Images displayed in "--serve lab" but not in APP

It’s so shy, but i need to display some images in my app. The code it’s this:

 <button (click)="infoPagina()" class="botonmenu">
        <img src="../../assets/img/informacion.png"/>

It’s showing in my serve lab, but not in my app. I don’t know what. The images are in myApp/scr/assets/img/informacion.png. Any have this problem too? thanks for the help.