In-cell Touch Sensor Edge Detection via Mirror Copying

The patent applies the copying principle by creating virtual touch data through mirror copying of actual touch data from electrodes adjacent to the edge. The algorithm copies touch data from valid electrode regions to virtual electrode positions outside the touch sensor active area, effectively extending the touch detection coverage to match the pixel active area without adding physical electrodes or increasing circuit complexity.

The patent uses an algorithmic intermediary approach where virtual touch data acts as a mediator between the limited physical electrode array and the larger pixel active area. By introducing virtual electrode positions and using mirror copying algorithms, the system bridges the gap between the smaller touch sensor active area and the larger display panel, enabling accurate edge touch detection without physically extending the electrode array.

The patent applies dimensionality change by extending the two-dimensional electrode array concept into a virtual third dimension through mirror copying. By creating virtual electrode positions that mirror the physical electrode arrangement across the edge boundaries, the algorithm effectively adds spatial dimensions to the touch detection coverage, allowing the system to detect touches across the entire pixel active area despite the reduced physical electrode pitch ratio.