Liquid discharge head and liquid discharge module

A liquid discharge head comprising:

• a substrate;
• a plurality of pressure chambers provided on a surface of the substrate and through which a first liquid and a second liquid flow;
• a pressure generating element provided on the surface of the substrate and configured to pressurize the first liquid;
• a discharge port communicating with at least one of the pressure chambers and through which the second liquid is discharged;
• and
• a liquid channel communicating with any one of the pressure chambers, wherein
• the liquid channel has a first supply channel used to supply the first liquid to a corresponding one of the pressure chambers, a second supply channel used to supply the second liquid to a corresponding one of the pressure chambers, a first collecting channel used to collect the first liquid from a corresponding one of the pressure chambers, and a second collecting channel used to collect the second liquid from a corresponding one of the pressure chambers,
• in the substrate,
• a first communication supply channel communicating with the first supply channel via a first communication supply opening and used to supply the first liquid to the first supply channel,
• a second communication supply channel communicating with the second supply channel via a second communication supply opening and used to supply the second liquid to the second supply channel,
• a first communication collecting channel communicating with the first collecting channel via a first communication collecting opening and used to collect the first liquid from the first collecting channel,
• a second communication collecting channel communicating with the second collecting channel via a second communication collecting opening and used to collect the second liquid from the second collecting channel,
• a first common supply channel communicating with each of a plurality of the first communication supply channels via a first common supply opening and used to supply the first liquid to the plurality of first communication supply channels,
• a second common supply channel communicating with each of a plurality of the second communication supply channels via a second common supply opening and used to supply the second liquid to the plurality of second communication supply channels,
• a first common collecting channel communicating with each of a plurality of the first communication collecting channels via a first common collecting opening and used to collect the first liquid from the plurality of first communication collecting channels, and
• a second common collecting channel communicating with each of a plurality of the second communication collecting channels via a second common collecting opening and used to collect the second liquid from the plurality of second communication collecting channels,
• are formed, and
• in the substrate, at least any one of a relationship that a central axis of the first communication supply opening is located closer to the corresponding one of the pressure chambers than a central axis of the first common supply opening, a relationship that a central axis of the second communication supply opening is located closer to the corresponding one of the pressure chambers than a central axis of the second common supply opening, a relationship that a central axis of the first communication collecting opening is located closer to the corresponding one of the pressure chambers than a central axis of the first common collecting opening, and a relationship that a central axis of the second communication collecting opening is located closer to the corresponding one of the pressure chambers than a central axis of the second common collecting opening is satisfied.