Remove Black Bars When Vertical Mirroring

If your TV is placed vertically but the mirrored screen still shows black bars on the left and right sides, don’t worry — this issue can be permanently fixed by adjusting one simple setting i 1001 TVs TV App.

Follow the steps below to make your vertical content truly full screen and fully immersive.

❶ Open the 1001 TVs TV App and Go to “Setting”

1001 TVs TV app home screen with the Settings button highlighted, which is required to adjust vertical display mode and remove black bars.

❷ Tap “Portrait display mode”

1001 TVs Setting page with the Portrait Display Mode option highlighted, used to configure how vertical content fills the TV screen.

❸ Choose “Scale to fill the screen” to Expand the Display

After enabling this setting, the next mirroring session will look completely different.
Check the side-by-side comparison below:

Side-by-side comparison of vertical screen mirroring in the 1001 TVs app, showing black bars before adjustment and full-screen display after enabling Scale to fill the screen.

Tips About Display Options

Inside Vertical Display Mode you will see three choices:

Keep aspect ratio
Keeps original proportions; black bars may remain depending on the device.
Keep aspect ratio and fill screen
Fills one side while keeping correct proportions.
Scale to Fill the screen
Expands the content to fully fill the vertical TV

When Is This Feature Useful?

This setting is perfect for:

Retail stores using vertical digital signage
Home users creating a vertical ambience screen
Teachers displaying vertical class materials
Showing vertical photos or portrait-mode videos
Playing TikTok/YouTube Shorts in fullscreen
Studio, gallery, or art display setups

For the full vertical screen mirroring tutorial, check here:

Vertikal skærmspejling: Skab en ny visuel oplevelse