Image Saturation Improvement for 180 Hz Stencil-FSC LCD With Side-Lit LED Backlight

Author

Fang-Cheng Lin ; Yi-Pai Huang ; Chang-Yi Teng ; Shieh, H.D.

Author_Institution

Dept. of Photonics, Nat. Chiao Tung Univ., Hsinchu, Taiwan

Volume

8

Issue

12

fYear

2012

Firstpage

699

Lastpage

706

Abstract

The green-based 180 Hz Stencil-FSC method was proposed to effectively suppress color breakup for a field-sequential-color liquid crystal display (FSC-LCD). Nevertheless, this method has an issue on green color desaturation. Therefore, we further propose the “limited backlight signal ratio” (LBSR) to determine a proper backlight signal to increase image color saturation and simultaneously suppress color breakup. To realize a thin and high image quality eco-display, in addition, the light spread function model and the number of backlight divisions for a side-lit backlight are optimized and combined with the LBSR stencil-FSC method.

Keywords

LED displays; colour displays; image colour analysis; liquid crystal displays; optimisation; LBSR; LCD; LED backlight; color breakup suppression; field sequential color; frequency 180 Hz; green color desaturation; image color saturation; image quality; image saturation improvement; light spread function model; limited backlight signal ratio; liquid crystal display; optimization; side lit LED backlight; stencil-FSC method; Green products; Humans; Image color analysis; Image quality; Light emitting diodes; Power capacitors; Signal to noise ratio; Color breakup; Taguchi method; color filter-less; field-sequential color (FSC); light spread function; side-lit; stencil-FSC;

fLanguage

English

Journal_Title

Display Technology, Journal of

Publisher

ieee

ISSN

1551-319X

Type

jour

DOI

10.1109/JDT.2012.2215839

Filename

6341089