Patent ID: 7636197
Filing Date: 2009-12-22
Classification: B29D,B44F

Abstract:
1. A method for making a housing, comprising the steps of: providing a transparent substrate; applying a decorative ink coating onto a first surface of the substrate; and forming a micro lens array onto a second surface of the substrate at an opposite side to the first surface via screen printing process, wherein the screen printing process for forming a micro lens array includes following steps of: providing a screen board that has a plurality of trough holes formed thereon and arranged in an equidistant rectangular matrix; applying a liquid of an ultraviolet curable optical polymer onto the screen board in such manner that the liquid of the optical polymer is maintained in the trough holes of the screen board; disposing the transparent under the screen board, with the first surface facing the screen board; scraping the screen board by using a scraping blade so as to make the liquid of the optical polymer maintained in the through holes of the screen board drop onto the first surface of the substrate in drops; curing the optical polymer drops by irradiation of the ultraviolet light so as to form the micro lens array.