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A Behavioral Circuit Model of Active-Matrix Liquid Crystal Displays for Optical Response Simulation

By: Chansoo Park; Youngmin Cho; Seung-Woo Lee; Seung-Hyuck Lee; Jong-Man Kim;

2012 / IEEE

Description

This item was taken from the IEEE Periodical ' A Behavioral Circuit Model of Active-Matrix Liquid Crystal Displays for Optical Response Simulation ' We propose a behavioral circuit model to precisely predict optical responses of an active-matrix liquid crystal (LC) display (LCD) using a patterned vertical alignment (PVA) mode. To get more accurate simulation results, we propose two LC groups with different time constants for a pixel after observing the LCD pixels by using a high-speed camera. In addition, we include a time-delay concept into our behavioral model for brightening or rising transitions. We describe the behavior of the PVA-LCD by using the analog hardware description language Verilog-A. We simulate the PVA-LCD panel by importing the behavioral circuit model in the circuit simulator SmartSPICE. The simulation results of the transient optical responses show excellent matches with the measurement ones.