Phosphor substrate, light emitting substrate, and lighting device
AssigneeDenka Company Limited
InventorMasahiro Konishi
Life of this patent
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Abstract
A phosphor substrate of the present invention is a phosphor substrate having a plurality of light emitting elements mounted on one surface, and includes an insulating substrate, a first electrode group which is disposed on one surface of the insulating substrate and includes a plurality of electrodes bonded to the plurality of light emitting elements, a phosphor layer which is disposed on one surface of the insulating substrate and includes a phosphor in which a light emission peak wavelength, in a case where light emitted by light emitting element is used as excitation light, is in a visible light region, and a second electrode group which is disposed on the other surface of the insulating substrate and includes a plurality of electrodes.
Claims15
A phosphor substrate having a plurality of light emitting elements mounted on one surface, the phosphor substrate comprising:
- an insulating substrate;
- a first electrode group which is disposed on one surface of the insulating substrate and includes a plurality of electrodes bonded to the plurality of light emitting elements;
- a phosphor layer which is disposed on one surface of the insulating substrate and includes a phosphor in which a light emission peak wavelength, in a case where light emitted by a light emitting element is used as excitation light, is in a visible light region;
- a second electrode group which is disposed on the other surface of the insulating substrate and includes a plurality of electrodes;
- and
- an electronic component, which is not the light emitting element, and is mounted on the one surface of the insulating substrate.
A phosphor substrate having a plurality of light emitting elements mounted on one surface, the phosphor substrate comprising:
- an insulating substrate;
- a first electrode group which is disposed on one surface of the insulating substrate and includes a plurality of electrodes bonded to the plurality of light emitting elements;
- a phosphor layer which is disposed on one surface of the insulating substrate and includes a phosphor in which a light emission peak wavelength, in a case where light emitted by a light emitting element is used as excitation light, is in a visible light region;
- and
- a second electrode group which is disposed on the other surface of the insulating substrate and includes a plurality of electrodes,
- wherein a region of at least a part of a first arrangement region which is an arrangement region of the first electrode group in the insulating substrate overlaps with a second arrangement region formed as an arrangement region of the second electrode group in the insulating substrate in a thickness direction of the insulating substrate, and
- wherein the first arrangement region is equal to or more than 60% of the one surface of the insulating substrate.
A phosphor substrate having a plurality of light emitting elements mounted on one surface, the phosphor substrate comprising:
- an insulating substrate;
- a first electrode group which is disposed on one surface of the insulating substrate and includes a plurality of electrodes bonded to the plurality of light emitting elements;
- a phosphor layer which is disposed on one surface of the insulating substrate and includes a phosphor in which a light emission peak wavelength, in a case where light emitted by a light emitting element is used as excitation light, is in a visible light region;
- and
- a second electrode group which is disposed on the other surface of the insulating substrate and includes a plurality of electrodes,
- wherein the plurality of electrodes included in the second electrode group are dummy electrodes electrically connected to the plurality of electrodes included in the first electrode group.
A phosphor substrate having a plurality of light emitting elements mounted on one surface, the phosphor substrate comprising:
- an insulating substrate;
- a first electrode group which is disposed on one surface of the insulating substrate and includes a plurality of electrodes bonded to the plurality of light emitting elements;
- a phosphor layer which is disposed on one surface of the insulating substrate and includes a phosphor in which a light emission peak wavelength, in a case where light emitted by a light emitting element is used as excitation light, is in a visible light region;
- and
- a second electrode group which is disposed on the other surface of the insulating substrate and includes a plurality of electrodes,
- wherein the light emitting element is formed as a chip sized package (CSP) in which an LED is incorporated, and
- wherein a correlated color temperature of the phosphor is set to a correlated color temperature which is the same as a correlated color temperature of a phosphor contained in the CSP.
Dependencies are inferred from the claim text.