Visual Characteristics; Test Conditions; Brightness/ Brightness Uniformity; Color Temperature Adjustment - Philips 227E3QPHSU/27 Service Manual

Meridian 3
90
3.17 Pixel-orbiting function
3.17.1 On wide view angle models (IPS/e-IPS/AMVA/PVA/MVA)
3.17.2 Functional description
Every 1 min to shift one pixel for whole picture, 8 min to original point and Routing path (H-1, V+1,
H+1, V-1, V-1, H+1, V+1, H-1)

4. Visual Characteristics

4.1 Test conditions

Unless otherwise specified, this specification is defined under the following conditions.
1) Input signal: As defined in 3.3, 1920 x 1080 non-interlaced mode (1920 x 1080 @60Hz), signal sources
must have 75 ohm output impedance.
2) Luminance setting: controls to be set to 250 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 C
4.2 Brightness /Brightness uniformity
Follow Panel specification.

4.3 Color Temperature Adjustment

There are three factory preset white color 9300K, 6500K, sRGB.
Apply full gray 64 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
6500K/sRGB
11500K x = 0.270 ± 0.02, y = 0.281 ± 0.02
9300K x = 0.283 ± 0.02, y = 0.297 ± 0.02
8200K x = 0.291 ± 0.02, y = 0.306 ± 0.02
7500K x = 0.298 ± 0.02, y = 0.314 ± 0.02
x = 0.313 ± 0.02, y = 0.329 ± 0.02
sRGB x = 0.313 ± 0.02, y = 0.329 ± 0.02
5000K x = 0.345 ± 0.02, y = 0.357 ± 0.02
(x, y)
PerfecTune II
PerfecTune II
PerfecTune II
PerfecTune II
PerfecTune II
PerfecTune II
PerfecTune II