US 11,817,468 B2
Image sensing device
Kyoung In Lee, Icheon-si (KR); Hoon Sang Oh, Icheon-si (KR); and Sung Joo Hong, Icheon-si (KR)
Assigned to SK HYNIX INC., Icheon-si (KR)
Filed by SK hynix Inc., Icheon-si (KR)
Filed on Jun. 25, 2021, as Appl. No. 17/358,733.
Claims priority of application No. 10-2020-0086983 (KR), filed on Jul. 14, 2020.
Prior Publication US 2022/0020795 A1, Jan. 20, 2022
Int. Cl. H01L 27/146 (2006.01); H04N 25/13 (2023.01)
CPC H01L 27/14621 (2013.01) [H01L 27/14645 (2013.01); H04N 25/134 (2023.01)] 20 Claims
OG exemplary drawing
 
1. An image sensing device, comprising:
a pixel array including a (2×2) array that includes two first pixels, a second pixel, and a third pixel, wherein the first to third pixels have a pixel area and include first to third optical filters that are configured to transmit light of different colors, respectively, and
wherein the second pixel or the third pixel includes a grid structure located along a boundary of the second pixel or the third pixel, and
wherein each of the first pixels includes a red optical filter and has a first light reception area that is greater than a second light reception area of the second pixel or a third light reception area of the third pixel.