| 摘要 |
The present invention relates to a non-reflective screen for combined usage as a chalkboard which enables a user to write on the chalkboard and at the same time can project an image of a projector and more specifically, to a field as to the non-reflective screen for combined usage as the chalkboard including: a non-reflective coating layer which is comprised in a front plane of the screen for facilitating writing on the chalkboard and image projection and is formed with a synthetic resin material having an uneven plane in the front thereof; an air gap layer which controls diffraction of a light incident on the non-reflective coating layer on a bottom of the non-reflective coating layer; a screen layer for controlling reflection of the light; and a supporting layer for supporting the screen layer. Also, the present invention relates to a method for manufacturing the non-reflective screen for combined usage as the chalkboard smoothly. The present invention can obtain the effect of solving difficulty of making a glass board having an uneven part on a front surface thereof as many as manufactured screens, and can obtain the effect of solving a problem that the non-reflective coating layer can be damaged easily due to external force by that the front plane of the manufactured screen is formed with the non-reflective coating layer of the synthetic resin material which can not be broken easily as having softer property than the glass. Especially, because the non-reflective coating layer is formed wit the synthetic resin material, the non-reflective coating layer has flexibility and thus the manufactured screen can be deformed to a curved plate shape having a fixed curve. |
