Touch Panel Shape Memory Wire Deformation

The patent applies curvature by deforming the flat touch panel surface into a curved or three-dimensional shape at specific regions. Shape memory wires are used to create localized curved surfaces that provide tactile feedback to users, while the overall panel remains manufacturable using standard processes. This resolves the contradiction by adding curvature only where needed for tactile feedback rather than making the entire panel curved.

The patent implements local quality by applying shape memory wires only at specific positions where tactile feedback is needed, rather than making the entire touch panel curved or textured. The touch panel maintains a flat surface in most areas for easy manufacturing, while localized regions have curved surfaces for improved tactile feedback. This allows different parts of the panel to have different surface properties.

The patent segments the shape memory wire structure into two separate orthogonal layers (first layer with wires in one direction, second layer with wires in perpendicular direction). This segmentation enables multi-point input and local deformation at multiple positions simultaneously, while each individual layer remains relatively simple in structure. The layered segmentation resolves the contradiction by distributing the complexity across multiple simple components rather than requiring a single complex structure.

The patent adds a dimensional aspect by arranging shape memory wires in two orthogonal directions (X-axis and Y-axis) in separate layers. This two-dimensional wire arrangement enables control of deformation at multiple points across the panel surface, providing multi-point input capability. The dimensional approach allows complex functionality to be achieved through simple repeated patterns in different directions.

The patent segments the control system into independent control circuits for each shape memory wire or wire group, allowing simultaneous control of multiple wires. This segmentation enables multi-point deformation to occur at the same time while maintaining efficient processing. Each segment can be controlled independently based on touch detection results, resolving the contradiction between processing speed and multi-point capability.

The patent implements dynamic control where the system can selectively activate different shape memory wires based on real-time touch detection. The control system dynamically determines which wires to activate and when, enabling rapid switching between single-point and multi-point deformation modes. This dynamic approach allows the system to process multiple events efficiently while maintaining the ability to deform multiple points simultaneously.

The patent merges the shape memory wire structure directly with the touch panel assembly, eliminating the need for a separate external frame. The shape memory wires are integrated within the touch panel structure itself, allowing them to expand and contract within the existing panel boundaries. This integration resolves the contradiction by providing tactile feedback through embedded wires rather than requiring an additional external framing structure.

The patent nests the shape memory wires within the existing touch panel structure, placing them between the display and the touch-sensitive surface. The wires are contained within the panel's internal structure, utilizing the existing space and framework of the touch panel assembly. This nesting approach provides tactile feedback functionality without requiring an external frame, as the wires operate within the boundaries of the existing device structure.