What is this? Black foggy tint on screen display edges

[Geodie]

It just recently happened, where the upper left edge of my screen had a black foggy tint. It only shows whenever I open an app folder or when I check recently opened apps. It started with just one edge and then the upper right and the bottom edges as well. I was able to take a screen shot of it too!

EDIT: This happened last night but when I woke up earlier, it's already gone!

[Khaled75]

What does it normally look like?

[Geodie]

It just looks normal, no black tint or whatever. It happened last night but when I woke up earlier, it's already gone. Back to normal.

[TeamGalaxyRene]

Hello Geodie,

We are sorry to hear about your experience with your Samsung Galaxy phone having issues with a black fogging tint at the upper left of the screen display, and we apologize for the inconvenience it caused you. 

If it happens on my device, I will get worried too. But don't fret; we are here to guide you and offer solutions to restore your device to optimum performance.

Before you try out the recommendations below, be sure to check if your device's software and related apps are updated to the latest version. To update your mobile device's software, follow these steps:

Step 1. Go to Settings > Software update.

Step 2. Tap on Download and install.

Step 3. Follow the on-screen instructions.

Step 4. Restart your device.

If that doesn't work, you may submit an error report through the Samsung Members app as follows:

Step 1. Long press Samsung Members icon on Apps screen and tap Error reports.

Step 2. Tap OK on agreement popup to send system log data.

Step 3. Select Symptom category "Display".

Step 4. Describe the problem in details and SEND.

How to submit an error report on Samsung Members app? | Samsung PH

If the problem persists, immediately bring your device to the nearest Samsung Authorized Service Center. Rest assured that our Samsung Engineers and Technicians are competent to assess your device, make suggestions, and offer to provide prompt solutions to restore it to optimum performance.

https://www.samsung.com/ph/support/service-center/

For more assistance and guidance, you may contact us via our online Samsung Customer Care support channels below.

https://samsung-livechat.sprinklr.com/seao/ph/index.html 

https://www.samsung.com/ph/support/contact/#onlinesupport  

Or our Samsung Customer Care direct hotline numbers below.

#GALAXY or #425299 [Mobile Phones & Tablets]

Available 24/7

1-800-10-7267864 [All Product, Toll Free, PLDT]

1-800-8-7267864 [All Product, Toll Free, Globe]

842 221 11 [All Product, Landline]

Daily (8:00am to 8:00pm)

Let us know if you've found a solution by tapping "Accept as Solution" on the answer you like!

Stay safe and have a nice day ahead! Thanks for contacting Samsung.