4 ms·

That's DLP and it's because DLP uses a color wheel at 3x the frame rate.

WalterBright 2y ago
I know. I was just pointing out that flicker doesn't affect me, for which I'm glad. I was a bit concerned before I bought it, due to the complaints about the flicker.
toast0 2y ago
Not only DLP. Some laser projectors use a color wheel to get the same effect; other laser projectors use multiple lasers, but pulse the colors individually and you get a similar effect; probably there are some laser projectors that do all colors simultaneously too, just as there are some DLP projectors with 3 DLP surfaces and prisms/etc to split and combine the light. My laser projector does the pulsing, I find it slightly less distracting than I remember color wheels being, but it's very similar; thankfully the family has gotten used to it; I only notice it on content that encourages a lot of fast eye movement.
- CarVac 2y ago
  Scanning displays like a laser projector or a CRT will flash any individual spot but the illumination is almost continuous, so people have less issues with them.
  - toast0 2y ago
    I'm talking about laser illuminated panel projectors used for viewing film or video content, not scanning lasers used for light shows. Scanning a laser beam is a lot more difficult than scanning an electron beam, so rasterised displays from a scanning laser are limited compared to CRTs.
    - CarVac 2y ago
      Ah, those are just wider-gamut conventional projectors.
globular-toast 2y ago
I believe the colour wheels now spin twice as fast which may reduce the effect somewhat. But for me it's not a very nice effect which is why I use a 3 chip projector. Unfortunately 3 chip DLP is prohibitively expensive (cinemas use them), but JVC DLA projectors are good. Although it looks like the newer 4K models are also prohibitively expensive :/
- 153957 2y ago
  I can not stand the DLP projectors, so I got an Epson 3LCD, and have no issues with it, not crazy expensive either.
  - globular-toast 2y ago
    LCDs have typically been considered inferior for home cinema usage. The only advantage of them is the price and that they have no colour wheel. DLA is a sort of middle ground that is technically an LCD but works more like DLP. None of this matters if your room isn't set up right or you're projecting in a not completely dark room, though.

I know. I was just pointing out that flicker doesn't affect me, for which I'm glad. I was a bit concerned before I bought it, due to the complaints about the flicker.

toast0 2y ago

Not only DLP. Some laser projectors use a color wheel to get the same effect; other laser projectors use multiple lasers, but pulse the colors individually and you get a similar effect; probably there are some laser projectors that do all colors simultaneously too, just as there are some DLP projectors with 3 DLP surfaces and prisms/etc to split and combine the light. My laser projector does the pulsing, I find it slightly less distracting than I remember color wheels being, but it's very similar; thankfully the family has gotten used to it; I only notice it on content that encourages a lot of fast eye movement.

CarVac 2y ago
Scanning displays like a laser projector or a CRT will flash any individual spot but the illumination is almost continuous, so people have less issues with them.
- toast0 2y ago
  I'm talking about laser illuminated panel projectors used for viewing film or video content, not scanning lasers used for light shows. Scanning a laser beam is a lot more difficult than scanning an electron beam, so rasterised displays from a scanning laser are limited compared to CRTs.
  - CarVac 2y ago
    Ah, those are just wider-gamut conventional projectors.

globular-toast 2y ago

I believe the colour wheels now spin twice as fast which may reduce the effect somewhat. But for me it's not a very nice effect which is why I use a 3 chip projector. Unfortunately 3 chip DLP is prohibitively expensive (cinemas use them), but JVC DLA projectors are good. Although it looks like the newer 4K models are also prohibitively expensive :/

153957 2y ago
I can not stand the DLP projectors, so I got an Epson 3LCD, and have no issues with it, not crazy expensive either.
- globular-toast 2y ago
  LCDs have typically been considered inferior for home cinema usage. The only advantage of them is the price and that they have no colour wheel. DLA is a sort of middle ground that is technically an LCD but works more like DLP. None of this matters if your room isn't set up right or you're projecting in a not completely dark room, though.