Do not confuse this with the "NT61219H-C6021A TAB " (Tape Automated Bonding). While similar, the COF version has a thinner, flexible film.

module, the IC is mounted directly onto a flexible plastic substrate rather than a traditional rigid PCB. This "Tape Automated Bonding" (TAB) design allows the chip to be folded behind the screen, enabling thinner bezels and more compact display designs. Alibaba.com The NT61219H-C6021A typically functions as a source driver