| 摘要 |
PROBLEM TO BE SOLVED: To provide a microlens array sheet and a method for manufacturing the same, wherein no optical loss is generated when the microlens array sheet is manufactured by a conventional process, whereby an improved optical efficiency can be accomplished and a viewing field angle of microlenses can be controlled. SOLUTION: The microlens array sheet comprises a microlens array having a convex and concave surface including curved portions and boundary grooves formed between respective neighboring microlenses via laser micro machining, and a void filler layer stacked on the microlens array. The microlens array sheet can be manufactured with a reduced number of process steps using laser micro machining, whereby improved productivity as compared to a conventional sequential semiconductor process can be accomplished. Using the laser micro machining, also, enables the manufacture of a desired three-dimensional micro shape. Therefore, the microlens array sheet is applicable as an optical sheet of a display system requiring a delicate surface shape. COPYRIGHT: (C)2006,JPO&NCIPI
|
