--===============0639535615==
Content-type: text/plain; charset=GB2312
Content-transfer-encoding: 7bit

> Since these LCD does not have backlight. I did some research and
> thought that I can use a transflective LCD with some little surface
> mount LEDs at the back of the LCD as backlight. These LEDs should
> have a very wide viewing angle, very small lumen

If you don't have much space behind the LCD then that would be one
solution. I've found that one or two LEDs and a guide/reflector works too

If you have room to do so, a good way would be have the back of the
LCD open and shine LEDs at it from a distance, which will help spread
the light. LEDs are too strong as point sources close up . The driver chip
and anything else that would make a shadow would be mounted outside
the perimeter of the display


--===============0639535615==
Content-Type: text/plain; charset="us-ascii"
MIME-Version: 1.0
Content-Transfer-Encoding: 7bit
Content-Disposition: inline

-- 
http://www.piclist.com PIC/SX FAQ & list archive
View/change your membership options at
http://mailman.mit.edu/mailman/listinfo/piclist

--===============0639535615==--