In the past few years, LED display screens have been widely used in the field of small and medium-sized displays, and have gradually entered the fields of large-area display and lighting. In 1987, Tang and others of Kodak Corporation of the United States used organic small molecule semiconductor materials to successfully develop low-voltage, high-brightness organic light-emitting diodes (LED displays), which demonstrated the wide application prospects of organic light-emitting devices for the first time. Since then, LED display has become a research hotspot in academia and industry, and LED display products have gradually entered people's daily lives.

LED display

LED display industry status and development direction:

As an LED display, the LED display, which is characterized by flat light emission, has the advantages of easier realization of white light, ultra-thin light source and light source of arbitrary shape, and has the advantages of high efficiency, environmental protection and safety.

In the field of lighting, LED displays can not only be used as indoor and outdoor general lighting, backlight sources and decorative lighting, etc., but also can be used to prepare artistic flexible luminous wallpapers, monochromatic or color luminous windows, wearable luminous warning signs and other dreams. General product.

Seeing the huge potential of white light LED displays in the field of lighting, many LED display companies and internationally well-known lighting product companies such as GE in the United States, Osram in Germany, Philips in the Netherlands, Matsushita Electric in Japan, and Yiguang in China have all launched LED displays. In the research and development of screen devices, small batches of products are already on the market.

In the future, LED display products will develop in the direction of large size, transparency, flexibility, and arbitrarily shaped appearance. In terms of performance, they will continue to improve the light efficiency and extend the life span, and the price will also be reduced. There is a gap in lighting technology.

The next 5-10 years will be a critical period for the development of LED display technology, industry, and market. Governments and companies in the United States, China and other countries have increased investment and research and development efforts in LED displays, and strive to occupy the future LED display industry. Advantageous position.

At present, the development goal of LED display screen devices is to make them truly become flat light sources with low cost, high efficiency and long life. Its technological development trend is to achieve large area, high efficiency, high stability and high color rendering index under high brightness, while striving to reduce the cost of the device.

With the strong support of governments around the world and the great attention of the industry, the research and development of LED display screens has made significant progress. As early as 2006, UDC in the United States developed an LED display device with an efficiency of 103 lm/W, but the lifespan was not ideal, and it was far from practical. In the following years, the research and development of LED display technology in various countries To improve both efficiency and life span at the same time.

While the LED display technology is steadily improving, manufacturers are also actively promoting the marketization of LED display products. Since Lianchengfa Technology Co., Ltd. first launched the first LED display product in China in 2002, various manufacturers around the world have successively launched LED display products, which has promoted the transformation of LED display from research and development to the market. Since 2008, China and Japan have also launched LED display products in the market.