I've recently started exploring how computers work and grasped the basics of transistors switching on and off to create binary code. However, I'm puzzled about the next step: how does this machine code translate into letters on an LCD screen? For example, I know that 01001000 corresponds to 'H' with ASCII code, but what's the process that tells the LCD to show 'H' from this binary? If I had transistors and an LCD but no coding access, how would I connect the transistors to display 'H'? Is it a complex setup with logic gates?
1 Answer
So, the LCD has a character map that defines which pixels correspond to each character. For 'H', it has a specific pattern of bits that tells the display which pixels to light up. To get a simpler grasp, check out 7-segment displays—they’re basic and easier to manipulate with transistors. Ben Eater has a great YouTube video on this!
Thanks! So, does this mean that computers come with built-in ways to handle this for LCDs?
Thanks for the explanation! I had a similar question but wasn't sure how to ask it.