无码国产精品一区二区高潮,国产精品兄妹在线观看麻豆,久久99亚洲网美利坚合众国,久久亚洲av成人无码国产

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.

国产精品久久久久久久| 成人无码一区二区三区| 国产偷窥熟女精品视频大全| 无码av天堂一区二区三区| 欧美性猛交xxxx乱大交| 中国老熟妇506070| 亚洲人成网站999久久久综合| 一本色道久久hezyo无码| 国产亚洲美女精品久久久| 亚洲男人的天堂在线播放| 精品人妻人人做人人爽夜夜爽| 亚洲av无码精品色午夜果冻不卡| 人人妻人人澡人人爽精品日本| a级毛片无码免费真人久久| 亚洲av无码精品国产成人| 暖暖视频日本在线观看| 亚洲精品美女久久7777777| 大陆熟妇丰满多毛xxxx| 久久精品国产69国产精品亚洲| 新狼窝色av性久久久久久| 欧美日韩人妻精品一区二区三区| 亚洲中文字幕无码一久久区| 欧洲vat一区二区三区| 与子敌伦刺激对白播放| 久久丫精品国产亚洲av不卡| 亚洲av综合a色av中文| 狠狠色噜噜狠狠狠狠888奇禾| 曰韩内射六十七十老熟女影视| 国产欧美一区二区精品久久久| 免费人成年小说在线观看 | 午夜dv内射一区二区| 久久精品国产亚洲av忘忧草18| 亚洲视频一区| 午夜dv内射一区区| 国产成a人亚洲精v品无码| 久久亚洲私人国产精品| 国产精品污www一区二区三区| 国内精品国产成人国产三级| 国产乱人激情h在线观看| 国产精品无码免费播放| 久久久久久久综合色一本|