FIELD: image forming devices.
SUBSTANCE: invention relates to technologies for display on devices with LED backlight. Technical result is achieved by measuring the brightness to measure the brightness of the LED measuring element, storing the dimming rate of the LED measuring element, estimating the accumulated luminescence time at intervals of a predetermined time, storing the average fill factor, obtained by dividing the accumulated luminescence time, which is estimated, by the accumulated working time, and calculating the brightness correction factor to obtain the dimming rate with reversal to the dimming rate storage unit and the average fill factor storage unit and calculating the brightness correction factor from the dimming rate.
EFFECT: technical result is the correction of the brightness of each LED element by reducing the amount of calculations.
8 cl, 7 dwg
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