U2715H, Backlight bleed

Brightness was set to 50 and what do you mean with no light? First picture and video is taken, you can say, with no light.

I can take new pictures after monitor has been on for 30 minutes and see if that makes any difference.

Nottice that you have to take the photo 30 minutes after the monitor is on, with no light, and very important set Brightness to 50

Rikus78 was correct in stating that you must leave the monitor on for at least 30 minutes before taking a picture of it. We do not validate our monitors in a dark room. We validate our monitors in rooms with a minimum of 150 lux which is standard office lighting. Based on the picture taken in the day, that monitor does fall within our manufacturer specifications for backlight uniformity.

Sorry to hear that from now I shouldn't work in the evenings. Although the top left bleed is also clearly visible in the day picture. Maybe Dell should review their manufacturer specifications.

Took new pictures after monitor was on at least 30 mintues. One in the dark room and another one in the daylight. Didn't see any difference from earlier pictures.

Time of day is not the point. My point was that our manufacturer testing and validation is done in a room using standard office lighting. Any monitor in a dark room will visually exaggerate backlight differences.

Understood. Keep in mind, you only have up to 30 days from the purchase date to decide to keep it or return it for refund.

Thank you for the clarification. Still, the backlight differences are seen even in daylight and if my office has standard lighting then also in standard lighting.

Sure that any monitor in dark room will exaggerate backlight differences, but my wish was, that there wouldn't be any to exaggerate (as with my old dell monitor).

I guess lesson learned for me then.