新闻中心

  • 新闻中心
您现在的位置:主页 > 新闻中心 >

新闻中心

济南发光字最关键部件:LED灯珠

页面更新时间:2015-09-07 10:46 来源:未知 作者:admin 点击:
 
济南发光字的最关键部件是LED灯珠。原因有三:
 
The most important part of Ji'nan is LED lamp light. There are three reasons:
 
第一,led是济南发光字中使用数量最多的关键器件,每平方米会使用几千至几万只led;
 
First, the LED luminous characters used in Ji'nan is the largest number of key devices, per square meter will be thousands to tens of LED use;
 
第二,LED是决定整屏光学显示性能的主体,直接影响观众对显示屏的评价;
 
Second, LED is the entire screen optical display performance evaluation subject, directly affect the audience on the screen;
 
第三,LED在济南发光字 http://www.kangmingda.com/ 整体成本中所占比例最大,从30%至70%不等。
 
Third, LED luminous characters in Ji'nan overall costs accounted for the largest proportion, ranging from 30% to 70%.
 
如何鉴别LED显示屏灯珠优劣
 
How to identify the advantages and disadvantages of LED display lamp
 
一:看焊点。正规的led灯带厂家生产的led灯带是采用SMT贴片工艺,用锡膏和回流焊工艺生产的。
 
A: look at the solder joint. LED lamp LED lamp with the regular manufacturers with using SMT SMD technology, used in the production of solder paste and reflow process.
 
二:看FPC质量。FPC分敷铜和压延铜两种,敷铜板的铜箔是凸出来的,细看的话能从焊盘与FPC的连接处看出来。
 
Two: the quality of FPC. FPC deposited copper and rolled copper two, copper clad plate of copper foil is convex and scrutiny to from the pads and the FPC connection point out.
 
三:看LED灯带表面的清洁度。如果采用SMT工艺生产的led灯带,其表面的清洁度非常好,看不到什么杂质和污渍。
 
Three: LED lamp belt surface cleanliness. If the LED light produced by SMT technology, the cleanliness of the surface is very good, can not see what the impurity and dirt.
 
四:看LED灯用的芯片和生产工艺,用眼睛是看不出来区别的,要用老化设备和检测设备如果你把几个厂家的LED放在老化仪上用大电流老化24小时或者更长时间,你再去测量几个厂家的LED亮度,看那个led发光强度衰减最小,衰减最小那个质量就最好。
 
Four: read the chip and production process of LED lamp, with the eyes can not see out the difference, with the aging equipment and testing equipment if you put a few manufacturers of LED on aging instrument with high current aging for 24 hours or longer, you can go to the measurement of several manufacturers of the brightness of LED, see the LED light intensity attenuation is the smallest, lowest attenuation that quality is the best.