Membrane switch, key and keyboard

A key, comprising a membrane switch, the membrane switch comprising:

• a flexible substrate;
• a switch trace layer, disposed on a front surface of the flexible substrate, and comprising a plurality of conductive contacts that not in contact with each other;
• a flexible key, covering the switch trace layer, and defining a press cavity with the flexible substrate;
• and a conductor, disposed in the press cavity, and configured to be connected to the plurality of conductive contacts in response to the flexible key being pressed, such that the switch trace layer is conducted;
• further comprising a light-emitting assembly;
• wherein the light-emitting assembly is integrated on the flexible substrate and configured to generate a light beam, the light-emitting assembly comprises a light-emitting circuit integrated on a back surface of the flexible substrate, and the front surface of the flexible substrate is provided with a plurality of sites that are conducted to the light-emitting circuit;
• wherein the plurality of sites surrounding outside the flexible key, and a built-in drive IC-mounted LED is mounted on each of the sites.

A keyboard, comprising a keyboard substrate, the keyboard substrate being provided with a plurality of keys, the key comprising a membrane switch;

• wherein the membrane switch comprises:
• a flexible substrate;
• a switch trace layer, disposed on a front surface of the flexible substrate, and comprising a plurality of conductive contacts that not in contact with each other;
• a flexible key, covering the switch trace layer, and defining a press cavity with the flexible substrate;
• and a conductor, disposed in the press cavity, and configured to be connected to the plurality of conductive contacts in response to the flexible key being pressed, such that the switch trace layer is conducted;
• further comprising a light-emitting assembly;
• wherein the light-emitting assembly is integrated on the flexible substrate and configured to generate a light beam, the light-emitting assembly comprises a light-emitting circuit integrated on a back surface of the flexible substrate, and the front surface of the flexible substrate is provided with a plurality of sites that are conducted to the light-emitting circuit;
• wherein the plurality of sites surrounding outside the flexible key, and a built-in drive IC-mounted LED is mounted on each of the sites.