Display Panel Segmentation for Concurrent Touch Sensing and Imaging

The display panel is divided into first display area and second display area, with first pixels and second pixels respectively. The first data lines and second data lines are physically separated. This segmentation allows independent control and timing of display and touch functions in different spatial zones, resolving the contradiction between enabling touch sensing and maintaining display time.

The patent transitions from temporal division (separate display and touch periods) to spatial division (first and second display areas operating simultaneously). By adding the spatial dimension, both display and touch functions can occur in parallel without interfering with each other's time allocation.

The noise compensation is segmented by area: first noise compensation voltage is applied to second data lines to compensate for noise affecting second pixels during first pixel data writing, and second noise compensation voltage is applied to first data lines to compensate for noise affecting first pixels during second pixel data writing. This targeted segmentation improves efficiency and reduces unnecessary complexity.

The noise compensation voltage acts as an intermediary signal that counteracts the harmful electromagnetic interference from data voltage fluctuations. By introducing this compensating signal with opposite phase, the system neutralizes noise without requiring complete isolation or shielding, thus improving accuracy without proportionally increasing complexity.