欧美顶级metart裸体全部自慰,一区二三国产好的精华液,亚洲精品456在线播放,久久zyz资源站无码中文动漫

Welcome to Hangzhou Huatai Intelligent Technology Co., Ltd.!
Language:

Analysis of Heat Dissipation of LED Display

Analysis of Heat Dissipation of LED Display

LED display why can be widely used, my summary is the following:

1. Extensibility: LCD screen to do the bigger, the higher the production line equipment investment. The LED display size is very easy to increase, just like building blocks. Resolution is also convenient to achieve according to user needs.

2. Full color: light bulbs, neon lights are all monochrome, LED RGB RGB to achieve a combination of three primary colors.

3. High reliability: LED is solid lighting, high reliability, unlike neon tubes, bulbs and the like need vacuum tube.

4. Long life: LED chip theoretical life can reach 100,000 hours, the actual life of more than 30,000 hours

5. Environmentally friendly: LED itself is energy-saving pollution-free products

LED is currently the biggest problem is the heat, LED display is the same. LED display power consumption is very large, a considerable part of the energy wasted on the heat. Fever will bring the following questions:

1. Wavelength drift: Wavelength drift will cause color correction problems, LED in the low temperature and high temperature, the wavelength drift is relatively large. According to the experimental data, the temperature changes once, the wavelength changes 0.2-0.3nm.

2. Output brightness reduction: temperature changes per degree Celsius lead to 1% of the output brightness changes, which the most affected by the red light. From -40 degrees 180% brightness, to 120 degrees brightness less than 50%, that is, the brightness of the red light reduced by nearly two-thirds. Relatively speaking, the blue light and green light are not so strong temperature impact, especially the blue light. When the temperature rises when there is a problem, different colors of the LED issued by the brightness is not the same,

3. Temperature rise leads to LED life shortening: According to a US laboratory data, junction temperature increased from 63C to 74C, LED life from 36,000 hours down to 16,000 hours.

4. Excessive cooling components result in increased system costs.

5. Waste energy and improve user costs.

夜色福利站www国产在线视频| 欧美性巨大╳╳╳╳╳高跟鞋| 免费无码国产v片在线观看| 夜夜春夜夜爽| 人妻熟妇乱又伦精品视频 | 成人精品一区二区三区电影| 青楼妓女禁脔道具调教sm| 少妇被粗大的猛烈进出视频| 亚洲第一女人av| 草莓视频成人| 色欧美片视频在线观看| 小鲜肉自慰网站| 狂猛欧美激情性xxxx大豆行情| 天天做天天躁天天躁| 成片免费观看视频大全| 高h喷水荡肉爽文np肉色学校| 国内精品久久久久久99| 狼狼综合久久久久综合网| 亚洲av色香蕉一区二区三区| 久久aⅴ人妻少妇嫩草影院| 成年女人a毛片免费视频| 成人自慰女黄网站免费大全| 久久人妻无码一区二区| 国产午夜视频在线观看| 99精品久久99久久久久| 波多野结衣的av一区二区三区| 天堂资源中文网| 国产精品亚洲一区二区三区| 亚洲av无码精品色午夜app| √新版天堂资源在线资源| 日出水了特别黄的视频| 在线永久看片免费的视频| 男女一边摸一边做爽爽的免费阅读| 亚洲日韩欧美国产高清αv| 国产精品午夜无码av体验区| 欧美va天堂在线电影| 老太脱裤让老头玩ⅹxxxx| 国产农村妇女毛片精品久久| 亚洲精品无码久久久久| 青青草原亚洲| 亚洲欧美综合区丁香五月小说 |