elvn
Supreme [H]ardness
- Joined
- May 5, 2006
- Messages
- 5,311
The 1st is a 2017 model and had more issues then the 2018/19. The rting testing is not normal daily use case. If you plan on watching/gaming 20/7 then yes OLEDs are not for you. So basically the test simulated over 5 years of tv use before substantial burn-in occurred. Which still doesn't represent normal use. 5 year is pretty reasonable life for TVs nowadays and more then likely you will still get a lot more out a OLED. I don't baby my c9 and haven't changed my viewing habits and will enjoy the beauty of this TV. If I have issue after a year I will eat my words.
The Rtings tests were done at 175 nit and 200nit. The second one they set on CNN as an "extreme" test was 380nits so none of them were showing any HDR brightness whatsoever. I'm sure the 55" alienware by dell being a solid SDR 400nit color brightness peak is no coincidence. I believe LG oleds spike into the high 700 nits to 800nit in small % and overall scene is kicked back to 600nit max via ABL auto brightness limiter dimming the whole scene well below the now 600nit overall. Of course you usually aren't watching HDR content as static images but HDR should eventually take over as a higher range color brightness 3d color gamut so will be in photos , wallpapers and apps someday, streaming services, more games, and editing of HDR images, graphics and videos. It would be interesting to see the results if they had run HDR material on a loop on a few OLED tvs as well.
=================================================================
RTINGS https://www.rtings.com/tv/learn/permanent-image-retention-burn-in-lcd-oled
TEST SETUP
"The TVs are placed side-by-side in one of our testing rooms as shown to the right. The TVs will stay on for 20 hours per day, 7 days per week, running our test pattern in a loop. They will be turned off for 4 hours each day using USB infrared transmitters connected to each TV and controlled by a PC to better represent normal (but still very heavy) usage. Calibration settings have been applied, with the backlight or OLED light set to produce 175 nits on our checkerboard pattern. On the B6, the 'Pixel Shift' option is enabled. A single Android TV Box is used as a source, with a HDMI splitter used to provide the same material to each display."
"A 5.5 hour video loop is used as the test pattern. It has been designed to mix static content with moving images to represent some typical content. The base material is a recording of over the air antenna TV with RTINGS overlay logos of different opacities and durations, and letterbox black bars added. These additional elements are:
- Top and bottom: Letterbox bars present for 2 hours, then absent for 3.5 hours (movie example)
- Top left: 100% solid logo, present for the whole clip (torture test)
- Top right: 50% opacity logo, present for the whole clip (network logo torture test)
- Bottom left: 100% solid logo, present for 2 hours then absent for 3.5 hours (video games example)
- Bottom right: 50% opacity logo, present for 10 minutes then absent for 2 minutes (sports or TV shows example) "
- The total duration of static content. LG has told us that they expect it to be cumulative, so static content which is present for 30 minutes twice a day is equivalent to one hour of static content once per day.
- The brightness of the static content. Our maximum brightness CNN TV has more severe burn-in than our 200 nits brightness CNN TV.
- The colors of the static areas. We found that in our 20/7 Burn-in Test the red sub-pixel is the fastest to degrade, followed by blue and then green.
CNN "MAXIMUM" Brightness test they did is only 380nits:
"As above, live CNN is played on the TV through a cable feed. However, for this TV, the 'OLED Light' is set to maximum, which corresponds to a brightness of 380 nits on our checkerboard pattern. This is to show the relationship between burn-in rate and 'OLED Light' with the exact same content and over the same time period.
=================================================================
If you use a big OLED as another monitor in an array set up as a dedicated "cinema/game screen" and never put icons or taskbars or anything on it regularly it would probably be fine with it's ABL limits, at least for 3 - 5 years anyway I'd guess unless you got unlucky... but for regular PC desktop/app with a screen designated as monitor use I'm sure DELL was being smart about it using SDR 400nit color peak.
Most of the OLED laptops are also low nit screens well below the HDR1000nit standard so are mostly SDR screens at ~400nit color and less, with 600nit being more like "SDR+" (400nit SDR and through a few hundred nit nore to peak colors ceiling). Since the 483nit hp and the 626nit xps 15 are still within the limits the tvs use they might be relatively safe and laptops tend to power save and blank screen more by default unless you change it. compared to using a pc at a desk. (The xps 15 screen has complaints of grey banding and black crush though so might not be that great overall anyway reportedly).