Tag Archive for: Indoor LED Display

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Stage background LED display market promotes the improvement of residents’ cultural life

As the Chinese government pays more attention to the cultural life of residents and increases investment, thousands of local stage theater troupes in China are also closely following the development. As the citizens’ requirements for cultural life continue to increase, the stage design of theater troupes is in urgent need of improvement, with a full-color stage background. The LED display screen will be the best choice in the stage beauty industry. The full-color LED display screen can play background text, background material pictures, background video, live broadcast, TV program signals, etc. at will.

Creuview has launched a mobile full-color LED display suitable for the performance needs of theatrical troupes. Compared with the previous commercial rental LED display, it is specially designed to be subdivided and more suitable for the performance needs of various theater troupes. It has high stability and clearer pictures. Light weight, movable and more convenient to install, easy to operate, simple to maintain, low cost and good quality. According to the area size and display requirements, you can choose P1.25/P1.56/P1.875/P2/P2.5 /P3/P4/P5/P6/P7.62 full-color LED display models, a wider range of options, and a variety of budgets can be met.

Creuview, a professional full-color LED display manufacturer, will continue to improve its products. Welcome customers at home and abroad to put forward their valuable opinions. We insist on quality for survival and service for development.

What are the precautions for the daily maintenance of outdoor full-color LED screens?

Outdoor LED display has the advantages of good stability, low power consumption, and wide radiation range. It is the most suitable product for outdoor information dissemination. However, in the long-term use process, outdoor full-color LED displays will inevitably cause various failures due to factors such as pollution, looseness, vibration, heat, and environmental temperature changes, which will affect the normal use of the LED display, and even cause serious accidents. Therefore, regular maintenance is essential for outdoor full-color LED displays. So what does the daily maintenance of outdoor full-color LED display mainly do?

1. Daily inspection
“Daily inspection” is to conduct daily inspections and inspections of related display equipment, and to find hidden dangers to deal with them safely as soon as possible. Generally include the following four aspects:
(1) Reinforcement inspection of internal components and steel frame structure: In the case of natural disasters such as weather deterioration, it is necessary to check the stability and safety of each component of the screen body, especially the various parts of the steel structure, if any The problem should be dealt with in a timely manner.

In addition, the full-color LED display is a high-power-consuming device. After a long period of operation, due to multiple start-stops and operations, the wiring terminals of the power supply part will become loose due to cold and heat, and the contact will be weak, forming a virtual connection. It will heat up and even ignite the plastic components next to it. The signal wiring terminals will also become loose due to changes in the ambient temperature, and moisture erosion will lead to poor contact, which will lead to equipment failure. Therefore, the LED display connector must be tightened regularly. When adjusting the fasteners, the force should be even and appropriate to ensure firmness and effectiveness.

(2) Inspection of lightning protection facilities: Regular inspections of lightning rods and grounding lines. The facilities should be tested after thunderstorms, and if damaged, they must be replaced in time.

(3) Inspection of the control system of the LED large screen: Regularly check the reliability of the system to ensure its normal operation; all circuits and equipment of the large screen should also be checked regularly to avoid accidents.

(4) Inspection of the power supply system of the screen body: First, check whether the line connection in the distribution box is rusty or loose. For safety, the grounding of the electric box must be normal, and the power supply line must be checked regularly to avoid line damage.

Second, the display screen is clean
After the led full-color screen works for a period of time, the visual effect of the display will be affected due to the influence of the external environment. At this time, we can visually inspect and inspect the outdoor full-color LED display in both the bright screen and the black screen state. Including: Whether the surface of the display screen is contaminated, the purpose is to remove the influence of surface dirt on the luminous characteristics; whether there are damage cracks on the surface of the display screen; whether the communication and distribution cable lines are normal; for the equipment with high protection level, although the high reliability is selected Components and connectors, but the airtightness becomes a key factor. Therefore, it is necessary to regularly check the integrity of the seal; for the outdoor screen steel structure, check the surface paint and rust; for the outdoor screen surface pollution is particularly serious, but also Clean the display surface.

Full-color LED display cleaning is a high-altitude operation and requires a professional cleaning team. The cleaning operation adopts high-altitude sling method (commonly known as spider man) or adopts hanging blue, equipped with professional cleaning equipment. The cleaning staff chooses different cleaning agents according to different dirt on the screen for targeted cleaning, so as to ensure that the led tube is not damaged Complete the cleaning of the LED display screen under the premise of the mask and face mask.

Two points need to be paid attention to during cleaning preparation:
1. Before cleaning, disconnect the power cord.
Second, the choice of cleaning fluid, cleaning fluid generally includes electrolyte, high-purity distilled water, antistatic fluid, etc., to choose good quality, in order to effectively clean the dust and other stains on the full-color LED screen.

Cleaning and maintenance are divided into three steps:
The first step: vacuuming. First suck and sweep away the dirt and dust on the surface of the display mask.
The second step: wet washing. Be careful not to spray the lotion directly on the screen, but spray a little cleaning liquid on the cleaning cloth, and then gently wipe in the same direction. You can also use the soft brush on the vacuum cleaner to scrub the lamp mask to clean the dirt.
The third step: drying. Use a vacuum cleaner to absorb the water marks left after wet washing to ensure that the display mask is clean and dust-free.

What is the viewing angle of a full-color LED display?

We know that televisions, computer screens and LCD screens all have viewing angles, and this statement also exists in the field of LED screens. What is the viewing angle of a full-color LED display? What factors does the viewing angle have to do with? With this question, let’s learn together:

1.Definition of viewing angle of full-color LED display

The viewing angle of a full-color LED display refers to the angle at which users can clearly observe all content on the screen from different directions. The viewing angle can also be understood as the maximum or minimum angle at which the screen can be seen clearly. And the viewing angle is a reference value. The viewing angle of the LED full-color display includes two indicators, horizontal and vertical.

For example, usually full-color LED display, the technical parameters have this description: Viewing angle: 140°/140°; refers to the maximum viewing angle of 140°, the maximum horizontal and vertical viewing angle is 140°, after more than 140 degrees , The viewing effect is poor or there are blind spots.

The horizontal viewing angle is based on the vertical normal of the full-color LED display (ie the vertical imaginary line in the middle of the LED display), and it can still be seen normally at a certain angle to the left or right of the normal. For displaying images, this angle range is the horizontal viewing angle of the LED full-color display; similarly, if the horizontal normal is taken as the standard, the vertical viewing angle is called the vertical viewing angle. Generally speaking, the viewing angle is based on the contrast change as a reference standard. When the viewing angle increases, the contrast of the displayed image seen at this position will decrease, and when the angle increases to a certain extent, the contrast decreases to 10:1, this angle is the maximum viewing angle of the full-color LED display.

2.Factors affecting the viewing angle of a full-color LED display

The larger the full-color LED screen can be seen by the audience, the better, so the larger the viewing angle, the better. However, the size of the viewing angle is mainly determined by the die packaging method, so we must carefully consider when packaging the die.

In addition, the viewing angle has a lot to do with the viewing angle and distance. At present, most LED display manufacturers have the same angle. If you customize the angle according to the actual situation, the cost will be very high. In addition, with the same chip, the greater the angle, the lower the brightness of the full-color LED screen.

Three main points that must be clear when choosing a small-pitch LED display

In the field of LED display in 2017, the small-pitch LED display has become a well-deserved star product, and its market application scope is expanding rapidly. For users, although they are not unfamiliar with small spacing under the promotion of manufacturers, they are still not sure about how to choose products that suit their requirements. Then, when purchasing small-pitch LED products, what are the key points that users should pay attention to in order to maximize the investment benefits while meeting the needs of use?

1.”Low brightness and high gray” is the premise:

As a display terminal with a small-pitch LED display, the first thing to ensure is the comfort of viewing. Therefore, when purchasing, the primary concern is the brightness issue. Relevant studies have shown that, in terms of human eye sensitivity, LED as an active light-emitting source, its brightness is twice that of passive light-emitting sources (projectors and liquid crystal displays), and to ensure the comfort of human eyes, the small-pitch LED screen The brightness range can only be between 100 cd/m2-300 cd/m2.

However, in traditional LED display technology, reducing the brightness of the screen will cause the loss of grayscale, and the loss of grayscale will directly affect the picture quality. Therefore, an important criterion for high-quality small-pitch LED displays is to achieve ”      “Low brightness and high gray” technical indicators

In actual purchase, users can follow the principle of “the more brightness levels that human eyes can recognize, the better”. The brightness level refers to the brightness level of the image that the human eye can distinguish from the darkest to the whitest. The more the recognized brightness level, the larger the color gamut space of the display screen, and the greater the potential for displaying rich colors.

2.Select the point spacing and pay attention to the balance between “effect and technology”

Compared with the traditional LED screen, the outstanding feature of the small-pitch LED display is the smaller dot pitch. In practical applications, the smaller the dot pitch, the higher the pixel density, the more information capacity per unit area can be displayed at one time, and the closer the distance suitable for viewing. On the contrary, the longer the distance suitable for viewing. Many users naturally think that the smaller the dot pitch of the product, the better. However, this is not the case.

Conventional LED screens want to achieve the best visual effects and have the best viewing distance. The same is true for small-pitch LED screens. Users can make simple calculations through the best viewing distance=dot pitch/0.3~0.8. For example, the best viewing distance of the P2 small-pitch LED display is about 6 meters away.

We know that the smaller the dot pitch, the higher the cost of the small-pitch LED screen. Therefore, in actual purchase, users must comprehensively consider their own cost, demand, application range and other factors.

3. Choose the resolution, pay attention to the match with the “front-end signal transmission equipment”

 The smaller the dot pitch of the small-pitch LED screen, the higher the resolution, and the higher the picture definition. In actual operation, users want to build the best small-pitch LED display system. While paying attention to the resolution of the screen itself, they must also consider the combination of it and the front-end signal transmission product.

For example, in security monitoring applications, the front-end monitoring system generally includes video signals in D1, H.264, 720P, 1080I, 1080P and other formats. However, not all small-pitch LED screens on the market can support the above. Therefore, in order to avoid waste of resources, users must choose according to their needs when purchasing small-pitch LED screens, and avoid blindly following the trend.

At present, small-pitch LED products have been widely used in TV studios, power system monitoring centers, aerospace command centers, military command centers, government halls, urban monitoring centers, video conference rooms, dispatch rooms, airports, train stations, hotels, and large Medium-sized enterprises and other occasions.

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