John Payson wrote: > > You are very observent; most cheap 1-line displays are indeed wired > like that, precisely to save the cost of adding another display > driver chip. The few single-line displays that aren't wired like > that cost more (because of the extra chip) but have better visibil- > ity (because of the 1/8 duty cycle). Note that when operating such > displays in single-line mode, the LCD drive voltage should be lower > than for 2-line mode. > > I have cleared up my initial problems with the 16x1 display, i still however hav e a problem with the contrast. When in single line mode the contrast is ok, but whe n i change to 2 line mode the display can only be read at angles almost parrallell w ith the display, i spose this has something to do with the 1/16 duty cycle of the 2 line mode. For contrast control i am using a 10k linear potentiometer. And the display is running off a 7805 voltage regulator(5v). Can anyone suggest what i can do to improve the visibility, (which is currently useless on 2 line mode). thanx Tim Lunn