Professor Xie Changsheng: what are the opportunities for the optoelectronics industry?

What is the current situation and future development trend of photoelectric technology? Huazhong University of Science and Technology professor and deputy director of the Wuhan National Laboratory for optoelectronics / Xie Changsheng from photoelectric information technology, photovoltaic energy technology etc. This paper expounds the developing situation of the industry.

In terms of information technology, the information acquisition can be divided into three categories, the first category is the audio visual image class, mainly used for cameras, cameras, monitors, etc., with CCD and CMOS technology as the standard. At present, the market is mature and huge, the future development of the high resolution, high sensitivity, high response speed and low cost for the direction of development; the second category is the category of industrial sensors, part of the technology is relatively mature; the third is the special application, such as T Hertz wave, infrared and ultraviolet, X-ray detection, the the resolution to the future part of the technology of high sensitivity and space development. In addition, with three-dimensional information belongs to the special application of the array detector technology, can be used to solve the problem of image guidance, 3D imaging and ultrafast diagnosis, the future development direction of the technology for high spatial resolution and high temporal resolution. In addition, the development and application of weak signal detection technology, such as avalanche tube, multiplier tube, EMCCD, MCP, superconducting single photon detection, have been widely developed.

In the optical transmission, storage and processing technology, the overall trend is to achieve and exceed the 3T target. As far as the current situation is concerned, the optical information transmission technology, the 100G system will be commercially available, the experimental system of single fiber 160 wave * 80GB/ wave =12.8Tbps. Photoelectric information storage technology has reached the commercial single hard disk 2TB, the principle of the disc can reach 10TB. At present, the speed of photoelectric information processing has reached 1105 trillion times. In optical information technology, including the current hot technology: wireless mobile communication, the next generation Internet, NGN large capacity hard disk and solid state memory, multi-core processors and large-scale cluster processing and cloud computing.

In the photoelectric information expression, we are most familiar with the display technology as the core. Currently flat panel display has gradually replaced the traditional CRT. TFT-LCD accounted for 85% of the market, its production technology has reached the G11 (2950 x 3450 mm2), and the emergence of a high-definition display of 4 times (4096 * 2160). At the same time, LED backlight technology has also become popular. In addition, the plasma display (PDP) due to the great advantages in the field of large size, but also accounted for 10% of the market. The new OLED also began to occupy an increasing number of mobile phone screen market, and gradually to the laptop, TV and other market penetration, currently occupy about 3% of the market. Xie Changsheng said that the future development of display technology, 3D stereo TV will become a new round of high-definition flat-panel display technology.

Professor Xie Changsheng, Wuhan Summit Forum

Optical energy technology has been the focus of national scientific research, in the field of emerging technology applications such as LED, OLED and solar photovoltaic technology. The development of optical energy technology will promote energy conservation and environmental protection. In the conference site, Xie Changsheng for everyone to see the map of the world a satellite shot of the night: the dark earth continent, there are several areas being illuminated by the brilliantly illuminated ground lights, lights from the layout can be clearly seen, these places are in Europe, North America, Japan, and other economically developed coastal China place. Xie Changsheng with this black map is very vivid to show that the energy and economic development. Therefore, with the continuous progress of human development, energy conservation is a very important issue.

At present, the lighting technology has evolved from incandescent lighting to LED lighting, the future of OLED lighting and flexible OLED lighting will also be in 2010 and in 2015, slowly into the market. Solar photovoltaic technology is also developing rapidly in the two directions of high efficiency and low cost. The theoretical conversion efficiency of multi junction solar cells is up to 60%, which is an objective data. And the cost of solar cells such as the new concept of nano crystalline dyes, but also only about 1/5-1/10 of silicon-based solar cells. These are the future direction of the future development of solar energy.

In addition to photovoltaic technology, Xie Changsheng pointed out that grid connected photovoltaic technology is an important technology can not be ignored.

Traditional optoelectronic technology brings out new applications

The traditional optoelectronic technology has been more mature, and is expanding to new applications. In this forum, the United States and the United States communications IC clock products division president MichaEL Smith to share with you the development of laser micro projector.

Michael starting from the principle of laser projectors, to give a detailed comparison of the Laser/MEMS, DLP, LCoS these advantages and disadvantages of several technologies. DLP technology has the advantage of reliable and clear image, but at the same time, it also has the optical components occupy a large size, high cost, need to further increase the size of the condenser, the lamp light scattering and LED always consume too much power and battery and single supplier, the price is no room for negotiation. LCoS has the advantage of low cost, but the optical components of large size, brightness and contrast is low, the production process is complicated and reliability problems, which are "flawed". In contrast, the laser projection technology is compact optical components, the size of its 2cc to 5cc can be embedded in the vast majority of smart phones, PC and camera. Simultaneous,