Archive for month: October, 2021

Full-color LED display 3D technology accelerates to seize the share of LCD screens

Judging from the market’s response in 2013, the application of high-definition indoor full-color LED display is mainly to replace indoor DLP, LCD, projection, etc. The application areas include conference video, security monitoring, command and dispatch center, etc. From the perspective of the entire indoor display industry, the sales of DLP, LCD, projection and small-pitch LED displays in 2013 were about 11 billion, and the indoor display market share in 2014 and 2015 could reach about 15 billion.

  To enter the civilian market, LED TVs need to make further breakthroughs in some technologies and applications. First of all, the problem of the display screen, the current display point of LCD TVs can achieve 0.58, even smaller and 0.4, 0.3. If LEDs are used instead, further breakthroughs in the upstream technology of the display LED industry chain are needed; secondly, application companies are required Further in-depth research and development will be carried out to combine the panel and the cabinet more effectively; in addition, can the combination of the PCB board and the LED panel be separated? If the LED TV fails, only a simple module replacement is required by the maintenance personnel. These are issues that application companies need to make further breakthroughs in the R&D process; again, further reduce prices and gain wider market acceptance. It is worth pointing out that the current comfort problem for direct viewing of LED TVs with human eyes has been solved, which is mainly manifested in the technical indicators of low brightness and high grayscale.

  However, it is worth mentioning that LED displays have made initial breakthroughs in naked-eye 3D display effects. In the future, full-color LED displays will truly achieve high-definition displays. At the same time, with naked-eye 3D high-tech functions, it will be LED indoor One direction of the display’s value-added. The naked eye 3D LED display not only brings shocking display effects to the audience, but also realizes a healthy and comfortable naked eye vision 3D feast. Just imagine, when the audience take off the shackles of traditional 3D glasses and easily enjoy movie theaters and commercial advertisements in public places, the naked-eye 3D LED display will become the focus of the audience.

Asynchronous control scheme and characteristics of led electronic display

The asynchronous graphic control technology of LED electronic display means that the LED screen has the ability of storage and automatic playback. The edited text and non-gray-scale pictures on the PC are transmitted to the LED screen through the serial port or other network interface, and then the LED screen is offline. Automatic playback, generally does not have the ability to display multiple grayscales, mainly used to display text and simple graphic information, and can be connected to multiple screens. The main control PC transmits the information to be displayed and various control commands to the control board in the screen through serial communication. The control board in the screen contains a single-chip microcomputer and memory. The control board in the screen stores the information, and then displays it in accordance with the command. On the screen.

   (1) Main features of asynchronous system

   1. Due to the limitation of content storage space, most of the displayed content is mainly text, pictures, and characters.

  2. Because the principle of the asynchronous system is to store the content to be displayed in the control system in advance, so as to avoid occupying the control computer. Can save costs.

  3. It is mostly used for display screens with a small area that do not need to be changed frequently.

   (2) Points for Attention in Asynchronous Graphic and Text Control Technology

   1. Adapter: The host computer uses the serial port RS232 protocol to go online through the RS232-RS485 adapter, which is an optical isolation type.

  2. Control panel: Receive the information to be displayed and various control commands transmitted by the PC through serial communication. The control panel contains a single-chip microcomputer and memory. The control panel in the screen stores the information, and then displays it on the screen according to the command. Features are as follows:

   1. When the vertical dots are within 128, the horizontal dots can be up to 2000 dots. If the vertical is 16 points, the horizontal can reach 4000 points.

  2. The large-capacity memory supports the first- and second-level Chinese fonts and a large number of proprietary fonts, and the storage capacity is 16 scenes.

  3. It can be controlled by computer or displayed offline.

   4. The information can be stored for 1 year after power failure.

   5. With perpetual calendar real-time clock function.

   (three) single network cable (four cores)

  Using a four-wire system: a pair of differential twisted-pair wires receive, and the other pair of differential twisted-pair wires send. The communication distance is 1200 meters. It adopts a bus-type networking structure, with a maximum of 32 lower-level computers.

   (four) host computer editing and broadcasting software

   Communication screen LED program editing software, in line with LED graphic screen control protocol. It is suitable for editing and broadcasting text and image programs of multiple monochromatic or dual-primary color LED display screens of different lengths and different widths. Send 16 more programs each time.

  (5) LED graphic screen control protocol

   1. This protocol supports dot-matrix single-color, dual-color, graphic and text networked LED displays.

   2. The networking form is bus type, the upper computer is a PC computer, and the lower computer is the single-chip microcomputer in the LED display control board. It adopts four-wire system, and the online protocol is RS485.

   3. The host computer adopts the serial port RS232 protocol to go online through the adapter conversion.

   4. Support TCP/IP protocol transmission.

  Asynchronous system is mainly applied to the display screen with a small area and does not require the display content to be displayed synchronously with the control computer. Such as the dynamic display of various bar screens and small and medium-sized screens, various types of industry users (such as bank announcements, recruitment information releases, product information releases, etc.). Under normal circumstances, single-color or two-color display screens generally use asynchronous control systems.

LED display? New breakthroughs in research on “blue light” damage to the eyes of LED chips

Showa Denko Japan has developed LED chips that can reduce the “blue light” emitted by personal computers and smartphone screens by 95% compared to previous products. Blue light is thought to cause eye fatigue or sleep disturbance, so protective glasses that can prevent blue light from passing through are welcome. Showa Denko plans to realize the commercialization of new LED chips in 2014 and expand the demand for LCD screens and LED lighting.


LED lighting and LCD screens mainly use blue LEDs as light sources. The blue light emitted by the blue LED is considered to be the main reason that may cause the symptoms of dry eyes and difficulty falling asleep.
Showa Denko combined LED chips in three colors of magenta, yellow and dark green to obtain basically the same effect as the blue LED light source. The brightness of the conventional magenta LED cannot be used as a light source for lighting, etc., but Showa Denko has improved the brightness through its own technology.


Since blue LEDs are not used, blue light can be reduced by more than 95%. It is said that although the price is relatively high, reaching 2 to 3 times that of blue LEDs, when used in products such as lighting and liquid crystal displays, the price of the product itself is expected to increase only by 20 to 30%.


Showa Denko has also been producing LED chips before, but not blue LEDs. The company hopes to use new LED chips as substitutes to explore market demand. It plans to use the existing facilities of the Chichibu Office in Chichibu City, Saitama Prefecture for production. In addition to LCD screens, it is also expected to be used for lighting in offices and desks.

How to do a good job of fire prevention for LED display?

The quality of display fire protection technology is mainly related to the fire protection raw materials and cabinet technology of the display. Fireproof raw materials mainly include the wires and power supply used inside the display screen, the fireproof materials of the external protective structure and the plastic kits: 4 aspects:

1.In most display applications, the larger the unit area of ​​the display, the greater the power consumption, and the higher the requirements for the stability of the wire. Among many wire products, the use of wires that meet the requirements of the national standard can ensure their safety and stability. There are three requirements: the core is a copper wire conductive carrier, the cross-sectional area tolerance of the core is within the standard range, and the insulation of the rubber covering the core Compared with the general copper-clad aluminum wire core, the wire core with a smaller cross-sectional area and insufficient insulation rubber grade has more stable electrical performance and is less prone to short circuit;

2.UL-certified power supply products are also the choice when choosing similar products. Their effective conversion rate can ensure the safety and stability of the power load, and they can work normally in the hot external environment.

3.In terms of materials for the external protective structure of the display screen, most of the display products with a higher fire rating on the market are made of fireproof aluminum-plastic panels, which have excellent fire resistance, strong fire resistance and flame retardancy, and the core material has a very good oxygen aging performance. Strong, melting point temperature 135℃, decomposition temperature ≥300℃, environmental protection performance, low smoke and halogen free, in line with SGS, flame retardant B-S1, d0, t0, refer to the use standard UL94, GB/8624-2006. The aluminum-plastic panels of general outdoor display products age quickly with high temperature, rain, cold and heat impact, so that in the humid climate season, rain and dew will easily penetrate into the screen and cause short circuit of electronic components and cause fires.

4.There is another important part of the fireproof raw materials of the display screen, which is the plastic kit. The plastic kit is mainly the material used for the bottom shell of the unit module mask. The main raw material used is the flame-retardant PC+glass fiber material, which not only has the flame-retardant function. , It can be used in high and low temperature and long-term use without deformation, brittleness and cracking. At the same time, it can be used in combination with a better sealing glue to effectively prevent rainwater from the external environment from penetrating into the interior and causing short-circuit and fire.

5. In the absence of breakthroughs in the core materials such as lamp beads, the brightness cannot be increased by increasing the current.

In addition to the internal raw materials that will affect the fire protection effect, the external configuration and design are also very important, but the external configuration mainly involves heat dissipation in the fire protection problem. When the display is working, an exhaust fan and air conditioner will be configured to cool the interior of the screen. It is recommended to install a 1P air conditioner every 8-10 square meters to ensure that the temperature in the screen body is maintained at a normal constant temperature. Inadequate configuration of the air conditioner or exhaust fan will cause uneven heat dissipation, which may easily lead to hidden safety hazards inside the screen body due to temperature rise. At the same time, many LED companies simply simulate the spray waterproof test in the external environment when testing the protection level of the cabinet. The durability and strength of the waterproof effect need to be verified. The occurrence of water seepage is an important reason why outdoor display screens are prone to fire or have a short service life. When dealing with thunderstorms, the lightning arrester on the screen is also a tool to avoid the lightning strike and burn the internal components of the screen. It can directly lead the lightning into the ground without affecting the screen.

6. Install correctly

LED electronic displays are electronic products, and part of their main materials are also combustibles. Therefore, we must fundamentally start to “prevent problems from unburnt” and use high-quality power supplies, wires, ICs, and connection devices that are combustible. Devices, reduce the failure rate, and control the probability of fire in the led display; technically, the installation, guidance, and inspection of the led display must be carried out by professionals during the installation of the led display, which can prevent it beforehand; the flammable surrounding the led display Remove materials and combustibles to prevent the LED display from catching fire due to the surrounding fire hazards; in terms of after-sales maintenance, the LED display should be inspected and inspected regularly by professionals!

Several major characteristics of the LED display market in the Year of the Ox

Price cut: helpless to continue. The price drop of LED display terminal products best reflects the helplessness of the industry. A company once said that the average price per square meter of LED full-color display products in 2009-2011 was 12,400, 12,000, and 10,700 respectively. , The average selling price in 2011 decreased by 13.71% compared to 2009. The company did not point out the price of its products in 2012 and 2013. In fact, according to the average selling price in the market, the price per square meter of LED full-color displays ranges from several thousand yuan. The price is publicly bid by the manufacturer. Depending on the material and process, taking outdoor P10 as an example, the price per square meter ranges from 4,000 to 10,000 yuan. If it is a wholesale indoor full-color display, the price is even lower. It can be seen that the continued decline in the price of LED display products in 2013 is a manifestation of industry competition, and this trend will continue.

   Second, run off, in 2013, the living environment of LED display companies is not optimistic. Especially for small and medium-sized enterprises that do not have scale advantages and product advantages, it is even more difficult to find a balance in the cracks. As the price of LED displays is becoming more and more transparent, and the payment cycle is getting longer and longer, the company doing project engineering has to deal with the entanglement of customers, but also take responsibility for the supplier. Therefore, once bad debts or product problems are discovered, it may be possible As a result, the entire enterprise cannot be turned around, and finally it has to go bankrupt. Big Horizons, Haobo, Vision Light, Everlight, Shifang, and other billion-dollar enterprises are also unable to escape bad luck, and the impact of their bankruptcy is huge, leaving behind a lot of debts. In the end, innocent employees and suppliers are injured. NS.

   Third, channels: continue to be hot. Channel competition has always been a must for LED lighting companies. However, in recent years, LED display manufacturers have also begun to be keen on expanding channels, mainly because display products have become more standardized and large-scale. Whoever can get the support of distributors across the country can cover the national market and expand its influence.

Fourth, expansion: non-stop. Some people say that the LED display industry market competition is so stimulating, how can anyone expand production? This statement is wrong. Not all companies are compressing their own business. On the contrary, the market downturn has eliminated some companies while also giving some companies opportunities. Chips have received many government preferential treatments or direct subsidies for their expansion. Some companies have also continued to expand their production due to industrial needs. The construction of industrial parks is ready for subsequent production. Of course, some manufacturers of wholesale display screens are also constantly expanding production. Although their profits are meager, their business seems to be getting bigger and bigger.

   Fifth, subdivision: a common practice. When the argument that the LED display market is saturated began to circulate in the industry, many visionary companies have begun to focus on emerging market segments. The competition of display screens in the conventional field depends on the strength and price of the enterprise, but the more segmented market depends on the technical ability of the enterprise. At present, the LED display industry has gradually opened up some new growth highlights, such as high-density and small-pitch LED displays, and thus put forward the concept of LED super TV; such as outdoor surface-mounted LED displays, which will be outdoor direct-plug displays The future replacement device of the screen.

   Sixth, integration: has become a trend. Integration includes horizontal integration and vertical integration. Enterprises can choose the way of integration according to their own development needs. Many companies separate marketing from the two major sectors of display and lighting at the same time, which is a kind of integration; Sanan Optoelectronics and National Star Optoelectronics, through equity participation or establishment of branch companies, spread their antennae throughout the upstream chip, midstream packaging and downstream application fields, which is also a kind of integration; Epistar in Taiwan, China, is using virtual vertical integration as a strategy to strengthen its export on the application side; more display companies are doing integration actions in the form of bundling or alliances with suppliers. In short, integration has become an unstoppable trend in the LED display industry, and it is also a direct contributor to the future market structure.

CREUVIEW outdoor P10 LED display enters Kuche, Xinjiang

Kuqa County is located in the central and western part of Xinjiang Uygur Autonomous Region, the eastern part of the Aksu area, the southern foot of the middle section of Tianshan Mountains, and the northern edge of the Tarim Basin. It borders Luntai County to the east, Shaya County to the south, Xinhe County and Baicheng County to the west, and Hejing County to the north. Kuche Town, the county seat, is 750 kilometers away from Urumqi by highway. The county has a total area of ​​14,528.74 square kilometers and a total population of 405,894 (2003). There are 14 ethnic groups including Uyghur, Han, Hui, Kirgiz, Kazakh, Mongolian, Russian, Xibe, Manchu, and Uzbek. Known as the “hometown of singing and dancing”, “the capital of music in the Western Regions”, and “hometown of melons and fruits”.

CREUVIEW outdoor curved advertising LED display is completely seamless splicing, using outdoor P10 full-color LED display, rich in color, clear and natural; stable system; high refresh rate, smooth picture quality, no flicker, wider display viewing angle, Let the audience in all positions be able to watch a clear picture, the advertising effect is very ideal!

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.

Did you buy the right indoor and outdoor LED display?

When selecting and applying Shenzhen LED display, the key points are in these aspects, and the following will give you an explanation:
1. Detailed description of the life of indoor LED electronic screen
The service life is 100,000 hours. The technical documents produced by the LED raw material manufacturer indicate that the life of the LED luminous object is 100,000 hours under ideal conditions. The ideal situation means that the LED luminous object will never shine under the condition of constant voltage and constant current power supply in the laboratory. By the time it does not shine at all, 100,000 hours will be converted into 11 years. The LED display screen currently uses civilian-grade components, and its application life span does not exceed 8 years.

The function of the LED display is the display function. When the LED display is on and can only be seen at night, it cannot be explained that it is up to the standard and has the value of the commodity. A car can run for 15 years, and if it is not used for 3 years, it will be charged. The natural environment and method of application are quite harmful to the life span of the product.

2. Price selection of indoor LED electronic screens
The choice of LED display depends on the comparison of the use effect and not simply on the price. Because the prices on the sales market are too chaotic at this stage, many prices are not even the cost of people’s products, which indicates that the raw materials used are not very good, so when customers buy goods, they must grasp the company’s status and a display screen. How much is the cost and price, customers can not only pay for the goods, but pay attention to the useful life and display effect of the LED display.

The LED display is the ultimate fusion of high-tech and news media. It can vividly present the core concepts of beauty and fashion, and it can completely become a new force in stage design, in new stage performances and outdoor advertising. Ways continue to appear, from traditional LED billboards, to solid-color word-moving screens, to today’s wonderful LED displays. With the development trend of the LED manufacturing industry, outdoor media advertising methods have become more and more fashionable, and may become the development trend of urban new media in the next few years.

At this stage, most of the KTV nightclubs, etc. install ultra-clear displays in the rooms. Outdoor LED displays have already occupied 80% of the outdoor media advertising industry’s market share, becoming a new carrier of large and medium-sized outdoor media advertising. 160-degree angle, broadcast-level color saturation, LED color temperature and chromaticity are intelligently adjustable, which is more suitable for long-term watching.

How to buy LED display screens by seaside rivers and riversides?

In choosing a high-quality LED display, in addition to considering the quality of the display itself and reliable service, choosing the right LED display product according to different environments and uses is another guarantee. Below we will combine the seaside and riverside environment to understand the choice of LED display.

The most notable features of the seaside and riverside environments are high humidity, strong wind, strong ultraviolet rays, and easy water ingress.

1.Humidity

In the later use process, excessive humidity will cause the PCB board, power supply, power cord and other components of the LED display to be more likely to be oxidized and corroded, resulting in failure. So this requires us to make anti-corrosion treatments on the PCB board when we make LED large screens, such as coating the surface with three anti-paints, etc., and use high-quality accessories for the power supply and power cord. The welding place is the most likely to be corroded. Pay attention to the protection work, especially the outdoor LED display frame, which is easy to rust, it is best to do anti-rust treatment.

2.Wind

Excessive wind, the most direct impact on the installation of the LED display, so before installing the display, we are required to do a good analysis of the force, taking full account of the wind factor.

3.Ultraviolet rays

Strong ultraviolet rays are more likely to cause the aging of the surface of outdoor LED display screens, thereby reducing its lifespan. The selection of excellent materials when making masks is beneficial to resist the damage caused by ultraviolet rays.

4.Waterproof

Usually the waterproofing mainly considers rainwater, and the waterproofing of special environments such as seaside and riverside should be considered more comprehensive. The seaside salinity and humidity are relatively high, and better waterproofing and the pH requirements that can be tested are required. Waterproof and salt-proof from all directions measure.

5.Perspective

This is an easily overlooked factor. In this environment, the viewing angle is usually relatively wide and the audience is relatively wide. When choosing a product, it is necessary to fully consider its main audience to determine the requirements for the viewing angle of the LED display.

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