To provide a spontaneous light emitting screen which is excellent in visibility of a video and durability thereof.SOLUTION: A spontaneous light emitting screen 10 includes a laminate structure such that a first transparent base material 11, a phosphor layer 13 containing a matrix and a phosphor that can be excited by ultraviolet rays at a wavelength of 400 nm, a resin layer 15 which contains a resin and no phosphor and has an ultraviolet transmission ratio at a wavelength of 400 nm of 20% or more, an ultraviolet absorption layer 17 containing an ultraviolet absorber which can absorb a matrix and ultraviolet rays at a wavelength of 400 nm, and a second transparent base material 19 are layered in this order, in which at least one matrix of the phosphor layer 13 and the ultraviolet absorption layer 17 is composed of an inorganic material, an organic material having a water absorption rate lower than that of the resin and of 0.8 mass% or less, or a mixture thereof.SELECTED DRAWING: Figure 1
【課題】映像の視認性及びその耐久性に優れた自発光型スクリーンを提供する。【解決手段】自発光型スクリーン10は、第1の透明基材11と、マトリックス及び波長400nmの紫外線によって励起可能な蛍光体を含む蛍光体層13と、樹脂を含み、前記蛍光体を含まず、波長400nmでの紫外線透過率が20%以上である樹脂層15と、マトリックス及び波長400nmの紫外線を吸収可能な紫外線吸収剤を含む紫外線吸収層17と、第2の透明基材19と、がこの順に積層された積層構造を含み、蛍光体層13及び紫外線吸収層17の少なくとも一方のマトリックスが、無機材料、吸水率が前記樹脂より低くかつ0.8質量%以下の有機材料又はそれらの混合物からなる。【選択図】図1
SPONTANEOUS LIGHT EMITTING SCREEN
自発光型スクリーン
2020-08-06
Patent
Electronic Resource
Japanese
IPC: | G03B APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM , Geräte oder Anordnungen zum Aufnehmen, Projizieren oder Betrachten von Fotografien / B32B LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM , Schichtkörper, d.h. aus Ebenen oder gewölbten Schichten, z.B. mit zell- oder wabenförmiger Form, aufgebaute Erzeugnisse / B60J WINDOWS, WINDSCREENS, NON-FIXED ROOFS, DOORS, OR SIMILAR DEVICES FOR VEHICLES , Fenster, Windschutzscheiben und bewegbare Dächer, Türen oder Ähnliches für Fahrzeuge |
Spontaneous Emission Engineering in Light Emitting Diodes
British Library Conference Proceedings | 1997
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