need help with lcd

السلام عليكم و رحمة الله و بركاته

peace be upon all of you

i am kareem gamal
this my first post
and i am glad to be with you

i do need help to learn any thing about LCD , its driver , its types and how to deal with it


and thank you for your efforts


peace be upon all of you

You need to be a little more specific, since your post covers a range of devices with different standards.

Are you interested only in LCD's with driver chips onboard, bare glass LCD's, or both?

Are you working with a microcontroller and wish to interface to an LCD?

Which family of microcontroller?

Are you wishing to use 4 or 8 bit?


Info, info, info!

Here's something to get you started, which covers 8051 & PIC:
**broken link removed**

And another:
**broken link removed**

And here are a few related links from Nigel Goodwin's PIC tutorials:





HTH.

What do you already know about LCDs? Is there anything you're unsure of?
Do you have any specific question?

well , thank you for your help

i am asked to make a report about lcd and how to interface it with microcontrooler

i want to interface lcd (which i dont know anything about it) with pic16F84A

and write some words on it

the main problem is that i dont know alot about LCD

and many thanks for you

Take a look at my tutorials, which show how to interface LCD text modules to 16F series PIC's.

Is it the HD44780?
The first time to do is read the datasheet.
https://www.electro-tech-online.com/custompdfs/2009/04/HD44780.pdf
You may not understand everything in it but just read it a few times and take in what you can from it. Then ask a question about something in it if you want.

ok i have some questions

1 - what is the difference between segment signal and common signal
2 - what i have understood that any lcd can write matrix of characters with 2 dimension and each character consists of a 2 dimension matrix of dots
3 - the RAM in the driver is to store the dot matrix of each character . is that true or not
4 - what is the character generator
5 - what is the use of the ROM

thank you every body

a friend of mine has send good tutorial for LCD and a simulator for it
the tutorial is for microcontroller and its applications and one of them is LCD

here it is

Architecture and Programming of 8051 Microcontrollers | Chapter 6 : Examples

and the simulator

LCD Simulator {/JavaScipt}

really thank you for your efforts