Input Sensor Mesh Pattern Design for Active Pen Detection

The patent applies local quality by implementing different mesh patterns in different areas of the sensing electrode. Specifically, a first mesh pattern with smaller cell sizes is used in crossing areas where multiple electrodes intersect, while a second mesh pattern with larger cell sizes is used in non-crossing areas. This localized differentiation optimizes capacitance sensing in crossing areas for better active pen detection while maintaining acceptable performance elsewhere, thereby improving overall sensing performance without requiring complete redesign of the entire electrode structure.

The patent segments the mesh pattern into distinct regions based on their functional requirements. The sensing electrode is divided into crossing areas and non-crossing areas, each with appropriately sized mesh patterns. This segmentation allows the system to optimize each region independently - using finer mesh where electrode intersections create complex capacitance fields, and coarser mesh where single electrodes dominate the sensing characteristics.

The patent implements local quality by applying different mesh cell sizes in different areas. In crossing areas, smaller mesh cells provide the enhanced sensing accuracy needed for detecting active pen inputs, while in non-crossing areas, larger mesh cells are sufficient and easier to manufacture. This approach concentrates the manufacturing precision requirements only where they are most critical, rather than demanding high precision across the entire sensing electrode.

The patent applies partial action by providing enhanced mesh patterns only in the specific areas where they are needed (crossing areas), rather than uniformly across the entire sensing electrode. This partial optimization achieves the necessary sensing precision for active pen detection without incurring the manufacturing costs and complexity of high-precision fabrication everywhere.

The patent achieves multi-functionality by designing a mesh pattern system that simultaneously optimizes for both touch input detection and active pen input detection. The combination of first and second mesh patterns in crossing and non-crossing areas creates a sensing electrode that can accurately detect both finger touches and active pen inputs, making the system universally applicable to multiple input methods without requiring separate sensing systems for each input type.

The patent uses local quality to enhance sensing performance in specific areas (crossing areas) without redesigning the entire electrode structure. By maintaining the second mesh pattern in non-crossing areas and only introducing the first mesh pattern in crossing areas, the patent minimizes the overall structural complexity while achieving enhanced performance where it matters most for active pen detection.