The Sony 77-inch Bravia 9 Series 4K QLED is on sale today for $3,000. Score this $1,000 discount when you shop at Amazon, Best Buy, and Crutchfield.

Physicists have created the tiniest light-emitting diode (LED) displays ever 1. The image above was shown on a monochromatic display with pixels less than 100 micrometres across, about the width ...