Some Manufacturers Might Using 4k Panel on Their 1440p Monitors

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According to Prad.de, some companies are using 4k panel in their 1440p monitors.

This happens because, as it said, the costs of producing a 27-inch 3840 x 2160 panel is often lower than producing a 27-inch 2560 x 1440 QHD panel. Which manufacturers might be engaging in this practice is not mentioned, however.