TRANSPARENT TRANSMISSION TYPE SCREEN AND METHOD FOR MANUFACTURING THE SAME

• Main Author: SUZUKI YUKIHIRO
• Format: Patent
• Language: English; Japanese
• Published: 10.10.2019
• Subjects: ACCESSORIES THEREFOR; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USINGWAVES OTHER THAN OPTICAL WAVES; APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FORPROJECTING OR VIEWING THEM; CINEMATOGRAPHY; ELECTROGRAPHY; HOLOGRAPHY; OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS; OPTICS; PHOTOGRAPHY; PHYSICS

To provide a transmission type screen excellent in screen transparency and projector image visibility.SOLUTION: A transmission type screen includes, on at least one surface of a light transmissive support, a light diffusion layer including light diffusion fine particles carried in gelatin gel and having an average particle size of 45 nm or more and 340 nm or less. The method for manufacturing the transparent transmission type screen comprises applying a light diffusion layer coating solution having a solution temperature of 20°C or more and including light diffusion fine particles having an average particle size of 45 nm or more and 340 nm or less and gelatin to a light transmissive support; and setting the film surface temperature of the light diffusion layer coating solution to 15°C or less before the drying step.SELECTED DRAWING: Figure 1 【課題】スクリーン透明性とプロジェクター映像視認性に優れた透過型スクリーンを提供する。【解決手段】光透過性支持体の少なくとも一方の面に光拡散層を有する透過型スクリーンであって、該光拡散層に平均粒子径が４５ｎｍ以上３４０ｎｍ以下である光拡散微粒子を含有し、該光拡散微粒子がゼラチンゲルに担持されていることを特徴とする透明な透過型スクリーン、及び平均粒子径が４５ｎｍ以上３４０ｎｍ以下の光拡散微粒子とゼラチンを含有する液温２０℃以上の光拡散層塗布液を光透過性支持体に塗布後、乾燥工程までの間に、該光拡散層塗布液の膜面温度を１５℃以下とすることを特徴とする透明な透過型スクリーンの製造方法。【選択図】図１