ROHM is the first in the market to develop white LED drivers for back lights capable of real-time automatic brightness adjustment based on the ambient light as well as the brightness of the projected image. The result is greater energy efficiency and less eye fatigue, even when viewing for long periods.
(Adjustment 1) Save energy by adjusting based on image brightness |
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| Unlike conventional illumination-sensor-only driver systems, where the back light is fixed regardless of the image brightness, ROHM's white back light LED drivers adjusts the brightness on the fly based on brightness of the image displayed, optimising the viewing experience while reducing power consumption. |
(Adjustment 2) Save energy by adjusting based on ambient light |
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| A special function is built in that can adjust the drive current automatically in 256 steps to match the input from the illumination sensor IC, ensuring flicker-free viewing and low power operation. Power consumption is reduced to 1/3 that of conventional white LED drivers without an adjustment function. |
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