Abstract
AbstractClipping caused by temporal LED filter suppressing LED flicker or by high power saving is one of the most annoying effects in locally dimmed BL systems. In standard Pixel Compensation (PC) algorithms the lower BL luminance is compensated by increasing the TFT transmission by a reciprocal factor. In our new approach the compensation factor is moreover a function of the achieved BL luminance and the clipping density of a local area. This strategy leads to a reduction of clipping below a perceptual threshold while the global image brightness is mostly preserved. Thus, our SSC local dimming system amended by this new approach delivers high power saving rates and high image quality ‐ without annoying clipping artifacts.
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