How LCD Screen does it ?

Joined
Oct 29, 2006
Messages
4,829
Location
İstanbul
Format
35mm
How it would be possible to address every each pixel and send them different signals without interrupt at a LCD screen or camera sensor ?
I know there are transistors but how to send information to one pixel when there are thousands of them around ?
Can anyone explain if possible with transistor theory.
And how an ic compute the complex commands n such tiny space ?
We are all using such equipment and its huge problem for me.
How many transistors do we need to make an basic calculator for example ?

Umut
 

Hexavalent

Member
Joined
Nov 19, 2009
Messages
592
Location
Ottawa, Onta
Format
Multi Format
Look up active and passive LCD matrix displays, and CCDs. Typically pixels are addressed in a row/column fashion, not "all at once".

Not sure what this has to do with analog photography though.
 

polyglot

Member
Joined
Jun 12, 2009
Messages
3,467
Location
South Australia
Format
Medium Format
Small ones are typically a matrix. Each pixel (or element in a simple display like calculator) is connected to a column wire and a row wire, to activate a single pixel you drive the correct pair of wires. For a 6-digit 7-segment display, you would normally have 6 columns (the digits) and 7 rows (the segments) and scan through accordingly. You need to scan the whole display fast enough (100Hz+) that the eye doesn't notice the flicker.

I suggest you do some googling. There are excellent free logic-design courses online that will teach you all of this, including how all the state machines work, etc.

This is not very analogue and I suggest we stop here.
 
Cookies are required to use this site. You must accept them to continue using the site. Learn more…