android_frameworks_base/data/etc/displayconfig/default_television.xml

<displayConfiguration>
    <densityMap>
         <density>
            <height>480</height>
            <width>720</width>
            <density>120</density>
         </density>
         <density>
            <height>720</height>
            <width>1280</width>
            <density>213</density>
         </density>
         <density>
            <height>1080</height>
            <width>1920</width>
            <density>320</density>
         </density>
         <density>
            <height>2160</height>
            <width>3840</width>
            <density>640</density>
         </density>
    </densityMap>
</displayConfiguration>