ORGANIC LIGHT-EMITTING DEVICE

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United States of America Patent

APP PUB NO 20160111675A1
SERIAL NO

14889623

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Abstract

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The invention relates to an OLED(1) comprising an etch stop layer (3) between a first electrode (2) and anorganic layer stack (4) and an electrically conductive element (13) arranged in an etched region (6) within a second electrode (5) and the organic layer stack such that the electrically conductive element is electrically connected with the first electrode. The etch stop layer is a hole-injection layer comprising a metal oxide with semi conducting properties. In particular, the OLED may comprise several electrically conductive elements in several etched regions, wherein the electrically conductive elements can be electrically connected with different parts of the first electrode and with each other via an electrical connector (14) for shunting the different parts of the first electrode, which can lead to a more homogenous light emission. The electrical conductive elements may also be used to provide a color tunability. The etch stop layer can reduce the likelihood of the first electrode to be damaged due to etching.

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Patent Owner(s)

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OLEDWORKS GMBH52068 AACHEN

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  • 2014 Application Filing Year
  • H01L Class
  • 23828 Applications Filed
  • 21803 Patents Issued To-Date
  • 91.51 % Issued To-Date
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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
GIERTH, Rainald Manfred Aachen, DE 6 14
GRABOWSKI, Stefan Peter Neuss, DE 15 161
MEYER, Jens Aachen, DE 28 182

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Citation count rangeNumber of patents cited in rangeNumber of patents cited in various citation count ranges1792827316886303131891006776342711301 - 1011 - 2021 - 3031 - 4041 - 5051 - 6061 - 7071 - 8081 - 9091 - 100100 +050010001500200025003000350040004500500055006000650070007500800085009000

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