Kimoto Co, Ltd.

Keiichi Kitahara

Yoshihisa Kimura

Masuo Koyama

Masato Saito

Hideki Etori

Junji Ichinokawa

A fingerprint easily erasable film formed by providing a resin layer on a substrate, in which surface of the resin layer is matted and which is formed so that the surface of the resin layer should show a wet tension (JIS-K 6768:1999) of 25 mN/m or higher. Preferably, the resin layer has a surface roughness of 0.2 to 2.0 &#x3bc;m in terms of the ten point mean roughness Rz (JIS-B 0601:1994). The resin layer preferably contains an ionizing radiation curable resin and a matting agent, more preferably, two kinds of matting agents having different average particle diameters. On the fingerprint easily erasable film having such a configuration, ingredients of fingerprint are unlikely to adhere, and even if ingredients of fingerprint adhere, the ingredients of fingerprint can be removed substantially completely or to such a degree that they cannot be visually observed by wiping with cloth or the like.

Fingerprint easily erasible film

There is provided an anti-Newton ring sheet having an excellent anti-sparkle property, which can prevent the generation of sparkles when it is used in a touch panel using a high-definition color display, and a touch panel using this anti-Newton ring sheet. The anti-Newton ring sheetof the present invention has an anti-Newton ring layercomprising ionizing radiation curable organic-inorganic hybrid resin (binder component) and fine particleson one surface of a transparent substrate, and preferably the mean diameter and the coefficient of variation of the diameter of the particleis not less than 0.5 &#x3bc;m and not more than 3.0 &#x3bc;m and not less than 20% and not more than 80%, respectively, and the thickness of the anti-Newton ring layeris preferably not less than 0.2 &#x3bc;m and not more than 3.5 &#x3bc;m.

Anti-newton ring sheet and touch panel using the same

A light diffusing body and transmission type screen, which can reduce the shift of the color tone of the light source light seen through the light diffusing body and prevent the phenomenon that the white light source seen through the light diffusing body looks colored, is provide. The light diffusing bodyof the present invention comprises a transparent resin and spherical micro-particles having a different refractive index from that of the said transparent resin, wherein the relation between the maximum value (E) and the minimum value (E) of the effective scattering efficiency values (E) obtained for each center wavelength in the wavelength ranges of blue, green and red by dividing the sum of scattering cross-sections of all spherical micro-particles contained in the unit area of the aforementioned light diffusing bodyby the sum of geometrical cross-sections of all these spherical micro-particles satisfies E/E&#x2267;0.90.

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Kounosu, Japan

Keiichi Kitahara