An imaging system includes a plurality of gate lines, a plurality of data lines, a common ground line, a plurality of capacitors and an array of pixels that are alternately arranged so that the common ground line is shared by the plurality of capacitors and shared by at least two rows or columns of pixels. A method of forming an array of pixels in an imaging system includes forming a plurality of gate lines, forming a plurality of data lines, forming a common ground line, forming a plurality of capacitors and forming the array of pixels to be alternately arranged so that the common ground line is shared by the plurality of capacitors and shared by at least two rows of pixels.