: The image on one side of the screen jitters, loses contrast, or goes completely blank.

Technicians typically use bonding machines to replace the damaged NT61219H-C6021A with a new one. 5. Summary Table Description Model NT61219H-C6021A Type COF TAB Driver IC (Source) Function Liquid Crystal Display Driver IC Application LCD/LED TV Panel Repair Quality New (100% Guaranteed) Manufacturer Novatek Microelectronics Conclusion

Apply UV-curable solder mask over the joint to prevent shorts and mechanical stress.

What the display is showing (e.g., vertical bars, total failure)?

Solvents clean off the leftover Anisotropic Conductive Film (ACF) residue.