hole transporting layer has a laminate structure to thereby cause the EL elements to emit light of higher luminance.
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申请公布号 |
US2002050786(A1) |
申请公布日期 |
2002.05.02 |
申请号 |
US20010938291 |
申请日期 |
2001.08.24 |
申请人 |
YAMAZAKI SHUNPEI;NISHI TAKESHI;MIZUKAMI MAYUMI;IKEDA HISAO |
发明人 |
YAMAZAKI SHUNPEI;NISHI TAKESHI;MIZUKAMI MAYUMI;IKEDA HISAO |
分类号 |
H01L27/32;H01L51/50;(IPC1-7):H05B33/14 |
主分类号 |
H01L27/32 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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