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A behavioral circuit model of active-matrix liquid crystal displays for optical response simulation

  • Youngmin Cho
  • , Chansoo Park
  • , Jong Man Kim
  • , Seung Hyuck Lee
  • , Seung Woo Lee

Research output: Contribution to journalArticlepeer-review

14 Citations (Scopus)

Abstract

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.

Original languageEnglish
Article number6172661
Pages (from-to)1430-1438
Number of pages9
JournalIEEE Transactions on Electron Devices
Volume59
Issue number5
DOIs
Publication statusPublished - May 2012

Bibliographical note

Funding Information:
Manuscript received September 23, 2011; revised January 19, 2012; accepted February 13, 2012. Date of publication March 22, 2012; date of current version April 25, 2012. This work was supported by the National Research Foundation of Korea under Grant KRF 2011-0015721. The review of this paper was arranged by Editor H.-S. Tae.

Keywords

  • Behavioral circuit model
  • SPICE simulation
  • optical response

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