- Herocyclic compound and organic light emitting device comprising same
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The present invention provides a new compound useful for an electron injection material or an electron transport material; and an organic light emitting device comprising the compound, which has high efficiency, low voltage, high brightness and a long life. Disclosed are a compound represented by chemical formula 1 or chemical formula 2, and an organic light emitting device comprising the compound. Information about chemical formula 1 and chemical formula 2 is referred to in the detailed description of the present invention.COPYRIGHT KIPO 2015
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Paragraph 0232; 0235; 0237; 0248; 0249
(2016/10/10)
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- Light emitting compound and organic light-emitting diode including the same
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PURPOSE: A light emitting compound is provided to ensure excellent luminous efficiency, power efficiency and brightness, to be used as a host material of a light-emitting layer and to increase service life of an organic electroluminescence device. CONSTITUTION: A light emitting compound is represented by chemical formula(1). In chemical formula(1), X1 - X4 are selected from the group consisting of C1-19 substituted or unsubstituted alkyl group, C1-19 substituted or unsubstituted alkoxy group, cyano group, C1-19 substituted or unsubstituted silyl group, nitro group, hydroxyl group, C1-19 substituted or unsubstituted amino group, C1-19 substituted or unsubstituted sulfonic acid group, halogen, deuterium, hydrogen C1-19 substituted or unsubstituted aryl group, heteroaryl group and heterocycle group; A1 and A2 are independently selected from the group consisting of C, N, S, O, Si and Ge; and L1 and L2 are selected from the group consisting of substituted or unsubstituted C3-40 aryl group, heteroaryl group, and heterocyclic group.
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- BLUE ELECTROLUMINESCENT COMPOUNDS WITH HIGH EFFICIENCY AND DISPLAY DEVICE USING THE SAME
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The present invention relates to novel organic electroluminescent compounds and display devices comprising the same. The organic electroluminescent compounds according to the present invention exhibit high luminous efficiency and excellent life property, so that an OLED device having very good operation life can be prepared therefrom.
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Page/Page column 13-14
(2011/04/14)
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