Don't know if it's the same kind of flicker as phones/tablets, but all the displays based on LG's panels do flicker. Not just at low brightness but at all times. Seems to be the way they refresh. Unfortunately in my case it's enough to cause eyestrain / headache within several minutes of dark...
I guess it depends on how you define "self-emissive", but a raster scanning display, for example Laser Phosphor Display could potentially have less burn-in risk than any OLED or μLED while retaining excellent contrast, and having inherently superior motion.
Hah, I never checked Ebay for this. Cool to see the actual units
On the laser pico projectors they use a tilting micromirror to steer the beam in a raster pattern. It seems pretty straight-forward... I think the tricky part is using internal reflection to take up the throw distance, since the...
(a couple years back I posted a thread at BlurBusters about this. Posting here since I'm interested in HardForum's thoughts.)
LPD is a rear projection display using a scanning laser (ultraviolet) which excites coloured phosphors on the screen - Very similar principle to CRT (which steers an...
Thanks I didn't see that quote from Rtings before. Confirms my observations... Nope, I can't see it directly, but after ~15 minutes of dark room viewing I get eyestrain / headache.
Here's a collage of the Pana OLED (right) at different luminance settings side by side with a CCFL LCD. Curving of...
Yes, these look like uncoated panels. The poster I was replying to was unaware of why glossy panels had a bad reputation for use in lit environments. Screens like that are the reason.
AR coating leaves a "red hued variant" of the reflections, as you've said - everything is tinted with that hue...
On the Panasonic OLED that I tested which used an LG panel, flicker was always present regardless of settings - consistent with Rtings measurements of all the LG OLEDS which show a regular luminosity drop:
Early and low-end glossy screens have bright reflections. Newer and high-end screens dim the reflections significantly using an optical coating (at the expense of colour accuracy).
With a diffuse surface, reflected objects are not recognizable, movements are more concealed, while contrast...
Interesting - so kind of like the phosphor layer on CRT or plasma... I wonder if the R-G-B of the subpixels is actually visible with the display OFF and looking with a magnifying glass in a lit room.
Also now curious if shining a blue light from the front will activate the quantum dots.
The Alienware (top) is clearly flickering. I thought it was supposed to be flicker free?
https://www.certipedia.com/quality_marks/1111246519?locale=en
This is the third or so clip of it I've seen where flicker is visible.
OK so it seems like it's an artifact of the content - black/grey bar of the interface, not necessarily the program itself. This makes sense if it's a hardware issue, which I'm suspecting. I know that when a monitor's LCD is showing black it is applying the most power to those pixels. It seems...
Interesting - so if you take a screenshot with the same window in view, paste it into paint or another image editing/viewing program, wiggle that window around, you don't see the effect?
Is it the horizontal band on the blue that's following the window movement?
I've seen something like this with analog cables. How are you connecting with the monitor?
Nice. That's good to hear. Looking at the manual I didn't see any resolution at less than native with 175Hz noted, so I was concerned that this was a limitation.
Hmm, I was thinking perhaps signal was being scaled to fullscreen, that's why it was indicating that? Logically, it should be able to do 1920x1080 at 175 Hz unscaled...
Also, if anyone has run it at 2560x1440 @ 175 Hz, please confirm.
Probably you were not using it in a light controlled room. In a lit room CRT has even worse effective contrast than common LCDs because the room light is illuminating the phosphor layer from the front, and that phosphor was at best dark grey - so that raises the black level and washes out the...
Actually at 60 Hz instant pixel transition will make motion look worse than on an old LCD monitor. For the same reason that playing a game at 24 fps feels noticeably choppier than watching a typical 24 fps film - The film has motion blur "baked in" to each frame which softens the frame to frame...
If it flickers it causes eyestrain in sensitive individuals. Whether it is technically "PWM" or not, is not really relevant.
It does not have to be a visible flicker to be problematic. Most of the time it's invisible.
I had to return a LG panel OLED TV since it would give me eyestrain/headache...
Some Full Array Local Dimming TVs use PWM to dim the LEDs only in the darker area of the image, which does cause problems for sensitive individuals.
This dimming method might explain why TUV has certified this QD-OLED as "flicker free"... They may have tested only white/bright fields at varying...
Unfortunately all the OLED TVs based on LG panels flicker and in my case this also causes eyestrain and headache. Had to return an otherwise beautiful Panasonic OLED due to this.
The dips in the graph you can see in post #7 indicates drop in luminance. Seems to be the way these panels refresh so...