Modulating device including two scan lines that transmit a first scanning signal to switches of two rows

A modulating device, comprising:

• a substrate having a surface;
• a plurality of modulators, disposed on the surface of the substrate;
• a plurality of switches, disposed on the surface of the substrate, wherein each of the modulators corresponds to each of the switches;
• a driving circuit, disposed on the surface of the substrate and configured to drive the switches,
• wherein the driving circuit drives switches of more than two rows among the plurality of switches within a time period,
• wherein each of the modulators comprises a pixel circuit and a working element,
• wherein the pixel circuit is electrically connected to the working element,
• wherein the working element is a varactor;
• a plurality of scan lines disposed on the surface of the substrate, and connected to the driving circuit, wherein the plurality of scan lines comprise a first scan line, a second scan line, and a plurality of third scan lines,
• wherein the first scan line and the second scan line transmit a first scanning signal to switches of two rows among the plurality of switches, and
• wherein the first scan line and the second scan line which transmit the same first scanning signal are separated by the plurality of third scan lines, and the plurality of third scan lines receive a plurality of scanning signals respectively different from the first scanning signal;
• and
• an electrical connection structure, disposed on the surface of the substrate,
• wherein the first scan line is connected to the second scan line through the electrical connection structure,
• wherein the electrical connection structure comprises:
• a connection line,
• a first via, connected between the first scan line and a first end of the connection line, and
• a second via, connected between the second scan line and a second end of the connection line,
• wherein in a top view, the first via has a first width along a first direction parallel to the surface of the substrate, the connection line has a second width along the first direction, and the first width is greater than the second width.