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Scanning backlight for motion‐blur reduction on mobile displays
Author(s) -
Onac GabrielEugen,
Vogels Ingrid,
Bartula Marek,
Hoevenaars Albert,
Louwsma Hendrik Klaas
Publication year - 2008
Publication title -
journal of the society for information display
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.578
H-Index - 52
eISSN - 1938-3657
pISSN - 1071-0922
DOI - 10.1889/1.2841868
Subject(s) - backlight , liquid crystal display , motion blur , computer vision , computer science , computer graphics (images) , artificial intelligence , mobile device , motion (physics) , image (mathematics) , operating system
— Small‐form‐factor liquid‐crystal displays (LCDs) are mainly used in mobile applications ( e.g. , mobile phones, PDAs, and portable game consoles) but also in digital still cameras, video cameras, automotive applications, etc. Like all active‐matrix LCDs, mobile displays suffer from motion blur caused by the sample‐and‐hold effect. One option for improving the motion portrayal on active‐matrix LCDs is the use of a scanning backlight, which results in an imaging behavior similar to the one present in impulsive displays. In this paper, the realization of a scanning backlight for mobile displays is reported. This employs a backlight with seven individually lit segments for reducing the motion blur. Results of perception experiments performed with two identical displays confirm the benefit of using this technology. Optimal driving conditions result in a major improvement in motion portrayal on mobile LCDs.