Has there ever been any thought given to randomizing the location of the test pattern for black uniformity?

While I understand the need for a uniform test across all TVs, I also wonder if manufacturers could be pinpointing certain tests from RTINGS and other outlets to perform exceptionally well on them.

Maybe you could use the uniform location you’re currently using (center of the screen) and then also on a random location on the screen to highlight whether or not the TV performs differently?

Nov 01, 2024 09:55 AM By DoubleA

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Has there ever been any thought given to randomizing the location of the test pattern for black uniformity? While I understand the need for a uniform test across all TVs, I also wonder if manufacturers could be pinpointing certain tests from RTINGS and other outlets to perform exceptionally well on them. Maybe you could use the uniform location you’re currently using (center of the screen) and then also on a random location on the screen to highlight whether or not the TV performs differently?

Hey there. I think there might be a slight misunderstanding here. Our uniformity test doesn’t just look at the center of the screen, it looks at the entire screen. The cross in the center for the black uniformity test isn’t what we measure, it’s just a tool used to make sure that the backlight remains on, otherwise many TVs would simply turn the backlight off with a black uniform test pattern.

Nov 01, 2024 12:11 PM By  Adam Babcock

Hey there. I think there might be a slight misunderstanding here. Our uniformity test doesn’t just look at the center of the screen, it looks at the entire screen. The cross in the center for the black uniformity test isn’t what we measure, it’s just a tool used to make sure that the backlight remains on, otherwise many TVs would simply turn the backlight off with a black uniform test pattern.

Understood, I suppose I figured manufacturers could focus on something like your test and ensure it performs well by strategically placing dimming zones. Thanks for the explanation!

Hey, hello! Since the middle of last year, I have been testing more than 15 different monitor models in search of a replacement for my current monitor. During this process, I noticed that some monitors cause eye discomfort, while others do not, regardless of the panel type. I would like to better understand what causes this difference — is it the refresh rate, the brightness, the color calibration, or some other factor? Even though the monitors have similar specifications, the visual experience can vary quite a bit. I have purchased IPS monitors that did not cause the typical eye discomfort, such as the Alienware AW2523HF, and others that did, like the LG UltraGear 24GS60F-B. The same happened with TN panels: I bought models like the Dell Gamer S2421HGF, which did not cause discomfort, and the BenQ ZOWIE XL2411K, which did. I also tested monitors with VA panels, and without a doubt, they caused the most discomfort. This leads me to question what, in fact, influences this sensation.

I have another question: why does the IPS Glow effect cause discomfort, irritation, and a burning sensation in the eyes on some IPS panels, while on others it doesn’t? What could be influencing this difference? As I mentioned before, the Alienware AW2523HF didn’t cause any visual discomfort, while other monitors, like the Asus VG279QM — which has better black uniformity and a less pronounced IPS Glow — still caused irritation. I also noticed that IPS panels made by LG cause me much more discomfort, while panels manufactured by AUO Corporation seem to be more comfortable. Have you heard similar or comparable reports? I really don’t see another alternative but to get an OLED monitor, even though it’s much more expensive, as good TN panels with good contrast and colors are not available today at affordable prices or with good availability in countries outside the United States or Europe.