Keycap and manufacturing method thereof and keyswitch

A keycap, comprising:

• an inner keycap member comprising an inner body and four inner sidewalls disposed on four sides of the inner body and extending downward from the inner body;
• at least one of the four inner sidewalls having a bottom surface not co-planar with a bottom surface of the inner body, and comprising an inner keycap positioning part;
• and
• an outer keycap member comprising an outer body and four outer sidewalls disposed on four sides of the outer body;
• the outer body being corresponding to the inner body;
• the four outer sidewalls being corresponding to the four inner sidewalls respectively;
• at least one of the four outer sidewalls comprising an outer keycap positioning part connecting to the inner keycap positioning part;
• wherein the outer keycap member covers the inner keycap member;
• the inner keycap member or the outer keycap member comprises a character layer with a character pattern, and the character layer does not extend outside edges of the inner sidewalls;
• wherein the outer keycap positioning part is a recess, and the inner keycap positioning part is a protrusion extending into the recess;
• wherein the recess is depressed from an inner surface of the at least one of the four outer sidewalls, and the protrusion projects from an outer surface of the at least one of the four inner sidewalls corresponding to the inner surface.

A keyswitch, comprising:

• a base plate;
• a circuit board disposed on the base plate;
• an elastic member disposed on the circuit board;
• a keycap disposed on the elastic member, comprising:
• an inner keycap member comprising an inner body and an inner sidewall extending toward the base plate;
• an outer keycap member disposed on the inner keycap member and comprising an outer body covering a surface of the inner body and an outer sidewall covering a surface of the inner sidewall;
• and
• a character pattern disposed corresponding to the outer body;
• and
• a supporting component, having two ends respectively connected to the base plate and the keycap;
• wherein the outer keycap member is provided with a recess, and the inner keycap member is provided with a protrusion extending into the recess;
• wherein the recess is depressed from an inner surface of the outer sidewall, and the protrusion projects from an outer surface of the inner sidewall corresponding to the inner surface of the outer sidewall.