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  2. 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 ...

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

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

    Static contrast ratio Finite or infinite [citation needed] 150 to 8,100:1 [citation needed] Typically 1,000:1 - 3,000:1, Some models measured up to 20,333:1 [citation needed] "Between 0.0001 and 0.00001 nits" "Sony claims an OLED contrast range of 1,000,000:1." [1] Peak luminosity

  4. Display contrast - Wikipedia

    en.wikipedia.org/wiki/Display_contrast

    The "luminance contrast" is the ratio between the higher luminance, L H, and the lower luminance, L L, that define the feature to be detected.This ratio, often called contrast ratio, CR, (actually being a luminance ratio), is often used for high luminances and for specification of the contrast of electronic visual display devices.

  5. Contrast (vision) - Wikipedia

    en.wikipedia.org/wiki/Contrast_(vision)

    Contrast is the difference in luminance or color that makes an object (or its representation in an image or display) visible against a background of different luminance or color. [1] The human visual system is more sensitive to contrast than to absolute luminance; thus, we can perceive the world similarly despite significant changes in ...

  6. Contrast resolution - Wikipedia

    en.wikipedia.org/wiki/Contrast_resolution

    Contrast resolution or contrast-detail is an approach to describing the image quality in terms of both the image contrast and resolution. Contrast resolution is usually measured by generating a pattern from a test object that depicts how image contrast changes as the structures being imaged get smaller and closer together.

  7. Dynamic range - Wikipedia

    en.wikipedia.org/wiki/Dynamic_range

    Dynamic range (abbreviated DR, DNR, [1] or DYR [2]) is the ratio between the largest and smallest measurable values of a specific quantity. It is often used in the context of signals, like sound and light.

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    mail.aol.com/m

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  9. Tandy Graphics Adapter - Wikipedia

    en.wikipedia.org/wiki/Tandy_Graphics_Adapter

    Tandy 1000 systems before the Tandy 1000 SL, and the PCjr, have this type of video. [8] It offers several CGA-compatible modes and enhanced modes. [9] CGA compatible modes: 320 × 200 in 4 colors from a 16 color hardware palette. Pixel aspect ratio of 1:1.2. 640 × 200 in 2 colors from 16. Pixel aspect ratio of 1:2.4