Image sensors including phase detection pixel

An image sensor comprising:

• a pixel array, the pixel array including:
• a first image sensing subpixel and a second image sensing subpixel provided in a substrate, each of the first and second image sensing subpixels including a photodiode therein;
• a first phase detection subpixel and a second phase detection subpixel provided in the substrate, each of the first and second phase detection subpixels including a photodiode therein;
• a first micro-lens disposed on the first image sensing subpixel in a first row;
• a second micro-lens disposed on the second image sensing subpixel in the first row;
• and
• a third micro-lens disposed on the first phase detection subpixel and the second phase detection subpixel in the first row, the third micro-lens being located adjacent to the first and second micro-lenses,
• wherein the first phase detection subpixel is located adjacent to the second phase detection subpixel, and
• wherein a first color filter layer disposed on the first image sensing subpixel and a second color filter layer disposed on the second image sensing subpixel have a same color,
• wherein the first image sensing subpixel constitutes a first image sensing shared pixel,
• the first image sensing shared pixel includes four first image sensing subpixels arranged in a 2×2 matrix form, and
• four first color filter layers having a same color are disposed on the four first image sensing subpixels.