| 摘要 |
<P>PROBLEM TO BE SOLVED: To put an optical sheet to be hardly detached from a case, without increasing the sizes of the optical sheet and case. <P>SOLUTION: The optical sheet is equipped with: a sheet body 410; a projecting portion 411a, which projects from a peripheral edge of the sheet body in an outward direction extending from the inside of the peripheral edge 41a of the sheet body to the outside thereof; and a pawl 411b projecting from the projecting portion in a direction along the peripheral edge of the sheet body. A side from the projecting end of the projecting portion 411a to the projecting end of the pawl 411b inclines so as to gradually approach the peripheral edge of the sheet body 410 from the projecting end of the projecting portion 411a toward the projecting end of the pawl 411b. <P>COPYRIGHT: (C)2010,JPO&INPIT |
