Hi,
Sorry for the terse response and spelling errors. I'm not so good at writing on my iPad. It would be "rumored", not rumped, sorry!
The way it is there are different designs for LCD screens. The cheapest one is TN (Twisted Nematic) display. these are very dependent on viewing angle, so if you move your head left to right or up and down you see slightly different colors and contrast. For professional quality work IPS (In Plane Switching) LCDs are preferred, because they have much less dependence on viewing angle.
Almost all notebooks have TN screens (I think there are two exceptions, one from Dell ant another from Lenovo).
It has also been frequently stated that TN displays on notebooks only use 6 bit per color, I have no evidence for this but it seems it is taken for fact. According to this rumor the last 2 bits are produced by dithering.
http://en.wikipedia.org/wiki/TFT_LCD#Twisted_nematic_.28TN.29The technology that seems to be most popular for demanding work is IPS.
http://en.wikipedia.org/wiki/TFT_LCD#In-Plane_Switching_.28IPS.29There is more to the question than LCD panel type.
1) Background illumination can be of different quality.
2) How well is the screen internally calibrated? It is possible to correct calibration by modifying the "color lookup table" in the computer, but that may lead to posterisation/banding. It's prefarable to have a correctly calibrated screen to start with.
3) Can you reduce brightness? Brightness must much paper white in the viewing environment, else we get into the "My prints are too dark!" syndrome.
4) High end screens can be calibrated internally. Their color lookup tables may be 10 or even 12 bits. That essentially means that all the 8 bits per color normally available can be used for representing color. Very few OS/Software/hardware/display combinations fully support 10 bit signal path.
Regarding 8, 24 and 32 bits of color, the numbers mean the same. There are three colors , so 24 bit color 3x8 ("red", "green", "blue") and 32 has also a transparency (also called Alpha) channel.
Best regards
Erik
Thanks for answer
OK.
My MBP has
Farb-LCD:
Auflösung: 1920 x 1200
Pixeltiefe: 32-Bit Farbe (ARGB8888)
Is that OK ?
I don't know what you mean. My English isn't good ;-(
OK in future, see below
I don't found the translation for rumpred.
Do you mean like changing ?
At the moment I use a MBP buyed in 2009 and a iMac buyed in 2011
Jochen (.de)