A physical-level LCD driver model and simulator with application to pixel crosstalk suppression

Abstract

The capability of early visual performance evaluation of alternative driving schemes is a major issue for time-effective and low-cost design of driver circuits for liquid crystal displays (LCD). We implemented a platform-independent, high-level, fully-configurable LCD driver simulation environment. The software incorporates an accurate driver/LC circuit model for reliable frequency characterization of the display module behavior. We demonstrated its efficiency in elaborating an optimal driving configuration that yields crosstalk-free image representation. The tool has been integrated into industrial design flows

P.130: A Measurement‐Based Time and Frequency Domain Analysis of the LCD VCOM Noise

“…A LCD size has increased dramatically during the last years, and a large-size and high-resolution LCD has not only complex noise pattern but also larger noise level. Since the LCD common voltage (VCOM) noise degrades the performance of on-cell capacitive touch sensors [1] as well as the display quality of LCD itself [2] [3], the accurate characterization of the LCD VCOM noise is required to improve the signal-to-noise-ratio of touch sensors as well as the image quality of LCD [4]. In the open literature, it is difficult to find the quantitative analysis on the LCD VCOM noise.…”