Button Structure

A button structure, comprising:

• a keycap;
• an elastic body;
• a scissor mechanism comprising an inner scissor leg and an outer scissor leg;
• and
• a piezoresistive film sensor arranged on a support plate;
• said scissor mechanism and said elastic body are arranged between said keycap and said piezoresistive film sensor;
• said piezoresistive film sensor comprises a first pressure sensing area and a second pressure sensing area;
• wherein
• said elastic body corresponds to said first pressure sensing area and said scissor mechanism corresponds to said second pressure sensing area, such that, when a pressure is applied to said keycap, a first pressure acts on said elastic body to generate pressure on said first pressure sensing area;
• and
• a second pressure acts on said scissor mechanism to generate pressure on said second pressure sensing area;
• and
• said button structure further comprises a thin film circuit layer;
• said thin film circuit layer is disposed on said piezoresistive thin film sensor and connects said elastic body to said inner scissor leg and said outer scissor leg;
• and
• said thin film circuit layer is configured to transmit an applied pressure to said piezoresistive film sensor.