Principal Engineer Samsung Display Yongin, Kyonggi-do, Republic of Korea
As increasing demands on display uniformity quality, the minimum recognizable color or luminance difference at dark display is needed to manage the quality. Human perception tests for color and luminance using a dark display at a low luminance level, down to 0.005 cd/m2 were carried out to find Just Noticeable Color Difference (JNCD) and Just Noticeable Difference (JND). Similar to previous works for brighter luminance, the lower the average luminance is, the larger recognizable color or luminance difference threshold is defined.