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How to drive hundreds of LEDs

Other Parts Discussed in Thread: LM3409, TLC5971

Hi Team,

I have come across many LEDs decorative displays on the street which contains many LEDs arranged in a specific design and some of them also glow in specific  patterns.

How to drive such hundreds of LEDs and Is there any IC/module for such applications?  I had inspected the back panel of the display but there isn't any complex IC/module. Here is the picture of such display for your reference and also watch the video (
www.youtube.com/watch 35 seconds to better understand the concept.

https://www.youtube.com/watch?v=H-OXxrQd-7k

Normally ICs come in 8 pin/16 pin/28/ pin configurations. However to drive such large number of LEDs we need many ICs. Is there any technique to drive such large number of LEDs with fewer ICs?

Thanks,

Arun