Acer has pulled the wraps off a new line of ultra-thin computer displays that are in the S1 series. The series has three screen sizes including a 20-inch, 21.5-inch, and a 23-inch size.

The smallest of the screens is only 13mm thick and the other two are 15mm thick. The displays use white LED backlights and have no hazardous substances inside.

The screens feature a 12M:1 dynamic contrast ratio and have a 16:9 aspect ratio. The two larger screens support 1920 x 1080 resolution. The 20-inch is $169.99, the 21.5-inch is $219.99, and the 23-inch is $269.99.