US 12,369,417 B2
Sensing device and electronic device with openings that overlap sensing elements
Yu-Tsung Liu, Miao-Li County (TW); and Te-Yu Lee, Miao-Li County (TW)
Assigned to INNOLUX CORPORATION, Miao-Li County (TW)
Filed by InnoLux Corporation, Miao-Li County (TW)
Filed on Dec. 22, 2021, as Appl. No. 17/558,872.
Claims priority of application No. 202110112148.4 (CN), filed on Jan. 27, 2021.
Prior Publication US 2022/0238586 A1, Jul. 28, 2022
Int. Cl. H10F 39/00 (2025.01); G02B 19/00 (2006.01); G06F 3/042 (2006.01); G06V 40/13 (2022.01); H10F 39/12 (2025.01)
CPC H10F 39/8063 (2025.01) [G02B 19/0009 (2013.01); G02B 19/0076 (2013.01); G06F 3/0421 (2013.01); G06V 40/1318 (2022.01); H10F 39/198 (2025.01); H10F 39/8057 (2025.01); H10F 39/806 (2025.01); G02B 19/0014 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A sensing device, comprising:
a sensing circuit;
a plurality of sensing elements;
a plurality of light-collecting elements for collecting lights to the plurality of sensing elements;
a first light-shielding layer disposed between the plurality of sensing elements and the plurality of light-collecting elements;
a second light-shielding layer disposed on the first light-shielding layer; and
a third light-shielding layer disposed on the second light-shielding layer,
wherein the plurality of sensing elements are configured to generate a plurality of sensing signals according to the lights that are collected, and output the plurality of sensing signals as a whole to the sensing circuit,
wherein the plurality of sensing elements are electrically connected to the same terminal of the sensing circuit,
wherein the first light-shielding layer has a plurality of first openings overlapping the plurality of sensing elements, the second light-shielding layer has a plurality of second openings overlapping the plurality of first openings, and the third light-shielding layer has a plurality of third openings overlapping the plurality of second openings,
wherein a width of one of the plurality of second openings is greater than or equal to 0.5 times a width of one of the plurality of first openings and less than or equal to 2.5 times the width of one of the plurality of first openings, and a width of one of the plurality of third openings is greater than or equal to 2 times the width of one of the plurality of first openings and less than or equal to 4 times the width of one of the plurality of first openings,
wherein the width of one of the plurality of first openings is greater than or equal to 2 micrometers and less than or equal to 6 micrometers.