China International Optoelectronic Expo has covered the five major fields of optical communications, sensing and laser infrared, precision optics, led, and so on, greatly expanding the optical Fair as the optoelectronics exhibition of the industrial chain content. “China International Optoelectronic Exposition has been involved in the LED field since 2001. Energy conservation, environmental protection, and low-carbon economy are the world trends. The LED industry is one of the important areas.” Yang Xiancheng said, “The Pearl River Delta accounts for half of China’s LED industry. And Shenzhen has accounted for half of the Pearl River Delta LED industry. We are very concerned about this field in Shenzhen.

The Chinese government gave a strong policy support to the LED industry. In early 2009, the Ministry of Science and Technology launched the “Ten Thousand Cities” semiconductor lighting application demonstration city plan covering 21 cities including Beijing, Shanghai, Shenzhen, and Wuhan. "LED is a sunrise industry. There is no doubt about this, but the problem is that we can't just see the government's policy support for this industry and its development prospects. We should also see its real problems, and we should focus on To solve those problems."

Last year, Yang Xiancheng organized the heads of government agencies such as the Streetlight Administration Bureau in 12 cities. “We have opened a seminar to discuss what problems these cities have encountered during the application of LED lighting,” Yang Xiancheng said. “In fact, there are many problems. For example, in Chongqing, it is a foggy and humid city. Chongqing officials have proposed how LED street lamps can not affect the illumination due to fog, and how they do not affect chips and other components due to moisture. Life expectancy, etc. These real problems all require the industry to study and solve problems."

"A lot of people are happy to sing hymns. They like to talk about government support policies. I don't mean to go 'singin' and the government support policy is there. How do we use it in the industry? More importantly, Yes, how to use it to really solve the problem." Yang Xiancheng said, "We LED industry should be down to earth, step by step, and use technological progress to promote the development of the industry, rather than going all out."

LCD Module

According to the different backlight sources, LCDs can be divided into two types: CCFL displays and LED displays.
Misunderstanding:
Many users believe that liquid crystal displays can be divided into LEDs and LCDs. To some extent, this understanding is misguided by advertisements.

The LED display on the market is not a true LED display. To be precise, it is an LED-backlit Liquid Crystal Display. The liquid crystal panel is still a traditional LCD display. In a sense, this is somewhat fraudulent. nature! South Korea`s Samsung was once convicted by the British Advertising Association as violating the country`s advertising laws because its [LEDTV" LCD TVs were suspected of misleading consumers. For liquid crystal displays, the most important key is its LCD panel and backlight type, while the LCD panels of displays on the market generally use TFT panels, which are the same. The difference between LEDs and LCDs is only their backlight types: LED The backlight and CCFL backlight (that is, fluorescent lamps) are diodes and cold cathode lamps, respectively.

LCD is the acronym for Liquid Crystal Display, which means "liquid crystal display", that is, liquid crystal display. The LED display refers to a type of liquid crystal display (LCD), that is, a liquid crystal display (LCD) with LED (light emitting diode) as the backlight source. It can be seen that LCD includes LEDs. Corresponding to the LED display is actually a CCFL display.

(1) CCFL
Refers to a liquid crystal display (LCD) with CCFL (cold cathode fluorescent lamp) as the backlight source.
The advantage of CCFL display is good color performance, but the disadvantage is higher power consumption.

(2) LED
Refers to a liquid crystal display (LCD) that uses LEDs (light emitting diodes) as a backlight source, and generally refers to WLEDs (white light LEDs).
The advantages of LED displays are small size and low power consumption. Therefore, using LEDs as a backlight source can achieve high brightness while taking into account lightness and thinness. The main disadvantage is that the color performance is worse than that of CCFL monitors, so most professional graphics LCDs still use traditional CCFL as the backlight source.

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ESEN Optoelectronics Technology Co., Ltd, , https://www.esenlcd.com

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