- benzofluorene-based compound and organic light emitting diode comprising the same
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Disclosed are a benzofluorene-based compound and an organic light emitting diode including the same. According to an aspect, provided is a benzofluorene-based compound represented by following chemical formula 1. According to the other aspect, provided is an organic light emitting diode including a substrate; a first electrode; a second electrode facing the first electrode; and a light emitting layer interposed between the first electrode and the second electrode, wherein the light emitting layer comprises one or more kind of the benzonfluorene-based compound. The organic light emitting diode including the benzofluorene-based compound has low driving voltage, high efficiency, high brightness, and long lifetime.
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Paragraph 0235-0236; 0342-0343
(2020/04/29)
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- Benzfluorene derivative and organic light-emitting device containing same
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The invention provides a benzfluorene derivative and an organic light-emitting device containing the same, and relates to the technical field of organic optoelectronic materials. According to the benzfluorene derivative and the organic light-emitting device containing the same, by connecting a substituted or unsubstituted aromatic-ring condensed imidazole derivative and aromatic-ring condensed oxazole derivative onto a benzfluorene main body, the benzfluorene derivative is obtained. The benzfluorene derivative has certain electron transportation capability, is beneficial to compounding of holes and electrons in a light-emitting layer and has good stability and high light-emitting efficiency, synthesis is simple and easy to operate, and the benzfluorene derivative can be applied to the organic light-emitting device as a light-emitting layer doped material, so that the problems can be effectively solved that in the organic light-emitting device, a blue light-emitting material is low in light-emitting efficiency and short in service life, and the organic light-emitting device containing the same has the advantages of being high in light-emitting efficiency and long in service life.
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Paragraph 0059; 0062
(2018/11/22)
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- Benzfluorene derivative and organic electroluminescence device containing same
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The invention provides a benzfluorene derivative and an organic electroluminescence device containing the same, and relates to the technical field of organic optoelectronic materials. According to thebenzfluorene derivative and the organic electroluminescence device containing the same, by connecting a substituted or unsubstituted aromatic-ring condensed imidazole derivative onto a benzfluorene main body, the benzfluorene derivative is obtained. The benzfluorene derivative has certain electron transportation capability, is beneficial to compounding of holes and electrons in a luminescent layer and has good stability and high luminescent efficiency, synthesis is simple and easy to operate, and the benzfluorene derivative can be applied to the organic electroluminescence device as a luminescent layer doped material so that the problems can be effectively solved that in the organic electroluminescence device, a blue luminescent material is low in luminescent efficiency and short in service life, and the organic electroluminescence device containing the same has the advantages of being high in luminescent efficiency and long in service life.
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Paragraph 0056; 0057; 0059
(2018/11/22)
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