I wrote:
  I shall have a look at the website someone mentioned -
thanks.
 But meanwhile, can someone who has a Sharp please e-mail me with a brief
 description of the segments of this 8-or-9-segment display and which
 ones light up for which digits. 
Amazingly, there is a good image of it on the website.  My last request
is therefore redundant.
Thank you one and all.
Philip.