For manufacturing efficiency, flat display panels are manufactured in a big glass panel form. The glass is later cut into smaller, actual usable panels for use in LCD TV, mobile phone display, PDA etc.Material tracking data markings are needed on specific location of the Flat Panel Display with chrome coating on it. This is done mainly at the beginning of the manufacturing process, on a big piece of uncut TFT glass panel. Those data marks are marked onto every individual subpanel.In most cases, marking specs allows a maximum of 15 um positioning tolerance. ScanVision solution is very beneficial to this system. An XY gantry transports the dual ScanVision Lasers to mark the subpanels section by section. With the built-in, high accuracy vision compensation, all marks on the subpanels can be done within the required tolerance, without needing a highly precise mechanical positioning system. As the marking is using 2D codes, the image each mark is then captured by the same camera and decoded for a good mark.
For manufacturing efficiency, flat display panels are manufactured in a big glass panel form. |