Acer AL2051W Technical Information PDF herunterladen (Seite 8)

Electrical Requirements

Standard Test Conditions

All tests shall be performed under the following conditions, unless otherwise specified.

Ambient light

: Dark room (<1cd/m2)

Viewing distance

: 40 cm for LCD performance, 20 cm for LCD failures

Warm up time

All specifications :

＞30 minutes

Fully functional : 5 seconds

Measuring equipment

: Chroma 7120 signal generator or equivalent, directly

Connected to the monitor under test.

Minolta CA100 photometer, or equivalent

Control settings

User brightness control : Set to Factory preset value (cut off raster)

User contrast control : T Set to factory preset value, which allows that the brightest two

of 32 linear distributed gray-scales (0 ～ 700mv) can be

distinguished.

User red/white balance,

Green/white balance and

Blue/white balance control :

In the center (unless otherwise specified)

Power input

230V± 5％,

50±3 Hz

Ambient temperature

20+

5℃

Measurement systems

The units of measure stated in this document are listed below:

1 gamma = 1 nano tesla

1 tesla = 10,000 gauss

cm = in x 2.54

Lb = kg x 2.2

Degrees F = [°C x 1.8] + 32

Degrees C = [°F - 32]/1.8

u' = 4x/(-2x + 12y + 3)

v' = 9y/(-2x + 12y + 3)

x = (27u'/4)/[(9u'/2) - 12v' + 9]

y = (3v')/[(9u'/2) - 12v' + 9]

nits = cd/(m2) = Ft-L x 3.426

lux = foot-candle x 10.76

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