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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?
  • Features of projectors
  • Types of projectors
  • 5 things to consider before buying 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. It can play the corresponding video signal through different interfaces with computer, VCD, DVD, BD, game machine, DV and so on. 



    Features of projectors


    1) small footprint:
    The closest display device to the projector should be the TV set. The size of a normal TV set is about 30 inches to 60 inches. If you go up 60 inches, the price is too high. We only talk about appliances that are acceptable to the public. A 60-inch widescreen TV has a screen size of about 1400 to 800,70, which takes a large living room to accommodate, but a projector should be about 130mm, 130mm, 130. So the space occupation is very advantageous. 


    2) good sound:
    With the rise of living conditions, families have high requirements for the quality of life, in addition to vision, hearing is also essential. Nowadays, TV sets are getting thinner and thinner, so the built-in stereos can only be said to be mediocre, but now many home projectors are equipped with luxury stereos.

    3) Mobile Portable:
    At present, many brand models of projectors on the market have built-in batteries, which can be used for 3 hours in the case of power outage, which is enough to watch a movie, and the weight is basically around 3KG, so it is very convenient to go out and play. Now many first-tier cities rent houses to live, and the projector not only meets the needs of cinema viewing, but also very convenient to move, so you don't have to worry about screen damage.


    When you got a projector:

    1) Office time varies from rigid to various forms:
    Traditional work and business communication is relatively rigid, people install a projector in the conference room, meetings, discussions and sharing need to be held in the conference room. In particular, carry micro-projector, office discussion report, reception room introduction, coffee shop exchange of views, tea restaurant review contract, hotel research plan, hotel sharing information, anytime, anywhere, easily. 



    2) Friends get together from language communication to visual sharing:
    In today's society, the gathering of young friends has become a part of the life of young people.  Young people's gatherings are no longer just about having a meal and singing karaoke in a monotonous way, but more willing to communicate with each other, share information, enliven the atmosphere and pursue taste.


    The projector has a large screen display function, so that friends' parties can share information on a large screen, whether at home, in a bar, in a restaurant, or in a clubhouse. Friends' tourist scenery, elegant photos, home life, baby interest, delicious tongue, welcome fashion, online anecdotes, street anecdotes, big screen display, active atmosphere, improve taste. 



    3) the family watches film and television projection instead of TV:
    Today's young people, the proportion of watching TV is getting lower and lower, because the cable TV resources are limited, sitting in the living room watching TV monotonous fatigue. The use of projectors eliminates the need to sit rigidly on the living room sofa for watching movies and televisions. Wall roof everywhere big screen, watching film and television in the living room, in the bedroom, in the toilet, in the kitchen, in the aisle, in the corridor, or lying, or lying, or sitting, or leaning, big screen watching film and television, at will, extremely chic.


    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. 


    5 things to consider before buying a projector


    1) Know how to use the projector. 
    Before choosing to buy a projector, users should be familiar with the use of the projector. When in use, the projector can be divided into the positive projection of the table, the positive projection of the ceiling, the back projection of the table, the back projection of the ceiling, the integrated box type of rear projection, and so on. Forward projection means that the projector is on the same side of the audience; the back projection is the method by which the projector and the audience are refracted by the back mirror at both ends of the screen if the space is small. If you need fixed installation and use, you can choose the ceiling mode, but you must pay attention to dust prevention and heat dissipation. 


    2) Brightness and contrast.
    Brightness is an important index to measure the performance of projector. Brightness is the intensity of the light output from the projector to the screen. High brightness can make the projector project image clear and bright, but the higher the brightness, the more expensive it is. The use of high-brightness projectors in a small environment is very dazzling, will make the eyes tired, long-term viewing will make the eyes red and swollen and even eye diseases and so on. 


    Therefore, according to the specific size of the living room, the brightness of the selected home projector is generally between 500 and 1000 lumens. Too high or too low is not suitable for use in dim lighting. 


    3) Choose the projector with appropriate resolution.
    Like digital cameras and digital cameras, the picture quality of projectors is evaluated on the basis of resolution.It should be noted that the higher the resolution, the more expensive the price. There is also a compatible resolution, which is one step higher than its physical resolution. Like DC and DV, the higher the resolution, the clearer the image of the projector and the higher the price. Although the effect of SVGA can meet the needs of families, in the long run, if economic conditions permit, it is best to buy a projector with a physical resolution of XGA standard, which shows a clearer and brighter effect. 


    4) Pay attention to the projection distance.
    For family users, the living area is very limited, and the distance between the installed projector and the screen is not too large, so for the narrow home environment, the projection distance has become one of the important conditions for selecting the projector. Users should compare the projection distance of different projectors under the same projection diagonal size, rather than the "shortest projection distance" on the specification table. 


    5) Consumables and after-sales service.
    For the projector, the light bulb is the only consumable material, and its life is directly related to the use cost of the projector, so be sure to ask the lamp life and replacement cost when buying. 


    The more commonly used projector light sources are UHE and UHP, the former is mainly used for mid-range projectors because of its low price, but its life is not as long as UHP, while the service life of UHP is more than 4000 hours, and the brightness attenuation is very small, but the price is also more expensive. 


    Therefore, in the selection, we should choose the appropriate projector according to the ability. The light bulbs used by different brands of projectors are generally not interchangeable, so when buying projectors, you should choose to buy projectors of well-known brands, so you can enjoy the after-sales service of merchants. At the same time, after the end of the purchase, you should sign an after-sales service contract with the merchant or get the warranty certificate in order to avoid the worry of using the projector.


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