Chyron
noun [ C ] US trademark uk/ˈkaɪ.rɒn/ us/ˈkaɪ.rɑːn/
（电视画面下方的）滚动新闻
the brand name for a strip with text on it that covers the bottom part of the image on a television screen
The ad closes with a Chyron urging action: "Silence is acceptance." 这则广告以画面下方的一条滚动新闻结束，呼唤采取行动：“沉默即为接受。”