Quantum Dot Color Conversion Structure With Reflective Groove Layout

A bank structure is introduced as an intermediary component between the light source and quantum dots. This bank structure includes a reflective layer that redirects light paths, allowing quantum dots to receive excitation light indirectly rather than through direct exposure. The bank structure acts as a mediator that maintains the necessary light-quanta dot interaction for color conversion while protecting quantum dots from direct light contact that causes instability.

The bank structure incorporates curved surfaces, specifically a curved reflective surface that redirects light at optimized angles toward the quantum dots. This curvature enables better light trapping and multiple light paths, increasing the effective light interaction with quantum dots and improving luminous efficiency. The curved geometry is achieved through standard manufacturing techniques like reflow processes, maintaining ease of manufacture while significantly enhancing optical performance.

The reflective layer of the bank structure converts the potentially harmful effect of light leakage into a beneficial effect. Instead of allowing excitation light to escape uselessly, the reflective layer redirects leaked light back toward the quantum dots, converting energy loss into additional excitation opportunities. This increases excitation efficiency while reducing net energy leakage, as the same light energy is utilized multiple times.