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  2. Comparison of CRT, LCD, plasma, and OLED displays - Wikipedia

    en.wikipedia.org/wiki/Comparison_of_CRT,_LCD...

    Perceptible on lower refresh rates (60 fps and below) [27] Depends; in 2013 most LCDs used PWM to dim the backlight [28] However, since then many flicker free LCD computer monitors were introduced. [29] Does not normally occur due to a high refresh rate higher than FPS [30] Does not normally occur at 100% brightness level.

  3. High-dynamic-range television - Wikipedia

    en.wikipedia.org/wiki/High-dynamic-range_television

    The highlights—the brightest parts of an image—can be brighter, more colorful, and more detailed. [2] The larger capacity for brightness can be used to increase the brightness of small areas without increasing the overall image's brightness, resulting in, for example, bright reflections from shiny objects, bright stars in a dark night scene, and bright and colorful light-emissive objects ...

  4. High dynamic range - Wikipedia

    en.wikipedia.org/wiki/High_dynamic_range

    [23] [24] The HDR display must have either a peak brightness of over 1000 cd/m 2 and a black level less than 0.05 cd/m 2 (a contrast ratio of at least 20,000:1) or a peak brightness of over 540 cd/m 2 and a black level less than 0.0005 cd/m 2 (a contrast ratio of at least 1,080,000:1).

  5. Gamma correction - Wikipedia

    en.wikipedia.org/wiki/Gamma_correction

    luminance is the photometric brightness of an object (in units of cd/m 2), taking into account the wavelength-dependent sensitivity of the human eye (the photopic curve); relative luminance is the luminance relative to a white level, used in a color-space encoding; luma is the encoded video brightness signal, i.e., similar to the signal voltage ...

  6. This lightweight laptop is more than 75% off at Amazon — but ...

    www.aol.com/lifestyle/jumper-laptop-sale...

    The laptop came with 12 GB of RAM—more than adequate to run Microsoft Office Word, Excel and Powerpoint. The HDD is 256GB and expandable to 1TB. The screen is crisp and clean looking and the ...

  7. Daytime sleepiness may be a sign of higher dementia risk - AOL

    www.aol.com/daytime-sleepiness-may-sign-higher...

    MCR, characterized by a slower walking speed and some memory issues, was found to be more likely in a cohort of people over 65 who met the criteria of “poor sleepers,” with excessive daytime ...

  8. Contrast ratio - Wikipedia

    en.wikipedia.org/wiki/Contrast_ratio

    An LCD technology is dynamic contrast (DC), also called advanced contrast ratio (ACR), and smart contrast ratio (SCR [4]) and various other designations.When there is a need to display a dark image, a display that supports dynamic contrast underpowers the backlight lamp (or decreases the aperture of the projector's lens using an iris), but proportionately amplifies the transmission through the ...

  9. Fed September minutes may show whether 50 bps rate cut was a ...

    www.aol.com/news/fed-september-minutes-may-show...

    Minutes of the U.S. Federal Reserve's half-a-percentage-point rate cut last month, to be released on Wednesday, may provide a final word on just how divided policymakers were over a decision that ...