Nt61219hc6021a Cof Datasheet Exclusive ^hot^ Jun 2026

Understanding the NT61219HC6021A COF IC The NT61219HC6021A is a Chip-on-Film (COF) gate driver Integrated Circuit (IC) manufactured by Novatek. It is widely used in LCD and LED television panels, especially in modern 4K and UHD displays from brands like Samsung, LG, and Sony.

Generally requires ACF (Anisotropic Conductive Film) bonding machinery for replacement.

Extreme visual artifacts—like localized vertical bar dropouts, permanent solid horizontal bars, or a ghosting display image—indicate that a copper trace on the flexible tape has burned out. These open-circuit conditions interrupt the delivery of VGH or VGL voltages to the panel glass matrix.

: Technical forums often share "exclusive" bypass diagrams for common COF models used in television repair. TPS51219 - Texas Instruments nt61219hc6021a cof datasheet exclusive

Standard COF processes support fine pitches down to 14μm–20μm for high-resolution output.

When an inner trace inside the flexible film burns out or suffers mechanical damage, replacing the whole panel is often unnecessary. Technicians can use the to manually restore the circuit.

High-definition (HD) and Ultra-HD (4K) LCD/LED display panels. TPS51219 - Texas Instruments Standard COF processes support

is a mounted on a flexible film substrate. Unlike traditional Chip-on-Glass (COG) technology, this COF design allows manufacturers to achieve ultra-slim bezels by folding the driver chips behind the panel. Its primary role is to process data and voltage from the T-Con board and send pixel control signals to the display panel. Key Specifications & Voltage Test Points To diagnose a faulty NT61219HC6021A

Completely opens the TFT pixel channels for maximum sub-pixel illumination. Gate Voltage Low -5V to -15V DC

If you suspect a COF failure, always check the VGH and VGL lines first. A shorted COF or a bad bonding connection will often cause these voltages to drop to zero or fluctuate wildly, resulting in a completely dark panel. Output Tracks (Panel Glass Side)

By soldering a microscopic jumper wire from the T-Con board directly to the missing voltage pin on the NT61219HC6021A

Controls signal discharge timing to prevent ghosting or image retention. GND: System ground reference. Output Tracks (Panel Glass Side)