You can make a difference in the Apple Support Community!

When you sign up with your Apple Account, you can provide valuable feedback to other community members by upvoting helpful replies and User Tips.

Looks like no one’s replied in a while. To start the conversation again, simply ask a new question.

Red line around screen perimeter

My ipad has started showing red lines around the perimeter of the screen. Does anyone know what has caused this?

iPad Air (5th generation)

Posted on Apr 2, 2023 4:00 AM

Reply
Question marked as Top-ranking reply

Posted on Apr 2, 2023 4:15 AM

The phenomenon that you describe is known as “backlight bleed” - and is often attributable to a defective screen.


The LCD screen has a backlight that illuminates the screen from behind. The screen construction is such that the screen is edge-lit by Light Emitting Diodes (LEDs) distributed around the periphery of the screen; a screen diffuser layer distributes this light across the rear surface of the screen to provide even illumination across its full surface.


The diffuser is a laminated component of the LCD screen. In some circumstances, this layer can de-laminate from the LCD - allowing light from edge backlights to leak (or “bleed”) into the visible edge of the screen - this effect being most noticeable in dark environments with a bright screen.


The only remedy for this fault is screen replacement - which may be expensive. If within warranty, this should be fixed by Apple for free.

1 reply
Question marked as Top-ranking reply

Apr 2, 2023 4:15 AM in response to Elsiems

The phenomenon that you describe is known as “backlight bleed” - and is often attributable to a defective screen.


The LCD screen has a backlight that illuminates the screen from behind. The screen construction is such that the screen is edge-lit by Light Emitting Diodes (LEDs) distributed around the periphery of the screen; a screen diffuser layer distributes this light across the rear surface of the screen to provide even illumination across its full surface.


The diffuser is a laminated component of the LCD screen. In some circumstances, this layer can de-laminate from the LCD - allowing light from edge backlights to leak (or “bleed”) into the visible edge of the screen - this effect being most noticeable in dark environments with a bright screen.


The only remedy for this fault is screen replacement - which may be expensive. If within warranty, this should be fixed by Apple for free.

Red line around screen perimeter

Welcome to Apple Support Community
A forum where Apple customers help each other with their products. Get started with your Apple Account.