Light-emitting element, exposure head and image-forming apparatus
AssigneeSeiko Epson Corporation
InventorsTetsuji FUJITA, Hidetoshi YAMAMOTO
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AssigneeSeiko Epson Corporation
InventorsTetsuji FUJITA, Hidetoshi YAMAMOTO
Estimating the term…
A light-emitting element includes a cathode, an anode, a luminescent layer disposed between the cathode and the anode, a first electron transport layer disposed between the luminescent layer and the cathode, and a second electron transport layer in contact with the luminescent layer and the first electron transport layer between the luminescent layer and the first electron transport layer. The luminescent layer contains a red luminescent material emitting red light. The first electron transport layer contains a first electron transport material. The second electron transport layer contains a second electron transport material different from the first electron transport material.
A light-emitting element comprising:
Dependencies are inferred from the claim text.