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As we all know, the brightness performance is the core of the projector. Whether it is 4K resolution or a wide color gamut, there is no support for brightness. The price of the 7999 yuan of ViewSonic PX727-4K projector broke through the bottom line of the industry, but also opened the road to 4K popularization, but the nominal brightness of 2200 lumens is still slightly less than the nominal brightness. And this time, ViewSonic upgraded the brightness of the product to 3,500 lumens, so that it can better meet the needs of the use of the family scene, but also provides users with a greater choice of space.
ViewSonic PX747-4K home projector uses TI's 4K display chip, the standard resolution of 3840 × 2160, can display a total of 8.3 million effective pixels, even on the Baihe large screen can also bring clear and sharp images to the user. In addition, this machine also has HDR technology, users can see more details of the shadows, viewing experience is even better.
The figure above is the objective test result of the ViewSonic PX747-4K home projector. A limited friend can use it to make a preliminary understanding of this product. However, if you want to understand an ultra-high-definition projection product, relying on several values ​​is not enough, especially the details of the screen and color performance you must savor, so I still recommend that you can see the entire evaluation.
The size of the ViewSonic PX747-4K projector is only 33.2cm × 26.1cm × 13.5cm, the whole model is small and exquisite, even in a small apartment, there is no problem at all. The body of the machine is white, it looks clean and elegant, can be well integrated with the user's home environment.
The back of the ViewSonic PX747-4K projector has a variety of interface modes such as HDMI interface, USB interface, and audio. Even if users connect multiple devices at the same time, there is no problem at all. In addition, there is a focus and zoom knob on the lens of the machine. Users can quickly adjust the picture through them, making daily use more convenient.
ViewSonic PX747-4K projector has a large exhaust vent area, which can quickly dissipate excess heat, and it can be used for a long time without any problems. The body is also designed with physical buttons for volume adjustment and trapezoidal correction. Even without a remote control user, it can perform simple operations and quickly adjust the appropriate screen.
Projector Data Testing We mainly use the ANSI standard developed by the American National Standards Association. This standard is also recognized as an authoritative standard in the industry. And consider the following aspects: maximum brightness, peak brightness, optimized brightness, and projector contrast color. Next, I will briefly explain a few technical terms for everyone: The first is the peak brightness, especially in the brightest mode, the highest brightness can be achieved at a single point, generally appear in the center point; maximum brightness, refers to the brightest mode The average brightness that can be achieved on the screen is higher than the reference value of this value; the optimized brightness, also known as ANSI brightness, is the average brightness of the 9 test points in the case where the projector can just distinguish eight gray scales.
Eight gray levels and 13 illumination test points
Two different contrast test methods
data analysis:
With regard to the brightness of the projector, there are three data in the table, namely the maximum brightness, the peak brightness, and the ANSI brightness. In simple terms, the maximum brightness is the average brightness of the screen in the brightest mode of the projector (brightness, contrast, and lamp mode are all adjusted to the maximum). From the actual test results, the maximum brightness of the ViewSonic PX747-4K projector is 2940 lumens, which is a nominal 84%.
Peak brightness refers to the maximum value that can be reached at a certain point on the screen in the brightest mode. In general, peak brightness is best if it can approach 95% of the nominal value or even exceeds the nominal value. The measured data shows that the peak brightness of the ViewSonic ViewSonic PX747-4K projector is 3505 lumens, which exceeds the nominal value. It can be seen that ViewSonic has no virtual standard brightness.
ANSI brightness refers to the ANSI test standard. As such, the ANSI brightness reference is more significant. From the actual test data, according to the ANSI test standard, the ANSI brightness of the ViewSonic PX747-4K projector has reached 1929 ANSI lumens, which can fully meet the user's daily viewing requirements.
Contrast:
In the contrast test, we brought you ANSI contrast, ANSI contrast close to our daily viewing experience, we used 16 black and white color blocks for testing.
The measured results show that the ANSI contrast ratio of the ViewSonic PX747-4K projector is 131:1, which has reached a good standard, and the projected screen colors are clearly structured and suitable for home viewing.
Color testing is a very important part of projector evaluation. In this link, we mainly understand the color reproduction capabilities of the machine through the differences between color test samples and real shot figures. The author then brings you the true color performance of the ViewSonic PX747-4K projector. Please join me to check it out.
The left is the real sample of the test sample right
The left is the real sample of the test sample right
The left is the real sample of the test sample right
Through the above groups of real shot maps we can see that the ViewSonic PX747-4K projector focuses clearly, the colors are structured, and the color style is rich. In the first picture, the warm-colored part has a higher degree of reduction; in the second figure, the skin color of the figure is also more delicate and glossy.
The left is the real sample of the test sample right
In the comparison of 4**, we can see that the overall color reproduction degree of the ViewSonic PX747-4K projector is good, there is no color drift, but the saturation of the green and yellow parts is slightly lacking, but this will not affect the user's daily view shadow. Overall, the color performance of the ViewSonic PX747-4K projector can satisfy users.
Everyone knows that the 4K resolution image is sharp and sharp, and that even the smallest detail can be seen at a glance, and the user will have a wonderful viewing experience. Next, the author will bring you some 4K picture real shot diagrams of the ViewSonic PX747-4K projector, allowing you to more in-depth understanding of the color performance of the machine while enjoying the 4K ultra-high-definition picture.
Dark details show high contrast in place
Strong sense of screen layering and rich colors
The saturation of the picture is high. The metallic color of the aircraft is well presented.
The left is the real sample of the test sample right
The left is the real sample of the test sample right
The left is the real sample of the test sample right
From the above real shots, we can see that the ViewSonic PX747-4K projector focuses precisely, and the 4K resolution projection image is sharp and sharp, with high color saturation and accurate detailing. Overall, the ViewSonic PX747-4K projector can give users a high-quality viewing experience.
After a period of intense and busy testing, the ViewSonic PX747-4K projector left a deep impression on the author. First of all, although this product has a high brightness performance and 4K ultra-high resolution, but its size is indeed very small. Putting in a home environment does not take up too much space, and it is also very convenient to move around everyday.
The next thing to say is the brightness of this product. Although the price of many 4K home projectors has fallen below 10,000 yuan, the overall brightness performance of these products is still somewhat lacking, and it is difficult to project large screens in bright environments. The measured ANSI brightness of the ViewSonic PX747-4K projector has reached 1929 ANSI lumens, and this brightness performance can easily project a clear and sharp 100-inch screen even in a bright living room.
The last thing to say is the picture quality of the ViewSonic PX747-4K projector. Through the real shot map we can see that this product projected a higher color reproduction of the screen, the color style is also very lovable, can provide users with better color enjoyment. After work, the author also used this product to read a 4K video, ultra-high definition resolution with a hundred screen, this immersive experience is indeed a traditional TV can not be compared. Taken together, if you want a more high-quality viewing experience, then the ViewSonic PX747-4K projector must be your wise choice.
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4.2mm Wire To Board Connectors
4.2mm Wire To Board Connectors are avialable in different terminations and sizes intended for use on a variety of applications. These connectors provide power and signal with different body styles, termination options, and centerlines. To find the wire to board set required, click on the appropriate sub section below.
4.2 mm pitch connectors wire to board connectors
Fully isolated terminals, positive locking housings, low-engagement forces and polarized housings, also offers blind mating, TPA and higher current options. Pitch 4.20mm
4.2 mm pitch connectors wire to board connectors Including:
male housing
Male housing of connector, UL94V-0 and UL94V-2, hanging and panel mount, single row and dual row, 2 to 24 circuits.
Female housing
Female housing of connector, with locking latch in order to avoid loosing, and with polarity in order to avoid dis-mating. One row and dual rows, from 2 circuits to 24 circuits.
Terminal
The conductor of connector, brass or phosphor bronze, tin plated over nickel, selective gold plated as customer's requirement.
Header
Header, right angle and vertical , with peg and without peg, DIP soldering, single row and dual row, 2 to 24 circuits.
4.2 mm connectors wire to board connectors General Specification:
Current rating: 6A AC, DC.(AWG#18)
Voltage Rating: 600V AC,DC
Withstanding Voltage: 1500V AC/minute.
Insulation resistance: 1000MΩ min
Contact resistance: Initial Value/ 10mΩ max
Temperature rise: -40'C ~ 105'C.
Circuit Board Connectors,4.2Mm Wire To Board Connectors,4.2Mm Pcb Wire To Board Connector,4.2Mm Pin Wire To Board Connector,.165" Wire To Board Connectors,4.2mm Power Connector
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