A method for interference reduction is described. The touch screen panel AMOLED display device includes a flexible AMOLED disposed on the bottom of a window, and a Chip-On-Film film connected to the flexible AMOLED and coupled with a flexible AMOLED driver Integrated Circuit. A detector detects, for each of the multiple threads, whether a loop processing is currently being executed. A set of tag library usage information for the JSP file is generated based. This configuration provides at least four degrees of freedom to the apparatus in order to skim the slag from the molten metal. The optical disc includes a plurality of data blocks and a plurality of spare blocks, each data block is for recording data, each spare block is for replacing a defect data block to record a data.