Light-emitting element, lighting device, and method for manufacturing lighting device and display device

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United States of America Patent

PATENT NO 11692674
APP PUB NO 20230019409A1
SERIAL NO

17949282

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Abstract

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Disclosed is a light-emitting element including a first electrode, a first light-emitting layer, an ionic-liquid layer, a second light-emitting layer, and a second electrode. The first light-emitting layer is located over the first electrode and includes a first emissive polymer and an ionic liquid. The ionic-liquid layer is located over the first light-emitting layer and includes an ionic liquid. The second light-emitting layer is located over the ionic-liquid layer and includes a second emissive polymer and an ionic liquid. The second electrode is located over the second light-emitting layer. The light-emitting element may further include a first substrate under the first electrode, a second substrate over the second electrode, and a sealing layer located between the first substrate and the second substrate and surrounding the first electrode.

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Patent Owner(s)

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JAPAN DISPLAY INCTOKYO TOKYO METROPOLIS

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Imazeki, Yoshikatsu Tokyo, JP 90 483
Kamei, Yoshifumi Tokyo, JP 31 15
Kamijo, Yoichi Tokyo, JP 62 190
Miyasaka, Koichi Tokyo, JP 59 81
Osawa, Shuichi Tokyo, JP 64 195

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