Light emitting device and method for manufacturing same
AssigneeKabushiki Kaisha Toshiba
InventorsTetsuro Komatsu, Hideo Tamura
Life of this patent
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Abstract
A light emitting device includes: a substrate including through electrodes; a light emitting element bonded onto the substrate and connected to the through electrodes; and a dielectric film made of a translucent inorganic material and spaced from the light emitting element so that an internal space is formed between the dielectric film and the substrate, emission light from the light emitting element being allowed to be emitted through the dielectric film, and a manufacturing the same are provided.
Claims20
A light emitting device comprising:
- a substrate including through electrodes;
- a light emitting element bonded onto the substrate and connected to the through electrodes;
- and
- a dielectric film made of a translucent inorganic material and spaced from the light emitting element so that an internal space is formed between the dielectric film and the substrate,
- emission light from the light emitting element being allowed to be emitted through the dielectric film.
A method for manufacturing a light emitting device, comprising:
- forming a light emitting element including a multilayer body having a light emitting layer, and a p-side electrode and an n-side electrode connected to the multilayer body;
- bonding the light emitting element to an upper surface of a substrate including through electrodes and electrically connecting the p-side electrode and the n-side electrode respectively to the through electrodes;
- forming an organic film so as to cover at least a side surface of the light emitting element and the upper surface of the substrate;
- forming a first dielectric film made of a translucent inorganic material so as to cover the organic film;
- and
- removing the organic film through an opening provided in the first dielectric film, and then sealing the opening with a second dielectric film made of a translucent inorganic material.
A light emitting device comprising:
- a light emitting element including a translucent substrate, a multilayer body having a first surface adjacent to a first surface of the translucent substrate and having a light emitting layer, and a p-side electrode and an n-side electrode formed on a second surface opposite to the first surface of the multilayer body;
- a substrate including through electrodes to which the p-side electrode and the n-side electrode are respectively connected by bumps;
- a phosphor layer provided so as to cover at least a second surface opposite to the first surface of the translucent substrate and being operable to absorb emission light from the light emitting element and emit wavelength-converted light having a longer wavelength than the emission light;
- and
- a dielectric film provided on the substrate, enclosing the phosphor layer, the light emitting element, and the bumps, and made of a translucent inorganic material,
- the dielectric film having a lens surface capable of at least one of convergence and divergence of the emission light and the wavelength-converted light.
Dependencies are inferred from the claim text.