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US 11,011,707 B2Granted
Organic EL display device
AssigneeToray Industries, Inc.
InventorsTakeshi Arai, Kazuto Miyoshi
Life of this patent
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Abstract
The organic EL display device includes at least a transparent electrode, an organic EL layer, and a non-transparent electrode in this order and further includes a black insulating layer, and the non-transparent electrode has a reflectance of 25%±20%.
Claims10
An organic EL display device comprising at least a transparent electrode, an organic EL layer, and a non-transparent electrode in this order and further comprising a black insulating layer that is disposed in a display side of the device, wherein
- the non-transparent electrode is mainly composed of one or more of Ag, Al, C, Cr, Cu, Mo, and Ni and has a reflectance of 25%±20%,
- the black insulating layer includes a benzofuranone based pigment, and
- the black insulating layer has an opening ratio in the display side area of 5% to 35%.
Dependencies are inferred from the claim text.