US 12,223,685 B2
Sensing device
Chandra Lius, Miao-Li County (TW); and Yu-Tsung Liu, Miao-Li County (TW)
Assigned to InnoLux Corporation, Miao-Li County (TW)
Filed by InnoLux Corporation, Miao-Li County (TW)
Filed on Mar. 13, 2023, as Appl. No. 18/120,435.
Application 18/120,435 is a continuation of application No. 17/555,490, filed on Dec. 19, 2021, granted, now 11,625,903.
Claims priority of application No. 202110038147.X (CN), filed on Jan. 12, 2021.
Prior Publication US 2023/0215124 A1, Jul. 6, 2023
Int. Cl. G06V 40/13 (2022.01); G02B 27/09 (2006.01); G06V 10/147 (2022.01)
CPC G06V 10/147 (2022.01) [G02B 27/0961 (2013.01); G06V 40/1318 (2022.01)] 20 Claims
OG exemplary drawing
 
1. 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.