EP 2184732 B1 20141217 - System and method for adjusting a backlight level for a display on an electronic device
Title (en)
System and method for adjusting a backlight level for a display on an electronic device
Title (de)
System und Verfahren zur Einstellung eines Rückbeleuchtungsgrades für eine Anzeige einer elektronischen Vorrichtung
Title (fr)
Système et procédé pour régler le niveau de rétroéclairage de l'affichage dans un dispositif électronique
Publication
Application
Priority
- EP 10152602 A 20060214
- EP 06101680 A 20060214
Abstract (en)
[origin: EP2184732A1] The invention provides a system and method for calculating a backlight level for an image being displayed on an electronic device (10). In one aspect, a backlight adjustment module is provided. The backlight adjustment module controls a backlight system (64) that provides backlight for a display (14) in an electronic device. The backlight adjustment module provides: calculations of an average intensity for an image being displayed on the display on a running average basis (302) from a greyscale value associated with the image corrected according to a gamma curve and to determine a backlight level for the image using the average intensity, where the darker the image the greater is the backlight level; and controls signals to the backlight system based on the calculations to generate a backlight for the image generated on the display.
IPC 8 full level
G09G 3/34 (2006.01)
CPC (source: EP)
G09G 3/3406 (2013.01); G09G 3/3611 (2013.01); G09G 2320/0626 (2013.01); G09G 2320/066 (2013.01); G09G 2330/021 (2013.01); G09G 2360/16 (2013.01)
Citation (examination)
SHAYLE R SEARLE: "The Recurrence Formulae for Means and Variances", TEACHING STATISTICS, vol. 5, no. 1, 1 January 1983 (1983-01-01), pages 7 - 10, XP055122512, ISSN: 0141-982X
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU LV MC NL PL PT RO SE SI SK TR
DOCDB simple family (publication)
EP 1818901 A1 20070815; EP 1818901 B1 20100224; AT E459072 T1 20100315; CA 2574807 A1 20070814; CA 2574807 C 20120403; DE 602006012439 D1 20100408; EP 2184732 A1 20100512; EP 2184732 B1 20141217; HK 1108964 A1 20080523
DOCDB simple family (application)
EP 06101680 A 20060214; AT 06101680 T 20060214; CA 2574807 A 20070122; DE 602006012439 T 20060214; EP 10152602 A 20060214; HK 08101716 A 20080215