 The rapid advances and falling prices of LCD flat panel technology — first for computer monitors, and then for televisions — spelled doom for competing display technologies such as CRT, rear-projection, and plasma display.Most high-end CRT production had ceased by around 2010, including high-end Sony and Panasonic product lines.In Canada and the United States, the sale and production of high-end CRT TVs ( screens) in these markets had all but ended by 2007.