Okay, so imagine you have a big TV screen. When you turn it on, you see a lot of different things on the screen like pictures, words, and videos. Sometimes, you might need help knowing what each part of the screen means or what you can do with it. That's where the on-screen display comes in!
The on-screen display is like a helper that shows you information about what you're looking at on the screen. It can tell you things like how loud the TV is, what channel you're watching, or what time your favorite show starts. It can also help you make changes to your settings, like making the TV brighter or turning on closed captioning.
When you press buttons on the remote control, it can change what you see on the on-screen display. So, if you press the volume button, you might see a little bar that moves up and down to show you how loud the TV is. Or if you press the channel button, you might see a list of all the channels you can choose from.
Overall, the on-screen display is like a guide to help you use your TV better. It can tell you what you need to know and help you make changes to your settings very easily.