Japanese company IO Data has announced a pair of monitors with a blazing fast 240 Hz refresh rate and a sub-1 ms response time. Part of the reason the response time is so low is the usage of TN (Twisted Nematic) panels on the design, which have historically presented faster response times than other mainstream panel technologies. These are available in a 24" size with varying specs according to the refresh rate: there are 60 Hz, 144 Hz, and 240 Hz panels, each with a maximum brightness of 250, 350, and 400 cd/m². Response times vary in 0.8, 0.7, and 0.6 ms, respectively. It's unclear which technology was used to achieve these response times - either some sort of strobe-based lighting, or an impressive overdrive function.IO Data only makes its monitors available to their domestic market of Japan, so it's likely these won't be available for the global market. However, since these panels aren't manufactured in-house, but are purchased from a supplier (the amount of companies that have the capability to produce their own LCD panels is thin, to say the least), other companies are bound to introduce products based on these panels. IO Data's GigaCrysta-series displays with a sub-1 ms response time are currently available for $142 (60Hz), $265 (144 Hz) and $380 (240 Hz) on Amazon japan.