Glass-ceramic worktop of large size

An advantageously interactive item of furniture and/or appliance (1), comprising: at least one worktop (5) formed from at least one substrate (6) made of a monolithic glazing material and of area larger than 0.7 m , said substrate having a lightness L* higher than 10, a light transmission TL lower than 50%, and an opacity indicator higher than 90 and if relevant a haze higher than 15%; at least one heating element (7); at least one light source (8), in particular intended to light up, in particular by projection, one or more zones or one or more elements or displays of the substrate, this source for example being located plumb with the substrate; and at least one interface for communicating with at least one element of the worktop such as the one or more light sources (8) and/or the one or more heating elements (7) and/or if needs be wirelessly with at least one external element. 家具设备和/或家用设备(1)，有利地为交互的家具设备/家用设备，其包含：-至少个工作台(5)，其由至少个具有大于0.7m的面积的由单片玻璃材料制成的基材(6)形成，所述基材具有高于10的亮度L*，低于50%的光透射T，高于90的不透明性指数，和必要时高于15%的