[love_leeloo]

hello All,
is there anyone who knows the brightness in cd/m² of the powerbook's screen ?

for the 12", 15" and 17" models

thanks

[iREZ]

Nope don't know those numbers but I could tell you that the 12" is dim compared to the 15" and 17", and those are slightly dimmer than the 17" iMac G5 screen which is slightly dimmer than the 20" iMac G5, which is pretty comparable to the Apple Cinema Displays but not quite. Oh yeah....I know that answered your question.

[love_leeloo]

[TailsToo]

It seems like my 15" TI has always been a lot dimmer than my 20" Cinema, which is rated at 250, I believe.

[chrisutley]

Originally posted by TailsToo:
It seems like my 15" TI has always been a lot dimmer than my 20" Cinema, which is rated at 250, I believe.

It should be... You may also notice that whites look dingy on the PB next to the ACD, and the color saturation on the ACD is much better.

[love_leeloo]

thanks for your answer

[Dr.Michael]

Originally posted by love_leeloo:
hello All,
is there anyone who knows the brightness in cd/m² of the powerbook's screen ?

for the 12", 15" and 17" models

thanks

For the 12 inch it is 127 cd/m² maximum (from a test in a computer magazine).
Their comment was: not enough aging reserve.

The contrast of the 15 inch is 700:1, the 17 inch 650:1.

[love_leeloo]

thanks

[love_leeloo]

how the contrast of the 15" can be 700:1 and how the contrast of the 17" can be 650:1, when the contrast of the 30" apple display is only 400:1 ????

[striker100]

The Powerbooks displays are under performers. I had both a 15" and 17" Powerbook (1.33ghz & 1.5ghz)and if you compare the Powerbooks displays to some good PC displays they are dim and dingy. I have an IBM Thinkpad T42 with 1400x1050 resolution, when I put it next to my Powerbooks the Thinkpads display is much brighter and sharper. I guess without comparing the Powerbooks to something better they look quite good but pale when you see what is out there.
I hope with the new Powerbooks or when the G5 Powerbooks are released this problem will be rectified.

[Dr.Michael]

Originally posted by love_leeloo:
how the contrast of the 15" can be 700:1 and how the contrast of the 17" can be 650:1, when the contrast of the 30" apple display is only 400:1 ????

I just reported a measurement.
Why do you have doubts?

[love_leeloo]

Originally posted by Dr.Michael:
I just reported a measurement.
Why do you have doubts?

oh no, it was just a question

thanks for your answer

[Dr.Michael]

Originally posted by love_leeloo:
oh no, it was just a question

thanks for your answer

I think this is no surprise.
Contrast depends on the build quality and how good and fast you can switch one single pixel without influencing the neighbors.

The largest screens usually have to make a compromise. They have to have a good quality all over. If you use the process that produces high end quality you might only get smaller areas on your wafer that are flawless.
So very high quality screens are smaller screens. Or the other way round: it is easier to produce small high quality screen than to produce large high quality screens (both at a price that you can get out of the market).

This is only how I understand it. I did not check for accuracy. But thats because I was not surprised that powerbook screens have a higher contrast.

Would be intersting if someone could post a source for the brightness values of Powerbook screens and the missing contrast for the 12 inch models.

[chrisutley]

Totally agree. I want a brighter screen more than a G5 at this point.

Originally posted by striker100:
The Powerbooks displays are under performers. I had both a 15" and 17" Powerbook (1.33ghz & 1.5ghz)and if you compare the Powerbooks displays to some good PC displays they are dim and dingy. I have an IBM Thinkpad T42 with 1400x1050 resolution, when I put it next to my Powerbooks the Thinkpads display is much brighter and sharper. I guess without comparing the Powerbooks to something better they look quite good but pale when you see what is out there.
I hope with the new Powerbooks or when the G5 Powerbooks are released this problem will be rectified.

[love_leeloo]

have you an idea of the "Response time" (in ms) of the powerbook 15" & 17" 's screens ?

for example, the "Apple Cinema Display" have a Response Time of 16 ms

[love_leeloo]

no idea ?

[love_leeloo]

up