I recently evaluated some monitors at work which have internal firmware which compensates uniformity.
Essentially, the panel is examined for uniformity at the factory, and the black and white level deviations from mean for each pixel are measured and programmed into the monitors firmware. When the feature is activated, the monitor adjusts the pixel values to compensate for lack of uniformity.
E.g. if a pixel is "blacker than most", then it's brightness will be boosted slightly, so that it is the same brightness as most of the rest of the pixels. Similarly, if a pixel is "brighter than most" it will be darkened slightly.
Certainly, once activated, the monitor looks amazing - totally even illumination across the panel both when dark and bright - although, the cost is some increase in overall black level and some loss of contrast.
Unsurprisingly, the price of said monitor has a couple too many digits in it, for me to consider it for home use.
With the increasing availability of 10-bit output on video cards, and the use of accelerated desktop compositing, I was wondering if anyone had come up with something that has a similar effect. Some sort of OpenGL type shader-overlay could do this with minimal performance hit. This would be a similar sort of thing to how the graphics card LUT can be used to achieve monitor calibration.
Essentially, the panel is examined for uniformity at the factory, and the black and white level deviations from mean for each pixel are measured and programmed into the monitors firmware. When the feature is activated, the monitor adjusts the pixel values to compensate for lack of uniformity.
E.g. if a pixel is "blacker than most", then it's brightness will be boosted slightly, so that it is the same brightness as most of the rest of the pixels. Similarly, if a pixel is "brighter than most" it will be darkened slightly.
Certainly, once activated, the monitor looks amazing - totally even illumination across the panel both when dark and bright - although, the cost is some increase in overall black level and some loss of contrast.
Unsurprisingly, the price of said monitor has a couple too many digits in it, for me to consider it for home use.
With the increasing availability of 10-bit output on video cards, and the use of accelerated desktop compositing, I was wondering if anyone had come up with something that has a similar effect. Some sort of OpenGL type shader-overlay could do this with minimal performance hit. This would be a similar sort of thing to how the graphics card LUT can be used to achieve monitor calibration.
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