Light-emitting device
AssigneePioneer Corporation
InventorAkira HIRASAWA
Life of this patent
Estimating the term…
Abstract
A light-emitting device (10) includes a light-transmitting first base material (210), a light-transmitting second base material (220), and a plurality of light-emitting units (140). The light-emitting units (140) are located between the first base material (210) and the second base material (220). The light-emitting units (140) emit light having a peak at a first wavelength. In addition, the light-emitting device (10) includes a light-transmitting region located between the plurality of light-emitting units (140). Further, the second base material (220) includes an absorption layer (170). The absorption layer (170) is a layer that particularly absorbs light of the first wavelength.
Claims13
A light-emitting device comprising:
- a plurality of light-emitting units located between a light-transmitting first base material and a light-transmitting second base material, the light-emitting units emitting light having a peak at a first wavelength;
- and
- a light-transmitting region located between the plurality of light-emitting units, wherein the second base material comprises an absorption layer, and
- wherein the absorption layer has a higher light absorption ratio at the first wavelength than an average light absorption ratio within a wavelength range of equal to or higher than 400 nm and equal to or lower than 700 nm.
A light-emitting device comprising:
- a plurality of light-emitting units located between a light-transmitting first base material and a light-transmitting second base material, the light-emitting units emitting light having a peak at a first wavelength;
- and
- a light-transmitting region located between the plurality of light-emitting units,
- wherein the second base material comprises an absorption layer, and
- wherein an absorption ratio of the absorption layer with respect to light within a wavelength range between two wavelengths as upper and lower limits each having an intensity of one half of a peak intensity of the peak at the first wavelength is equal to or greater than 10%.
A light-emitting device comprising:
- a plurality of light-emitting units located between a light-transmitting first base material and a light-transmitting second base material, the light-emitting units emitting light having a peak at a first wavelength;
- and
- a light-transmitting region located between the plurality of light-emitting units,
- wherein the second base material comprises an absorption layer, and
- wherein the absorption layer has an absorption peak within a wavelength range between two wavelengths as upper and lower limits each having an intensity of one half of a peak intensity of the peak at the first wavelength.
A light-emitting device comprising:
- a plurality of light-emitting units located between a light-transmitting first base material and a light-transmitting second base material, the light-emitting units emitting light having a peak at a first wavelength;
- and
- a light-transmitting region located between the plurality of light-emitting units,
- wherein the second base material comprises an absorption layer, and
- wherein the first wavelength is contained within a wavelength range between two wavelengths as upper and lower limits each having an absorption intensity of one half of a peak intensity at a maximum light absorption peak of the absorption layer.
Dependencies are inferred from the claim text.