Hello,
I'm trying to get to grips with an alphanumeric LCD display, in particular this one: http://www.vishay.com/docs/37312/37312.pdf, although there are a few things I'm not quite understanding:
1) I know there is a controller and driver, but what is the difference? It seems the most important part (from using the LCD POV) is the controller, correct?
2) What exactly is the duty cycle?
3) What is an N.V. (used in the phrase, N.V. optional for a +3V supply).
Concerning the datasheet:
4) Under the "Absolute Maximum Ratings", there is a note, Vss=0V, Vdd=5.0V, I'm not quite sure what that is meant to be saying as the valid ranges are given in the "Electrical Characteristics" table?
5) "Electrical Characteristics" table seems to mix symbols quite a lot. For example, the input voltage is given the symbol Vdd, where as it had the symbol Vi in the "Asbolute Maximum Ratings" table, what's going on?
6) Under the "Electrical Characteristics" table, what exactly is meant by the "Input Voltage", "Recommended LC Driving" and "LED Forward Voltage"?
Thank you!
Gump
I'm trying to get to grips with an alphanumeric LCD display, in particular this one: http://www.vishay.com/docs/37312/37312.pdf, although there are a few things I'm not quite understanding:
1) I know there is a controller and driver, but what is the difference? It seems the most important part (from using the LCD POV) is the controller, correct?
2) What exactly is the duty cycle?
3) What is an N.V. (used in the phrase, N.V. optional for a +3V supply).
Concerning the datasheet:
4) Under the "Absolute Maximum Ratings", there is a note, Vss=0V, Vdd=5.0V, I'm not quite sure what that is meant to be saying as the valid ranges are given in the "Electrical Characteristics" table?
5) "Electrical Characteristics" table seems to mix symbols quite a lot. For example, the input voltage is given the symbol Vdd, where as it had the symbol Vi in the "Asbolute Maximum Ratings" table, what's going on?
6) Under the "Electrical Characteristics" table, what exactly is meant by the "Input Voltage", "Recommended LC Driving" and "LED Forward Voltage"?
Thank you!
Gump