Indoor LED Screen | LED Display Lighting

May 30, 2010

The most important part for LED Display Screen

Filed under: LED Display Screen, LED Display Solutions, LED Technology — Tags: color led display, full color led display, Indoor LED Screen, large led display, led advertising display, led digital display, led display board — admin @ 10:38 pm

When we plan to buy a led display screen,we need pay attention to LEDs that is the most important part for LED Display Board.

LED’s luminous color and efficiency is related to the production of LED’s materials and processes,Now the Widely used red, green, and blue. Because the LED’s voltage is low (only 1.5-3V), LED can show the different colors power by low voltage which itself has impact-resistant, anti-vibration, long life (100,000 hours), so in large led display device,There is no other display way can match with led display board.

The most critical parts of Full color led display is LED. For three reasons:

First, LED is the largest number of key components that used for full color led display screen, the number is several housands leds per square meter. For example, ph10mm 2R1G1B, the density is: 10,000 dots/m2, and each dots have 2 red led, 1 green led,1 blue led. so for ph10mm 2R1G1B, we use 40,000 leds/m2.

Second, LEDs determine the optical properties of the whole led display panel, it affect the evaluation of viewer whom we will show the advertising to;

LED is the most critical components for led display sign, it equals to a computer CPU. LED options have been decided more than 50% of the entire quality of the led digital display. If you can not choose a good LED, the other parts of led display panel can not make up for deficiencies no matter how good the quality they are.

The red and green LED produced as a pixel color led display screen;we call double color led display or dual color led display, the red, green, and blue LED(RGB) as a pixel color led screen,then we call full color led display or color led display.Whether using LED for monochrome led sign, dual color led display or full color led screen,if we want to display images then we need to adjust the luminance and intensity of each LED, the adjustment of the level is the gray scale. The higher gray level, then can showing images of the more delicate, the color has more abundant, and the corresponding led display control system is also more complex. Generally, 256 gray scale images, color transition will be very soft, while the 16-level grayscale color image, color transition line is very obvious. Therefore, the full color LED screen have to require 256 gray scale.

LED Display’s Working Principle

led display screen is a High-tech products that optical and computer technology in one.

LED product’s performance characteristics

led video display should have: animation features. Required LED display’s dots corresponding to the same area showing of computer’s monitor, we can it dot to dot with controlling PC. The function of text led display. Required text display stable, clear crosstalk; grayscale function. it Requires a detailed specification in the levels specified in gray. TV led video display except with animation, text display, grayscale functions, should be able to show the TV, s-videos,dvd players. rental led display aslo need the function to show the Live show,with hanging installation for different applications,and flight case for easy transportation.

LED display can be classified according to the following conditions:

1. By The Usage of the environment, it classified to outdoor led display and indoor led display.

2.By the Display color,it is divided into single-color LED display, dual-color LED display and full-color LED display. By gray-scale level,it can be divided into 16,32,64,128,256 gray LED display panels.

3.By led display board performance,it isdivided to led message signs, graphic LED display, computer led video display ,TV LED video display,led information display,etc.

4.indoor LED display be used for single color led sign, it can be divided into ph3mm,ph4mm,ph5mm,ph6mm,ph7.62mm,ph8mm,ph10mm,ph12mm,ph16mm,ph20mm; outdoor LED displays by using pixel pitch,it can be divided into: ph8mm,ph10mm,ph12mm,ph16mm,ph18mm,ph20mm,ph25mm,ph30mm,ph31.25mm,ph40mm.

led displays- Five elements to inspect the specific quality and parameters of led display screen:

1, failure rate

As color led display is composed to the group of thousands and even hundreds of thousands of red, green, and blue LED pixel,The failure of any color LEDs will affect the overall visual effect of led display wall. In general, according to industry experience, In the beginning of LED display assembly to the aging of 72 hours before shipment should be no higher than three ten thousandths failure rates (defined as the LED itself causes failure).

2, anti-static capability

LED is a semiconductor device tha is sensitive to static electricity, static electricity can easily lead to failure, The anti-static capability is essential to the life of the led display screen. In general, LED failure of human static model test voltage should be less than 2000V.

3,Attenuation characteristics

The LED’s brightness decay rate depends on Advantages and disadvantages of LED chips, auxiliary materials and packaging technology good or bad . In general, the 1000 hours, 20 mA at room temperature after the light testing, the red LED should be less than 10% attenuation, blue, green LED of the attenuation should be less than 15%. Red, green, blue attenuation consistency have the great influence on future white balance for color led display, thereby it affect the color’s fidelity of the led display sign.

4,Brightness

LED brightness is an important determinant of the led display board’s brightness. The higher LED brightness, the greater use of current margin of saving power, good stability to maintain LED. LED has a different point of view the value of the chip where the brightness has been set, the smaller the angle, LED, the more light, but the smaller viewing angle of led display panel. Generally,we should make sure the led display board has the viewing angle of 110 degree horizontal and 70 degree vertical,of course,different space and different application, should find a balance point on the brightness and viewing angle.

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January 13, 2010

LED Products Output Value Reach to 200 billion RMB In Shenzhen

Filed under: LED Display Screen, LED Technology — Tags: Indoor LED Screen, led display application, led display board, led display industry, mobile led display — admin @ 11:23 pm

Shenzhen LED industry, soared to achieve times of adversity, the reporter from the yesterday’s meeting of the Shenzhen Municipal Federation of LED industry, members of Congress second session was informed that, Shenzhen LED industrial output broke the 200 billion yuan, up more than 30% in 2009. including led tube light, led display board, and led display lightings products.

At present, LED has become a global scramble led products to compete in an emerging industry “commanding heights.” And Shenzhen as China’s first to enter the LED industry city, after nearly 10 years of cultivation and development, the city engaged in LED display lighting technology research and development, production and LED application of more than 900 enterprises have become the nation’s largest cluster of LED products. From the upper reaches of the substrate material, epitaxial wafers, chip midstream and downstream packaging, led display application and supporting materials, processing and testing equipment, and other aspects, Shenzhen LED industry has formed a complete industrial chain. Last year, the Shenzhen municipal government to seize the opportunity, will not only focus on the development of LED industry in the future as a major new industry, but also from the first half of 2009 until recently, successive introduced including Shenzhen LED “industrial planning”, support measures, including 3 copies of “official documents” and decided to spend the next three years, more than 200 million yuan, a strong boost LED industry, urged its bigger and stronger.

LED display board is playing an important role in led display industry, outdoor led display can be used for led billboard beside the highway for advetising, and Mobile led display can be used for portable advertising use. it become more and more popluar in our life. Even the Indoor LED Display can be used for LED TV, different exhibition like fashion show,automobile fair,etc..let us show your ideas with the amazing led display products.

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December 21, 2009

The Solution of LED full color display’s Color Compostion

Filed under: Indoor LED Screen, LED Display Screen, Outdoor LED Display — Tags: Indoor LED Screen, led display board, led display panel, led display screen, led full color display, Outdoor LED Display — admin @ 11:54 pm

LED display industry, starting as early as around 1987, after a decade of joint development is now beginning to take shape. At present, LED display manufacturers more and more, including some excellent companies, their common prosperity of this new high-tech industries. The twenty-first century is the era of flat panel display, LED display as the flat panel display, one of the mainstream products, but also that there will be even greater prospects.

LED display panel is a computer-technology, information processing technology, electronics, optics and color science and other high-tech combination of electronic displays and, in general, LED display screen is divided into monochrome screen, color led display sign . The so-called monochrome screen, the name suggests, displays by a single LED composed of a certain color. The red and green LED display panel is called as a pixel color screen or a color screen. The red, green, and blue put together three kinds of LED display board as a pixel is called tri-color screen or full color.

Some important technical info for led display board, we need to pay attention to:

1.Chip K-factor management of each batch produced products, chips have carried out strict control.

2.Packaging Process Control led full-color display with LED packaging technology has its own characteristics

3.White Balance design our customer’s needs, summed up a set of their own method of calculation. Customers who need your brightness and display distance between two points tell us that we can serve our customers all-round way for the customer’s screen to make a perfect light distribution program.

We are a led display manufacturer that provide all kinds of led display solutions , such as mobile led display, circle led display, stadium led display board, outdoor led display, indoor led screen, etc. you can visit our website www.unit-led.com for led display screen products, and www.led-display-light.com for more information about led display panel

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August 30, 2009

Design and Choose of Full Color LED Display Screen

Filed under: LED Display Screen, LED Technology — Tags: Add new tag, Color Uniformity, Indoor LED Screen, led advertising display, led display screen, led display.led screen, led screen manufacturer, SMD Outdoor LED Display Screen — admin @ 8:54 pm

1. Display screen size of the design in the design of body size, there are three important factors:
(A) shows the content of needs;
(2) site conditions in space;
(3) The display unit module size (indoor display) or pixel size (outdoor display).

2. Power consumption and power requirements
The screen is divided into the average power consumption and maximum power consumption. The average power consumption is also called the work is usually the actual power consumption. Maximum power consumption is a startup or extreme conditions such as full-light power consumption when maximum power is alternating current power supply (diameter, switches, etc.) must be considered elements. The average power consumption is generally the largest power of 1 / 3.

Display is a large-scale precision electronic equipment, in order to safe use and can * work, its AC220V power supply input connected to the computer or its input AC220V power supply must be grounded.
Note: Your computer’s power supply input AC220V ground terminal has been connected with the computer chassis.

3. Outdoor screen issues should be considered
Outdoor screen main issues are as follows:
(1) screen installed in the outdoors, often exposed to the sun and rain, wind and dust cover, poor working environment. Electronic equipment is wet or damp can cause serious short-circuit or even fire, cause failure or even fire, resulting in losses;
(2) The screen may be caused by the strong electric magnetic thunderbolt attack;
(3) The ambient temperature changes significantly. Display work itself, we should have some heat, if the ambient temperature is too high and the heat also poorly integrated circuits may not work correctly, or even burned, making display systems do not work;
(4) Shouzhong Mian wide and far-sight requirement, wide field of vision required; ambient light changes, in particular, may be subject to direct sunlight.

To deal with the special requirements of outdoor displays must be done:
(1) The screen body and screen combination of body and the Ministry of Construction must be strictly waterproof leakproof; screen body have a good drainage measures in the event of a smooth water emissions;
(2) on the screen and buildings to install lightning protection devices. Display main body and shell to maintain good grounding, grounding resistance of less than 3 ohms, so that lightning caused by high current and timely discharge;
(3) installation of ventilation equipment, cooling, so that screen the internal body temperature between -10 ℃ ~ 40 ℃. Body behind the top of the screen to install axial fans, exhaust heat;
(4) The choice of working temperature -40 ℃ ~ 80 ℃ between the industrial-grade integrated circuit chip, to prevent the winter temperatures too low to display can not be started. ;
(5) In order to ensure that the case of the strong ambient light visibility distance, you must use ultra-high-brightness light-emitting diode;
(6) shows the use of new media, wide angle tube, wide viewing angle, color pure, consistent coordination, life expectancy more than 100,000 hours. Shows the medium outside the package, currently the most popular cover along with a square cylinder, silicone seals, no metal-based assembly; its elegant exterior appearance, sturdy and durable, with anti-direct sunlight, dust-proof, waterproof, anti-heat, anti – a short circuit “Five Anti” feature.

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February 12, 2009

Introduction of LED Display Screen–Part three

Filed under: LED Technology — Tags: Indoor LED Screen, LED Display LED Screen, Outdoor LED Screen Cabinet — admin @ 11:16 pm

3.LED Screen Cabinet

LED Cabinet front view LED Screen Cabinet Back view

Single LED Cabinet resolution:64(L)×48(H).
There aslo have Hanging installation Cabinet with Hanging board,designed as per Clents requests,Above the backside ,there are printed serial numbers, which are available during installation.If you want us to design the Hanging LED Display Screen Cabinet for you,please click here: Indoor and Outdoor LED Screen.

4.Waterproof plastic bolts