LED Display Lighting

January 13, 2010

LED Products Output Value Reach to 200 billion RMB In Shenzhen

Filed under: LED Display Screen, LED Technology — Tags: , , , , — 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.

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: , , , , , — 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

Embedded Computer For Stadium LED Display Board

Filed under: LED Display Screen — Tags: , , — admin @ 11:30 pm

LED Display Screen is a set of micro-electronics, photoelectron technology, computer technology, information processing technology in one led large-scale display board system. It is its colorful, wide dynamic range and high brightness, long life, stable performance and led display wall  is becoming the leader in display media are widely used in advertising, securities, information dissemination, press releases, etc., is currently the most advanced international Display Media.

For stadium led display, we have a full solution for it. with the features of:

1. The sports led display should be Totally waterproof,Protection grades: IP65 Front and Back.

2. To display logo and word ad. ,it should be enough bright:Average :≥6500, can satisfy the brightness request.

3. The football match and the ad. on the display will be field pickup, so the ad. screen’s refresh frequency should be more than 1000Hz.Our recommended Ph16mm and Ph20mm LED Stadium Display work with static scan, its refresh frequency can reach 9600 Hz, which can satisfy any nemo.

4. As a much long display, it should be easy to examine any trouble:Our control software can monitor the working status of each signal at anytime.

5. It should be easy to be installed and maintained:As our unit boxes are made of Aluminum, each unit box is very light, also we have handle on the two sides of the unit box, it is easy to be put up even by hand. There are three pair of locks of each side, it is easy to fix and made the surface of the total screen at the same level. The king pin make it is easy to be lifted and moved by pulley.

The third quarter of 2010, penetration rate of LED-backlit displays will reach 22%

Filed under: LED Display Screen, LED Technology — Tags: , , , — admin @ 7:37 am

Although the third quarter of 2009 LED backlight display liquid crystal display panels in the area of penetration was only 1.4%,But the panel makers believe that If the brands a more active use of LED display panel,By 2010 the third quarter of, LED backlight panel liquid crystal display panels in the area of penetration will reach 22%.
DisplaySearch, on the LED backlight and the backlight display module survey report points out that Third quarter of 2009, Innoulux is a LED-backlit display panel market leader in unit shipments market share of 34.4%.The other panel makers, such as LGDisplay, AUO, Samsung, CMO, also the production of such products. Terms of brand manufacturers, Samsung, Dell, LG, Lenovo, BenQ, etc. all in the third quarter of 2009, introduced a LED-backlit display products range in size from 18.5 inches -24 inches.

DisplaySearch believes that manufacturers and brand manufacturers in the panel joint efforts in 2010 in the third quarter LED-backlit display board will exceed 22% of the market share.

August 30, 2009

Design and Choose of Full Color LED Display Screen

Filed under: LED Display Screen, LED Technology — Tags: , , , , , , , — 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.

August 4, 2009

LED Display Luminance and Color Uniformity

Filed under: LED Display Screen, LED Technology — Tags: , , , , , , , , — admin @ 12:44 am

LED Display Manufacturer for Luminance and Color Uniformity:

1. When we Manufacture LED large display, the first choice in accordance with the brightness of LED indicators or led display module, followed by the choice of products based on red, green and blue color brightness than to determine what kind of color as the base, the general is a low brightness, as Benchmark light, when the benchmark has reached a maximum brightness, the adjustment of another (color) or two (full color). When two-color led display screen is in most cases to green as the base, adjusting the red diode current. General is to reduce the operating current to balance the color yellow for the adjustment of standards, this should reduce the brightness of the led  video display screen. To display the best color balance adjustment, you will reduce the led screen brightness. If the led RGB display brightness in order to achieve the requirements of each color have a maximum brightness, then lost the balance of colors, such as: two-color screen reddish yellow, or green side.
Low-level TTL output is about 0.4V, for irrigation if the current input, modify it by adding the maximum normal current 35mA, when more than this current, the output low-level increased, with the increase in current, constant low-level output higher output voltage that is greater than 0. 4V circuit is still working correctly. Show circuit in the scan, the working current of 20mA to meet the requirements of control of red, because red is relatively high brightness LED; green LED is higher than the operating current 20mA, current about 30 ~ 50mA in between, at this time, 74HC595 output voltage should be increased, because there 74HC595 output resistance, and non-linear change.
2. Dynamic scanning circuit scans, static-driven manner. Display by the display module to scan the frequency of structural limitations, each module there are 8 × 8 months LED display the entire line of data of all modules in series, the data is updated once a long time, when the scanning frequency of 100Hz, the entire led screen brightness will be reduced. If the lower screen of the scanning frequency, indicating lower brightness. Experiments show that sweeping depiction of the relationship between frequency and the color is relatively small.
So,After two-color LED display on the design and analysis, the effective adjustment of the technical parameters of the circuit, to be a better led display sign. Facts have proved that the rational analysis of the technical characteristics of the circuit, so that the work of the best circuits in the state, will be able to achieve the desired effect. 74HC595 companies choose a different circuit, different effects, in a led full color display of as much as possible to choose the same circuit, to avoid influence by the circuit parameters showed different results.
LED display board design and manufacturing is an important condition for the cost of production, therefore, the choice of components in the process of meeting the requirements, select the price low. In this paper the technical design and analysis on the basis of the circuit will adjust to display the best effect, to create a performance / price ratio of the led display panel, with market competitiveness.
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