TTS but without the Speech

With devices that have a screen (like Lenovo Smart Clock) is there a way to send text to the display without audio?

Thinking something like a solid red background with text of “Front Door”.

Use case would be to alert me while on a work call without the audio being heard on the call.

Actually, this may do what I need.

You can just follow the example from the docs to do what you want

https://www.home-assistant.io/integrations/cast/#using-the-built-in-media-player-app-default-media-receiver

You can adjust the URL in the example to change the colors and text (and image resolution)
http://via.placeholder.com/1024x600.jpg/FF0000/FFFFFF/?text=FRONT%20DOOR!

Thanks!
I tried that but it doesn’t actually show anything. The clock does change (to a music player) and no sound, but no image. I’ve tried with the url as well as with a local 'media source option.
Maybe the Lenovo can’t do it?