航天彩虹：公司的光学膜主要应用于高端液晶显示器材背光膜组等

Group 1 - The core viewpoint of the article highlights that the company, Aerospace Rainbow, specializes in optical films used in various high-end applications [2] - The company's optical films are primarily utilized in high-end liquid crystal display backlight modules, anti-static protective films, touch screen protective films, and automotive films [2]