RE: Apple Cinema 24 LED
RE: Apple Cinema 24 LED
- Subject: RE: Apple Cinema 24 LED
- From: Roger Breton <email@hidden>
- Date: Wed, 10 Dec 2008 23:10:28 -0500
Raimar,
Vielen danke fur diese precious informationen.
Ich have eine frage : does this monitor uses any internal LUT of its own? To
your knowledge?
MfG / Roger
> In the past days I had access to the new Apple Cinema Display 24 LED
> and I
> was curious what kind of technology Apple is using for it. It looked
> obvious
> that for a 899 $ price point no RGB-LED backlight could be used - but a
> white LED one.
>
> The result of the evaluation is that the display indeed makes use of a
> (pseudo) white LED backlight with 72% NTSC (white LED can reach up to
> 80%)
> and the gamut volume is very close to sRGB, although the real coverage
> is
> smaller than sRGB.
>
> CIE 1931 area ratio coverage
> sRGB 101,94% 95,17%
> NTSC 72,20% 70,51%
> Adobe RGB 75,57% 73,71%
>
> The uniformity of the sample is acceptable with a maximum deviation of
> 8%
> (lower right corner) and a maximum color deviation of 4 C (top left)
> from
> the center. The test was done using UGRA´s udact (uniformity measurment
> according to ISO 12646).
>
> >From a closer observation of the pixel structure, the unit looks like
> a
> typical LG S-IPS. Given the fact that LG indeed has a direct Display
> Port
> (no DVI to LVDS conversion necessary any more) panel with white LEDs in
> their roadmap, it is very likely that this panel is the basis for the
> Cinema
> 24 LED.
>
> Raimar
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