Macbook Pro 16 Very Slow Performance with OLED TV 55

Discussion in 'Apple and Mac OS X' started by syngress, Dec 31, 2020.

  1. etern4l

    etern4l Notebook Virtuoso

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    I'm confused by this - I thought there is no backlight in OLED screens, at least my TV doesn't have one so there is no PWM issue.
     
  2. Aivxtla

    Aivxtla Notebook Evangelist

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    Pretty sure your TV likely uses PWM, most OLED panels usually need PWM to control brightness. For brightness OLED panels' pixels generally either turn on or off there's no in between because voltage changes between sub pixels required to maintain proper color representation/prevent color shift while dropping brightness, would be pretty complicated, I think such panels also exist but don't think they are common. In-between voltages are as far as I know used more to change color gradations with the frequency of on/off being the brightness method. With LCDs you can do either PWM, backlight power reduction or a combination with PWM at low brightness. I'm sure someone with more knowledge can add to this or correct my statements.
     
    Last edited: Jan 15, 2021
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  3. etern4l

    etern4l Notebook Virtuoso

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    According to RTings my TV doesn't use PWM and indeed I have not noticed any flicker (and would describe myself as slightly sensitive), but reading up a bit more, this seems more of an exception than a rule, and OLED PWM flicker is indeed a common complaint, especially on smaller devices such as phone screens.
     
  4. Raidriar

    Raidriar ლ(ಠ益ಠლ)

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  5. etern4l

    etern4l Notebook Virtuoso

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