For users who love big screens, this is the best time. In the past two years, the projection screen has been surging and there are more and more economical ways for home consumers to choose. Micro-projection, laser television, home theater projector's top three hegemony. If "money is not a problem," then starting with a 100-inch large-screen laser TV is the best choice; like the ease of use, you can only choose micro-casting. However, in fact, for most ordinary consumers, home theater projectors are the best choice for home screens. As a well-known brand, ViewSonic, has actively deployed home theater market in recent years, has launched a number of close-to-home 1080P home projectors. Recently, I got a new look at the ViewSonic PJD7831HDL, 1080P home projector. How is the performance? How is the picture quality? Please see below decomposition!
As a home projection, the eye edge is very important, I first take everyone to look at the appearance of ViewSonic PJD7831HDL, take a look at the new ViewSonic projection design, whether it is related to you.
In recent years, a classic projection product has almost no personality. The usual, low-profile appearance pays more attention to the performance of the product. ViewSonic PJD7831HDL has the same family design, the overall simplicity, with a white and gray, the fuselage above, positive white tone, side of the fuselage, back and machine bottom is divided into gray tone, and the two color distribution ratio is good, IKEA liveable .
ViewSonic PJD7831HDL uses left and right heat dissipation design, one side into the wind, one side of the wind. At the air inlet, a layer of filter layer is also attached, which can reduce the amount of dust and debris entering the inside of the machine, reduce the possibility of damage to the hardware, and prolong the service life. This detail design is very intimate and practical. Although the filter does not have the ability to purify air levels, it is enough to prove that big manufacturers control the details of the product.
A speaker is hidden next to the air inlet. 10W power, compared to professional audio equipment, not a level, but relatively common flat-panel TV's built-in audio, or good. Watching a TV show is more than enough. However, if you want to experience theater-level sound effects, it is still honest to purchase 5.1-channel sound!
In fact, the outlet and inlet on the other side are not symmetrical, but on the front corner. This asymmetrical design is not to pursue aesthetics but from a practical point of view. Diagonal air ducts are more conducive to internal heat dissipation and increase the speed of heat dissipation. When used for a long period of time, the machine will not malfunction due to overheating.
In fact, most families use the living room as a video room. Compared to cinemas and theaters, the area of ​​the living room will shrink a lot. Therefore, the projection ratio of the home theater projector to the lens will be much more demanding. Many home projectors use a 1.1x lens, which requires 3.3 meters to project a 100-inch screen. And ViewSonic PJD7831HDL with a new 1.3x zoom lens, only 2.5 meters can project 100-inch screen, so that the big screen is no longer subject to space limitations.
Like its peers, ViewSonic PJD7831HD has two adjustment loops above the lens, one for zooming the screen size and one for focusing to prevent blurring.
Let's take a look at the handling area of ​​ViewSonic PJD7831HDL. Trapezoidal design, taste of some designs. The physical buttons in the control zone are very rich, including power switches, arrow keys, confirmation keys, menu keys, input sources, and so on. However, some of them are not friendly. The entire interface does not have a Chinese logo. Although the logos of these buttons are relatively easy to understand, English is also very simple. However, there is no Chinese identity and it is not friendly to the people. Some users with low education levels may need a certain amount of learning costs.
ViewSonic PJD7831HDL back is the interface area. As a home projector compared to business projection, its interface is less, but there are not many types of home appliances interface. Equipped with a HDM interface, two VGA interfaces, a USB interface, and commonly used audio ports. Basically covered the needs of our daily external equipment, meet our daily home or no problem. ViewSonic PJD7831 HDL projector also has a miniUSB interface for connecting mouse expansion and upgrade software. However, the miniUSB interface is already outdated, and the corresponding interface settings are not easy to find, and some use is not very convenient.
For household appliances, beauty is important. The back of the general projection will always be full of a bunch of wire, very messy, very beautiful. ViewSonic PJD7831HDL is specially equipped with a cable box to store and hide the messy wires. Have to say that ViewSonic is very intimate.
Supporting peripheral plug-in extensions is a major feature of ViewSonic PJD7831HDL. There is an expansion box on the side of the projector where the wireless projection module can be added. Through it, we can use a mobile phone or tablet to screen to a 100-inch screen. Can you imagine what it feels like to play "The King's Glory" on a 100-inch big screen! Unfortunately, the wireless projection module is not standard and must be purchased separately.
Home projectors are generally mounted by lifting, so the operating panel is rarely used. We use the remote controller more. ViewSonic PJD7831HDL's remote control function is very comprehensive, and the key features also use a color logo, details of the design is in place. However, there is still the same problem, the entire English logo, not grounded gas. It is worth mentioning that the remote control also has the function of a laser pen, as well as a page turning function, which is very useful when playing a PPT presentation.
Choosing a projector, what we really care about is the projection effect. During the day and night, we have the need for watching movies. ViewSonic PJD7831HDL has a high lumen of 3,000. It has good performance in both dark and bright environments. Let's take a look. (Note: The test background is a white wall. Actual results are better than photos because of the level of shooting and the equipment.)
256 gray scale test
In the gray level test, ViewSonic PJD7831HDL performance is relatively outstanding, gray block distinction is obvious, 256 grayscale block only a small part of the upper left corner and the lower right corner is indistinguishable, and the rest are all clearly distinguishable. The transition from bright to dark is clearly distinguished. Such performance, specifically at the time of application, such as continuous switching between movie scenes and dark scenes, the black scene can still be clear and the details are obvious.
Grayscale color bar transition
In the grayscale transition test, ViewSonic PJD7831HDL also performed well, full color, sharpness and saturation are very good. The fusion transition of the grays between adjacent colors is relatively good, reaching a silky level. The overall color display effect is enough to meet the needs of general users and enthusiast users. For most users, it is also a color accurate machine.
Static scene depth testing mainly tests the projector's performance in terms of basic color, spatial perception, saturation, and gray scale. Due to shooting conditions, the actual effect is better than taking pictures. The following pictures are for reference only.
Original image
Real shot (adjustment size, trimming edge)
Comparison 1: People
Original image
Real shot (adjustment size, trimming edge)
Comparison 2: Lamp Street
Original image
Real shot (adjustment size, trimming edge)
Comparison 3: Lavender Fields
For most of the projections, the darkest details are the most difficult to express. So for the three static comparisons, I chose two sets of shadows. Through actual experience, the effect of the picture is under the projection of ViewSonic PJD7831HDL. Portraits, architecture, flowers, and color reproduction are in place. Especially the lavender in the flower field is bright and bright and looks very comfortable. And overall, the ViewSonic PJD7831HDL restores the real scene very well. With the help of the big screen, people can't help but feel like they are in a temporary situation. I like this feeling.
Movie experience
Large screens are most likely to be immersive, so home theater projections are best suited for watching movie trailers.
Screenshot
Real shot (adjustment size, trimming edge)
"The Earth's Heart Adventures 2. Mysterious Island"
Screenshot
Real shot (adjustment size, trimming edge)
Terminator 5: Genesis
As a big fan, I chose the classic "The Earth's Adventures 2. Mysterious Island" and "Terminator 5: Genesis" to experience. In order to allow everyone to compare photos by taking pictures, the message machine quality can be more accurately obtained. “Earth Core Adventures 2. Mysterious Island†focuses on big scenes, and there are not many dark colors. There are many dark scenes. The scenes of the “Terminator 5: Genesis†scenes with a large number of fighting scenes are bright and dark, and they are very large. For the projector, it is a big challenge. Through actual viewing, the picture projected by ViewSonic PJD7831 HDL has a strong sense of field, character color and color reproduction in place, the picture is very spiritual, and the scenes are very powerful. At the same time, in the contrast, the light and dark switching is fast and accurate, the contrast is strong, the dark part retains a lot of details, the layers are rich, and the effect is excellent.
Power test
Standby power consumption on the left and default power consumption on the right
Energy-saving, emission-reduction and green living are strongly advocated by the government and reduce our cost of living. The same is true of the projector's high and low power consumption. ViewSonic PJD7831HDL In standby mode, the power consumption of ViewSonic PJD7831HDL is 0.65W, and the power consumption is 260.10W after 10 minutes of stable operation. Standby in line with the national standard, the default power is only 260W. The energy-saving effect is still quite obvious. Adding 10,000 hours of life greatly saves the user's later use costs.
The noise of the projector is often easily overlooked by everyone, but it is very important. Unlike commercial projectors, the noise is louder and we also endure it. Home machine noise will directly affect our viewing experience. The noise control of the ViewSonic PJD7831HDL is very good. Although it is close to 57 decibels, but returned to our best viewing 2.4-3.0 meters, the noise is as low as 21 decibels, almost inaudible when watching a movie .
After a series of tests and experiences, ViewSonic PJD7831HDL is very good as a home projector. Its high definition, full color performance, high lumens, low noise are all my favorite, and there is also a highlight of the scalable wireless module that will give us more ways to use, such as mobile games.
advantage:
1, 1080P resolution;
2, 3000 lumens highlight, showing more details;
3, colorful technology, colorful, wide color gamut;
4, 1.3x zoom lens, only need 2.5 meters to project 100-inch screen;
5, support for wireless expansion;
6, 10,000 hours of service life.
Disadvantages:
1, no lens cover;
2. The remote controller and operation panel have no Chinese description and are not friendly;
3, miniUSB interface to connect the mouse expansion, narrow selection of accessories.
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