LIGHT-EMITTING DEVICE
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United States of America Patent
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Issued Date -
Sep 21, 2017
app pub date -
Aug 17, 2015
filing date -
Aug 22, 2014
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Abstract
The present invention relates to a current-light conversion device (1), such as an OLED or an OPVD, wherein the current-light conversion device comprises a substrate (10), a current-light conversion arrangement (11) comprising a current-light conversion material (111) provided between a first and a second electrode layer (110, 112), and a barrier layer (12) comprising a transparent organic layer (121) provided between a first and a second transparent inorganic barrier layer (120, 122). A getter material is provided in the transparent organic layer (121) in a pattern of getter dots (1210). Since the getter material is provided in a pattern of getter dots (1210), the light scattering effect resulting from dispersed getter particles can be avoided, resulting in improved transparency characteristics of the barrier layer (12) while still providing the desired getter functionality.
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