LED screen into the small era of the four major trends

With the continuous improvement of the overall level of microelectronics assembly technology, high density indoor LED display pixel center distance continues to make a breakthrough, indoor LED display pixel center distance has entered the era of 1.Xmm. In outdoor applications, improved with LED packaging technology and improve the level of protection of the outdoor module broke the outdoor full color pixels from the 10mm pixel shackles, center distance limits are constantly being refreshed, 5.Xmm pixels away from the center of the outdoor full color large screen has been used in the market. With the LED screen into the small era, while the industry has also seen some new trends.

Trend 1: small spacing LED display will become the mainstream of indoor and outdoor market applications

The small spacing LED display is pointing the spacing of P2.5 in the following LED display, the pixel level control technology, to achieve the display pixel unit brightness, color reduction and unity of the state control. Since 2010, the conventional LED display competition is particularly fierce, the price war almost occupied the basic profit of the enterprise. Along with the rapid development of the market, a variety of emerging fields, outdoor media, advertising, outdoor table stickers, special-shaped screen Market brisk performance, including high density small pitch LED display has become the most concern in the industry products.

It now appears that the relatively small profit margins LED screen, in the monitoring, command, scheduling, meetings and other high-end areas also have a greater potential for development, the future prospects.

Trend two: how to make the current density is the key to the success or failure of LED display

In the field of lighting, in order to obtain high brightness lighting products, terminal manufacturers generally choose to use the high current density chip". However, in the LED display applications into the small spacing era, the appropriate LED current density is exactly the opposite. This is mainly due to the application of the screen, the product is not better or worse than anyone else's screen is bright, but who's done more dark screen, dark to the dark environment will not cause irritation to the human eye.

However, the requirement of the LED device has a higher demand, because when the current density is less than 0.3~0.4 amperes, how to deal with the relationship between the conduction and leakage current of semiconductor devices is a difficult problem.

Trend three: the application of small current technology to the device packaging level put forward more stringent requirements

With the small current chip has gradually become the mainstream of the industry, to solve the problem of reverse leakage current will become the key to the success or failure of display products. The maintenance of the small screen display is very difficult, which gives the current control of the chip, antistatic ability and other reliability parameters put forward higher requirements. The reliability of the device is closely related to the packaging technology, so it puts forward more stringent requirements on the packaging of the device. At present, China's mainland market demand for small spacing QFN package is about a few hundred KK per month, the future is likely to exceed 1000kk, but the mainland enterprises related to production capacity is almost zero. In the long run, QFN technology will gradually replace the PLCC technology has become the mainstream trend of the future LED packaging, packaging companies may reasonably enter the field.

Trend four: LED display real market is to replace a single projector products

From the perspective of the status quo of the development of the industry, hope that the LED display (especially small screen display) into the home market and more than one hundred times the growth rate to achieve leapfrog development is unrealistic.

Compared with the LCD screen, the absolute advantage of LED display is that it has a first-class energy-saving effect. However, in terms of user experience and cost price, LED display has no absolute advantage.

However, compared to the current market presence of a single projection products, LED display in color, energy consumption and clarity has a great advantage. Therefore, instead of a single projection products will be the key to the future development of LED display market entry point.

Microscopic point

@ Chinese optics and Optoelectronics Industry Association vice chairman Guan Jizhen: in the innovation application of LED display market, creative market, small spacing product market, advertising media market has become mainstream; in professional service innovation, control board, professional engineering services has become a highlight in the marketing mode; innovation, the emergence of export-oriented marketing terminal marketing, channel marketing, OEM marketing and other modes.

@ Riyadh chairman Li Jun: Chinese one thousand or two thousand LED production enterprises, serious excess capacity, will only make the gross margin decline in a price war, kill one thousand self harm eight hundred. If you just do OEM, the lifeline is always in the hands of others. In the long run, we must have our own brand, in order to create high efficiency and sustainable development.

Li Honghua, chairman of silicon core electronics: in the indoor market, small spacing LED display products on the traditional TV wall, rear projection products have a large market space. With the continuous improvement of the density, LED display market is also increasingly wide. At present, in the television, high-end conference rooms, high-end consumer goods, simulation and other places, small spacing products have shown strong competitiveness.