If true and a DisplayLUT has been set, the viewer will use the Display LUT to pseudo-color the image being displayed. note that the image itself is not changed, just the view of the image.
Note that the Display LUT and Response LUT have different purposes. The Response LUT is intended more for adjusting the image's luminance, such as brightness, contrast, and calibration. The Display LUT is a viewer property intended for pseudo-coloring or thresholding.
The blending and masking images are not affected.