Display Panel Light-Concentrating Structure for Higher Photosensitivity

The patent introduces a light-concentrating structure with protrusions that extend vertically from the substrate surface, adding a third dimension (height) to the light reception area. This allows light to be concentrated from multiple angles onto the channel portion, significantly improving photosensitivity without requiring a larger planar area or more complex circuit architecture.

The light-concentrating structure acts as an intermediary optical element between the incident light and the photosensitive transistor channel. The protrusions refract and concentrate light rays onto the channel portion, enhancing the light interaction without directly modifying the transistor structure itself, thus improving photosensitivity while maintaining relatively simple device architecture.

Instead of increasing the planar area of the photosensitive transistor, the patent utilizes the vertical dimension by creating protrusions that extend upward from the substrate. This three-dimensional light-concentrating structure increases the effective light reception area without occupying additional pixel area, thereby improving photosensitivity while maintaining compact pixel design.

The patent changes the geometric parameters of the light-concentrating structure (protrusion height, width, spacing) to optimize light concentration efficiency. By adjusting these parameters, the structure maximizes light reception within the available pixel area, improving photosensitivity without requiring larger device dimensions.