Advantech FPM-8192V/8232V - Manual (Page 45)

37 FPM-8192V/8232V User Manual
Appendix E
T
ransflective
Display
(Optional)
E.3 Transflective Brightness Testing
E.3.1 Dark Room Testing Instructions
1. Put the panel on table and plug the inverter, adjust the screen to white color
background.
2. Open the brightness testing equipment and make the zero value on the Equip-
ment.
3. Put the brightness detection sensor on the front of the LCD panel to measure
the value.
4. Make sure that brightness on the OSD is adjusted to the maximum value.
5. After each time measure the brightness lamp level change, it is necessary to
wait for 30 minutes at least to ensure the brightness in the labs room in homoge-
neous or consistent.
6. All testing are applied to naked LCD without any glass or sensor on the front
side.
Brightness Inspection:
The brightness inspection is based on Picture 2 to measure sample:
**Our Labs ambient light is just for 10,000 nits, 20,000nit, 30,000nit, 40,000 nit or
more ambient light value can be calculated by formula to estimate the brightness
level of LCD panel
Sample
Panel Original
Brightness(nits) Finished Bright-
ness(nit) Increase
Proportion (%) Reflection
Rate (%) Ambient
Light
Panel A 221 317 43.4 --- 20,000nit
Panel B 210 315 50 0.67(test
nits:20,000 ) 20,000 nit