Detection device and optical filter
According to an aspect, a detection device includes: a substrate having a detection region; a plurality of photodiodes provided in the detection region; a first light-transmitting resin layer provided so as to cover the photodiodes; a light-blocking layer provided on the upper side of the first light-transmitting resin layer and provided with openings in regions overlapping the respective photodiodes; a second light-transmitting resin layer provided so as to cover the light-blocking layer; and a plurality of lenses provided on the upper side of the second light-transmitting resin layer so as to overlap the respective photodiodes. The second light-transmitting resin layer is provided so as to cover an end on a peripheral side of the light-blocking layer on a peripheral side of the substrate.
1. A detection device comprising:
a substrate having a detection region;
a plurality of photodiodes provided in the detection region;
a first light-transmitting resin layer provided so as to cover the photodiodes;
a light-blocking layer provided on the upper side of the first light-transmitting resin layer and provided with openings in regions overlapping the respective photodiodes;
a second light-transmitting resin layer provided so as to cover the light-blocking layer;
a plurality of lenses provided on the upper side of the second light-transmitting resin layer so as to overlap the respective photodiodes, and
an infrared (IR) cut filter layer provided between the photodiodes and the first light-transmitting resin layer and configured to block infrared rays, wherein
the second light-transmitting resin layer is provided so as to cover an end on a peripheral side of the light-blocking layer on a peripheral side of the substrate
the first light-transmitting resin layer, the light-blocking layer, the second light-transmitting resin layer, and the lenses are stacked on the IR cut filter, and
the first light-transmitting resin layer is provided so as to cover an end on a peripheral side of the IR cut filter.
2. The detection device according to claim 1 , wherein the second light-transmitting resin layer is provided so as to cover the end on the peripheral side of the light-blocking layer and an end on a peripheral side of the first light-transmitting resin layer.
3. The detection device according to claim 1 , wherein an end on a peripheral side of the first light-transmitting resin layer and an end on a peripheral side of the second light-transmitting resin layer are formed in a sloping manner.
4. The detection device according to claim 1 , wherein a plurality of steps are formed at each of an end on a peripheral side of the first light-transmitting resin layer and an end on a peripheral side of the second light-transmitting resin layer.
5. The detection device according to claim 4 , wherein
the steps of the second light-transmitting resin layer are formed by connecting at least a first upper surface, a first side surface, a second upper surface, and a second side surface from the end on the peripheral side of the second light-transmitting resin layer, and
a height of each of the steps is smaller than a width of the step.
6. The detection device according to claim 1 , further comprising an organic protective film provided between the photodiodes and the first light-transmitting resin layer, wherein
the organic protective film is continuously formed from the detection region to an end on the peripheral side of the substrate, and
an end on a peripheral side of the first light-transmitting resin layer is provided on the upper side of the organic protective film.
7. The detection device according to claim 1 , wherein a thickness of the IR cut filter is made larger than a thickness of the light-blocking layer.
8. The detection device according to claim 1 , wherein a thickness of the light-blocking layer is made larger than a thickness of the IR cut filter.
9. The detection device according to claim 1 , wherein, in plan view in a direction orthogonal to the substrate, a chamfered or rounded portion is formed at least at one of a corner on a peripheral side of the first light-transmitting resin layer and a corner on a peripheral side of the second light-transmitting resin layer.
10. The detection device according to claim 1 , wherein an end on a peripheral side of the first light-transmitting resin layer, an end on a peripheral side of the second light-transmitting resin layer, and the end on the peripheral side of the light-blocking layer are arranged in the order as listed, from an end on the peripheral side of the substrate toward the detection region.
11. An optical filter provided in a detection device including a substrate having a detection region and a plurality of photodiodes provided in the detection region, the optical filter comprising:
a first light-transmitting resin layer;
a light-blocking layer provided on the upper side of the first light-transmitting resin layer and provided with a plurality of openings;
a second light-transmitting resin layer provided so as to cover the light-blocking layer;
a plurality of lenses provided on the upper side of the second light-transmitting resin layer, and
an infrared (IR) cut filter layer provided between the photodiodes and the first light-transmitting resin layer and configured to block infrared rays, wherein
the second light-transmitting resin layer is provided so as to cover an end on a peripheral side of the light-blocking layer on a peripheral side of the first light-transmitting resin layer,
the first light-transmitting resin layer, the light-blocking layer, the second light-transmitting resin layer, and the lenses are stacked on the IR cut filter, and
the first light-transmitting resin layer is provided so as to cover an end on a peripheral side of the IR cut filter.