A CMOS current-mode S-shape correction circuit with shape-adjustable control

Kuo Jen Lin, Chih Jen Cheng, Hsin Cheng Su, Jwu E. Chen

Research output: Contribution to journalArticlepeer-review

Abstract

A CMOS current-mode S-shape correction circuit with shape-adjustable control is proposed for suiting different LCD panel's characteristics from different manufactures. The correction shape is divided into three segments for easy curve-fitting using three lower order polynomials. Each segment could be realized by a corresponding current-mode circuit. The proposed circuit consists of several control points which are designed for tuning the correction shape. The S-shape correction circuit was fabricated using the 0.35 μm TSMC CMOS technology. The measured input dynamic range of the circuit is from 0 μA to 220 μA. The -3 dB bandwidth of the circuit is up to 262 MHz in a high input current region.

Original languageEnglish
Pages (from-to)1730-1736
Number of pages7
JournalIEICE Transactions on Electronics
VolumeE95-C
Issue number11
DOIs
StatePublished - Nov 2012

Keywords

  • Current-mode circuit
  • Quadratic circuit
  • S-shape correction
  • TFT-LCD

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