COMPOUND, COMPOSITION AND ORGANIC LIGHT-EMITTING DEVICE

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United States of America Patent

SERIAL NO

15514146

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Abstract

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A compound of formula (I) wherein: X is0, S, NR11, CR11 2or SiR11 2wherein R11 in each occurrence is independently a substituent; R1is a substituent; R2, R3, and R4are each independently H or a substituent;R5and R6independently in each occurrence is a substituent;m independently in each occurrence is 0, 1 or 2; and n independently in each occurrence is 0, 1, 2, 3 or 4. The compound may be used as a host for a phosphorescent light-emitting material in an organic light-emitting device.

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Patent Owner(s)

Patent OwnerAddress
SUMITOMO CHEMICAL COMPANY LIMITEDTOKYO 104-8260
CAMBRIDGE DISPLAY TECHNOLOGY LIMITEDCARDINAL WAY GODMANCHESTER CAMBRIDGESHIRE PE29 2XG

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  • 2015 Application Filing Year
  • H01L Class
  • 25498 Applications Filed
  • 22451 Patents Issued To-Date
  • 88.06 % Issued To-Date
Click to zoom InYear of Issuance% of Matters IssuedCumulative IssuancesYearly Issuances20152016201720182019202020212022202320240255075100

Inventor(s)

Inventor Name Address # of filed Patents Total Citations
BOURCET, Florence Godmanchester, GB 34 42
KAMTEKAR, Kiran Godmanchester, GB 45 51

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Citation count rangeNumber of patents cited in rangeNumber of patents cited in various citation count ranges26979357140748325312788503629173801 - 1011 - 2021 - 3031 - 4041 - 5051 - 6061 - 7071 - 8081 - 9091 - 100100 +050010001500200025003000350040004500500055006000650070007500800085009000950010000

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