两根大肉大捧一进一出好爽视频丨看全色黄大色大片免费久久丨亚洲人成在线影院丨国产在线视频www色丨国产乱子伦60女人的皮视频

CONTACT US
760117650
1178152560
TEL :
400-0519-050
LOCATION : HOME > NEWS > TECHNICAL SUPPORT
TECHNICAL SUPPORT News Center

Teach you how to judge the quality of LED transparent screen

2019-07-17 1337TIMES BACK

     LED transparent screen has been selling like a raging fire, and the manufacturers of LED transparent screen have been everywhere from few to now. How to judge the quality of LED transparent screen? Some people say that the quality of the box can be roughly judged by the appearance. Is that true? At present, many manufacturers produce transparent LED panels similar, even though the appearance is different, the structure is different. The principle is the same, circuit boards, beads, wires and so on. If we can find a good transparent LED display screen with our real gold eyes, Xiaobian will make a brief introduction here.

     1. Brightness comparison, the acrylic board will be closely attached to the same number of modules and then slowly raise a small distance, this time to see whether the brightness of the beads can meet their own requirements. Of course, it is more direct to put the module directly in the word. The higher the brightness, the higher the requirement for the lamp beads, and the higher the Chen Ben. Pure indoor environment can use low brightness, but if it is window LED transparent screen or LED glass curtain wall screen, then it requires a high brightness LED transparent screen can be.

     2. While looking at the brightness, we should pay attention to the uniformity of the light of the beads. When looking at the white light, we must pay attention to whether there is color difference (this is quite important) - if you cover it with a thin white paper, you may not see it, so you should use a certain thickness of acrylic. Colorimetric aberration is the most important part of distinguishing the quality, and it is also one of the main reasons leading to the price difference of LED transparent screen.

     3. Wire identification. High quality wire, through UL certification, these through the LED transparent screen manufacturer instructions are unreliable, so the most direct way is to pull out the outer skin, count the number of cores inside! With 15, 17, 19 cores or even more than 20, 30 core modules should not be worse than 14, 11 core modules, and vice versa.

     4. bulb temperature. After lighting up for a period of time, touch the LED beads with your hand, the temperature is very high and even hot hands are certainly not as stable as low temperature.

     5. Weld joint quality. Full solder joint proves good welding technology, high brightness proves good solder use; serious is virtual soldering, prone to poor contact, follow-up maintenance troubles.

     6. LED transparent screen sticker mode: At present, there are two ways to make LED transparent screen, one is positive light, the other is side light. Although the side light transmittance is relatively high, the packaging technology of the lamp beads needs to be tested in the market, while the positive light-emitting lamp beads use the traditional LED display beads, which have been tested by the market and the quality is very stable.

Source: Huicong LED screen



CopyRight ? 2019 Jiangsu Liangcai Electronics Co., Ltd. ICP:蘇ICP備16047866號-1 LINKS:

Jiangsu electronic display>Jiangsu LED display>Indoor led display >Changzhou led display>Outdoor led display

主站蜘蛛池模板: 国精产品999国精产| 亚洲a∨无码一区二区三区| 国产亚洲精久久久久久无码苍井空 | 日韩精品中文字幕无码专区 | 国产精品涩涩涩视频网站| 又紧又大又爽精品一区二区| 人人妻人人澡人人爽国产| 色婷婷狠狠97成为人免费| 国产精品久久久久久不卡盗摄 | 欧美日韩一区二区成人午夜电影| 国产精品成人片在线观看| 亚洲日本乱码一区二区产线一∨| 群交射精白浆视频| 亚洲国产精品成人天堂| 亚洲午夜理论片在线观看| 国产亚洲精品视觉盛宴| 成人午夜精品无码区久久| 隔壁老王国产在线精品| 国产成人高清精品免费| 久久人搡人人玩人妻精品| 夜夜高潮夜夜爽高清完整版1| 国产精品沙发系列| 无人区一线二线三线乱码| 亚洲国产成人久久综合| 久久国产36精品色熟妇| av无码人妻无码男人的天堂| 亚洲免费视频免在线观看| 国产乱人伦av麻豆网| 国产99视频精品免费专区| 让少妇高潮无乱码高清在线观看| 国产女人18毛片水真多18精品| 国产久热精品无码激情| 色欲久久综合亚洲精品蜜桃| 图片区小说区av区| 黄a无码片内射无码视频 | 国产在线拍揄自揄视频网试看| 国产精品人妻一区二区高| 影音先锋人妻啪啪av资源网站 | 少妇一边呻吟一边说使劲| 亚洲人成网站18禁止一区| 久久这里只有精品18|