LED display LED screen led panel Blog

LED video wall displays give you the power to communicate, to motivate, and to entertain. LED video wall displays are seen to be sited for outdoor advertising, in casinos, for events like sporting events in stadium and arena, for staging and mobile display etc.

This larger dynamic range helps Act One displays show more details on dark scenes, and smoother, more brilliant colors for all videos and pictures.

SMD lighting Technology the leading manufacturer of LED video wall displays has proven itself in distribution of LED video wall displays with solely providing high brightness output to ensure high visibility for outdoor video displays which is very critical issue.

The horizontal viewing angle of video displays is up to 150 degrees in the daytime, and up to 170 degrees in the night time. It means with displays, you will be able to reach more viewers and broadcast your information more efficiently.

The display systems come with user-friendly software to perform remote control and management. With the software, you can remotely monitor the status of the display, as well as upload and schedule files to show.

Features
SMD LED Packages:
Red, Green and Blue light blends within a single package to reduce the necessary viewing distance.
High Brightness:
User-controlled intensity of up to 2,000 nits overcomes harsh indoor lighting environments.
Advanced Video Processing:
12-bit LED image processing produces a crystal-clear picture with true-to-life color reproduction.
LED HD Ready:
Aspect ratio independent and compatible with both standard and high-definition image feeds.
Any Shape, Any Size:
Module-based design allows for unique shapes and aspect ratios while eliminating all limitations on display size.

LED fullcolor display are amazing with it’s bright enough to see in broad daylight;stand up to severe weather conditions and pwoer less. But as two sides of a coin, LED have her biggest disadvantage—-Uniformity of Luminance and Color.

The root cause of luminance and color uniformity problems in LED screens is the LEDs themselves. Modern manufacturing processes for LEDs produce LEDs that vary greatly in both brightness and color. For example, when you apply the same electrical current to two green LEDs produced as part of the same batch, the brightness may vary by as much as 50% and the wavelength may vary by as much as 15-20 nanometers. These differences are very noticeable and LEDs that vary by this much should not be used in the same video screen.

By contrast, televisions, which rely on phosphors to produce brightness and color, do not have this problem. The phosphors in each pixel produce nearly the same brightness and color when hit with the same amount of energy from the cathode ray gun. Since the pixel response in CRT devices is very repeatable, the uniformity of CRTs is very high. (See the first line of pixels in Figure 1 below.)

LED screens, however, have two problems as mentioned above. First, the brightness of each LED varies widely even though they are driven by the same voltage and current. (See the second line of pixels in Figure 1, where the brightness of each LED is represented by different size dots.) Second, the colors of the LEDs are also quite variable. (See line 3.) When you add these two problems together (See line 4), you can see why achieving uniformity in a LED screen is so difficult. Imagine viewing a TV where the phosphor dots are different sizes and different colors. It would not be a pretty sight, just like some LED screens you may have seen.

Another cause of non-uniformity in LED screens is that the LEDs get slightly dimmer as they are used (see Figure 2). The blue LEDs dim the most and the red LEDs dim the least, but the biggest problem is that individual LEDs dim differently over time. So, even if an LED screen were perfectly uniform when it left the factory, it would loses its uniformity as the LEDs dim, and after about 2 years of usage it would begin to look quite non-uniform.

现代奥运会项目的金牌简单地说可以分为三类。

第一类是职业选手的项目，如足球、蓝球、网球等等。这些项目，本身有极高的商业价值，一流队员多像姚明一样，身价千万，靠打球谋生，是地道的职业选手。这类项目，本来是被以业余为宗旨的奥林匹克运动所排斥，如今虽然有些喧宾夺主，但现在还不是奥运的主流。

第二类是田径、游泳等项目。这类项目是奥运的正宗，以业余为宗旨。但是，因为这些项目观赏性强，商业价值不断提升，每个精英运动员都能拿到一大堆商业赞助。比如菲尔普斯，这次如果拿了八金，赞助他的泳装公司Speedo就会额外给他100万美元的红利。这点钱比起姚明的收入来也许是小意思，但对于露面有限的游泳运动员来，则是一笔不小的财富。这笔财富加上其他收入，不仅使这些精英运动员能够全心全意地训练，而且用得起一流的教练、医生、营养师等等，实际上也职业化了。

第三类则是射击、举重、赛艇、跳水、乒乓球、体操等项目。这些项目在世界大部分国家都没有商业价值，队员基本是业余的，全凭个人兴趣及少量NGO赞助。比如美国的赛艇运动员，拿了世界冠军还要到商店去打工。

冷战时代，体育成为苏美两大阵营的“面子游戏”。苏联、东德、罗马尼亚等国家通过举国体制，靠国家的大规模投入，以计划经济的方法经营体育。美国等西方国家则挖掘有商业化潜力的项目，以市场经济的方法与之抗衡。结果，在田径、游泳等有商业潜力的项目上，美国尚可与苏联、东德有一争；但在没有商业潜力的项目上，则大败而归。到冷战后期算一下金牌奖牌总数，美国不仅败给苏联，甚至败给东德。

冷战结束后，苏联、东德、罗马尼亚的体制迅速瓦解，在奖牌排行榜上的位置迅速下降，自雅典奥运会开始让位于中国。但是应该看到，中国的崛起，虽然和中国国力大幅度提升有关，但更大的原因，恐怕还是苏联东欧国家放弃计划经济体制后留下的真空。这个真空，主要都集中在前面所说的第三类项目上。比如，在体操、跳水等项目上，苏联、罗马尼亚国家一直压中国一头，如今已经没有问鼎的实力。中国的对手已经不复存在，中国垄断金牌自然容易。在女子举重等项目中，中国队几乎没有对手，因为这个项目在别的国家几乎没有几个人玩。而在前两类职业化或者有巨大商业潜力的项目中，美国等西方国家继续保持优势，中国尚难与之竞争。

看看前几天中国队的金牌，基本全是射击、举重、体操、跳水这些第三类项目。中国在这些项目上培养了大量的专业运动员，而对手则多半是业余运动员，除了训练之外还要自己谋生。这样我们的优势自然很大。而在足球、篮球、田径、游泳等项目上，中国运动员则缺乏上佳表现。

所以说按照奥运的精神来说，奥运金牌只是对一个提高国民身体素质的荣誉奖励，而不是为了金牌而着重培养一部分的专门人员。从这个意义上来说我们的金牌的含金量到底有多高呢？

The 29th Olympic Game started its ceremony in Beijing in 8th August, 2008. This is the first time the great Olympic is held in this ancient country.

The Opening Ceremony started at 20 o’clock in the famous Nestle Stadium, which is the main stadium during the Olympic Sports meeting. The whole ceremony gave an astonishing impression to the whole world of the Great China’s ancient culture. The wonderful performance showed the steps to melt into the new world of China and the great joy with the Great Olympic to be held in China.

To let more people to enjoy the fun with the Olympic, Our Company built up an LED screen in the Industrial park to live Opening Ceremony and sports. Also, the Olympic is also a great chance for the LED screen industry in China. Many Chinese-made LED screens were used in the Olympic stadiums, which show the quality of the Chinese-made screen has reached a very high standard. Our company welcomes clients from all over the world to our factory to test our best quality screens.

Because of technology of LED chip or chip’s encapsulation, and some time as cover and lamps site, every lamps every modules color and brightness will have some differ, also because of used about a period of time, every colors lamps have different rate of attenuation, also will destroy LED screen’s color and lighteness uniformity.

So with a method to correction every module every dot after finished pixels is necessary. Ours latest Pixel by Pixel Correction Technology (PPCT) make it very well. Before a cabinet we correction every modules to make sure uniformity, every cabinet adjust, and after aging 3 days the last correction in factory.

After used a period of time or replacing some part of LED display, Pixel by Pixel Correction Technology (PPCT) also can give you stately uniformity.

Before correction

After cottection

Lastest weekend we have a wonderful travel in Qingyuan.Now We publish it all,wish can share our enjoyment with you.
Qingyuan is famous for its tourist attractions. These includes Five-stars drift, Feilai Temple, Yinzhan Hot Spring Area, and the indigenous custom.

Ours Travel Path

Beside North river

In Bijiashan Park

All of us.