What details should be paid attention to when purchasing LCD splicing screens

Method steps.

Choice of installation ground:

1. The installation ground of the LCD splicing screen should be flat, because the whole system of the LCD splicing screen is relatively large in terms of volume and weight. The ground you choose also needs to have a certain ability to bear the weight, and if the floor is tiled, it may not be able to bear its weight. Another point is that the installation of the ground should be able to be anti-static.

Precautions for wiring:

2. When installing the LCD splicing screen, pay attention to distinguishing the power cord from the signal cable when wiring, and install it in different places to avoid interference. In addition, according to the size of the screen and the installation position of the whole project, calculate the length and specifications of the various wires required, and calculate the needs of the whole project.

Ambient Light Requirements:

3. Although the brightness of the LCD splicing screen is very high, it is still limited after all, so the light around the environment where you choose to install it cannot be too strong, if it is too strong, you may not see the picture on the screen. If necessary, block the light that may be coming in near the screen (such as windows), and turn off the lights when the device is running to ensure the normal operation of the device. Don't install a light directly in front of the screen, just install a downlight.

Frame requirements: 4. In order to make the maintenance of the LCD splicing screen more convenient in the future, the frame edging must be detachable. The inner edge of the outer frame is about 25mm clearance on each side of the outer edge of the wall, and the margin should be appropriately increased according to the number of columns for large walls.

In addition, in order to enter the box maintenance in the later stage, the maintenance channel should not be less than wide in principle. The detachable edge strip should be pressed 3-5mm on the edge of the screen, and the detachable edge strip should be fixed after the cabinet and screen are fully installed in place.

Ventilation requirements: 5. In the maintenance channel, air conditioning or air outlet must be installed to ensure that the ventilation of the equipment is good. The location of the air outlet should be as far away as possible from the LCD splicing wall.

About 1m is better), and the wind from the air outlet cannot blow directly on the cabinet, so as not to damage the screen due to uneven heat and cold.

At the LCD splicing construction site, the installation and commissioning should be judged according to the phenomenon reflected by the fault, and the synchronization interface and transmission cable of the equipment should be checked, as well as the synchronization frequency range of the signal source and the display terminal. If there is ghosting in the image, check whether the transmission cable is too long or too thin, and the solution is to change the cable for testing, or add signal amplifiers and other equipment. If the focus is not ideal, you can adjust the display terminal.

In the face of the emergence of problems, we must first learn to analyze, in order to better solve the root cause of the problem, through strong analysis, we can shorten the inspection time. These methods are some methods and skills for debugging after installation, and the installer must be proficient and good, and only professional people can do professional things.

Preparations for videowall installation:

1.The upper and lower parts of the splicing wall should have no less than a meter of maintenance joints; Finger calling.

2.For installation, it is necessary to install an independent switch for easy closing at any time;

3.Equipped with independent power supply to avoid interference caused by voltage;

4.Hanging wall splicing wall, pay attention to the flatness of the wall and the stress capacity of the cherry state (such as solid wall, stressed wood wall, etc.; avoid gypsum board walls).

5.From the control end to the wall, at least one network cable should be laid in the early stage, and the signal line should be laid, and the signal line should be laid separately from the power line;

6.Maintain the ventilation and heat dissipation capacity of the wall, and if you need to add glass seal protection, you need to install an exhaust fan. Carry out heat rejection treatment.

Note parameter 1: input signal type. At present, the LCD splicing screen on the market generally supports a variety of formats of signal input and output, but there are also many inferior products that only support the signal input and output functions of Danyi, so you must see the type of input signal it supports before purchasing.

Note parameter 2: Supported resolution. The resolution of the LCD splicing screen is one of the very important parameters of its display effect.

The resolution determines the clarity of the display image, whether the picture is delicate and other characteristics, generally its resolution is very high, if the resolution is too low, do not buy, otherwise the display effect is not ideal. Note parameter 3: brightness.

Brightness is the brightness that determines the display brightness of the splicing screen product on the screen. If the brightness is too low, it can cause users to not be able to see what is on the screen when used in some high-light environments. The brightness should be higher, but you should also choose according to your own needs, if you use it indoors, you don't need too high brightness.

Note parameter four: contrast. The contrast of the LCD splicing screen feels the brightness of the color it displays and the effect of the color.

If the contrast is too low, it will lead to disadvantages such as not bright colors and not rich enough colors, so it is better to have a high contrast point. Pay attention to parameter four: splicing gaps.

Because the LCD splicing screen is composed of multiple splicing panels. Therefore, there will be a certain splicing gap between the panels. Of course, the smaller the splicing gap, the better.

If the stitching gap is too large, it will affect the visual effect. Of course, the smaller the splicing gap, the higher its market will be, so this should also be determined according to the economic pressure that you can withstand. The above four points are the parameters that users must pay attention to when buying LCD splicing screens. Beg.

First, the resolution of the LCD screen.

Resolution is one of the important parameters to measure the display effect of the display. The clarity of the LCD screen, whether the picture is delicate and other characteristics are determined by its resolution. At present, the resolution of LCD screens on the market is relatively high, and the common ones are:

1920*1080 and 1366*768, if the resolution is too low, do not choose.

Second, the contrast of the LCD screen.

The vividness of the colors displayed on the display screen and the effect of the displayed colors are determined by their contrast. At present, the common contrast ratio of TV LCD screens on the market is3000:1,And the best is that the contrast ratio reaches 4500:1。

3. The brightness of the LCD screen.

The brightness of the picture displayed by the LCD screen is determined by the brightness of the LCD splicing unit. If the brightness is not high enough, you will not be able to see what is displayed on the screen in bright light environments.

Fourth, the input signal type of the LCD screen.

If the LCD only supports the input and output functions of a single signal type, the use in many places will be limited, and the input and output that support multiple signal formats are more convenient to use, so this must be seen clearly.

Upstairs is talking about hardware things, this is a rigid thing, any one is the same, you can't do it yourself directly buy other manufacturers, these technical parameters are not the same!

The most critical factor in procurement is people, is the reputation of the manufacturer, how long has it been done, what projects have been done, and when can after-sales service be traced back to the earliest?

If you take these questions from me and ask them around, you will immediately come to the conclusion that most of the small manufacturers on the market have not been established for a long time, with no technical accumulation, no long history, and no perfect after-sales service. It's cheap.

Here, I would like to remind you that as a high-tech product, the splicing screen itself is very expensive, and the purchase of a large screen is not just about buying a screen, but also about long-term after-sales service.

Because of various problems in use, it is impossible to guarantee that the screen will not have any problems for a long time, such as after three or four years, the screen has a problem, what should you do? Of course, it's looking for a manufacturer!

If it is a small company, the general life cycle is 2-4 years, if it goes out of business, what do you do?

Therefore, you must find a company with a long history, trustworthy quality, and perfect after-sales service, such as color news technology, in order to really rest assured!

Hope it helps!