[Arm-netbook] 7 inch Tablets suggestions

[Luke Kenneth Casson Leighton]

On Sun, Jan 15, 2017 at 6:48 AM, Allan Mwenda <allanitomwesh at gmail.com> wrote:

> Could you possibly bump up the resolution to 720p and make it a 3G tablet as
> well?

 allen: i found from the exploration of developing the 7in tablet a
couple of years ago that it's really rather tricky to make.  it's
absolutely critical to get the exact matching capacitive panel and
LCD, where the connectors come out in *exactly* the right place, and
the components on the back of the LCD are also in *exactly* the right
place to not interfere with (hit) other components, where 0.5mm
clearance is really, *really* important...

 ... and you then have to arrange for exactly the right size of battery...

it's hellishly complicated in other words.

so.  let me put it this way.  if you'd like to see such a product
exist, help find the 720p LCD and the associated capacitive panel
(with matching sizes: no point having a viewport that doesn't match
the LCD).  do a google search, and look on taobao, aliexpress and so
on.  you want parts that are commonly available (not a
special-order-item, do not require copyright on the decal of the
capacitive panel, do not require a MOQ of say 1,000 pieces and so on).
samples should be easy to get.  pricing in QTY 250 and 1k should not
be insane.

you will also need to make sure that the datasheets are available,
publicly, and do not require NDAs, and also that there is a linux
kernel driver for the capacitive panel driver IC (which should be I2C
not SPI or USB).

be prepared for this process to take at least eight to twenty weeks,
so you'll need to be very very patient.

i already have a source for the 3G module, the SEW291, so that's taken care of.

l.