Glow-in-the dark display element

A method of exposing and processing a display element which will glow-in-the-dark comprising providing a display element comprising a support, a phosphorescent material, and at least one layer containing a silver halide emulsion, wherein said display element also comprises a filter dye which filters electromagnetic energy at a wavelength which excites the phosphorescent material, said filter dye being contained in a layer above the phosphorescent material;

• exposing said photographic element to form a latent image;
• and processing said exposed photographic element in a manner which will develop the latent image and remove the filter dye.

A method of exposing and processing a display element which will glow in the dark comprising providing a display element comprising a support, a phosphorescent material, and a layer containing a silver halide emulsion, said silver halide emulsion being primarily sensitive to electromagnetic energy at wavelengths which do not excite the phosphorescent material;

• exposing said photographic element to a light source which will cause the silver halide emulsion to form a latent image but which will not excite the phosphorescent material;
• and processing said exposed photographic element in a manner which will develop the latent image.

A display element comprising a support, a phosphorescent material, and at least one layer containing a silver halide emulsion, wherein the display element also comprises a filter dye which absorbs energy at electromagnetic wavelengths which excite the phosphorescent material, said filter dye being contained in a layer above the phosphorescent material.

A display element comprising a support, a phosphorescent material, and at least one layer containing a silver halide emulsion, wherein the silver halide emulsion is primarily sensitive to electromagnetic energy at wavelengths which do not excite the phosphorescent material and wherein, after development of the display element, the phosphorescent material will glow in the dark after excitation by ambient light.