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US 5,077,147 AGranted
Luminescent screen
AssigneePioneer Electronic Corporation
InventorsSatoru Tanaka, Fumio Matsui, Yasushi Murata
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AssigneePioneer Electronic Corporation
InventorsSatoru Tanaka, Fumio Matsui, Yasushi Murata
Estimating the term…
A luminescent screen includes a plurality of columnar luminescent elements made of a transparent material which contains a substance capable of emitting luminescent light in response to stimulating light applied thereto, the columnar luminescent elements having central axes parallel to each other and having adjacent sides held against each other. Emitted luminescent light is prevented from leaking in a direction normal to the longitudinal direction of the columnar luminescent elements, thereby increasing the brightness of the entire luminescent screen. Since the columnar luminescent elements of the luminescent screen are not integrally joined as a continuous unitary structure, any leaking luminescent light from the adjacent luminescent elements or regions is reduced.
A luminescent screen comprising a plurality of columnar luminescent elements each being made of a mixture of a transparent resin and a luminescent substance dispersed in said transparent resin, said luminescent substance being capable of emitting luminescent light when stimulating light is applied thereto, said columnar luminescent elements being disposed in contact with one another in such a manner that the longitudinal axes of said columnar luminescent elements lie parallel to one another in the screen plane.
Dependencies are inferred from the claim text.