 저는 지금의 기술과 high-performance 기술에 대한 현대 기술을 believes that current electronics based on the big size and high performance and huge energy-consuming electronics changes its paradigm to flexible, lightweight, and cell-powered devices that can be used in human-friendly electronics. Here's our group's achievements that one plastic substrate generating power itself and computing and communicating with others that can detecting or treating the disease or even blind people can see. And first topic that I want to discuss is the cell power energy. If device generating power itself, they can be used in implantable biomedical device and sensor network for the environment and safety and energy source for the flexible electronics and the machines. And here's our group's vision that shows that one plastic substrate generating power and computing light emitting device and communication with other and then attached to the human organs detecting the signal and treating the disease. How we make cell-powered devices is the thin plastic substrate we fabricate flexible piezoelectric nanomaterials so bending the plastic substrate or slight movement of a plastic substrate generating the power. Our device is achieved 40 times higher than current world record. And by using this slight movement of human biomechanical movement can generate power enough to operating the implantable face maker realizing cell-powered face makers. This shows that the flexible plastic substrate by bending motion can turn you on the 100 led and then movement of a plastic can supply the energy to make a face maker to regulate the heartbeat to make cell-powered face maker. One plastic substrate in backside cell-powered energy devices implant flexible gallium arsenide led making a fully flexible system to operate without outside energy sources. Next slide, another demonstration of cell-powered device by mixing two nanomaterials together in polymeric matrix they can making a energy harvesting device that can be flexible and stretchable and slight movement of a finger and full step can generating the power. Here demonstration shows a flexible thin film battery. Look at how the flexibility can we achieve with our battery. And then the right image shows that one plastic substrate implant flexible gallium arsenide led backside flexible thin film battery so that without outside energy source we can demonstrate the display. We also demonstrate the high density plastic flexible memory devices. We fabricate high density memory device on glass substrate and radiating laser from the backside. We only can transfer the top 100 nanometer high density memory on plastic substrate. We also can make a flexible computing LSI chip on plastic substrate they are very flexible and then they can operate the flexible display and very flexible smartwatch and using the communication tool for artificial retina system. As you know Korean major industry already has the flexible display technology will be out soon. Our group also licensed one of the technology and then to put our technology in mass production line using the laser lift-up of active matrix inorganic materials. Final product that I wanted to introduce the flexible inorganic gallium nitride and gallium arsenide led these material or devices are perfect candidate for the future biomedical devices that can detecting and treating the disease. So here's summary. KAIST developed flexible energy source flexible optoelectronic led high density memory and computation and communication tool merged with the flexible display that can make a self-powered fully flexible electronic system. Here's my question. How will flexible high tech can increase quality of life or changing our lifestyle? Please join me to discuss our future life in crazy idea. Thank you.