Black Projector Screen Vs White

Picture of Black Projector Screen Vs White

andyuk said: ↑ How would a Black Diamond 2 1.4 gain screen compare against a Di-Lite High Power 2.8 gain screen? Click to expand... That's an ambiguous question. There are all sorts of variables in terms of room situations and projectors in which one screen might work better than the other.The HP screen is higher in gain and "properly" set up would reflect a significantly brighter image than the same size 1.

4 gain BD screen. (Note that taking the whole screen image, the BD screen is likely to be even lower than 1.4 gain due to hot-spotting characteristics of the gain coating).The High Power (HP) is retroreflective so it tends to reflect light back to the light source. In other words, if you have your projector mounted up high on the ceiling the HP screen will be reflecting most light back up in the direction toward the projector, not the viewer, and from the viewer's seated position the image the image will appear dimmer.

Whereas the BD screen is angular reflective (reflects on an angle) so a ceiling mounted projector's light would be (if you get your angles right) reflected toward the viewer's seated position and hence you'd get a bright image. Therefore it's possible that even though the HP is higher gain, if you have a high ceiling mounted projector the apparent gain would be reduced from the viewer's position (on a chair/sofa) so the HP would appear even dimmer than the BD screen.

(But stand up and the HP screen would suddenly look brighter than the BD screen).If you are able to place your projector low, close to the height of the viewer's head, The High Power would produce a significantly brighter image. It also has a very evenly lit image, even off-angle, whereas the BD screen hot-spots pretty severely (from a center seat the center of the screen will be brighter, dimming toward the edges.

From an off-axis side seat the side of the screen further from the viewer will appear to go dimmer).The HP also has much less visible screen texture - the BD screen has a coating that can give it a speckly/grainy texture over images, especially noticeable in brighter images - whereas the HP screen is known for a very clean, pure image.Given both are designed to "steer" light toward the viewer and not to the periphery of the screen, each will be quite good at helping minimise the effects of room reflections.

And of course there's screen size. If you want a really big screen and love a bright image, that may point toward the higher gain of the two screens (HP). But if you love deeper black levels (and don't have a projector with an adjustable iris) and aren't going for a huge screen, then the BD screen may give you more satisfying deep blacks.So you have to know what you are trying to achieve, what you like best, understand the challenges your room may provide to achieving your goal, and then you can evaluate which screen - HP or BD - is most likely to get what you want.

See Also: 6s Plus Screen Size

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Evan Powell, March 12, 2003 Projection screens cost money. So every day we get emails asking, "Can't I just use a plain white wall and save the screen expense?" The answer is simple: Absolutely you can! And you can save money by putting regular gas in your Porsche also. It will run, you just won't get the best performance out of it. Projection screens have optical coatings that enhance their reflective properties.

White walls don't. You can certainly use a wall if you want to, and you will get a watchable image. However, compared to the image you'd get with a screen, highlights will not be as brilliant, contrast and color saturation will be reduced, and (depending largely on the texture of the wall) sharpness will be reduced as well. You will end up with an image that is not as good as your projector is capable of delivering.

Furthermore, one very important but often ignored benefit of a screen is not actually the screen, but the frame. A solid black frame around a video image substantially boosts the visual quality of the image itself. So unless you paint a black rectangle on your wall, by foregoing the screen you will lose this vital component in the overall visual experience. Now, for those starting out with their first entry level home theater projector, a white wall is much better than nothing.

Just make sure it is white. Don't paint it gray thinking you will replicate a Stewart Firehawk. You won't. The essential magic of the Firehawk is in its optical coating, not just the simple fact that it is gray. So if you paint your wall gray you will get an even duller image than you would by leaving it white--paint your wall black and you will get no image at all. Think about this for a moment..

.you will probably upgrade projectors every few years, as you will DVD players, audio components, etc. But high quality projection screens will last a lifetime. So we'd suggest you think of it in terms of a lifetime investment. That means study your options, plan for it in your budget, then make the investment once and be done with it. If you are serious about good image quality, you will always be glad you did.

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Wilma Lawrence

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