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2. Brightness
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)*1.1m2 |
Criteria | ● 1100 ANSI lumen |
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 = Lux of center in full white pattern | |
|
| B5 =Lux of center in full black pattern |
Criteria | ● 2500: 1 | (for X1161/X1161A/X1161N/X110) |
| ● 2100: 1 | (for X1261) |
| ● 2300: 1 | (for H5360) |
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% |
Full white pattern
Full black pattern