Dell S2425HS User Manual page 10

Eye Comfort 3.0 Requirements and Star Rating Scheme for Monitors
Category Test item
Low Blue Light
Eye Care
Flicker Free
Ambient
Light Sensor
performance
Ambient Light Intelligent CCT
Management control
Intelligent
Luminance
control
Refresh Rate
Luminance
uniformity
Color Uniformity
Freedom of
movement
Image quality
Gamma
difference
Wide color
gamut
Eye Comfort
User guide
User Guide
¹ Software controls the blue light emission by reducing excessive blue light, resulting in a
more yellow tone.
2 Color gamut describes the availability of colors in the display. Various standards were
developed for specific purposes. 100% corresponds to the full color space as defined in
the standard.
NTSC stands for National Television Standards Committee, which developed a color
3
Remark space for the television system that is used in the United States.
sRGB is a standard red, green, and blue color space that is in use on monitors, printers,
4
and the World Wide Web.
DCI-P3, short for Digital Cinema Initiatives - Protocol 3, is a color space used in digital
5
cinema that encompasses a wider range of colors than the standard RGB color space.
Adobe RGB is a color space created by Adobe Systems that encompasses a broader
6
range of colors than the standard RGB color model, particularly in the cyans and greens.
10 | About your monitor
3-star
TÜV Hardware LBL
Category III (≤50%)
or Software LBL
solution¹
TÜV Flicker Reduced
or TÜV Flicker Free
No sensor
No
No
≥60Hz
Luminance uniformity ≥ 75%
Color uniformity Δu'v' ≤ 0.02
Luminance changes shall decrease less than 50%;
The colour shift shall be less than 0.01
Gamma difference
≤ ±0.2
NTSC 3 Min.72%
(CIE 1931) or sRGB
Min 95%
2
(CIE 1931)
Yes
Star Rating Scheme
4-star
TÜV Hardware LBL
Category II (≤35%)
or Category I (≤20%)
TÜV Flicker Reduced
or TÜV Flicker Free
No sensor
No
No
≥75Hz
Gamma difference
≤ ±0.2
sRGB Min.95%
4 4
(CIE 1931)
Yes
5-star
TÜV Hardware LBL
Category II (≤35%) or
Category I (≤20%)
Flicker Free
Ambient light sensor
Yes
Yes
≥120Hz
Gamma
difference ≤ ±0.2
DCI-P3 Min. 95%
5
(CIE 1976) & sRGB 4
Min.95% (CIE 1931) or
Adobe RGB Min.95%
6
(CIE 1931) & sRGB
4
Min.95% (CIE 1931)
Yes