LG has just showcased a new 5.5-inch display for smartphones that has a resolution of 2,560 x 1,440, with a pixel density of 538 PPI and 430 nits of brightness. LG is calling it a ‘Quad HD’ display because it has four times the resolution of a typical 720p HD display.
538 ppi :fp2: Why don't manufactures focus on making 300-350 ppi displays more power efficient instead ?