AAAAGGGGIIIILLLLEEEENNNNTTTT ENVIRONMENTAL AND SOCIAL RESPONSIBILITY REPORT 73/110 Case study | Environmentally friendly display panels The Semiconductor Products Group's (SPG) Isolation Products Division (IPD) is playing a part in preserving the environment by offering lead-free optocouplers, which are used in applications such as wide-screen, flat-panel plasma display panels (PDPs) – the latest in home theater technology.