Change LCD Innolux to OSD

Dear all,

I like change at my FriendlyARM Mini2440 the LCD from the existing Innolux
AT070TN83 to OSD070TN84.
while comparing both Data Sheets I find out that all PIN connectivities are
the same, just the power consumption of Panel and Back Light is differnt.

                Panel power         Back Light
Innolux          0.825W              2.500W
OSD              0.990W              1.728W

can I change the LCD without any restictions?

thanks in advance for your support.

kr

Gregor

If your only concern is power consumption it looks like the OSD solution
will draw slightly less current, which is a good thing if you get the same
light output.

Working out power consumption to the 4 significant digit seems a bit OTT to
me.  With production spreads if they got it within 2 significant digits I'd
say they were doing pretty good.

Hi,

Have you looked at the timing? You will have to change the drivers if the
timing or resolution isn't the same.

Thank you,
Errol

Hi Errol,

I compared the whole Data sheets of both LCD. there is apart the power
consumption at back light and Panal now different.
also I use a power supply which cover the needs as explained at data sheet.

but I can't run this OSD070TN84

do you know what is the meaning of the different numbers at ID code of this
LCD's? Innolux TN83 and OSD TN84.
And to what driver I should use if there is somet diffent with timing, even
it is not mentioned at the data sheets?

Thx for your support

Gregor

If there is no mention of timing requirements in the data sheet it would
make writing a driver just a bit difficult.

If timing is important and/or non-standard I would expect that there is
some specific documentation with the details.

Does the manufacturer have a specific Linux driver for their LCDs?

Are you talking to the manufacturer or just the distributor?

Had a chat with our LCD guru and he says you want to get driver information
as that is where all the timing requirements should be handled.

The driver chip should be specified on the LCD display datasheet.

Good luck.

I think it's interesting that the OSD power data matches the power data in
the revision history of the AT070TN83 datasheet (check out the download
section of this website for Innolux datasheet).  I think OSD is buying the
Innolux display and putting their name on it, they just haven't kept their
customized copy of the datasheet up to date with the Innolux datasheet.

I requested a quote from OSD on the OSD070TN84 display today, and they
quoted OSD070T0480-04TS A1 instead.  The datasheet for this display looks
like an out of date hack of a previous version of the Innolux datasheet.
They say it is a direct replacement for AT070TN83 (but with a touch
screen).

In this case, How to change the driver part in linux kernal.