03.26.24
Japan Display Inc. (JDI) announced that its paper, “Intelligent Reflecting Surface Based on LCD-TFT Technology for 47 GHz Radio Waves,” has received the Best Paper Award at the 30th International Display Workshop (IDW '23) held in Niigata City in December 2023.
Intelligent Reflecting Surface (IRS) is a promising device that can control the reflection direction of radio waves arbitrarily. The IRS is a reflector with tiny reflective elements, and by controlling the reflection characteristics of each element, it is possible to control the reflection direction.
Millimeter waves which enable high-capacity communication exemplified by 5G mobile network, have high directivity and face challenges in reaching certain areas with radio waves. By reflecting millimeter waves in the desired direction, the IRS is expected to improve communication environments in areas where radio waves are difficult to reach, such as those shadowed by buildings.
Japan Display’s IRS has a structure that applied the liquid crystal display technology the company has developed over many years and utilizes precise liquid crystal alignment control technology with TFT. The award was given in recognition of the successful development of an IRS reported in the paper, which can switch the reflection direction of vertically incident 47GHz radio waves from 0 to 60 degrees.
Intelligent Reflecting Surface (IRS) is a promising device that can control the reflection direction of radio waves arbitrarily. The IRS is a reflector with tiny reflective elements, and by controlling the reflection characteristics of each element, it is possible to control the reflection direction.
Millimeter waves which enable high-capacity communication exemplified by 5G mobile network, have high directivity and face challenges in reaching certain areas with radio waves. By reflecting millimeter waves in the desired direction, the IRS is expected to improve communication environments in areas where radio waves are difficult to reach, such as those shadowed by buildings.
Japan Display’s IRS has a structure that applied the liquid crystal display technology the company has developed over many years and utilizes precise liquid crystal alignment control technology with TFT. The award was given in recognition of the successful development of an IRS reported in the paper, which can switch the reflection direction of vertically incident 47GHz radio waves from 0 to 60 degrees.