Study on Hierarchy Collaborative Planning for TFT-LCD Production Chain

TFT-LCD (Thin Film Transistor Liquid Crystal Display) panel production as example, a hierarchical planning model is constructed to study the collaborative planning in multi-site multi-stage manufacture. According to the characteristics of TFT-LCD manufacturing process, three levels are proposed here for production chain planning: Firstly, for multi-stage planning, a Mixed Integrated Planning Model is constructed to realized the upstream and downstream collaborative planning; for multi-site planning, a Liner planning model is constructed to realized the parallel factories planning; and for the single factory planning, DBR (Drum-Buffer-Rope) theory based model is constructed. Secondly, the hierarchical collaborative planning model system intergraded with Enterprise Resource Planning (ERP) system also studied.