3D Touch Panel UI for Accurate Pulling Operation Detection

The patent introduces a new detection dimension by measuring capacitance at multiple positions (including side surfaces and bottom surface) rather than relying solely on top surface detection. This multi-dimensional capacitance measurement approach compensates for the increased distance caused by the cantilevered structure, maintaining detection accuracy while preserving the three-dimensional shape.

The existing capacitance sensor is made multi-functional by configuring it to detect not only pressing operations but also pulling operations through side surface and bottom surface capacitance changes. This allows a single sensor to perform multiple detection functions without adding separate sensors, resolving the contradiction between maintaining simple structure and achieving accurate pulling detection.

The patent makes the existing capacitance sensor multi-functional by configuring it to detect pulling operations through side surface and bottom surface capacitance changes in addition to its original pressing operation detection function. This eliminates the need for separate sensors on the back surface, maintaining detection accuracy while avoiding increased structural complexity.

The patent merges the pressing operation detection function and pulling operation detection function into a single capacitance sensor system. By utilizing the sensor's ability to detect capacitance changes from multiple surfaces (top, side, and bottom), the patent combines multiple detection functions into one integrated system, avoiding the need for separate sensors and reducing overall structure complexity.