12-14-2010 02:06 PM
Does anybody know physycal dimensions of the screen area for sure?
I did simple calculation and ended up with
~3.54"x6.04" which i roughly 9x15cm ( I assume LCD dot is square )
Am I right?
This is important to at least on 'paper' simulate 'real' UI Look
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12-14-2010 02:27 PM - edited 12-14-2010 02:28 PM
you're gonna laugh but i did the math a couple of months ago hah. here's what i got assuming the bezel is equal on all four sides:
length: ~3.9 inches (9.9 cm)
width: ~5.812 inches (14.8 cm)
hopefully my math isnt too far off haha
12-14-2010 02:36 PM
12-14-2010 02:48 PM
yeah i wasnt using DPI as a standard for measuring, i was just going by porportions and actual lengths and widths.
here's my math:
Length: 5.1 Inches
Width: 7.6 Inches
Diagonal: 5.12 + 7.62 = (9.153)2 = 9.153 Inches
then using a ratio between of 9.153 inches (outer) to the 7 inches (inner) i got:
7/9.153 = 0.765
then i used that to multiply against the outer meaurements to get the inner measurements:
Length: 5.1 Inches x 0.765 = 3.9 Inches
Width: 7.6 Inches x 0.765 = 5.812 Inches
Well at least thats my logic.
12-14-2010 03:32 PM - edited 12-14-2010 03:33 PM
You guys have all forgotten the "UI Guidelines" webcast already. :-) (Those of you who saw it... those of you who didn't yet should be able to download the PDF for the presentation by registering and starting to watch the webcast, then using the download links in the lower left.)
Page 8 says screen size is 153.6mm by 90mm. 169.3 pixels per inch, or 0.15mm dot pitch.
12-14-2010 03:44 PM
you sir are far too clever. hah. totally missed it. thanks for the clarification!
12-14-2010 09:31 PM - edited 12-14-2010 09:33 PM
169.3PPI? there was another webinar which mentioned it was 167PPI, and i've read on another page from an Adobe employee that the PlayBook has 170PPI.
the accuracy of this number is essential for the application i'm building, so i'm counting on Capabilities.screenDPI to return the correct value. however, obviously, i do not have a device to test so i'm not sure it will, especially since the Samsung Galaxy Tab returns an incorrect value for Capabilities.screenDPI.
it would be great if someone with access to an actual device could test Capabilities.screenDPI on the device and post the results.