Even though the technological developments have brought about many significant changes, image quality is one of the few factors that are really difficult to work with. Be it PCs, smartphones, printers, television sets or any other device concerned with the management or display of visual images – getting the right image quality tends to become quite a challenge at times.
Researchers at the University of California have come up with an inexpensive yet powerful device that is capable of boosting the quality of images. The device itself comprises high mobility semi-conductors that have been specifically deisgned for ensuring compatibility of operation with LED and OLED displays.
Yang (Jr. Professor of Engineering at the UCLA Henry Samueli School of Engineering and Applied Science) expressed, “Our semiconductor process is faster, less expensive and more reliable than existing processes. We strongly believe it can be used as a technology to replace existing processes and scale up production of thin-film transistors”
A transistor’s performance is measured by the mobility of the electrons which is an indication of the preciseness with which the voltage as well as the current may be regulated to turn the pixels on and off as per requirement. Transistors that have high mobility ratings are able to adjust the brightness and colour of the screen with greater ease and with higher efficiency. The device is made up of indium gallium zinc oxide and indium tin zinc oxide and has specially designed channels that are distinctively different from usual TFTs.
You Sreung Rim is a postdoctoral researcher in UCLA’s materials science and engineering department and the lead author of the research. In light of the development of this device, he stated, “The improved mobility represents a breakthrough for solution-processed metal oxide TFTs. Our device’s performance is comparable to that of commercial TFTs, but it can be produced at a much lower cost.” The details of the device and its subsequent applications have been published in the journal, “Advanced Materials”. If this device is brought into commercial production, it would not only provide a highly cost effective solution for achieving high image quality, but it would also provide the foundation for further developments to be initiated.
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