Acer AL716 AL716 Monitor Service Guide - Page 7

The following items are measured under stable conditions. The optical characteristics should be measured in a dark room or equivalent state with the methods shown in Note(4). ŠMeasuring equipment : TOPCON BM-5A, BM-7, PHOTO RESEARCH PR650 (Inverter Freq. : 54kHz) *Ta =25 ± 2°C, VDD=5V, fv=60 Hz, fDCLK=54 MHz, IL= 6.5mArms Item Contrast Ratio (Center of screen) Response Time Rising Falling Luminance of White (Center of screen) Red Color Chromaticity (CIE 1931) Green Blue White Hor. Viewing Angle Ver. Brightness Uniformity (9 points) Symbol CR TR TF YL Rx Ry Gx Gy Bx By Wx Wy θ L θ R φ H φ L BUNI Condition Normal φ = 0˚ θ = 0˚ Viewing Angle CR≥5 Min. Typ. Max. 250 400 - - 12 20 - 4.0 5 200 260 - TYP. -0.03 70 70 70 70 0.64 0.34 0.29 0.61 0.14 0.07 0.31 0.33 80 80 80 80 TYP. +0.03 - 75 - - Unit msec cd/m2 Degrees % Note (1)(2)(4) BM-5A (1)(3) BM-7 (5) BM-5A (1)(4) PR650 (1)(4) BM-5A (6) BM-5A Note 1) Definition of Viewing Angle: Viewing angle range (10≤CR) Note 2) Definition of Contrast Ratio (CR): Ratio of gray max(Gmax),gray min(Gmin) at the center point of panel. 7