Abstract
AbstractThe SSC local dimming algorithm, originally developed for direct‐lit LCD using a local optimization approach, has been modified and extended. A global optimization approach was used to cover the wide light spread over the display due to the edge‐lit. The existing six LED‐strings of a commercial available edge‐lit TV are controlled by our own driver circuit, while the PWM values for each LED are delivered by the SSC algorithm. The display parameters were measured and used in the SSC processing. An average power saving of up to 51% of the TV power consumption standard video has been achieved, while the visual quality is proven and the brightness is nearly the same as that of the original undimmed TV. with a higher number of LED strings a power saving significantly higher than 50% is to be expected.
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