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US 12,278,294 B2Granted
Photo detecting device
AssigneeJapan Display Inc.
InventorsMasanobu Ikeda, Yasuhiro Kanaya
Life of this patent
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Abstract
A photo detecting device comprising: a substrate; a plurality of photoelectric conversion elements provided to the substrate and configured to output a detection signal corresponding to light with which the photoelectric conversion elements are irradiated; at least one or more light emitting elements provided to the substrate; and a control circuit configured to set a wavelength of light output from the light emitting element by controlling an electric current flowing through the light emitting element.
Claims5
A photo detecting device comprising:
- a substrate;
- a plurality of photoelectric conversion elements provided to the substrate and configured to output a detection signal corresponding to light with which the photoelectric conversion elements are irradiated;
- at least one or more light emitting elements provided to the substrate;
- and
- a control circuit configured to set a wavelength of light output from the light emitting element by controlling an electric current flowing through the light emitting element, wherein
- the photoelectric conversion elements are provided to an upper side of a first main surface of the substrate,
- the light emitting element is provided to a lower side of a second main surface opposite to the first main surface, and
- a through hole passing through the first main surface and the second main surface of the substrate is formed in a region overlapping the light emitting element and not overlapping the photoelectric conversion elements.
5 more elements
Dependencies are inferred from the claim text.