Image sensor including pixel circuit, method of operating image sensor, and electronic device including image sensor

An image sensor comprising:

• a pixel array including a first pixel comprising first and second sub-pixels and a second pixel comprising third and fourth sub-pixels;
• and
• a row driver configured to provide first and second transfer gate signals to the first to fourth sub-pixels via first and second transmission lines,
• wherein the first and second sub-pixels are configured to share a first-color color filter and a first microlens,
• wherein the third and fourth sub-pixels are configured to share a second-color color filter and a second microlens,
• wherein the first-color is the same as the second-color,
• wherein the first sub-pixel and the fourth sub-pixel are configured to receive the first transfer gate signal via the first transmission line,
• wherein the second sub-pixel and the third sub-pixel are configured to receive the second transfer gate signal via the second transmission line, and
• wherein the first to fourth sub-pixels are sequentially arranged in a first row.

An image sensor comprising:

• a pixel array including a first pixel comprising first and second sub-pixels, a second pixel comprising third and fourth sub-pixels, and a third pixel comprising fifth and sixth sub-pixels;
• and
• a row driver configured to provide first to third transfer gate signals to the first to fourth sub-pixels via first to third transmission lines,
• wherein the first and second sub-pixels are configured to share a first green color filter and a first microlens,
• wherein the third and fourth sub-pixels are configured to share a second green color filter and a second microlens,
• wherein the fifth and sixth sub-pixels are configured to share a third green color filter and a third microlens,
• wherein the first sub-pixel and the fourth sub-pixel are configured to receive the first transfer gate signal via the first transmission line,
• wherein the second sub-pixel and the third sub-pixel are configured to receive the second transfer gate signal via the second transmission line,
• wherein the first to fourth sub-pixels are sequentially arranged in a first row,
• wherein the first sub-pixel is directly adjacent to the fifth sub-pixel in a first column, and
• wherein each of the first sub-pixel and the fifth sub-pixel are disposed on a left side of each of the first pixel and the third pixel in a plan view.