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I can't wait for micro LED displays to become mainstream. IMHO OLED displays are analogous to Plasma displays back in the day: A new tech that enabled many new

I can't wait for micro LED displays to become mainstream. IMHO OLED displays are analogous to Plasma displays back in the day: A new tech that enabled many new form factors (Thinner TVs) but had many key drawbacks like power consumption and burn-in. The same is the case with OLED, which enables new form factors like foldable displays, but brings its own issues. I've been actively avoiding OLED displays for all my purchases due to its major current drawback: Burn-in. As beautiful as OLED displays may be with color and contrast, I have seen plenty of TV displays and phones with a permanently burned-in image of something that remained static for too long such as network logos, and status bars. My previous employer used beautiful 80" Samsung displays for their conference rooms, all of which were ruined in little over a year. This matters a lot to me because I use my TV for gaming, which involves static menus that will burn OLED displays if you're not careful. This is not something current LED displays are prone to, and I'm hoping micro LED displays work the same way.

baybal2 7y ago
> This is not something current LED displays are prone to, I will disappoint you. LED displays have burn ins too! And with pixel sizes approaching that of OLED, burn ins will start sooner, and be more visible. Samsung will not go for microled for consumer market until it gets "led on the backplane" going. That eliminates the transfer process, and most of cost associated with it. The unsolved issue is current transfer. If you grow LED in-situ, you have to somehow put power supply there too, and preferably do it in the same manufacturing process. If you have to transfer LEDs mechanically, it makes little cost difference to put LED driver ICs there mechanically too.
- ProfessorLayton 7y ago
  You're right that LED isn't immune from burn-in, however, it is much more resistant to it, and isn't necessarily permanent either. Leaving an LED display off for a few days, often less, can be enough to bring it back to normal. Another artifact OLED displays have is their PenTile subpixel arrangement to compensate for the red, blue, and green organic compounds degrading at different rates. Hopefully micro LED brings us OLED quality with LCD reliability.
  - baybal2 7y ago
    The smaller is the junction area, the more current goes through it. If you want to produce more photons with smaller area, you will inevitably run into that. Those LED displays you can get in retail are nowhere close in die size to what microled is. Those conventional 1080P led displays with <1mm pitch already demonstrate very visible burnins. There is one in a hotel nearby that is only 4 moths old, and I can already distinguish an imprint from the brand logo, they seem to have unknowingly ran it on maximum brightness though.
    - toast0 7y ago
      > Those LED displays you can get in retail Do you mean the LCD displays with LED backlights; that's what I've seen in retail, marketed as "LED TV"? Are you seeing burnin of the LEDs, or image retention on the LCD? LED burn in might look more like noticeably different white levels across the different local dimming areas, especially if it gets worse over time related to static brightness differences in the displayed image.
      - baybal2 7y ago
        I mean commercial small pitch LED panels made of modules, like ones used for outdoor advertising, but much smaller.
adrr 7y ago
Samsung doesn’t make OLED displays. They would be QLED which is LED with quantum dots on the backlights for a truer white and better colors. LG and Sony have OLEDS. There are also no 80” OLEDS on the market. I think 77” is the largest and they are extremely pricey. You also never seen them in conference rooms since they don’t do well in bright areas unlike high end LEDs that have higher lumens

baybal2 7y ago

> This is not something current LED displays are prone to, I will disappoint you. LED displays have burn ins too! And with pixel sizes approaching that of OLED, burn ins will start sooner, and be more visible. Samsung will not go for microled for consumer market until it gets "led on the backplane" going. That eliminates the transfer process, and most of cost associated with it. The unsolved issue is current transfer. If you grow LED in-situ, you have to somehow put power supply there too, and preferably do it in the same manufacturing process. If you have to transfer LEDs mechanically, it makes little cost difference to put LED driver ICs there mechanically too.

ProfessorLayton 7y ago
You're right that LED isn't immune from burn-in, however, it is much more resistant to it, and isn't necessarily permanent either. Leaving an LED display off for a few days, often less, can be enough to bring it back to normal. Another artifact OLED displays have is their PenTile subpixel arrangement to compensate for the red, blue, and green organic compounds degrading at different rates. Hopefully micro LED brings us OLED quality with LCD reliability.
- baybal2 7y ago
  The smaller is the junction area, the more current goes through it. If you want to produce more photons with smaller area, you will inevitably run into that. Those LED displays you can get in retail are nowhere close in die size to what microled is. Those conventional 1080P led displays with <1mm pitch already demonstrate very visible burnins. There is one in a hotel nearby that is only 4 moths old, and I can already distinguish an imprint from the brand logo, they seem to have unknowingly ran it on maximum brightness though.
  - toast0 7y ago
    > Those LED displays you can get in retail Do you mean the LCD displays with LED backlights; that's what I've seen in retail, marketed as "LED TV"? Are you seeing burnin of the LEDs, or image retention on the LCD? LED burn in might look more like noticeably different white levels across the different local dimming areas, especially if it gets worse over time related to static brightness differences in the displayed image.
    - baybal2 7y ago
      I mean commercial small pitch LED panels made of modules, like ones used for outdoor advertising, but much smaller.

adrr 7y ago

Samsung doesn’t make OLED displays. They would be QLED which is LED with quantum dots on the backlights for a truer white and better colors. LG and Sony have OLEDS. There are also no 80” OLEDS on the market. I think 77” is the largest and they are extremely pricey. You also never seen them in conference rooms since they don’t do well in bright areas unlike high end LEDs that have higher lumens