Computer vision syndrome?
Computer vision syndrome? Many of us spend large chunks of our lives staring at computer screens, smartphones and tablets. Long periods of screen time can cause headaches, eyestrain and blurred vision – all symptoms of a condition that’s been termed ‘computer vision...
How do QR codes work?
QR codes are a technology that desperately wants our attention. They appear everywhere from supermarket shelves and magazines to hiking trails and tombstones. QR (Quick Response) code is the trademark name for the two dimensional barcode system. It was originally...
What is Refresh Rate in Display? How is it different from Frame Rate?
Refresh rate is the frequency at which the screen updates with new images each second, measured in hertz (cycles per second). The content may look steady on the display, but what the viewer can’t see is how fast the content is changing — up to 360 times a second. The...