Smart Response (Not Required For This Product); Visual Characteristics; Test Conditions; Brightness - Philips 190B9CS/00 Service Manual

86 HUDSON 9
D. Hot keys to trigger:
Press [Smart Image] 3 seconds or more to trigger the demo mode.
When demo mode is On, press 3 seconds or more to turn off the demo mode.
When the demo mode is enabled, the blue LED will flash until demo mode disabled.(N/A for this model)

3.17 Smart Response (Not required for this product)

Gray to Gray Response time:? ms (max.)

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, 1280 x 1024
non-interlaced mode (1280 x 1024@ 75Hz),
signal sources must have 75 ohm output impedance.
(2) Luminance setting : controls to be set to 300 nits (typical ) with
(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

Follow panel specification.

4.3 Image size

Actual display size: Refer to 2.1 LCD PANEL spec.

4.4 Brightness uniformity

Set contrast at 100% and turn the brightness at 100%
Apply the Fig 1, it should comply with the following formula:
Where B_max =Maximum brightness, B_min = Minimum brightness

4.5 Check Cross talk (S)

Apply Pattern 2. Set contrast and brightness at 100 %.
Measure YA. Then output Pattern 3 and measure YB.
The cross talk value:

4.6 White color adjustment

There are three factory preset white color 11500K, 9300K, 8200K, 7500K, 6500K, sRGB and 5000K .
Apply full gray64 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:
full screen 100 % duty cycle white signal
B_min
B_max
ABS (YA -YB)
⎯⎯⎯⎯⎯⎯⎯⎯⎯
YA
X 100% >75%
X 100% < 1.5 %