OLED Pixel Lens and Side-Mirror Anode for Light Extraction

The patent applies curvature by introducing a convex spherical lens on the outer surface and creating a concave portion in the anode. The convex lens refracts outgoing light to improve extraction efficiency and viewing angle, while the concave anode structure reflects trapped light back into the emission layer. This curvature-based modification resolves the contradiction by maintaining relative structural simplicity while dramatically improving light extraction performance.

The patent transitions from a two-dimensional flat anode structure to a three-dimensional structure with a concave portion and convex lens. This dimensional change allows light to be reflected and refracted at multiple angles and positions, extracting light that would otherwise be trapped in the planar configuration, thereby improving light extraction efficiency without significantly complicating the manufacturing process.

The patent converts the harmful UV rays into a protective function by introducing a UV shielding layer. This layer specifically absorbs or blocks UV radiation while allowing visible light to pass through, thereby protecting the light-emitting diode from degradation without significantly affecting the display performance. The shielding layer transforms the harmful UV environment into a protected operating condition.

The UV shielding layer acts as an intermediary between the external environment and the light-emitting diode. It selectively interacts with UV radiation, absorbing or reflecting it before it can reach and damage the LED, while remaining transparent to the useful visible light. This intermediary layer resolves the contradiction by providing protection without adding significant structural complexity.