Light emitting device, light source device, and display device
AssigneeNichia Corporation
InventorsAkihiro FUJIOKA, Seitaro AKAGAWA
Life of this patent
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Abstract
A light emitting device includes a first light emitting element and a first sealing member. The first light emitting element has a peak emission wavelength of 430 nm or greater and less than 490 nm. The first sealing member covers the first light emitting element, and contains a first phosphor having a peak emission wavelength of 490 nm or greater and 570 nm or less. A content of the first phosphor is 50 weight % or greater with respect to the total weight of the first sealing member. A mixed color light in which light emitted from the first light emitting element and light emitted from the first phosphor are mixed has an excitation purity of 70% or greater on a 1931 CIE chromaticity diagram.
Claims12
A light emitting device comprising:
- a first light emitting element having a peak emission wavelength of 430 nm or greater and less than 490 nm;
- and
- a first sealing member covering the first light emitting element, and containing a first phosphor having a peak emission wavelength of 490 nm or greater and 570 nm or less, with a content of the first phosphor is 50 weight % or greater with respect to a total weight of the first sealing member, wherein
- a mixed color light in which light emitted from the first light emitting element and light emitted from the first phosphor are mixed has an excitation purity of 70% or greater on a 1931 CIE chromaticity diagram.
Dependencies are inferred from the claim text.