P3150/P3250/P3150 Refresh/P3250 Refresh/P3251 Condential 4-10
2. �rightness
Procedure - Full white pattern
- Use CL100 to measure brightness values of
P1~P9.
- Follow the brightness formula to calculate
brightness values.
☼ Brightness Formula
Avg.(P1~ P9)x1.1m2
Criteria - 900 lumenslumens
3. Ful 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 ( see im-
age: full white)
- Follow Contrast formula to calculate contrast
values.
☼
Contrast Formula
P5/B5
Note: P5=center of white image
B5=center of black image.
Criteria - 1400:1
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
ANSI Uniformity = Avg. (P1, P3, P7, P9)
/P5X100%
Criteria - 65%
Full white pattern
Full black pattern