Liquid crystal display, as well as, a backlight controller...

Details Liquid crystal display, as well as, a backlight controller... Liquid crystal display, as well as, a backlight controller...

2007-05-14

2010-11-02

Mengistu, Amare (Department: 2629)

Computer graphics processing and selective visual display system

Plural physical display element control system

Display elements arranged in matrix

C345S690000

Reexamination Certificate

active

07825893

ABSTRACT:
A liquid crystal display, comprising: a liquid crystal display portion for inputting a video signal to display an image thereon; a backlight provided on a rear side of the liquid crystal display portion, for illuminating the liquid crystal display portion from a rear surface thereof; a backlight driver portion for driving the backlight, also having a light control function for controlling a light intensity of the illuminating lights from that backlight; a feature detector portion for detecting an averaged brightness of the video signal, and also a histogram of brightness or a color, upon basis of said video signal inputted; and a light intensity control portion for controlling the light intensity of the illuminating lights from the backlight, through the light control function of the backlight driver portion, upon basis of the histogram of brightness or color, as well as, the averaged brightness of the video signal detected by the feature detector portion.

REFERENCES:
patent: 7053881 (2006-05-01), Itoh
patent: 7093941 (2006-08-01), Kawashima et al.
patent: 7639220 (2009-12-01), Yoshida et al.
patent: 2005/0057486 (2005-03-01), Aoki et al.
patent: 2005/0104841 (2005-05-01), Sohn et al.
patent: 08-201812 (1996-08-01), None
patent: 2003-36063 (2003-02-01), None
patent: 2005-308792 (2005-11-01), None
English Translation of JP 2005-308792.

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