2015年7月21日星期二

Waterproof Knowledge of LED Advertising Digital Signage

With the fast development of society, the application of LED digital signage is becoming more and more popular. However, the waterproof performance of a led panel is also a topic concerning every customer, especially outdoor led display screen. Do you have sufficient knowledge on the waterproof grade of the cabinet of the led display screen? Here the experts of Shenzhen D-King Photoelectric Technology Co., Ltd. will give us a brief introduction.



Generally speaking, the protection level of digital led signage is usually represented by IPXY, for example, IP65, X refers to the grade of preventing dust and debris from going inside, and Y refers to the closeness grade of preventing moisture and water. The bigger the number is, the higher the protection grade will be. Here we will introduce the meaning of the number after IP.

The meaning represented by X:
0: No protection
1: Prevent solid materials whose diameter is 50mm or larger.
2: Prevent solid materials whose diameter is 12.5mm or larger.
3: Prevent solid materials whose diameter is 2.5mm or larger.
4: Prevent solid materials whose diameter is 1mm or larger.
5: Prevent the accumulation of harmful dust (Cannot completely prevent dust from going inside, but the inside amount will not damage the equipment)
6: Completely prevent dust from going inside

The meaning represented by Y:
0: No protection
1: Prevent water drop. Water drops that fall vertically should not cause damage.
2: When the shell is inclined to 15°, it can prevent water drops, and water drops that fall vertically should not cause damage.
3: Prevent spilled water
4: Prevent sprayed water
5: Prevent water that is shooted onto the cabinet
6: Prevent strong shooted water
7: Can sustain soaking for short time
8: Can sustain soaking for long time under a certain pressure

2015年7月8日星期三

Scanning Modes and Principle of LED Display Sign Screen

Inside a LED display sign screen, the ratio of the lines that are lit at the same time and the lines of the whole digital signage, is called scanning mode, which can be divided into 1/2 scanning, 1/4 scanning, 1/8 scanning and 1/16 scanning. It means that the driving method of the digital sign is different, which may influence the setting of the receiving cards.


For the receiving cards are to used in a 1/4 scanning led screen, if they are used in static led display screen, the display of the led advertising display board will have 4 lines of black intervals. Generally speaking, the receiving cards can be manually set, and when the customer successfully connects the main parts such as sending card, LED display sign and computer, he can enter the relevant software on the computer to set the receiving cards. Here the experts of D-King Technology will introduce the scanning modes and principle of LED digital signage.

1. Scanning Modes of Led Display Outdoor Advertising:
(1) Dynamic scanning: Dynamic scanning refers to that “pixel to line” control is carried out from the output of the driving IC to the pixels, and it needs control circuit and its cost is much lower than that of static scanning, but its displaying effect is not very good and the light loss is also huge.
(2) Static scanning: Static scanning refers to that “pixel to pixel” control is carried out from the output of the driving IC to the pixels. When static scanning is used, control circuit will be not necessary, and its cost is much higher than that of dynamic scanning, but its displaying effect is excellent, and it has such advantages as high stability and low light loss.

2. Working Principle of Led Advertising Board with 1/4 Scanning:
Every line of power V1-V4 starts for 1/4 time according to the control requirement inside the one frame picture. It can more effectively make use of the display feature of the led advertising signs and reducing the cost of hardware.

3. Classifications of Led Advertising Signs based on Scanning Mode:
(1) Indoor full color led display: P4 and P5 use constant current 1/16 scanning and P6 and P7.62 use constant current 1/8 scanning.
(2) Outdoor full color led display: P10 uses constant current 1/2 scanning, P16 and P20 use static scanning.

2015年7月3日星期五

Outdoor P10 Advertising Display Board LED Video Screen

High Brightness Outdoor P10 Advertising Display Board LED Video Screen



Quick Details:
1. High color consistency, clear pictures, high brightness, low light failure and long service life
2. Famous brand
3. 72 hours of aging test
4. Free provision of design solution and full quotation
5. Three floors of independent production workshop
6. Month production capacity can reach as high as 4000 square meters
7. Sufficient spare modules and power supplies

Product Performance of Outdoor P10 Led Video Screen:
1. The led video display can display various multimedia files, including video, images, words and programs.
2. The outdoor led video display can display any content on the computer, including office software of word, excel and PowerPoint, so that it is completely the expanded edition of the computer monitor.
3. This outdoor led video display uses reversed polarity luminous chip, and the brightness can reach as high as 8000cd/m², so that it will not fear the front sun shining.
4. The light failure is controlled within 3% per year, thus greatly extending the service life of the led video wall display.
5. The protective grade of outdoor led display video wall can reach IP65, so that it is waterproof, thunderproof and quake proof.

Shenzhen D-King Photoelectric Technology Co., Ltd. is a professional manufacturer of outdoor advertising display board, led video screen, led video display as well as video wall led display. All of our products have got the certification of mainstream quality management system such as ISO9001, RoHS and CE, so customers can rest assured on our product quality. 

Technical Parameters of P10 Outdoor Advertising Display Board:
ModelP10 Advertising Display Board
Pixel Pitch10mm
Pixel Composition1R1G1B
LED TypeDIP346
Pixel Density10000dots/m²
Scanning method1/4
Brightness6500cd/m²-10000cd/m² (Practical situation should be subject to the configuration)
Working VoltageAC110V±10%, 50Hz-60 Hz
Average Power300W/m²
Max. Power750W/m²
Pixel No. on Unit Plate16×16
Module Size160mm×160mm
Level up degree<1mm
Viewable Distance10M -100M
Viewable AngleHorizontal: 120°, Vertical: 60°
Screen Weight40kg/m²
Driving MethodConstant current
Display Color17M~69G colors
Bright AdjustmentManual/Automatic/Remote
Grey Scale256~4096
Refresh Frequency600 Hz~2440Hz
Refresh Frame Frequency60Hz
Display ContentTV picture, ads, video, live streaming video, picture and words
Display Mode640×480, 800×600, 1024×768, 1280×960…1920×1200, 2048×640
Control MethodSynchronous, asynchronous, remote and wireless
Transmission Distance5E cable≤130M  Multimode fibre≤500M  monomode fibre≤10KM
Transmission Distance≥72 hours
Service Life of Led100,000 hours
Mean Time Between Failure≥10,000 hours
Dispersed Incontrollable Point<0.01%
Continuous Incontrollable PointNo
Protecting TechnologyWaterproof (Front size IP65, back side IP54), dustproof, antisepsis, antistatic, and has such protection functions of over current, short circuit over voltage and low voltage.
Temperature of Use Environment-30℃~+50℃
Moisture of Use Environment10%~90%
CertificationsCE, ROHS

Note: The technical parameters are just for reference, please contact us for details.

More Pictures for Your Reference:

P10_outdoor_led_display

Outdoor led video screen

2015年6月30日星期二

Selection of Led Advertising Display Board for Supermarket

How should a supermarket choose suitable led advertising display board? A supermarket should choose according the features of led advertising display board and the actual needs of customers. Generally speaking, advertising digital signage used for supermarket should have such advantages as clear font, low price and fleet control.

The led advertising display screen used for supermarket is mainly used for displaying advertising promotion information, and mainly displays words information, so it usually requires low price, for this reason, P10 outdoor digital signage and semi-outdoor digital signage can be chosen. If high displaying effect is required, indoor P5, P6 and P7.62 full color led display and outdoor P10 and P12 full color led can be chosen.


In addition to the factors of price and models of the led billboard, the following aspects should also be considered:

(1) Brightness
For indoor general illuminance environment, indoor led display is recommended, and for outside use, the outdoor led display board is more suitable. And for the environment with strong sunshine such as spacious hall, eave, outdoor canopy or under the roof, semi-outdoor led billboards are recommended.

(2) Displayed content
If needs to display images and video, a full color led display should be chosen.
To display words, data, table, three-dimensional figure and animation, biradical colorful grey level display panel needs to be used.
To display words, data, table and two-dimensional figure, double-color led billboard display needs to be chosen.
To display words, data and table, single color led billboard signs can be used.

(3) Information capacity and visual distance
When choosing a led display board, the information capacity and optimum visual distance should also be considered. The content that can be displayed by a curved led display is unlimited, but the content that can appear on one picture is limited. Besides, every model of led display panel has its own optimum visual distance.

2015年6月24日星期三

The Composition of the Price of Led Digital Display Board

As for many non-professional users, they may not know which one to choose facing the quotations offered by led digital display board manufacturers. In fact, it will be easy to choose as long as knowing the composition of the price of the digital display board.


1. Cost of LED display board
A led display board is mainly composed by led module, power supply, cabinet, flat cable and power cables, among which, the cost of led module is the highest; and the difference in price of the LED and chip is also huge. Generally speaking, the price of the led display board will account for over 70% of the total quotation, and indoor full color led display board may have higher price due to higher pixel density.

2. Control system
Led full color display board usually uses synchronous display system which is composed by sending card and receiving card. For an outdoor led display smaller than 80 square meters will need one sending card and about 80 pcs of receiving cards.

3. Accessories
To be able to work normally, led electronic signs will need many accessories such as computer, air conditioning, lightning arrester, power distribution cabinet, AMP, TV card, multi-function card and video processor. The price will be different for different brands, and customers can purchase the accessories at local place.

4. Steel structure
An outdoor led display panel will need a steel structure for fixation. Especially for outdoor large led advertising display board, it will have very high requirement for the steel structure. The cost of steel structure ranks only second to the led display screen.

5. Transportation and installation

After learning such basic knowledge, customers can ask for a full quotation when faced with different suppliers to avoid some suppliers forcing downing the price by reducing or bringing down the accessories.

2015年6月19日星期五

SMD2121 1R1G1B P3 Indoor Full Color LED Display with Modular Design



SMD2121 1R1G1B P3 Indoor Full Color LED Display with Modular Design


Application of Indoor P3 Led Video Screen:
Indoor P3 led video screen has a complete set of software kit, excellent performance and convenient operation, and it is widely used in large stadium, waiting room of train station, live broadcast site of TV program, exhibition stadium, art performance center, entertainment venues, large variety show, vocal concert, government plaza, leisure square, business center, publishing board of advertising information, business street, train station.

Functional Performance of Indoor P3 Led Video Wall:
1. Excellent displaying effect: With various scanning techniques, the pictures are stable and there are no miscellaneous points and the picture displaying effect is fine and clear.
2. Vivid and diverse animation effect, smooth and life-like video effect.
3. Shenzhen D-King Photoelectric Technology Co., Ltd. uses modular design, which makes the installation and maintenance of the led display more convenient.
4. Imported LED materials are used, high quality IC chip, noiseless large power supply.
5. The displaying modes can be freely changed by the customer.
6. The video wall led can display words, drawing, pictures, animation and video information, and the displayed information amount is not limited.
7. Customer can control the product by computer, and the operation is convenient and flexible and the pictures are stable and clear.
8. The colors are rich and bright, and the brightness of the pictures is high.
9. The visual angle is wide.
10. The video function is advanced.

Technical Parameters of P3 Led Video Screen Display:
ModelP3 Indoor Led Video Screen Display 
Pixel Pitch3mm
Pixel Composition1R1G1B
LED TypeSMD2121
Pixel Density111111/m²
Scanning method1/16
Brightness≥1600cd/m²
Working VoltageAC110V±10%, 50Hz-60 Hz
Average Power260-350W/m²
Max. Power1000W/m²
Pixel No. on Unit Plate64*32
Module Size192mm×96mm
Level up degree<1mm
Viewable Distance≥3m
Viewable AngleHorizontal: 140°, Vertical: 140°
Screen Weight40kg/m²
Driving MethodConstant current
Display Color17M~69G colors
Display ColorManual/Automatic/Remote
Grey Scale256~4096
Refresh Frequency300 Hz~2440Hz
Refresh Frame Frequency60Hz
Display ContentTV picture, ads, video, live streaming video, picture and words
Display Mode640×480, 800×600, 1024×768, 1280×960…1920×1200, 2048×640
Control MethodSynchronous, asynchronous, remote and wireless
Transmission Distance5E cable≤130M  Multimode fibre≤500M  monomode fibre≤10KM
Transmission Distance≥72 hours
Service Life of Led100,000 hours
Mean Time Between Failure≥10,000 hours
Dispersed Incontrollable Point<0.01%
Continuous Incontrollable PointNo
Protecting TechnologyWaterproof (Front size IP65, back side IP54), dustproof, antisepsis, antistatic, and has such protection functions of over current, short circuit over voltage and low voltage.
Temperature of Use Environment-20℃~+50℃
Moisture of Use Environment10%~90%
CertificationsCE, ROHS

Note: The technical parameters are just for reference, please contact us for details.

2015年6月8日星期一

Quality and Parameters of Dedicated LED for Full Color Led Screen


1. Failure rate
One full color led display is composed by over ten thousands and even hundreds of thousands of pixels consisting of Red, blue and green three LEDs, and the failure of any color of led will influence the overall displaying effect. Generally speaking, according to the industrial experience, the failure rate of the led panel display from assembly to the aging process of 72 hours should be lower than 0.03%.

2. Anti-static ability
As a semiconductor device, the LED light is very sensitive to static electricity, and it can easily cause the static electricity to lose efficacy, for this reason, the anti-static ability is paramount for the service life of the led display rentals. Generally speaking, the failure voltage of the human body static mode test of the led light should be no lower than 2000V.

3. Fading feature
The brightness of the three color led lights will fade along with the increase of working time, and the quality of LED chip, quality of the supplemental material and the encapsulation technical level will decide the fading speed.

4. Brightness
The brightness of the LED is an important decisive factor of the brightness of the electronic message board signs, and the bigger the margin of the used current is, the more goodness it will bring to save electricity consumption and stabilize of the led display screen. LED lights have different angle values, and under certain chip brightness, the smaller the angle is, the brighter the LED will be, and smaller the visual angle of the led wall display will be.

5. Consistency
Since a full color led wall display is assembled by the pixels composed by many red, green and blue LED lights, the brightness of every color of LED light and the consistency of the wave length will decide the consistency of brightness, white balance and color scale of the whole video display wall.

2015年5月31日星期日

Composing Parts of Indoor Full Color Stage Led Rental Display

Shenzhen D-King Photoelectric Technology Co., Ltd. is a famous-brand manufacturer of Led display screens, and our full color stage led rental displays are always taking the lead in sales amount. And many people may be curious about the composing parts of stage led rental display, and here the experts of Shenzhen D-King Photoelectric Technology Co., Ltd. will give everyone a detailed explanation.



The whole set of system of led rental display is composed by indoor led display, led modules, led rental cabinet, led power, led power cable, flat cable, screws, led control system, air plug ad flight case.

1. The main part of indoor led display mainly consists of cabinet, modules, power supply and connecting wire.
2. A computer. Generally speaking, a desktop computer will be used for a fixed installed led display, and for led rental display, usually a laptop and external sending card will be used together.
3. Led control system: Generally speaking, a led display will need one sending card, and the number of the receiving card will be determined by the width and height of the led display.
4. Power distribution cabinet: The quality of power distribution cabinet will influence the displaying effect of the led display screen.
5. Video processor: Large led screens and screens for live broadcasting will need a video processor.
6. Multi-functional card: This card can provide parameter acquisition of temperature, moisture and brightness and can realize the function of automatic adjustment of brightness.
7. Power amplifier and stereo: Customers can purchase this according to the installation environment, for an indoor led panel, it needs to be waterproof.
8. Main connecting wire: The main connecting wire includes the wire from dynamic electricity to power distribution cabinet, the wire from the power distribution cabinet to the display screen and the communication main cable for controlling the computer.
9. Steel-framed structure: Our company will provide the CAD reference design drawing of the led display board, and customer can make the steel-framed structure in the local place, or we can help to make it.
10. Cooling equipment: In the normal indoor environment, there is no need for special cooling device, and for an outdoor led digital display, usually air-conditioning and axial flow fan will be installed to improve the stability of the display screen and extend its service life.
11. Flight case: Usually renal led display will need flight case, and one flight case can hold 4-6 led cabinets.

2015年5月21日星期四

Energy Saving Led Video Screen Becomes Preferred in the Market

With the progress of science and technology and the constant improvement of productive forces, human beings are looting more and more resources on the earth, and many resources are facing exhaustion, for this reason, energy conservation and emission reduction becomes a topic concerning many environmentalists and even all human beings. The enhancement of environmental consciousness urges many industries to research new products and release new solutions to reduce energy consumption. As a high-tech product, led display industry also conforms to this tide and many famous led advertising sign manufacturing companies launch their energy saving led video screens.


Energy saving led video display cannot be realized only by relying on the improvement of one or two electronic parts and components, but needs technical innovation and transformation in the whole solution. In the energy saving aspect, the design of external members must make sure that the led advertising display screen has suitable gaps between the modules under both high and low working environments. Cabinet display board has intelligent temperature control and intelligent brightness control, but it still needs to effectively reduce the temperature of the led video display to improve the display effect and extend its service life. Technology is always the utmost driving force of new product and energy saving outdoor full color led display also needs new technology to support its quality and performance.



The technologies that energy led message board will need:

1. Brightness adjustment technology:
Since a led digital signage will work under various bad environments, its brightness and protective grade have strict requirement. For this reason, D-King led digital signage advertising is specially designed with brightness level 256 adjustment system to make sure that the led screen rental has the optimum display effect under any working conditions.

2. Strong convection heat-extraction system.
When an outdoor rental led display is working, it will produce a lot of heat. To ensure normal working condition, it needs to carry out systematically design on the cooling system of the led display screen, and combined with strong convection heat-extraction system and aluminous heat conduction effect, the heat dissipation is more stable and reliable.

3. Constant current noise reduction technology.
Using the internationally advanced chip system can reduce the influences of the power and other noise source factors on the led display panel.

4. Unique protective technology with environmentally friendly materials.
Using environmentally friendly materials and special technology, the protective grade of the rental led screen can reach IP67, so that the display screen can adapt to various bad weather conditions in the outdoor.

2015年4月28日星期二

How to Clean a LED Panel Display?

Before and after the installation of a led panel, it needs to be cleaned, which is a very important link as it can avoid some bad phenomena in the displaying process. After running for a period of time, there will be debris accumulation which will influence the display such as dust. For this reason, periodically cleaning and maintaining the led panel display can extend its service life and improve the use quality. The senior technicians of Shenzhen D-King Photoelectric Technology Co., Ltd. have concluded many methods which are introduced below.



1. The cleaning of semi-finished led module
When the led modules are semi-finished products, special water for cleaning panel is need. Dip the led modules on some water for leaning panels, and brush them with hairbrush, to speed up the dissolution of colophony and the drop of scaling powder, and then remove dust and debris, and this procedure of cleaning is completed by the manufacturing company.

2. The cleaning of led electronic billboards after installation
After the led electronic billboards are installed for some time, there will be dust and debris accumulation, to ensure the displaying effect, it is necessary to clean the surface of the led display panel with clean water or clear water with washing-up liquid. When cleaning the surface, the workers must be very careful and shall not make the back side of the led module wet.

2015年4月19日星期日

The Design and Installation of Outdoor Led Display Board

The main problems faced with outdoor led display board:

(1) The led board is installed outside, so that it is usually exposed to the sun and rain, and wind and dust, and the working environment is very bad. When the electronic billboard is soaked or seriously damp, short circuit or even fire will happen, thus causing failure and even fire disaster, which will lead property loss.



(2) The led sign may be hit by the strong electricity and strong magnetism caused by thunder.

(3) The temperature change of the environment is huge. When the led panel is working, it will produce a certain amount of heat, and when the environment temperature is too high and the heat dissipation is not good, the integrated circuit may not working normally or even be burnt down, which may cause the display system not to work normally.

(4) The audience of the led display screen is very large, so that the visible distance is required to be far, and the visible angle is required to be wide. Besides, the light change of the environment is also huge; especially that it may be directly shined by the sun.

Regarding the above special requirement, the design and installation of the outdoor led display board must conform to the following requirements:

(1) The display board and joint part of the display board and the construction must be strictly water proof. Besides, the display screen should have excellent drainage measure, so that the water can be drained away.

(2) Lightning arrester should be installed on the display panel as well as the building. In addition, the main part and case of the electronic advertising signs should maintain well grounded, and the ground resistance should be lower than 3O, so that the large current caused by thunder can be timely released.

(3) Ventilation device should be installed for cooling, so that the internal temperature of the display screen is maintained between -10℃ and 40℃. And axial flow fan should be installed on the upper part of the back of the display board for heat dissipation.

(4) Industrial-grade integrated circuit chip whose working temperature is between -40℃ and 80℃ should be used, so that the display panel can still be started even in winter when the temperature is very low.

(5) To make sure that the displayed content can be clearly seen from long distance when the environment light is very strong, ultra-high light led should be chosen.

2015年4月17日星期五

Main Features of P5 Outdoor Full Color Led Display Panel

Outdoor P5 full color led display panel is successfully researched and developed and has smoothly passed various performance tests. The launch of this new led panel marks a new height of the research and development ability of high-end and cutting-edge led display products of Shenzhen D-King Photoelectric Technology Co., Ltd., and sets up a new model for indoor and outdoor led display board with high definition.



Here are the main features of P5 outdoor full color led display panel:

1. High brightness and wide visible angle
The led DIP light with high brightness is used and its brightness can reach over 7500cd per square meter, and the wavelength coverage is ±1.5nm, and the visible angle is 130°.

2. High refresh frequency and high gray scale
The refresh frequency can reach as high as 3000 Hz, and the gray scale is 14bit. Besides, it supports 16 bit data processing, and the pictures are clear and fluent.

3. Professional led display control system with advanced technology and intelligent control
Point-by-point brightness and chroma emendation technology ensures the long-term evenness and conformity of the pictures. Automatic and intelligent step-by-step powering system makes sure that the brightness of the led panel automatically changes with the environment.

4. Scientific cabinet design with strong compatibility
In the product design of outdoor full color led display board, we always stick to the design concept of energy conservancy and environment protection. The structure of the cabinet is designed with standardization, and the cabinet with the same size can be suitable for different pixel display and for different installation environment, making the installation and maintenance of the cabinet more convenient. In addition, the led cabinet is light and thin, and the appearance is fashionable and in good taste.

5. First-rate protection performance
The cabinet has excellent performance of damp-proof and corrosion resistance, for this reason, this product can be used even in the air environment with high moisture and high salt. And the front of the cabinet uses IP65 protection level.

2015年4月16日星期四

Advantages of Outdoor Led Advertising Display Screens

Led electronic signs are designed for various using environments both indoor and outdoor by using such technologies as photoelectric display technology, video technology, multimedia technology, network technology, computer technique and automatic control technology to display various information factors such as words, texts, images, drawing, animation, stock quotation as well as various multimedia information and TV and video signals. The display board is formed by led parts and has such advantages as high definition, bright color, wide visible angle, stable operation, long service life and low power consumption. Due to its unit modular construction, the size of the led display panel can be flexibly controlled according to customers’ requirement.



In the future, the competition of the advertising market will be the competition of customer value, brand value, customer management and professional quality. Recently domestically famous advertising companies like Focus Media, Oriental Pearl, Tulip Media, Advision Media and Vastitude Media march into the outdoor advertising led display market, which even more declares that thriving vitality of the led advertising display market.

As is known to all, the working place of high-end people undoubtedly takes up most time of the treasure leaders, in other words, the influences of outdoor full color led advertising display on treasure leaders are huge. So what advantages outdoor full color advertising led display has?

1. Attraction.
The video images of led advertising signs can raise strong visual impact, which will attract the passing-bys to watch.

2. Dynamics.
Led advertising screen overcomes the shortcomings of billboards and neon lamp. The adjustable advertising pictures can be adjusted and changed at any time according to customers’ need and support the latest and newest content.

3. Infusion.
The advertising pictures displayed by the advertising display screens can be displayed for many times every day, which can transmit different information to customers and further improve the audience rate of the advertisement.

4. Impact force.
The led advertising screen is high-definition video display with huge picture, strong innervations and bright colors, which have very strong impact force.

2015年4月15日星期三

How to Choose A Suitable Led Full Color Display?

Led full color display is generally divided into indoor full color led display and outdoor full color led display. Many friends may not know how to choose a suitable led full color display. Here the expert of D-King LED will introduce two methods to solve this problem.



1. The environment of the led display board.

Is it indoor, semi-outdoor or outdoor? As for different environments, the waterproof requirements will be different. For outdoor full color led display signs, the waterproof requirement will be high, and it should be over IP65. According to the environment, customers can be roughly certain the purchase range, which is outdoor full color led sign, semi-outdoor full color led sign or indoor full color led display board.

2. The distance from the optimum viewing position to the display board, namely, visible distance.
This is distance is very important, as it will directly determine the model of the display board that you will purchase. Generally speaking, the models of indoor full color led display board include P3, P4, P4.81, P6, P8, P10 and P16 and the models of outdoor full color digital signage include P6, P8, P10 and P16. As a general rule, the minimum visible distance is the same with the pixel pitch, that is to say, the optimum viewing distance of P10 full color led display screen is >= 10 meters. However, this method is only estimation.

On the other hand, there is a relatively scientific method, which calculates by using the pixel density per square meter. For example, the pixel density of P10 led full color led display screen is 10,000dots per square meter, and the calculation formula of the optimum viewing distance will be 1400/√10000/m², which is 14 meters, that is to say, the optimum viewing distance of P10 display board is over 14m.

2015年4月8日星期三

Installation Requirement of Mobile Led Screen Rental

Mobile led screen rental displays information and products on a mobile car or mobile truck by using such technologies as LED technology, anti-static technology, low-temperature technology, vehicle electronics technology and anti-jamming technique. It is different from the common LED display board installed in a fixed place because the mobile led display is installed onto a truck or car which is always moving, so that it has some requirement for the installation.



1. In a car’s moving process, static electricity will be easily produced, especially in autumn; the high static voltage can reach thousands of volts. Without good anti-static precautions, the IC and LED light will be easily damaged.
2. The power supply on the car comes from the storage battery, so that when the car starts, brakes and stops, there will be high impulse voltage. If the power system is bad in quality, the display screen will be burnt down.
3. The luminance of the LED panel has attenuating property, and there will be 10-70% attenuation rate in one year. The LED display board with bad quality will be reduced half in luminance, for this reason, the content displayed on the display screen will be unclear to be seen.
4. In the north, a car is usually placed outside. The temperature in winter can reach minus 40 degrees centigrade and in summer the temperature can reach 60 degrees centigrade, which require that the power supply and display screen parts and components can work in a wide temperature range.
5. Suitable luminance. If the LED display panel does not have sufficient luminance, the displayed content cannot be seen in the daytime, so that it will lose the meaning of installing the display sign. However, if the led display screen is too bright in luminance, the car driving will be influenced.
6. The car is always in the moving motion, which has high requirement for the stability and reliability of the electronics.

2015年4月5日星期日

Positive Factors for Commercial Advertising Led Signs to Grow

As the fourth generation emerging media, commercial advertising led signs have become the new favorite in people’s eyes. Especially in recent years, with the constant improvement of technical level of led display boards and the constant enhancement of displaying effect, led display signs have become the main force of led outdoor advertising media. As a matter of fact, outdoor led full color display not only is the pure advertising display platform, but imperceptibly realizes the communication with the consumers, and satisfies the needs of advertising government public benefit and city image at the same time.



And the excellent displaying effect of the commercial advertising led display screen has gained the favor of many advertising companies and customers and it has become a bright scenery line in a city. Besides, the commercial advertising led signs have gone into a new growth time, and what are the positive factors for its fast growth? Here the experts of D-King Led will introduce them to you.

(1) The electronic led billboard industry goes into virtuous competition cycle and the price is stable and going up.
In recent years, many led display manufacturing companies begin to seek for transformation or focus on professional field and deeply plough the business market. And in this process, homogeneous competition is eased, and this industry maintains good gross profit. In the meantime, different market needs have different technical requirements, and the technical investment constantly grow. Due to competition differentiation, the product price becomes steady, and different personalized, customized and matching services are provided to satisfy the needs of market segment from different indexes and service contents.

(2) The supply chain tends to stable in price, which improves the integration capability of new technology and new service.
The core parts of a display screen include component, IC driving, hardware structural component, control system and intelligentized management system. Among them, the cost of led module exceeds 50% of the total costs. And in recent years, the price and quality of the led chip tend to stable.

Besides, the manufacturing companies of digital signage quickly sense the requirement features of the application field and use product as the platform, and the companies can integrate the resources of other market such as capital, media advertising and broadcasting content so as to upgrade pure manufacturing to service business, thus improving the comprehensive profits of the company.

(3) The substitution effect of commercial advertising led display sign.
The commercial advertising led display signs are completely suitable for the indoor installation and use requirement, so that they will form a new substitution market. New led display board can display various contents at the same, and has such advantages as fast response, high refresh frequency, high grey scale, adjustable brightness, wide visible angle and intelligent transmission and control system, thus bringing customers new visible experience.

2015年4月1日星期三

Outdoor Full Color Led Display has Super Advantages in Advertising

At present, such concepts of energy conservation, environment protection and energy recycling are contently appealed by many countries and they have become increasingly popular. And outdoor full color led display completely conforms to these concepts. Outdoor full color led signs use dot matrix or pixel unit composed by light emitting diodes to form large-sized led screens, which combines many modern high and new technologies in micro-electronics, optics, computer and information processing and have a series of advantages such as strong ability of environmental adaptation, high energy conservation, long service life, various changes, environmental protection and high and new and cutting edge technology.



In the outdoor advertising market, large outdoor full color led advertising screens have many advantages such as strong adaptability, strong visual impact, flexible advertising update, low cost and high coverage of audiences, thus increasingly become the important media of outdoor advertising broadcasting.

Compared with liquid crystal display, outdoor full color led display has super advantages in advertising, which are listed in the following:

1. Area ductility. For large size of LCD, it cannot realize seamless contiguity. However, led display screens can extend the size freely and realize seamless contiguity.
2. LEC plasma screen has fast luminous flux attenuation, so that parts need to be changed after running for about a year and half. However, on the same running condition, led display boards can run for at least five years.
3. Led digital signage can use interaction technology to increase the interaction of the advertising media and advertising audience, such as customized touch screen and realized cloud technology broadcasting control and management.
4. In the aspect of display effect, led advertising led board has high brightness, wide visible angle and good color reducing capacity, which are superior to LCD screens. Besides, LED screens are generally used in airport, shopping mall, hotel, high-speed rail, metro, cinema, exhibition and office building with strong consumption ability of target customers, making it have great advertising value.