OPTICALLY COLOR DEVELOPING ELEMENT
PURPOSE:To enable the writing and vanishment of a fine and high density pattern by forming a layer transmitting no ultraviolet light on one side of a two-layered structure consisting of a color developing layer and an ion feeding source formed in contact with the color developing layer, irradiating...
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Format: | Patent |
Sprache: | eng |
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Zusammenfassung: | PURPOSE:To enable the writing and vanishment of a fine and high density pattern by forming a layer transmitting no ultraviolet light on one side of a two-layered structure consisting of a color developing layer and an ion feeding source formed in contact with the color developing layer, irradiating light from the other side to develop color, and impressing voltage to the structure to vanish the color. CONSTITUTION:A layer transmitting no ultraviolet light is formed on one side of a two-layered structure consisting of a color developing layer 1 and an ion feeding source 2 formed in contact with the layer 1 to obtain a color developing element having a multilayered structure. Light is irradiated on the element from the side not covered with the layer transmitting no ultraviolet light to develop color, and the color is vaniched by impressing an electric field to the two-layered structure. Ultraviolet light of |
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