Acer AL1916 AL1916p Service Guide - Page 14

Optical characteristics measurement setup Notes 5) Definition of Luminance of White : measure the luminance of white at center point. Notes 6)Definition of 9 points brightness uniformity (Measuring points: Refer to the Note 5) AU BUNI= Samsumg Bmin X 100% Bmax BUNI= Bmax-Bmin X 100% Bmax Bmax: Maximum brightness Bmin: Minimum brightness Notes 7) Definition of Flicker level Flicker Voltage pp F x 100 % LMD Voltage dc ♦ One maximum value of three estimated values. ♦ For this test ,an LMD(Light Measurement Device)is needed with adequate response time to track any visible rate flicker component and with a voltage level output proportional To luminance intensity. ♦ Test Pattern: For dot inversion Driving(Gray levels of foreground dots on the test panel Are G22,G32,and G45) - 14 -