Image sensor

An image sensor comprising:

• a substrate including a first surface and a second surface opposing each other in a first direction, the substrate including a plurality of unit pixels arranged in a direction parallel to the first surface;
• a first photodiode and a second photodiode inside of the substrate in each of the plurality of unit pixels and separated from each other in a second direction, perpendicular to the first direction;
• and
• a device isolation film between the plurality of unit pixels,
• wherein among the plurality of unit pixels, at least a pair of pixels that are side-by-side in a third direction, perpendicular to the first direction and the second direction, share a plurality of microlenses side-by-side in the second direction, and
• each of the plurality of microlenses being on two first photodiodes or two second photodiodes.

An image sensor comprising:

• a pixel array including a plurality of pixel groups arranged in a direction parallel to an upper surface of a substrate, each of the plurality of pixel groups including at least one unit pixel;
• and
• a pixel circuit obtaining a pixel signal from unit pixels included in the plurality of pixel groups,
• wherein the unit pixels are defined by a device isolation film extending in a first direction, perpendicular to an upper surface of the substrate,
• each of the unit pixels includes a first photodiode and a second photodiode spaced apart from each other in a second direction, perpendicular to the first direction, and a color filter on a first surface of the substrate,
• at least one of the plurality of pixel groups includes a plurality of shielding pixels including a plurality of light shielding films overlapping at least a portion of the first photodiode and the second photodiode in the first direction, and
• the plurality of shielding pixels include the color filter having a color different from a color of the color filter included in the unit pixels not including the light shielding film.