Update: 28 September, 2023
The STVM100 is a programmable VCOM adjustment solution for thin-film transistor (TFT) liquid-crystal displays (LCDs) to remove “flickers”. It is also used in e-paper and e-book applications to avoid the 'ghosting' effect (residual pixels after display refresh). It can replace a mechanical potentiometer, so that the factory operator can physically view the front screen when performing the VCOM adjustment. This significantly reduces labor costs, increases reliability, and enables automation. The STVM100 provides a digital I2C interface to control the sink current output (IOUT). This output drives an external resistive voltage divider, which can then be applied to an external VCOM buffer. Three external resistors R1, R2, and RSET determine the highest and lowest value of the VCOM. An increase in the output sink current will lower the voltage.
File format: PDF
Size: -
MD5 Checksum: 0DC85BFDCC638483D693B92D9A9E3694
Publication date: 09 August, 2012
Downloads: -
PDF Link: ST STVM100 Manual PDF