Dual-Gate Display Panel Light Sensing for Higher Aperture Ratio

The patent combines the light sensing transistor and switch transistor into a single dual-gate transistor structure. The first gate serves as the light sensing gate while the second gate serves as the switch control gate, allowing both functions to be integrated in one device. This merging eliminates the need for separate transistors and their interconnecting metal layers, significantly reducing the area occupied by the light sensing module while maintaining independent control capability through the two gates.

The dual-gate transistor is designed to perform multiple functions simultaneously. It acts as both a light sensing element (through the first gate receiving light signals) and a switch (through the second gate receiving control signals). This multi-functionality allows a single transistor to replace what would traditionally require two separate transistors, thereby reducing the overall area of the light sensing module while preserving both the light sensing and switching functions.

The patent merges the light sensing transistor and switch transistor into a single dual-gate transistor, eliminating the need for separate metal layer connections between two distinct transistor structures. The integrated structure reduces the total area required while maintaining all necessary circuit functions through the shared active layer and electrode connections.

The patent utilizes vertical stacking of functional layers within the dual-gate transistor structure. By organizing the first gate, active layer, second gate, and electrode connections in vertical layers rather than horizontal separation, the design achieves three-dimensional integration. This dimensional reorganization allows the circuit to function with a smaller footprint area, thereby improving the aperture ratio while maintaining reliability.