Ilitek visit

Werner Almesberger werner at openmoko.org
Sat Jul 17 11:32:05 EDT 2010


Wolfgang Spraul wrote:
> The problem is that a 3.5'' LCM wouldn't fit vertically, and
> 3.2'' are rare.

How about WQVGA ? [1] That would have about the same height but a few
more pixels on the side. A quick Google search finds:

Device			Diag.	Pixels	Size (calculated)
-----------------------	-------	-------	-----------------
Ben			3"      320x240 61x46 mm (*)
Gfive G3000 [2]		3.4"	400x240	74x44 mm
DM355 Barnacle [3]	3.4"    480x272 75x43 mm
P05-X10 [4]		3.5"	?	?
Sony A960 [5]		3.5"	?	?
EGS E800 [6]		3.6"    400x240 78x47 mm
WiFi DVB-T [7]		3.6"    400x240 78x47 mm

(*) The data sheet says it's 60x45 mm.

[1] http://en.wikipedia.org/wiki/Wide_QVGA
[2] http://www.91mobiles.com/mobile/Gfive/G3000/5981.html
[3] http://www.mpc-data.co.uk/barnacle-oled-expansion-board-for-the-texas-intruments-dm355-evm/
[4] http://www.tinydeal.com/35-wqvga-touch-4-band-2-sim-cell-phone-java-wifi-bluetooth-tv-opera-mini-msn-skype-facebook-ebuddy-p05x10-p-2648.html
[5] http://www.tradetang.com/for-sale/Free-shipping-3-5-inch-WQVGA-Screen-Sony-A960-Version-mp4-MP5-Player-8GB-Memory-Movie-Player-AVI-MP4-AVC/128493-1871077.html
[6] http://www.solomobi.com/viewproduct.asp?pro_id=3890
[7] http://wisecorp.en.made-in-china.com/custom-detail/xmnxQmJjeEyQxmQExQndGJUQ/WiFi-DVB-T-Mobile-Phone-Dual-SIM-3-6-WQVGA-Screnn.html

Not sure of the 3.5" devices are for real. I've seen the "Sony A960"
also listed as 2.8" at some places.

Here's a script to do the size conversion:

#!/usr/bin/perl
($d_in, $w_p, $h_p) = @ARGV;
$d = $d_in*25.4/sqrt($w_p*$w_p+$h_p*$h_p);
print $d_in, "\"\t", $w_p, "x", $h_p, "\t",
    int($d*$w_p+0.5), "x", int($d*$h_p+0.5), " mm\n";

Usage:
./wqvga 3.6 400 240
3.6"    400x240 78x47 mm

- Werner




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