2017年10月18日星期三

Follow these 10 rules then you know how to pick the right home projector (part2)


Sixth: Lumen
A lumen is a unit that describes the brightness.
Lumens 500: probably only in the completely dark state to watch.
Lumens in the range of 1000-2000: cover by the curtains during the day, no light to watch.
Lumens above 3000: it is basically bright enough.
In fact, under low light, the projector 800 lumens has been able to meet the needs. Therefore, in the selection of the projector, the choice of lumens in the 800-2000 range is enough for basic use.

mini portable projector

Seventh: Contrast
Contrast determines the number of colors that the screen can recognize, and is the key to seeing more detail on the screen. Usually, when the resolution reaches 1080p, the contrast has a greater impact than the resolution. So, when you buy a projector, you should choose the product with the highest possible contrast within your budget.

Eighth: Noise
The noise is very easy to overlook. So, when buying a projector, try to be in a relatively quiet environment to listen carefully. In general, products with a noise of 40 dB or less are acceptable.

Ninth: Understand the interface type
1. Color difference terminal: The color difference terminal is the most commonly used high-quality signal terminal
2. S terminal and AV terminal (composite terminal): S terminal transmission is different from AV terminal, it will be the brightness and chrominance signal separation, get better image quality.
3. DVI interface: DVI interface is designed for high bandwidth, all-digital signal design interface, will become the HDTV set-top box standard interface. There will be more and more projectors with a DVI interface in the future.
4. HDMI interface: HDMI interface is a high-speed digital interface, you can simultaneously transmit video, multi-channel audio, and HDCP copyright information. For example, we have HDMI to Thunderbolt or computer adapter. What’s more, if you want to connect your iPhone to your projector, you can use the iPhone HDMI adapter.
In conclusion, the HDMI type is still the most popular interface type and most convenient to use.

mini portable projector

Tenth: Portability
Live demonstration with the projector more and more popular, obviously, the smaller the volume, the lighter the weight of the projector, the better portability. So if you need to take your projector with you sometimes, it’s recommended to purchase a mini portable projector, although looks small, still has the high-quality picture.




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