A backlight dimming algorithm for low power and high image quality LCD applications

Hyunsuk Cho, Oh-Kyong Kwon

Research output: Contribution to journalArticle

94 Citations (Scopus)

Abstract

A new backlight dimming algorithm is proposed to reduce power consumption of backlight and improve image quality in LCD applications. The proposed algorithm is consisted of two new techniques: the brightness modulation of the backlight and pixel compensation. The power saving ratio of four typical benchmarking images is 14- 43% by using proposed brightness modulation algorithm. The proposed pixel compensation removes the clipping artifact and unnecessary luminance reduction. The proposed backlight dimming algorithm is demonstrated on 7-inch TFTLCD with LED backlight.

Original languageEnglish
Pages (from-to)839-844
Number of pages6
JournalIEEE Transactions on Consumer Electronics
Volume55
Issue number2
DOIs
StatePublished - 2009 Aug 25

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Liquid crystal displays
Image quality
Luminance
Pixels
Modulation
Benchmarking
Light emitting diodes
Electric power utilization
Compensation and Redress

Keywords

  • Backlight dimming
  • LCD
  • LED backlight
  • Pixel compensation

Cite this

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A backlight dimming algorithm for low power and high image quality LCD applications. / Cho, Hyunsuk; Kwon, Oh-Kyong.

In: IEEE Transactions on Consumer Electronics, Vol. 55, No. 2, 25.08.2009, p. 839-844.

Research output: Contribution to journalArticle

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