High-Image Reproduction by the Low-Field-Rate Stencil-LPD Method for Field-Sequential-Color LCDs

Fang Cheng Lin*, Chi Wen Chang, Yi-Pai Huang, Han Ping D. Shieh

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

5 Scopus citations


Color breakup is a lethal issue to conventional field-sequential-color LCDs. Several methods have been proposed to solve this problem. However, these solutions are either more than 180 Hz-the currently used LC mode is not sufficiently fast for this field rate-or they degrade the image quality while using a field rate of 120 Hz. To overcome these limitations, a 120 Hz Stencil Local Primary Desaturation, Stencil-LPD, is presented in this work. The 120 Hz Stencil-LPD method provides reduced but sufficient saturated backlight color to precisely present an image with less color distortion or color breakup. After optimizing a number of backlight segments, the experimental results demonstrate that the image fidelity is significantly improved and color breakup is greatly suppressed compared to the existing methods.

Original languageEnglish
Article number7131433
Pages (from-to)1069-1075
Number of pages7
JournalJournal of Display Technology
Issue number12
StatePublished - 1 Dec 2015


  • FSC
  • LPD
  • color breakup
  • field-sequential-color
  • local-primary-desaturation
  • stencil

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