US 2026/0255789 A1Published application

Display apparatus, display module, and electronic device

AssigneeSemiconductor Energy Laboratory Co., Ltd.

InventorsTakuya ISHIMOTO, Takeyoshi WATABE, Nobuharu OHSAWA

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Abstract

A novel display apparatus that is highly convenient, useful, or reliable is provided. The display apparatus includes a first light-emitting device, a first layer, a first reflective film, a second light-emitting device, a second layer, and a second reflective film. The first light-emitting device includes a third layer, a first electrode, and a first unit. The first unit is interposed between the first electrode and the third layer. The first unit includes a first light-emitting material. The first light-emitting material has an emission spectrum having a peak at a first wavelength. The third layer has a light-transmitting property and includes a second electrode. The first layer is interposed between the third layer and the first reflective film. The first layer has a light-transmitting property and an ordinary refractive index lower than that of the third layer at the first wavelength. The second light-emitting device includes a fourth layer, a third electrode, and a second unit. The second unit is interposed between the third electrode and the fourth layer. A space is provided between the fourth layer and the third layer. The second layer is interposed between the fourth layer and the second reflective film.

Claims20

Dependent claims

A display apparatus comprising:

a first light-emitting device;
a first layer;
a first reflective film;
a second light-emitting device;
a second layer;
and
a second reflective film,
wherein the first light-emitting device comprises a third layer, a first electrode, and a first unit,
wherein the first unit is between the first electrode and the third layer,
wherein the first unit comprises a first light-emitting material,
wherein the first light-emitting material has an emission spectrum having a peak at a first wavelength,
wherein the third layer has a light-transmitting property,
wherein the third layer comprises a second electrode,
wherein the first layer is between the third layer and the first reflective film,
wherein the first layer has a light-transmitting property,
wherein the first layer has an ordinary refractive index lower than that of the third layer at the first wavelength,
wherein the second light-emitting device comprises a fourth layer, a third electrode, and a second unit,
wherein the second unit is between the third electrode and the fourth layer,
wherein the second unit comprises a second light-emitting material,
wherein the second light-emitting material has an emission spectrum having a peak at a second wavelength,
wherein the fourth layer has a light-transmitting property,
wherein the fourth layer comprises a fourth electrode,
wherein a space is positioned between the fourth layer and the third layer,
wherein the second layer is between the fourth layer and the second reflective film,
wherein the second layer has a light-transmitting property, and
wherein the second layer has an ordinary refractive index lower than that of the fourth layer at the second wavelength.

23 more elements

A display apparatus comprising:

a first light-emitting device;
a first layer;
a first reflective film;
a second light-emitting device;
a second layer;
and
a second reflective film,
wherein the first light-emitting device comprises a third layer, a first electrode, and a first unit,
wherein the first unit is between the first electrode and the third layer,
wherein the first unit comprises a first light-emitting material,
wherein the third layer has a light-transmitting property,
wherein the third layer comprises a second electrode,
wherein the third layer comprises an element with an atomic number of 21 to 83 at 5 atomic % or higher,
wherein the first layer is between the third layer and the first reflective film,
wherein the first layer has a light-transmitting property,
wherein the first layer comprises an element with an atomic number of 1 to 20 at 95 atomic % or higher,
wherein the second light-emitting device comprises a fourth layer, a third electrode, and a second unit,
wherein the second unit is between the third electrode and the fourth layer,
wherein the second unit comprises a second light-emitting material,
wherein the fourth layer has a light-transmitting property,
wherein the fourth layer comprises a fourth electrode,
wherein the fourth layer comprises an element with an atomic number of 21 to 83 at 5 atomic % or higher,
wherein a space is positioned between the fourth layer and the third layer,
wherein the second layer is between the fourth layer and the second reflective film,
wherein the second layer has a light-transmitting property, and
wherein the second layer comprises an element with an atomic number of 1 to 20 at 95 atomic % or higher.

23 more elements

Dependencies are inferred from the claim text.