Good morning Everyone!

I have been thinking that it would be an interesting idea to replace the sony screen in the n900 with the LG screen from the new iphone. I can see several issues with this "upgrade":

1. Connection, Ribbon Length
2. Physical Size (depth, bezel)
3. Once its in and connected, Drivers
4. Resistive, touch adaptation

The panel is supported by panel-acx565akm driver (drivers/video/omap2/displays/panel-acx565akm.c), which is enabled by PANEL_ACX565AKM option:

config PANEL_ACX565AKM
tristate "ACX565AKM LCD Panel"
depends on OMAP2_DSS_SDI
select BACKLIGHT_CLASS_DEVICE
help
LCD Panel used in Rover

oslo:/sys/class/backlight/acx565akm# dmesg | grep acx
[ 3.074279] omapfb: acx565akm rev 8b LCD detected

oslo:~# ls -l /sys/class/backlight/acx565akm/
-r--r--r-- 1 root root 4096 Dec 8 21:15 actual_brightness
-rw-r--r-- 1 root root 4096 Dec 8 21:16 bl_power
-rw-r--r-- 1 root root 4096 Dec 8 21:15 brightness
-r--r--r-- 1 root root 4096 Dec 8 20:10 cabc_available_modes
-rw-r--r-- 1 root root 4096 Dec 8 20:10 cabc_mode
lrwxrwxrwx 1 root root 0 Dec 8 20:10 device -> ../../../devices/platform/omap2_mcspi.1/spi1.2
-r--r--r-- 1 root root 4096 Dec 8 20:10 max_brightness
drwxr-xr-x 2 root root 0 Dec 8 21:16 power
lrwxrwxrwx 1 root root 0 Dec 8 20:10 subsystem -> ../../backlight
-rw-r--r-- 1 root root 4096 Jan 1 1970 uevent

If you wonder, CABC stands for Content Adaptive Backlight Control. It allows reducing backlight or brightness levels depending on the image being shown to save power. For instance, if the image contains only dark pixels, the brightness of the backlight can be reduced. This will naturally boost the pixel value. Available modes are:

oslo:/sys/class/backlight/acx565akm# cat cabc_available_modes
off ui still-image moving-image

Im pretty sure Apple wont let up off the drivers for their screen, but if i were able to connect the new iphone screen, how hard would it be to utilize the higher density of pixels? can the OS be scaled for the change in resolution?
Links:

http://cnn.cn/shop/nokia-n900-screen-p-8736.html
http://chinaontrade.com/apple-iphone...een-p-477.html
thanks guys

is the n900 screen from sony?nicelike my tv ones....

You'll have to make sure that the physical connections on the ribbons are the same. Otherwise you'll either have to find a new screen or make some sort of adapter. The adapter will require some serious electrical engineering skills.

funny idea

yea, thats what i was worried about, i was wondering where i could find the information for the connectors for the screens. and if i could find a connector, would it fit in the chassis? would it be long enough to reach the ref.board, a few questions that im not sure where to find an answer. regardless, do you guys know where i could find info on the connectors on these screens?

praying for a standard, reference board connection. but there looks to be an extra connector piece on the end of the ribbon on the n900/sony screen.

who knows if it will be 1:1 ... the screen is only 60$ though ...
thanks ahmad!

Source on that price?

according to iSuppli, the screen COSTS $28+ ... i have searched around the net this morning and was able to find it readily for over $99, however i found a chinese site that had it for $65: http://chinaontrade.com/apple-iphone...een-p-477.html

Got anything with some more detail as to part numbers? Determining the likelihood would be easier if you could dig up datasheets on both that display and the one currently in the N900.

I highly doubt compatibility, but it can't hurt to look.

if it's possible to connect it in some way, what about resistive vs capacitive ? or can it be solved by porting MeeGo which uses capacitive screens ( like the new intel tablet ) ?
i think it should be tested with any matching kind ( connector speaking ) of capacitive screen and then try to solve the new iphone screen issue.

I'm willing to donate my n900 to science and i have some used 3gs screens at home to try if someone is willing to handle the software and porting issue.


it sounds out of reach and far from being doable but we all need to remember that 3 months ago so was the overclocking idea

We don't know if the N900's Maemo can handle the resolution of the iPhone screen.

Eg. even if it is physically possible to fit it, it is possible that the OS can't utilize the extra space.