摘要 |
<p><P>PROBLEM TO BE SOLVED: To allow a protective sheet material to be smoothly and beautifully affixed to a liquid crystal screen of a portable telephone or the like without creases. <P>SOLUTION: A protective sheet material includes a release film material and a film substrate having a slow-returning silicone layer. The slow-returning silicone layer has air passages formed by an air passage forming surface formed on the inner surface of the release film material. When the protective sheet material is affixed to a liquid crystal screen, air escapes through the passages so that the film substrate does not have creases. <P>COPYRIGHT: (C)2013,JPO&INPIT</p> |