9
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)
Bmin
B
UNI
=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)
♦
♦
♦
♦
Test Point :Center point of the display area
Summary of Contents for AL922
Page 21: ...21 3 3 BLOCK DIAGRAM ...
Page 31: ...31 7 TROUBLESHOOTING 7 1 Main Procedure ...
Page 32: ...32 7 1 1 Power Circuit Troubleshooting ...
Page 33: ...33 7 1 2 Backlights Troubleshooting ...
Page 34: ...34 7 1 3 Performance Troubleshooting ...
Page 35: ...35 7 1 4 Function Troubleshooting ...
Page 38: ...38 Back Cover Cable Cover Gap 0 8 mm B 1 2 mm Base Cover Neck Cover Gap 0 8 mm C 1 2 mm ...
Page 42: ...42 WAVESHAPE ...
Page 48: ...48 APPENDIX A PARTS LISTS ...
Page 50: ...50 A 4 461A7830011 Firmware Ctrl Board VL 901 ...
Page 53: ...53 APPENDIX B DISPLAY UNIT ASSEMBLY ...