12% and 30% power saving in charge-recycling match technique based on video signals for low-power display column drivers

Chih Che Hsu, Po Hsien Huang, Ke-Horng Chen, Zhih Han Tai, Yi Hsuan Cheng, Chi Chung Tsai

Research output: Contribution to journalArticlepeer-review

Abstract

the charge recycling match (CRM) technique is proposed to reduce dynamic power dissipation in display column drivers. The CRM technique can save much power in some polarity operation, which is hard to have charge recycling in conventional techniques. Theoretical analysis and experimental result show maximum dynamic power reduction of 12% and 30% in column inversion panel with R/G/B stripe pixel arrangement and Zigzag panel, respectively. The proposed method is suitable for voltage mode driving scheme and capacitive loading display column driver special in thin-film-transistor (TFT) liquid crystal displays (LCDs) and active mode organic light-emission-diode (AMOLED) display. A complete method application including circuit structure, algorithm and hardware implement are demonstrated in TFT-LCD application.

Original languageEnglish
Pages (from-to)1118-1121
Number of pages4
JournalDigest of Technical Papers - SID International Symposium
Volume44
Issue number1
DOIs
StatePublished - 1 Jan 2013

Keywords

  • Active matrix organic light emitter diode (AMOLED
  • Charge recycling
  • Column driver
  • Power consumption
  • thin-film transistor liquid crystal display (TFT-LCD)

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