YPbPr is a way of sending video signals from one device to another.
Let's say you have a DVD player and a TV. If you want to watch a movie, the DVD player needs to send the video signal to the TV. YPbPr is one way to do this.
YPbPr uses three different cables. They are called "Y", "Pb", and "Pr".
The "Y" cable sends the brightness information. This is like the basic picture, without any color.
The "Pb" and "Pr" cables send the color information. They split up the color into two parts: the blue-green part and the red-orange part.
So, when someone sends a video signal using YPbPr, it's like they're sending three different pictures: one with the basic picture, and two with different color information.
When the TV gets the three different pieces of information, it puts them all together to make a final picture that has both brightness and color.
Overall, YPbPr is a way to make sure the picture you see on your TV is high-quality and has both brightness and color.