Condential
4-12
X1161/X1261
3. Full On/Full Off Contrast
Procedure - Full white pattern & full black pattern
- Use CL100 to measure brightness values of full white
pattern P5 & full black pattern B5
- Follow Contrast formula to calculate contrast values.
☼ Contrast Formula
P5/B5
Note: P5=center of white image
B5 = the center of black image.
Criteria ● 2500: 1 (for X1161)
● 2100: 1 (for X1261)
4. Uniformity
Procedure - Full white pattern
- Use CL100 to measure brightness values of P1~P9
(see image: full white).
- Follow the Uniformity formula to calculate
average values.
☼ Uniformity Formula
JBMA Uniformity = Avg. (P1, P3, P7, P9)/P5 X100%
Criteria ● 65%
4-10 Others
1. Function Inspection
General - All OSD functions must be checked for functionality.
When OSD menu is displayed, there shall be no
visible peaking, ringing, streaking, or smearing
artifacts on the screen.
Factory Default - The factory settings (with appropriate centering,
Full black pattern
Full white pattern