Richard[_9_]
September 23rd 12, 03:41 PM
Contrast ratio is important in high and full sunlight applications. Contrast ratio of a display is defined as the luminance (brightness) ratio between a brighter state and a darker state. The color LCDs “white” state and “black” state are used to calculate the contrast ratio.
Contrast ratio = CR = luminance of the “white” /luminance of the “black”.
If white and black are equally bright, then CR = 1 and the display is not readable. High contrast ratio makes the view in direct sunlight only slightly dependent on the backlight intensity. Even at the low backlight setting a high contrast ratio display is totally readable in full sunlight. These characteristic contribute to the overall superior direct sunlight performance in the cockpit. No longer do you need to run software in the white or no terrain mode, the color and clarity are vibrant in full sun.
Approximately 4:43 minutes into this YouTube you will see the sun shadow pass the Ultimate LE Flight Computer/display. It has no effect on the display, the colors remain extremely vivid with no change between sun and shade. The contrast ratio of the display is over 500:1 with backlight of up to 1400 Nits at 800 mAmp. No reflection or glare is visible from the display.
http://www.youtube.com/watch?v=1i0IVkHUnWU
Richard
www.craggyaero.com
Contrast ratio = CR = luminance of the “white” /luminance of the “black”.
If white and black are equally bright, then CR = 1 and the display is not readable. High contrast ratio makes the view in direct sunlight only slightly dependent on the backlight intensity. Even at the low backlight setting a high contrast ratio display is totally readable in full sunlight. These characteristic contribute to the overall superior direct sunlight performance in the cockpit. No longer do you need to run software in the white or no terrain mode, the color and clarity are vibrant in full sun.
Approximately 4:43 minutes into this YouTube you will see the sun shadow pass the Ultimate LE Flight Computer/display. It has no effect on the display, the colors remain extremely vivid with no change between sun and shade. The contrast ratio of the display is over 500:1 with backlight of up to 1400 Nits at 800 mAmp. No reflection or glare is visible from the display.
http://www.youtube.com/watch?v=1i0IVkHUnWU
Richard
www.craggyaero.com