Patent ID: 9349762
Filing Date: 2016-05-24
CPC Classification: H01L,H04N

Claim Text:
1. A pixel array of an image sensor comprising: an active pixel block which includes a plurality of active pixels, arranged in rows and columns and configured to output an electrical signal corresponding to an optical signal, and at least one dark pixel configured to generate a local dark current, the local dark current indicating a dark current generated based on a locally different property of a pixel; and an optical black (OB) pixel block which is arranged around the active pixel block and is configured to generate a global dark current, wherein the OB pixel block includes at least one column OB pixel block, arranged corresponding to the columns of the active pixels and configured to generate a global dark current existing between the columns of the active pixels, and at least one frame OB pixel block, arranged corresponding to the rows of the active pixels and configured to generate a global dark current existing between frames, the global dark current indicating a dark current generated by entire active pixels of the active pixel block, and wherein the at least one dark pixel comprises at least one fully covered pixel, and at least one partially covered pixel that is positioned adjacent to the at least one fully covered pixel.