Electronic device, light-emitting device, electronic appliance, and lighting device
AssigneeSemiconductor Energy Laboratory Co., Ltd.
InventorsTakeyoshi Watabe, Satoshi Seo
Life of this patent
Estimating the term…
Abstract
An electronic device with high outcoupling efficiency or a high light-trapping effect is provided. The electronic device includes a first layer and a second layer between a first electrode and a second electrode, the first layer is included between the first electrode and the second layer, the first layer includes a first organic compound and a first substance, the refractive index of a thin film of the first organic compound is higher than or equal to 1 and lower than or equal to 1.75, the first substance has an electron-accepting property, and the second layer has a function of emitting or absorbing light.
Claims20
An electronic device comprising:
- a first electrode;
- a second electrode;
- a first layer;
- and
- a second layer,
- wherein the first layer is provided between the first electrode and the second layer,
- wherein the second layer is provided between the first layer and the second electrode,
- wherein the first layer comprises a first substance and a first organic compound,
- wherein the first substance has an electron-accepting property,
- wherein a refractive index of a thin film of the first organic compound is higher than or equal to 1 and lower than or equal to 1.75, and
- wherein the first organic compound has an electron-donating property.
An electronic device comprising:
- a first layer between a first electrode and a second electrode,
- wherein the first layer comprises a first organic compound and a first substance,
- wherein the first organic compound comprises a first skeleton and an electron-donating skeleton,
- wherein the first skeleton is a tetraarylmethane skeleton or a tetraarylsilane skeleton, and
- wherein the electron-donating skeleton comprises an acridine skeleton or an azepine skeleton.
An electronic device comprising:
- a first layer, a second layer, and a third layer which are between a first electrode and a second electrode,
- wherein the first layer is provided between the first electrode and the second layer,
- wherein the second layer is provided between the first layer and the third layer,
- wherein the first layer comprises a first substance and a first organic compound,
- wherein the first substance has an electron-accepting property,
- wherein the third layer is configured to emit or absorb light,
- wherein a refractive index of the first layer is lower than a refractive index of the second layer and a refractive index of the third layer, and
- wherein a refractive index of a thin film of the first organic compound is higher than or equal to 1 and lower than or equal to 1.75.
Dependencies are inferred from the claim text.