Flexible Electromagnetic Induction Sensor for Thin OLED Displays

The patent applies this principle by replacing the traditional thick electromagnetic induction sensor portion with a thin-film-based sensor structure. The sensor portion is constructed using thin film layers including a substrate, electrode patterns, and dielectric layers, achieving the required electromagnetic induction functionality with a thickness reduced to 100-200 um while maintaining sensor performance.

The patent replaces the mechanical/thick-structure sensor portion with an electromagnetic field-based thin film system. By using conductive polymer layers and electrode patterns that generate electromagnetic fields, the system achieves the same sensing function through electromagnetic induction rather than through physical thickness, thereby reducing the overall device thickness.

The patent uses thin film structures for the sensor portion, which are inherently more flexible and easier to manufacture than thick structures. The thin film layers can be deposited using standard semiconductor fabrication processes, reducing manufacturing complexity and cost while maintaining the required structural integrity through proper layer design and material selection.

The patent employs composite material structures combining conductive polymers, dielectric layers, and substrate materials to achieve both robustness and flexibility. This composite approach allows optimization of each layer's thickness and material properties to balance mechanical strength, flexibility, and manufacturability, thereby reducing production costs compared to traditional single-material thick structures.

The patent implements a thin film-based sensor portion that inherently possesses flexibility. The thin film structure can bend and deform without breaking, allowing the overall display device to be flexible while the sensor portion maintains its electromagnetic induction functionality through the thin conductive polymer layers and electrode patterns.

The patent replaces the thick mechanical sensor structure with a thin electromagnetic field-based system that is naturally more flexible. The electromagnetic induction mechanism works effectively in thin film configurations, enabling the sensor to function while allowing the device to be bent or flexed, thereby achieving both functionality and flexibility.