Display Window Resin Layer Carbonization for Light Shielding

The patent replaces the conventional mechanical approach of forming a light shielding pattern with predetermined thickness through deposition or coating processes with a chemical approach using a resin layer that is carbonized to form the light shielding pattern. This substitution eliminates the stepped portions generated by the mechanical deposition process, thereby improving window reliability while maintaining the light blocking function.

The patent changes the physical and chemical parameters of the resin layer through carbonization process. By controlling the carbonization conditions, the resin layer transforms into a light shielding pattern with appropriate optical properties (light blocking function) while maintaining a thickness that prevents stepped portions, thus resolving the contradiction between light blocking performance and reliability.

The carbonization process transforms the resin layer into a light shielding pattern with controlled optical parameters. The carbonized structure provides effective light blocking capability while the gradual transition and uniform carbonization prevent discoloration, maintaining acceptable light transmittance in the transmission area and improving overall appearance.

The patent uses a resin layer as a precursor material that is then carbonized to form the light shielding pattern. This composite approach combines the advantages of the resin layer (uniform thickness, good adhesion) with the properties of carbonized material (effective light blocking, stable chemical structure), achieving both light blocking capability and maintained transmittance.

The patent replaces the mechanical deposition process with a chemical carbonization process. The resin layer is applied using conventional coating methods (maintaining ease of manufacture), then carbonized to form the light shielding pattern. This chemical transformation eliminates the stepped portions issue while keeping the manufacturing process relatively simple and industrially viable.

The patent applies the resin layer in advance before the light shielding pattern is actually formed through carbonization. This preliminary action allows the resin layer to be uniformly deposited across the window surface, and subsequent carbonization transforms it into the final light shielding pattern without generating stepped portions, thus improving manufacturing precision while maintaining process simplicity.