ok so you dont want to glue 300 leds 
on a piece of glass and then wire
it all up.
so here is a pcb version that works
but you dont get the glass look
and you need to make a box.


parts

 74hc595 smd  INVERTED  *SEE TEXT
 atmega 328p
 ds1302 smd
 32.768 crystal 6pf load
 16 mhz crystal + 2 caps 22pf
 mini usb female (optional)

 resistors smd: 
 5ea 350-470 ohm 
 6ea 3-5k 
 6ea 1k 
 1ea 10k
 1ea 50k
 20+ 0 ohm (jumper)
 
 caps:
  104pf, 2ea 33mf, 200+ mf

 any n ch mosfet smd


 my first step is to install the 595
because the columns read left to right
the layout is dictated by this fact.
i tried to change the code but the
display is sharper this direction.
so...invert the 595 to fit the pcb.
turn the 595 upside down with the
legs in the air. I find it helpfull 
to mark the edge where #1 pin is on.
take a small screwdriver and push
each leg downward one leg at a time.
now the ic is inverted and lines up 
with the pcb pin#1 up and left.
solder a cornner leg first and line 
up the other legs. then solder the 
opposite cornner leg. then solder 
all legs. FLUX makes this easy as
well as a shinny copper pc.

NOTE THE ROW 595 BOTTOM RIGHT 
LEG IS CUT OFF 

IF YOU FORGET THIS THERE WILL
BE NO DISPLAY



install the leds 
(any size will fit 603,805,1206,3528)
with the negitave side up. 
Usually a green dot or notch.
i have some leds marked wrong so
test them first. with a 9v batt
and a 1k resistor. when the led
lights up the negitave side is up
when mounted on the pc.
the lase step is to run a bare wire
across the top pad of the led 
so all the negitaves are connected


then i install the resistors

then the ics
i cut the 328 legs off at the
skinny point.  
if you have room in the box
you can ic socket the micro.


there are 3 jumps to be made
3-3, 4-4, and U-U 

you need a keypad made of 10 switches
and 10 1k resistors.
this is part of the case and up to
you how to install them. basically
the switches are in a row and eash
switch feeds the next through a 1k r

   ----------------------------o A2
   |  |  |  |  |  |  |  |  |  |
   o  o  o  o  o  o  o  o  o  o   5v
  - mm-mm-mm-mm-mm-mm-mm-mm-mm-mm--o
 |
 o ground



i have a IDE usb connector for a 
mini usb jack. you can replace the
usb with any connector you use.

download the sketch 'reader_ver_1.2'

troubleshoting:
every display i ever made did NOT
work when i finished the assembely.
an led is backward, solder splash,
bad foil run.....
some hints 
if a row of leds are on and only one 
or two leds are out then those leds 
have a solder splash or installed
backwards. if half of the display
works then usually the data line to
the next ic is bad.

good luck 
you will need the instructions 
on how to program the display
and the many features it has.