From the Engadget review (http://www.engadget.com/2012/08/14/lenovo-thinkpad-x1-carbon-review/ http://www.engadget.com/2012/08/14/lenovo-thinkpad-x1-carbon...):

From the Engadget review (http://www.engadget.com/2012/08/14/lenovo-thinkpad-x1-carbon-review/ http://www.engadget.com/2012/08/14/lenovo-thinkpad-x1-carbon...): "Maximum brightness here is 300 nits, a figure that's a bit underwhelming. It's a fair bit dimmer than the Samsung Series 9, for example, which clocks in at 400, and outdoor visibility in bright sunlight is virtually impossible here. But, Lenovo kindly opted for a matte display, ditching the glossy Gorilla Glass found in the prior X1."