Lidl uses a yellow circle in its main logo, and Tesco uses one to highlight offers available to members of its Clubcard scheme. A judge began overseeing a trial at the High Court in London on Tuesday.

Supermarkets Tesco and Lidl have begun a High Court fight over the use of a yellow circle logo. German discount chain Lidl says a trademark, and copyright, has been infringed, while Tesco has made ...

Supermarkets Tesco and Lidl have begun a High Court fight over the use of a yellow circle logo. German discount chain Lidl says a trademark, and copyright, has been infringed, while Tesco has made a ...