Individually Modulated LED
- Individually Modulated LED
Individually modulated light-emitting diode (IMLED) is a backlighting technology licensed by BrightSide Technologies Inc. applied to LCD monitors and television. It consists of an array of individually modulated LED semiconductors. Each LED has 256 brightness steps, where step 0 switches the LED off and step 255 switches it to maximum luminance. As a result, the device can display true black and very bright white, with a contrast ratio technically of "infinity", where minimal luminance is 0 cd/m² (the denominator) and maximal luminance is almost 4000 cd/m². To address the confusion that may accompany a display with a quoted contrast ratio of infinity, Brightside calculates its quoted contrast ratio using the next-darkest level available on the display to arrive at a contrast ratio of 200,000:1. This technology is very useful for HDR imaging.
The first product to use IMLED technology is the BrightSide DR37-P HDR display.
External links
* [http://www.hardwaresecrets.com/article/208/1 IMLED technology explained] at Hardware Secrets website
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