Hey folks, three requests:

1) could you report the window size used for testing? 2) could you provide either a 3d visualizer or a way to download the 3d file for the color volume tests? 3) Finally, could you consider integrating XCR scores on the testing methodology? (https://tftcentral.co.uk/articles/exploring-oled-brightness-improvements-woled-vs-qd-oled-and-the-need-for-new-metrics-and-specs#Using-XCR-to-compare-the-two-tested-displays)

Thanks!

May 21, 2024 02:58 AM By andre_ss6

31

Hey folks, three requests: 1) could you report the window size used for testing? 2) could you provide either a 3d visualizer or a way to download the 3d file for the color volume tests? 3) Finally, could you consider integrating XCR scores on the testing methodology? (https://tftcentral.co.uk/articles/exploring-oled-brightness-improvements-woled-vs-qd-oled-and-the-need-for-new-metrics-and-specs#Using-XCR-to-compare-the-two-tested-displays) Thanks!

Hi andre_ss6,

Thanks for reaching out with your questions! :) Answers below:

• Window size: currently, we don’t disclose this information. The reason we don’t do so is because we want to avoid the possibility of manufacturers optimizing for high marks in our test while not delivering the experience consistently across a broad range of real content.

• 3D visualizer or download of the 3D file for the color volume test: it’s not something we are currently planning to do, but it’s a good suggestion! I added it directly to the list that we review when planning our future test bench updates to review and prioritize it relative to other work in our pipeline.

• XCR scores: adding these is something we’re unlikely to do as they would favor a technology over others while neglecting some other important aspects of the display experience that can impact our perception of color (e.g., black levels, reflections, etc.).

Let me know what you think, and of course we’re all ears should you have suggestions for us!

Regards

May 22, 2024 03:42 PM By  Pascal Messiaen

Hi andre_ss6, Thanks for reaching out with your questions! :) Answers below:

• Window size: currently, we don’t disclose this information. The reason we don’t do so is because we want to avoid the possibility of manufacturers optimizing for high marks in our test while not delivering the experience consistently across a broad range of real content.
• 3D visualizer or download of the 3D file for the color volume test: it’s not something we are currently planning to do, but it’s a good suggestion! I added it directly to the list that we review when planning our future test bench updates to review and prioritize it relative to other work in our pipeline.
• XCR scores: adding these is something we’re unlikely to do as they would favor a technology over others while neglecting some other important aspects of the display experience that can impact our perception of color (e.g., black levels, reflections, etc.). Let me know what you think, and of course we’re all ears should you have suggestions for us! Regards

Thanks for your reply. About the XCR score, I think I haven’t expressed myself well😅 My suggestion is to integrate XCR specifically on the Color Volume test. Currently, RTINGS Color Volume results are difficult to interpret – eg LG G4 has a blue luminance of 49 nits, while the S95D has 88 nits, but what does that mean? Am I supposed to interpret that as meaning that I’ll perceive blues as twice as bright on the S95D compared to the G4? But then Yellow it’s 500 vs 1500. Does that mean Yellow will be perceived as three times as bright on the Samsung vs the LG? XCR exists to answer those questions. And then there is the question of the APL used – that is, what about different stimuli – is the difference the same for 100% red 10000 nits vs 100% red 200 nits on the two TVs? And, if not, how does the difference % change based on input stimulus?

The biggest difference between image quality on the top OLED competitors right now is, IMO, color accuracy. RTINGs could help us consumers better understand that aspect of these TVs by improving the Color Volume test.

Please note that integrating XCR does not require changing the test methodology – you already have all the data necessary for calculating XCR as-is.

Hope you consider this ☺️

Thanks!

May 25, 2024 03:40 AM By andre_ss6

31

Thanks for your reply. About the XCR score, I think I haven’t expressed myself well😅 My suggestion is to integrate XCR specifically on the Color Volume test. Currently, RTINGS Color Volume results are difficult to interpret – eg LG G4 has a blue luminance of 49 nits, while the S95D has 88 nits, but what does that mean? Am I supposed to interpret that as meaning that I’ll perceive blues as twice as bright on the S95D compared to the G4? But then Yellow it’s 500 vs 1500. Does that mean Yellow will be perceived as three times as bright on the Samsung vs the LG? XCR exists to answer those questions. And then there is the question of the APL used – that is, what about different stimuli – is the difference the same for 100% red 10000 nits vs 100% red 200 nits on the two TVs? And, if not, how does the difference % change based on input stimulus? The biggest difference between image quality on the top OLED competitors right now is, IMO, color accuracy. RTINGs could help us consumers better understand that aspect of these TVs by improving the Color Volume test. Please note that integrating XCR does not require changing the test methodology – you already have all the data necessary for calculating XCR as-is. Hope you consider this ☺️ Thanks!

Hi andre_ss6,

Thanks for providing additional details!

I understand what you mean, even saying that we perceive brightness logarithmically doesn’t really give too much insight on the perceptual difference between, say, a yellow @ 500 vs 900 nits. We’ll study how we can make our results easier to interpret when we get to improving our Color Volume test :)

Best regards

Could you consider having a color volume test for 4000 nits in addition to 10,000? While I understand the benefit of having something available for future proofing, it doesn’t seem too practical considering nearly all existing content isn’t mastered for it. To me, it seems equivalent to having a max speed test on a car, while living in a world where race tracks don’t exist.

Mar 27, 2025 06:34 PM By pittsportsfan

6

Could you consider having a color volume test for 4000 nits in addition to 10,000? While I understand the benefit of having something available for future proofing, it doesn’t seem too practical considering nearly all existing content isn’t mastered for it. To me, it seems equivalent to having a max speed test on a car, while living in a world where race tracks don’t exist.

Hi pittsportsfan,

Thanks for taking the time to reach out!

When we send the 10 000 cd/m² HDR signal to the TV, we are essentially asking it to give us the best color and luminance performance that it can provide. However, our scoring does take into account that TVs can’t reach these brightness levels.

We currently also include the 1 000 cd/m² color volume since a lot of HDR content is still limited to this luminance level. If we see a trend to content moving towards 4 000 cd/m² instead of the more common 1 000 cd/m², it’s likely that we will replace it in our reviews as well.

Don’t hesitate should you have any other suggestions or feedback for us.