Philips 19B4LPCS/00 - Speaker; 4 Visual Characteristics; Brightness; Color Temperature Adjustment

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70 19B4LP LCD
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3.20 Speaker
1) Input signal: 1000 mVrms
Loudspeaker (Impedance: 5.25 [F1] Ohm +/-15%): 1.5W+ 1.5 W (typical), stereo for RMS
2) Earphone
Stereo > 50mVrms for headphone of 32.
The loudspeakers are muted when earphone is plugged in.
4 Visual characteristics
4.1 Test conditions
Unless otherwise specified, this specification is defined in following conditions.
(1) Input signal: As defined in 3.3, 1280 x 1024 non-interlaced mode (1280 x 1024 @60 Hz)
,signalsources
must have 75 ohm output impedance.
(2) Luminance setting: controls to be set to 300 nits with full screen 100 % duty cycle white signal
(3) Warm up: more than 30 minutes after power on with signal supplied.
(4) Ambient light: 400 -- 600 lux.
(5) Ambient temperature: 20 ± 5 qC
4.2 Brightness
Follow Panel specification.
4.3 Color temperature adjustment
There are three factory preset white color 9300K, 6500K, sRGB.
Apply full white pattern, with brightness in 100 % position and the contrast control at 50 % position.
The 1931 CIE Chromaticity (color triangle) diagram (x ,y) coordinate for the screen center should be:
Product specification
CIE coordinates (x,y)
11500K
x = 0.270 ± 0.02
y = 0.281 ± 0.02
PerfecTune II
9300K
x = 0.283 ± 0.02
y = 0.297 ± 0.02
PerfecTune II
8200K
x = 0.291 ± 0.02
y = 0.306 ± 0.02
PerfecTune II
7500K
x = 0.298 ± 0.02
y = 0.314 ± 0.02
PerfecTune II
6500K
AUO :
x = 0.313 ± 0.006
y = 0.329 ± 0.006
LGD :
follow panel spec
No PerfecTune II
sRGB x = 0.313 ± 0.02 PerfecTune II