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US 12,223,685 B2Granted
Sensing device
AssigneeInnolux Corporation
InventorsChandra Lius, Yu-Tsung Liu
Life of this patent
Estimating the term…
Abstract
A sensing device includes a plurality of sensing sets having a plurality of lenses and a plurality of sensing units. The sensing units are configured to collect reflected light which pass through the lenses. Each sensing set adopts a structure which includes one sensing unit and multiple lenses for providing fingerprint sensing with high accuracy.
Claims20
A sensing device, comprising:
- a plurality of sensing sets, wherein at least one sensing set among the plurality of sensing sets includes at least two lenses and a sensing unit and is configured to allow a detected light to pass through the at least two lenses and be collected by the sensing unit;
- and
- at least two holes disposed between the at least two lenses and the sensing unit, and including a first hole and a second hole, wherein:
- the sensing unit comprises:
- an upper electrode;
- a lower electrode;
- a lightly-doped intrinsic layer disposed between the upper electrode and the lower electrode;
- a first semiconductor layer disposed between the upper electrode and the lightly-doped intrinsic layer;
- a second semiconductor layer disposed between the lower electrode and the lightly-doped intrinsic layer;
- and
- a conductive layer disposed between the first semiconductor layer and the upper electrode;
- a width of the conductive layer is greater than a width of the upper electrode;
- a distance between two neighboring lenses of the at least two lenses in the plurality of sensing set is not zero;
- the at least two lenses include a first lens corresponding to the first hole and a second lens corresponding to the second hole;
- and
- a first distance d1 between the sensing unit and the first hole, a second distance d2 between the first lens and the first hole, a width L of the first lens and a third distance m between the first lens and the second lens conform to an equation represented by 0<d1/d2<2*(L+m)/L.
13 more elements
A display device, comprising:
- a display panel;
- a sensing device disposed under the display panel and comprising a plurality of sensing sets, wherein at least one sensing set among the plurality of sensing sets includes at least two lenses and a sensing unit and is configured to allow a detected light to pass through the at least two lenses and be collected by the sensing unit;
- and
- at least two holes disposed between the at least two lenses and the sensing unit, and including a first hole and a second hole, wherein:
- the sensing unit comprises:
- an upper electrode;
- a lower electrode;
- a lightly-doped intrinsic layer disposed between the upper electrode and the lower electrode;
- a first semiconductor layer disposed between the upper electrode and the lightly-doped intrinsic layer;
- a second semiconductor layer disposed between the lower electrode and the lightly-doped intrinsic layer;
- and
- a conductive layer disposed between the first semiconductor layer and the upper electrode;
- a width of the conductive layer is greater than a width of the upper electrode;
- a distance between two neighboring lenses of the at least two lenses in the plurality of sensing set is not zero
- the at least two lenses include a first lens corresponding to the first hole and a second lens corresponding to the second hole;
- and
- a first distance d1 between the sensing unit and the first hole, a second distance d2 between the first lens and the first hole, a width L of the first lens and a third distance m between the first lens and the second lens conform to an equation represented by 0<d1/d2< (L+m)/L.
14 more elements
Dependencies are inferred from the claim text.