US Patent 10083638 Edge side display device for a chair

An edge side display device for a chair includes a retention channel of a dovetail shape in cross section; and a plastic strip for embedding within the retention channel. The chair includes a chair body having a peripheral edge side formed with the retention channel. After being embedded, the plastic strip has an upper side surface exposed from the retention channel and having a pattern such that the pattern is visible from the exterior of the retention channel. The pattern consists of word information, like a seat or a row number that is visible under a natural lighting environment to facilitate finding a designated chair.