How is the image formed in the matrix?

Question

Iron

Good afternoon!

How is the formation of an image in a matrix of large sizes 4K, 8K, etc., including the control of the controller built into the matrix? It turns out that if there are 4 thousand pixels in the matrix, of which there are only 12 thousand pixels, in order to apply voltage to each sub pixel, there must be an electrode? Do I understand correctly that somewhere in the matrix there are 12 thousand electrodes? How are these 12,000 electrodes connected to the controller to apply a specific voltage to each sub pixel?

Answer 1

There are a lot of controllers, each responsible for its own fragment of the image.

Answer 2

For example, you can read this:
https://infopedia.su/12xb508.html