Display Photo-Catalyst Layer for Self-Cleaning and Sterilizing

The patent combines the photo-catalyst layer with existing display components (gate electrode, source/drain electrodes, or pixel electrode) by forming them in the same film layer or integrating them into the same structural plane. This merging approach allows the display to gain environmental protection functions without adding separate independent components, thus reducing the increase in device complexity while maintaining reliability enhancement.

The patent implements multi-functionality by enabling the display structure to serve both its primary display function and additional environmental protection functions (sterilizing, deodorizing, anti-molding) through the integrated photo-catalyst layer. The same structural elements (substrates, electrodes) simultaneously support display operations and photo-catalytic environmental protection, reducing overall system complexity.

The patent applies preliminary action by forming the external metal layer in advance during the same manufacturing step as the gate electrode, source/drain electrodes, or pixel electrode. This preliminary formation of the metal layer allows subsequent heating to occur at a later stage when other display components are already in place, enabling precise control of the oxidation process without requiring complex coordinated manufacturing of all components simultaneously.

The patent utilizes parameter changes by controlling the heating process to transform the external metal layer into an oxide metal layer. By adjusting heating temperature, duration, and atmospheric conditions, the manufacturing process achieves precise control over the photo-catalyst layer formation, improving manufacturing precision while keeping the process relatively simple through well-established thermal oxidation techniques.