I'm trying to connect a cbc016002A29 LCD to 5V, and the tutorial I'm following says:
Next we'll connect up the backlight for the LCD. Connect pin 16 to ground and pin 15 to +5V. On the vast majority of LCDs (including ones from Adafruit) the LCD includes a series resistor for the LED backlight.
If you happen to have one that does not include a resistor, you'll need to add one between 5V and pin 15. To calculate the value of the series resistor, look up the maximum backlight current and the typical backlight voltage drop from the data sheet. Subtract the voltage drop from 5 volts, then divide by the maximum current, then round up to the next standard resistor value. For example, if the backlight voltage drop is 3.5v typical and the rated current is 16mA, then the resistor should be (5 - 3.5)/0.016 = 93.75 ohms, or 100 ohms when rounded up to a standard value. If you can't find the data sheet, then it should be safe to use a 220 ohm resistor, although a value this high may make the backlight rather dim.
Now I'm looking at the datasheet of the LCD and I cannot figure out if the LCD contains a resistor, or not, and where to find the maximum backlight current and typical backlight voltage drop. I suppose I should be looking somehwere in these two lines, but I have no idea what's the difference between array/edge values:
Here's the datasheet I'm looking at: http://pdf.datasheetcatalog.com/datasheet/vishay/016m002b.pdf