Earlier this week Samsung unveiled its MicroLED TV, called The Wall. This is a modular display that is completely seamless. At CES Samsung unveiled a 146" 4K display, but according to this new video from Samsung the company will also offer it in customized sizes.
Samsung says that this is the world's first Modular TV. While modular displays are not new (Mitsubishi for example has a beautiful modular PMOLED display called Diamond Vision OLED) it seems that Samsung aims for this to be the world's first modular consumer display. It's not clear whether customers will be able to change the design.