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Buying Guide Projectors Buying Guide

Projectors Buying Guide


How can I enjoy the cinema-like immersion experience at home? The method is very simple, you just need to prepare a high-quality projector! So how to choose the right projector? You will find the answer in this guide!


Topics in this buying guide:
  • What is a projector?
  • How does a projector get its input?
  • Types of projectors
  • How to choose a projector?

  • What is a projector?


    A projector is an output device that can take images generated by a computer or Blu-ray player and reproduce them by projection onto a screen, wall, or another surface. In most cases, the surface projected onto is large, flat, and lightly colored. For example, you could use a projector to show a presentation on a large screen so that everyone in the room can see it. Projectors can produce either still (slides) or moving images (videos).


    How does a projector get its input?


    Most projectors use either an HDMI cable or VGA cable from a computer as their input source.


    Types of projectors


    There are two common types of projectors: DLP (digital light processing), and LCD (liquid crystal display). In the early days of projectors, CRT (cathode ray tube) projectors were commonly used. They utilized three tubes, one for each of the primary colors. Due to their large size, low light output and the frequent need to converge and align the images projected from each of the three tubes, they are no longer commonly used.

    LCD projectors
    LCD projectors work by utilizing polarized mirrors that pass and reflect only certain colors of light. This causes each channel of red, green and blue to be separated and later re-converged via a prism after passing through an LCD panel that controls the intensity and saturation of each color.

    DLP projectors
    DLP projectors can be classified as one-chip or three-chip. Each chip houses millions of mirrors that reflect light thousands of times each second. One-chip DLP projectors can produce more than 16 million colors while three-chip models can produce more than 35 trillion colors. This allows DLP projectors to reproduce more natural and lifelike images. The closeness of each mirror within a chip makes it difficult to see any spaces separating the pixels and in turn creates a more fluid and crisp image compared to LCD technology. 


    How to choose a projector?


    Lumen.
    Can be understood as brightness, the higher the lumen, the more can be used in the case of strong light during the day, the low lumen can not be seen during the day. In theory, the higher the lumen, the better, but generally the higher the more expensive. Generally speaking, the curtains are drawn when watching movies, and only when the atmosphere at home is rubbed in the dark can you feel it, right? so the household does not need to be too high, even in the range of 1000, 000 and 3000.

    Lumens have two standards: ANSI and IOS. Just look at the ANSI standard. The above 1000Mu3000 is this standard. If you see a merchant marked as IOS standard on the Internet, it will only be equal to the ANSI standard value by 6 times.

    Contrast ratio.
    Contrast refers to the sharpness of the image, the higher the contrast, the better, and certainly the higher the more expensive.

    Resolution.
    The higher the resolution, the better, and the higher the resolution, the clearer it is. In general, 1920x1080 is enough for household use, that is, the 1080p HD video standard.


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