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

X1161/X1261/X1161A/X1161N/X110/H5360 Confidential

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Acer X110 service manual Brightness, Full On/Full Off Contrast, Uniformity