JP2008235680A5

JP2008235680A5 -

Info

Publication number: JP2008235680A5
Application number: JP2007074867A
Authority: JP
Filing date: 2007-03-22
Publication date: 2009-10-22
Anticipated expiration: 2027-03-22

Claims

A blue light emitting element emitting blue light and a first light emitting part having a transparent resin layer coated on the blue light emitting element;
A blue light emitting element that emits blue light, and a phosphor that is coated on the blue light emitting element and that is excited by the blue light and emits monochromatic light other than blue light, and the emission intensity at the peak wavelength of the blue light is the fluorescence A second light emitting part having a spectral spectrum which is 35% or less of the emission intensity at the peak wavelength of the body;
A light-emitting device comprising:

The second light emitting unit includes a green light emitting unit including a green light emitting phosphor that emits green light when excited by the blue light, and a yellow light emitting that includes a yellow light emitting phosphor that emits yellow light when excited by the blue light. parts and light emitting device according to claim 1, comprising a red light emitting unit, a containing the red-emitting phosphor is excited by the blue light to emit red light.

A near-ultraviolet light emitting element that emits near-ultraviolet light, and a phosphor that is coated on the near-ultraviolet light-emitting element and is excited by the near-ultraviolet light to emit blue light, and the emission intensity at the peak wavelength of the near-ultraviolet light is A blue light-emitting portion having a spectral spectrum which is 35% or less of the emission intensity at the peak wavelength of the phosphor;
A near-ultraviolet light emitting element that emits near-ultraviolet light, and a phosphor that is coated on the near-ultraviolet light-emitting element and is excited by the near-ultraviolet light to emit green light, and the emission intensity at the peak wavelength of the near-ultraviolet light is A green light emitting part having a spectral spectrum which is 35% or less of the emission intensity at the peak wavelength of the phosphor;
A near-ultraviolet light-emitting element that emits near-ultraviolet light and a phosphor that is coated on the near-ultraviolet light-emitting element and is excited by the near-ultraviolet light to emit yellow light, and the emission intensity at the peak wavelength of the near-ultraviolet light is A yellow light emitting part having a spectral spectrum which is 35% or less of the emission intensity at the peak wavelength of the phosphor;
A near-ultraviolet light emitting element that emits near-ultraviolet light, and a phosphor that is coated on the near-ultraviolet light-emitting element and is excited by the near-ultraviolet light to emit red light, and the emission intensity at the peak wavelength of the near-ultraviolet light is A red light emitting part having a spectral spectrum which is 35% or less of the emission intensity at the peak wavelength of the phosphor;
A light-emitting device comprising:

The light emitting device according to any one of claims 1 to 3 , wherein the light emitting units are arranged in a predetermined arrangement pattern on a substrate.

The light-emitting device according to claim 4 , wherein the predetermined arrangement pattern is a line shape or a matrix shape.

The light emitting device of any one of claims 1 to 5, characterized by emitting white light by the light from the light emitting portion.

The light-emitting device according to claim 1 , wherein the light-emitting device emits light having a variable color gamut adjusted by light from the light-emitting unit.