Light detection device, method of manufacturing the same, electronic equipment, and mobile body

A method of manufacturing a light detection device, the method comprising:

• forming a photoelectric conversion unit that includes a photoelectric conversion layer and an oxide semiconductor, the photoelectric conversion layer receiving light and performing photoelectric conversion to generate an electric charge, the oxide semiconductor being configured to store the electric charge;
• forming a plurality of partition walls standing on the photoelectric conversion unit by a sputtering method;
• and
• forming a color filter between the plurality of the partition walls.

Electronic equipment comprising:

• an optical unit;
• a signal processing unit;
• and
• a light detection device, wherein
• the light detection device includes
• arrays of multiple pixels, the multiple pixels each including a color filter, a photoelectric conversion layer, and an oxide semiconductor, the photoelectric conversion layer detecting light in a first wavelength range having transmitted through the color filter, and performing photoelectric conversion to generate an electric charge, the oxide semiconductor being configured to store the electric charge;
• and
• a partition wall located in a gap between the color filters of the multiple pixels, the partition wall having a refractive index lower than that of the color filter.

A mobile body comprising:

• a light emitting device that emits irradiation light;
• and
• a light detection device including
• arrays of multiple pixels, the multiple pixels each including a color filter, a photoelectric conversion layer, and an oxide semiconductor, the photoelectric conversion layer detecting light in a first wavelength range having transmitted through the color filter, and performing photoelectric conversion to generate an electric charge, the oxide semiconductor being configured to store the electric charge;
• and
• a partition wall located in a gap between the color filters of the multiple pixels, the partition wall having a refractive index lower than that of the color filter.