ViewSonic Pro 7827HD HD Projector Evaluation

In recent years, there is a lot of data showing that the sales of LCD TVs have been declining. As the saturation of the market has increased, LCD TVs have been lacking in innovation. It is difficult for new products to stimulate consumers’ desire to buy, and the impact of projectors on household use , LCD TV market will inevitably decline.

   

With everyone pursuing large-screen visual enjoyment, projectors have begun to attract more attention than LCD TVs. This is an age of big data. We can conduct analysis based on data platforms. For example, Baidu Index is based on Baidu's massive data on Internet users' behavior. The platform, through the search of Baidu Index, can understand how big a keyword is in Baidu's search, the trend of changes and changes in related news over a period of time, so today I searched for data about projectors and LCD TVs. , From the projector and LCD TV index comparison chart, we can clearly see that the overall trend of the same year than the projector over the LCD TV trend, the projector has become more and more favored by consumers!

   

The ViewSonic Pro7827HD was the ninth projector I bought. I bought several of my former friends and family, and the remaining seven were still in my home. The first time I bought a projector could not afford to buy a TV, but on the other hand I bought a LCD TV. If the landlord suddenly did not rent it to me, it would be very difficult to take it away. I bought a projector with a very cheap boomerang. Take a look. Later, the work was stable and I bought a popular micro projector. I could carry it around, and it was fun. I bought vez before and after , cool music, Haier Xiaoshuai, but I returned to my original intention, I still liked the feeling of watching a movie in a movie theater, so later I bought BenQ (BenQ) MS3081 (brother May Day when they were taken away), and recently bought another impulse Pro7827HD double RGB color wheel 1080P projector.

 

Unpacking

When the parcel was received, it was a big box with a thick plastic bag wrapped around it to prevent it from getting wet during transport.

Open the box in order to truly see the projector's packaging, the outer box is portable, the cover printed with their logo three birds, as well as some simple performance labels.

On the back you can see the real picture of the monitor. The black body is relatively simple. Most of the projectors in the market are black and there are not many color choices. Unlike smart phones on the market today, there are already many colors available for consumers to choose from.

Real Machine Display + Knowledge Popularity

  Next, I will show you that I started this machine, will also be combined with my show, talk about the projector should pay attention to the purchase of several aspects, but their own views, do not like not to spray Oh!

There is a layer of protective film on the machine, I think it is not very comfortable to watch, so I will tear the protective film directly!

This is the machine after tearing off the protective film. There is a row of buttons under the machine. It is the physical button of the projector. It adopts concave-convex design, the key part can be trapezoidal correction and 4- angle adjustment, and the menu key can be selected to move up and down and select it. Basic operation.

Keystone correction    At present, most projectors support the vertical trapezoidal correction function, that is, the projector can adjust its own height placement position. The resulting trapezoidal shape, the trapezoidal correction by the projector, can make the screen rectangular, thus facilitating the user's use. But there are also not all projectors that have this feature, you can consult with the seller before buying to have this basic function.

In this direction we can see the lens part of the projector. The recessed design can protect the light bulb. The power of this machine's light bulb is 240W and the lamp life can reach 8000 hours. There is a zoom above the projector lamp. And focusing knob, more convenient to use when adjusting the picture size and focus. In order to achieve the lens displacement and corner adjustment, the maximum displacement of 20% , to shift a larger distance, you still have to manually move the machine.

Lamp life   The projector lamp has time for use. Once the lamp is broken, even if the projector is good, it cannot be used. Changing a lamp is expensive. The projector lamp life on the market is not the same. If the lamp life is too short, after the projector is used for a period of time, the brightness of the projector will obviously drop, and the quality of the projected picture will also deteriorate. Not only the image becomes unclear, but also Color performance is also not as good as before. At this point the user needs to replace the lamp for the projector. So when choosing a projector, be sure to look at the lamp life of the projector.

    This direction is the exhaust outlet of the machine. The power consumption of the projector is relatively large. In use, it will generate a large amount of heat. The exhaust port is to provide heat for the machine, thereby protecting the machine and prolonging the service life of the machine.

ViewSonic this machine has an air filter outside the air outlet, this is detachable.

After dismantling, you can see there is a fan inside, the main cooling is to rely on this fan, when you use it can obviously feel the wind, the fan in the process of running a little sound, but very small, quiet environment can hear the fan The operating sound, but if you play the video, you can't hear the sound of the fan.

Demolition is like this, there is a layer above the foam dust filter, filter the dust in the air, do not underestimate the dust, if the dust into the projector system, or the lens inside, it will affect the operation of the system, the lens inside the dust It will affect the resolution of the projected image quality. In this regard, the attention to detail is very good. Therefore, when using the projector, do not dismantle the dust-proof net. When not in use, it can be cleaned regularly, dried and then installed.

heat radiation   The projector's heat dissipation is also very important, the machine's cooling effect is no way to consult the seller, ask him sure to say good, there is a way to use, if you buy in the physical store, open the machine when you feel the air outlet Wind, obviously feel the wind, look at the evaluation on the Internet to see how we say.

   We can see a lot in this direction machine interface, the interface dense, above all marked type, there are two HDMI ports, a USB interface, audio interface, and the required daily output interface. Rich interface can be connected to a variety of devices, such as computers, speaker connections are very convenient, you can play all kinds of media files, support HD 1080P source and audio. The side hidden HDMI/MHL connection slot is designed for plugging in a wireless HDMI wireless module or MHL connector with a protective cover that maintains a streamlined design.

Interface projector interface must be complete, the projector in daily life use, whether it is office or movie, we will connect a computer or mobile phone, which requires HDMI high-definition interface, USB interface, headphone jack must have, interface The degree of completeness will affect the degree of interconnection of projectors!

This is a cable management box. It can be installed at the interface. There are small screws. Just screw it on and it is very easy to install.

After installation, this is the case. You can protect the interface, and you can put the line inside, so that the desktop is very cluttered. In fact, this is not a big picture, because we generally rarely connect many devices at the same time, unless you want to fix the projector and connect many devices at once, but I still prefer to move it so that the bedroom and the living room can be used. You can also bring the company to the department staff for training purposes. It is not good to fix it, but some people will like to fix it to the wall.

This is an infinite module of this projector. First of all, it is necessary to download and install their APP on the mobile phone , and then install the infinite module in the middle to the projector, so that the mobile phone and the projector can be displayed on the same screen. With a usb cable, an HDMI cable.

The infinite module of the projector needs to open the protective cover of the infinite module from this place. The opening is a bit cumbersome. Because of a particularly small screw, my family found a few laps to find a thing to unscrew the screw, and there is no tool.

After the infinite module is tuned to MHL , it is plugged into the projection interface, and then turned on, there will be blue light. This proves that it is installed, you can open the APP on the phone, and the phone will be displayed on the same screen as the projector.

This is a projection effect picture after the mobile phone and the projector are connected indefinitely. The above is a video picture that is played online. The following is a picture showing the dolphin photographed, and the different display effects under the light and the light can be seen. The dolphins below are a bit old and old, and the real shots can be seen a little bit darker, but the projector displays bright, bright images. This is because the Pro7827HD projector uses DLP technology. Dual RGB color wheel, also equipped with the ViewSonic SuperColorTM technology, reached the Rec.709 standard, so greatly enhance the expression of color, ViewSonic's display is also very advantageous in the color display.

 

The same boot screen, different display effects during the day and night, you feel it. The lumen of this projector is 2200 lumens, so it can be used during the day!

Lumen lumens refers to the brightness of the projector. The greater the lumens, the higher the brightness of the projector. The higher the brightness, the better the effect of using the light, but the higher the lumen, the better, the too bright and the too dark the effect on the eyes. It is not good. We must choose the appropriate degree of lumens according to the circumstances of our use environment. For example, a business conference will be used more during the day, so you must choose a high-brightness, and business use of the lumen is best not less than 2000 .

On the left is a pico projector, Q6 as cool music . Now many people will tangled up with choosing a micro-projector, or choosing a business projector? This actually requires looking at what you are using, looking at your needs and purchasing power. Micro-projectors are generally small and portable, but generally have lower brightness. Business projectors have higher brightness and adaptability to the environment, but they are inconvenient to carry around.

This is the same video, the same wall, ViewSonic Pro7827HD and cool music as Q6 display contrast, obviously above the color, brightness is better than the following, in fact, this is a micro-projector and business projector is a major difference, business projection Instrument flow is higher.

  Let’s take a look at the contrast between the ViewSonic Pro7827HD and the CoolTV Q6 in the all-black environment. The comparison of the ViewSonic projection screen is because I performed the T- line correction. The cool music is my handheld shooting so the picture is not too positive. Do not look at this, take a look at the effect, under the dark effect, micro-projector is also able to meet the entertainment viewing requirements, but the effect is much worse than the business projector, the first resolution ViewSonic this is 1920x1080 , cool LeTV's model is 800 x 480 , plus the ViewSonic contrast ratio is 22000:1 , and Cool Music is 1000:1. This will inevitably lead to different performance effects. But also have to say that the price of a goods, business projector is certainly more expensive than micro projector.

The resolution resolution refers to the number of pixels the projector can display. The higher the resolution, the finer the picture, the more information that can be displayed in the same screen.   The effect of the screen projected by the projector is a combination of factors such as brightness, contrast, resolution, and imaging mode.

It may seem that many people have the impression that projectors are more used in educational offices. If you don't open a company, you won't use a projector because you don't teach. If you look at me, there's farts. It's not. Accompanied by technology. Development, projection equipment has also become increasingly popular. In daily life work and study, we all have more or less exposure to the projector, and soon, you may also consider starting with a projector you like. See Europe and the United States, experience the cinema experience at home. So much to know about the information and basic elements of the projector, it is very necessary for you to choose a reliable projector.

The main concern of the projector is resolution, lumens, contrast, lamp life, heat calculation effect, and imaging effect . These elements are marked with bold brackets in the article. Nothing can be seen only in the full text. Do a simple understanding!

 

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