Question OLED Light at 100 = Safe?

Discussion in 'OLED TVs Forum' started by TheNumberP, Aug 12, 2018.

  1. TheNumberP

    TheNumberP
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    Hello everyone,

    I am just wondering if leaving the OLED light setting on 100 is safe for the TV.
    In other words, will it degrade the lifespan of the TV and screen?

    Thank you
     
  2. fat jez

    fat jez
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    Only HDR10 should need the OLED light at 100 (Dolby Vision uses 50).

    On regular use (SD/hd), yes you will shorten the life of the panel. I have mine at 30 for evening viewing and between 50 and 60 if it's a bright day.
     
  3. doug56hl

    doug56hl
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    What about if your regular use is HDR10...
     
  4. wxman2003

    wxman2003
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    It won't hurt your tv at all. I watch my E6 in the daytime with the default bright room setting of 100 OLED light and contrast 85. At night OLED is lower. Have done that for 2 years now, and no issues whatsoever. As far as shortening lifespan, 3 years ago when the EF9500 came out, an LG official said that using vivid mode, 100/100 OLED light/contrast, 8 hours a day, would shorten half life from 20 years to about 14 years. The newer tv's have even longer half life. So don't worry about OLED at 100, unless you watch one channel all the time with bright logo's. You might suffer burn in.
     
  5. Paul D

    Paul D
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    Yes it will shorten the usable life of the screen. It will also increase the chance of screenburn if any static images are left on screen.
    I don't baby my screens with low settings and have had no problems.
    But as mentioned above, use 100 if you want. Just be careful with static images and constant use letter-boxed films etc.
     
  6. iwb100

    iwb100
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    The important thing is not what OLED light is set to but Average picture level brightness. So if you have a high OLED light in SDR you are say outputting 0-~250-320 nits constantly (in most content at the top end of this scale mainly)

    HDR by its nature introduces a range so you are outputting up to whatever nits your TV can but in a range from 0-whatever nits your TV can produce.

    This might in many cases mean that even with 100 OLED light your average nit output is lower in HDR than SDR. You have to have your OLED light about 50 in SDR to equalise the HDR APL. If you have it higher for SDR then that APL is higher.

    In short, HDR is in most cases likely to be less of an issue than SDR content for pixel ageing.

    Also remember that high OLED light is one factor. But gamma settings, contrast and brightness all contribute to APL. So using low gamma and medium OLED light is worse than using say high gamma and high OLED light.
     
  7. wxman2003

    wxman2003
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    I have an OPPO 203 and I force it to convert HDR10 to DV. It looks much better. Plus DV bright room which by default has OLED light at 50 and contrast at 100, looks just as bright as SDR dark room which on my E6 the default OLED light is set to 80.
     
  8. iwb100

    iwb100
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    That makes absolutely no difference. The APL in DV vs HDR10 should be roughly the same. Your risk of BI is exactly the same. It may even be higher in DV given as a standard it may be slightly brighter on average.

    The OLED light setting in DV operates differently to other modes. It changes the overall scene brightness. So the overall "backlight" setting is fixed.
     
  9. wxman2003

    wxman2003
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    I didn't say it made a difference in BI risk. All I said is DV bright room looks a bright as SDR dark room with OLED light at 80.
     
  10. Dyslexic

    Dyslexic
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    That last paragraph is interesting it's something I've not thought about. 90% of my viewing is in the evening with Oled Light at 40, Gamma 2.4. The few times I watch during the day I have it set to 60 Oled light and gamma at 2.2, prefer the look of 2.4 but would need Oled light around 75 and dont want to risk the panel.
     
  11. Anton2015

    Anton2015
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    Appreciate people are spending a lot of money on their TV’s but a lot of this worry about screen burn could be unnecessary in my opinion.

    Naturally if your playing the same game for hours on end or watching the same channel for the same there could be a little cause for concern running the Oled on 100.

    But for regular viewing when you’re watching a variety of material, running the Oled at 100 is absolutely fine from my experience.

    In fact Vincent Teoh calibrated my LG g7 and set my day mode to 100.

    Looks fantastic and have had zero problems doing so. - (night mode at 65)

    Ps. This is nothing to do with the whole DV vs HdR10 vs forcing this or that. Just a simple response to the original post lol
     
  12. lgans316

    lgans316
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    I set OLED light and contrast at 100 and noticed, brownish grayish black bars whilat watching some dark scenes in Batman V Supernan. For now, I am happy with running my brand new OLED at 50-60% of max light and contrast with brightness at 0.

    Due to the odd sized room, I am watching my 65C8 from a distance of 7.5 ft.
     
  13. raymondo77

    raymondo77
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    For HDR content you should leave the OLED Light and Contrast at their default settings (100/100 for HDR10, 50/100 for Dolby Vision) otherwise you'll mess up the tone mapping and compress the dynamic range. For SDR do what you like.


    If you're seeing grey bars though then you may have Brightness set too high. That sets the black floor. The default of 50 is usually right but it can vary from panel to panel.
     
  14. Anton2015

    Anton2015
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    For HDR many of us found that 49 brightness works best. Although that relates to the 7 range.

    I sit around 7ft away from a 77” G7 and it’s spot on with 49 brightness.

    May be worth a try.

    As raynondo says you would be killing that picture if you’re setting the Oled light to only 50 for hdr ( but you may be referring to SDR )
     
  15. lgans316

    lgans316
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    I know what you guys mean but please understand that I come from a 50" Plasma which I had never run beyond 70% contrast and my OLED was unboxed just 6 days ago. So I am still getting used to it. Meanwhile I will try dropping the brightness to 48 or 49 and check my Gamma which I think was set at 1.9. Maybe that's why the black bars didn't look inky black. I will post some timecodes so that you can check it in your TVs and feedback on how it looks ln yours.

    I checked the scene with the lights flashing on Bruce Wayne and if if looks quite bright and detailed to me.
     
  16. fat jez

    fat jez
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    I have my brightness set to 51 and my contract at 80. My OLED light is at 30 for dark room and 50-60 for bright room. I used Steve Wither's recommended settings.
     
  17. Jase

    Jase
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    Gamma at 1.9 will looked washed out. Ideally you want 2.2 (Day) or 2.4 (Night).

    I also had a 50 inch plasma and whilst HDR and it's highlights are indeed bright you soon get used to it. For SDR in a dark room (and I mean completely dark) it's more a case of setting the Oled Light to an acceptable level. Mine's an E7 but using the Isf Expert Dark Room setting I have the following (which were calibrated).

    Oled Light - 30
    Contrast - 84
    Brightness - 51
    H&V Sharpness - 0
    Colour - 50
    Tint - 0
    Gamma - 2.4
    White Balance - Warm2

    For comparison the Isf Expert Bright Room is the following:-

    Oled Light - 60
    Contrast - 82
    Brightness - 50
    H&V Sharpness - 0
    Colour - 50
    Tint - 0
    Gamma - 2.2
    White Balance - Warm2
     
    Last edited: Aug 25, 2018
  18. Anton2015

    Anton2015
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    Don’t go to 48 - it crushes black too much.

    Also remember it’s different for HDR.

    So 50 it’s spot on for brightness when I’m watching SDR

    But HDR needs 49. It still crushes a little but the blacks are only solid.

    Don’t use test patterns. use real life material.

    Other than HDR which does need the Oled light at 100. It’s just down to personal preference.

    Oleds are already lower in nits than LED and plasmas etc. I personally couldn’t imagine using such a low Oled light as 30 - to be it just suffocates the picture. But then I do like it brighter.

    Just play around to see what you prefer. Clearly there’s no standard as mine has been calibrated to 65 yet the other poster was calibrated to just 30.

    So go with what you like :)
     
  19. lgans316

    lgans316
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    Thanks guys .How about Trumotion? I am still.not 100% convinced with the motion on my C8 although it is looks better in some aspects against my Plasma.
     
  20. Jase

    Jase
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    I leave it Off but it's worth experimenting with the Custom setting to see what you think.
     
  21. fat jez

    fat jez
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    I tend to turn it on for anything with fast pans and off otherwise.
     
  22. Anton2015

    Anton2015
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    This is again something there’s not ight and wrong.

    You can have 100 people tell you they watch it one way and it may seem awful to you.

    For me I set it to user, judder 5 and de-blur 10

    But I am really sensitive to juddering on every TV so I always turn on theses features as it genuinely does massively improve it enough that I don’t notice it.
     

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