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US 10,854,679 B2Granted
Light-emitting device, light-emitting panel, and display panel
AssigneeSemiconductor Energy Laboratory Co., Ltd.
InventorsTetsuji Ishitani, Masaru Nakano
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Abstract
A novel light-emitting device or light-emitting panel in which reflected external light is reduced is provided. A novel display panel in which reflected external light is reduced is provided. The present inventors have conceived a light-emitting device including a light-emitting module that emits light with a spectrum having a peak at one wavelength in a visible light region and an absorption layer that absorbs part of light with wavelengths shorter than the one wavelength and part of light with wavelengths longer than the one wavelength more easily than light with the one wavelength.
Claims15
A light-emitting panel comprising:
- an absorption layer comprising a first portion, a second portion, a third portion, a fourth portion and a fifth portion;
- a first conductive film;
- a second conductive film;
- a third conductive film;
- a first light-emitting module electrically connected to the first conductive film;
- a second light-emitting module electrically connected to the second conductive film;
- a third light-emitting module electrically connected to the third conductive film;
- and
- a substrate over the first conductive film, the second conductive film, the first light-emitting module, and the second light-emitting module,
- wherein the first light-emitting module and the second light-emitting module are arranged with a first gap therebetween,
- wherein the second light-emitting module and the third light-emitting module are arranged with a second gap therebetween,
- wherein the first portion and the first conductive film overlap with each other,
- wherein the second portion and the second conductive film overlap with each other,
- wherein the third portion and the third conductive film overlap with each other,
- wherein the fourth portion and the first gap overlap with each other,
- wherein the fifth portion and the second gap overlap with each other,
- wherein the first portion, the second portion and the third portion have the same absorption spectrum,
- wherein the absorption spectrum of the absorption layer has two maximal peaks,
- wherein each absorption peak typified by the two maximal peaks exhibits having an absorption at a visible light wavelength,
- wherein the first conductive film and the second conductive film reflect visible light,
- wherein the first light-emitting module is arranged to emit, toward the absorption layer, a first light with a spectrum having a peak at a first wavelength in a visible light region,
- wherein the second light-emitting module is arranged to emit, toward the absorption layer, a second light with a spectrum having a peak at a second wavelength that is longer thanthe first wavelength in the visible light region,
- wherein the third light-emitting module is arranged to emit, toward the absorption layer, a third light with a spectrum having a peak at a third wavelength that is longer than the second wavelength in the visible light region,
- wherein the two maximal peaks in the absorption spectrum of the absorption layer has a fourth wavelength and a fifth wavelength,
- wherein the fourth wavelength is shorter than the first wavelength,
- wherein the fifth wavelength is longer than the second wavelength and shorter than the third wavelength,
- wherein the absorption, layer is the outermost layer, and
- wherein the absorption layer is in contact with the substrate, the first light-emitting module, and the second light-emitting module.
25 more elements
A display panel comprising:
- an absorption layer comprising, a first portion, a second portion, a third portion, a fourth portion and a fifth portion;
- a first conductive film;
- a second conductive film;
- a third conductive film;
- a first light-emitting module electrically connected to the first conductive film;
- a second light-emitting module electrically connected to the second conductive film;
- a third light-emitting module electrically connected to the third conductive film;
- and
- a substrate over the first conductive film, the second conductive film, the third conductive film, the first light-emitting module, the second light-emitting module, and the third light-emitting module,
- wherein the first light-emitting module and the second light-emitting module are arranged with a first gap between the first light-emitting module and the second light-emitting module,
- wherein the second light-emitting module and the third light-emitting module are arranged with a second gap between the second light-emitting module and the third light-emitting module,
- wherein the first portion and the first conductive film overlap with each other,
- wherein the second portion and the second conductive film overlap with each other,
- wherein the third portion and the first gap overlap with each other,
- wherein the fourth portion and the third conductive film overlap with each other,
- wherein the fifth portion and the second gap overlap with each other,
- wherein the first portion, the second portion, the third portion, the fourth portion and the fifth portion have the same absorption spectrum,
- wherein the absorption spectrum of the absorption layer has two maximal peaks,
- wherein each absorption peak typified by the two maximal peaks exhibits having an absorption at a visible light wavelength,
- wherein the first light-emitting module is arranged to emit, toward the absorption, layer, a first light with a spectrum having a peak at a first wavelength in a visible light region,
- wherein the second light-emitting module is arranged to emit, toward the absorption layer, a second light with a spectrum having a peak at a second, wavelength that is longer than the first wavelength in the visible light region,
- wherein the third light-emitting module is arranged to emit, toward the absorption layer, a third light with a spectrum having a peak at a third wavelength that is longer than the second wavelength in the visible light region,
- wherein the two maximal peaks in the absorption spectrum of the absorption layer has a fourth wavelength and a fifth wavelength,
- wherein the fourth wavelength is shorter than the first wavelength,
- wherein the fifth wavelength is positioned between the second wavelength and the third wavelength,
- wherein the absorption layer is the outermost layer, and
- wherein the absorption layer is in contact with the substrate, the first light-emitting module, the second light-emitting module, and the third light-emitting module.
24 more elements
Dependencies are inferred from the claim text.