[tkilian]

Can anyone tell me (measure for me) the VIEWABLE
screen area (height and width) on the 15" powerbook. I need the info
for a research project I'm doing and the new powerbook
is not readily available.

While I can get the machine dimensions from APPLE web site
and APPLE provides the DIAGONAL measurement (That's why its
called the 15 (actually 15.2") PowerBook -
Viewable screen dimensions are nowhere to be had.

Thanks for your help in advance!

[mblchris]

With LCD monitors and laptop screens I believe the screen size advertised is the viewable area (unlike CRT monitors). I haven't actually gotten my ibook yet so I could be wrong though

[Scooterboy]

TFT screens actual viewable size is the same as their stated size. So, the 15" PowerBook uses a 15.2" screen: its screen is 15.2" diagonal.

[deviousgelatin]

15.2".

With LCD screens, the measurement is for viewable area. Tube monitors, it realtes to the size of the tube. As an example, my 15" powerbook screen is pretty much the same size (actually a teensy bit larger) than the viewable area on my blue & white 17" Apple CRT.

[tkilian]

Thanks for such quick replies
but I'm looking NOT for diagonal
length but actual length and
width of the viewable screen.

Anyone know or can measure theirs?

[Ryan1524]

um...1280 by 854 ???

[T9000]

about 12 3/4 x 8 in

[nagromme]

By the Pythagorean Theorem: 12.7x8.4" to the nearest .1"

FYI, here are formulas for DPI and viewable dimensions that will work even when comparing widescreen vs. normal-ratio displays:

H = horizontal pixels
V = vertical pixels
D = diagonal (viewable) inches

DPI = sq.root( H^2 + V^2 ) / D

Horizontal inches = H / DPI

Vertical inches = V / DPI


More than you wanted to know... a while back I used the above to make a list of all my options and help me compare:

Here are all Apple displays, in the order of lowest DPI (largest type) to highest DPI (tiniest type). To compare pixel areas, I've given each one's size in megapixels (H x V / 1 million). A display with twice the megapixels can fit twice the windows and tools. (DPI is rounded to the nearest pixel. HxV inch sizes are approximate within one-tenth of an inch.)

23" Cinema HD Display (doubled to 960x600 in 19.6x12.2"):
49 DPI
.58 megapixels

eMac 15.5"-viewable CRT (at 640x480 in 12.4x9.3"):
52 DPI
.31 megapixels

G3 iMac CRT 13.8"-viewable (at 640x480 in 11.1x8.3"):
58 DPI
.31 megapixels

eMac 15.5"-viewable CRT (at 800x600 in 12.4x9.3"):
65 DPI
.48 megapixels

Mac Plus or SE 9" CRT (512x384 in 7.1x5.3"):
72 DPI
.2 megapixels

G3 iMac CRT 13.8"-viewable (at 800x600 in 11.1x8.3"):
72 DPI
.48 megapixels

eMac 15.5"-viewable CRT (at 1024x768 in 12.4x9.3"):
83 DPI
.79 megapixels

Original 12.1" iBook (800x600 in 9.6x7.2"):
83 DPI
.48 megapixels

G4 iMac 15" or 15" Studio Display (1024x768 in 12x9"):
85 DPI
.79 megapixels

22" Cinema Display (1600x1024 in 18.6x11.9"):
86 DPI
1.92 megapixels

14" iBook or PowerBook G3 (1024x768 in 11.3x8.4"):
91 DPI
.79 megapixels

Original Titanium PowerBook G4 15.2" (1152x768 in 12.7x8.4"):
91 DPI
.88 megapixels

eMac 15.5"-viewable CRT (at 1152x864 in 12.4x9.3"):
93 DPI
1 megapixel

G3 iMac CRT 13.8"-viewable (at 1024x768 in 11.1x8.3"):
93 DPI
.79 megapixels

Rumored 30" Cinema Display (2400x1500 in 25.44x15.9"?):
94 DPI
3.6 megapixels

17" Studio Display (1280x1024 in 13.3x10.7"):
96 DPI
1.31 megapixels

23" Cinema HD Display (1920x1200 in 19.6x12.2"):
98 DPI
2.3 megapixels

20" Cinema Display (1680x1050 in 17x10.6"):
99 DPI
1.76 megapixels

17" iMac or Aluminum PowerBook (1440x900 in 14.4x9"):
100 DPI
1.3 megapixels

15.2" Aluminum PowerBook or updated Titanium (1280x854 in 12.7x8.4"):
101 DPI
1.09 megapixels

iPod 2" (160x128 in 1.56x1.25"):
102 DPI
.02 megapixels

eMac 15.5"-viewable CRT (at 1280x960 in 12.4x9.3"):
103 DPI
1.23 megapixels

12.1" iBook or Aluminum PowerBook (1024x768 in 9.7x7.3"):
106 DPI
.79 megapixels

[tkilian]

Hey Nagromme !!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Wonderful, Ecellent, Perfect !!!!!!!!!!!!!!!!!!!!!!!!!!

Just the information I needed.

Thank you so much -
this will allow me to complete my article/project !

It took some effort for you to complete that post
and I am appreciative.

Thanks Again, Have a nice day!

tkilian

[TheIceMan]

nagromme:

[nagromme]

You're welcome. And don't worry, I compiled most of it for my own use long ago. Cleaned it up and added a few things to post in a forum a year ago... and then added a couple new models that have come out.