Photochromic Pattern for Transparent Display Light Control

The patent applies a photochromic pattern in the non-display areas that dynamically changes its light transmission properties in response to external illumination intensity. When ambient light is strong, the photochromic material undergoes a chemical change to reduce light transmission, thereby maintaining image contrast. When ambient light is weak, it returns to a high-transmission state to preserve the transparent display function. This dynamic adaptation resolves the contradiction between maintaining transparency and preserving contrast under varying illumination conditions.

The patent converts the harmful effect of high-intensity ambient light into a useful signal. The photochromic pattern detects the high illumination intensity and responds by reducing light transmission, thereby protecting the viewer's eyes while still allowing the display to function. The harmful high-brightness light that would otherwise cause eye damage is transformed into the triggering mechanism that activates the protective light-filtering function.

The patent merges the photochromic light-adjusting function directly into the non-display area structure of the display panel. Rather than adding a separate complex control system with sensors, processors, and active components, the photochromic material provides passive, automatic light transmission adjustment through its inherent photochemical properties. This integration achieves adaptability while minimizing structural complexity.