Intersil Introduces New Non-Volatile Programmable Vcom Calibrator for TFT-LCDs
Intersil Corp. introduced a 7-bit non-volatile programmable Vcom calibrator with I2Cb interface for setting backplane common voltage in thin film transistor liquid crystal displays (TFT-LCDs).
Intersil's ISL45041 is designed to reduce the flicker of an LCD panel by adjusting the Vcom voltage during production, effectively replacing the mechanical potentiometers normally needed to adjust Vcom. This device incorporates a I2C interface and a 128-step adjustable sink current output current control. Its digital interface controls the sink-current output that attaches to an external voltage driver to establish the required Vcom voltage setting.
"Adjusting the Vcom of TFT-LCD panels is a labor-intensive process that can be simplified by using our new non-volatile Vcom calibrator," said Oleg Steciw, marketing manager for Intersil's Display products group. "This solution allows the user to replace one of the last mechanical stages in TFT-LCD panel assembly, reducing labor time and costs while significantly increasing reliability."
The ISL45041 is available now in a space-saving DFN-8 lead-free package that measures just 3mm x 3mm, with a maximum thickness of only 0.8mm. It is priced at $1.40 each in 1,000-unit quantities.
