Display Panel Layer Sharing for Efficient Fingerprint Recognition

The patent merges the photosensitive device structure with the light-emitting layer structure by sharing electron and hole transporting layers, charge generating layers, and electrode layers between the two devices. This integration reduces the distance between the photosensitive device and the finger for improved fingerprint recognition, while simultaneously reducing overall material usage and manufacturing complexity through the shared layered architecture.

The patent implements multi-functionality by designing a unified layered structure that serves both light-emitting and photosensitive functions. The shared electron transporting layer, hole transporting layer, charge generating layers, and electrode layers enable the same structural components to perform dual roles, reducing device complexity while maintaining both display and fingerprint recognition capabilities.

The patent merges the electron and hole generating layers between the light-emitting and photosensitive devices, allowing these layers to serve both functions simultaneously. This shared structure improves manufacturing efficiency by reducing the number of deposition steps and material layers, while the distinct electrode connections and circuit pathways maintain proper functional separation between the two device types.

While sharing the generating layers, the patent segments the electrode structures and circuit connections to maintain functional independence. The light-emitting device and photosensitive device have separate electrode configurations and connection pathways, ensuring that the shared generating layers do not compromise the functional separation needed for independent operation of each device type.